Travel with Axel,
get the best price.

San Francisco → Seattle

Nov 20, 2026 · one way

SFO → SEA1 adulteconomyOne way

12 flight options · 6 airlines

Nonstop flights

Fri, Nov 20 · One way

Alaska Airlines
7:00 amSFO
2h 16m
Nonstop
9:16 amSEA

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

Delta Air Lines
5:56 pmSFO
2h 28m
Nonstop
8:24 pmSEA

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

United Airlines
9:08 pmSFO
2h 10m
Nonstop
11:18 pmSEA

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

Alaska Airlines
3:58 pmSFO
2h 15m
Nonstop
6:13 pmSEA

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

Delta Air Lines
6:17 amSFO
2h 18m
Nonstop
8:35 amSEA

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

United Airlines
2:05 pmSFO
2h 17m
Nonstop
4:22 pmSEA

One-way total · 1 adult · Taxes included

One-stop flights

Fri, Nov 20 · One way

Frontier Airlines
6:02 amSFO
9h 10m
DEN · 3h 24m
3:12 pmSEA

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

American Airlines
7:00 amSFO
6h
LAX · 1h 17m
1:00 pmSEA

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

Air Canada
2:45 pmSFO
7h 12m
YVR · 3h 45m
9:57 pmSEA

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

Alaska Airlines
7:40 amSFO
4h 29m
PDX · 1h 27m
12:09 pmSEA

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

United Airlines
5:50 amSFO
5h 36m
LAX · 1h 5m
11:26 amSEA

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

United Airlines
8:31 amSFO
6h 1m
YVR · 2h 30m
2:32 pmSEA

One-way 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.

No account needed to see prices.

Already have an account? Log in

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
  • Backed by Y CombinatorTrusted by 100,000+ travelers.

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 routeNov 20, 2026 → Nov 23, 2026Nov 27, 2026 → Dec 4, 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.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-11-20 · one wayAlaska AirlinesAS591$115.002026-10-29T01:19:49Z
2026-11-20 · one wayDelta Air LinesDL3707$120.002026-10-29T01:19:49Z
2026-11-20 · one wayUnited AirlinesUA1007$125.002026-10-29T01:19:49Z
2026-11-20 · one wayFrontier AirlinesF91230 + F91175$85.002026-10-29T01:19:49Z
2026-11-20 · one wayAmerican AirlinesAA2211 + AA4997$165.002026-10-29T01:19:49Z
2026-11-20 · one wayAir CanadaAC567 + AC8810$215.002026-10-29T01:19:49Z
2026-11-20 · one wayAlaska AirlinesAS630$115.002026-10-29T01:19:49Z
2026-11-20 · one wayDelta Air LinesDL2721$120.002026-10-29T01:19:49Z
2026-11-20 · one wayUnited AirlinesUA433$125.002026-10-29T01:19:49Z
2026-11-20 · one wayAlaska AirlinesAS1410 + AS3217$135.002026-10-29T01:19:49Z
2026-11-20 · one wayUnited AirlinesUA2127 + UA726$155.002026-10-29T01:19:49Z
2026-11-20 · one wayUnited AirlinesUA2259 + AC8804$155.002026-10-29T01:19:49Z

2026-11-20 · one way · $115.00

  • Alaska Airlines AS591: SFO 2026-11-20 07:00:00 → SEA 2026-11-20 09:16:00; nonstop; 136 minutes. Local airport times.

2026-11-20 · one way · $120.00

  • Delta Air Lines DL3707: SFO 2026-11-20 17:56:00 → SEA 2026-11-20 20:24:00; nonstop; 148 minutes. Local airport times.

2026-11-20 · one way · $125.00

  • United Airlines UA1007: SFO 2026-11-20 21:08:00 → SEA 2026-11-20 23:18:00; nonstop; 130 minutes. Local airport times.

2026-11-20 · one way · $85.00

  • Frontier Airlines F91230 / F91175: SFO 2026-11-20 06:02:00 → SEA 2026-11-20 15:12:00; 1 stop(s) via DEN; 550 minutes. Local airport times.
    • F91230: SFO 2026-11-20 06:02:00 → DEN 2026-11-20 09:40:00; layover at DEN: 204 minutes.
    • F91175: DEN 2026-11-20 13:04:00 → SEA 2026-11-20 15:12:00.

2026-11-20 · one way · $165.00

  • American Airlines AA2211 / AA4997: SFO 2026-11-20 07:00:00 → SEA 2026-11-20 13:00:00; 1 stop(s) via LAX; 360 minutes. Local airport times.
    • AA2211: SFO 2026-11-20 07:00:00 → LAX 2026-11-20 08:37:00; layover at LAX: 77 minutes.
    • AA4997: LAX 2026-11-20 09:54:00 → SEA 2026-11-20 13:00:00.

2026-11-20 · one way · $215.00

  • Air Canada AC567 / AC8810: SFO 2026-11-20 14:45:00 → SEA 2026-11-20 21:57:00; 1 stop(s) via YVR; 432 minutes. Local airport times.
    • AC567: SFO 2026-11-20 14:45:00 → YVR 2026-11-20 18:05:00; layover at YVR: 225 minutes.
    • AC8810: YVR 2026-11-20 21:50:00 → SEA 2026-11-20 21:57:00.

2026-11-20 · one way · $115.00

  • Alaska Airlines AS630: SFO 2026-11-20 15:58:00 → SEA 2026-11-20 18:13:00; nonstop; 135 minutes. Local airport times.

2026-11-20 · one way · $120.00

  • Delta Air Lines DL2721: SFO 2026-11-20 06:17:00 → SEA 2026-11-20 08:35:00; nonstop; 138 minutes. Local airport times.

2026-11-20 · one way · $125.00

  • United Airlines UA433: SFO 2026-11-20 14:05:00 → SEA 2026-11-20 16:22:00; nonstop; 137 minutes. Local airport times.

2026-11-20 · one way · $135.00

  • Alaska Airlines AS1410 / AS3217: SFO 2026-11-20 07:40:00 → SEA 2026-11-20 12:09:00; 1 stop(s) via PDX; 269 minutes. Local airport times.
    • AS1410: SFO 2026-11-20 07:40:00 → PDX 2026-11-20 09:27:00; layover at PDX: 87 minutes.
    • AS3217: PDX 2026-11-20 10:54:00 → SEA 2026-11-20 12:09:00.

2026-11-20 · one way · $155.00

  • United Airlines UA2127 / UA726: SFO 2026-11-20 05:50:00 → SEA 2026-11-20 11:26:00; 1 stop(s) via LAX; 336 minutes. Local airport times.
    • UA2127: SFO 2026-11-20 05:50:00 → LAX 2026-11-20 07:22:00; layover at LAX: 65 minutes.
    • UA726: LAX 2026-11-20 08:27:00 → SEA 2026-11-20 11:26:00.

2026-11-20 · one way · $155.00

  • United Airlines UA2259 / AC8804: SFO 2026-11-20 08:31:00 → SEA 2026-11-20 14:32:00; 1 stop(s) via YVR; 361 minutes. Local airport times.
    • UA2259: SFO 2026-11-20 08:31:00 → YVR 2026-11-20 12:00:00; layover at YVR: 150 minutes.
    • AC8804: YVR 2026-11-20 14:30:00 → SEA 2026-11-20 14:32:00.

More dates for this route