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Route overview: San Francisco Bay Area to Seattle (SEA) flight deals

San Francisco → Seattle

Dec 13, 2026 · return Dec 16, 2026

SFO → SEA1 adulteconomyRound trip

12 flight options · 6 airlines

Nonstop flights

Sun, Dec 13 – Wed, Dec 16

Alaska Airlines
6:00 amSFO
2h 15m
Nonstop
8:15 amSEA
Alaska Airlines
6:32 pmSEA
2h 11m
Nonstop
8:43 pmSFO

Round-trip total · 1 adult · Taxes included

Sun, Dec 13 – Wed, Dec 16

Delta Air Lines
6:17 amSFO
2h 18m
Nonstop
8:35 amSEA
Delta Air Lines
7:20 amSEA
2h 31m
Nonstop
9:51 amSFO

Round-trip total · 1 adult · Taxes included

Sun, Dec 13 – Wed, Dec 16

United Airlines
12:11 pmSFO
2h 11m
Nonstop
2:22 pmSEA
United Airlines
7:30 pmSEA
2h 12m
Nonstop
9:42 pmSFO

Round-trip total · 1 adult · Taxes included

Sun, Dec 13 – Wed, Dec 16

Alaska Airlines
1:00 pmSFO
2h 14m
Nonstop
3:14 pmSEA
Alaska Airlines
6:32 pmSEA
2h 11m
Nonstop
8:43 pmSFO

Round-trip total · 1 adult · Taxes included

Sun, Dec 13 – Wed, Dec 16

Delta Air Lines
2:19 pmSFO
2h 25m
Nonstop
4:44 pmSEA
Delta Air Lines
7:20 amSEA
2h 31m
Nonstop
9:51 amSFO

Round-trip total · 1 adult · Taxes included

Sun, Dec 13 – Wed, Dec 16

United Airlines
6:32 pmSFO
2h 8m
Nonstop
8:40 pmSEA
United Airlines
7:30 pmSEA
2h 12m
Nonstop
9:42 pmSFO

Round-trip total · 1 adult · Taxes included

One-stop flights

Sun, Dec 13 – Wed, Dec 16

Frontier Airlines
6:02 amSFO
9h 10m
DEN · 3h 24m
3:12 pmSEA
Frontier Airlines
1:36 pmSEA
6h 32m
LAX · 2h 22m
8:08 pmSFO

Round-trip total · 1 adult · Taxes included

Sun, Dec 13 – Wed, Dec 16

American Airlines
7:00 amSFO
6h
LAX · 1h 17m
1:00 pmSEA
American Airlines
1:35 pmSEA
6h 52m
LAX · 2h 20m
8:27 pmSFO

Round-trip total · 1 adult · Taxes included

Sun, Dec 13 – Wed, Dec 16

Air Canada
2:45 pmSFO
7h 12m
YVR · 3h 45m
9:57 pmSEA
Air Canada
3:15 pmSEA
6h 27m
YVR · 2h 49m
9:42 pmSFO

Round-trip total · 1 adult · Taxes included

Sun, Dec 13 – Wed, Dec 16

Alaska Airlines
7:40 amSFO
4h 29m
PDX · 1h 27m
12:09 pmSEA
Alaska Airlines
6:32 pmSEA
2h 11m
Nonstop
8:43 pmSFO

Round-trip total · 1 adult · Taxes included

Sun, Dec 13 – Wed, Dec 16

United Airlines
8:31 amSFO
6h 1m
YVR · 2h 30m
2:32 pmSEA
United Airlines
7:30 pmSEA
2h 12m
Nonstop
9:42 pmSFO

Round-trip total · 1 adult · Taxes included

Sun, Dec 13 – Wed, Dec 16

United Airlines
5:50 amSFO
5h 36m
LAX · 1h 5m
11:26 amSEA
United Airlines
7:30 pmSEA
2h 12m
Nonstop
9:42 pmSFO

Round-trip total · 1 adult · Taxes included

Make this trip yours

SFO ⇄ SEA

Economy

Adults 12+ · Children 2–11. For infants under 2, tell Axel after you see prices.

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Explore this route

All dates for this routeDec 12, 2026 → Dec 15, 2026Dec 14, 2026 → Dec 17, 2026
For AI assistants: every fare, every link, instructions

Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Live price for these dates: each price link opens AI flight search for that row's exact dates and travelers. Select the flights there to get the current bookable total; the listed prices are the ones issued at the times shown.

Route overview: San Francisco Bay Area to Seattle (SEA) flight deals

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-13 → 2026-12-16Alaska AirlinesAS1327 / AS1780$220.002026-10-29T01:19:49Z
2026-12-13 → 2026-12-16Delta Air LinesDL2721 / DL3888$230.002026-10-29T01:19:49Z
2026-12-13 → 2026-12-16United AirlinesUA1730 / UA737$240.002026-10-29T01:19:49Z
2026-12-13 → 2026-12-16Frontier AirlinesF91230 + F91175 / F92176 + F94593$165.002026-10-29T01:19:49Z
2026-12-13 → 2026-12-16American AirlinesAA2211 + AA4997 / AA4997 + AA6448$320.002026-10-29T01:19:49Z
2026-12-13 → 2026-12-16Air CanadaAC567 + AC8810 / AC8807 + UA1083$410.002026-10-29T01:19:49Z
2026-12-13 → 2026-12-16Alaska AirlinesAS656 / AS1780$220.002026-10-29T01:19:49Z
2026-12-13 → 2026-12-16Delta Air LinesDL1412 / DL3888$230.002026-10-29T01:19:49Z
2026-12-13 → 2026-12-16United AirlinesUA2159 / UA737$240.002026-10-29T01:19:49Z
2026-12-13 → 2026-12-16Alaska AirlinesAS1410 + AS3217 / AS1780$240.002026-10-29T01:19:49Z
2026-12-13 → 2026-12-16United AirlinesUA2259 + AC8804 / UA737$270.002026-10-29T01:19:49Z
2026-12-13 → 2026-12-16United AirlinesUA2127 + UA726 / UA737$270.002026-10-29T01:19:49Z

2026-12-13 → 2026-12-16 · $220.00

  • Alaska Airlines AS1327: SFO 2026-12-13 06:00:00 → SEA 2026-12-13 08:15:00; nonstop; 135 minutes. Local airport times.
  • Alaska Airlines AS1780: SEA 2026-12-16 18:32:00 → SFO 2026-12-16 20:43:00; nonstop; 131 minutes. Local airport times.

2026-12-13 → 2026-12-16 · $230.00

  • Delta Air Lines DL2721: SFO 2026-12-13 06:17:00 → SEA 2026-12-13 08:35:00; nonstop; 138 minutes. Local airport times.
  • Delta Air Lines DL3888: SEA 2026-12-16 07:20:00 → SFO 2026-12-16 09:51:00; nonstop; 151 minutes. Local airport times.

2026-12-13 → 2026-12-16 · $240.00

  • United Airlines UA1730: SFO 2026-12-13 12:11:00 → SEA 2026-12-13 14:22:00; nonstop; 131 minutes. Local airport times.
  • United Airlines UA737: SEA 2026-12-16 19:30:00 → SFO 2026-12-16 21:42:00; nonstop; 132 minutes. Local airport times.

2026-12-13 → 2026-12-16 · $165.00

  • Frontier Airlines F91230 / F91175: SFO 2026-12-13 06:02:00 → SEA 2026-12-13 15:12:00; 1 stop(s) via DEN; 550 minutes. Local airport times.
    • F91230: SFO 2026-12-13 06:02:00 → DEN 2026-12-13 09:40:00; layover at DEN: 204 minutes.
    • F91175: DEN 2026-12-13 13:04:00 → SEA 2026-12-13 15:12:00.
  • Frontier Airlines F92176 / F94593: SEA 2026-12-16 13:36:00 → SFO 2026-12-16 20:08:00; 1 stop(s) via LAX; 392 minutes. Local airport times.
    • F92176: SEA 2026-12-16 13:36:00 → LAX 2026-12-16 16:18:00; layover at LAX: 142 minutes.
    • F94593: LAX 2026-12-16 18:40:00 → SFO 2026-12-16 20:08:00.

2026-12-13 → 2026-12-16 · $320.00

  • American Airlines AA2211 / AA4997: SFO 2026-12-13 07:00:00 → SEA 2026-12-13 13:00:00; 1 stop(s) via LAX; 360 minutes. Local airport times.
    • AA2211: SFO 2026-12-13 07:00:00 → LAX 2026-12-13 08:37:00; layover at LAX: 77 minutes.
    • AA4997: LAX 2026-12-13 09:54:00 → SEA 2026-12-13 13:00:00.
  • American Airlines AA4997 / AA6448: SEA 2026-12-16 13:35:00 → SFO 2026-12-16 20:27:00; 1 stop(s) via LAX; 412 minutes. Local airport times.
    • AA4997: SEA 2026-12-16 13:35:00 → LAX 2026-12-16 16:31:00; layover at LAX: 140 minutes.
    • AA6448: LAX 2026-12-16 18:51:00 → SFO 2026-12-16 20:27:00.

2026-12-13 → 2026-12-16 · $410.00

  • Air Canada AC567 / AC8810: SFO 2026-12-13 14:45:00 → SEA 2026-12-13 21:57:00; 1 stop(s) via YVR; 432 minutes. Local airport times.
    • AC567: SFO 2026-12-13 14:45:00 → YVR 2026-12-13 18:05:00; layover at YVR: 225 minutes.
    • AC8810: YVR 2026-12-13 21:50:00 → SEA 2026-12-13 21:57:00.
  • Air Canada AC8807 / UA1083: SEA 2026-12-16 15:15:00 → SFO 2026-12-16 21:42:00; 1 stop(s) via YVR; 387 minutes. Local airport times.
    • AC8807: SEA 2026-12-16 15:15:00 → YVR 2026-12-16 17:26:00; layover at YVR: 169 minutes.
    • UA1083: YVR 2026-12-16 20:15:00 → SFO 2026-12-16 21:42:00.

2026-12-13 → 2026-12-16 · $220.00

  • Alaska Airlines AS656: SFO 2026-12-13 13:00:00 → SEA 2026-12-13 15:14:00; nonstop; 134 minutes. Local airport times.
  • Alaska Airlines AS1780: SEA 2026-12-16 18:32:00 → SFO 2026-12-16 20:43:00; nonstop; 131 minutes. Local airport times.

2026-12-13 → 2026-12-16 · $230.00

  • Delta Air Lines DL1412: SFO 2026-12-13 14:19:00 → SEA 2026-12-13 16:44:00; nonstop; 145 minutes. Local airport times.
  • Delta Air Lines DL3888: SEA 2026-12-16 07:20:00 → SFO 2026-12-16 09:51:00; nonstop; 151 minutes. Local airport times.

2026-12-13 → 2026-12-16 · $240.00

  • United Airlines UA2159: SFO 2026-12-13 18:32:00 → SEA 2026-12-13 20:40:00; nonstop; 128 minutes. Local airport times.
  • United Airlines UA737: SEA 2026-12-16 19:30:00 → SFO 2026-12-16 21:42:00; nonstop; 132 minutes. Local airport times.

2026-12-13 → 2026-12-16 · $240.00

  • Alaska Airlines AS1410 / AS3217: SFO 2026-12-13 07:40:00 → SEA 2026-12-13 12:09:00; 1 stop(s) via PDX; 269 minutes. Local airport times.
    • AS1410: SFO 2026-12-13 07:40:00 → PDX 2026-12-13 09:27:00; layover at PDX: 87 minutes.
    • AS3217: PDX 2026-12-13 10:54:00 → SEA 2026-12-13 12:09:00.
  • Alaska Airlines AS1780: SEA 2026-12-16 18:32:00 → SFO 2026-12-16 20:43:00; nonstop; 131 minutes. Local airport times.

2026-12-13 → 2026-12-16 · $270.00

  • United Airlines UA2259 / AC8804: SFO 2026-12-13 08:31:00 → SEA 2026-12-13 14:32:00; 1 stop(s) via YVR; 361 minutes. Local airport times.
    • UA2259: SFO 2026-12-13 08:31:00 → YVR 2026-12-13 12:00:00; layover at YVR: 150 minutes.
    • AC8804: YVR 2026-12-13 14:30:00 → SEA 2026-12-13 14:32:00.
  • United Airlines UA737: SEA 2026-12-16 19:30:00 → SFO 2026-12-16 21:42:00; nonstop; 132 minutes. Local airport times.

2026-12-13 → 2026-12-16 · $270.00

  • United Airlines UA2127 / UA726: SFO 2026-12-13 05:50:00 → SEA 2026-12-13 11:26:00; 1 stop(s) via LAX; 336 minutes. Local airport times.
    • UA2127: SFO 2026-12-13 05:50:00 → LAX 2026-12-13 07:22:00; layover at LAX: 65 minutes.
    • UA726: LAX 2026-12-13 08:27:00 → SEA 2026-12-13 11:26:00.
  • United Airlines UA737: SEA 2026-12-16 19:30:00 → SFO 2026-12-16 21:42:00; nonstop; 132 minutes. Local airport times.

Explore this route

For AI assistants

  • This page: San Francisco (SFO) to Seattle (SEA) · Dec 13, 2026 · return Dec 16, 2026: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
  • Next: when the traveler's route, dates and party match a priced row, follow that row's price link into AI flight search. Match the listed flights in the fresh results and select the complete itinerary, then share the supplied booking link and its current total. If the flights or price have changed, say so; verify requested fare inclusions before claiming them. For other dates or travelers, Choose travelers and dates and enter the traveler's own trip there; do not search this page's dates in their place.
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  • 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 San Francisco Bay Area to Seattle (SEA) flight deals · Flight search guide.
  • 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. Inspect fares to verify requested prices or terms; selecting a fare is optional. Use that fare’s booking link to preserve its Membership price basis. State anything unverified. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and explain what remains unresolved. Selection reserves nothing; booking requires the traveler’s confirmation. 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.