Seattle to San Diego flights
Round trip · Economy · Prices per person in USD
Prices updated
Buy now or wait? We're still learning this route. We have 1 day of prices so far and need about a week to say whether to book or wait.
Not ready to book? Get an email when Seattle → San Diego drops below your price.Cheapest round trip by month
Lowest fare found per departure month| Month | Cheapest round trip |
|---|---|
| September 2026 | No fares found yet |
| October 2026 | $188 (cheapest month) |
| November 2026 | $197 |
Cheapest dates in the next 4 months
Round trip, per person-
Oct 25 – 30 5 nights · leave Sun$188$188 Book
Southwest Airlines Nonstop · 2h 50m -
Nov 26 – Dec 4 8 nights · leave Thu$197$197 Book
Frontier Airlines 1 stop · 4h 10m
Prices change often. The booking site shows the final price before you pay. Other dates? Set an alert
Things to do in San Diego
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Plan the rest of your trip
San Diego · Oct 25 – 30Travel insurance · EKTA Airport transfer · Kiwitaxi
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Flights to San Diego from other cities
All flights to San Diego Flying the other way? San Diego to Seattle from $162
Seattle to San Diego: questions
How much is a flight from Seattle to San Diego?
The cheapest round trip we have found right now is $188, leaving October 25 and returning October 30. Prices are per person, economy, in USD.
About this route
We track round-trip economy fares from Seattle (United States) to San Diego (United States) using Travelpayouts / Aviasales data. The cheapest round trip we've found is $188, departing October 25 and returning October 30 on a nonstop flight. The cheapest month to fly in our data is October, from $188. Prices are per person and were correct when found; the final price is set by the airline or booking site when you book.