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Find the lowest STL airfares by comparing hundreds of airlines and agencies.
Good to Know: Flights to STL
Useful information for finding cheap flights to Lambert St Louis International and booking your next trip
Cheapest Round Trip Flight
$226
Southwest Airlines
• nonstop
• 1h 55m
Sep 17 – Sep 20
The cheapest round trip flight from Chicago to St Louis (MDW-STL-MDW) is currently $226
Cheapest One way Flight
$192
Frontier Airlines
• 1 stop
• 18h 36m
Sep 23
The cheapest one way flight from Denver to St Louis (DEN-STL) is currently $192
Cheapest Direct Flight
$226
Southwest Airlines
• nonstop
• 1h 55m
Sep 17
The cheapest nonstop flight from Chicago to St Louis (MDW-STL) is currently $226
Fastest Flight
1h 50m
The fastest nonstop flight from Chicago to St Louis (MDW-STL) takes 1h 50m
Top Airlines Flying to Lambert St Louis International (STL)
Best Flight Deals to St Louis
Identify the most efficient round-trip flights to St Louis. We present options balancing cost and convenience for your return journey.
Sep 17 - Sep 20, Economy
Chicago → St Louis
1h 55m
8:55 PM - 10:10 PM • nonstop
Chicago → St Louis
1h 45m
8:50 AM - 9:55 AM • nonstop
Southwest Airlines
Sep 17 - Sep 20, Economy
Chicago → St Louis
1h 50m
9:20 AM - 10:30 AM • nonstop
Chicago → St Louis
6h 40m
10:05 AM - 2:05 PM • 1 stop
Southwest Airlines
Sep 17 - Sep 20, Economy
Chicago → St Louis
1h 55m
5:50 PM - 7:05 PM • nonstop
Chicago → St Louis
6h 50m
3:20 PM - 7:30 PM • 1 stop
Southwest Airlines
Sep 17 - Sep 20, Economy
Chicago → St Louis
5h 10m
6:20 AM - 9:30 AM • 1 stop
Chicago → St Louis
5h 50m
8:30 AM - 12:20 PM • 1 stop
Southwest Airlines
Sep 17 - Sep 20, Economy
Chicago → St Louis
17h 22m
1:00 PM - 11:42 PM • 1 stop
Chicago → St Louis
9h 5m
4:59 PM - 10:44 PM • 1 stop
Delta Airlines
For travel requiring no set return, access available one-way flights to St Louis (STL). These options support extended stays or open-ended plans.
Need to travel to St Louis soon? View current last-minute flight options to STL for spontaneous or pressing plans.
Sep 17 - Sep 20, Economy
Chicago → St Louis
1h 55m
8:55 PM - 10:10 PM • nonstop
Chicago → St Louis
1h 45m
8:50 AM - 9:55 AM • nonstop
Southwest Airlines
Sep 17 - Sep 20, Economy
Chicago → St Louis
1h 50m
9:20 AM - 10:30 AM • nonstop
Chicago → St Louis
6h 40m
10:05 AM - 2:05 PM • 1 stop
Southwest Airlines
Sep 17 - Sep 20, Economy
Chicago → St Louis
1h 55m
5:50 PM - 7:05 PM • nonstop
Chicago → St Louis
6h 50m
3:20 PM - 7:30 PM • 1 stop
Southwest Airlines
Sep 17 - Sep 20, Economy
Chicago → St Louis
5h 10m
6:20 AM - 9:30 AM • 1 stop
Chicago → St Louis
5h 50m
8:30 AM - 12:20 PM • 1 stop
Southwest Airlines
Sep 17 - Sep 20, Economy
Chicago → St Louis
17h 22m
1:00 PM - 11:42 PM • 1 stop
Chicago → St Louis
9h 5m
4:59 PM - 10:44 PM • 1 stop
Delta Airlines
Maximize your time in St Louis, not in transit. Discover non-stop direct flights to STL for the quickest, most straightforward journey to the Strip.
Sep 17 - Sep 20, Economy
Chicago → St Louis
1h 55m
8:55 PM - 10:10 PM • nonstop
Chicago → St Louis
1h 45m
8:50 AM - 9:55 AM • nonstop
Southwest Airlines
Sep 17 - Sep 20, Economy
Chicago → St Louis
1h 50m
9:20 AM - 10:30 AM • nonstop
Chicago → St Louis
1h 50m
12:55 PM - 2:05 PM • nonstop
Southwest Airlines
Sep 17 - Sep 20, Economy
Chicago → St Louis
2h
7:55 AM - 9:15 AM • nonstop
Chicago → St Louis
1h 45m
6:00 AM - 7:05 AM • nonstop
Southwest Airlines
Sep 17 - Sep 20, Economy
Chicago → St Louis
1h 50m
3:10 PM - 4:20 PM • nonstop
Chicago → St Louis
1h 50m
12:55 PM - 2:05 PM • nonstop
Southwest Airlines
Sep 17 - Sep 20, Economy
Chicago → St Louis
1h 55m
5:50 PM - 7:05 PM • nonstop
Chicago → St Louis
1h 45m
3:30 PM - 4:35 PM • nonstop
Southwest Airlines
FAQs on Flights to St Louis (STL)
Which airlines fly to St Louis?
Airlines flying the most to St Louis (STL)
What is the cheapest flight to STL Airport?
In the past couple of days, the cheapest tickets to STL were found on AS : USD 571
What are the most popular origin to St Louis (STL)?
Travelers frequently travel from Denver, Chicago, Reno to St Louis (STL)
Essential Information for Booking Flights from St Louis (STL) - AI Insights
What's the cheapest airline to stl?
For a round-trip Business class ticket from Lambert St Louis International Airport (stl) to an unknown destination with 5 passengers, booking 41 days in advance, consider Southwest Airlines (WN) as a budget-friendly option. You can find affordable airfares with Southwest Airlines, which offers a range of flights with competitive prices.
What's the popular airline to fly to stl?
You can fly to St. Louis Lambert International Airport (stl) on Southwest Airlines (WN) for a business class experience with priority, lounge, and flatbed seats. This round-trip journey is available with two stops. Booking in advance is recommended, ideally 41 days prior to your trip. For budget-friendly flights, consider Southwest Airlines as an option.
What's the cheapest day of the week to fly to stl?
The cheapest day of the week to fly to St. Louis Lambert International Airport (stl) is typically Friday, as it tends to have lower airfare prices compared to other days of the week.
What's the cheapest month to fly to stl?
The cheapest month to fly to St. Louis Lambert International Airport is July, as it tends to have lower airfares compared to other summer months.
Which airline/airlines fly to stl?
Delta Airlines (DL) offers Business class flights with priority, lounge, and flatbed seats from Lambert St Louis International Airport (stl) to various destinations. United Airlines (UA) and American Airlines (AA) also operate flights with similar amenities. You can book these flights in advance, ideally 41 days prior to your trip, to secure the best rates.
What is the cheapest airfare to Lambert St Louis International airport from a US airport?
The cheapest airfare to Lambert St Louis International airport from a US airport is available on Southwest Airlines (WN), with prices starting from $200
How far in advance should I book my flights for the best deals?
It is recommended to book flights at least 41 days in advance for the best deals
Can I book a business class ticket on your airline?
Yes, business class tickets are available on Southwest Airlines (WN), offering priority check-in, lounge access, and flatbed seats
What is the total cost of the airfare including all fees and taxes?
The total cost of the airfare including all fees and taxes can be found on the airline's website or by contacting their customer service
Can I book a round trip ticket on your airline?
Yes, round trip tickets are available on Southwest Airlines (WN), offering convenience and flexibility for your travel plans
How can I find the best airline for my weekend getaway?
You can find the best airline for your weekend getaway by comparing prices and services on websites like fareleaders.com
Can I book my flights directly on your website?
Yes, you can book your flights directly on Southwest Airlines (WN)'s website or through fareleaders.com
Airport Information: Lambert St Louis International (STL)
- IATA Code
- STL
- Name
- Lambert St Louis International
- City
- St Louis
- Country
- US
- Latitude
- 38.74869918823242
- Longitude
- -90.37000274658203
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