$59 Cheap flights from Lambert-St. Louis Intl. to San Diego Intl. (STL to SAN)

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Find The Best Dates To Fly from Lambert-St. Louis Intl. to San Diego Intl.

Amazing STL to SAN Flight Deals

The cheapest flights to San Diego Intl. found within the past 7 days were $118 round trip and $59 one way. Prices and availability subject to change. Additional terms may apply.

Sat, Jan 11 - Thu, Jan 16
STL
St. Louis
SAN
San Diego
$118 Roundtrip, found 4 hours ago
$118
Roundtrip
found 4 hours ago
Select Frontier Airlines flight, departing Sat, Jan 11 from St. Louis to San Diego, returning Thu, Jan 16, priced at $118 found 4 hours ago
Sat, Dec 7 - Thu, Dec 12
STL
St. Louis
SAN
San Diego
$138 Roundtrip, found 1 hour ago
$138
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Sat, Dec 7 from St. Louis to San Diego, returning Thu, Dec 12, priced at $138 found 1 hour ago
Thu, Dec 19 - Wed, Dec 25
STL
St. Louis
SAN
San Diego
$150 Roundtrip, found 2 days ago
$150
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Thu, Dec 19 from St. Louis to San Diego, returning Wed, Dec 25, priced at $150 found 2 days ago
Sun, Nov 24 - Fri, Nov 29
STL
St. Louis
SAN
San Diego
$156 Roundtrip, found 6 days ago
$156
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Sun, Nov 24 from St. Louis to San Diego, returning Fri, Nov 29, priced at $156 found 6 days ago
Sat, Dec 7 - Fri, Dec 13
STL
St. Louis
SAN
San Diego
$158 Roundtrip, found 1 hour ago
$158
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Sat, Dec 7 from St. Louis to San Diego, returning Fri, Dec 13, priced at $158 found 1 hour ago
Mon, Jan 27 - Fri, Jan 31
STL
St. Louis
SAN
San Diego
$168 Roundtrip, found 1 day ago
$168
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Mon, Jan 27 from St. Louis to San Diego, returning Fri, Jan 31, priced at $168 found 1 day ago
Fri, Dec 20 - Wed, Dec 25
STL
St. Louis
SAN
San Diego
$174 Roundtrip, found 4 hours ago
$174
Roundtrip
found 4 hours ago
Select Frontier Airlines flight, departing Fri, Dec 20 from St. Louis to San Diego, returning Wed, Dec 25, priced at $174 found 4 hours ago
Fri, Dec 6 - Fri, Dec 13
STL
St. Louis
SAN
San Diego
$178 Roundtrip, found 1 hour ago
$178
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Fri, Dec 6 from St. Louis to San Diego, returning Fri, Dec 13, priced at $178 found 1 hour ago
Thu, Nov 28 - Thu, Dec 5
STL
St. Louis
SAN
San Diego
$181 Roundtrip, found 4 days ago
$181
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Thu, Nov 28 from St. Louis to San Diego, returning Thu, Dec 5, priced at $181 found 4 days ago
Fri, Jan 17 - Mon, Jan 20
STL
St. Louis
SAN
San Diego
$188 Roundtrip, found 4 hours ago
$188
Roundtrip
found 4 hours ago
Select Frontier Airlines flight, departing Fri, Jan 17 from St. Louis to San Diego, returning Mon, Jan 20, priced at $188 found 4 hours ago

Best San Diego Intl. Flight and Hotel Packages

San Diego Intl. flight + hotel packages - economy flights

Price found within the past 48 hours. Click for updated prices.
Hotel Indigo San Diego-Gaslamp Quarter, an IHG Hotel

Hotel Indigo San Diego-Gaslamp Quarter, an IHG Hotel

4 out of 5
Save 100% on your flight
per person
Jan 10 - Jan 15
found 15 hours ago
Roundtrip non-stop flight included
St. Louis (STL) to San Diego (SAN)
Paradise Point Resort & Spa

Paradise Point Resort & Spa

4 out of 5
Save 100% on your flight
per person
Jan 1 - Jan 5
found 1 day ago
Roundtrip non-stop flight included
St. Louis (STL) to San Diego (SAN)
Rancho Bernardo Inn

Rancho Bernardo Inn

4 out of 5
Save 100% on your flight
per person
Jan 10 - Jan 15
found 15 hours ago
Roundtrip non-stop flight included
St. Louis (STL) to San Diego (SAN)
The Wayfarer San Diego

The Wayfarer San Diego

4 out of 5
Save 100% on your flight
per person
Jan 1 - Jan 5
found 1 day ago
Roundtrip non-stop flight included
St. Louis (STL) to San Diego (SAN)
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Frequently asked questions

Can I catch a flight from STL to SAN right now?
Be sure to visit our Covid-19 Travel Advisor to find out if there are any current travel advice reports and quarantine requirements in effect in San Diego Intl. Airport (SAN) when flying from STL.
Are there direct flights from STL to San Diego Airport?
For a hassle-free trip between St. Louis and San Diego County, try Southwest Airlines. This airline operates direct flights from Lambert-St. Louis Intl. Airport (STL) to SAN.
If I am not able to travel due to COVID-19, can I change my booking to a later date?
For more info about changing your flight to San Diego Intl. Airport (SAN), please visit our Customer Service Portal.
How long is the flight from Lambert-St. Louis Intl. Airport (STL) to SAN?
Step off the plane feeling rested and relaxed by having a snooze and something to eat during your flight to San Diego Airport. With an usual travel time of 5 hours and 41 minutes from Lambert-St. Louis Intl. Airport (STL), you’ll have enough time to indulge in both.
What is the flight distance from Lambert-St. Louis Intl. Airport (STL) to San Diego Intl. Airport (SAN)?
With a flight distance of 1,550 mi between STL and San Diego Airport, you’ll be cruising the skies for a reasonable amount of time. It’s an excellent opportunity to get engrossed in a movie, get some work out of the way or just relax with a magazine.
What airlines fly from St. Louis Lambert International Airport to SAN?
With Southwest Airlines, you won’t have to bother with extended layovers or standing around waiting for your next flight. This airline will take you nonstop from St. Louis Lambert International Airport to SAN on one of the 30 flights offered on this route each month.
What airlines have practices regarding COVID-19 in place and use social distancing?
From the moment you enter the departure terminal to when you leave the arrivals terminal, if you’re flying with Southwest Airlines, Alaska Airlines or United Airlines you can be sure that COVID-19 measures and social distancing rules have been adhered to. Many airlines have introduced capped capacity flights and keeping the middle seat empty.
What is the best day to buy a plane ticket?
This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.
What are the cheapest days to fly?
Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.
How far in advance can you book a flight?
Trying to figure out how early you should book your flight? It’s possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

 

Traveling From
Lambert-St. Louis Intl.
Traveling To
San Diego Intl.
Shortest Flight Time
 hours mins
Earliest Departure Time
Latest Departure Time
Lowest Flight Price
$118

Route Info

Flight path for flights from Lambert-St. Louis International Airport to San Diego International Airport


Origin:
STL - Lambert-St. Louis International Airport
Destination:
SAN - San Diego International Airport
Distance:
1,562.00 miles


Airlines & Aircraft Used on STL to SAN Flight Routes


Airline Carrier
Aircraft
American Airlines
Harbin Yunshuji Y12
United Airlines
De Havilland Canada DHC-6 Twin Otter
United Airlines
Harbin Yunshuji Y12

Discover our best flights from St. Louis STL to San Diego SAN. 

With 20 airlines to choose from on Travelocity, you can easily find the best option for you. Use our filters to sort by price, compare airlines, and find the most convenient flight times. 

 

Find our best return flights from St. Louis STL to San Diego SAN at the right price  

Airfares to San Diego SAN from St. Louis STL currently cost between $118 and $188. It’s usually cheaper to book a round trip than two separate one-way flights. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way flights from St. Louis STL to San Diego SAN 

If you want to be flexible about when you return, or keep your travel options open ended, a one-way flight could be just the ticket! You’ll find one-way airfares from St. Louis STL to San Diego SAN on Travelocity starting at $59. Prices and availability subject to change. Additional terms may apply. 

 

Get to San Diego SAN from St. Louis STL quicker with direct flights. 

Get to San Diego faster, without the hassle of changing planes and moving baggage, by booking a direct flight. Expect your direct flight to SAN from STL to take around hour(s) min(s).  

 

Find our cheapest airfares for flights from St. Louis STL to San Diego SAN

Find cheap flight deals by using our search filters to sort results starting with the lowest price airfares to SAN from STL. Our Price Match Promise means if you find a lower rate on Travelocity.com or on another US-based website within 24 hours of booking, we’ll credit or refund the difference.  

 

Get our best airfare deals for your flight from St. Louis STL to San Diego SAN today 

If you’re flexible about when you travel, January is usually the cheapest month to fly from St. Louis STL to San Diego SAN. If you need to be more specific, search by date and arrival and departure times.Then, compare prices across different airlines, and sort results by lowest price first. 

 

Book flexible airline tickets for flights to San Diego SAN from St. Louis STL 

Some airlines let you change your travel dates without charging a fee. Use our ‘no change fee’ filter to see which flights to SAN from STL have this option.  

 

Travel with confidence when you book flights to San Diego SAN from St. Louis STL with Travelocity 

We’ve secured fantastic deals with all the main airline carriers and it’s easy to compare, choose, and book with Travelocity. With 24/7 customer service and our free 'App', we’ll always keep you moving. 

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.