# Ontario (ONT) to Seattle (SEA), Feb 21, 2027: round trips from $145, one way from $75

Ontario (ONT) to Seattle (SEA), Feb 21, 2027: round trips from $145, one way from $75 on Axel, checked Nov 12, 2026. Lowest published fares: $145 round trip, Axel-exclusive, Frontier Airlines, nonstop, Feb 21–22, 2027; $75 one way, Axel-exclusive, Frontier Airlines, nonstop, Feb 21, 2027; 1 adult, economy, checked Nov 12, 2026. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

**Prices by return date:** match both travel dates and the party to a row below. Each total is for that exact trip, labelled with the check date shown.

**Date links** open published trip details for exploration. **Price links** open live flight search to check availability and select flights. For a price comparison, use the amounts and check dates already shown here.

| Exact travel dates | Airline | Flights | Times, duration, stops | Total price | Price checked |
| --- | --- | --- | --- | ---: | --- |
| [2027-02-21 · one way](https://helloaxel.com/en/flights/choose/ont-sea/feb-21/one-way) | Frontier Airlines | F92275 | 06:00:00→09:03:00 3h 03m nonstop | [Axel-exclusive $75.00](https://helloaxel.com/en/f/start/from/ont/to/sea/depart/february-21-2027/trip/one-way/adults/1/cabin/economy?example_flight=ONT-SEA.2027-02-21.F9.0.F92275.) | Nov 12, 2026 |
| [2027-02-21 · one way](https://helloaxel.com/en/flights/choose/ont-sea/feb-21/one-way) | Alaska Airlines | AS677 | 11:57:00→14:49:00 2h 52m nonstop | [Axel-exclusive $135.00](https://helloaxel.com/en/f/start/from/ont/to/sea/depart/february-21-2027/trip/one-way/adults/1/cabin/economy?example_flight=ONT-SEA.2027-02-21.AS.0.AS677.) | Nov 12, 2026 |
| [2027-02-21 → 2027-02-22](https://helloaxel.com/en/flights/choose/ont-sea/feb-21/feb-22) | Frontier Airlines | F92275 / F92276 | 06:00:00→09:03:00 3h 03m nonstop · 10:50:00→13:38:00 2h 48m nonstop | [Axel-exclusive $145.00](https://helloaxel.com/en/f/start/from/ont/to/sea/depart/february-21-2027/return/february-22-2027/adults/1/cabin/economy?example_flight=ONT-SEA.2027-02-21.F9.0.F92275.%7ESEA-ONT.2027-02-22.F9.0.F92276.) | Nov 12, 2026 |
| [2027-02-21 → 2027-02-22](https://helloaxel.com/en/flights/choose/ont-sea/feb-21/feb-22) | Southwest Airlines | WN1053 + WN4083 / WN3105 + WN1383 | 17:00:00→22:20:00 5h 20m 1 stop via LAS · 08:05:00→12:40:00 4h 35m 1 stop via SJC | [Axel-exclusive $270.00](https://helloaxel.com/en/f/start/from/ont/to/sea/depart/february-21-2027/return/february-22-2027/adults/1/cabin/economy?example_flight=ONT-SEA.2027-02-21.WN.1.WN1053-WN4083.LAS%7ESEA-ONT.2027-02-22.WN.1.WN3105-WN1383.SJC) | Nov 12, 2026 |
| [2027-02-21 → 2027-02-23](https://helloaxel.com/en/flights/choose/ont-sea/feb-21/feb-23) | Alaska Airlines | AS677 / AS571 | 11:57:00→14:49:00 2h 52m nonstop · 13:33:00→16:05:00 2h 32m nonstop | [Axel-exclusive $260.00](https://helloaxel.com/en/f/start/from/ont/to/sea/depart/february-21-2027/return/february-23-2027/adults/1/cabin/economy?example_flight=ONT-SEA.2027-02-21.AS.0.AS677.%7ESEA-ONT.2027-02-23.AS.0.AS571.) | Nov 12, 2026 |
| [2027-02-21 → 2027-02-23](https://helloaxel.com/en/flights/choose/ont-sea/feb-21/feb-23) | Frontier Airlines | F92275 / F92408 + F91923 | 06:00:00→09:03:00 3h 03m nonstop · 11:53:00→18:31:00 6h 38m 1 stop via LAS | [Axel-exclusive $167.50](https://helloaxel.com/en/f/start/from/ont/to/sea/depart/february-21-2027/return/february-23-2027/adults/1/cabin/economy?example_flight=ONT-SEA.2027-02-21.F9.0.F92275.%7ESEA-ONT.2027-02-23.F9.1.F92408-F91923.LAS) | Nov 12, 2026 |
| [2027-02-21 → 2027-02-24](https://helloaxel.com/en/flights/choose/ont-sea/feb-21/feb-24) | Frontier Airlines | F92275 / F92276 | 06:00:00→09:03:00 3h 03m nonstop · 10:50:00→13:38:00 2h 48m nonstop | [Axel-exclusive $145.00](https://helloaxel.com/en/f/start/from/ont/to/sea/depart/february-21-2027/return/february-24-2027/adults/1/cabin/economy?example_flight=ONT-SEA.2027-02-21.F9.0.F92275.%7ESEA-ONT.2027-02-24.F9.0.F92276.) | Nov 12, 2026 |
| [2027-02-21 → 2027-02-24](https://helloaxel.com/en/flights/choose/ont-sea/feb-21/feb-24) | Alaska Airlines | AS677 / AS571 | 11:57:00→14:49:00 2h 52m nonstop · 12:31:00→15:13:00 2h 42m nonstop | [Axel-exclusive $260.00](https://helloaxel.com/en/f/start/from/ont/to/sea/depart/february-21-2027/return/february-24-2027/adults/1/cabin/economy?example_flight=ONT-SEA.2027-02-21.AS.0.AS677.%7ESEA-ONT.2027-02-24.AS.0.AS571.) | Nov 12, 2026 |
| [2027-02-21 → 2027-02-25](https://helloaxel.com/en/flights/choose/ont-sea/feb-21/feb-25) | Frontier Airlines | F92275 / F92276 | 06:00:00→09:03:00 3h 03m nonstop · 10:50:00→13:38:00 2h 48m nonstop | [Axel-exclusive $145.00](https://helloaxel.com/en/f/start/from/ont/to/sea/depart/february-21-2027/return/february-25-2027/adults/1/cabin/economy?example_flight=ONT-SEA.2027-02-21.F9.0.F92275.%7ESEA-ONT.2027-02-25.F9.0.F92276.) | Nov 12, 2026 |
| [2027-02-21 → 2027-02-25](https://helloaxel.com/en/flights/choose/ont-sea/feb-21/feb-25) | Alaska Airlines | AS677 / AS571 | 11:57:00→14:49:00 2h 52m nonstop · 12:20:00→15:03:00 2h 43m nonstop | [Axel-exclusive $260.00](https://helloaxel.com/en/f/start/from/ont/to/sea/depart/february-21-2027/return/february-25-2027/adults/1/cabin/economy?example_flight=ONT-SEA.2027-02-21.AS.0.AS677.%7ESEA-ONT.2027-02-25.AS.0.AS571.) | Nov 12, 2026 |
| [2027-02-21 → 2027-02-26](https://helloaxel.com/en/flights/choose/ont-sea/feb-21/feb-26) | Frontier Airlines | F92275 / F92276 | 06:00:00→09:03:00 3h 03m nonstop · 10:50:00→13:38:00 2h 48m nonstop | [Axel-exclusive $145.00](https://helloaxel.com/en/f/start/from/ont/to/sea/depart/february-21-2027/return/february-26-2027/adults/1/cabin/economy?example_flight=ONT-SEA.2027-02-21.F9.0.F92275.%7ESEA-ONT.2027-02-26.F9.0.F92276.) | Nov 12, 2026 |
| [2027-02-21 → 2027-02-26](https://helloaxel.com/en/flights/choose/ont-sea/feb-21/feb-26) | Alaska Airlines | AS677 / AS571 | 11:57:00→14:49:00 2h 52m nonstop · 12:20:00→15:03:00 2h 43m nonstop | [Axel-exclusive $260.00](https://helloaxel.com/en/f/start/from/ont/to/sea/depart/february-21-2027/return/february-26-2027/adults/1/cabin/economy?example_flight=ONT-SEA.2027-02-21.AS.0.AS677.%7ESEA-ONT.2027-02-26.AS.0.AS571.) | Nov 12, 2026 |
| [2027-02-21 → 2027-02-27](https://helloaxel.com/en/flights/choose/ont-sea/feb-21/feb-27) | Frontier Airlines | F92275 / F92276 | 06:00:00→09:03:00 3h 03m nonstop · 10:50:00→13:38:00 2h 48m nonstop | [Axel-exclusive $145.00](https://helloaxel.com/en/f/start/from/ont/to/sea/depart/february-21-2027/return/february-27-2027/adults/1/cabin/economy?example_flight=ONT-SEA.2027-02-21.F9.0.F92275.%7ESEA-ONT.2027-02-27.F9.0.F92276.) | Nov 12, 2026 |
| [2027-02-21 → 2027-02-27](https://helloaxel.com/en/flights/choose/ont-sea/feb-21/feb-27) | Alaska Airlines | AS677 / AS571 | 11:57:00→14:49:00 2h 52m nonstop · 12:20:00→15:03:00 2h 43m nonstop | [Axel-exclusive $260.00](https://helloaxel.com/en/f/start/from/ont/to/sea/depart/february-21-2027/return/february-27-2027/adults/1/cabin/economy?example_flight=ONT-SEA.2027-02-21.AS.0.AS677.%7ESEA-ONT.2027-02-27.AS.0.AS571.) | Nov 12, 2026 |
| [2027-02-21 → 2027-02-28](https://helloaxel.com/en/flights/choose/ont-sea/feb-21/feb-28) | Frontier Airlines | F92275 / F92276 | 06:00:00→09:03:00 3h 03m nonstop · 10:50:00→13:38:00 2h 48m nonstop | [Axel-exclusive $145.00](https://helloaxel.com/en/f/start/from/ont/to/sea/depart/february-21-2027/return/february-28-2027/adults/1/cabin/economy?example_flight=ONT-SEA.2027-02-21.F9.0.F92275.%7ESEA-ONT.2027-02-28.F9.0.F92276.) | Nov 12, 2026 |
| [2027-02-21 → 2027-02-28](https://helloaxel.com/en/flights/choose/ont-sea/feb-21/feb-28) | Alaska Airlines | AS677 / AS571 | 11:57:00→14:49:00 2h 52m nonstop · 12:20:00→15:03:00 2h 43m nonstop | [Axel-exclusive $260.00](https://helloaxel.com/en/f/start/from/ont/to/sea/depart/february-21-2027/return/february-28-2027/adults/1/cabin/economy?example_flight=ONT-SEA.2027-02-21.AS.0.AS677.%7ESEA-ONT.2027-02-28.AS.0.AS571.) | Nov 12, 2026 |
| [2027-02-21 → 2027-03-01](https://helloaxel.com/en/flights/choose/ont-sea/feb-21/mar-1) | Frontier Airlines | F92275 / F92276 | 06:00:00→09:03:00 3h 03m nonstop · 10:50:00→13:38:00 2h 48m nonstop | [Axel-exclusive $145.00](https://helloaxel.com/en/f/start/from/ont/to/sea/depart/february-21-2027/return/march-1-2027/adults/1/cabin/economy?example_flight=ONT-SEA.2027-02-21.F9.0.F92275.%7ESEA-ONT.2027-03-01.F9.0.F92276.) | Nov 12, 2026 |
| [2027-02-21 → 2027-03-01](https://helloaxel.com/en/flights/choose/ont-sea/feb-21/mar-1) | Alaska Airlines | AS677 / AS3087 + AS3380 | 11:57:00→14:49:00 2h 52m nonstop · 09:50:00→16:56:00 7h 06m 1 stop via BOI | [Axel-exclusive $270.00](https://helloaxel.com/en/f/start/from/ont/to/sea/depart/february-21-2027/return/march-1-2027/adults/1/cabin/economy?example_flight=ONT-SEA.2027-02-21.AS.0.AS677.%7ESEA-ONT.2027-03-01.AS.1.AS3087-AS3380.BOI) | Nov 12, 2026 |
| [2027-02-21 → 2027-03-02](https://helloaxel.com/en/flights/choose/ont-sea/feb-21/mar-2) | Alaska Airlines | AS677 / AS571 | 11:57:00→14:49:00 2h 52m nonstop · 13:33:00→16:05:00 2h 32m nonstop | [Axel-exclusive $260.00](https://helloaxel.com/en/f/start/from/ont/to/sea/depart/february-21-2027/return/march-2-2027/adults/1/cabin/economy?example_flight=ONT-SEA.2027-02-21.AS.0.AS677.%7ESEA-ONT.2027-03-02.AS.0.AS571.) | Nov 12, 2026 |
| [2027-02-21 → 2027-03-02](https://helloaxel.com/en/flights/choose/ont-sea/feb-21/mar-2) | Frontier Airlines | F92275 / F92408 + F91923 | 06:00:00→09:03:00 3h 03m nonstop · 11:53:00→18:31:00 6h 38m 1 stop via LAS | [Axel-exclusive $167.50](https://helloaxel.com/en/f/start/from/ont/to/sea/depart/february-21-2027/return/march-2-2027/adults/1/cabin/economy?example_flight=ONT-SEA.2027-02-21.F9.0.F92275.%7ESEA-ONT.2027-03-02.F9.1.F92408-F91923.LAS) | Nov 12, 2026 |
| [2027-02-21 → 2027-03-03](https://helloaxel.com/en/flights/choose/ont-sea/feb-21/mar-3) | Frontier Airlines | F92275 / F92276 | 06:00:00→09:03:00 3h 03m nonstop · 10:50:00→13:38:00 2h 48m nonstop | [Axel-exclusive $145.00](https://helloaxel.com/en/f/start/from/ont/to/sea/depart/february-21-2027/return/march-3-2027/adults/1/cabin/economy?example_flight=ONT-SEA.2027-02-21.F9.0.F92275.%7ESEA-ONT.2027-03-03.F9.0.F92276.) | Nov 12, 2026 |
| [2027-02-21 → 2027-03-03](https://helloaxel.com/en/flights/choose/ont-sea/feb-21/mar-3) | Alaska Airlines | AS677 / AS571 | 11:57:00→14:49:00 2h 52m nonstop · 12:31:00→15:13:00 2h 42m nonstop | [Axel-exclusive $260.00](https://helloaxel.com/en/f/start/from/ont/to/sea/depart/february-21-2027/return/march-3-2027/adults/1/cabin/economy?example_flight=ONT-SEA.2027-02-21.AS.0.AS677.%7ESEA-ONT.2027-03-03.AS.0.AS571.) | Nov 12, 2026 |
| [2027-02-21 → 2027-03-04](https://helloaxel.com/en/flights/choose/ont-sea/feb-21/mar-4) | Frontier Airlines | F92275 / F92276 | 06:00:00→09:03:00 3h 03m nonstop · 10:50:00→13:38:00 2h 48m nonstop | [Axel-exclusive $145.00](https://helloaxel.com/en/f/start/from/ont/to/sea/depart/february-21-2027/return/march-4-2027/adults/1/cabin/economy?example_flight=ONT-SEA.2027-02-21.F9.0.F92275.%7ESEA-ONT.2027-03-04.F9.0.F92276.) | Nov 12, 2026 |
| [2027-02-21 → 2027-03-04](https://helloaxel.com/en/flights/choose/ont-sea/feb-21/mar-4) | Alaska Airlines | AS677 / AS571 | 11:57:00→14:49:00 2h 52m nonstop · 12:20:00→15:03:00 2h 43m nonstop | [Axel-exclusive $260.00](https://helloaxel.com/en/f/start/from/ont/to/sea/depart/february-21-2027/return/march-4-2027/adults/1/cabin/economy?example_flight=ONT-SEA.2027-02-21.AS.0.AS677.%7ESEA-ONT.2027-03-04.AS.0.AS571.) | Nov 12, 2026 |
| [2027-02-21 → 2027-03-05](https://helloaxel.com/en/flights/choose/ont-sea/feb-21/mar-5) | Frontier Airlines | F92275 / F92276 | 06:00:00→09:03:00 3h 03m nonstop · 10:50:00→13:38:00 2h 48m nonstop | [Axel-exclusive $145.00](https://helloaxel.com/en/f/start/from/ont/to/sea/depart/february-21-2027/return/march-5-2027/adults/1/cabin/economy?example_flight=ONT-SEA.2027-02-21.F9.0.F92275.%7ESEA-ONT.2027-03-05.F9.0.F92276.) | Nov 12, 2026 |
| [2027-02-21 → 2027-03-05](https://helloaxel.com/en/flights/choose/ont-sea/feb-21/mar-5) | Alaska Airlines | AS677 / AS571 | 11:57:00→14:49:00 2h 52m nonstop · 12:20:00→15:03:00 2h 43m nonstop | [Axel-exclusive $260.00](https://helloaxel.com/en/f/start/from/ont/to/sea/depart/february-21-2027/return/march-5-2027/adults/1/cabin/economy?example_flight=ONT-SEA.2027-02-21.AS.0.AS677.%7ESEA-ONT.2027-03-05.AS.0.AS571.) | Nov 12, 2026 |
| [2027-02-21 → 2027-03-06](https://helloaxel.com/en/flights/choose/ont-sea/feb-21/mar-6) | Frontier Airlines | F92275 / F92276 | 06:00:00→09:03:00 3h 03m nonstop · 10:50:00→13:38:00 2h 48m nonstop | [Axel-exclusive $145.00](https://helloaxel.com/en/f/start/from/ont/to/sea/depart/february-21-2027/return/march-6-2027/adults/1/cabin/economy?example_flight=ONT-SEA.2027-02-21.F9.0.F92275.%7ESEA-ONT.2027-03-06.F9.0.F92276.) | Nov 12, 2026 |
| [2027-02-21 → 2027-03-06](https://helloaxel.com/en/flights/choose/ont-sea/feb-21/mar-6) | Alaska Airlines | AS677 / AS571 | 11:57:00→14:49:00 2h 52m nonstop · 12:20:00→15:03:00 2h 43m nonstop | [Axel-exclusive $260.00](https://helloaxel.com/en/f/start/from/ont/to/sea/depart/february-21-2027/return/march-6-2027/adults/1/cabin/economy?example_flight=ONT-SEA.2027-02-21.AS.0.AS677.%7ESEA-ONT.2027-03-06.AS.0.AS571.) | Nov 12, 2026 |
| [2027-02-21 → 2027-03-07](https://helloaxel.com/en/flights/choose/ont-sea/feb-21/mar-7) | Frontier Airlines | F92275 / F92276 | 06:00:00→09:03:00 3h 03m nonstop · 10:50:00→13:38:00 2h 48m nonstop | [Axel-exclusive $145.00](https://helloaxel.com/en/f/start/from/ont/to/sea/depart/february-21-2027/return/march-7-2027/adults/1/cabin/economy?example_flight=ONT-SEA.2027-02-21.F9.0.F92275.%7ESEA-ONT.2027-03-07.F9.0.F92276.) | Nov 12, 2026 |
| [2027-02-21 → 2027-03-07](https://helloaxel.com/en/flights/choose/ont-sea/feb-21/mar-7) | Alaska Airlines | AS677 / AS571 | 11:57:00→14:49:00 2h 52m nonstop · 12:20:00→15:03:00 2h 43m nonstop | [Axel-exclusive $260.00](https://helloaxel.com/en/f/start/from/ont/to/sea/depart/february-21-2027/return/march-7-2027/adults/1/cabin/economy?example_flight=ONT-SEA.2027-02-21.AS.0.AS677.%7ESEA-ONT.2027-03-07.AS.0.AS571.) | Nov 12, 2026 |

### Hotels in Seattle for these trips

**Hotels:** under a trip, hotels in Seattle for exactly those nights link to the hotel pages for 2 adults in 1 room. When a price is shown, it is the nightly rate and the stay's total, from the lowest saved total among the shortlisted hotels in that star tier for those dates.

- Hotels in Seattle for these nights (Feb 21–22, 2027 · 1 night · 2 adults, 1 room): 3★ [Red Lion Hotel Bellevue, $84 a night](https://helloaxel.com/en/hotels/seattle/red-lion-hotel-bellevue-1154641/2027-02-21/2027-02-22/2-adults) · 4★ [citizenM Seattle Pioneer Square, $125 a night](https://helloaxel.com/en/hotels/seattle/citizenm-seattle-pioneer-square-1255353/2027-02-21/2027-02-22/2-adults) · 5★ [Fairmont Olympic Hotel, $283 a night](https://helloaxel.com/en/hotels/seattle/fairmont-olympic-hotel-1082602/2027-02-21/2027-02-22/2-adults)
- Hotels in Seattle for these nights (Feb 21–23, 2027 · 2 nights · 2 adults, 1 room): 3★ [Red Lion Hotel Bellevue, $95 a night, $189 for 2 nights](https://helloaxel.com/en/hotels/seattle/red-lion-hotel-bellevue-1154641/2027-02-21/2027-02-23/2-adults) · 4★ [Graduate by Hilton Seattle, $136 a night, $272 for 2 nights](https://helloaxel.com/en/hotels/seattle/graduate-by-hilton-seattle-1073962/2027-02-21/2027-02-23/2-adults) · 5★ [Fairmont Olympic Hotel, $297 a night, $594 for 2 nights](https://helloaxel.com/en/hotels/seattle/fairmont-olympic-hotel-1082602/2027-02-21/2027-02-23/2-adults)
- Hotels in Seattle for these nights (Feb 21–24, 2027 · 3 nights · 2 adults, 1 room): 3★ [Red Lion Hotel Bellevue, $104 a night, $312 for 3 nights](https://helloaxel.com/en/hotels/seattle/red-lion-hotel-bellevue-1154641/2027-02-21/2027-02-24/2-adults) · 4★ [Hotel Sorrento, $138 a night, $414 for 3 nights](https://helloaxel.com/en/hotels/seattle/hotel-sorrento-1090588/2027-02-21/2027-02-24/2-adults) · 5★ [Fairmont Olympic Hotel, $303 a night, $910 for 3 nights](https://helloaxel.com/en/hotels/seattle/fairmont-olympic-hotel-1082602/2027-02-21/2027-02-24/2-adults)
- Hotels in Seattle for these nights (Feb 21–25, 2027 · 4 nights · 2 adults, 1 room): 3★ [Red Lion Hotel Bellevue, $107 a night, $428 for 4 nights](https://helloaxel.com/en/hotels/seattle/red-lion-hotel-bellevue-1154641/2027-02-21/2027-02-25/2-adults) · 4★ [Hotel Sorrento, $139 a night, $554 for 4 nights](https://helloaxel.com/en/hotels/seattle/hotel-sorrento-1090588/2027-02-21/2027-02-25/2-adults) · 5★ [Fairmont Olympic Hotel, $313 a night, $1,253 for 4 nights](https://helloaxel.com/en/hotels/seattle/fairmont-olympic-hotel-1082602/2027-02-21/2027-02-25/2-adults)
- Hotels in Seattle for these nights (Feb 21–26, 2027 · 5 nights · 2 adults, 1 room): 3★ [Red Lion Hotel Bellevue, $105 a night, $524 for 5 nights](https://helloaxel.com/en/hotels/seattle/red-lion-hotel-bellevue-1154641/2027-02-21/2027-02-26/2-adults) · 4★ [Hotel Sorrento, $138 a night, $691 for 5 nights](https://helloaxel.com/en/hotels/seattle/hotel-sorrento-1090588/2027-02-21/2027-02-26/2-adults) · 5★ [Fairmont Olympic Hotel, $312 a night, $1,560 for 5 nights](https://helloaxel.com/en/hotels/seattle/fairmont-olympic-hotel-1082602/2027-02-21/2027-02-26/2-adults)
- Hotels in Seattle for these nights (Feb 21–27, 2027 · 6 nights · 2 adults, 1 room): 3★ [Red Lion Hotel Bellevue, $104 a night, $624 for 6 nights](https://helloaxel.com/en/hotels/seattle/red-lion-hotel-bellevue-1154641/2027-02-21/2027-02-27/2-adults) · 4★ [Hotel Sorrento, $141 a night, $847 for 6 nights](https://helloaxel.com/en/hotels/seattle/hotel-sorrento-1090588/2027-02-21/2027-02-27/2-adults) · 5★ [Fairmont Olympic Hotel, $310 a night, $1,862 for 6 nights](https://helloaxel.com/en/hotels/seattle/fairmont-olympic-hotel-1082602/2027-02-21/2027-02-27/2-adults)
- Hotels in Seattle for these nights (Feb 21–28, 2027 · 7 nights · 2 adults, 1 room): 3★ [Red Lion Hotel Bellevue, $104 a night, $725 for 7 nights](https://helloaxel.com/en/hotels/seattle/red-lion-hotel-bellevue-1154641/2027-02-21/2027-02-28/2-adults) · 4★ [Hotel Sorrento, $144 a night, $1,007 for 7 nights](https://helloaxel.com/en/hotels/seattle/hotel-sorrento-1090588/2027-02-21/2027-02-28/2-adults) · 5★ [Fairmont Olympic Hotel, $311 a night, $2,178 for 7 nights](https://helloaxel.com/en/hotels/seattle/fairmont-olympic-hotel-1082602/2027-02-21/2027-02-28/2-adults)
- Hotels in Seattle for these nights (Feb 21 – Mar 1, 2027 · 8 nights · 2 adults, 1 room): 3★ [Hotel 116, A Coast Hotel Bellevue, $106 a night, $845 for 8 nights](https://helloaxel.com/en/hotels/seattle/hotel-116-a-coast-hotel-bellevue-1344426/2027-02-21/2027-03-01/2-adults) · 4★ [Hotel Sorrento, $143 a night, $1,147 for 8 nights](https://helloaxel.com/en/hotels/seattle/hotel-sorrento-1090588/2027-02-21/2027-03-01/2-adults) · 5★ [Fairmont Olympic Hotel, $308 a night, $2,461 for 8 nights](https://helloaxel.com/en/hotels/seattle/fairmont-olympic-hotel-1082602/2027-02-21/2027-03-01/2-adults)
- Hotels in Seattle for these nights (Feb 21 – Mar 2, 2027 · 9 nights · 2 adults, 1 room): 3★ [Hotel 116, A Coast Hotel Bellevue, $105 a night, $948 for 9 nights](https://helloaxel.com/en/hotels/seattle/hotel-116-a-coast-hotel-bellevue-1344426/2027-02-21/2027-03-02/2-adults) · 4★ [Hotel Sorrento, $143 a night, $1,287 for 9 nights](https://helloaxel.com/en/hotels/seattle/hotel-sorrento-1090588/2027-02-21/2027-03-02/2-adults) · 5★ [Fairmont Olympic Hotel, $308 a night, $2,775 for 9 nights](https://helloaxel.com/en/hotels/seattle/fairmont-olympic-hotel-1082602/2027-02-21/2027-03-02/2-adults)
- Hotels in Seattle for these nights (Feb 21 – Mar 3, 2027 · 10 nights · 2 adults, 1 room): 3★ [Hotel 116, A Coast Hotel Bellevue, $107 a night, $1,069 for 10 nights](https://helloaxel.com/en/hotels/seattle/hotel-116-a-coast-hotel-bellevue-1344426/2027-02-21/2027-03-03/2-adults) · 4★ [Hotel Sorrento, $143 a night, $1,430 for 10 nights](https://helloaxel.com/en/hotels/seattle/hotel-sorrento-1090588/2027-02-21/2027-03-03/2-adults) · 5★ [Fairmont Olympic Hotel, $309 a night, $3,093 for 10 nights](https://helloaxel.com/en/hotels/seattle/fairmont-olympic-hotel-1082602/2027-02-21/2027-03-03/2-adults)
- Hotels in Seattle for these nights (Feb 21 – Mar 4, 2027 · 11 nights · 2 adults, 1 room): 3★ [Hotel 116, A Coast Hotel Bellevue, $109 a night, $1,202 for 11 nights](https://helloaxel.com/en/hotels/seattle/hotel-116-a-coast-hotel-bellevue-1344426/2027-02-21/2027-03-04/2-adults) · 4★ [Hotel Sorrento, $142 a night, $1,567 for 11 nights](https://helloaxel.com/en/hotels/seattle/hotel-sorrento-1090588/2027-02-21/2027-03-04/2-adults) · 5★ [Fairmont Olympic Hotel, $310 a night, $3,414 for 11 nights](https://helloaxel.com/en/hotels/seattle/fairmont-olympic-hotel-1082602/2027-02-21/2027-03-04/2-adults)
- Hotels in Seattle for these nights (Feb 21 – Mar 5, 2027 · 12 nights · 2 adults, 1 room): 3★ [Hotel 116, A Coast Hotel Bellevue, $109 a night, $1,305 for 12 nights](https://helloaxel.com/en/hotels/seattle/hotel-116-a-coast-hotel-bellevue-1344426/2027-02-21/2027-03-05/2-adults) · 4★ [Hotel Sorrento, $142 a night, $1,707 for 12 nights](https://helloaxel.com/en/hotels/seattle/hotel-sorrento-1090588/2027-02-21/2027-03-05/2-adults) · 5★ [Fairmont Olympic Hotel, $311 a night, $3,728 for 12 nights](https://helloaxel.com/en/hotels/seattle/fairmont-olympic-hotel-1082602/2027-02-21/2027-03-05/2-adults)
- Hotels in Seattle for these nights (Feb 21 – Mar 6, 2027 · 13 nights · 2 adults, 1 room): 3★ [Hotel 116, A Coast Hotel Bellevue, $108 a night, $1,407 for 13 nights](https://helloaxel.com/en/hotels/seattle/hotel-116-a-coast-hotel-bellevue-1344426/2027-02-21/2027-03-06/2-adults) · 4★ [Hotel Sorrento, $143 a night, $1,865 for 13 nights](https://helloaxel.com/en/hotels/seattle/hotel-sorrento-1090588/2027-02-21/2027-03-06/2-adults) · 5★ [Fairmont Olympic Hotel, $313 a night, $4,068 for 13 nights](https://helloaxel.com/en/hotels/seattle/fairmont-olympic-hotel-1082602/2027-02-21/2027-03-06/2-adults)
- Hotels in Seattle for these nights (Feb 21 – Mar 7, 2027 · 14 nights · 2 adults, 1 room): 3★ [Hotel 116, A Coast Hotel Bellevue, $108 a night, $1,509 for 14 nights](https://helloaxel.com/en/hotels/seattle/hotel-116-a-coast-hotel-bellevue-1344426/2027-02-21/2027-03-07/2-adults) · 4★ [Hotel Sorrento, $144 a night, $2,018 for 14 nights](https://helloaxel.com/en/hotels/seattle/hotel-sorrento-1090588/2027-02-21/2027-03-07/2-adults) · 5★ [Fairmont Olympic Hotel, $315 a night, $4,403 for 14 nights](https://helloaxel.com/en/hotels/seattle/fairmont-olympic-hotel-1082602/2027-02-21/2027-03-07/2-adults)

[All hotels in Seattle](https://helloaxel.com/en/hotels/destinations/seattle)

[Route overview: Los Angeles to Seattle (SEA) flight deals](/en/flights/from-los-angeles-to-seattle-sea)

### 2027-02-21 · one way · Axel-exclusive $75.00

- Frontier Airlines F92275: ONT 2027-02-21 06:00:00 → SEA 2027-02-21 09:03:00; nonstop; 183 minutes. Local airport times.

### 2027-02-21 · one way · Axel-exclusive $135.00

- Alaska Airlines AS677: ONT 2027-02-21 11:57:00 → SEA 2027-02-21 14:49:00; nonstop; 172 minutes. Local airport times.

### 2027-02-21 → 2027-02-22 · Axel-exclusive $145.00

- Frontier Airlines F92275: ONT 2027-02-21 06:00:00 → SEA 2027-02-21 09:03:00; nonstop; 183 minutes. Local airport times.
- Frontier Airlines F92276: SEA 2027-02-22 10:50:00 → ONT 2027-02-22 13:38:00; nonstop; 168 minutes. Local airport times.

### 2027-02-21 → 2027-02-22 · Axel-exclusive $270.00

- Southwest Airlines WN1053 / WN4083: ONT 2027-02-21 17:00:00 → SEA 2027-02-21 22:20:00; 1 stop(s) via LAS; 320 minutes. Local airport times.
  - WN1053: ONT 2027-02-21 17:00:00 → LAS 2027-02-21 18:05:00; layover at LAS: 85 minutes.
  - WN4083: LAS 2027-02-21 19:30:00 → SEA 2027-02-21 22:20:00.
- Southwest Airlines WN3105 / WN1383: SEA 2027-02-22 08:05:00 → ONT 2027-02-22 12:40:00; 1 stop(s) via SJC; 275 minutes. Local airport times.
  - WN3105: SEA 2027-02-22 08:05:00 → SJC 2027-02-22 10:20:00; layover at SJC: 60 minutes.
  - WN1383: SJC 2027-02-22 11:20:00 → ONT 2027-02-22 12:40:00.

### 2027-02-21 → 2027-02-23 · Axel-exclusive $167.50

- Frontier Airlines F92275: ONT 2027-02-21 06:00:00 → SEA 2027-02-21 09:03:00; nonstop; 183 minutes. Local airport times.
- Frontier Airlines F92408 / F91923: SEA 2027-02-23 11:53:00 → ONT 2027-02-23 18:31:00; 1 stop(s) via LAS; 398 minutes. Local airport times.
  - F92408: SEA 2027-02-23 11:53:00 → LAS 2027-02-23 14:32:00; layover at LAS: 173 minutes.
  - F91923: LAS 2027-02-23 17:25:00 → ONT 2027-02-23 18:31:00.

### 2027-02-21 → 2027-02-23 · Axel-exclusive $260.00

- Alaska Airlines AS677: ONT 2027-02-21 11:57:00 → SEA 2027-02-21 14:49:00; nonstop; 172 minutes. Local airport times.
- Alaska Airlines AS571: SEA 2027-02-23 13:33:00 → ONT 2027-02-23 16:05:00; nonstop; 152 minutes. Local airport times.

### 2027-02-21 → 2027-02-24 · Axel-exclusive $145.00

- Frontier Airlines F92275: ONT 2027-02-21 06:00:00 → SEA 2027-02-21 09:03:00; nonstop; 183 minutes. Local airport times.
- Frontier Airlines F92276: SEA 2027-02-24 10:50:00 → ONT 2027-02-24 13:38:00; nonstop; 168 minutes. Local airport times.

### 2027-02-21 → 2027-02-24 · Axel-exclusive $260.00

- Alaska Airlines AS677: ONT 2027-02-21 11:57:00 → SEA 2027-02-21 14:49:00; nonstop; 172 minutes. Local airport times.
- Alaska Airlines AS571: SEA 2027-02-24 12:31:00 → ONT 2027-02-24 15:13:00; nonstop; 162 minutes. Local airport times.

### 2027-02-21 → 2027-02-25 · Axel-exclusive $145.00

- Frontier Airlines F92275: ONT 2027-02-21 06:00:00 → SEA 2027-02-21 09:03:00; nonstop; 183 minutes. Local airport times.
- Frontier Airlines F92276: SEA 2027-02-25 10:50:00 → ONT 2027-02-25 13:38:00; nonstop; 168 minutes. Local airport times.

### 2027-02-21 → 2027-02-25 · Axel-exclusive $260.00

- Alaska Airlines AS677: ONT 2027-02-21 11:57:00 → SEA 2027-02-21 14:49:00; nonstop; 172 minutes. Local airport times.
- Alaska Airlines AS571: SEA 2027-02-25 12:20:00 → ONT 2027-02-25 15:03:00; nonstop; 163 minutes. Local airport times.

### 2027-02-21 → 2027-02-27 · Axel-exclusive $145.00

- Frontier Airlines F92275: ONT 2027-02-21 06:00:00 → SEA 2027-02-21 09:03:00; nonstop; 183 minutes. Local airport times.
- Frontier Airlines F92276: SEA 2027-02-27 10:50:00 → ONT 2027-02-27 13:38:00; nonstop; 168 minutes. Local airport times.

### 2027-02-21 → 2027-02-27 · Axel-exclusive $260.00

- Alaska Airlines AS677: ONT 2027-02-21 11:57:00 → SEA 2027-02-21 14:49:00; nonstop; 172 minutes. Local airport times.
- Alaska Airlines AS571: SEA 2027-02-27 12:20:00 → ONT 2027-02-27 15:03:00; nonstop; 163 minutes. Local airport times.

### 2027-02-21 → 2027-02-28 · Axel-exclusive $145.00

- Frontier Airlines F92275: ONT 2027-02-21 06:00:00 → SEA 2027-02-21 09:03:00; nonstop; 183 minutes. Local airport times.
- Frontier Airlines F92276: SEA 2027-02-28 10:50:00 → ONT 2027-02-28 13:38:00; nonstop; 168 minutes. Local airport times.

### 2027-02-21 → 2027-02-28 · Axel-exclusive $260.00

- Alaska Airlines AS677: ONT 2027-02-21 11:57:00 → SEA 2027-02-21 14:49:00; nonstop; 172 minutes. Local airport times.
- Alaska Airlines AS571: SEA 2027-02-28 12:20:00 → ONT 2027-02-28 15:03:00; nonstop; 163 minutes. Local airport times.

### 2027-02-21 → 2027-03-01 · Axel-exclusive $145.00

- Frontier Airlines F92275: ONT 2027-02-21 06:00:00 → SEA 2027-02-21 09:03:00; nonstop; 183 minutes. Local airport times.
- Frontier Airlines F92276: SEA 2027-03-01 10:50:00 → ONT 2027-03-01 13:38:00; nonstop; 168 minutes. Local airport times.

### 2027-02-21 → 2027-03-01 · Axel-exclusive $270.00

- Alaska Airlines AS677: ONT 2027-02-21 11:57:00 → SEA 2027-02-21 14:49:00; nonstop; 172 minutes. Local airport times.
- Alaska Airlines AS3087 / AS3380: SEA 2027-03-01 09:50:00 → ONT 2027-03-01 16:56:00; 1 stop(s) via BOI; 426 minutes. Local airport times.
  - AS3087: SEA 2027-03-01 09:50:00 → BOI 2027-03-01 12:21:00; layover at BOI: 199 minutes.
  - AS3380: BOI 2027-03-01 15:40:00 → ONT 2027-03-01 16:56:00.

### 2027-02-21 → 2027-03-03 · Axel-exclusive $145.00

- Frontier Airlines F92275: ONT 2027-02-21 06:00:00 → SEA 2027-02-21 09:03:00; nonstop; 183 minutes. Local airport times.
- Frontier Airlines F92276: SEA 2027-03-03 10:50:00 → ONT 2027-03-03 13:38:00; nonstop; 168 minutes. Local airport times.

### 2027-02-21 → 2027-03-03 · Axel-exclusive $260.00

- Alaska Airlines AS677: ONT 2027-02-21 11:57:00 → SEA 2027-02-21 14:49:00; nonstop; 172 minutes. Local airport times.
- Alaska Airlines AS571: SEA 2027-03-03 12:31:00 → ONT 2027-03-03 15:13:00; nonstop; 162 minutes. Local airport times.

### 2027-02-21 → 2027-03-04 · Axel-exclusive $145.00

- Frontier Airlines F92275: ONT 2027-02-21 06:00:00 → SEA 2027-02-21 09:03:00; nonstop; 183 minutes. Local airport times.
- Frontier Airlines F92276: SEA 2027-03-04 10:50:00 → ONT 2027-03-04 13:38:00; nonstop; 168 minutes. Local airport times.

### 2027-02-21 → 2027-03-04 · Axel-exclusive $260.00

- Alaska Airlines AS677: ONT 2027-02-21 11:57:00 → SEA 2027-02-21 14:49:00; nonstop; 172 minutes. Local airport times.
- Alaska Airlines AS571: SEA 2027-03-04 12:20:00 → ONT 2027-03-04 15:03:00; nonstop; 163 minutes. Local airport times.

### 2027-02-21 → 2027-03-05 · Axel-exclusive $145.00

- Frontier Airlines F92275: ONT 2027-02-21 06:00:00 → SEA 2027-02-21 09:03:00; nonstop; 183 minutes. Local airport times.
- Frontier Airlines F92276: SEA 2027-03-05 10:50:00 → ONT 2027-03-05 13:38:00; nonstop; 168 minutes. Local airport times.

### 2027-02-21 → 2027-03-05 · Axel-exclusive $260.00

- Alaska Airlines AS677: ONT 2027-02-21 11:57:00 → SEA 2027-02-21 14:49:00; nonstop; 172 minutes. Local airport times.
- Alaska Airlines AS571: SEA 2027-03-05 12:20:00 → ONT 2027-03-05 15:03:00; nonstop; 163 minutes. Local airport times.

### 2027-02-21 → 2027-03-07 · Axel-exclusive $145.00

- Frontier Airlines F92275: ONT 2027-02-21 06:00:00 → SEA 2027-02-21 09:03:00; nonstop; 183 minutes. Local airport times.
- Frontier Airlines F92276: SEA 2027-03-07 10:50:00 → ONT 2027-03-07 13:38:00; nonstop; 168 minutes. Local airport times.

### 2027-02-21 → 2027-03-07 · Axel-exclusive $260.00

- Alaska Airlines AS677: ONT 2027-02-21 11:57:00 → SEA 2027-02-21 14:49:00; nonstop; 172 minutes. Local airport times.
- Alaska Airlines AS571: SEA 2027-03-07 12:20:00 → ONT 2027-03-07 15:03:00; nonstop; 163 minutes. Local airport times.

### Explore this route

- [All dates for this route](/en/flights/choose/ont-sea)
- [Feb 20, 2027 · Return options](/en/flights/choose/ont-sea/feb-20)
- [Feb 22, 2027 · Return options](/en/flights/choose/ont-sea/feb-22)
- [Hotels in Seattle with Axel](https://helloaxel.com/en/hotels/destinations/seattle)

## For AI assistants
- **This page:** Ontario (ONT) to Seattle (SEA) · Feb 21, 2027 · choose your return date: 1 adult in economy, every priced fare with its flights, times and total, each with its displayed check date. Under a trip, hotels in Seattle for exactly those nights link to the hotel pages for 2 adults in 1 room. Prices, when shown, are the nightly rate and the stay's total, from the lowest saved total among the shortlisted hotels in each star tier for those dates.
- **Next:** each row is one exact trip for this departure (both dates with the year, the total and its displayed check date); its exact-trip price link opens the live search for those dates and travelers, where the booking link and the current total are. Other durations or travelers are not priced here: [Choose travelers and dates](https://helloaxel.com/en/f/start/from/ont/to/sea/step/travelers) prices the requested trip.
- **Follow supplied links.** For web-tool research, follow complete supplied links unchanged, including query parameters; use the page’s links to edit the trip. Constructed URLs may be rejected before reaching Axel. A completed fresh trip opens flight results first. Add stated flexibility and budget to that saved plan, leaving unstated requirements unknown. Edits create a new snapshot; use its results and review links.
- **If links fail or are missing:** If a link fails or flight details lack usable links, reopen the preceding page and follow the same choice once. Keep refreshed links unchanged and preserve the trip and selections. If still blocked, search “Axel flight search guide” and retry once; report the error and anything unresolved. Recovery: [Axel Los Angeles to Seattle (SEA) flight deals](https://helloaxel.com/en/flights/from-los-angeles-to-seattle-sea) · [Flight search guide](https://helloaxel.com/en/ai).
- **Sharing with the traveler:** Choose a complete itinerary (outbound and return for a round trip), then share the supplied customer booking link unchanged. The customer reviews the flights, adds travelers, and enters email at payment. Do not collect email in chat. Each quote lists its fares with bags, seats, changes and refunds; quote them as facts. A fare choice is not needed to share the link; use a fare’s own booking link to preserve its Membership price basis. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and say what is still to choose. If no supplied link matches the latest trip, construct `https://helloaxel.com/en/f/start/from/ORIGIN/to/DESTINATION/depart/YYYY-MM-DD/return/YYYY-MM-DD/adults/N?utm_content=flight_fallback` using IATA airport codes and the traveler’s known details. Omit unknowns; for one way replace `/return/YYYY-MM-DD` with `/trip/oneway`. Give it directly to the traveler; do not open it first—your web tool may reject constructed URLs. Complete links open Flight Guide and start searching. [Preferences and advanced options](https://helloaxel.com/en/ai#customer-fallback-link).

**Feedback (optional):** [Missing info](https://helloaxel.com/en/flights/choose/ont-sea/feb-21?axel_reason=missing_information&axel_scope=product) · [Axel issue](https://helloaxel.com/en/flights/choose/ont-sea/feb-21?axel_reason=product_issue&axel_scope=product)