€146 Cheap Flights St. Louis to San Diego (STL-SAN)

View €146 flight on Mon, 29 Jun 2026Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to San Diego Intl. Airport (SAN)

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

Prices were available within the past 7 days and start at €146 for one-way flights and €273 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Mon, 29 Jun - Tue, 14 Jul
STL
St. Louis
SAN
San Diego
€273 Return, found 4 days ago
€273
Return
found 4 days ago
Select American Airlines flight, departing Mon, 29 Jun from St. Louis to San Diego, returning Tue, 14 Jul, priced at €273 found 4 days ago
American Airlines
Mon, 29 Jun - Tue, 14 Jul
STL
St. Louis
SAN
San Diego
€291 Return, found 4 days ago
€291
Return
found 4 days ago
Select American Airlines flight, departing Mon, 29 Jun from St. Louis to San Diego, returning Tue, 14 Jul, priced at €291 found 4 days ago
United
Mon, 29 Jun - Tue, 14 Jul
STL
St. Louis
SAN
San Diego
€297 Return, found 4 days ago
€297
Return
found 4 days ago
Select United flight, departing Mon, 29 Jun from St. Louis to San Diego, returning Tue, 14 Jul, priced at €297 found 4 days ago
American Airlines
Mon, 29 Jun - Tue, 14 Jul
STL
St. Louis
SAN
San Diego
€298 Return, found 4 days ago
€298
Return
found 4 days ago
Select American Airlines flight, departing Mon, 29 Jun from St. Louis to San Diego, returning Tue, 14 Jul, priced at €298 found 4 days ago
American Airlines
Mon, 29 Jun - Tue, 14 Jul
STL
St. Louis
SAN
San Diego
€311 Return, found 4 days ago
€311
Return
found 4 days ago
Select American Airlines flight, departing Mon, 29 Jun from St. Louis to San Diego, returning Tue, 14 Jul, priced at €311 found 4 days ago
American Airlines
Mon, 29 Jun - Tue, 14 Jul
STL
St. Louis
SAN
San Diego
€312 Return, found 4 days ago
€312
Return
found 4 days ago
Select American Airlines flight, departing Mon, 29 Jun from St. Louis to San Diego, returning Tue, 14 Jul, priced at €312 found 4 days ago
American Airlines
Mon, 29 Jun - Tue, 14 Jul
STL
St. Louis
SAN
San Diego
€317 Return, found 4 days ago
€317
Return
found 4 days ago
Select American Airlines flight, departing Mon, 29 Jun from St. Louis to San Diego, returning Tue, 14 Jul, priced at €317 found 4 days ago
United
Mon, 29 Jun - Tue, 14 Jul
STL
St. Louis
SAN
San Diego
€332 Return, found 4 days ago
€332
Return
found 4 days ago
Select United flight, departing Mon, 29 Jun from St. Louis to San Diego, returning Tue, 14 Jul, priced at €332 found 4 days ago
United
Mon, 29 Jun - Tue, 14 Jul
STL
St. Louis
SAN
San Diego
€333 Return, found 4 days ago
€333
Return
found 4 days ago
Select United flight, departing Mon, 29 Jun from St. Louis to San Diego, returning Tue, 14 Jul, priced at €333 found 4 days ago
Delta
Mon, 29 Jun - Tue, 14 Jul
STL
St. Louis
SAN
San Diego
€341 Return, found 4 days ago
€341
Return
found 4 days ago
Select Delta flight, departing Mon, 29 Jun from St. Louis to San Diego, returning Tue, 14 Jul, priced at €341 found 4 days ago

Frequently asked questions

How much is a flight from STL to San Diego Intl. Airport (SAN)?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price quoted for a round-trip flight between STL and SAN was €273. Fares this cheap don't hang around, so book yours today. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Lambert-St. Louis Intl. Airport (STL) to San Diego Airport?
Most flights can be conveniently cancelled online, but whether or not you incur a fee depends on your airline. If you do need to cancel your trip, follow the easy instructions in the Customer Service Portal.
How do I find cheap flights from Lambert-St. Louis Intl. Airport (STL) to San Diego Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for STL to San Diego Intl. Airport (SAN) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from St. Louis Lambert International Airport to SAN?
It's around 2,500 kilometres between St. Louis and San Diego, so you'll be up in the air for a while. Keep yourself occupied by packing things like crossword puzzles or a gripping book.
Which airlines fly direct from Lambert Field to San Diego Airport?
Southwest Airlines (WN) will fly you from Lambert-St. Louis Intl. Airport (STL) to San Diego Intl. Airport (SAN) comfortably and safely. Choose from 30 flights every month on this route.
Are Lambert-St. Louis Intl. Airport (STL) to San Diego Intl. Airport (SAN) flight tickets cheaper when they're purchased at the last minute?
It is possible to score amazing last-minute deals from STL to San Diego Airport, but it's also possible to miss out entirely! As many airlines release seats up to 12 months in advance, it's worthwhile keeping an eye on fares early and being ready to book when you see a good bargain. Expedia compares carrier prices and updates flight deals regularly, so you can rest assured you're always getting the latest offers.

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
San Diego Intl.
Return price
€272
Distance
2487 km
Average flight time
2 hours 42 mins

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