฿5,895 Cheap American Airlines flights from Seattle to San Diego (SEA→SAN)

View ฿5,895 flight on Fri, 23 Jan 2026Opens in a new window
  • notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
  • deals illustration

    Book smarter

    Save up to 40% on select hotels after you book a flight*
  • trophy illustration

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

American Airlines flights from Seattle to San Diego (SEA→SAN)

Prices were available within the past 7 days and start at ฿5,895 for one-way flights and ฿8,700 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Fri, 23 Jan - Sun, 25 Jan
SEA
Seattle
SAN
San Diego
฿8,700 Return, found 5 days ago
฿8,700
Return
found 5 days ago
Select American Airlines flight, departing Fri, 23 Jan from Seattle to San Diego, returning Sun, 25 Jan, priced at ฿8,700 found 5 days ago
American Airlines
Fri, 23 Jan - Sun, 25 Jan
SEA
Seattle
SAN
San Diego
฿9,600 Return, found 5 days ago
฿9,600
Return
found 5 days ago
Select American Airlines flight, departing Fri, 23 Jan from Seattle to San Diego, returning Sun, 25 Jan, priced at ฿9,600 found 5 days ago
American Airlines
Fri, 23 Jan - Sun, 25 Jan
SEA
Seattle
SAN
San Diego
฿9,950 Return, found 5 days ago
฿9,950
Return
found 5 days ago
Select American Airlines flight, departing Fri, 23 Jan from Seattle to San Diego, returning Sun, 25 Jan, priced at ฿9,950 found 5 days ago
American Airlines
Fri, 23 Jan - Sun, 25 Jan
SEA
Seattle
SAN
San Diego
฿10,095 Return, found 5 days ago
฿10,095
Return
found 5 days ago
Select American Airlines flight, departing Fri, 23 Jan from Seattle to San Diego, returning Sun, 25 Jan, priced at ฿10,095 found 5 days ago
American Airlines
Fri, 23 Jan - Sun, 25 Jan
SEA
Seattle
SAN
San Diego
฿10,845 Return, found 5 days ago
฿10,845
Return
found 5 days ago
Select American Airlines flight, departing Fri, 23 Jan from Seattle to San Diego, returning Sun, 25 Jan, priced at ฿10,845 found 5 days ago
American Airlines
Fri, 23 Jan - Sun, 25 Jan
SEA
Seattle
SAN
San Diego
฿10,855 Return, found 5 days ago
฿10,855
Return
found 5 days ago
Select American Airlines flight, departing Fri, 23 Jan from Seattle to San Diego, returning Sun, 25 Jan, priced at ฿10,855 found 5 days ago

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

January is typically the cheapest month to fly

From ฿2,788 - ฿5,030 per traveller.

Frequently asked questions

How much is an American Airlines flight from Seattle - Tacoma Intl. Airport (SEA) to San Diego Intl. Airport (SAN)?
Finding cheap one-way American Airlines flights from SEA to SAN from ฿5,895 on Expedia is simple — just filter by "Price (lowest to highest)." Alternatively, check out our budget-friendly round-trip fares from ฿8,700 for your next exciting getaway.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from SEA to SAN with American Airlines?
Look for one-way or return flights to San Diego in January or November. You could find an affordable fare with American Airlines during these off-peak months.
Does American Airlines fly nonstop from Seattle - Tacoma Intl. Airport (SEA) to San Diego Intl. Airport (SAN)?
To figure out if there's a direct route from SEA to SAN with American Airlines or another carrier, check the "Nonstop" box when looking for flights.
What airports does American Airlines fly into in San Diego?
American Airlines flights from Seattle - Tacoma Intl. Airport (SEA) to San Diego come in to land at San Diego Intl. Airport (SAN). This is the main gateway to this destination.
Can I change or cancel my American Airlines flight from Seattle - Tacoma Intl. Airport (SEA) to San Diego Intl. Airport (SAN)?
Depending on the type of fare you purchased, a fee is typically charged if you modify or cancel your booking more than 24 hours after it's confirmed. To secure flexible plane tickets, select our "Changes included" or "No cancel fee" filter when you look for flights. For more information on modifying or cancelling your reservation, go to "Trips," select your flight and click on "Manage Booking."

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
San Diego Intl.
Distance
1681 km
Average flight time
2 hours 48 mins

Explore a world of travel with Expedia

*Available to Expedia members.