American Airlines Cheap Flights from Seattle to San Diego

View €101 flight on Tue, 23 Sep 2025Opens in a new window

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 15% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Prices were available within the past 7 days and start at €101 for one-way flights and €211 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Mon, 29 Sep - Thu, 2 Oct
SEA
Seattle
CLD
Carlsbad
€211 Return, found 22 hours ago
€211
Return
found 22 hours ago
Select American Airlines flight, departing Mon, 29 Sep from Seattle to Carlsbad, returning Thu, 2 Oct, priced at €211 found 22 hours ago
American Airlines
Sun, 28 Sep - Thu, 2 Oct
SEA
Seattle
SAN
San Diego
€221 Return, found 2 hours ago
€221
Return
found 2 hours ago
Select American Airlines flight, departing Sun, 28 Sep from Seattle to San Diego, returning Thu, 2 Oct, priced at €221 found 2 hours ago
American Airlines
Sun, 28 Sep - Thu, 2 Oct
SEA
Seattle
SAN
San Diego
€222 Return, found 2 hours ago
€222
Return
found 2 hours ago
Select American Airlines flight, departing Sun, 28 Sep from Seattle to San Diego, returning Thu, 2 Oct, priced at €222 found 2 hours ago
American Airlines
Thu, 14 Aug - Sat, 16 Aug
SEA
Seattle
SAN
San Diego
€224 Return, found 2 days ago
€224
Return
found 2 days ago
Select American Airlines flight, departing Thu, 14 Aug from Seattle to San Diego, returning Sat, 16 Aug, priced at €224 found 2 days ago
American Airlines
Thu, 14 Aug - Sat, 16 Aug
SEA
Seattle
SAN
San Diego
€245 Return, found 2 days ago
€245
Return
found 2 days ago
Select American Airlines flight, departing Thu, 14 Aug from Seattle to San Diego, returning Sat, 16 Aug, priced at €245 found 2 days ago
American Airlines
Sun, 28 Sep - Thu, 2 Oct
SEA
Seattle
SAN
San Diego
€248 Return, found 2 hours ago
€248
Return
found 2 hours ago
Select American Airlines flight, departing Sun, 28 Sep from Seattle to San Diego, returning Thu, 2 Oct, priced at €248 found 2 hours ago
Seattle to San Diego route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
San Diego Intl.
Airlines serving
American Airlines, Delta, Hawaiian Airlines, United
Popular airline
American Airlines
Distance
1681 km
Average flight time
2 hours 51 mins
*Available to Expedia members.