$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.

Mon, Jan 6 - Thu, Jan 9
STL
St. Louis
SAN
San Diego
$118 Roundtrip, found 18 hours ago
$118
Roundtrip
found 18 hours ago
Select Frontier Airlines flight, departing Mon, Jan 6 from St. Louis to San Diego, returning Thu, Jan 9, priced at $118 found 18 hours ago
Sat, Feb 15 - Fri, Feb 28
STL
St. Louis
SAN
San Diego
$134 Roundtrip, found 1 day ago
$134
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sat, Feb 15 from St. Louis to San Diego, returning Fri, Feb 28, priced at $134 found 1 day ago
Mon, Feb 24 - Thu, Feb 27
STL
St. Louis
SAN
San Diego
$136 Roundtrip, found 2 days ago
$136
Roundtrip
found 2 days ago
Select American Airlines flight, departing Mon, Feb 24 from St. Louis to San Diego, returning Thu, Feb 27, priced at $136 found 2 days ago
Sat, Feb 22 - Tue, Feb 25
STL
St. Louis
SAN
San Diego
$138 Roundtrip, found 5 days ago
$138
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Sat, Feb 22 from St. Louis to San Diego, returning Tue, Feb 25, priced at $138 found 5 days ago
Wed, Feb 19 - Fri, Feb 28
STL
St. Louis
SAN
San Diego
$150 Roundtrip, found 1 day ago
$150
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Wed, Feb 19 from St. Louis to San Diego, returning Fri, Feb 28, priced at $150 found 1 day ago
Fri, Feb 28 - Sun, Mar 2
STL
St. Louis
SAN
San Diego
$154 Roundtrip, found 9 hours ago
$154
Roundtrip
found 9 hours ago
Select Frontier Airlines flight, departing Fri, Feb 28 from St. Louis to San Diego, returning Sun, Mar 2, priced at $154 found 9 hours ago
Mon, Feb 17 - Thu, Feb 27
STL
St. Louis
SAN
San Diego
$157 Roundtrip, found 1 day ago
$157
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Mon, Feb 17 from St. Louis to San Diego, returning Thu, Feb 27, priced at $157 found 1 day ago
Sat, Feb 22 - Tue, Feb 25
STL
St. Louis
SAN
San Diego
$158 Roundtrip, found 5 days ago
$158
Roundtrip
found 5 days ago
Select American Airlines flight, departing Sat, Feb 22 from St. Louis to San Diego, returning Tue, Feb 25, priced at $158 found 5 days ago
Wed, Apr 2 - Tue, Apr 8
STL
St. Louis
SAN
San Diego
$166 Roundtrip, found 3 days ago
$166
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Wed, Apr 2 from St. Louis to San Diego, returning Tue, Apr 8, priced at $166 found 3 days ago
Sun, Feb 16 - Tue, Feb 18
STL
St. Louis
SAN
San Diego
$170 Roundtrip, found 5 days ago
$170
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Sun, Feb 16 from St. Louis to San Diego, returning Tue, Feb 18, priced at $170 found 5 days 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.
Kona Kai San Diego

Kona Kai San Diego

4 out of 5
per person
Feb 5 - Feb 8
found 1 day 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
Feb 10 - Feb 13
found 1 day 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
Feb 10 - Feb 13
found 1 day ago
Roundtrip non-stop flight included
St. Louis (STL) to San Diego (SAN)
Granger Hotel Gaslamp Quarter, a Member of Design Hotels

Granger Hotel Gaslamp Quarter, a Member of Design Hotels

4 out of 5
Save 100% on your flight
per person
Feb 5 - Feb 8
found 1 day ago
Roundtrip non-stop flight included
St. Louis (STL) to San Diego (SAN)
The New Inn

The New Inn

3.5 out of 5
Save 100% on your flight
per person
Feb 2 - Feb 7
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
6:30AM PST
Latest Departure Time
8:55PM PST
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 $170. 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 0 hour(s) 5 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.