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

San Francisco → Seattle

Dec 13, 2026 · one way

SFO → SEA1 adulteconomyOne way

12 flight options · 4 airlines

Nonstop flights

Sun, Dec 13 · One way

Alaska Airlines
12:39 pmSFO
2h 16m
Nonstop
2:55 pmSEA

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sun, Dec 13 · One way

Delta Air Lines
2:19 pmSFO
2h 25m
Nonstop
4:44 pmSEA

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sun, Dec 13 · One way

United Airlines
4:12 pmSFO
2h 16m
Nonstop
6:28 pmSEA

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sun, Dec 13 · One way

Alaska Airlines
6:00 amSFO
2h 15m
Nonstop
8:15 amSEA

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sun, Dec 13 · One way

Delta Air Lines
10:41 amSFO
2h 19m
Nonstop
1:00 pmSEA

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sun, Dec 13 · One way

United Airlines
6:33 pmSFO
2h 14m
Nonstop
8:47 pmSEA

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

One-stop flights

Sun, Dec 13 · One way

American Airlines
2:07 pmSFO
7h 43m
LAX · 3h 2m
9:50 pmSEA

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sun, Dec 13 · One way

Alaska Airlines
2:39 pmSFO
5h 37m
LAS · 1h 9m
8:16 pmSEA

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sun, Dec 13 · One way

Alaska Airlines
1:39 pmSFO
7h 51m
PSP · 3h 15m
9:30 pmSEA

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sun, Dec 13 · One way

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

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sun, Dec 13 · One way

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

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sun, Dec 13 · One way

American Airlines
5:50 amSFO
8h 4m
PHX · 2h 28m
1:54 pmSEA

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

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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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

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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)
2026-12-13 · one wayAlaska AirlinesAS264Axel-exclusive $115.002026-10-29T01:19:49Z
2026-12-13 · one wayDelta Air LinesDL1412Axel-exclusive $120.002026-10-29T01:19:49Z
2026-12-13 · one wayUnited AirlinesUA2279Axel-exclusive $125.002026-10-29T01:19:49Z
2026-12-13 · one wayAmerican AirlinesAA6326 + AA6444Axel-exclusive $165.002026-10-29T01:19:49Z
2026-12-13 · one wayAlaska AirlinesAS1327Axel-exclusive $115.002026-10-29T01:19:49Z
2026-12-13 · one wayDelta Air LinesDL1356Axel-exclusive $120.002026-10-29T01:19:49Z
2026-12-13 · one wayUnited AirlinesUA1497Axel-exclusive $125.002026-10-29T01:19:49Z
2026-12-13 · one wayAlaska AirlinesAS776 + AS738Axel-exclusive $135.002026-10-29T01:19:49Z
2026-12-13 · one wayAlaska AirlinesAS3124 + AS295Axel-exclusive $135.002026-10-29T01:19:49Z
2026-12-13 · one wayUnited AirlinesUA2127 + UA726Axel-exclusive $155.002026-10-29T01:19:49Z
2026-12-13 · one wayUnited AirlinesUA2259 + AC8804Axel-exclusive $155.002026-10-29T01:19:49Z
2026-12-13 · one wayAmerican AirlinesAA6185 + AA2073Axel-exclusive $165.002026-10-29T01:19:49Z

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

2026-12-13 · one way · Axel-exclusive $115.00

  • Alaska Airlines AS264: SFO 2026-12-13 12:39:00 → SEA 2026-12-13 14:55:00; nonstop; 136 minutes. Local airport times.

2026-12-13 · one way · Axel-exclusive $120.00

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

2026-12-13 · one way · Axel-exclusive $125.00

  • United Airlines UA2279: SFO 2026-12-13 16:12:00 → SEA 2026-12-13 18:28:00; nonstop; 136 minutes. Local airport times.

2026-12-13 · one way · Axel-exclusive $165.00

  • American Airlines AA6326 / AA6444: SFO 2026-12-13 14:07:00 → SEA 2026-12-13 21:50:00; 1 stop(s) via LAX; 463 minutes. Local airport times.
    • AA6326: SFO 2026-12-13 14:07:00 → LAX 2026-12-13 15:40:00; layover at LAX: 182 minutes.
    • AA6444: LAX 2026-12-13 18:42:00 → SEA 2026-12-13 21:50:00.

2026-12-13 · one way · Axel-exclusive $115.00

  • Alaska Airlines AS1327: SFO 2026-12-13 06:00:00 → SEA 2026-12-13 08:15:00; nonstop; 135 minutes. Local airport times.

2026-12-13 · one way · Axel-exclusive $120.00

  • Delta Air Lines DL1356: SFO 2026-12-13 10:41:00 → SEA 2026-12-13 13:00:00; nonstop; 139 minutes. Local airport times.

2026-12-13 · one way · Axel-exclusive $125.00

  • United Airlines UA1497: SFO 2026-12-13 18:33:00 → SEA 2026-12-13 20:47:00; nonstop; 134 minutes. Local airport times.

2026-12-13 · one way · Axel-exclusive $135.00

  • Alaska Airlines AS776 / AS738: SFO 2026-12-13 14:39:00 → SEA 2026-12-13 20:16:00; 1 stop(s) via LAS; 337 minutes. Local airport times.
    • AS776: SFO 2026-12-13 14:39:00 → LAS 2026-12-13 16:16:00; layover at LAS: 69 minutes.
    • AS738: LAS 2026-12-13 17:25:00 → SEA 2026-12-13 20:16:00.

2026-12-13 · one way · Axel-exclusive $135.00

  • Alaska Airlines AS3124 / AS295: SFO 2026-12-13 13:39:00 → SEA 2026-12-13 21:30:00; 1 stop(s) via PSP; 471 minutes. Local airport times.
    • AS3124: SFO 2026-12-13 13:39:00 → PSP 2026-12-13 15:17:00; layover at PSP: 195 minutes.
    • AS295: PSP 2026-12-13 18:32:00 → SEA 2026-12-13 21:30:00.

2026-12-13 · one way · Axel-exclusive $155.00

  • 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.

2026-12-13 · one way · Axel-exclusive $155.00

  • 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.

2026-12-13 · one way · Axel-exclusive $165.00

  • American Airlines AA6185 / AA2073: SFO 2026-12-13 05:50:00 → SEA 2026-12-13 13:54:00; 1 stop(s) via PHX; 484 minutes. Local airport times.
    • AA6185: SFO 2026-12-13 05:50:00 → PHX 2026-12-13 09:02:00; layover at PHX: 148 minutes.
    • AA2073: PHX 2026-12-13 11:30:00 → SEA 2026-12-13 13:54:00.

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For AI assistants

  • This page: San Francisco (SFO) to Seattle (SEA) · Dec 13, 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 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. 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.