Ontario (ONT) to Seattle (SEA), Jan 21, 2027 – Feb 3, 2027: from $141 round trip
Ontario (ONT) to Seattle (SEA), Jan 21, 2027 – Feb 3, 2027: from $141 round trip on Axel, checked Nov 11, 2026. Lowest published fare: $141 round trip, Axel-exclusive, Frontier Airlines, nonstop, Jan 21, 2027 – Feb 3, 2027, 1 adult, economy, checked Nov 11, 2026. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.
See flights for these dates: each price link opens AI flight search for that row's exact dates and travelers. Select the complete itinerary there.
| Exact travel dates | Airline | Flights | Times, duration, stops | Total price | Price checked |
|---|---|---|---|---|---|
| 2027-01-21 → 2027-02-03 | Frontier Airlines | F92275 / F92276 | 06:00:00→09:03:00 3h 03m nonstop · 10:50:00→13:38:00 2h 48m nonstop | Axel-exclusive $141.38 | Nov 11, 2026 |
| 2027-01-21 → 2027-02-03 | Alaska Airlines | AS677 / AS571 | 11:57:00→14:49:00 2h 52m nonstop · 12:31:00→15:13:00 2h 42m nonstop | Axel-exclusive $253.50 | Nov 11, 2026 |
| 2027-01-21 → 2027-02-03 | Delta Air Lines | DL4070 / DL4070 | 11:57:00→14:56:00 2h 59m nonstop · 08:25:00→11:17:00 2h 52m nonstop | Axel-exclusive $263.25 | Nov 11, 2026 |
| 2027-01-21 → 2027-02-03 | Southwest Airlines | WN3326 + WN1586 / WN3105 + WN1383 | 13:30:00→18:40:00 5h 10m 1 stop via SMF · 08:05:00→12:40:00 4h 35m 1 stop via SJC | Axel-exclusive $263.25 | Nov 11, 2026 |
| 2027-01-21 → 2027-02-03 | Alaska Airlines | AS575 / AS571 | 12:02:00→14:49:00 2h 47m nonstop · 12:31:00→15:13:00 2h 42m nonstop | Axel-exclusive $253.50 | Nov 11, 2026 |
| 2027-01-21 → 2027-02-03 | Delta Air Lines | DL4031 / DL4070 | 17:38:00→20:43:00 3h 05m nonstop · 08:25:00→11:17:00 2h 52m nonstop | Axel-exclusive $263.25 | Nov 11, 2026 |
| 2027-01-21 → 2027-02-03 | Alaska Airlines | AS3380 + AS2016 / AS571 | 17:36:00→22:28:00 4h 52m 1 stop via BOI · 12:31:00→15:13:00 2h 42m nonstop | Axel-exclusive $263.00 | Nov 11, 2026 |
| 2027-01-21 → 2027-02-03 | Southwest Airlines | WN3313 + WN4608 / WN3105 + WN1383 | 16:05:00→21:40:00 5h 35m 1 stop via OAK · 08:05:00→12:40:00 4h 35m 1 stop via SJC | Axel-exclusive $263.25 | Nov 11, 2026 |
| 2027-01-21 → 2027-02-03 | 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 $263.25 | Nov 11, 2026 |
| 2027-01-21 → 2027-02-03 | Delta Air Lines | DL2708 + DL2995 / DL4070 | 06:00:00→12:36:00 6h 36m 1 stop via SLC · 08:25:00→11:17:00 2h 52m nonstop | Axel-exclusive $272.75 | Nov 11, 2026 |
| 2027-01-21 → 2027-02-03 | Delta Air Lines | DL4031 / DL1016 + DL3879 | 17:55:00→21:00:00 3h 05m nonstop · 09:18:00→16:22:00 7h 04m 1 stop via SLC | Axel-exclusive $273.25 | Nov 11, 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 (Jan 21 – Feb 3, 2027 · 13 nights · 2 adults, 1 room): 3★ Red Lion Hotel Bellevue, $104 a night, $1,351 for 13 nights · 4★ citizenM Seattle Pioneer Square, $123 a night, $1,594 for 13 nights · 5★ Fairmont Olympic Hotel, $315 a night, $4,100 for 13 nights
Route overview: Los Angeles to Seattle (SEA) flight deals
2027-01-21 → 2027-02-03 · Axel-exclusive $141.38
- Frontier Airlines F92275: ONT 2027-01-21 06:00:00 → SEA 2027-01-21 09:03:00; nonstop; 183 minutes. Local airport times.
- Frontier Airlines F92276: SEA 2027-02-03 10:50:00 → ONT 2027-02-03 13:38:00; nonstop; 168 minutes. Local airport times.
2027-01-21 → 2027-02-03 · Axel-exclusive $253.50
- Alaska Airlines AS677: ONT 2027-01-21 11:57:00 → SEA 2027-01-21 14:49:00; nonstop; 172 minutes. Local airport times.
- Alaska Airlines AS571: SEA 2027-02-03 12:31:00 → ONT 2027-02-03 15:13:00; nonstop; 162 minutes. Local airport times.
2027-01-21 → 2027-02-03 · Axel-exclusive $263.25
- Delta Air Lines DL4070: ONT 2027-01-21 11:57:00 → SEA 2027-01-21 14:56:00; nonstop; 179 minutes. Local airport times.
- Delta Air Lines DL4070: SEA 2027-02-03 08:25:00 → ONT 2027-02-03 11:17:00; nonstop; 172 minutes. Local airport times.
2027-01-21 → 2027-02-03 · Axel-exclusive $263.25
- Southwest Airlines WN3326 / WN1586: ONT 2027-01-21 13:30:00 → SEA 2027-01-21 18:40:00; 1 stop(s) via SMF; 310 minutes. Local airport times.
- WN3326: ONT 2027-01-21 13:30:00 → SMF 2027-01-21 14:55:00; layover at SMF: 105 minutes.
- WN1586: SMF 2027-01-21 16:40:00 → SEA 2027-01-21 18:40:00.
- Southwest Airlines WN3105 / WN1383: SEA 2027-02-03 08:05:00 → ONT 2027-02-03 12:40:00; 1 stop(s) via SJC; 275 minutes. Local airport times.
- WN3105: SEA 2027-02-03 08:05:00 → SJC 2027-02-03 10:20:00; layover at SJC: 60 minutes.
- WN1383: SJC 2027-02-03 11:20:00 → ONT 2027-02-03 12:40:00.
2027-01-21 → 2027-02-03 · Axel-exclusive $253.50
- Alaska Airlines AS575: ONT 2027-01-21 12:02:00 → SEA 2027-01-21 14:49:00; nonstop; 167 minutes. Local airport times.
- Alaska Airlines AS571: SEA 2027-02-03 12:31:00 → ONT 2027-02-03 15:13:00; nonstop; 162 minutes. Local airport times.
2027-01-21 → 2027-02-03 · Axel-exclusive $263.25
- Delta Air Lines DL4031: ONT 2027-01-21 17:38:00 → SEA 2027-01-21 20:43:00; nonstop; 185 minutes. Local airport times.
- Delta Air Lines DL4070: SEA 2027-02-03 08:25:00 → ONT 2027-02-03 11:17:00; nonstop; 172 minutes. Local airport times.
2027-01-21 → 2027-02-03 · Axel-exclusive $263.00
- Alaska Airlines AS3380 / AS2016: ONT 2027-01-21 17:36:00 → SEA 2027-01-21 22:28:00; 1 stop(s) via BOI; 292 minutes. Local airport times.
- AS3380: ONT 2027-01-21 17:36:00 → BOI 2027-01-21 20:41:00; layover at BOI: 66 minutes.
- AS2016: BOI 2027-01-21 21:47:00 → SEA 2027-01-21 22:28:00.
- Alaska Airlines AS571: SEA 2027-02-03 12:31:00 → ONT 2027-02-03 15:13:00; nonstop; 162 minutes. Local airport times.
2027-01-21 → 2027-02-03 · Axel-exclusive $263.25
- Southwest Airlines WN3313 / WN4608: ONT 2027-01-21 16:05:00 → SEA 2027-01-21 21:40:00; 1 stop(s) via OAK; 335 minutes. Local airport times.
- WN3313: ONT 2027-01-21 16:05:00 → OAK 2027-01-21 17:30:00; layover at OAK: 110 minutes.
- WN4608: OAK 2027-01-21 19:20:00 → SEA 2027-01-21 21:40:00.
- Southwest Airlines WN3105 / WN1383: SEA 2027-02-03 08:05:00 → ONT 2027-02-03 12:40:00; 1 stop(s) via SJC; 275 minutes. Local airport times.
- WN3105: SEA 2027-02-03 08:05:00 → SJC 2027-02-03 10:20:00; layover at SJC: 60 minutes.
- WN1383: SJC 2027-02-03 11:20:00 → ONT 2027-02-03 12:40:00.
2027-01-21 → 2027-02-03 · Axel-exclusive $263.25
- Southwest Airlines WN1053 / WN4083: ONT 2027-01-21 17:00:00 → SEA 2027-01-21 22:20:00; 1 stop(s) via LAS; 320 minutes. Local airport times.
- WN1053: ONT 2027-01-21 17:00:00 → LAS 2027-01-21 18:05:00; layover at LAS: 85 minutes.
- WN4083: LAS 2027-01-21 19:30:00 → SEA 2027-01-21 22:20:00.
- Southwest Airlines WN3105 / WN1383: SEA 2027-02-03 08:05:00 → ONT 2027-02-03 12:40:00; 1 stop(s) via SJC; 275 minutes. Local airport times.
- WN3105: SEA 2027-02-03 08:05:00 → SJC 2027-02-03 10:20:00; layover at SJC: 60 minutes.
- WN1383: SJC 2027-02-03 11:20:00 → ONT 2027-02-03 12:40:00.
2027-01-21 → 2027-02-03 · Axel-exclusive $272.75
- Delta Air Lines DL2708 / DL2995: ONT 2027-01-21 06:00:00 → SEA 2027-01-21 12:36:00; 1 stop(s) via SLC; 396 minutes. Local airport times.
- DL2708: ONT 2027-01-21 06:00:00 → SLC 2027-01-21 08:49:00; layover at SLC: 146 minutes.
- DL2995: SLC 2027-01-21 11:15:00 → SEA 2027-01-21 12:36:00.
- Delta Air Lines DL4070: SEA 2027-02-03 08:25:00 → ONT 2027-02-03 11:17:00; nonstop; 172 minutes. Local airport times.
2027-01-21 → 2027-02-03 · Axel-exclusive $273.25
- Delta Air Lines DL4031: ONT 2027-01-21 17:55:00 → SEA 2027-01-21 21:00:00; nonstop; 185 minutes. Local airport times.
- Delta Air Lines DL1016 / DL3879: SEA 2027-02-03 09:18:00 → ONT 2027-02-03 16:22:00; 1 stop(s) via SLC; 424 minutes. Local airport times.
- DL1016: SEA 2027-02-03 09:18:00 → SLC 2027-02-03 12:31:00; layover at SLC: 178 minutes.
- DL3879: SLC 2027-02-03 15:29:00 → ONT 2027-02-03 16:22:00.
Travelers: prices on this page are totals for 1 adult. For a different party, open this trip for 2 adults · 3 adults · 4 adults · 2 adults + 1 child · 2 adults + 2 children; each link opens AI flight search for these dates and those travelers, and the customer link to share comes from those results.
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- All dates for this route
- Jan 20, 2027 · Return options
- Jan 22, 2027 · Return options
- Hotels in Seattle with Axel
For AI assistants
- This page: Ontario (ONT) to Seattle (SEA) · Jan 21, 2027 · return Feb 3, 2027: 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.
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