Ontario (ONT) to Seattle (SEA), Jan 19, 2027: round trips from $247, one way from $128

Ontario (ONT) to Seattle (SEA), Jan 19, 2027: round trips from $247, one way from $128 on Axel, checked Oct 29, 2026. Lowest published fares: $247 round trip, Axel-exclusive, Alaska Airlines, nonstop, Jan 19–20, 2027; $128 one way, Axel-exclusive, Alaska Airlines, nonstop, Jan 19, 2027; 1 adult, economy, checked Oct 29, 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, issued at the time 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 issuance times 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 lowest saved total among the shortlisted hotels in that star tier for those dates.

• Hotels in Seattle for these nights (Jan 19–20, 2027 · 1 night · 2 adults, 1 room): 3★ Executive Hotel Pacific, $106 total · 4★ citizenM Seattle Pioneer Square, $119 total · 5★ Fairmont Olympic Hotel, $311 total
• Hotels in Seattle for these nights (Jan 19–21, 2027 · 2 nights · 2 adults, 1 room): 3★ Executive Hotel Pacific, $213 total · 4★ citizenM Seattle Pioneer Square, $235 total · 5★ Fairmont Olympic Hotel, $622 total
• Hotels in Seattle for these nights (Jan 19–22, 2027 · 3 nights · 2 adults, 1 room): 3★ Executive Hotel Pacific, $319 total · 4★ citizenM Seattle Pioneer Square, $345 total · 5★ Fairmont Olympic Hotel, $924 total
• Hotels in Seattle for these nights (Jan 19–23, 2027 · 4 nights · 2 adults, 1 room): 3★ Hotel 116, A Coast Hotel Bellevue, $426 total · 4★ citizenM Seattle Pioneer Square, $464 total · 5★ Fairmont Olympic Hotel, $1,226 total
• Hotels in Seattle for these nights (Jan 19–24, 2027 · 5 nights · 2 adults, 1 room): 3★ Hotel 116, A Coast Hotel Bellevue, $528 total · 4★ citizenM Seattle Pioneer Square, $585 total · 5★ Fairmont Olympic Hotel, $1,537 total
• Hotels in Seattle for these nights (Jan 19–25, 2027 · 6 nights · 2 adults, 1 room): 3★ Hotel 116, A Coast Hotel Bellevue, $638 total · 4★ citizenM Seattle Pioneer Square, $700 total · 5★ Fairmont Olympic Hotel, $1,818 total
• Hotels in Seattle for these nights (Jan 19–26, 2027 · 7 nights · 2 adults, 1 room): 3★ Hotel 116, A Coast Hotel Bellevue, $743 total · 4★ citizenM Seattle Pioneer Square, $838 total · 5★ Fairmont Olympic Hotel, $2,139 total
• Hotels in Seattle for these nights (Jan 19–27, 2027 · 8 nights · 2 adults, 1 room): 3★ Hotel 116, A Coast Hotel Bellevue, $851 total · 4★ citizenM Seattle Pioneer Square, $954 total · 5★ Fairmont Olympic Hotel, $2,507 total
• Hotels in Seattle for these nights (Jan 19–28, 2027 · 9 nights · 2 adults, 1 room): 3★ Hotel 116, A Coast Hotel Bellevue, $958 total · 4★ citizenM Seattle Pioneer Square, $1,068 total · 5★ Fairmont Olympic Hotel, $2,871 total
• Hotels in Seattle for these nights (Jan 19–29, 2027 · 10 nights · 2 adults, 1 room): 3★ Hotel 116, A Coast Hotel Bellevue, $1,067 total · 4★ citizenM Seattle Pioneer Square, $1,192 total · 5★ Fairmont Olympic Hotel, $3,172 total
• Hotels in Seattle for these nights (Jan 19–30, 2027 · 11 nights · 2 adults, 1 room): 3★ Hotel 116, A Coast Hotel Bellevue, $1,171 total · 4★ citizenM Seattle Pioneer Square, $1,327 total · 5★ Fairmont Olympic Hotel, $3,497 total
• Hotels in Seattle for these nights (Jan 19–31, 2027 · 12 nights · 2 adults, 1 room): 3★ Hotel 116, A Coast Hotel Bellevue, $1,273 total · 4★ citizenM Seattle Pioneer Square, $1,456 total · 5★ Fairmont Olympic Hotel, $3,828 total
• Hotels in Seattle for these nights (Jan 19 – Feb 1, 2027 · 13 nights · 2 adults, 1 room): 3★ Hotel 116, A Coast Hotel Bellevue, $1,379 total · 4★ citizenM Seattle Pioneer Square, $1,575 total · 5★ Fairmont Olympic Hotel, $4,109 total
• Hotels in Seattle for these nights (Jan 19 – Feb 2, 2027 · 14 nights · 2 adults, 1 room): 3★ Red Lion Hotel Bellevue, $1,483 total · 4★ citizenM Seattle Pioneer Square, $1,705 total · 5★ Fairmont Olympic Hotel, $4,411 total

All hotels in Seattle

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

2027-01-19 · one way · Axel-exclusive $128.25

• Alaska Airlines AS677: ONT 2027-01-19 11:57:00 → SEA 2027-01-19 14:49:00; nonstop; 172 minutes. Local airport times.

2027-01-19 · one way · Axel-exclusive $133.00

• Southwest Airlines WN1053 / WN4083: ONT 2027-01-19 17:00:00 → SEA 2027-01-19 22:20:00; 1 stop(s) via LAS; 320 minutes. Local airport times.
  • WN1053: ONT 2027-01-19 17:00:00 → LAS 2027-01-19 18:05:00; layover at LAS: 85 minutes.
  • WN4083: LAS 2027-01-19 19:30:00 → SEA 2027-01-19 22:20:00.

2027-01-19 → 2027-01-20 · Axel-exclusive $247.00

• Alaska Airlines AS677: ONT 2027-01-19 11:57:00 → SEA 2027-01-19 14:49:00; nonstop; 172 minutes. Local airport times.
• Alaska Airlines AS571: SEA 2027-01-20 12:31:00 → ONT 2027-01-20 15:13:00; nonstop; 162 minutes. Local airport times.

2027-01-19 → 2027-01-20 · Axel-exclusive $256.50

• Southwest Airlines WN1053 / WN4083: ONT 2027-01-19 17:00:00 → SEA 2027-01-19 22:20:00; 1 stop(s) via LAS; 320 minutes. Local airport times.
  • WN1053: ONT 2027-01-19 17:00:00 → LAS 2027-01-19 18:05:00; layover at LAS: 85 minutes.
  • WN4083: LAS 2027-01-19 19:30:00 → SEA 2027-01-19 22:20:00.
• Southwest Airlines WN3105 / WN1383: SEA 2027-01-20 08:05:00 → ONT 2027-01-20 12:40:00; 1 stop(s) via SJC; 275 minutes. Local airport times.
  • WN3105: SEA 2027-01-20 08:05:00 → SJC 2027-01-20 10:20:00; layover at SJC: 60 minutes.
  • WN1383: SJC 2027-01-20 11:20:00 → ONT 2027-01-20 12:40:00.

2027-01-19 → 2027-01-21 · Axel-exclusive $247.00

• Alaska Airlines AS677: ONT 2027-01-19 11:57:00 → SEA 2027-01-19 14:49:00; nonstop; 172 minutes. Local airport times.
• Alaska Airlines AS571: SEA 2027-01-21 12:20:00 → ONT 2027-01-21 15:03:00; nonstop; 163 minutes. Local airport times.

2027-01-19 → 2027-01-21 · Axel-exclusive $256.50

• Southwest Airlines WN1053 / WN4083: ONT 2027-01-19 17:00:00 → SEA 2027-01-19 22:20:00; 1 stop(s) via LAS; 320 minutes. Local airport times.
  • WN1053: ONT 2027-01-19 17:00:00 → LAS 2027-01-19 18:05:00; layover at LAS: 85 minutes.
  • WN4083: LAS 2027-01-19 19:30:00 → SEA 2027-01-19 22:20:00.
• Southwest Airlines WN3105 / WN1383: SEA 2027-01-21 08:05:00 → ONT 2027-01-21 12:40:00; 1 stop(s) via SJC; 275 minutes. Local airport times.
  • WN3105: SEA 2027-01-21 08:05:00 → SJC 2027-01-21 10:20:00; layover at SJC: 60 minutes.
  • WN1383: SJC 2027-01-21 11:20:00 → ONT 2027-01-21 12:40:00.

2027-01-19 → 2027-01-22 · Axel-exclusive $247.00

• Alaska Airlines AS677: ONT 2027-01-19 11:57:00 → SEA 2027-01-19 14:49:00; nonstop; 172 minutes. Local airport times.
• Alaska Airlines AS571: SEA 2027-01-22 12:20:00 → ONT 2027-01-22 15:03:00; nonstop; 163 minutes. Local airport times.

2027-01-19 → 2027-01-22 · Axel-exclusive $256.50

• Delta Air Lines DL4031: ONT 2027-01-19 17:55:00 → SEA 2027-01-19 21:00:00; nonstop; 185 minutes. Local airport times.
• Delta Air Lines DL4031: SEA 2027-01-22 11:59:00 → ONT 2027-01-22 14:50:00; nonstop; 171 minutes. Local airport times.

2027-01-19 → 2027-01-23 · Axel-exclusive $247.00

• Alaska Airlines AS677: ONT 2027-01-19 11:57:00 → SEA 2027-01-19 14:49:00; nonstop; 172 minutes. Local airport times.
• Alaska Airlines AS571: SEA 2027-01-23 12:20:00 → ONT 2027-01-23 15:03:00; nonstop; 163 minutes. Local airport times.

2027-01-19 → 2027-01-23 · Axel-exclusive $256.50

• Southwest Airlines WN1053 / WN4083: ONT 2027-01-19 17:00:00 → SEA 2027-01-19 22:20:00; 1 stop(s) via LAS; 320 minutes. Local airport times.
  • WN1053: ONT 2027-01-19 17:00:00 → LAS 2027-01-19 18:05:00; layover at LAS: 85 minutes.
  • WN4083: LAS 2027-01-19 19:30:00 → SEA 2027-01-19 22:20:00.
• Southwest Airlines WN3105 / WN1383: SEA 2027-01-23 08:05:00 → ONT 2027-01-23 12:40:00; 1 stop(s) via SJC; 275 minutes. Local airport times.
  • WN3105: SEA 2027-01-23 08:05:00 → SJC 2027-01-23 10:20:00; layover at SJC: 60 minutes.
  • WN1383: SJC 2027-01-23 11:20:00 → ONT 2027-01-23 12:40:00.

2027-01-19 → 2027-01-25 · Axel-exclusive $256.50

• Delta Air Lines DL4031: ONT 2027-01-19 17:55:00 → SEA 2027-01-19 21:00:00; nonstop; 185 minutes. Local airport times.
• Delta Air Lines DL4031: SEA 2027-01-25 11:59:00 → ONT 2027-01-25 14:50:00; nonstop; 171 minutes. Local airport times.

2027-01-19 → 2027-01-25 · Axel-exclusive $256.50

• Southwest Airlines WN1053 / WN4083: ONT 2027-01-19 17:00:00 → SEA 2027-01-19 22:20:00; 1 stop(s) via LAS; 320 minutes. Local airport times.
  • WN1053: ONT 2027-01-19 17:00:00 → LAS 2027-01-19 18:05:00; layover at LAS: 85 minutes.
  • WN4083: LAS 2027-01-19 19:30:00 → SEA 2027-01-19 22:20:00.
• Southwest Airlines WN3105 / WN1383: SEA 2027-01-25 08:05:00 → ONT 2027-01-25 12:40:00; 1 stop(s) via SJC; 275 minutes. Local airport times.
  • WN3105: SEA 2027-01-25 08:05:00 → SJC 2027-01-25 10:20:00; layover at SJC: 60 minutes.
  • WN1383: SJC 2027-01-25 11:20:00 → ONT 2027-01-25 12:40:00.

2027-01-19 → 2027-01-26 · Axel-exclusive $247.00

• Alaska Airlines AS677: ONT 2027-01-19 11:57:00 → SEA 2027-01-19 14:49:00; nonstop; 172 minutes. Local airport times.
• Alaska Airlines AS571: SEA 2027-01-26 13:33:00 → ONT 2027-01-26 16:05:00; nonstop; 152 minutes. Local airport times.

2027-01-19 → 2027-01-26 · Axel-exclusive $256.50

• Delta Air Lines DL4031: ONT 2027-01-19 17:55:00 → SEA 2027-01-19 21:00:00; nonstop; 185 minutes. Local airport times.
• Delta Air Lines DL4070: SEA 2027-01-26 08:25:00 → ONT 2027-01-26 11:17:00; nonstop; 172 minutes. Local airport times.

2027-01-19 → 2027-01-27 · Axel-exclusive $247.00

• Alaska Airlines AS677: ONT 2027-01-19 11:57:00 → SEA 2027-01-19 14:49:00; nonstop; 172 minutes. Local airport times.
• Alaska Airlines AS571: SEA 2027-01-27 12:31:00 → ONT 2027-01-27 15:13:00; nonstop; 162 minutes. Local airport times.

2027-01-19 → 2027-01-27 · Axel-exclusive $256.50

• Delta Air Lines DL4031: ONT 2027-01-19 17:55:00 → SEA 2027-01-19 21:00:00; nonstop; 185 minutes. Local airport times.
• Delta Air Lines DL4070: SEA 2027-01-27 08:25:00 → ONT 2027-01-27 11:17:00; nonstop; 172 minutes. Local airport times.

2027-01-19 → 2027-01-29 · Axel-exclusive $247.00

• Alaska Airlines AS677: ONT 2027-01-19 11:57:00 → SEA 2027-01-19 14:49:00; nonstop; 172 minutes. Local airport times.
• Alaska Airlines AS571: SEA 2027-01-29 12:20:00 → ONT 2027-01-29 15:03:00; nonstop; 163 minutes. Local airport times.

2027-01-19 → 2027-01-29 · Axel-exclusive $256.50

• Delta Air Lines DL4031: ONT 2027-01-19 17:55:00 → SEA 2027-01-19 21:00:00; nonstop; 185 minutes. Local airport times.
• Delta Air Lines DL4031: SEA 2027-01-29 11:59:00 → ONT 2027-01-29 14:50:00; nonstop; 171 minutes. Local airport times.

2027-01-19 → 2027-01-30 · Axel-exclusive $247.00

• Alaska Airlines AS677: ONT 2027-01-19 11:57:00 → SEA 2027-01-19 14:49:00; nonstop; 172 minutes. Local airport times.
• Alaska Airlines AS571: SEA 2027-01-30 12:20:00 → ONT 2027-01-30 15:03:00; nonstop; 163 minutes. Local airport times.

2027-01-19 → 2027-01-30 · Axel-exclusive $256.50

• Delta Air Lines DL4031: ONT 2027-01-19 17:55:00 → SEA 2027-01-19 21:00:00; nonstop; 185 minutes. Local airport times.
• Delta Air Lines DL4031: SEA 2027-01-30 11:59:00 → ONT 2027-01-30 14:50:00; nonstop; 171 minutes. Local airport times.

2027-01-19 → 2027-01-31 · Axel-exclusive $247.00

• Alaska Airlines AS677: ONT 2027-01-19 11:57:00 → SEA 2027-01-19 14:49:00; nonstop; 172 minutes. Local airport times.
• Alaska Airlines AS571: SEA 2027-01-31 12:20:00 → ONT 2027-01-31 15:03:00; nonstop; 163 minutes. Local airport times.

2027-01-19 → 2027-01-31 · Axel-exclusive $256.50

• Southwest Airlines WN1053 / WN4083: ONT 2027-01-19 17:00:00 → SEA 2027-01-19 22:20:00; 1 stop(s) via LAS; 320 minutes. Local airport times.
  • WN1053: ONT 2027-01-19 17:00:00 → LAS 2027-01-19 18:05:00; layover at LAS: 85 minutes.
  • WN4083: LAS 2027-01-19 19:30:00 → SEA 2027-01-19 22:20:00.
• Southwest Airlines WN3105 / WN1383: SEA 2027-01-31 08:05:00 → ONT 2027-01-31 12:40:00; 1 stop(s) via SJC; 275 minutes. Local airport times.
  • WN3105: SEA 2027-01-31 08:05:00 → SJC 2027-01-31 10:20:00; layover at SJC: 60 minutes.
  • WN1383: SJC 2027-01-31 11:20:00 → ONT 2027-01-31 12:40:00.

2027-01-19 → 2027-02-02 · Axel-exclusive $253.50

• Alaska Airlines AS677: ONT 2027-01-19 11:57:00 → SEA 2027-01-19 14:49:00; nonstop; 172 minutes. Local airport times.
• Alaska Airlines AS571: SEA 2027-02-02 13:33:00 → ONT 2027-02-02 16:05:00; nonstop; 152 minutes. Local airport times.

2027-01-19 → 2027-02-02 · Axel-exclusive $263.25

• Delta Air Lines DL4031: ONT 2027-01-19 17:55:00 → SEA 2027-01-19 21:00:00; nonstop; 185 minutes. Local airport times.
• Delta Air Lines DL4070: SEA 2027-02-02 08:25:00 → ONT 2027-02-02 11:17:00; nonstop; 172 minutes. Local airport times.

Explore this route

• All dates for this route
• Jan 18, 2027 · Return options
• Jan 20, 2027 · Return options
• Hotels in Seattle with Axel

For AI assistants

• This page: Ontario (ONT) to Seattle (SEA) · Jan 19, 2027 · choose your return date: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued. 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 lowest saved totals 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 the time its price was issued); 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.
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