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Cheap flights from San Diego to Seattle

Fares from $65 in December 2026. Compare every month below, then book with the site you like.

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Cheapest San Diego to Seattle fares by month

Lowest price per person found in recent searches. Prices change often and are checked when you book.

San Diego to Seattle at a glance

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Frequently asked questions

How much is a flight from San Diego to Seattle?
The cheapest fare we found recently is $65 per person, departing Dec 10 on Southwest. Prices change daily, so search your dates to see today's fares.
What is the cheapest month to fly from San Diego to Seattle?
December 2026 is currently the cheapest month, from $65. November 2026 is the most expensive, from $127.
Are there direct flights from San Diego to Seattle?
Yes. Recent searches found nonstop fares from $65.
Which airlines fly from San Diego to Seattle?
The cheapest recent fares on this route were on Frontier, Southwest.
How long is the flight from San Diego to Seattle?
San Diego and Seattle are about 1,052 miles apart, so a nonstop flight takes roughly 2h 45m. Flights with a stop take longer, depending on the connection.
How do I find the cheapest flight from San Diego to Seattle?
Search your dates on Gotoesy. We list fares from several booking sites sorted cheapest first, show nearby dates when your day has no saved fare, and send you straight to the seller to book.

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