Ontario (ONT) to Seattle (SEA), Mar 2, 2027: round trips from $260, one way from $135

Ontario (ONT) to Seattle (SEA), Mar 2, 2027: round trips from $260, one way from $135 on Axel, checked Nov 12, 2026. Lowest published fares: $260 round trip, Axel-exclusive, Alaska Airlines, nonstop, Mar 2–3, 2027; $135 one way, Axel-exclusive, Alaska Airlines, nonstop, Mar 2, 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.

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 (Mar 2–3, 2027 · 1 night · 2 adults, 1 room): 3★ Hotel Max, $118 a night · 4★ citizenM Seattle Pioneer Square, $127 a night · 5★ Fairmont Olympic Hotel, $318 a night
• Hotels in Seattle for these nights (Mar 2–4, 2027 · 2 nights · 2 adults, 1 room): 3★ Hotel Max, $118 a night, $236 for 2 nights · 4★ citizenM Seattle Pioneer Square, $132 a night, $264 for 2 nights · 5★ Fairmont Olympic Hotel, $320 a night, $639 for 2 nights
• Hotels in Seattle for these nights (Mar 2–5, 2027 · 3 nights · 2 adults, 1 room): 3★ Hotel 116, A Coast Hotel Bellevue, $119 a night, $357 for 3 nights · 4★ citizenM Seattle Pioneer Square, $128 a night, $385 for 3 nights · 5★ Fairmont Olympic Hotel, $318 a night, $953 for 3 nights
• Hotels in Seattle for these nights (Mar 2–6, 2027 · 4 nights · 2 adults, 1 room): 3★ Hotel 116, A Coast Hotel Bellevue, $115 a night, $459 for 4 nights · 4★ citizenM Seattle Pioneer Square, $134 a night, $537 for 4 nights · 5★ Fairmont Olympic Hotel, $323 a night, $1,293 for 4 nights
• Hotels in Seattle for these nights (Mar 2–7, 2027 · 5 nights · 2 adults, 1 room): 3★ Hotel 116, A Coast Hotel Bellevue, $112 a night, $561 for 5 nights · 4★ citizenM Seattle Pioneer Square, $137 a night, $685 for 5 nights · 5★ Fairmont Olympic Hotel, $326 a night, $1,628 for 5 nights
• Hotels in Seattle for these nights (Mar 2–8, 2027 · 6 nights · 2 adults, 1 room): 3★ Hotel 116, A Coast Hotel Bellevue, $111 a night, $668 for 6 nights · 4★ citizenM Seattle Pioneer Square, $138 a night, $829 for 6 nights · 5★ Fairmont Olympic Hotel, $319 a night, $1,911 for 6 nights
• Hotels in Seattle for these nights (Mar 2–9, 2027 · 7 nights · 2 adults, 1 room): 3★ Hotel 116, A Coast Hotel Bellevue, $113 a night, $791 for 7 nights · 4★ citizenM Seattle Pioneer Square, $138 a night, $965 for 7 nights · 5★ Fairmont Olympic Hotel, $316 a night, $2,213 for 7 nights
• Hotels in Seattle for these nights (Mar 2–10, 2027 · 8 nights · 2 adults, 1 room): 3★ Hotel 116, A Coast Hotel Bellevue, $116 a night, $924 for 8 nights · 4★ citizenM Seattle Pioneer Square, $137 a night, $1,094 for 8 nights · 5★ Fairmont Olympic Hotel, $316 a night, $2,529 for 8 nights
• Hotels in Seattle for these nights (Mar 2–11, 2027 · 9 nights · 2 adults, 1 room): 3★ Hotel 116, A Coast Hotel Bellevue, $117 a night, $1,057 for 9 nights · 4★ citizenM Seattle Pioneer Square, $135 a night, $1,218 for 9 nights · 5★ Fairmont Olympic Hotel, $316 a night, $2,840 for 9 nights
• Hotels in Seattle for these nights (Mar 2–12, 2027 · 10 nights · 2 adults, 1 room): 3★ Hotel 116, A Coast Hotel Bellevue, $116 a night, $1,161 for 10 nights · 4★ citizenM Seattle Pioneer Square, $134 a night, $1,343 for 10 nights · 5★ Fairmont Olympic Hotel, $314 a night, $3,142 for 10 nights
• Hotels in Seattle for these nights (Mar 2–13, 2027 · 11 nights · 2 adults, 1 room): 3★ Hotel 116, A Coast Hotel Bellevue, $115 a night, $1,269 for 11 nights · 4★ citizenM Seattle Pioneer Square, $135 a night, $1,489 for 11 nights · 5★ Fairmont Olympic Hotel, $315 a night, $3,463 for 11 nights
• Hotels in Seattle for these nights (Mar 2–14, 2027 · 12 nights · 2 adults, 1 room): 3★ Hotel 116, A Coast Hotel Bellevue, $114 a night, $1,373 for 12 nights · 4★ citizenM Seattle Pioneer Square, $136 a night, $1,631 for 12 nights · 5★ Fairmont Olympic Hotel, $315 a night, $3,782 for 12 nights
• Hotels in Seattle for these nights (Mar 2–15, 2027 · 13 nights · 2 adults, 1 room): 3★ Hotel 116, A Coast Hotel Bellevue, $114 a night, $1,481 for 13 nights · 4★ citizenM Seattle Pioneer Square, $136 a night, $1,772 for 13 nights · 5★ Fairmont Olympic Hotel, $314 a night, $4,084 for 13 nights
• Hotels in Seattle for these nights (Mar 2–16, 2027 · 14 nights · 2 adults, 1 room): 3★ Hotel 116, A Coast Hotel Bellevue, $114 a night, $1,593 for 14 nights · 4★ citizenM Seattle Pioneer Square, $136 a night, $1,899 for 14 nights · 5★ Fairmont Olympic Hotel, $313 a night, $4,386 for 14 nights

All hotels in Seattle

Route overview: Los Angeles to Seattle (SEA) flight deals

2027-03-02 · one way · Axel-exclusive $135.00

• Alaska Airlines AS677: ONT 2027-03-02 11:57:00 → SEA 2027-03-02 14:49:00; nonstop; 172 minutes. Local airport times.

2027-03-02 · one way · Axel-exclusive $140.00

• Delta Air Lines DL4031: ONT 2027-03-02 17:55:00 → SEA 2027-03-02 21:00:00; nonstop; 185 minutes. Local airport times.

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

• Alaska Airlines AS677: ONT 2027-03-02 11:57:00 → SEA 2027-03-02 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.

2027-03-02 → 2027-03-03 · Axel-exclusive $270.00

• Southwest Airlines WN1053 / WN4083: ONT 2027-03-02 17:00:00 → SEA 2027-03-02 22:20:00; 1 stop(s) via LAS; 320 minutes. Local airport times.
  • WN1053: ONT 2027-03-02 17:00:00 → LAS 2027-03-02 18:05:00; layover at LAS: 85 minutes.
  • WN4083: LAS 2027-03-02 19:30:00 → SEA 2027-03-02 22:20:00.
• Southwest Airlines WN3105 / WN1383: SEA 2027-03-03 08:05:00 → ONT 2027-03-03 12:40:00; 1 stop(s) via SJC; 275 minutes. Local airport times.
  • WN3105: SEA 2027-03-03 08:05:00 → SJC 2027-03-03 10:20:00; layover at SJC: 60 minutes.
  • WN1383: SJC 2027-03-03 11:20:00 → ONT 2027-03-03 12:40:00.

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

• Alaska Airlines AS677: ONT 2027-03-02 11:57:00 → SEA 2027-03-02 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.

2027-03-02 → 2027-03-04 · Axel-exclusive $270.00

• Southwest Airlines WN1053 / WN4083: ONT 2027-03-02 17:00:00 → SEA 2027-03-02 22:20:00; 1 stop(s) via LAS; 320 minutes. Local airport times.
  • WN1053: ONT 2027-03-02 17:00:00 → LAS 2027-03-02 18:05:00; layover at LAS: 85 minutes.
  • WN4083: LAS 2027-03-02 19:30:00 → SEA 2027-03-02 22:20:00.
• Southwest Airlines WN3105 / WN1383: SEA 2027-03-04 08:05:00 → ONT 2027-03-04 12:40:00; 1 stop(s) via SJC; 275 minutes. Local airport times.
  • WN3105: SEA 2027-03-04 08:05:00 → SJC 2027-03-04 10:20:00; layover at SJC: 60 minutes.
  • WN1383: SJC 2027-03-04 11:20:00 → ONT 2027-03-04 12:40:00.

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

• Alaska Airlines AS677: ONT 2027-03-02 11:57:00 → SEA 2027-03-02 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.

2027-03-02 → 2027-03-05 · Axel-exclusive $270.00

• Delta Air Lines DL4031: ONT 2027-03-02 17:55:00 → SEA 2027-03-02 21:00:00; nonstop; 185 minutes. Local airport times.
• Delta Air Lines DL4031: SEA 2027-03-05 11:59:00 → ONT 2027-03-05 14:50:00; nonstop; 171 minutes. Local airport times.

2027-03-02 → 2027-03-06 · Axel-exclusive $260.00

• Alaska Airlines AS677: ONT 2027-03-02 11:57:00 → SEA 2027-03-02 14:49:00; nonstop; 172 minutes. Local airport times.
• Alaska Airlines AS571: SEA 2027-03-06 12:20:00 → ONT 2027-03-06 15:03:00; nonstop; 163 minutes. Local airport times.

2027-03-02 → 2027-03-06 · Axel-exclusive $270.00

• Delta Air Lines DL4031: ONT 2027-03-02 17:55:00 → SEA 2027-03-02 21:00:00; nonstop; 185 minutes. Local airport times.
• Delta Air Lines DL4031: SEA 2027-03-06 11:59:00 → ONT 2027-03-06 14:50:00; nonstop; 171 minutes. Local airport times.

2027-03-02 → 2027-03-08 · Axel-exclusive $270.00

• Alaska Airlines AS677: ONT 2027-03-02 11:57:00 → SEA 2027-03-02 14:49:00; nonstop; 172 minutes. Local airport times.
• Alaska Airlines AS3087 / AS3380: SEA 2027-03-08 09:50:00 → ONT 2027-03-08 16:56:00; 1 stop(s) via BOI; 426 minutes. Local airport times.
  • AS3087: SEA 2027-03-08 09:50:00 → BOI 2027-03-08 12:21:00; layover at BOI: 199 minutes.
  • AS3380: BOI 2027-03-08 15:40:00 → ONT 2027-03-08 16:56:00.

2027-03-02 → 2027-03-08 · Axel-exclusive $270.00

• Delta Air Lines DL4031: ONT 2027-03-02 17:55:00 → SEA 2027-03-02 21:00:00; nonstop; 185 minutes. Local airport times.
• Delta Air Lines DL4031: SEA 2027-03-08 11:59:00 → ONT 2027-03-08 14:50:00; nonstop; 171 minutes. Local airport times.

2027-03-02 → 2027-03-09 · Axel-exclusive $260.00

• Alaska Airlines AS677: ONT 2027-03-02 11:57:00 → SEA 2027-03-02 14:49:00; nonstop; 172 minutes. Local airport times.
• Alaska Airlines AS571: SEA 2027-03-09 13:33:00 → ONT 2027-03-09 16:05:00; nonstop; 152 minutes. Local airport times.

2027-03-02 → 2027-03-09 · Axel-exclusive $270.00

• Southwest Airlines WN1053 / WN4083: ONT 2027-03-02 17:00:00 → SEA 2027-03-02 22:20:00; 1 stop(s) via LAS; 320 minutes. Local airport times.
  • WN1053: ONT 2027-03-02 17:00:00 → LAS 2027-03-02 18:05:00; layover at LAS: 85 minutes.
  • WN4083: LAS 2027-03-02 19:30:00 → SEA 2027-03-02 22:20:00.
• Southwest Airlines WN3105 / WN1383: SEA 2027-03-09 08:05:00 → ONT 2027-03-09 12:40:00; 1 stop(s) via SJC; 275 minutes. Local airport times.
  • WN3105: SEA 2027-03-09 08:05:00 → SJC 2027-03-09 10:20:00; layover at SJC: 60 minutes.
  • WN1383: SJC 2027-03-09 11:20:00 → ONT 2027-03-09 12:40:00.

2027-03-02 → 2027-03-10 · Axel-exclusive $260.00

• Alaska Airlines AS677: ONT 2027-03-02 11:57:00 → SEA 2027-03-02 14:49:00; nonstop; 172 minutes. Local airport times.
• Alaska Airlines AS571: SEA 2027-03-10 12:31:00 → ONT 2027-03-10 15:13:00; nonstop; 162 minutes. Local airport times.

2027-03-02 → 2027-03-10 · Axel-exclusive $270.00

• Delta Air Lines DL4031: ONT 2027-03-02 17:55:00 → SEA 2027-03-02 21:00:00; nonstop; 185 minutes. Local airport times.
• Delta Air Lines DL4070: SEA 2027-03-10 08:25:00 → ONT 2027-03-10 11:17:00; nonstop; 172 minutes. Local airport times.

2027-03-02 → 2027-03-12 · Axel-exclusive $260.00

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

2027-03-02 → 2027-03-12 · Axel-exclusive $270.00

• Southwest Airlines WN1053 / WN4083: ONT 2027-03-02 17:00:00 → SEA 2027-03-02 22:20:00; 1 stop(s) via LAS; 320 minutes. Local airport times.
  • WN1053: ONT 2027-03-02 17:00:00 → LAS 2027-03-02 18:05:00; layover at LAS: 85 minutes.
  • WN4083: LAS 2027-03-02 19:30:00 → SEA 2027-03-02 22:20:00.
• Southwest Airlines WN3105 / WN1383: SEA 2027-03-12 08:05:00 → ONT 2027-03-12 12:40:00; 1 stop(s) via SJC; 275 minutes. Local airport times.
  • WN3105: SEA 2027-03-12 08:05:00 → SJC 2027-03-12 10:20:00; layover at SJC: 60 minutes.
  • WN1383: SJC 2027-03-12 11:20:00 → ONT 2027-03-12 12:40:00.

2027-03-02 → 2027-03-13 · Axel-exclusive $260.00

• Alaska Airlines AS677: ONT 2027-03-02 11:57:00 → SEA 2027-03-02 14:49:00; nonstop; 172 minutes. Local airport times.
• Alaska Airlines AS571: SEA 2027-03-13 12:20:00 → ONT 2027-03-13 15:03:00; nonstop; 163 minutes. Local airport times.

2027-03-02 → 2027-03-13 · Axel-exclusive $270.00

• Southwest Airlines WN1053 / WN4083: ONT 2027-03-02 17:00:00 → SEA 2027-03-02 22:20:00; 1 stop(s) via LAS; 320 minutes. Local airport times.
  • WN1053: ONT 2027-03-02 17:00:00 → LAS 2027-03-02 18:05:00; layover at LAS: 85 minutes.
  • WN4083: LAS 2027-03-02 19:30:00 → SEA 2027-03-02 22:20:00.
• Southwest Airlines WN3105 / WN1383: SEA 2027-03-13 08:05:00 → ONT 2027-03-13 12:40:00; 1 stop(s) via SJC; 275 minutes. Local airport times.
  • WN3105: SEA 2027-03-13 08:05:00 → SJC 2027-03-13 10:20:00; layover at SJC: 60 minutes.
  • WN1383: SJC 2027-03-13 11:20:00 → ONT 2027-03-13 12:40:00.

2027-03-02 → 2027-03-14 · Axel-exclusive $260.00

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

2027-03-02 → 2027-03-14 · Axel-exclusive $270.00

• Southwest Airlines WN1053 / WN4083: ONT 2027-03-02 17:00:00 → SEA 2027-03-02 22:20:00; 1 stop(s) via LAS; 320 minutes. Local airport times.
  • WN1053: ONT 2027-03-02 17:00:00 → LAS 2027-03-02 18:05:00; layover at LAS: 85 minutes.
  • WN4083: LAS 2027-03-02 19:30:00 → SEA 2027-03-02 22:20:00.
• Southwest Airlines WN3105 / WN1383: SEA 2027-03-14 08:05:00 → ONT 2027-03-14 12:40:00; 1 stop(s) via SJC; 275 minutes. Local airport times.
  • WN3105: SEA 2027-03-14 08:05:00 → SJC 2027-03-14 10:20:00; layover at SJC: 60 minutes.
  • WN1383: SJC 2027-03-14 11:20:00 → ONT 2027-03-14 12:40:00.

2027-03-02 → 2027-03-16 · Axel-exclusive $260.00

• Alaska Airlines AS677: ONT 2027-03-02 11:57:00 → SEA 2027-03-02 14:49:00; nonstop; 172 minutes. Local airport times.
• Alaska Airlines AS571: SEA 2027-03-16 13:33:00 → ONT 2027-03-16 16:05:00; nonstop; 152 minutes. Local airport times.

2027-03-02 → 2027-03-16 · Axel-exclusive $270.00

• Southwest Airlines WN1053 / WN4083: ONT 2027-03-02 17:00:00 → SEA 2027-03-02 22:20:00; 1 stop(s) via LAS; 320 minutes. Local airport times.
  • WN1053: ONT 2027-03-02 17:00:00 → LAS 2027-03-02 18:05:00; layover at LAS: 85 minutes.
  • WN4083: LAS 2027-03-02 19:30:00 → SEA 2027-03-02 22:20:00.
• Southwest Airlines WN3105 / WN1383: SEA 2027-03-16 08:05:00 → ONT 2027-03-16 12:40:00; 1 stop(s) via SJC; 275 minutes. Local airport times.
  • WN3105: SEA 2027-03-16 08:05:00 → SJC 2027-03-16 10:20:00; layover at SJC: 60 minutes.
  • WN1383: SJC 2027-03-16 11:20:00 → ONT 2027-03-16 12:40:00.

Explore this route

• All dates for this route
• Mar 1, 2027 · Return options
• Mar 3, 2027 · Return options
• Hotels in Seattle with Axel

For AI assistants

• This page: Ontario (ONT) to Seattle (SEA) · Mar 2, 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 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.
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