# Seattle to San Diego flights

Page: https://www.routavio.com/flights/seattle-to-san-diego

## About this route

Explore the fares we observed from Seattle to San Diego. Prices move often, so pick your dates to see the latest options.

- Route distance: 1,712 km
- Fastest observed flight time: 2h 40m
- Airlines seen: Alaska Airlines, Delta Air Lines, Southwest Airlines, American Airlines, Frontier Airlines
- Alternative airports: BFI, CLD

- Cheapest checked fare: €60 one way (checked 5 Nov 2026, departing 11 Dec 2026)
- Checked fares: €60 - €155
- Cheapest month seen: December 2026 (from €60); dearest month seen: March 2027 (from €70)

## Frequently asked

### How much is a flight from Seattle to San Diego?

The lowest fare Routavio has observed is €60, found on 5 Nov 2026. Prices move, so read it as a floor rather than a quote.

### When is the cheapest month to fly from Seattle to San Diego?

In our observations December 2026 is the cheapest month so far, at €60.

### Are there direct flights from Seattle to San Diego?

Yes. Published schedules report non-stop flights on this route with Alaska Airlines, Delta Air Lines, Southwest Airlines.

### Which airlines fly from Seattle to San Diego?

Routavio has seen these carriers on the route: Alaska Airlines, Delta Air Lines, Southwest Airlines, American Airlines, Frontier Airlines.

### How long does the flight from Seattle to San Diego take?

Across the 55 fares Routavio observed, the average journey time is 5h 20m, including any stops. Individual departures vary; the fastest observed flight is listed in the route facts above.

### How many of the observed Seattle to San Diego fares were non-stop?

32 of the 59 fares we observed were non-stop; the rest included at least one stop. That describes our observations, not every flight that operates.

Route data last updated by Routavio on 6 November 2026