£76 Cheap Flights from San Diego (SAN) to Seattle (SEA)

View £76 flight on Wed, 13 May 2026Opens in a new window

Popular airlines from San Diego Intl. Airport (SAN) to Seattle-Tacoma International Airport (SEA)

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Cheap Flights from San Diego (SAN) to Seattle (SEA)

Prices were available within the past 7 days and start at £76 for one-way flights and £124 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Tue, 12 May - Tue, 19 May
SAN
San Diego
SEA
Seattle
£124 Return, found 18 hours ago
£124
Return
found 18 hours ago
Select Alaska Airlines flight, departing Tue, 12 May from San Diego to Seattle, returning Tue, 19 May, priced at £124 found 18 hours ago
Alaska Airlines
Sat, 30 May - Tue, 2 Jun
SAN
San Diego
SEA
Seattle
£138 Return, found 6 days ago
£138
Return
found 6 days ago
Select Alaska Airlines flight, departing Sat, 30 May from San Diego to Seattle, returning Tue, 2 Jun, priced at £138 found 6 days ago
Alaska Airlines
Tue, 12 May - Tue, 19 May
SAN
San Diego
SEA
Seattle
£139 Return, found 18 hours ago
£139
Return
found 18 hours ago
Select Alaska Airlines flight, departing Tue, 12 May from San Diego to Seattle, returning Tue, 19 May, priced at £139 found 18 hours ago
Alaska Airlines
Fri, 15 May - Tue, 19 May
SAN
San Diego
SEA
Seattle
£143 Return, found 1 day ago
£143
Return
found 1 day ago
Select Alaska Airlines flight, departing Fri, 15 May from San Diego to Seattle, returning Tue, 19 May, priced at £143 found 1 day ago
Alaska Airlines
Sat, 2 May - Sun, 3 May
SAN
San Diego
SEA
Seattle
£156 Return, found 4 days ago
£156
Return
found 4 days ago
Select Alaska Airlines flight, departing Sat, 2 May from San Diego to Seattle, returning Sun, 3 May, priced at £156 found 4 days ago
Alaska Airlines
Tue, 12 May - Tue, 19 May
SAN
San Diego
SEA
Seattle
£157 Return, found 18 hours ago
£157
Return
found 18 hours ago
Select Alaska Airlines flight, departing Tue, 12 May from San Diego to Seattle, returning Tue, 19 May, priced at £157 found 18 hours ago
Delta
Tue, 28 Apr - Tue, 5 May
SAN
San Diego
SEA
Seattle
£188 Return, found 12 hours ago
£188
Return
found 12 hours ago
Select Delta flight, departing Tue, 28 Apr from San Diego to Seattle, returning Tue, 5 May, priced at £188 found 12 hours ago
United
Sun, 26 Apr - Mon, 27 Apr
SAN
San Diego
SEA
Seattle
£378 Return, found 12 hours ago
£378
Return
found 12 hours ago
Select United flight, departing Sun, 26 Apr from San Diego to Seattle, returning Mon, 27 Apr, priced at £378 found 12 hours ago
JetBlue Airways
Sat, 30 May - Tue, 2 Jun
SAN
San Diego
SEA
Seattle
£485 Return, found 6 days ago
£485
Return
found 6 days ago
Select JetBlue Airways flight, departing Sat, 30 May from San Diego to Seattle, returning Tue, 2 Jun, priced at £485 found 6 days ago
Hawaiian Airlines
Fri, 17 Apr - Sun, 19 Apr
SAN
San Diego
SEA
Seattle
£1,385 Return, found 3 hours ago
£1,385
Return
found 3 hours ago
Select Hawaiian Airlines flight, departing Fri, 17 Apr from San Diego to Seattle, returning Sun, 19 Apr, priced at £1,385 found 3 hours ago

Alternative airports near Seattle

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Seattle - Tacoma Intl. SEA. Cheapest option available. Average driving time to city centre is 20 minutes. Flights from £188
SEA
Seattle - Tacoma Intl.
Cheapest
Average driving time to city centre20 min
Flights from £188

Find the cheapest month to fly from San Diego (SAN) to Seattle (SEA)

May is typically the cheapest month to fly

From £75 - £174 per traveller.

Frequently asked questions

How much is a flight from San Diego Airport to Sea-Tac Airport?
Start packing your suitcase, because round-trip journeys from San Diego Intl. Airport (SAN) to Seattle - Tacoma Intl. Airport (SEA) start from £124. That's based on airfares available within the last 7 days on Expedia for flights departing within the next year. Prices can change quickly, so book today to get the best deal. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from SAN to Seattle - Tacoma Intl. Airport (SEA)?
This can differ between air carriers, as each one has its own set of terms and conditions. Visit the Customer Service Portal, where you'll find instructions on how to cancel online.
How do I find cheap flights from SAN to SEA that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for San Diego Intl. Airport (SAN) to SEA flights, you'll see a "no change fees" filter for you to select.
How far is the flight from SAN to SEA?
The flight distance from SAN to Sea-Tac Airport is 1,700 kilometres. Pack yourself a snack, a drink and a laptop filled with movies. Keep yourself entertained and the hours will zip by.
Which airlines fly direct from San Diego Airport to Seattle - Tacoma Intl. Airport (SEA)?
Many savvy travellers choose to fly with Alaska Airlines (AS) from San Diego Intl. Airport (SAN) to SEA. This popular airline offers 225 flights a month, so you can pick a flight time that's right for you. Operating 152 flights a month on this route, Delta Air Lines (DL) is another fantastic option.
Are SAN to Seattle - Tacoma Intl. Airport (SEA) flight tickets cheaper when they're purchased at the last minute?
It is possible to get amazing last-minute deals from SAN to Seattle - Tacoma Intl. Airport (SEA), but it's also possible to miss out altogether! As many airlines publish prices up to a year in advance, it's worth keeping an eye on fares early and being ready to pounce when you see a good bargain. Expedia compares carrier prices and updates flight deals frequently, so you can rest easy knowing you're always getting the latest offers.

Travel information

Origin airport
San Diego Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Alaska Airlines
Return price
£123
Distance
1681 km
Average flight time
3 hours 9 mins

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