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Route overview: Seattle area (Sea-Tac and Paine Field) to San Francisco (SFO) flight deals

Seattle → San Francisco

Nov 21, 2026 · one way

SEA → SFO1 adulteconomyOne way

12 flight options · 5 airlines

Nonstop flights

Sat, Nov 21 · One way

Alaska Airlines
8:35 pmSEA
2h 11m
Nonstop
10:46 pmSFO

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sat, Nov 21 · One way

Delta Air Lines
3:10 pmSEA
2h 18m
Nonstop
5:28 pmSFO

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sat, Nov 21 · One way

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

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sat, Nov 21 · One way

Alaska Airlines
11:40 amSEA
2h 25m
Nonstop
2:05 pmSFO

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sat, Nov 21 · One way

Delta Air Lines
7:20 amSEA
2h 23m
Nonstop
9:43 amSFO

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sat, Nov 21 · One way

United Airlines
3:35 pmSEA
2h 15m
Nonstop
5:50 pmSFO

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

One-stop flights

Sat, Nov 21 · One way

American Airlines
4:40 pmSEA
6h 37m
LAX · 1h 59m
11:17 pmSFO

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sat, Nov 21 · One way

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

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sat, Nov 21 · One way

Alaska Airlines
12:22 pmSEA
4h 15m
PDX · 1h 17m
4:37 pmSFO

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sat, Nov 21 · One way

Alaska Airlines
12:24 pmSEA
5h 29m
RDM · 2h 34m
5:53 pmSFO

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sat, Nov 21 · One way

Alaska Airlines
4:45 pmSEA
5h 15m
LAX · 1h 8m
10:00 pmSFO

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sat, Nov 21 · One way

United Airlines
6:30 pmSEA
5h 36m
LAX · 1h 7m
12:06 am+1SFO

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Make this trip yours

SEA ⇄ SFO

Economy

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

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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

Explore this route

All dates for this routeNov 20, 2026 · Return optionsNov 22, 2026 · Return optionsHotels in San Francisco with Axel
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.

See flights for these dates: each price link opens AI flight search for that row's exact dates and travelers. Select the complete itinerary there.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-11-21 · one wayAlaska AirlinesAS619Axel-exclusive $168.752026-10-29T00:39:30Z
2026-11-21 · one wayDelta Air LinesDL3707Axel-exclusive $175.502026-10-29T00:39:30Z
2026-11-21 · one wayUnited AirlinesUA737Axel-exclusive $182.252026-10-29T00:39:30Z
2026-11-21 · one wayAmerican AirlinesAA4945 + AA6260Axel-exclusive $236.252026-10-29T00:39:30Z
2026-11-21 · one wayAir CanadaAC8807 + UA1083Axel-exclusive $283.502026-10-29T00:39:30Z
2026-11-21 · one wayAlaska AirlinesAS655Axel-exclusive $168.752026-10-29T00:39:30Z
2026-11-21 · one wayDelta Air LinesDL3034Axel-exclusive $175.502026-10-29T00:39:30Z
2026-11-21 · one wayUnited AirlinesUA2478Axel-exclusive $182.252026-10-29T00:39:30Z
2026-11-21 · one wayAlaska AirlinesAS488 + AS236Axel-exclusive $202.502026-10-29T00:39:30Z
2026-11-21 · one wayAlaska AirlinesAS2292 + AS3347Axel-exclusive $202.502026-10-29T00:39:30Z
2026-11-21 · one wayAlaska AirlinesAS696 + AS411Axel-exclusive $202.502026-10-29T00:39:30Z
2026-11-21 · one wayUnited AirlinesUA5955 + UA1853Axel-exclusive $229.502026-10-29T00:39:30Z

Route overview: Seattle area (Sea-Tac and Paine Field) to San Francisco (SFO) flight deals

2026-11-21 · one way · Axel-exclusive $168.75

  • Alaska Airlines AS619: SEA 2026-11-21 20:35:00 → SFO 2026-11-21 22:46:00; nonstop; 131 minutes. Local airport times.

2026-11-21 · one way · Axel-exclusive $175.50

  • Delta Air Lines DL3707: SEA 2026-11-21 15:10:00 → SFO 2026-11-21 17:28:00; nonstop; 138 minutes. Local airport times.

2026-11-21 · one way · Axel-exclusive $182.25

  • United Airlines UA737: SEA 2026-11-21 19:30:00 → SFO 2026-11-21 21:42:00; nonstop; 132 minutes. Local airport times.

2026-11-21 · one way · Axel-exclusive $236.25

  • American Airlines AA4945 / AA6260: SEA 2026-11-21 16:40:00 → SFO 2026-11-21 23:17:00; 1 stop(s) via LAX; 397 minutes. Local airport times.
    • AA4945: SEA 2026-11-21 16:40:00 → LAX 2026-11-21 19:36:00; layover at LAX: 119 minutes.
    • AA6260: LAX 2026-11-21 21:35:00 → SFO 2026-11-21 23:17:00.

2026-11-21 · one way · Axel-exclusive $283.50

  • Air Canada AC8807 / UA1083: SEA 2026-11-21 15:15:00 → SFO 2026-11-21 21:42:00; 1 stop(s) via YVR; 387 minutes. Local airport times.
    • AC8807: SEA 2026-11-21 15:15:00 → YVR 2026-11-21 17:26:00; layover at YVR: 169 minutes.
    • UA1083: YVR 2026-11-21 20:15:00 → SFO 2026-11-21 21:42:00.

2026-11-21 · one way · Axel-exclusive $168.75

  • Alaska Airlines AS655: SEA 2026-11-21 11:40:00 → SFO 2026-11-21 14:05:00; nonstop; 145 minutes. Local airport times.

2026-11-21 · one way · Axel-exclusive $175.50

  • Delta Air Lines DL3034: SEA 2026-11-21 07:20:00 → SFO 2026-11-21 09:43:00; nonstop; 143 minutes. Local airport times.

2026-11-21 · one way · Axel-exclusive $182.25

  • United Airlines UA2478: SEA 2026-11-21 15:35:00 → SFO 2026-11-21 17:50:00; nonstop; 135 minutes. Local airport times.

2026-11-21 · one way · Axel-exclusive $202.50

  • Alaska Airlines AS488 / AS236: SEA 2026-11-21 12:22:00 → SFO 2026-11-21 16:37:00; 1 stop(s) via PDX; 255 minutes. Local airport times.
    • AS488: SEA 2026-11-21 12:22:00 → PDX 2026-11-21 13:24:00; layover at PDX: 77 minutes.
    • AS236: PDX 2026-11-21 14:41:00 → SFO 2026-11-21 16:37:00.

2026-11-21 · one way · Axel-exclusive $202.50

  • Alaska Airlines AS2292 / AS3347: SEA 2026-11-21 12:24:00 → SFO 2026-11-21 17:53:00; 1 stop(s) via RDM; 329 minutes. Local airport times.
    • AS2292: SEA 2026-11-21 12:24:00 → RDM 2026-11-21 13:33:00; layover at RDM: 154 minutes.
    • AS3347: RDM 2026-11-21 16:07:00 → SFO 2026-11-21 17:53:00.

2026-11-21 · one way · Axel-exclusive $202.50

  • Alaska Airlines AS696 / AS411: SEA 2026-11-21 16:45:00 → SFO 2026-11-21 22:00:00; 1 stop(s) via LAX; 315 minutes. Local airport times.
    • AS696: SEA 2026-11-21 16:45:00 → LAX 2026-11-21 19:27:00; layover at LAX: 68 minutes.
    • AS411: LAX 2026-11-21 20:35:00 → SFO 2026-11-21 22:00:00.

2026-11-21 · one way · Axel-exclusive $229.50

  • United Airlines UA5955 / UA1853: SEA 2026-11-21 18:30:00 → SFO 2026-11-22 00:06:00; 1 stop(s) via LAX; 336 minutes. Local airport times.
    • UA5955: SEA 2026-11-21 18:30:00 → LAX 2026-11-21 21:28:00; layover at LAX: 67 minutes.
    • UA1853: LAX 2026-11-21 22:35:00 → SFO 2026-11-22 00:06:00.

Explore this route

For AI assistants

  • This page: Seattle (SEA) to San Francisco (SFO) · Nov 21, 2026 · one way: 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.
  • 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.
  • 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 Seattle area (Sea-Tac and Paine Field) to San Francisco (SFO) 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. Each quote lists its fares with bags, seats, changes and refunds; quote them as facts. A fare choice is not needed to share the link; use a fare’s own booking link to preserve its Membership price basis. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and say what is still to choose. 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.