A stunning twilight view of Seattle's skyline with illuminated skyscrapers and busy traffic below. — flights from San Diego to Seattle
San DiegoSeattle

Flights from San Diego to Seattle

Nonstop flights from San Diego (SAN) to Seattle (SEA) take about 2h 37m (1,692 km). Southwest Airlines and Alaska Airlines fly it. Lowest fare seen: $100 one-way, nonstop (22 Oct 2026).

All flights to Seattle →

Photo of Seattle: Stephen Leonardi on Pexels.

When you land in Seattle

The airport transfer and the few things worth sorting before you fly.

Alaska Airlines plane soaring through a bright sky with fluffy clouds in Seattle. — arriving in Seattle

Airport transfer

SEA → Seattle, booked before you fly

A private driver meets you in arrivals at a price agreed when you book. Book with Welcome Pickups.

See transfer prices
Before you flyAirport lounges at San Diego →1 lounge at San Diego AirportTrains, buses and taxi faresSEA to Seattle: getting into town →Early arrival or late flightLuggage storage in Seattle →10 drop-off points, from $4.90

Things to book in Seattle

All 22 things to do in Seattle →
from €3.57
Seattle Center Monorail 4.5 · 1,891 Tiqets reviews
Seattle Aquariumfrom €44.59
Seattle Aquarium 4.3 · 353 Tiqets reviews
Woodland Park Zoofrom €20.49
Woodland Park Zoo 4.6 · 143 Tiqets reviews
from €43.10
Seattle Sightseeing Cruises 4.6 · 61 Tiqets reviews

Find hotels in Seattle

Hotels, hostels & more · Expedia

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Airlines flying San Diego to Seattle

Carriers on SAN–SEA according to our route data and nonstop fares seen as of 22 Oct 2026. Not a complete list.

✈ Southwest Airlinesnonstop fare seen✈ Alaska Airlinesnonstop fare seen

San Diego to Seattle fares by month

Cheapest month seen for a nonstop flight: Dec 2026, from $100 one-way. With stops: Dec 2026, from $87. Lowest one-way fares seen for departures in each month, read 22 Oct 2026.

DepartingNonstop fromCheaper with stops
Oct 2026$28629 Oct 2026 · Southwest Airlines$176 · 1 stop29 Oct 2026
Nov 2026$10410 Nov 2026 · Southwest Airlines$89 · 1 stop12 Nov 2026
Dec 2026$1002 Dec 2026 · Southwest Airlines$87 · 1 stop5 Dec 2026

When to go for the lowest fare

Fares were close across the months we saw: $89 for November 2026, $87 at best after that.

Nonstop or with a stop

A connection undercut nonstop in 3 of 3 months with both fares.

From Travelpayouts flight-search data, city to city (San Diego to Seattle, any airport), USD, read 22 Oct 2026. These are fares that were on sale, not a guarantee of today's price; an airline is named only where we know it flies this route.

More for this trip

Frequently asked questions — San Diego to Seattle flights

How long is the flight from San Diego to Seattle?
A nonstop flight from San Diego (SAN) to Seattle (SEA) takes about 2h 37m, covering 1,692 km. That is an estimate from the distance — actual time varies with the airline, aircraft and winds, and connecting itineraries take longer.
How far is San Diego from Seattle by air?
The great-circle distance between San Diego International Airport and Seattle–Tacoma International Airport is 1,692 km (1,051 miles), a medium-haul route.
Which airlines fly from San Diego to Seattle?
Airlines with flights or nonstop fares on the SAN–SEA route include Southwest Airlines and Alaska Airlines. This is not a complete list — schedules change by season, so check the current options before booking.
How much does a flight from San Diego to Seattle cost?
The lowest one-way fare seen recently on SAN–SEA was $100 USD with Southwest Airlines (nonstop), departing 2 Dec 2026, found in fare searches as of 22 Oct 2026. Fares change constantly and depend on the date, so check the current price before booking.
What is the cheapest month to fly from San Diego to Seattle?
In fares seen on 22 Oct 2026, departures in December 2026 were cheapest, from $87 one-way, against $176 for October 2026, the dearest month. Fares change daily, so check your own dates.
Is it cheaper to fly nonstop or with a stop from San Diego to Seattle?
In the fares we saw (22 Oct 2026), connecting was cheaper: from $87 with one stop against $100 nonstop, a saving of $13. Nonstop saves the connection time.
Do I need a visa to travel from San Diego to Seattle?
It depends on your passport. Some nationalities can enter Seattle visa-free or get a visa on arrival; others must apply in advance. Use AirConnect's Visa Checker to see the rules for your passport.

Sources: fares from Travelpayouts flight-search data, seen 22 Oct 2026; airlines from each carrier's published network and nonstop fares on sale; distance from OurAirports coordinates; flight time estimated from distance. Fares change daily.

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