Travel with Axel, get the best price.

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

Seattle (SEA) to San Francisco (SFO), Dec 21, 2026: round trips from $329, one way from $175

Seattle (SEA) to San Francisco (SFO), Dec 21, 2026: round trips from $329, one way from $175 on Axel, checked Oct 29, 2026. Lowest published fares: $329 round trip, Axel-exclusive, Alaska Airlines, nonstop, Dec 21–22, 2026; $175 one way, Axel-exclusive, Alaska Airlines, nonstop, Dec 21, 2026; 1 adult, economy, checked Oct 29, 2026.

SEA → SFO1 adulteconomyOne way and round trips

30 flight options · 2 airlines

Choose your return date

One-way flights and round trips by duration. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

December 2026

Flights for your trip

  1. Mon, Dec 21 · One way

    Alaska Airlines
    8:51 pmSEA
    2h 11m
    Nonstop
    11:02 pmSFO

    One-way total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  2. Mon, Dec 21 · One way

    Delta Air Lines
    7:52 pmSEA
    2h 16m
    Nonstop
    10:08 pmSFO

    One-way total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  3. Mon, Dec 21 – Tue, Dec 22

    Alaska Airlines
    8:51 pmSEA
    2h 11m
    Nonstop
    11:02 pmSFO
    Alaska Airlines
    9:26 pmSFO
    2h 18m
    Nonstop
    11:44 pmSEA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  4. Mon, Dec 21 – Tue, Dec 22

    Delta Air Lines
    7:52 pmSEA
    2h 16m
    Nonstop
    10:08 pmSFO
    Delta Air Lines
    5:56 pmSFO
    2h 28m
    Nonstop
    8:24 pmSEA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  5. Mon, Dec 21 – Wed, Dec 23

    Alaska Airlines
    8:51 pmSEA
    2h 11m
    Nonstop
    11:02 pmSFO
    Alaska Airlines
    2:37 pmSFO
    2h 15m
    Nonstop
    4:52 pmSEA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  6. Mon, Dec 21 – Wed, Dec 23

    Delta Air Lines
    7:52 pmSEA
    2h 16m
    Nonstop
    10:08 pmSFO
    Delta Air Lines
    10:41 amSFO
    2h 19m
    Nonstop
    1:00 pmSEA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  7. Mon, Dec 21 – Thu, Dec 24

    Alaska Airlines
    8:51 pmSEA
    2h 11m
    Nonstop
    11:02 pmSFO
    Alaska Airlines
    7:00 amSFO
    2h 16m
    Nonstop
    9:16 amSEA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  8. Mon, Dec 21 – Thu, Dec 24

    Delta Air Lines
    7:52 pmSEA
    2h 16m
    Nonstop
    10:08 pmSFO
    Delta Air Lines
    10:41 amSFO
    2h 19m
    Nonstop
    1:00 pmSEA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  9. Mon, Dec 21 – Fri, Dec 25

    Alaska Airlines
    8:51 pmSEA
    2h 11m
    Nonstop
    11:02 pmSFO
    Alaska Airlines
    6:00 amSFO
    2h 17m
    Nonstop
    8:17 amSEA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  10. Mon, Dec 21 – Fri, Dec 25

    Delta Air Lines
    7:52 pmSEA
    2h 16m
    Nonstop
    10:08 pmSFO
    Delta Air Lines
    5:56 pmSFO
    2h 28m
    Nonstop
    8:24 pmSEA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  11. Mon, Dec 21 – Sun, Dec 27

    Alaska Airlines
    8:51 pmSEA
    2h 11m
    Nonstop
    11:02 pmSFO
    Alaska Airlines
    6:00 amSFO
    2h 17m
    Nonstop
    8:17 amSEA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  12. Mon, Dec 21 – Sun, Dec 27

    Delta Air Lines
    7:52 pmSEA
    2h 16m
    Nonstop
    10:08 pmSFO
    Delta Air Lines
    10:41 amSFO
    2h 19m
    Nonstop
    1:00 pmSEA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  13. Mon, Dec 21 – Mon, Dec 28

    Alaska Airlines
    8:51 pmSEA
    2h 11m
    Nonstop
    11:02 pmSFO
    Alaska Airlines
    7:00 amSFO
    2h 16m
    Nonstop
    9:16 amSEA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  14. Mon, Dec 21 – Mon, Dec 28

    Delta Air Lines
    7:52 pmSEA
    2h 16m
    Nonstop
    10:08 pmSFO
    Delta Air Lines
    10:41 amSFO
    2h 19m
    Nonstop
    1:00 pmSEA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  15. Mon, Dec 21 – Tue, Dec 29

    Alaska Airlines
    8:51 pmSEA
    2h 11m
    Nonstop
    11:02 pmSFO
    Alaska Airlines
    9:26 pmSFO
    2h 18m
    Nonstop
    11:44 pmSEA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  16. Mon, Dec 21 – Tue, Dec 29

    Delta Air Lines
    7:52 pmSEA
    2h 16m
    Nonstop
    10:08 pmSFO
    Delta Air Lines
    5:56 pmSFO
    2h 28m
    Nonstop
    8:24 pmSEA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  17. Mon, Dec 21 – Thu, Dec 31

    Alaska Airlines
    8:51 pmSEA
    2h 11m
    Nonstop
    11:02 pmSFO
    Alaska Airlines
    7:00 amSFO
    2h 16m
    Nonstop
    9:16 amSEA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  18. Mon, Dec 21 – Thu, Dec 31

    Delta Air Lines
    7:52 pmSEA
    2h 16m
    Nonstop
    10:08 pmSFO
    Delta Air Lines
    10:41 amSFO
    2h 19m
    Nonstop
    1:00 pmSEA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  19. Mon, Dec 21 – Fri, Jan 1

    Alaska Airlines
    8:51 pmSEA
    2h 11m
    Nonstop
    11:02 pmSFO
    Alaska Airlines
    6:00 amSFO
    2h 17m
    Nonstop
    8:17 amSEA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  20. Mon, Dec 21 – Fri, Jan 1

    Delta Air Lines
    7:52 pmSEA
    2h 16m
    Nonstop
    10:08 pmSFO
    Delta Air Lines
    5:56 pmSFO
    2h 28m
    Nonstop
    8:24 pmSEA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  21. Mon, Dec 21 – Sat, Jan 2

    Alaska Airlines
    8:51 pmSEA
    2h 11m
    Nonstop
    11:02 pmSFO
    Alaska Airlines
    6:00 amSFO
    2h 17m
    Nonstop
    8:17 amSEA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  22. Mon, Dec 21 – Sat, Jan 2

    Delta Air Lines
    7:52 pmSEA
    2h 16m
    Nonstop
    10:08 pmSFO
    Delta Air Lines
    2:20 pmSFO
    2h 24m
    Nonstop
    4:44 pmSEA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  23. Mon, Dec 21 – Mon, Jan 4

    Alaska Airlines
    8:51 pmSEA
    2h 11m
    Nonstop
    11:02 pmSFO
    Alaska Airlines
    7:00 amSFO
    2h 16m
    Nonstop
    9:16 amSEA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  24. Mon, Dec 21 – Mon, Jan 4

    Delta Air Lines
    7:52 pmSEA
    2h 16m
    Nonstop
    10:08 pmSFO
    Delta Air Lines
    10:41 amSFO
    2h 19m
    Nonstop
    1:00 pmSEA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

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1 of 24

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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Explore this route

All dates for this routeDec 20, 2026 · Return optionsDec 22, 2026 · Return optionsHotels in San Francisco with Axel
For AI assistants: every fare, every link, instructions

Seattle (SEA) to San Francisco (SFO), Dec 21, 2026: round trips from $329, one way from $175 on Axel, checked Oct 29, 2026. Lowest published fares: $329 round trip, Axel-exclusive, Alaska Airlines, nonstop, Dec 21–22, 2026; $175 one way, Axel-exclusive, Alaska Airlines, nonstop, Dec 21, 2026; 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.

Exact travel datesAirlineFlightsTimes, duration, stopsTotal pricePrice issued (UTC)
2026-12-21 · one wayAlaska AirlinesAS72520:51:00→23:02:00 2h 11m nonstopAxel-exclusive $175.002026-10-29T00:39:30Z
2026-12-21 · one wayDelta Air LinesDL263519:52:00→22:08:00 2h 16m nonstopAxel-exclusive $182.002026-10-29T00:39:30Z
2026-12-21 → 2026-12-22Alaska AirlinesAS725 / AS59120:51:00→23:02:00 2h 11m nonstop · 21:26:00→23:44:00 2h 18m nonstopAxel-exclusive $329.002026-10-29T00:39:30Z
2026-12-21 → 2026-12-22Delta Air LinesDL2635 / DL370719:52:00→22:08:00 2h 16m nonstop · 17:56:00→20:24:00 2h 28m nonstopAxel-exclusive $343.002026-10-29T00:39:30Z
2026-12-21 → 2026-12-23Alaska AirlinesAS725 / AS63020:51:00→23:02:00 2h 11m nonstop · 14:37:00→16:52:00 2h 15m nonstopAxel-exclusive $329.002026-10-29T00:39:30Z
2026-12-21 → 2026-12-23Delta Air LinesDL2635 / DL135619:52:00→22:08:00 2h 16m nonstop · 10:41:00→13:00:00 2h 19m nonstopAxel-exclusive $343.002026-10-29T00:39:30Z
2026-12-21 → 2026-12-24Alaska AirlinesAS725 / AS59120:51:00→23:02:00 2h 11m nonstop · 07:00:00→09:16:00 2h 16m nonstopAxel-exclusive $329.002026-10-29T00:39:30Z
2026-12-21 → 2026-12-24Delta Air LinesDL2635 / DL135619:52:00→22:08:00 2h 16m nonstop · 10:41:00→13:00:00 2h 19m nonstopAxel-exclusive $343.002026-10-29T00:39:30Z
2026-12-21 → 2026-12-25Alaska AirlinesAS725 / AS132720:51:00→23:02:00 2h 11m nonstop · 06:00:00→08:17:00 2h 17m nonstopAxel-exclusive $329.002026-10-29T00:39:30Z
2026-12-21 → 2026-12-25Delta Air LinesDL2635 / DL370719:52:00→22:08:00 2h 16m nonstop · 17:56:00→20:24:00 2h 28m nonstopAxel-exclusive $343.002026-10-29T00:39:30Z
2026-12-21 → 2026-12-26Alaska AirlinesAS725 / AS132720:51:00→23:02:00 2h 11m nonstop · 06:00:00→08:17:00 2h 17m nonstopAxel-exclusive $329.002026-10-29T00:39:30Z
2026-12-21 → 2026-12-26Delta Air LinesDL2635 / DL411819:52:00→22:08:00 2h 16m nonstop · 14:20:00→16:44:00 2h 24m nonstopAxel-exclusive $343.002026-10-29T00:39:30Z
2026-12-21 → 2026-12-27Alaska AirlinesAS725 / AS132720:51:00→23:02:00 2h 11m nonstop · 06:00:00→08:17:00 2h 17m nonstopAxel-exclusive $329.002026-10-29T00:39:30Z
2026-12-21 → 2026-12-27Delta Air LinesDL2635 / DL135619:52:00→22:08:00 2h 16m nonstop · 10:41:00→13:00:00 2h 19m nonstopAxel-exclusive $343.002026-10-29T00:39:30Z
2026-12-21 → 2026-12-28Alaska AirlinesAS725 / AS59120:51:00→23:02:00 2h 11m nonstop · 07:00:00→09:16:00 2h 16m nonstopAxel-exclusive $329.002026-10-29T00:39:30Z
2026-12-21 → 2026-12-28Delta Air LinesDL2635 / DL303419:52:00→22:08:00 2h 16m nonstop · 10:41:00→13:00:00 2h 19m nonstopAxel-exclusive $343.002026-10-29T00:39:30Z
2026-12-21 → 2026-12-29Alaska AirlinesAS725 / AS59120:51:00→23:02:00 2h 11m nonstop · 21:26:00→23:44:00 2h 18m nonstopAxel-exclusive $329.002026-10-29T00:39:30Z
2026-12-21 → 2026-12-29Delta Air LinesDL2635 / DL370719:52:00→22:08:00 2h 16m nonstop · 17:56:00→20:24:00 2h 28m nonstopAxel-exclusive $343.002026-10-29T00:39:30Z
2026-12-21 → 2026-12-30Alaska AirlinesAS725 / AS63020:51:00→23:02:00 2h 11m nonstop · 14:37:00→16:52:00 2h 15m nonstopAxel-exclusive $329.002026-10-29T00:39:30Z
2026-12-21 → 2026-12-30Delta Air LinesDL2635 / DL135619:52:00→22:08:00 2h 16m nonstop · 10:41:00→13:00:00 2h 19m nonstopAxel-exclusive $343.002026-10-29T00:39:30Z
2026-12-21 → 2026-12-31Alaska AirlinesAS725 / AS59120:51:00→23:02:00 2h 11m nonstop · 07:00:00→09:16:00 2h 16m nonstopAxel-exclusive $329.002026-10-29T00:39:30Z
2026-12-21 → 2026-12-31Delta Air LinesDL2635 / DL135619:52:00→22:08:00 2h 16m nonstop · 10:41:00→13:00:00 2h 19m nonstopAxel-exclusive $343.002026-10-29T00:39:30Z
2026-12-21 → 2027-01-01Alaska AirlinesAS725 / AS132720:51:00→23:02:00 2h 11m nonstop · 06:00:00→08:17:00 2h 17m nonstopAxel-exclusive $329.002026-10-29T00:39:30Z
2026-12-21 → 2027-01-01Delta Air LinesDL2635 / DL370719:52:00→22:08:00 2h 16m nonstop · 17:56:00→20:24:00 2h 28m nonstopAxel-exclusive $343.002026-10-29T00:39:30Z
2026-12-21 → 2027-01-02Alaska AirlinesAS725 / AS132720:51:00→23:02:00 2h 11m nonstop · 06:00:00→08:17:00 2h 17m nonstopAxel-exclusive $329.002026-10-29T00:39:30Z
2026-12-21 → 2027-01-02Delta Air LinesDL2635 / DL411819:52:00→22:08:00 2h 16m nonstop · 14:20:00→16:44:00 2h 24m nonstopAxel-exclusive $343.002026-10-29T00:39:30Z
2026-12-21 → 2027-01-03Alaska AirlinesAS725 / AS65620:51:00→23:02:00 2h 11m nonstop · 12:30:00→14:47:00 2h 17m nonstopAxel-exclusive $329.002026-10-29T00:39:30Z
2026-12-21 → 2027-01-03Delta Air LinesDL2635 / DL135619:52:00→22:08:00 2h 16m nonstop · 10:41:00→13:00:00 2h 19m nonstopAxel-exclusive $343.002026-10-29T00:39:30Z
2026-12-21 → 2027-01-04Alaska AirlinesAS725 / AS59120:51:00→23:02:00 2h 11m nonstop · 07:00:00→09:16:00 2h 16m nonstopAxel-exclusive $329.002026-10-29T00:39:30Z
2026-12-21 → 2027-01-04Delta Air LinesDL2635 / DL303419:52:00→22:08:00 2h 16m nonstop · 10:41:00→13:00:00 2h 19m nonstopAxel-exclusive $343.002026-10-29T00:39:30Z

Hotels in San Francisco for these trips

Hotels: under a trip, hotels in San Francisco 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.

All hotels in San Francisco

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

2026-12-21 · one way · Axel-exclusive $175.00

  • Alaska Airlines AS725: SEA 2026-12-21 20:51:00 → SFO 2026-12-21 23:02:00; nonstop; 131 minutes. Local airport times.

2026-12-21 · one way · Axel-exclusive $182.00

  • Delta Air Lines DL2635: SEA 2026-12-21 19:52:00 → SFO 2026-12-21 22:08:00; nonstop; 136 minutes. Local airport times.

2026-12-21 → 2026-12-22 · Axel-exclusive $329.00

  • Alaska Airlines AS725: SEA 2026-12-21 20:51:00 → SFO 2026-12-21 23:02:00; nonstop; 131 minutes. Local airport times.
  • Alaska Airlines AS591: SFO 2026-12-22 21:26:00 → SEA 2026-12-22 23:44:00; nonstop; 138 minutes. Local airport times.

2026-12-21 → 2026-12-22 · Axel-exclusive $343.00

  • Delta Air Lines DL2635: SEA 2026-12-21 19:52:00 → SFO 2026-12-21 22:08:00; nonstop; 136 minutes. Local airport times.
  • Delta Air Lines DL3707: SFO 2026-12-22 17:56:00 → SEA 2026-12-22 20:24:00; nonstop; 148 minutes. Local airport times.

2026-12-21 → 2026-12-23 · Axel-exclusive $329.00

  • Alaska Airlines AS725: SEA 2026-12-21 20:51:00 → SFO 2026-12-21 23:02:00; nonstop; 131 minutes. Local airport times.
  • Alaska Airlines AS630: SFO 2026-12-23 14:37:00 → SEA 2026-12-23 16:52:00; nonstop; 135 minutes. Local airport times.

2026-12-21 → 2026-12-23 · Axel-exclusive $343.00

  • Delta Air Lines DL2635: SEA 2026-12-21 19:52:00 → SFO 2026-12-21 22:08:00; nonstop; 136 minutes. Local airport times.
  • Delta Air Lines DL1356: SFO 2026-12-23 10:41:00 → SEA 2026-12-23 13:00:00; nonstop; 139 minutes. Local airport times.

2026-12-21 → 2026-12-24 · Axel-exclusive $329.00

  • Alaska Airlines AS725: SEA 2026-12-21 20:51:00 → SFO 2026-12-21 23:02:00; nonstop; 131 minutes. Local airport times.
  • Alaska Airlines AS591: SFO 2026-12-24 07:00:00 → SEA 2026-12-24 09:16:00; nonstop; 136 minutes. Local airport times.

2026-12-21 → 2026-12-24 · Axel-exclusive $343.00

  • Delta Air Lines DL2635: SEA 2026-12-21 19:52:00 → SFO 2026-12-21 22:08:00; nonstop; 136 minutes. Local airport times.
  • Delta Air Lines DL1356: SFO 2026-12-24 10:41:00 → SEA 2026-12-24 13:00:00; nonstop; 139 minutes. Local airport times.

2026-12-21 → 2026-12-25 · Axel-exclusive $329.00

  • Alaska Airlines AS725: SEA 2026-12-21 20:51:00 → SFO 2026-12-21 23:02:00; nonstop; 131 minutes. Local airport times.
  • Alaska Airlines AS1327: SFO 2026-12-25 06:00:00 → SEA 2026-12-25 08:17:00; nonstop; 137 minutes. Local airport times.

2026-12-21 → 2026-12-25 · Axel-exclusive $343.00

  • Delta Air Lines DL2635: SEA 2026-12-21 19:52:00 → SFO 2026-12-21 22:08:00; nonstop; 136 minutes. Local airport times.
  • Delta Air Lines DL3707: SFO 2026-12-25 17:56:00 → SEA 2026-12-25 20:24:00; nonstop; 148 minutes. Local airport times.

2026-12-21 → 2026-12-27 · Axel-exclusive $329.00

  • Alaska Airlines AS725: SEA 2026-12-21 20:51:00 → SFO 2026-12-21 23:02:00; nonstop; 131 minutes. Local airport times.
  • Alaska Airlines AS1327: SFO 2026-12-27 06:00:00 → SEA 2026-12-27 08:17:00; nonstop; 137 minutes. Local airport times.

2026-12-21 → 2026-12-27 · Axel-exclusive $343.00

  • Delta Air Lines DL2635: SEA 2026-12-21 19:52:00 → SFO 2026-12-21 22:08:00; nonstop; 136 minutes. Local airport times.
  • Delta Air Lines DL1356: SFO 2026-12-27 10:41:00 → SEA 2026-12-27 13:00:00; nonstop; 139 minutes. Local airport times.

2026-12-21 → 2026-12-28 · Axel-exclusive $329.00

  • Alaska Airlines AS725: SEA 2026-12-21 20:51:00 → SFO 2026-12-21 23:02:00; nonstop; 131 minutes. Local airport times.
  • Alaska Airlines AS591: SFO 2026-12-28 07:00:00 → SEA 2026-12-28 09:16:00; nonstop; 136 minutes. Local airport times.

2026-12-21 → 2026-12-28 · Axel-exclusive $343.00

  • Delta Air Lines DL2635: SEA 2026-12-21 19:52:00 → SFO 2026-12-21 22:08:00; nonstop; 136 minutes. Local airport times.
  • Delta Air Lines DL3034: SFO 2026-12-28 10:41:00 → SEA 2026-12-28 13:00:00; nonstop; 139 minutes. Local airport times.

2026-12-21 → 2026-12-29 · Axel-exclusive $329.00

  • Alaska Airlines AS725: SEA 2026-12-21 20:51:00 → SFO 2026-12-21 23:02:00; nonstop; 131 minutes. Local airport times.
  • Alaska Airlines AS591: SFO 2026-12-29 21:26:00 → SEA 2026-12-29 23:44:00; nonstop; 138 minutes. Local airport times.

2026-12-21 → 2026-12-29 · Axel-exclusive $343.00

  • Delta Air Lines DL2635: SEA 2026-12-21 19:52:00 → SFO 2026-12-21 22:08:00; nonstop; 136 minutes. Local airport times.
  • Delta Air Lines DL3707: SFO 2026-12-29 17:56:00 → SEA 2026-12-29 20:24:00; nonstop; 148 minutes. Local airport times.

2026-12-21 → 2026-12-31 · Axel-exclusive $329.00

  • Alaska Airlines AS725: SEA 2026-12-21 20:51:00 → SFO 2026-12-21 23:02:00; nonstop; 131 minutes. Local airport times.
  • Alaska Airlines AS591: SFO 2026-12-31 07:00:00 → SEA 2026-12-31 09:16:00; nonstop; 136 minutes. Local airport times.

2026-12-21 → 2026-12-31 · Axel-exclusive $343.00

  • Delta Air Lines DL2635: SEA 2026-12-21 19:52:00 → SFO 2026-12-21 22:08:00; nonstop; 136 minutes. Local airport times.
  • Delta Air Lines DL1356: SFO 2026-12-31 10:41:00 → SEA 2026-12-31 13:00:00; nonstop; 139 minutes. Local airport times.

2026-12-21 → 2027-01-01 · Axel-exclusive $329.00

  • Alaska Airlines AS725: SEA 2026-12-21 20:51:00 → SFO 2026-12-21 23:02:00; nonstop; 131 minutes. Local airport times.
  • Alaska Airlines AS1327: SFO 2027-01-01 06:00:00 → SEA 2027-01-01 08:17:00; nonstop; 137 minutes. Local airport times.

2026-12-21 → 2027-01-01 · Axel-exclusive $343.00

  • Delta Air Lines DL2635: SEA 2026-12-21 19:52:00 → SFO 2026-12-21 22:08:00; nonstop; 136 minutes. Local airport times.
  • Delta Air Lines DL3707: SFO 2027-01-01 17:56:00 → SEA 2027-01-01 20:24:00; nonstop; 148 minutes. Local airport times.

2026-12-21 → 2027-01-02 · Axel-exclusive $329.00

  • Alaska Airlines AS725: SEA 2026-12-21 20:51:00 → SFO 2026-12-21 23:02:00; nonstop; 131 minutes. Local airport times.
  • Alaska Airlines AS1327: SFO 2027-01-02 06:00:00 → SEA 2027-01-02 08:17:00; nonstop; 137 minutes. Local airport times.

2026-12-21 → 2027-01-02 · Axel-exclusive $343.00

  • Delta Air Lines DL2635: SEA 2026-12-21 19:52:00 → SFO 2026-12-21 22:08:00; nonstop; 136 minutes. Local airport times.
  • Delta Air Lines DL4118: SFO 2027-01-02 14:20:00 → SEA 2027-01-02 16:44:00; nonstop; 144 minutes. Local airport times.

2026-12-21 → 2027-01-04 · Axel-exclusive $329.00

  • Alaska Airlines AS725: SEA 2026-12-21 20:51:00 → SFO 2026-12-21 23:02:00; nonstop; 131 minutes. Local airport times.
  • Alaska Airlines AS591: SFO 2027-01-04 07:00:00 → SEA 2027-01-04 09:16:00; nonstop; 136 minutes. Local airport times.

2026-12-21 → 2027-01-04 · Axel-exclusive $343.00

  • Delta Air Lines DL2635: SEA 2026-12-21 19:52:00 → SFO 2026-12-21 22:08:00; nonstop; 136 minutes. Local airport times.
  • Delta Air Lines DL3034: SFO 2027-01-04 10:41:00 → SEA 2027-01-04 13:00:00; nonstop; 139 minutes. Local airport times.

Explore this route

For AI assistants

  • This page: Seattle (SEA) to San Francisco (SFO) · Dec 21, 2026 · 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 San Francisco 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.
  • 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.