€147 Cheap Flights St. Louis to San Diego (STL-SAN)

View €147 flight on Mon, 27 Oct 2025Opens 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 €147 for one-way flights and €293 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Mon, 27 Oct - Wed, 5 Nov
STL
St. Louis
SAN
San Diego
€293 Return, found 4 days ago
€293
Return
found 4 days ago
Select Delta flight, departing Mon, 27 Oct from St. Louis to San Diego, returning Wed, 5 Nov, priced at €293 found 4 days ago
American Airlines
Mon, 27 Oct - Wed, 5 Nov
STL
St. Louis
SAN
San Diego
€312 Return, found 4 days ago
€312
Return
found 4 days ago
Select American Airlines flight, departing Mon, 27 Oct from St. Louis to San Diego, returning Wed, 5 Nov, priced at €312 found 4 days ago
American Airlines
Mon, 27 Oct - Wed, 5 Nov
STL
St. Louis
SAN
San Diego
€313 Return, found 4 days ago
€313
Return
found 4 days ago
Select American Airlines flight, departing Mon, 27 Oct from St. Louis to San Diego, returning Wed, 5 Nov, priced at €313 found 4 days ago
Delta
Mon, 27 Oct - Wed, 5 Nov
STL
St. Louis
SAN
San Diego
€323 Return, found 4 days ago
€323
Return
found 4 days ago
Select Delta flight, departing Mon, 27 Oct from St. Louis to San Diego, returning Wed, 5 Nov, priced at €323 found 4 days ago
Delta
Mon, 27 Oct - Wed, 5 Nov
STL
St. Louis
SAN
San Diego
€328 Return, found 4 days ago
€328
Return
found 4 days ago
Select Delta flight, departing Mon, 27 Oct from St. Louis to San Diego, returning Wed, 5 Nov, priced at €328 found 4 days ago
Delta
Mon, 27 Oct - Wed, 5 Nov
STL
St. Louis
SAN
San Diego
€329 Return, found 4 days ago
€329
Return
found 4 days ago
Select Delta flight, departing Mon, 27 Oct from St. Louis to San Diego, returning Wed, 5 Nov, priced at €329 found 4 days ago
Delta
Mon, 27 Oct - Wed, 5 Nov
STL
St. Louis
SAN
San Diego
€331 Return, found 4 days ago
€331
Return
found 4 days ago
Select Delta flight, departing Mon, 27 Oct from St. Louis to San Diego, returning Wed, 5 Nov, priced at €331 found 4 days ago
American Airlines
Mon, 27 Oct - Wed, 5 Nov
STL
St. Louis
SAN
San Diego
€332 Return, found 4 days ago
€332
Return
found 4 days ago
Select American Airlines flight, departing Mon, 27 Oct from St. Louis to San Diego, returning Wed, 5 Nov, priced at €332 found 4 days ago
United
Mon, 27 Oct - Wed, 5 Nov
STL
St. Louis
SAN
San Diego
€367 Return, found 4 days ago
€367
Return
found 4 days ago
Select United flight, departing Mon, 27 Oct from St. Louis to San Diego, returning Wed, 5 Nov, priced at €367 found 4 days ago
Southern Airways Express
Mon, 27 Oct - Wed, 5 Nov
STL
St. Louis
SAN
San Diego
€411 Return, found 4 days ago
€411
Return
found 4 days ago
Select Southern Airways Express flight, departing Mon, 27 Oct from St. Louis to San Diego, returning Wed, 5 Nov, priced at €411 found 4 days ago

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

November is typically the cheapest month to fly

From €101 - €347 per traveller.
St. Louis to San Diego route information
Origin airport
Lambert-St. Louis Intl.
Destination airport
San Diego Intl.
Return price
€292
Distance
2487 km
Average flight time
3 hours 45 mins

Perfect flights from St. Louis to San Diego

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from St. Louis to San Diego. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
 
Picture yourself strolling through the streets of , surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
 
Our flexible Lambert-St. Louis Intl. to San Diego Intl. ticket options cater to your travel preferences, with incredible one-way fares from €147 and roundtrip prices from €293. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
 
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at San Diego Intl. and explore and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
 
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your to travel arrangements today and embark on the journey of a lifetime in San Diego.

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 €293. 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.

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