Ontario (ONT) to Seattle (SEA) · Jan 27, 2027 · return Feb 10, 2027
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 | Total price | Price issued (UTC) |
|---|---|---|---|---|
| 2027-01-27 → 2027-02-10 | Frontier Airlines | F92275 / F92276 | Axel-exclusive $141.38 | 2026-10-29T01:52:37Z |
| 2027-01-27 → 2027-02-10 | Alaska Airlines | AS677 / AS571 | Axel-exclusive $253.50 | 2026-10-29T01:52:37Z |
| 2027-01-27 → 2027-02-10 | Delta Air Lines | DL4070 / DL4070 | Axel-exclusive $263.25 | 2026-10-29T01:52:37Z |
| 2027-01-27 → 2027-02-10 | Southwest Airlines | WN3313 + WN4608 / WN3105 + WN1383 | Axel-exclusive $263.25 | 2026-10-29T01:52:37Z |
| 2027-01-27 → 2027-02-10 | United Airlines | UA2363 + UA2192 / UA2478 + UA552 | Axel-exclusive $282.75 | 2026-10-29T01:52:37Z |
| 2027-01-27 → 2027-02-10 | Alaska Airlines | AS575 / AS571 | Axel-exclusive $253.50 | 2026-10-29T01:52:37Z |
| 2027-01-27 → 2027-02-10 | Delta Air Lines | DL4031 / DL4070 | Axel-exclusive $263.25 | 2026-10-29T01:52:37Z |
| 2027-01-27 → 2027-02-10 | Alaska Airlines | AS3380 + AS2016 / AS571 | Axel-exclusive $263.00 | 2026-10-29T01:52:37Z |
| 2027-01-27 → 2027-02-10 | Southwest Airlines | WN1053 + WN4083 / WN3105 + WN1383 | Axel-exclusive $263.25 | 2026-10-29T01:52:37Z |
| 2027-01-27 → 2027-02-10 | Southwest Airlines | WN3326 + WN1586 / WN3105 + WN1383 | Axel-exclusive $263.25 | 2026-10-29T01:52:37Z |
| 2027-01-27 → 2027-02-10 | Delta Air Lines | DL4031 / DL1016 + DL3879 | Axel-exclusive $273.25 | 2026-10-29T01:52:37Z |
Route overview: Los Angeles to Seattle (SEA) flight deals
2027-01-27 → 2027-02-10 · Axel-exclusive $141.38
- Frontier Airlines F92275: ONT 2027-01-27 06:00:00 → SEA 2027-01-27 09:03:00; nonstop; 183 minutes. Local airport times.
- Frontier Airlines F92276: SEA 2027-02-10 10:50:00 → ONT 2027-02-10 13:38:00; nonstop; 168 minutes. Local airport times.
2027-01-27 → 2027-02-10 · Axel-exclusive $253.50
- Alaska Airlines AS677: ONT 2027-01-27 11:57:00 → SEA 2027-01-27 14:49:00; nonstop; 172 minutes. Local airport times.
- Alaska Airlines AS571: SEA 2027-02-10 12:31:00 → ONT 2027-02-10 15:13:00; nonstop; 162 minutes. Local airport times.
2027-01-27 → 2027-02-10 · Axel-exclusive $263.25
- Delta Air Lines DL4070: ONT 2027-01-27 11:57:00 → SEA 2027-01-27 14:56:00; nonstop; 179 minutes. Local airport times.
- Delta Air Lines DL4070: SEA 2027-02-10 08:25:00 → ONT 2027-02-10 11:17:00; nonstop; 172 minutes. Local airport times.
2027-01-27 → 2027-02-10 · Axel-exclusive $263.25
- Southwest Airlines WN3313 / WN4608: ONT 2027-01-27 16:05:00 → SEA 2027-01-27 21:40:00; 1 stop(s) via OAK; 335 minutes. Local airport times.
- WN3313: ONT 2027-01-27 16:05:00 → OAK 2027-01-27 17:30:00; layover at OAK: 110 minutes.
- WN4608: OAK 2027-01-27 19:20:00 → SEA 2027-01-27 21:40:00.
- Southwest Airlines WN3105 / WN1383: SEA 2027-02-10 08:05:00 → ONT 2027-02-10 12:40:00; 1 stop(s) via SJC; 275 minutes. Local airport times.
- WN3105: SEA 2027-02-10 08:05:00 → SJC 2027-02-10 10:20:00; layover at SJC: 60 minutes.
- WN1383: SJC 2027-02-10 11:20:00 → ONT 2027-02-10 12:40:00.
2027-01-27 → 2027-02-10 · Axel-exclusive $282.75
- United Airlines UA2363 / UA2192: ONT 2027-01-27 06:00:00 → SEA 2027-01-27 12:18:00; 1 stop(s) via SFO; 378 minutes. Local airport times.
- UA2363: ONT 2027-01-27 06:00:00 → SFO 2027-01-27 07:30:00; layover at SFO: 155 minutes.
- UA2192: SFO 2027-01-27 10:05:00 → SEA 2027-01-27 12:18:00.
- United Airlines UA2478 / UA552: SEA 2027-02-10 15:24:00 → ONT 2027-02-10 22:53:00; 1 stop(s) via SFO; 449 minutes. Local airport times.
- UA2478: SEA 2027-02-10 15:24:00 → SFO 2027-02-10 17:45:00; layover at SFO: 225 minutes.
- UA552: SFO 2027-02-10 21:30:00 → ONT 2027-02-10 22:53:00.
2027-01-27 → 2027-02-10 · Axel-exclusive $253.50
- Alaska Airlines AS575: ONT 2027-01-27 12:02:00 → SEA 2027-01-27 14:49:00; nonstop; 167 minutes. Local airport times.
- Alaska Airlines AS571: SEA 2027-02-10 12:31:00 → ONT 2027-02-10 15:13:00; nonstop; 162 minutes. Local airport times.
2027-01-27 → 2027-02-10 · Axel-exclusive $263.25
- Delta Air Lines DL4031: ONT 2027-01-27 17:38:00 → SEA 2027-01-27 20:43:00; nonstop; 185 minutes. Local airport times.
- Delta Air Lines DL4070: SEA 2027-02-10 08:25:00 → ONT 2027-02-10 11:17:00; nonstop; 172 minutes. Local airport times.
2027-01-27 → 2027-02-10 · Axel-exclusive $263.00
- Alaska Airlines AS3380 / AS2016: ONT 2027-01-27 17:36:00 → SEA 2027-01-27 22:28:00; 1 stop(s) via BOI; 292 minutes. Local airport times.
- AS3380: ONT 2027-01-27 17:36:00 → BOI 2027-01-27 20:41:00; layover at BOI: 66 minutes.
- AS2016: BOI 2027-01-27 21:47:00 → SEA 2027-01-27 22:28:00.
- Alaska Airlines AS571: SEA 2027-02-10 12:31:00 → ONT 2027-02-10 15:13:00; nonstop; 162 minutes. Local airport times.
2027-01-27 → 2027-02-10 · Axel-exclusive $263.25
- Southwest Airlines WN1053 / WN4083: ONT 2027-01-27 17:00:00 → SEA 2027-01-27 22:20:00; 1 stop(s) via LAS; 320 minutes. Local airport times.
- WN1053: ONT 2027-01-27 17:00:00 → LAS 2027-01-27 18:05:00; layover at LAS: 85 minutes.
- WN4083: LAS 2027-01-27 19:30:00 → SEA 2027-01-27 22:20:00.
- Southwest Airlines WN3105 / WN1383: SEA 2027-02-10 08:05:00 → ONT 2027-02-10 12:40:00; 1 stop(s) via SJC; 275 minutes. Local airport times.
- WN3105: SEA 2027-02-10 08:05:00 → SJC 2027-02-10 10:20:00; layover at SJC: 60 minutes.
- WN1383: SJC 2027-02-10 11:20:00 → ONT 2027-02-10 12:40:00.
2027-01-27 → 2027-02-10 · Axel-exclusive $263.25
- Southwest Airlines WN3326 / WN1586: ONT 2027-01-27 13:30:00 → SEA 2027-01-27 18:40:00; 1 stop(s) via SMF; 310 minutes. Local airport times.
- WN3326: ONT 2027-01-27 13:30:00 → SMF 2027-01-27 14:55:00; layover at SMF: 105 minutes.
- WN1586: SMF 2027-01-27 16:40:00 → SEA 2027-01-27 18:40:00.
- Southwest Airlines WN3105 / WN1383: SEA 2027-02-10 08:05:00 → ONT 2027-02-10 12:40:00; 1 stop(s) via SJC; 275 minutes. Local airport times.
- WN3105: SEA 2027-02-10 08:05:00 → SJC 2027-02-10 10:20:00; layover at SJC: 60 minutes.
- WN1383: SJC 2027-02-10 11:20:00 → ONT 2027-02-10 12:40:00.
2027-01-27 → 2027-02-10 · Axel-exclusive $273.25
- Delta Air Lines DL4031: ONT 2027-01-27 17:55:00 → SEA 2027-01-27 21:00:00; nonstop; 185 minutes. Local airport times.
- Delta Air Lines DL1016 / DL3879: SEA 2027-02-10 09:18:00 → ONT 2027-02-10 16:22:00; 1 stop(s) via SLC; 424 minutes. Local airport times.
- DL1016: SEA 2027-02-10 09:18:00 → SLC 2027-02-10 12:31:00; layover at SLC: 178 minutes.
- DL3879: SLC 2027-02-10 15:29:00 → ONT 2027-02-10 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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