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

San Jose → Seattle

Dec 4, 2026 · return Dec 9, 2026

SJC → SEA1 adulteconomyRound trip

8 flight options · 3 airlines

Nonstop flights

Fri, Dec 4 – Wed, Dec 9

Southwest Airlines
8:45 pmSJC
2h 25m
Nonstop
11:10 pmSEA
Southwest Airlines
8:05 amSEA
2h 15m
Nonstop
10:20 amSJC

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Fri, Dec 4 – Wed, Dec 9

Alaska Airlines
7:43 pmSJC
2h 22m
Nonstop
10:05 pmSEA
Alaska Airlines
7:50 pmSEA
2h 10m
Nonstop
10:00 pmSJC

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Fri, Dec 4 – Wed, Dec 9

Delta Air Lines
7:20 amSJC
2h 32m
Nonstop
9:52 amSEA
Delta Air Lines
8:30 amSEA
2h 23m
Nonstop
10:53 amSJC

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Fri, Dec 4 – Wed, Dec 9

Southwest Airlines
11:50 amSJC
2h 20m
Nonstop
2:10 pmSEA
Southwest Airlines
8:05 amSEA
2h 15m
Nonstop
10:20 amSJC

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Fri, Dec 4 – Wed, Dec 9

Delta Air Lines
2:42 pmSJC
2h 24m
Nonstop
5:06 pmSEA
Delta Air Lines
8:30 amSEA
2h 23m
Nonstop
10:53 amSJC

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

One-stop flights

Fri, Dec 4 – Wed, Dec 9

Alaska Airlines
7:35 pmSJC
2h 19m
Nonstop
9:54 pmSEA
Alaska Airlines
7:38 amSEA
5h 7m
PDX · 2h 10m
12:45 pmSJC

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Fri, Dec 4 – Wed, Dec 9

Alaska Airlines
7:40 amSJC
4h 29m
PDX · 1h 24m
12:09 pmSEA
Alaska Airlines
7:38 amSEA
5h 7m
PDX · 2h 10m
12:45 pmSJC

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Fri, Dec 4 – Wed, Dec 9

Alaska Airlines
5:08 pmSJC
5h 20m
BOI · 1h 52m
10:28 pmSEA
Alaska Airlines
7:38 amSEA
5h 7m
PDX · 2h 10m
12:45 pmSJC

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Make this trip yours

SJC ⇄ SEA

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 3, 2026 · Return optionsDec 5, 2026 · 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)
2026-12-04 → 2026-12-09Southwest AirlinesWN2612 / WN3105Axel-exclusive $249.002026-10-29T01:22:11Z
2026-12-04 → 2026-12-09Alaska AirlinesAS520 / AS1508Axel-exclusive $269.002026-10-29T01:22:11Z
2026-12-04 → 2026-12-09Delta Air LinesDL4041 / DL3736Axel-exclusive $279.002026-10-29T01:22:11Z
2026-12-04 → 2026-12-09Southwest AirlinesWN698 / WN3105Axel-exclusive $249.002026-10-29T01:22:11Z
2026-12-04 → 2026-12-09Delta Air LinesDL3789 / DL3736Axel-exclusive $279.002026-10-29T01:22:11Z
2026-12-04 → 2026-12-09Alaska AirlinesAS520 / AS2238 + AS719Axel-exclusive $289.002026-10-29T01:22:11Z
2026-12-04 → 2026-12-09Alaska AirlinesAS2438 + AS3217 / AS2238 + AS719Axel-exclusive $309.002026-10-29T01:22:11Z
2026-12-04 → 2026-12-09Alaska AirlinesAS3413 + AS2016 / AS2238 + AS719Axel-exclusive $309.002026-10-29T01:22:11Z

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

2026-12-04 → 2026-12-09 · Axel-exclusive $249.00

  • Southwest Airlines WN2612: SJC 2026-12-04 20:45:00 → SEA 2026-12-04 23:10:00; nonstop; 145 minutes. Local airport times.
  • Southwest Airlines WN3105: SEA 2026-12-09 08:05:00 → SJC 2026-12-09 10:20:00; nonstop; 135 minutes. Local airport times.

2026-12-04 → 2026-12-09 · Axel-exclusive $269.00

  • Alaska Airlines AS520: SJC 2026-12-04 19:43:00 → SEA 2026-12-04 22:05:00; nonstop; 142 minutes. Local airport times.
  • Alaska Airlines AS1508: SEA 2026-12-09 19:50:00 → SJC 2026-12-09 22:00:00; nonstop; 130 minutes. Local airport times.

2026-12-04 → 2026-12-09 · Axel-exclusive $279.00

  • Delta Air Lines DL4041: SJC 2026-12-04 07:20:00 → SEA 2026-12-04 09:52:00; nonstop; 152 minutes. Local airport times.
  • Delta Air Lines DL3736: SEA 2026-12-09 08:30:00 → SJC 2026-12-09 10:53:00; nonstop; 143 minutes. Local airport times.

2026-12-04 → 2026-12-09 · Axel-exclusive $249.00

  • Southwest Airlines WN698: SJC 2026-12-04 11:50:00 → SEA 2026-12-04 14:10:00; nonstop; 140 minutes. Local airport times.
  • Southwest Airlines WN3105: SEA 2026-12-09 08:05:00 → SJC 2026-12-09 10:20:00; nonstop; 135 minutes. Local airport times.

2026-12-04 → 2026-12-09 · Axel-exclusive $279.00

  • Delta Air Lines DL3789: SJC 2026-12-04 14:42:00 → SEA 2026-12-04 17:06:00; nonstop; 144 minutes. Local airport times.
  • Delta Air Lines DL3736: SEA 2026-12-09 08:30:00 → SJC 2026-12-09 10:53:00; nonstop; 143 minutes. Local airport times.

2026-12-04 → 2026-12-09 · Axel-exclusive $289.00

  • Alaska Airlines AS520: SJC 2026-12-04 19:35:00 → SEA 2026-12-04 21:54:00; nonstop; 139 minutes. Local airport times.
  • Alaska Airlines AS2238 / AS719: SEA 2026-12-09 07:38:00 → SJC 2026-12-09 12:45:00; 1 stop(s) via PDX; 307 minutes. Local airport times.
    • AS2238: SEA 2026-12-09 07:38:00 → PDX 2026-12-09 08:35:00; layover at PDX: 130 minutes.
    • AS719: PDX 2026-12-09 10:45:00 → SJC 2026-12-09 12:45:00.

2026-12-04 → 2026-12-09 · Axel-exclusive $309.00

  • Alaska Airlines AS2438 / AS3217: SJC 2026-12-04 07:40:00 → SEA 2026-12-04 12:09:00; 1 stop(s) via PDX; 269 minutes. Local airport times.
    • AS2438: SJC 2026-12-04 07:40:00 → PDX 2026-12-04 09:30:00; layover at PDX: 84 minutes.
    • AS3217: PDX 2026-12-04 10:54:00 → SEA 2026-12-04 12:09:00.
  • Alaska Airlines AS2238 / AS719: SEA 2026-12-09 07:38:00 → SJC 2026-12-09 12:45:00; 1 stop(s) via PDX; 307 minutes. Local airport times.
    • AS2238: SEA 2026-12-09 07:38:00 → PDX 2026-12-09 08:35:00; layover at PDX: 130 minutes.
    • AS719: PDX 2026-12-09 10:45:00 → SJC 2026-12-09 12:45:00.

2026-12-04 → 2026-12-09 · Axel-exclusive $309.00

  • Alaska Airlines AS3413 / AS2016: SJC 2026-12-04 17:08:00 → SEA 2026-12-04 22:28:00; 1 stop(s) via BOI; 320 minutes. Local airport times.
    • AS3413: SJC 2026-12-04 17:08:00 → BOI 2026-12-04 19:55:00; layover at BOI: 112 minutes.
    • AS2016: BOI 2026-12-04 21:47:00 → SEA 2026-12-04 22:28:00.
  • Alaska Airlines AS2238 / AS719: SEA 2026-12-09 07:38:00 → SJC 2026-12-09 12:45:00; 1 stop(s) via PDX; 307 minutes. Local airport times.
    • AS2238: SEA 2026-12-09 07:38:00 → PDX 2026-12-09 08:35:00; layover at PDX: 130 minutes.
    • AS719: PDX 2026-12-09 10:45:00 → SJC 2026-12-09 12:45:00.

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For AI assistants

  • This page: San Jose (SJC) to Seattle (SEA) · Dec 4, 2026 · return Dec 9, 2026: 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.