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

San Francisco → Seattle

Jun 26, 2027 · return Jun 29, 2027

SFO → SEA1 adulteconomyRound trip

12 flight options · 6 airlines

Nonstop flights

Sat, Jun 26 – Tue, Jun 29

Alaska Airlines
7:15 pmSFO
2h 15m
Nonstop
9:30 pmSEA
Alaska Airlines
1:50 pmSEA
2h 11m
Nonstop
4:01 pmSFO

Round-trip total · 1 adult · Taxes included

Sat, Jun 26 – Tue, Jun 29

Delta Air Lines
6:17 amSFO
2h 18m
Nonstop
8:35 amSEA
Delta Air Lines
3:10 pmSEA
2h 18m
Nonstop
5:28 pmSFO

Round-trip total · 1 adult · Taxes included

Sat, Jun 26 – Tue, Jun 29

United Airlines
12:15 pmSFO
2h 11m
Nonstop
2:26 pmSEA
United Airlines
7:30 pmSEA
2h 12m
Nonstop
9:42 pmSFO

Round-trip total · 1 adult · Taxes included

Sat, Jun 26 – Tue, Jun 29

Alaska Airlines
5:50 pmSFO
2h 14m
Nonstop
8:04 pmSEA
Alaska Airlines
7:33 pmSEA
2h 10m
Nonstop
9:43 pmSFO

Round-trip total · 1 adult · Taxes included

Sat, Jun 26 – Tue, Jun 29

Delta Air Lines
2:20 pmSFO
2h 24m
Nonstop
4:44 pmSEA
Delta Air Lines
3:10 pmSEA
2h 18m
Nonstop
5:28 pmSFO

Round-trip total · 1 adult · Taxes included

Sat, Jun 26 – Tue, Jun 29

United Airlines
6:32 pmSFO
2h 8m
Nonstop
8:40 pmSEA
United Airlines
7:30 pmSEA
2h 12m
Nonstop
9:42 pmSFO

Round-trip total · 1 adult · Taxes included

One-stop flights

Sat, Jun 26 – Tue, Jun 29

Frontier Airlines
6:02 amSFO
9h 10m
DEN · 3h 24m
3:12 pmSEA
Frontier Airlines
1:36 pmSEA
6h 32m
LAX · 2h 22m
8:08 pmSFO

Round-trip total · 1 adult · Taxes included

Sat, Jun 26 – Tue, Jun 29

American Airlines
7:00 amSFO
6h
LAX · 1h 17m
1:00 pmSEA
American Airlines
1:35 pmSEA
6h 52m
LAX · 2h 20m
8:27 pmSFO

Round-trip total · 1 adult · Taxes included

Sat, Jun 26 – Tue, Jun 29

Air Canada
2:45 pmSFO
7h 12m
YVR · 3h 45m
9:57 pmSEA
Air Canada
3:15 pmSEA
6h 27m
YVR · 2h 49m
9:42 pmSFO

Round-trip total · 1 adult · Taxes included

Sat, Jun 26 – Tue, Jun 29

Alaska Airlines
7:40 amSFO
4h 29m
PDX · 1h 27m
12:09 pmSEA
Alaska Airlines
7:33 pmSEA
2h 10m
Nonstop
9:43 pmSFO

Round-trip total · 1 adult · Taxes included

Sat, Jun 26 – Tue, Jun 29

United Airlines
8:31 amSFO
6h 1m
YVR · 2h 30m
2:32 pmSEA
United Airlines
7:30 pmSEA
2h 12m
Nonstop
9:42 pmSFO

Round-trip total · 1 adult · Taxes included

Sat, Jun 26 – Tue, Jun 29

United Airlines
5:50 amSFO
5h 36m
LAX · 1h 5m
11:26 amSEA
United Airlines
7:30 pmSEA
2h 12m
Nonstop
9:42 pmSFO

Round-trip 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.

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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 routeJun 25, 2027 · Return optionsJun 27, 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)
2027-06-26 → 2027-06-29Alaska AirlinesAS620 / AS688Axel-exclusive $285.002026-10-29T01:19:49Z
2027-06-26 → 2027-06-29Delta Air LinesDL2721 / DL3707Axel-exclusive $295.002026-10-29T01:19:49Z
2027-06-26 → 2027-06-29United AirlinesUA1264 / UA737Axel-exclusive $305.002026-10-29T01:19:49Z
2027-06-26 → 2027-06-29Frontier AirlinesF91230 + F91175 / F92176 + F94593Axel-exclusive $220.002026-10-29T01:19:49Z
2027-06-26 → 2027-06-29American AirlinesAA2211 + AA4997 / AA4997 + AA6448Axel-exclusive $380.002026-10-29T01:19:49Z
2027-06-26 → 2027-06-29Air CanadaAC567 + AC8810 / AC8807 + UA1083Axel-exclusive $480.002026-10-29T01:19:49Z
2027-06-26 → 2027-06-29Alaska AirlinesAS620 / AS619Axel-exclusive $285.002026-10-29T01:19:49Z
2027-06-26 → 2027-06-29Delta Air LinesDL4118 / DL3707Axel-exclusive $295.002026-10-29T01:19:49Z
2027-06-26 → 2027-06-29United AirlinesUA2159 / UA737Axel-exclusive $305.002026-10-29T01:19:49Z
2027-06-26 → 2027-06-29Alaska AirlinesAS1410 + AS3217 / AS619Axel-exclusive $305.002026-10-29T01:19:49Z
2027-06-26 → 2027-06-29United AirlinesUA2259 + AC8804 / UA737Axel-exclusive $335.002026-10-29T01:19:49Z
2027-06-26 → 2027-06-29United AirlinesUA2127 + UA726 / UA737Axel-exclusive $335.002026-10-29T01:19:49Z

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

2027-06-26 → 2027-06-29 · Axel-exclusive $285.00

  • Alaska Airlines AS620: SFO 2027-06-26 19:15:00 → SEA 2027-06-26 21:30:00; nonstop; 135 minutes. Local airport times.
  • Alaska Airlines AS688: SEA 2027-06-29 13:50:00 → SFO 2027-06-29 16:01:00; nonstop; 131 minutes. Local airport times.

2027-06-26 → 2027-06-29 · Axel-exclusive $295.00

  • Delta Air Lines DL2721: SFO 2027-06-26 06:17:00 → SEA 2027-06-26 08:35:00; nonstop; 138 minutes. Local airport times.
  • Delta Air Lines DL3707: SEA 2027-06-29 15:10:00 → SFO 2027-06-29 17:28:00; nonstop; 138 minutes. Local airport times.

2027-06-26 → 2027-06-29 · Axel-exclusive $305.00

  • United Airlines UA1264: SFO 2027-06-26 12:15:00 → SEA 2027-06-26 14:26:00; nonstop; 131 minutes. Local airport times.
  • United Airlines UA737: SEA 2027-06-29 19:30:00 → SFO 2027-06-29 21:42:00; nonstop; 132 minutes. Local airport times.

2027-06-26 → 2027-06-29 · Axel-exclusive $220.00

  • Frontier Airlines F91230 / F91175: SFO 2027-06-26 06:02:00 → SEA 2027-06-26 15:12:00; 1 stop(s) via DEN; 550 minutes. Local airport times.
    • F91230: SFO 2027-06-26 06:02:00 → DEN 2027-06-26 09:40:00; layover at DEN: 204 minutes.
    • F91175: DEN 2027-06-26 13:04:00 → SEA 2027-06-26 15:12:00.
  • Frontier Airlines F92176 / F94593: SEA 2027-06-29 13:36:00 → SFO 2027-06-29 20:08:00; 1 stop(s) via LAX; 392 minutes. Local airport times.
    • F92176: SEA 2027-06-29 13:36:00 → LAX 2027-06-29 16:18:00; layover at LAX: 142 minutes.
    • F94593: LAX 2027-06-29 18:40:00 → SFO 2027-06-29 20:08:00.

2027-06-26 → 2027-06-29 · Axel-exclusive $380.00

  • American Airlines AA2211 / AA4997: SFO 2027-06-26 07:00:00 → SEA 2027-06-26 13:00:00; 1 stop(s) via LAX; 360 minutes. Local airport times.
    • AA2211: SFO 2027-06-26 07:00:00 → LAX 2027-06-26 08:37:00; layover at LAX: 77 minutes.
    • AA4997: LAX 2027-06-26 09:54:00 → SEA 2027-06-26 13:00:00.
  • American Airlines AA4997 / AA6448: SEA 2027-06-29 13:35:00 → SFO 2027-06-29 20:27:00; 1 stop(s) via LAX; 412 minutes. Local airport times.
    • AA4997: SEA 2027-06-29 13:35:00 → LAX 2027-06-29 16:31:00; layover at LAX: 140 minutes.
    • AA6448: LAX 2027-06-29 18:51:00 → SFO 2027-06-29 20:27:00.

2027-06-26 → 2027-06-29 · Axel-exclusive $480.00

  • Air Canada AC567 / AC8810: SFO 2027-06-26 14:45:00 → SEA 2027-06-26 21:57:00; 1 stop(s) via YVR; 432 minutes. Local airport times.
    • AC567: SFO 2027-06-26 14:45:00 → YVR 2027-06-26 17:05:00; layover at YVR: 225 minutes.
    • AC8810: YVR 2027-06-26 20:50:00 → SEA 2027-06-26 21:57:00.
  • Air Canada AC8807 / UA1083: SEA 2027-06-29 15:15:00 → SFO 2027-06-29 21:42:00; 1 stop(s) via YVR; 387 minutes. Local airport times.
    • AC8807: SEA 2027-06-29 15:15:00 → YVR 2027-06-29 16:26:00; layover at YVR: 169 minutes.
    • UA1083: YVR 2027-06-29 19:15:00 → SFO 2027-06-29 21:42:00.

2027-06-26 → 2027-06-29 · Axel-exclusive $285.00

  • Alaska Airlines AS620: SFO 2027-06-26 17:50:00 → SEA 2027-06-26 20:04:00; nonstop; 134 minutes. Local airport times.
  • Alaska Airlines AS619: SEA 2027-06-29 19:33:00 → SFO 2027-06-29 21:43:00; nonstop; 130 minutes. Local airport times.

2027-06-26 → 2027-06-29 · Axel-exclusive $295.00

  • Delta Air Lines DL4118: SFO 2027-06-26 14:20:00 → SEA 2027-06-26 16:44:00; nonstop; 144 minutes. Local airport times.
  • Delta Air Lines DL3707: SEA 2027-06-29 15:10:00 → SFO 2027-06-29 17:28:00; nonstop; 138 minutes. Local airport times.

2027-06-26 → 2027-06-29 · Axel-exclusive $305.00

  • United Airlines UA2159: SFO 2027-06-26 18:32:00 → SEA 2027-06-26 20:40:00; nonstop; 128 minutes. Local airport times.
  • United Airlines UA737: SEA 2027-06-29 19:30:00 → SFO 2027-06-29 21:42:00; nonstop; 132 minutes. Local airport times.

2027-06-26 → 2027-06-29 · Axel-exclusive $305.00

  • Alaska Airlines AS1410 / AS3217: SFO 2027-06-26 07:40:00 → SEA 2027-06-26 12:09:00; 1 stop(s) via PDX; 269 minutes. Local airport times.
    • AS1410: SFO 2027-06-26 07:40:00 → PDX 2027-06-26 09:27:00; layover at PDX: 87 minutes.
    • AS3217: PDX 2027-06-26 10:54:00 → SEA 2027-06-26 12:09:00.
  • Alaska Airlines AS619: SEA 2027-06-29 19:33:00 → SFO 2027-06-29 21:43:00; nonstop; 130 minutes. Local airport times.

2027-06-26 → 2027-06-29 · Axel-exclusive $335.00

  • United Airlines UA2259 / AC8804: SFO 2027-06-26 08:31:00 → SEA 2027-06-26 14:32:00; 1 stop(s) via YVR; 361 minutes. Local airport times.
    • UA2259: SFO 2027-06-26 08:31:00 → YVR 2027-06-26 11:00:00; layover at YVR: 150 minutes.
    • AC8804: YVR 2027-06-26 13:30:00 → SEA 2027-06-26 14:32:00.
  • United Airlines UA737: SEA 2027-06-29 19:30:00 → SFO 2027-06-29 21:42:00; nonstop; 132 minutes. Local airport times.

2027-06-26 → 2027-06-29 · Axel-exclusive $335.00

  • United Airlines UA2127 / UA726: SFO 2027-06-26 05:50:00 → SEA 2027-06-26 11:26:00; 1 stop(s) via LAX; 336 minutes. Local airport times.
    • UA2127: SFO 2027-06-26 05:50:00 → LAX 2027-06-26 07:22:00; layover at LAX: 65 minutes.
    • UA726: LAX 2027-06-26 08:27:00 → SEA 2027-06-26 11:26:00.
  • United Airlines UA737: SEA 2027-06-29 19:30:00 → SFO 2027-06-29 21:42:00; nonstop; 132 minutes. Local airport times.

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For AI assistants

  • This page: San Francisco (SFO) to Seattle (SEA) · Jun 26, 2027 · return Jun 29, 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. Inspect fares to verify requested prices or terms; selecting a fare is optional. Use that fare’s booking link to preserve its Membership price basis. State anything unverified. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and explain what remains unresolved. Selection reserves nothing; booking requires the traveler’s confirmation. 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.