Flights to San Diego Coast from St. Louis - ￥19,390

View ￥19,390 flight on Tue, Sep 9, 2025Opens in a new window

Popular airlines from St. Louis to San Diego Coast

  • Peach

    Peach

  • Skymark Airlines

    Skymark Airlines

  • All Nippon Airways

    All Nippon Airways

  • Japan Airlines

    Japan Airlines

  • Jetstar Japan

    Jetstar Japan

  • Solaseed Air

    Solaseed Air

  • STARFLYER

    STARFLYER

  • 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 40% on select hotels after you book a flight*
  • payments icon
    Earn twice
    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from St. Louis to San Diego Coast (STL-SAN)

Prices were available within the past 7 days and start at ￥19,390 for one-way flights and ￥58,500 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sun, Aug 3 - Fri, Aug 8
STL
St. Louis
SAN
San Diego
￥58,500 Roundtrip, found 3 days ago
￥58,500
Roundtrip
found 3 days ago
Select American Airlines flight, departing Sun, Aug 3 from St. Louis to San Diego, returning Fri, Aug 8, priced at ￥58,500 found 3 days ago
Delta
Sun, Aug 3 - Fri, Aug 8
STL
St. Louis
SAN
San Diego
￥58,500 Roundtrip, found 3 days ago
￥58,500
Roundtrip
found 3 days ago
Select Delta flight, departing Sun, Aug 3 from St. Louis to San Diego, returning Fri, Aug 8, priced at ￥58,500 found 3 days ago
American Airlines
Sun, Aug 3 - Fri, Aug 8
STL
St. Louis
SAN
San Diego
￥68,610 Roundtrip, found 3 days ago
￥68,610
Roundtrip
found 3 days ago
Select American Airlines flight, departing Sun, Aug 3 from St. Louis to San Diego, returning Fri, Aug 8, priced at ￥68,610 found 3 days ago
Delta
Sun, Aug 3 - Fri, Aug 8
STL
St. Louis
SAN
San Diego
￥70,540 Roundtrip, found 3 days ago
￥70,540
Roundtrip
found 3 days ago
Select Delta flight, departing Sun, Aug 3 from St. Louis to San Diego, returning Fri, Aug 8, priced at ￥70,540 found 3 days ago
United
Sun, Aug 3 - Fri, Aug 8
STL
St. Louis
SAN
San Diego
￥71,400 Roundtrip, found 3 days ago
￥71,400
Roundtrip
found 3 days ago
Select United flight, departing Sun, Aug 3 from St. Louis to San Diego, returning Fri, Aug 8, priced at ￥71,400 found 3 days ago
American Airlines
Sun, Aug 3 - Fri, Aug 8
STL
St. Louis
SAN
San Diego
￥76,880 Roundtrip, found 3 days ago
￥76,880
Roundtrip
found 3 days ago
Select American Airlines flight, departing Sun, Aug 3 from St. Louis to San Diego, returning Fri, Aug 8, priced at ￥76,880 found 3 days ago

Find the cheapest month to fly from St. Louis (STL) to San Diego (SAN)

September is typically the cheapest month to fly

From ￥16,919 - ￥43,682 per traveler.

Graph displaying average flight prices per month

*Available to Expedia members.