Flights to Lambert-St Louis

$29 Cheap flights to St. Louis

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to St. Louis departing on 10/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.

Find the cheapest flights from the United States to St. Louis

Cheap round-trip flights

Frontier Logo
7:30 am - 9:22 amDFW-STL
1h 52mnonstop
Frontier Logo
10:17 am - 12:14 pmSTL-DFW
1h 57mnonstop
$102Frontier
Find Deal
jue., oct. 16 - dom., oct. 19
Frontier Logo
2:16 pm - 3:04 pmATL-STL
1h 48mnonstop
Frontier Logo
4:00 pm - 6:44 pmSTL-ATL
1h 44mnonstop
$104Frontier
Find Deal
dom., sep. 28 - lun., sep. 29
American Airlines Logo
9:07 pm - 10:50 pmDFW-STL
1h 43mnonstop
American Airlines Logo
8:50 am - 10:46 amSTL-DFW
1h 56mnonstop
$139American Airlines
Find Deal
mar., sep. 16 - mar., sep. 23
Southwest Logo
8:20 am - 9:05 amATL-STL
1h 45mnonstop
Southwest Logo
7:45 am - 10:20 amSTL-ATL
1h 35mnonstop
$147Southwest
Find Deal
vie., oct. 3 - lun., oct. 6
American Airlines Logo
7:20 am - 9:14 amDFW-STL
1h 54mnonstop
American Airlines Logo
7:16 am - 9:14 amSTL-DFW
1h 58mnonstop
$154American Airlines
Find Deal
sáb., sep. 13 - sáb., sep. 20
Southwest Logo
6:15 am - 7:50 amLGA-STL
2h 35mnonstop
Southwest Logo
7:20 am - 10:45 amSTL-LGA
2h 25mnonstop
$241Southwest
Find Deal
mié., sep. 17 - mié., sep. 24
United Airlines Logo
9:48 pm - 11:44 pmEWR-STL
2h 56mnonstop
United Airlines Logo
5:22 pm - 9:00 pmSTL-EWR
2h 38mnonstop
$241United Airlines
Find Deal
vie., sep. 19 - dom., sep. 21
Delta Logo
2:55 pm - 4:40 pmJFK-STL
2h 45mnonstop
Delta Logo
6:00 am - 2:27 pmSTL-JFK
7h 27m1 stop
$251Delta
Find Deal
mié., dic. 24 - mié., dic. 31
United Airlines Logo
10:00 am - 2:19 pmEWR-STL
5h 19m1 stop
United Airlines Logo
7:08 am - 10:44 amSTL-EWR
2h 36mnonstop
$251United Airlines
Find Deal
mié., sep. 17 - mié., sep. 24
Delta Logo
6:30 am - 8:13 amLGA-STL
2h 43mnonstop
Delta Logo
1:35 pm - 5:02 pmSTL-LGA
2h 27mnonstop
$256Delta
Find Deal
jue., oct. 9 - sáb., oct. 11

momondo Fare Finder

 
Locate flights to Lambert-St Louis that fit your budget, with regularly updated fares and availability. In the last 7 days, momondo users made a total of 832,500 searches and data was last updated on agosto 18, 2025.
Use the filters below to find and compare flights to St. Louis that are best for you.

Fly from

Route

Depart

Return

Price

DallasSt. Louis

DFW - STL

DFWSTL

Dallas/Fort Worth

jue. 10/16

7:30 am-9:22 am

Nonstop1h 52m

Lambert-St Louis

dom. 10/19

10:17 am-12:14 pm

Nonstop1h 57m

$102

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

dom. 9/28

2:16 pm-3:04 pm

Nonstop1h 48m

Lambert-St Louis

lun. 9/29

4:00 pm-6:44 pm

Nonstop1h 44m

$104

DallasSt. Louis

DFW - STL

DFWSTL

Dallas/Fort Worth

mar. 9/16

9:07 pm-10:50 pm

Nonstop1h 43m

Lambert-St Louis

mar. 9/23

8:50 am-10:46 am

Nonstop1h 56m

$139

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

vie. 10/3

8:20 am-9:05 am

Nonstop1h 45m

Lambert-St Louis

lun. 10/6

7:45 am-10:20 am

Nonstop1h 35m

$147

DallasSt. Louis

DFW - STL

DFWSTL

Dallas/Fort Worth

sáb. 9/13

7:20 am-9:14 am

Nonstop1h 54m

Lambert-St Louis

sáb. 9/20

7:16 am-9:14 am

Nonstop1h 58m

$154

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

mié. 9/17

6:15 am-7:50 am

Nonstop2h 35m

Lambert-St Louis

mié. 9/24

7:20 am-10:45 am

Nonstop2h 25m

$241

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

vie. 9/19

9:48 pm-11:44 pm

Nonstop2h 56m

Lambert-St Louis

dom. 9/21

5:22 pm-9:00 pm

Nonstop2h 38m

$241

New YorkSt. Louis

JFK - STL

JFKSTL

New York John F Kennedy Intl

mié. 12/24

2:55 pm-4:40 pm

Nonstop2h 45m

Lambert-St Louis

mié. 12/31

6:00 am-2:27 pm

1 stop7h 27m

$251

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

mié. 9/17

10:00 am-2:19 pm

1 stop5h 19m

Lambert-St Louis

mié. 9/24

7:08 am-10:44 am

Nonstop2h 36m

$251

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

jue. 10/9

6:30 am-8:13 am

Nonstop2h 43m

Lambert-St Louis

sáb. 10/11

1:35 pm-5:02 pm

Nonstop2h 27m

$256

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to St. Louis from

St. Louis flights insights and trends

Explore insights for your St. Louis flight to craft the best travel plan

What is the cheapest month to fly to St. Louis?

In general, January is the cheapest month to fly from United States to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $300. The month of March is another great option to travel to St. Louis, with average flight prices from United States averaging around $308.

What is the absolute cheapest flight to St. Louis?

Users booking trips to St. Louis from Gulf Shores found flights 55% cheaper than the average price of flights to St. Louis. To find the cheapest price to St. Louis from your area, use momondo’s Airport-to-Airport Pricing Tool.
See prices from:

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Tuesday when prices can be found for as low as $333. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $440. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from United States in the morning is the least expensive time of day to depart. momondo users have found prices as low as $349 when looking at flights departing in the morning. At noon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $394 per ticket.

Cheapest flights to Lambert-St Louis

Find the cheapest flights to Lambert-St Louis from your nearest city or airport
CHEAPEST MONTH TO FLY TO ST. LOUIS FROM LOS ANGELESAugust14% cheaperFlying from Los Angeles to St. Louis costs on average just $345 in August
MOST EXPENSIVE MONTH TO FLY TO ST. LOUIS FROM LOS ANGELESDecember22% more expensiveIt costs about $490 for flights to St. Louis from Los Angeles in December
MOST POPULAR MONTH TO FLY TO ST. LOUIS FROM LOS ANGELESJuly307% more users visitedMore momondo users searched in flights to St. Louis from Los Angeles in July than any other month

Cheap St. Louis flight deals and tips

Summary info about St. Louis flight prices, duration and airlines

Best One-Way Price

$29

Best Round-Trip Price

$102

Fastest flight time

1h 45m

Popular in

December
The best one-way flight price to St. Louis from United States in the last 72 hours is $29 (Dallas/Fort Worth to Lambert-St Louis).
The best round-trip flight price to St. Louis from United States in the last 72 hours is $102 (Dallas/Fort Worth to Lambert-St Louis).
The fastest flight to St. Louis from United States takes 1h 45m (Dallas/Fort Worth to Lambert-St Louis).
December has the highest demand for flights to St. Louis, with a 8% price increase on average.

Frequently asked questions about flying to St. Louis

How far in advance should I book a flight to St. Louis?

The best time to book a flight to St. Louis from United States is 56 days out, which is when prices tend to be around $335. In the past 72 hours, momondo users found flights from United States to St. Louis for as low as $221.

Is there an alternative airport near St. Louis?

Finding an alternative and possibly cheaper destination airport near St. Louis is possible. If you are planning a flight to St. Louis, consider booking flights to Belleville Airport (22 mi from St. Louis city center), Marion Williamson County Airport (88 mi from St. Louis city center) or Springfield Capital Airport (88 mi from St. Louis city center).

Is there a cheaper alternative to flying into St. Louis?

The cheapest airport near St. Louis is typically Marion Williamson County Airport with an average price of $122/person. These prices vary based on where travelers are coming from. It is suggested that travelers looking to save money try momondo’s Airport-to-Airport Pricing Tool.

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

Prices for flights to Lambert-St Louis Airport are refreshed on a daily basis.

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

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel to 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.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Fairview Heights
Hermann
Maryland Heights
Florissant
O'Fallon
Fenton
Wentzville
Collinsville
Alton
St. Peters
Farmington
Festus
Glencoe
Eureka
Clayton
Edwardsville
Litchfield
Shrewsbury

Why use momondo?

Why should I use momondo to find a flight deal to St. Louis?

It is quick and easy to find flights to St. Louis on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to St. Louis that suits you.

Can I find flights to St. Louis with flexible booking policies on momondo?

momondo does allow users to show only those flights to St. Louis which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights to St. Louis?

Once all potential St. Louis flight options are in front of you momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight to St. Louis right now. Can momondo alert me if prices change?

Price alerts on flights to St. Louis are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Lambert-St Louis trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
sáb. 8/23
sáb. 8/30

Find better results for your trip to St. Louis