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

San Francisco → Seattle

Jan 3, 2027 · return Jan 13, 2027

SFO → SEA1 adulteconomyRound trip

12 flight options · 4 airlines

Nonstop flights

Sun, Jan 3 – Wed, Jan 13

Alaska Airlines
12:30 pmSFO
2h 17m
Nonstop
2:47 pmSEA
Alaska Airlines
7:20 amSEA
2h 18m
Nonstop
9:38 amSFO

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sun, Jan 3 – Wed, Jan 13

Delta Air Lines
10:41 amSFO
2h 19m
Nonstop
1:00 pmSEA
Delta Air Lines
7:20 amSEA
2h 31m
Nonstop
9:51 amSFO

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sun, Jan 3 – Wed, Jan 13

United Airlines
6:32 pmSFO
2h 8m
Nonstop
8:40 pmSEA
United Airlines
1:18 pmSEA
2h 17m
Nonstop
3:35 pmSFO

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sun, Jan 3 – Wed, Jan 13

Alaska Airlines
6:00 amSFO
2h 17m
Nonstop
8:17 amSEA
Alaska Airlines
7:20 amSEA
2h 18m
Nonstop
9:38 amSFO

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sun, Jan 3 – Wed, Jan 13

Delta Air Lines
2:19 pmSFO
2h 25m
Nonstop
4:44 pmSEA
Delta Air Lines
7:20 amSEA
2h 31m
Nonstop
9:51 amSFO

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sun, Jan 3 – Wed, Jan 13

United Airlines
4:17 pmSFO
2h 12m
Nonstop
6:29 pmSEA
United Airlines
1:18 pmSEA
2h 17m
Nonstop
3:35 pmSFO

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

One-stop flights

Sun, Jan 3 – Wed, Jan 13

American Airlines
2:07 pmSFO
7h 43m
LAX · 3h 2m
9:50 pmSEA
American Airlines
1:35 pmSEA
6h 52m
LAX · 2h 20m
8:27 pmSFO

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sun, Jan 3 – Wed, Jan 13

Alaska Airlines
2:39 pmSFO
5h 37m
LAS · 1h 9m
8:16 pmSEA
Alaska Airlines
7:20 amSEA
2h 18m
Nonstop
9:38 amSFO

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sun, Jan 3 – Wed, Jan 13

Alaska Airlines
1:39 pmSFO
7h 51m
PSP · 3h 15m
9:30 pmSEA
Alaska Airlines
7:20 amSEA
2h 18m
Nonstop
9:38 amSFO

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sun, Jan 3 – Wed, Jan 13

United Airlines
8:31 amSFO
6h 1m
YVR · 2h 30m
2:32 pmSEA
United Airlines
1:18 pmSEA
2h 17m
Nonstop
3:35 pmSFO

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sun, Jan 3 – Wed, Jan 13

United Airlines
5:50 amSFO
5h 36m
LAX · 1h 5m
11:26 amSEA
United Airlines
1:18 pmSEA
2h 17m
Nonstop
3:35 pmSFO

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sun, Jan 3 – Wed, Jan 13

American Airlines
5:50 amSFO
8h 4m
PHX · 2h 28m
1:54 pmSEA
American Airlines
1:35 pmSEA
6h 52m
LAX · 2h 20m
8:27 pmSFO

Round-trip 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

Explore this route

All dates for this routeJan 2, 2027 · Return optionsJan 4, 2027 · Return optionsHotels in Seattle 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)
2027-01-03 → 2027-01-13Alaska AirlinesAS656 / AS619Axel-exclusive $247.502026-10-29T01:19:49Z
2027-01-03 → 2027-01-13Delta Air LinesDL1356 / DL3888Axel-exclusive $258.752026-10-29T01:19:49Z
2027-01-03 → 2027-01-13United AirlinesUA2159 / UA737Axel-exclusive $270.002026-10-29T01:19:49Z
2027-01-03 → 2027-01-13American AirlinesAA6326 + AA6444 / AA4997 + AA6448Axel-exclusive $360.002026-10-29T01:19:49Z
2027-01-03 → 2027-01-13Alaska AirlinesAS1327 / AS619Axel-exclusive $247.502026-10-29T01:19:49Z
2027-01-03 → 2027-01-13Delta Air LinesDL1412 / DL3888Axel-exclusive $258.752026-10-29T01:19:49Z
2027-01-03 → 2027-01-13United AirlinesUA2279 / UA737Axel-exclusive $270.002026-10-29T01:19:49Z
2027-01-03 → 2027-01-13Alaska AirlinesAS776 + AS738 / AS619Axel-exclusive $272.502026-10-29T01:19:49Z
2027-01-03 → 2027-01-13Alaska AirlinesAS3124 + AS295 / AS619Axel-exclusive $272.502026-10-29T01:19:49Z
2027-01-03 → 2027-01-13United AirlinesUA2259 + AC8804 / UA737Axel-exclusive $307.502026-10-29T01:19:49Z
2027-01-03 → 2027-01-13United AirlinesUA2127 + UA726 / UA737Axel-exclusive $307.502026-10-29T01:19:49Z
2027-01-03 → 2027-01-13American AirlinesAA6185 + AA2073 / AA4997 + AA6448Axel-exclusive $360.002026-10-29T01:19:49Z

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

2027-01-03 → 2027-01-13 · Axel-exclusive $247.50

  • Alaska Airlines AS656: SFO 2027-01-03 12:30:00 → SEA 2027-01-03 14:47:00; nonstop; 137 minutes. Local airport times.
  • Alaska Airlines AS619: SEA 2027-01-13 07:20:00 → SFO 2027-01-13 09:38:00; nonstop; 138 minutes. Local airport times.

2027-01-03 → 2027-01-13 · Axel-exclusive $258.75

  • Delta Air Lines DL1356: SFO 2027-01-03 10:41:00 → SEA 2027-01-03 13:00:00; nonstop; 139 minutes. Local airport times.
  • Delta Air Lines DL3888: SEA 2027-01-13 07:20:00 → SFO 2027-01-13 09:51:00; nonstop; 151 minutes. Local airport times.

2027-01-03 → 2027-01-13 · Axel-exclusive $270.00

  • United Airlines UA2159: SFO 2027-01-03 18:32:00 → SEA 2027-01-03 20:40:00; nonstop; 128 minutes. Local airport times.
  • United Airlines UA737: SEA 2027-01-13 13:18:00 → SFO 2027-01-13 15:35:00; nonstop; 137 minutes. Local airport times.

2027-01-03 → 2027-01-13 · Axel-exclusive $360.00

  • American Airlines AA6326 / AA6444: SFO 2027-01-03 14:07:00 → SEA 2027-01-03 21:50:00; 1 stop(s) via LAX; 463 minutes. Local airport times.
    • AA6326: SFO 2027-01-03 14:07:00 → LAX 2027-01-03 15:40:00; layover at LAX: 182 minutes.
    • AA6444: LAX 2027-01-03 18:42:00 → SEA 2027-01-03 21:50:00.
  • American Airlines AA4997 / AA6448: SEA 2027-01-13 13:35:00 → SFO 2027-01-13 20:27:00; 1 stop(s) via LAX; 412 minutes. Local airport times.
    • AA4997: SEA 2027-01-13 13:35:00 → LAX 2027-01-13 16:31:00; layover at LAX: 140 minutes.
    • AA6448: LAX 2027-01-13 18:51:00 → SFO 2027-01-13 20:27:00.

2027-01-03 → 2027-01-13 · Axel-exclusive $247.50

  • Alaska Airlines AS1327: SFO 2027-01-03 06:00:00 → SEA 2027-01-03 08:17:00; nonstop; 137 minutes. Local airport times.
  • Alaska Airlines AS619: SEA 2027-01-13 07:20:00 → SFO 2027-01-13 09:38:00; nonstop; 138 minutes. Local airport times.

2027-01-03 → 2027-01-13 · Axel-exclusive $258.75

  • Delta Air Lines DL1412: SFO 2027-01-03 14:19:00 → SEA 2027-01-03 16:44:00; nonstop; 145 minutes. Local airport times.
  • Delta Air Lines DL3888: SEA 2027-01-13 07:20:00 → SFO 2027-01-13 09:51:00; nonstop; 151 minutes. Local airport times.

2027-01-03 → 2027-01-13 · Axel-exclusive $270.00

  • United Airlines UA2279: SFO 2027-01-03 16:17:00 → SEA 2027-01-03 18:29:00; nonstop; 132 minutes. Local airport times.
  • United Airlines UA737: SEA 2027-01-13 13:18:00 → SFO 2027-01-13 15:35:00; nonstop; 137 minutes. Local airport times.

2027-01-03 → 2027-01-13 · Axel-exclusive $272.50

  • Alaska Airlines AS776 / AS738: SFO 2027-01-03 14:39:00 → SEA 2027-01-03 20:16:00; 1 stop(s) via LAS; 337 minutes. Local airport times.
    • AS776: SFO 2027-01-03 14:39:00 → LAS 2027-01-03 16:16:00; layover at LAS: 69 minutes.
    • AS738: LAS 2027-01-03 17:25:00 → SEA 2027-01-03 20:16:00.
  • Alaska Airlines AS619: SEA 2027-01-13 07:20:00 → SFO 2027-01-13 09:38:00; nonstop; 138 minutes. Local airport times.

2027-01-03 → 2027-01-13 · Axel-exclusive $272.50

  • Alaska Airlines AS3124 / AS295: SFO 2027-01-03 13:39:00 → SEA 2027-01-03 21:30:00; 1 stop(s) via PSP; 471 minutes. Local airport times.
    • AS3124: SFO 2027-01-03 13:39:00 → PSP 2027-01-03 15:17:00; layover at PSP: 195 minutes.
    • AS295: PSP 2027-01-03 18:32:00 → SEA 2027-01-03 21:30:00.
  • Alaska Airlines AS619: SEA 2027-01-13 07:20:00 → SFO 2027-01-13 09:38:00; nonstop; 138 minutes. Local airport times.

2027-01-03 → 2027-01-13 · Axel-exclusive $307.50

  • United Airlines UA2259 / AC8804: SFO 2027-01-03 08:31:00 → SEA 2027-01-03 14:32:00; 1 stop(s) via YVR; 361 minutes. Local airport times.
    • UA2259: SFO 2027-01-03 08:31:00 → YVR 2027-01-03 12:00:00; layover at YVR: 150 minutes.
    • AC8804: YVR 2027-01-03 14:30:00 → SEA 2027-01-03 14:32:00.
  • United Airlines UA737: SEA 2027-01-13 13:18:00 → SFO 2027-01-13 15:35:00; nonstop; 137 minutes. Local airport times.

2027-01-03 → 2027-01-13 · Axel-exclusive $307.50

  • United Airlines UA2127 / UA726: SFO 2027-01-03 05:50:00 → SEA 2027-01-03 11:26:00; 1 stop(s) via LAX; 336 minutes. Local airport times.
    • UA2127: SFO 2027-01-03 05:50:00 → LAX 2027-01-03 07:22:00; layover at LAX: 65 minutes.
    • UA726: LAX 2027-01-03 08:27:00 → SEA 2027-01-03 11:26:00.
  • United Airlines UA737: SEA 2027-01-13 13:18:00 → SFO 2027-01-13 15:35:00; nonstop; 137 minutes. Local airport times.

2027-01-03 → 2027-01-13 · Axel-exclusive $360.00

  • American Airlines AA6185 / AA2073: SFO 2027-01-03 05:50:00 → SEA 2027-01-03 13:54:00; 1 stop(s) via PHX; 484 minutes. Local airport times.
    • AA6185: SFO 2027-01-03 05:50:00 → PHX 2027-01-03 09:02:00; layover at PHX: 148 minutes.
    • AA2073: PHX 2027-01-03 11:30:00 → SEA 2027-01-03 13:54:00.
  • American Airlines AA4997 / AA6448: SEA 2027-01-13 13:35:00 → SFO 2027-01-13 20:27:00; 1 stop(s) via LAX; 412 minutes. Local airport times.
    • AA4997: SEA 2027-01-13 13:35:00 → LAX 2027-01-13 16:31:00; layover at LAX: 140 minutes.
    • AA6448: LAX 2027-01-13 18:51:00 → SFO 2027-01-13 20:27:00.

Travelers: prices on this page are totals for 1 adult. For a different party, open this trip for 2 adults · 3 adults · 4 adults · 2 adults + 1 child · 2 adults + 2 children; each link opens AI flight search for these dates and those travelers, and the customer link to share comes from those results.

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For AI assistants

  • This page: San Francisco (SFO) to Seattle (SEA) · Jan 3, 2027 · return Jan 13, 2027: 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.