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San Francisco → Seattle

Dec 2, 2026 · return Dec 4, 2026

SFO → SEA1 adulteconomyRound trip

12 flight options · 5 airlines

Nonstop flights

Wed, Dec 2 – Fri, Dec 4

Alaska Airlines
6:00 amSFO
2h 16m
Nonstop
8:16 amSEA
Alaska Airlines
1:50 pmSEA
2h 11m
Nonstop
4:01 pmSFO

Round-trip total · 1 adult · Taxes included

Wed, Dec 2 – Fri, Dec 4

Delta Air Lines
5:53 pmSFO
2h 20m
Nonstop
8:13 pmSEA
Delta Air Lines
10:57 amSEA
2h 29m
Nonstop
1:26 pmSFO

Round-trip total · 1 adult · Taxes included

Wed, Dec 2 – Fri, Dec 4

United Airlines
4:17 pmSFO
2h 12m
Nonstop
6:29 pmSEA
United Airlines
7:35 pmSEA
2h 15m
Nonstop
9:50 pmSFO

Round-trip total · 1 adult · Taxes included

Wed, Dec 2 – Fri, Dec 4

Alaska Airlines
5:42 pmSFO
2h 12m
Nonstop
7:54 pmSEA
Alaska Airlines
1:50 pmSEA
2h 11m
Nonstop
4:01 pmSFO

Round-trip total · 1 adult · Taxes included

Wed, Dec 2 – Fri, Dec 4

Delta Air Lines
6:17 amSFO
2h 18m
Nonstop
8:35 amSEA
Delta Air Lines
10:57 amSEA
2h 29m
Nonstop
1:26 pmSFO

Round-trip total · 1 adult · Taxes included

Wed, Dec 2 – Fri, Dec 4

United Airlines
8:47 pmSFO
2h 10m
Nonstop
10:57 pmSEA
United Airlines
7:35 pmSEA
2h 15m
Nonstop
9:50 pmSFO

Round-trip total · 1 adult · Taxes included

One-stop flights

Wed, Dec 2 – Fri, Dec 4

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

Wed, Dec 2 – Fri, Dec 4

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

Wed, Dec 2 – Fri, Dec 4

Alaska Airlines
7:40 amSFO
4h 29m
PDX · 1h 27m
12:09 pmSEA
Alaska Airlines
1:50 pmSEA
2h 11m
Nonstop
4:01 pmSFO

Round-trip total · 1 adult · Taxes included

Wed, Dec 2 – Fri, Dec 4

Delta Air Lines
6:00 amSFO
2h 18m
Nonstop
8:18 amSEA
Delta Air Lines
12:31 pmSEA
7h 11m
LAX · 2h 58m
7:42 pmSFO

Round-trip total · 1 adult · Taxes included

Wed, Dec 2 – Fri, Dec 4

United Airlines
8:31 amSFO
6h 1m
YVR · 2h 30m
2:32 pmSEA
United Airlines
7:35 pmSEA
2h 15m
Nonstop
9:50 pmSFO

Round-trip total · 1 adult · Taxes included

Wed, Dec 2 – Fri, Dec 4

United Airlines
5:50 amSFO
5h 36m
LAX · 1h 5m
11:26 amSEA
United Airlines
7:35 pmSEA
2h 15m
Nonstop
9:50 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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Why book with Axel
  • A real airline bookingThe booking is in the airline’s own system under your name. After you book, Alaska Airlines emails you its confirmation code and e-ticket, usually within 15 minutes and occasionally up to a couple of hours while the booking is processed.
  • Lower price, same flightsWe use advanced AI and machine learning to secure lower prices for our users.
  • Not satisfied? Full refund.If you are unhappy with the experience for any reason, or simply change your mind, cancel within 24 hours of booking (departure 7+ days away) and we refund you in full. We stand by our product. Cancellation policy
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Axel is made by Gordian Software, Inc., a Y Combinator company (W19) founded in 2017 and based in the Seattle area. The company is led by CEO Stephen Grabowski, formerly of Skyscanner. How Axel works · About

More dates

All dates for this routeOct 30, 2026 → Nov 2, 2026Oct 31, 2026 → Nov 7, 2026Nov 13, 2026 → Nov 16, 2026Nov 14, 2026 → Nov 21, 2026Nov 24, 2026 → Nov 29, 2026Nov 27, 2026 → Nov 30, 2026Nov 28, 2026 → Dec 5, 2026Dec 11, 2026 → Dec 14, 2026Dec 12, 2026 → Dec 19, 2026Dec 22, 2026 → Dec 27, 2026Dec 25, 2026 → Dec 28, 2026Dec 26, 2026 → Jan 2, 2027Dec 30, 2026 → Jan 2, 2027Jan 8, 2027 → Jan 11, 2027Jan 9, 2027 → Jan 16, 2027Jan 15, 2027 → Jan 18, 2027Jan 22, 2027 → Jan 25, 2027Jan 23, 2027 → Jan 30, 2027Feb 5, 2027 → Feb 8, 2027Feb 6, 2027 → Feb 13, 2027Feb 12, 2027 → Feb 15, 2027Mar 5, 2027 → Mar 8, 2027Mar 6, 2027 → Mar 13, 2027Mar 25, 2027 → Mar 29, 2027Apr 2, 2027 → Apr 5, 2027Apr 3, 2027 → Apr 10, 2027Apr 30, 2027 → May 3, 2027May 1, 2027 → May 8, 2027May 28, 2027 → May 31, 2027May 29, 2027 → Jun 5, 2027Jun 25, 2027 → Jun 28, 2027Jun 26, 2027 → Jul 3, 2027Jul 2, 2027 → Jul 6, 2027Jul 23, 2027 → Jul 26, 2027Jul 24, 2027 → Jul 31, 2027Aug 20, 2027 → Aug 23, 2027Aug 21, 2027 → Aug 28, 2027Sep 3, 2027 → Sep 6, 2027Sep 17, 2027 → Sep 20, 2027Oct 30, 2026 · One way
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.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-02 → 2026-12-04Alaska AirlinesAS68 / AS688$220.002026-10-29T01:19:49Z
2026-12-02 → 2026-12-04Delta Air LinesDL3707 / DL4118$230.002026-10-29T01:19:49Z
2026-12-02 → 2026-12-04United AirlinesUA2279 / UA1334$240.002026-10-29T01:19:49Z
2026-12-02 → 2026-12-04Frontier AirlinesF91230 + F91175 / F92176 + F94593$165.002026-10-29T01:19:49Z
2026-12-02 → 2026-12-04American AirlinesAA2211 + AA4997 / AA4997 + AA6448$320.002026-10-29T01:19:49Z
2026-12-02 → 2026-12-04Alaska AirlinesAS1340 / AS688$220.002026-10-29T01:19:49Z
2026-12-02 → 2026-12-04Delta Air LinesDL2721 / DL4118$230.002026-10-29T01:19:49Z
2026-12-02 → 2026-12-04United AirlinesUA1896 / UA1334$240.002026-10-29T01:19:49Z
2026-12-02 → 2026-12-04Alaska AirlinesAS1410 + AS3217 / AS688$240.002026-10-29T01:19:49Z
2026-12-02 → 2026-12-04Delta Air LinesDL2721 / DL2914 + DL2197$265.002026-10-29T01:19:49Z
2026-12-02 → 2026-12-04United AirlinesUA2259 + AC8804 / UA1334$270.002026-10-29T01:19:49Z
2026-12-02 → 2026-12-04United AirlinesUA2127 + UA726 / UA1334$270.002026-10-29T01:19:49Z

2026-12-02 → 2026-12-04 · $220.00

  • Alaska Airlines AS68: SFO 2026-12-02 06:00:00 → SEA 2026-12-02 08:16:00; nonstop; 136 minutes. Local airport times.
  • Alaska Airlines AS688: SEA 2026-12-04 13:50:00 → SFO 2026-12-04 16:01:00; nonstop; 131 minutes. Local airport times.

2026-12-02 → 2026-12-04 · $230.00

  • Delta Air Lines DL3707: SFO 2026-12-02 17:53:00 → SEA 2026-12-02 20:13:00; nonstop; 140 minutes. Local airport times.
  • Delta Air Lines DL4118: SEA 2026-12-04 10:57:00 → SFO 2026-12-04 13:26:00; nonstop; 149 minutes. Local airport times.

2026-12-02 → 2026-12-04 · $240.00

  • United Airlines UA2279: SFO 2026-12-02 16:17:00 → SEA 2026-12-02 18:29:00; nonstop; 132 minutes. Local airport times.
  • United Airlines UA1334: SEA 2026-12-04 19:35:00 → SFO 2026-12-04 21:50:00; nonstop; 135 minutes. Local airport times.

2026-12-02 → 2026-12-04 · $165.00

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

2026-12-02 → 2026-12-04 · $320.00

  • American Airlines AA2211 / AA4997: SFO 2026-12-02 07:00:00 → SEA 2026-12-02 13:00:00; 1 stop(s) via LAX; 360 minutes. Local airport times.
    • AA2211: SFO 2026-12-02 07:00:00 → LAX 2026-12-02 08:37:00; layover at LAX: 77 minutes.
    • AA4997: LAX 2026-12-02 09:54:00 → SEA 2026-12-02 13:00:00.
  • American Airlines AA4997 / AA6448: SEA 2026-12-04 13:35:00 → SFO 2026-12-04 20:27:00; 1 stop(s) via LAX; 412 minutes. Local airport times.
    • AA4997: SEA 2026-12-04 13:35:00 → LAX 2026-12-04 16:31:00; layover at LAX: 140 minutes.
    • AA6448: LAX 2026-12-04 18:51:00 → SFO 2026-12-04 20:27:00.

2026-12-02 → 2026-12-04 · $220.00

  • Alaska Airlines AS1340: SFO 2026-12-02 17:42:00 → SEA 2026-12-02 19:54:00; nonstop; 132 minutes. Local airport times.
  • Alaska Airlines AS688: SEA 2026-12-04 13:50:00 → SFO 2026-12-04 16:01:00; nonstop; 131 minutes. Local airport times.

2026-12-02 → 2026-12-04 · $230.00

  • Delta Air Lines DL2721: SFO 2026-12-02 06:17:00 → SEA 2026-12-02 08:35:00; nonstop; 138 minutes. Local airport times.
  • Delta Air Lines DL4118: SEA 2026-12-04 10:57:00 → SFO 2026-12-04 13:26:00; nonstop; 149 minutes. Local airport times.

2026-12-02 → 2026-12-04 · $240.00

  • United Airlines UA1896: SFO 2026-12-02 20:47:00 → SEA 2026-12-02 22:57:00; nonstop; 130 minutes. Local airport times.
  • United Airlines UA1334: SEA 2026-12-04 19:35:00 → SFO 2026-12-04 21:50:00; nonstop; 135 minutes. Local airport times.

2026-12-02 → 2026-12-04 · $240.00

  • Alaska Airlines AS1410 / AS3217: SFO 2026-12-02 07:40:00 → SEA 2026-12-02 12:09:00; 1 stop(s) via PDX; 269 minutes. Local airport times.
    • AS1410: SFO 2026-12-02 07:40:00 → PDX 2026-12-02 09:27:00; layover at PDX: 87 minutes.
    • AS3217: PDX 2026-12-02 10:54:00 → SEA 2026-12-02 12:09:00.
  • Alaska Airlines AS688: SEA 2026-12-04 13:50:00 → SFO 2026-12-04 16:01:00; nonstop; 131 minutes. Local airport times.

2026-12-02 → 2026-12-04 · $265.00

  • Delta Air Lines DL2721: SFO 2026-12-02 06:00:00 → SEA 2026-12-02 08:18:00; nonstop; 138 minutes. Local airport times.
  • Delta Air Lines DL2914 / DL2197: SEA 2026-12-04 12:31:00 → SFO 2026-12-04 19:42:00; 1 stop(s) via LAX; 431 minutes. Local airport times.
    • DL2914: SEA 2026-12-04 12:31:00 → LAX 2026-12-04 15:13:00; layover at LAX: 178 minutes.
    • DL2197: LAX 2026-12-04 18:11:00 → SFO 2026-12-04 19:42:00.

2026-12-02 → 2026-12-04 · $270.00

  • United Airlines UA2259 / AC8804: SFO 2026-12-02 08:31:00 → SEA 2026-12-02 14:32:00; 1 stop(s) via YVR; 361 minutes. Local airport times.
    • UA2259: SFO 2026-12-02 08:31:00 → YVR 2026-12-02 12:00:00; layover at YVR: 150 minutes.
    • AC8804: YVR 2026-12-02 14:30:00 → SEA 2026-12-02 14:32:00.
  • United Airlines UA1334: SEA 2026-12-04 19:35:00 → SFO 2026-12-04 21:50:00; nonstop; 135 minutes. Local airport times.

2026-12-02 → 2026-12-04 · $270.00

  • United Airlines UA2127 / UA726: SFO 2026-12-02 05:50:00 → SEA 2026-12-02 11:26:00; 1 stop(s) via LAX; 336 minutes. Local airport times.
    • UA2127: SFO 2026-12-02 05:50:00 → LAX 2026-12-02 07:22:00; layover at LAX: 65 minutes.
    • UA726: LAX 2026-12-02 08:27:00 → SEA 2026-12-02 11:26:00.
  • United Airlines UA1334: SEA 2026-12-04 19:35:00 → SFO 2026-12-04 21:50:00; nonstop; 135 minutes. Local airport times.

More dates for this route