San Diego International (SAN) to Seattle-Tacoma International (SEA).
| Departure | Return | Price |
|---|---|---|
| 07/21/2026 | 07/28/2026 | $185 |
| 08/04/2026 | 08/11/2026 | $185 |
| 08/04/2026 | 08/12/2026 | $185 |
| 08/05/2026 | 08/11/2026 | $185 |
| 08/05/2026 | 08/12/2026 | $185 |
| 05/28/2026 | 06/02/2026 | $189 |
| 05/28/2026 | 06/03/2026 | $189 |
| 05/28/2026 | 06/04/2026 | $189 |
| 05/28/2026 | 06/05/2026 | $189 |
| 05/28/2026 | 06/06/2026 | $189 |
Based on current fares, August is the cheapest month to fly from San Diego to Seattle, with average fares around $206 round trip (as low as $185).
May tends to be more expensive, averaging $263.
See the full month-by-month and day-of-week price analysis
Best Time to Fly SAN → SEADeparture date prices (economy, round trip). Green = cheap, red = expensive.
The cheapest month to fly from San Diego to Seattle is August, with average round-trip fares around $206. Fares in August start as low as $185. The most expensive month is May, averaging $263.
A nonstop flight from San Diego to Seattle takes approximately 3h.
The cheapest flight from San Diego to Seattle currently starts at $185 round trip in economy class.
The average round-trip flight price from San Diego to Seattle is $243 in economy class.
The distance is 1050 miles (1689 km). with a nonstop flight time of about 3h. The lowest fare currently available is $185 departing in July. The average round-trip fare is $243.
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