Southwest AirlinesDepart07:00
Wed, Feb 3SEA → SAN
2h 40m · Direct
$65one way, per person
View deal
- Cheapest fare
- $65
- Cheapest month
- February
- Direct flights
- Yes
- Flight time
- 2h 40m
Southwest Airlines · Wed, Feb 3
from $65
Southwest Airlines
1,710 km
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Cheapest month to fly from Seattle to San Diego
Lowest one-way fare per person in each month. Choose a month to see every date.
Cheapest dates in February 2027
The lowest fares we've seen for each day, cheapest first.
Southwest AirlinesSouthwest AirlinesDepart18:40
Thu, Feb 4SEA → SAN
2h 40m · Direct
$71one way, per person
View deal
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About flights from Seattle to San Diego
Seattle (SEA) and San Diego (SAN) are about 1,710 km apart. Direct flights take around 2h 40m, and recent direct fares were with Southwest Airlines. Over the next few months, one-way fares start from $65, and February 2027 is currently the cheapest month to fly.
These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.
Frequently asked questions
How much is a flight from Seattle to San Diego?
The cheapest one-way fare we've seen recently is $65 with Southwest Airlines, departing Wednesday, February 3, 2027. Over the coming months, the lowest fare in each month ranges from $65 to $121.
What is the cheapest month to fly from Seattle to San Diego?
February 2027 currently has the lowest fares, from $65 one way.
Are there direct flights from Seattle to San Diego?
Yes. Recent direct fares were with Southwest Airlines.
How long is the flight from Seattle to San Diego?
A direct flight takes about 2h 40m. Seattle and San Diego are around 1,710 km apart.
Which airlines fly from Seattle to San Diego?
Recent fares on this route were with Frontier Airlines and Southwest Airlines.
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