San Diego to Seattle flights
Round trip · Economy · Prices per person in USD
Prices updated
Prices are low right now
$162 is $98 (38%) below the usual $260 for San Diego → Seattle.
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 San Diego → Seattle 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 | $225 |
| November 2026 | $162 (cheapest month) |
Cheapest dates in the next 4 months
Round trip, per person-
Nov 16 – 18 2 nights · leave Mon$162 −38% vs usual$162 −38% vs usual Book
Southwest Airlines Nonstop · 3h 10m -
Oct 13 – 19 6 nights · leave Tue$225 −13% vs usual$225 −13% vs usual Book
Southwest Airlines Nonstop · 3h 05m
-
Nov 24 – 30 6 nights · leave Tue$295 +13% vs usual$295 +13% vs usual Book
Frontier Airlines 1 stop · 5h 42m -
Nov 20 – 24 4 nights · leave Fri$320 +23% vs usual$320 +23% vs usual Book
Alaska Airlines Nonstop · 3h 10m -
Nov 22 – 29 7 nights · leave Sun$342 +32% vs usual$342 +32% vs usual Book
Alaska Airlines 1 stop · 3h 14m
-
Nov 25 – 29 4 nights · leave Wed$352 +35% vs usual$352 +35% vs usual Book
Frontier Airlines 1 stop · 4h 27m
Prices change often. The booking site shows the final price before you pay. Other dates? Set an alert
Things to do in Seattle
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Airport transfer to Seattle
Fixed prices from SEA on KiwitaxiTo see transfer prices here, turn on partner content in .
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Plan the rest of your trip
Seattle · Nov 16 – 18Travel insurance · EKTA Airport transfer · Kiwitaxi
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Good to know
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Flights to Seattle from other cities
All flights to Seattle Flying the other way? Seattle to San Diego from $188
San Diego to Seattle: questions
How much is a flight from San Diego to Seattle?
The cheapest round trip we have found right now is $162, leaving November 16 and returning November 18. The usual price on this route is about $260, so this fare is 38% less. Prices are per person, economy, in USD.
About this route
We track round-trip economy fares from San Diego (United States) to Seattle (United States) using Travelpayouts / Aviasales data. The cheapest round trip we've found is $162, departing November 16 and returning November 18 on a nonstop flight, about 38% below the usual $260. Right now we're following 6 upcoming date combinations on this route. The cheapest month to fly in our data is November, from $162. Prices are per person and were correct when found; the final price is set by the airline or booking site when you book.