Cheap flights from St. Louis from $33

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis departing on 12/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Find flights from St. Louis within your budget

 
Find flights departing from St. Louis that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on November 26, 2025. In the last 7 days, momondo users made a total of 832,500 searches

Fly to

Route

Depart

Return

Price

St. LouisDenver

STL - DEN

STLDEN

Lambert-St Louis

Wed 12/17

7:43 pm-9:15 pm

Nonstop2h 32m

$33

St. LouisDenver

STL - DEN

STLDEN

Lambert-St Louis

Wed 12/17

7:43 pm-9:15 pm

Nonstop2h 32m

$34

St. LouisAtlanta

STL - ATL

STLATL

Lambert-St Louis

Sun 12/14

10:42 am-1:27 pm

Nonstop1h 45m

$37

St. LouisAtlanta

STL - ATL

STLATL

Lambert-St Louis

Fri 12/12

10:42 am-1:27 pm

Nonstop1h 45m

$38

St. LouisAtlanta

STL - ATL

STLATL

Lambert-St Louis

Fri 1/16

8:32 pm-11:16 pm

Nonstop1h 44m

$39

St. LouisOrlando

STL - MCO

STLMCO

Lambert-St Louis

Tue 2/24

6:25 am-9:55 am

Nonstop2h 30m

$59

St. LouisNew York

STL - LGA

STLLGA

Lambert-St Louis

Tue 12/16

9:50 am-1:14 pm

Nonstop2h 24m

$141

St. LouisNew York

STL - JFK

STLJFK

Lambert-St Louis

Tue 12/16

4:32 pm-8:05 pm

Nonstop2h 33m

$141

St. LouisNew York

STL - JFK

STLJFK

Lambert-St Louis

Sat 2/14

6:35 pm-11:19 am

1 stop15h 44m

$142

St. LouisNew York

STL - LGA

STLLGA

Lambert-St Louis

Tue 12/23

11:51 am-5:30 pm

2 stops28h 39m

$143

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Cheap one-way flights from St. Louis

Enter your travel dates to find the best prices.
Frontier Logo
7:43 pm - 9:15 pmSTL-DEN
2h 32mnonstop
$33Frontier
Find Deal
Wed, Dec 17
Frontier Logo
7:43 pm - 9:15 pmSTL-DEN
2h 32mnonstop
$34Frontier
Find Deal
Wed, Dec 17
Frontier Logo
10:42 am - 1:27 pmSTL-ATL
1h 45mnonstop
$37Frontier
Find Deal
Sun, Dec 14
Frontier Logo
10:42 am - 1:27 pmSTL-ATL
1h 45mnonstop
$38Frontier
Find Deal
Fri, Dec 12
Frontier Logo
8:32 pm - 11:16 pmSTL-ATL
1h 44mnonstop
$39Frontier
Find Deal
Fri, Jan 16
Southwest Logo
6:25 am - 9:55 amSTL-MCO
2h 30mnonstop
$59Southwest
Find Deal
Tue, Feb 24
Delta Logo
9:50 am - 1:14 pmSTL-LGA
2h 24mnonstop
$141Delta
Find Deal
Tue, Dec 16
Delta Logo
4:32 pm - 8:05 pmSTL-JFK
2h 33mnonstop
$141Delta
Find Deal
Tue, Dec 16
American Airlines Logo
6:35 pm - 11:19 amSTL-JFK
15h 44m1 stop
$142American Airlines
Find Deal
Sat, Feb 14
Spirit Airlines Logo
11:51 am - 5:30 pmSTL-LGA
28h 39m2 stops
$143Spirit Airlines
Find Deal
Tue, Dec 23

Flights from St. Louis - Travel Insights & Trends

Get data-powered insights and trends into flights from St. Louis to help you craft the best travel plan.

What are the most popular domestic flights out of Lambert-St Louis?

Departing from Lambert-St Louis, the top domestic flight destinations, based on momondo users' searches, include Jacksonville, Los Angeles, Fort Lauderdale, Tampa, and Detroit.

What are the cheapest cities to fly to from St. Louis?

The cheapest city to fly to from St. Louis currently is Denver at $44. The next cheapest destinations are Chicago, Fort Lauderdale, Miami, Orlando and Atlanta.

Frequently asked questions regarding flights from St. Louis

Which airlines are currently offering the cheapest flights from St. Louis?

Our data suggests that currently, the cheapest flights from St. Louis are being offered by Delta, Southern / Mokulele, and American Airlines. For example, Delta flights from St. Louis to Detroit Metropolitan Wayne County Airport, start at $41, Southern / Mokulele flights from St. Louis to Burlington, Iowa cost around $49, and American Airlines flights from St. Louis to Denver are around $50.

What is the cheapest flight available from St. Louis?

Currently, the cheapest flight from St. Louis found by our users is for $37 to Denver. Prices will vary according to several factors such as the departure date and time, but on average you can expect to pay around $544 to travel from St. Louis to Denver.

Which destinations have the most frequent flights from St. Louis?

Chicago, Chicago O'Hare Intl Airport and Atlanta are currently the destinations served most frequently from St. Louis, with 51, 48 and 22 flights per day on average, respectively.

Which airlines can you fly with from St. Louis?

Airlines including American Airlines, Delta and United Airlines frequently fly from St. Louis. You can view other airlines by performing a quick search in the form above.

What is the cheapest first class flight from St. Louis?

If you are looking for a cheap first class flight, consider flights to New York LaGuardia Airport, for which the starting price of a first class seat can be as low as $515.

When did momondo last update prices for flights from Lambert-St Louis Airport?

Prices for flights from Lambert-St Louis Airport were last updated today.

How many operators does momondo search for flights from Lambert-St Louis Airport?

How old do you have to be to fly from Lambert-St Louis Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Lambert-St Louis Airport.

What documentation or ID do you need to fly to Lambert-St Louis Airport?

The travel and health documents required for your trip to Lambert-St Louis Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Lambert-St Louis Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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