Cheap flights from San Diego, CA to Seattle, WA

Flights starting at $59. Choose between Alaska Airlines, Frontier Airlines, or Spirit Airlines to find the best price.

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Travelers usually depart from San Diego International, or McClellan–Palomar when they travel from San Diego to Seattle. Book your trip to arrive at Seattle–Tacoma International, or Kenmore Air Harbor Seaplane Base. The distance between San Diego and Seattle is 1694 km. The most popular airlines for this route are Alaska Airlines, Frontier Airlines, and Spirit Airlines. San Diego and Seattle have 71 direct flights per week.

Weekly direct flights

Discover the top airlines offering direct flights from San Diego to Seattle in the next month. You’ll find the number of daily direct flights per airline in the table.

Weekly direct flights for Sun 14.04 - Sat 20.04

AirlineSun 14.04Mon 15.04Tue 16.04Wed 17.04Thu 18.04Fri 19.04Sat 20.04
3766946

Weekly direct flights for Sun 21.04 - Sat 27.04

AirlineSun 21.04Mon 22.04Tue 23.04Wed 24.04Thu 25.04Fri 26.04Sat 27.04
6955885

Weekly direct flights for Sun 28.04 - Sat 04.05

AirlineSun 28.04Mon 29.04Tue 30.04Wed 01.05Thu 02.05Fri 03.05Sat 04.05
8866996

Weekly direct flights for Sun 05.05 - Sat 11.05

AirlineSun 05.05Mon 06.05Tue 07.05Wed 08.05Thu 09.05Fri 10.05Sat 11.05
9966996

Check-in for a flight from San Diego to Seattle

NameCarrier codeIATA CodePassport needed during bookingOnline check-in available
Alaska AirlinesASAASNoOpens 24 days before flight
Closes 1 hours before flight
Frontier AirlinesFFTF9NoOpens 24 days before flight
Closes 1 hours before flight
Spirit AirlinesNKSNKNoOpens 24 days before flight
Closes 1 hours before flight

Weather in Seattle

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January7°C2°C
February8°C1°C
March10°C3°C
April13°C4°C
May18°C8°C
June21°C10°C
July25°C13°C
August26°C14°C
September22°C11°C
October15°C7°C
November10°C4°C
December6°C1°C
Hottest Month
26°C
August
Coldest month
1°C
February
Sunny days
250
days per year
Snow days
5
days per year

14 day forecast

Thursday
4 Apr
81%
9°C4°C
11 Apr
18°C7°C
Friday
5 Apr
13°C3°C
12 Apr
88%
10°C5°C
Saturday
6 Apr
84%
10°C5°C
13 Apr
13°C3°C
Sunday
7 Apr
89%
10°C3°C
14 Apr
14°C3°C
Monday
8 Apr
13°C2°C
15 Apr
82%
11°C7°C
Tuesday
9 Apr
84%
13°C8°C
16 Apr
80%
11°C5°C
Wednesday
10 Apr
16°C6°C
17 Apr
89%
10°C4°C

Frequently asked questions

How long does it take to travel from San Diego to Seattle?
What is the flight distance between San Diego and Seattle?
What airlines offer nonstop (direct) flights between San Diego and Seattle?
What are the most popular routes to and from San Diego?
What are the most popular routes to and from Seattle?
Which airports are there in San Diego?
What airports are near San Diego?
What airports are near Seattle?
Is it possible to combine flights, buses, and trains in one itinerary when traveling between San Diego and Seattle?
What is Virtual Interlining and how do I use it?
Which airlines fly between San Diego and Seattle?
When's the best time to travel between San Diego and Seattle?
What flights operate between San Diego and Seattle?
How many airports are there near San Diego?
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What time do nonstop (direct) flights between San Diego and Seattle depart?
What time do nonstop (direct) flights between San Diego and Seattle arrive?
What time do flights between San Diego and Seattle depart?
What time do flights between San Diego and Seattle arrive?

Explore alternative trips

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