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Uncover the best deals on San Diego to St Louis flights by comparing fares from hundreds of airlines and agencies.
Good to Know: Cheapest and Fastest SAN - STL Flights
Useful information for finding best airline tickets from San Diego International to Lambert St Louis International on your next trip.
Cheapest Round Trip Flight
$241
Southwest Airlines
• 1 stop
• 10h 10m
Oct 03 – Oct 21
The cheapest round trip flight from San Diego to St Louis (SAN-STL-SAN) is currently $241
Cheapest Direct Flight
$270
Southwest Airlines
• nonstop
• 9h
Oct 02
The cheapest nonstop flight from San Diego to St Louis (SAN-STL) is currently $270
Fastest Flight
8h 50m
The fastest nonstop flight from San Diego to St Louis (SAN-STL) takes 8h 50m
Top Airlines Flying from San Diego to St Louis
Latest Flight Deals from San Diego (SAN) to St Louis (STL)
Compare and book low fare round-trip air tickets from San Diego to St Louis. Ideal for travelers with confirmed return itineraries.
Oct 03 - Oct 21, Economy
San Diego → St Louis
10h 10m
4:40 PM - 11:35 PM • 1 stop
San Diego → St Louis
5h
5:20 AM - 9:40 AM • 1 stop
Southwest Airlines
Oct 03 - Oct 21, Economy
San Diego → St Louis
10h 14m
9:50 AM - 6:04 PM • 1 stop
San Diego → St Louis
9h 6m
2:31 PM - 6:17 PM • 1 stop
American Airlines
Oct 03 - Oct 21, Economy
San Diego → St Louis
37h 12m
9:03 AM - 9:35 AM • 1 stop
San Diego → St Louis
35h 31m
8:10 PM - 3:41 PM • 1 stop
Frontier Airlines
Oct 02 - Oct 20, Economy
San Diego → St Louis
12h 17m
8:40 AM - 4:37 PM • 1 stop
San Diego → St Louis
8h 49m
1:36 PM - 5:05 PM • 1 stop
United Airlines
Oct 02 - Oct 20, Economy
San Diego → St Louis
11h 43m
6:40 AM - 3:43 PM • 1 stop
San Diego → St Louis
8h 49m
1:36 PM - 5:05 PM • 1 stop
United Airlines
Looking for the fastest way to St Louis? These direct flight options from SAN to STL offer both convenience and value—no layovers, just straight to your destination.
Oct 02 - Oct 20, Economy
San Diego → St Louis
9h
1:20 PM - 7:00 PM • nonstop
San Diego → St Louis
2h 35m
8:30 AM - 10:25 AM • nonstop
Southwest Airlines
FAQs on San Diego to St Louis Flights
What are the airports in San Diego?
SAN
What’s the most popular airline flying from SAN to STL?
The most popular airline flying from San Diego to St Louis are
Can I fly from SAN to STL non-stop?
Yes, you can fly SAN to STL non-stop on
Which airlines fly nonstop between San Diego and St Louis?
The non-stop flights between San Diego and St Louis are .
What’s the earliest departure time from SAN to STL Airport?
The earliest flight leaves SAN at 6:40 am and lands in STL - Lambert St Louis International
What are the airports in St Louis?
STL
Can I make changes to my San Diego to St Louis flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from SAN to STL?
Read the fare rules of the San Diego to St Louis air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from San Diego and St Louis?
operate flights between San Diego and St Louis
How long does a flight from San Diego to St Louis take?
It takes approximately 4 hour to fly non-stop from SAN to STL, which is 1557.18 miles by air.
Which airlines provide the cheapest flights from San Diego (SAN) to St Louis (STL) ?
In the past couple of days, the cheapest tickets to STL from SAN were found on AA : USD 308
Do I need a passport to fly between SAN and STL?
No
What’s the latest departure time from SAN to STL ?
The last flight leaves SAN at 10:20 pm
Essential Information for Booking Flights from San Diego (SAN) - AI Insights
What's the cheapest airline from san to stl?
You can find low fares on Frontier Airlines (F9) from San Diego International Airport (SAN) to Lambert St Louis International Airport (STL). As a business class passenger, you'll enjoy priority check-in, lounge access, and flatbed seats. Booking in advance is recommended, as it's best to secure your seat 41 days prior to departure for the cheapest airfares.
What's the popular airline to fly from san to stl?
You can fly from San Diego International Airport (SAN) to Lambert St Louis International Airport (STL) on Southwest Airlines. As a business class passenger, you'll enjoy priority check-in, lounge access, and flatbed seats. Booking in advance is recommended, as Southwest Airlines often offers low fares for early bookings made within 41 days of departure.
What's the cheapest day of the week to fly from san to stl?
The cheapest day to fly from San Diego (SAN) to St. Louis (STL) is Saturday. Flying on Saturdays can help you save on airfares, making it a budget-friendly option for your Business class ticket.
What's the cheapest month to fly from san to stl?
The cheapest month to fly from San Diego (SAN) to St. Louis (STL) is November, as it tends to have lower airfares compared to other months.
Which airline/airlines fly from san to stl?
The airlines that fly from San Diego International Airport (SAN) to Lambert St Louis International Airport (STL) include Mexicana, JetBlue Airways, Aeromexico, Copa Airlines, Frontier Airlines, United Airlines, Southwest Airlines, Delta Airlines, Alaska Airlines, and British Airways. You can find budget-friendly flights with these airlines for your one-way trip.
What is the cheapest airfare from San Diego to St Louis?
You can find the cheapest airfare from San Diego to St Louis with Frontier Airlines (F9), starting at $X, which is available on Saturdays in November.
How can I book my flight ticket on fareleaders.com?
To book your flight ticket on fareleaders.com, simply click on the 'Book Now' button and enter your travel details. You can also contact our customer support team for assistance.
Can I get a busco pasaje for a one-way trip?
Yes, you can find a busco pasaje (bus ticket) for a one-way trip on fareleaders.com. Simply search for flights and filter by 'One Way' to find the best options.
How do I find the best airline for my weekend getaway?
To find the best airline for your weekend getaway, compare prices across different airlines such as Southwest Airlines (WN), United Airlines (UA), and Delta Airlines (DL). You can also check our 'Best Airline' section on fareleaders.com.
Is it possible to get a discount on airfares if I book in advance?
Yes, booking your flight ticket in advance can help you save up to X% on airfares. Make sure to book at least 41 days prior to your trip for the best deals.
What is the process of making a booking on your website?
To make a booking on fareleaders.com, simply click on the 'Book Now' button and enter your travel details. You can also contact our customer support team for assistance.
Are there any special deals or offers available for agencia web bookings?
Yes, we offer exclusive discounts for agencia web bookings. Simply use the promo code 'AGENCIAWEB' at checkout to receive your discount.
San Diego (SAN) to St Louis (STL): Airport Information
| Origin Airport | San Diego International , San Diego, US |
| Destination Airport | Lambert St Louis International , St Louis, US |
| Distance | 1557 miles |
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