Cheap flights from Seattle, WA to San Diego, CA

Flights starting at CA$89. Choose between Alaska Airlines, Spirit Airlines, or Frontier Airlines to find the best price.

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Travelers usually depart from Seattle–Tacoma International, Kenmore Air Harbor Seaplane Base, Seattle, WA - University of Washington, or Seattle WA - South Lane St. Bus Stop when they travel from Seattle to San Diego. Book your trip to arrive at San Diego International, San Diego, CA - La Jolla, San Diego, CA - Old Town, San Diego, CA - Seaport Village, or San Diego-SDSU Transit Center. The distance between Seattle and San Diego is 1694 km. The most popular airlines for this route are Alaska Airlines, Spirit Airlines, Frontier Airlines, JetBlue Airways, and Allegiant Air. Seattle and San Diego have 321 direct flights per week.

Weekly direct flights

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

Weekly direct flights for Sun 18.02 - Sat 24.02

AirlineSun 18.02Mon 19.02Tue 20.02Wed 21.02Thu 22.02Fri 23.02Sat 24.02
8536887

Weekly direct flights for Sun 25.02 - Sat 02.03

AirlineSun 25.02Mon 26.02Tue 27.02Wed 28.02Thu 29.02Fri 01.03Sat 02.03
8866887

Weekly direct flights for Sun 03.03 - Sat 09.03

AirlineSun 03.03Mon 04.03Tue 05.03Wed 06.03Thu 07.03Fri 08.03Sat 09.03
8476787

Weekly direct flights for Sun 10.03 - Sat 16.03

AirlineSun 10.03Mon 11.03Tue 12.03Wed 13.03Thu 14.03Fri 15.03Sat 16.03
8875995

Check-in for a flight from Seattle to San Diego

NameCarrier codeIATA CodePassport needed during bookingOnline check-in available
Alaska AirlinesASAASNoOpens 24 days before flight
Closes 1 hours before flight
Spirit AirlinesNKSNKNoOpens 24 days before flight
Closes 1 hours before flight
Frontier AirlinesFFTF9NoOpens 24 days before flight
Closes 1 hours before flight
JetBlue AirwaysJBUB6NoOpens 24 days before flight
Closes 2 hours before flight
Allegiant AirAAYG4NoOpens 24 days before flight
Closes 1 hours before flight

Weather in San Diego

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January18°C10°C
February17°C10°C
March18°C11°C
April19°C12°C
May20°C14°C
June22°C16°C
July24°C18°C
August25°C19°C
September25°C19°C
October23°C16°C
November21°C13°C
December17°C11°C
Hottest Month
25°C
August
Coldest month
10°C
February
Sunny days
344
days per year

14 day forecast

Sunday
25 Feb
18°C15°C
3 Mar
88%
14°C11°C
Monday
26 Feb
85%
17°C14°C
4 Mar
17°C10°C
Tuesday
27 Feb
88%
17°C14°C
5 Mar
17°C11°C
Wednesday
28 Feb
18°C13°C
6 Mar
16°C12°C
Thursday
29 Feb
18°C13°C
7 Mar
16°C12°C
Friday
1 Mar
84%
16°C14°C
8 Mar
16°C12°C
Saturday
2 Mar
85%
16°C12°C
9 Mar
16°C13°C

Frequently asked questions

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