San Jose (United States) to Seattle flights
Routavio compares airline fares from several flight booking sites. The lowest one-way fare it found for San Jose to Seattle is €70 (checked on 24 Oct 2026).
Your next trip, last seen at €70
Lowest observedWhen to fly
Explore datesMore dates worth a look
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The lowest fare we observed for each month. Open a month to see its days, then pick your outbound and return. A day with no price is one we will search for you.
One-way fare
- Lowest observed
- €70, departing 28 Jan 2027 (Last checked: 24 Oct 2026)One-way fare · Priced departure days checked in the last 14 days: 10Check live prices for this route
- Round trip
- €126, departing 16 Dec 2026, back 24 Dec 2026 (Last checked: 30 Oct 2026)
- Non-stop, one way
- €70, departing 23 Feb 2027 (Last checked: 24 Oct 2026)
- Airlines seen
- Alaska Airlines, Delta Air Lines, Southwest Airlines
- Reported fastest flight
- 2h 11m
- Non-stop
- Yes
About this route
Explore the fares we observed from San Jose to Seattle. Prices move often, so pick your dates to see the latest options.
- Route distance
- 1,142 km
- Reported fastest flight
- 2h 11m
- Alternative airports
- BFI
Route-level information; individual journeys vary.
Published schedules report non-stop service with Alaska Airlines, Delta Air Lines, Southwest Airlines. Check current timetables.
A clearer picture of your fare
If the observed fare for this date drops, we will email you. At most one message a day.
Non-stop airlines seen on this route
| Airline | Non-stop days / priced days | Fastest non-stop |
|---|---|---|
| Alaska Airlines | 5 / 14 | |
| Delta Air Lines | 5 / 14 | |
| Southwest Airlines | 5 / 14 |
Departure days with a non-stop fare checked in the last 14 days. A carrier listed here had a non-stop fare on at least 3 days; schedules may differ.
Airport to city: straight-line distance
- King County International Airport - Boeing Field (BFI) → Seattle, city gazetteer reference point (47.6062, -122.3321): ≈ 9 km.
- Seattle–Tacoma International Airport (SEA) → Seattle, city gazetteer reference point (47.6062, -122.3321): ≈ 18 km.
Approximate distances calculated from coordinates, not road distances or travel times. These airports serve the city; they are not confirmed endpoints of an offer.
Lowest fare by days before departure
Lowest fare from San Jose to Seattle by days until departure (8 to 30 days): €117 (checked 30 Oct 2026).
| Days before departure | Lowest fare | Priced days |
|---|---|---|
| 0 to 7 days | €139 | 4 |
| 8 to 30 days | €117 | 6 |
One-way fares checked in the last 14 days. Each figure is the lowest stored fare for that distance to departure, not a price forecast.
Fares for different departure dates, checked now; not a guide to when to book.
Lowest one-way fare we saw per airline
Cheapest airline from San Jose to Seattle: Alaska Airlines, from €70 (checked 24 Oct 2026).
| Airline | Lowest fare | Priced days |
|---|---|---|
| Alaska Airlines | €70Nov 16, 2026 | 5 |
| Delta Air Lines | €70Nov 16, 2026 | 5 |
| Southwest Airlines | €70Nov 16, 2026 | 5 |
One-way fares checked in the last 14 days. An airline listed here had a fare on at least 3 departure days. Each figure is the lowest we saw, not a guaranteed fare. Connecting itineraries are included; the date is the departure day of that fare.
Frequently asked
How much is a flight from San Jose to Seattle?
The lowest fare Routavio has observed is €70, found on 24 Oct 2026. Prices move, so read it as a floor rather than a quote.
When is the cheapest month to fly from San Jose to Seattle?
In our observations January 2027 is the cheapest month so far, at €70.
Are there direct flights from San Jose to Seattle?
Yes. Published schedules report non-stop flights on this route with Alaska Airlines, Delta Air Lines, Southwest Airlines.
Which airlines fly from San Jose to Seattle?
Routavio has seen these carriers on the route: Alaska Airlines, Delta Air Lines, Southwest Airlines.
How many of the observed San Jose to Seattle fares were non-stop?
14 of the 17 fares we observed were non-stop; the rest included at least one stop. That describes our observations, not every flight that operates.
How much is a round trip from San Jose to Seattle?
Cheapest round trip: €126, departing 16 Dec 2026, back 24 Dec 2026 (checked 30 Oct 2026).
How much is a non-stop flight from San Jose to Seattle?
Cheapest non-stop one-way fare: €70, departing 23 Feb 2027 (checked 24 Oct 2026).
Which airlines had non-stop offers on at least 3 departure dates from San Jose to Seattle?
For San Jose to Seattle, examples of observed one-way non-stop offers checked within the last 14 days: Alaska Airlines (5), Delta Air Lines (5), Southwest Airlines (5). Each number counts distinct departure dates, not weekly flights; check current availability in search.
Which airline has the lowest fare from San Jose to Seattle?
Cheapest airline from San Jose to Seattle: Alaska Airlines, from €70 (checked 24 Oct 2026).
How observed prices work, what "No data" means and what a fare includes: Read the flight price guide · Price and schedule freshness on Routavio
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Recently observed fares. Prices may change.