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Cheap flights from New York LaGuardia Airport to St. Louis from $145

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from New York LaGuardia Airport to St. Louis departing on 2/13. 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 the cheapest flights from New York LaGuardia Airport to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
7:20 am - 9:25 am
LGA
-
STL
3h 05mnonstop
Southwest Logo
5:45 pm - 9:05 pm
STL
-
LGA
2h 20mnonstop
$281Southwest
Sat, Jan 24 - Sat, Jan 24
Frontier Logo
12:30 pm - 10:33 pm
LGA
-
STL
11h 03m1 stop
Frontier Logo
10:42 am - 11:05 pm
STL
-
LGA
11h 23m1 stop
$282Frontier
Fri, Feb 27 - Sun, Mar 1
Multiple Airlines Logo
9:55 am - 10:33 pm
LGA
-
STL
13h 38m1 stop
Multiple Airlines Logo
8:36 pm - 4:28 pm
STL
-
LGA
18h 52m2 stops
$285Multiple Airlines
Fri, Feb 20 - Sun, Feb 22
Southwest Logo
7:20 am - 4:50 pm
LGA
-
STL
10h 30m2 stops
Southwest Logo
5:30 am - 3:20 pm
STL
-
LGA
8h 50m1 stop
$286Southwest
Tue, Jan 13 - Sat, Jan 17
American Airlines Logo
4:17 pm - 9:51 pm
LGA
-
STL
6h 34m1 stop
American Airlines Logo
6:00 am - 11:18 am
STL
-
LGA
4h 18m1 stop
$287American Airlines
Fri, Jan 9 - Sat, Jan 10
Frontier Logo
12:05 pm - 3:53 pm
LGA
-
STL
28h 48m2 stops
Frontier Logo
8:17 pm - 4:28 pm
STL
-
LGA
19h 11m1 stop
$288Frontier
Tue, Feb 10 - Mon, Feb 16
Frontier Logo
10:55 pm - 10:02 am
LGA
-
STL
12h 07m1 stop
Frontier Logo
9:46 pm - 10:00 pm
STL
-
LGA
23h 14m2 stops
$289Frontier
Fri, Jan 9 - Sun, Jan 11
American Airlines Logo
8:45 am - 10:51 am
LGA
-
STL
3h 06mnonstop
American Airlines Logo
2:54 pm - 9:29 pm
STL
-
LGA
5h 35m1 stop
$291American Airlines
Tue, Jan 6 - Tue, Jan 6
Delta Logo
6:05 pm - 8:06 pm
LGA
-
STL
3h 01mnonstop
Delta Logo
9:45 am - 1:11 pm
STL
-
LGA
2h 26mnonstop
$293Delta
Fri, Jan 23 - Sun, Jan 25
Frontier Logo
5:30 pm - 7:50 am
LGA
-
STL
15h 20m2 stops
Frontier Logo
5:11 pm - 11:29 am
STL
-
LGA
17h 18m1 stop
$294Frontier
Thu, Jan 8 - Thu, Jan 15

Southwest flights from New York LaGuardia Airport to St. Louis

Our best Southwest deals on New York LaGuardia Airport to St. Louis flight tickets
Southwest
Jan 24
LGA7:20 amNew York LaGuardia
3h 05m
STL9:25 amLambert-St Louis
Jan 24
STL5:45 pmLambert-St Louis
2h 20m
LGA9:05 pmNew York LaGuardia
$281
Find similar
Southwest
Jan 13
LGA7:20 amNew York LaGuardia
10h 30m
2 stops
STL4:50 pmLambert-St Louis
Jan 17
STL5:30 amLambert-St Louis
8h 50m
1 stop
LGA3:20 pmNew York LaGuardia
$286
Find similar
Southwest
Mar 14
LGA7:05 pmNew York LaGuardia
4h 50m
1 stop
STL10:55 pmLambert-St Louis
Mar 16
STL6:30 pmLambert-St Louis
2h 20m
LGA9:50 pmNew York LaGuardia
$297
Find similar

Frontier flights from New York LaGuardia Airport to St. Louis

Our best Frontier deals on New York LaGuardia Airport to St. Louis flight tickets
Frontier
Feb 27
LGA12:30 pmNew York LaGuardia
11h 03m
1 stop
STL10:33 pmLambert-St Louis
Mar 1
STL10:42 amLambert-St Louis
11h 23m
1 stop
LGA11:05 pmNew York LaGuardia
$282
Find similar
Frontier
Feb 10
LGA12:05 pmNew York LaGuardia
28h 48m
2 stops
STL3:53 pmLambert-St Louis
Feb 16
STL8:17 pmLambert-St Louis
19h 11m
1 stop
LGA4:28 pmNew York LaGuardia
$288
Find similar
Frontier
Jan 9
LGA10:55 pmNew York LaGuardia
12h 07m
1 stop
STL10:02 amLambert-St Louis
Jan 11
STL9:46 pmLambert-St Louis
23h 14m
2 stops
LGA10:00 pmNew York LaGuardia
$289
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from New York LaGuardia Airport to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated December 11, 2025.
Use the filters below to find and compare flights from New York LaGuardia Airport to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Sat 1/24

7:20 am-9:25 am

Nonstop3h 05m

Lambert-St Louis

Sat 1/24

5:45 pm-9:05 pm

Nonstop2h 20m

$281

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Fri 2/27

12:30 pm-10:33 pm

1 stop11h 03m

Lambert-St Louis

Sun 3/1

10:42 am-11:05 pm

1 stop11h 23m

$282

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Fri 2/20

9:55 am-10:33 pm

1 stop13h 38m

Lambert-St Louis

Sun 2/22

8:36 pm-4:28 pm

2 stops18h 52m

$285

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Tue 1/13

7:20 am-4:50 pm

2 stops10h 30m

Lambert-St Louis

Sat 1/17

5:30 am-3:20 pm

1 stop8h 50m

$286

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Fri 1/9

4:17 pm-9:51 pm

1 stop6h 34m

Lambert-St Louis

Sat 1/10

6:00 am-11:18 am

1 stop4h 18m

$287

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Tue 2/10

12:05 pm-3:53 pm

2 stops28h 48m

Lambert-St Louis

Mon 2/16

8:17 pm-4:28 pm

1 stop19h 11m

$288

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Fri 1/9

10:55 pm-10:02 am

1 stop12h 07m

Lambert-St Louis

Sun 1/11

9:46 pm-10:00 pm

2 stops23h 14m

$289

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Tue 1/6

8:45 am-10:51 am

Nonstop3h 06m

Lambert-St Louis

Tue 1/6

2:54 pm-9:29 pm

1 stop5h 35m

$291

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Fri 1/23

6:05 pm-8:06 pm

Nonstop3h 01m

Lambert-St Louis

Sun 1/25

9:45 am-1:11 pm

Nonstop2h 26m

$293

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Thu 1/8

5:30 pm-7:50 am

2 stops15h 20m

Lambert-St Louis

Thu 1/15

5:11 pm-11:29 am

1 stop17h 18m

$294

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to St. Louis from

How to get the cheapest flight ticket from New York LaGuardia Airport to St. Louis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

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

In general, March is the cheapest month to fly from New York LaGuardia Airport to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $293. The month of January is another great option to travel to St. Louis, with average flight prices from New York LaGuardia Airport averaging around $300.

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 Wednesday when prices can be found for as low as $311. 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 $442. 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 New York LaGuardia Airport in the morning is the least expensive time of day to depart. momondo users have found prices as low as $343 when looking at flights departing in the morning. In the evening is when there is more demand to fly to St. Louis, so prices are often more expensive at around $370 per ticket.

What is the cheapest New York LaGuardia to Lambert-St Louis flight route?

Fly from New York LaGuardia to Lambert-St Louis for the best New York LaGuardia - Lambert-St Louis flight prices

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

You are more likely to see cheaper flights to St. Louis from New York LaGuardia Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around $338 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to St. Louis from New York LaGuardia Airport for as low as $254 on momondo.

What cabin class options are available on New York LaGuardia to Lambert-St Louis flights?

There are 4 cabin classes available to choose from on New York LaGuardia to Lambert-St Louis flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on New York LaGuardia Airport to St. Louis flights?

You could potentially save up to 14% on your flight if you consider stops on a New York LaGuardia Airport to St. Louis flight.

How have New York LaGuardia Airport to St. Louis flight prices changed over time?

As of December 2025, prices for New York LaGuardia Airport to St. Louis flights are approximately 19% more expensive when compared to flights at the same time last year.

When to book flights from New York LaGuardia Airport to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from New York LaGuardia Airport to St. Louis according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap New York LaGuardia Airport to St. Louis (LGA to STL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from New York LaGuardia Airport to St. Louis

Best Price Found

$175

Fastest flight time

2h 45m

Direct flights

Every day

Airports in St. Louis

1 airport
The best one-way flight to St. Louis from New York LaGuardia Airport in the past 72 hours is $175. The best round-trip flight deal from New York LaGuardia Airport to St. Louis found on momondo in the last 72 hours is $327.
The fastest flight from New York LaGuardia Airport to St. Louis takes 2h 45m
Direct flights go from New York LaGuardia Airport to St. Louis every day.
There is 1 airport in St. Louis. From New York LaGuardia Airport there are direct flights to Lambert-St Louis (STL).
Search flight deals

  • How far is New York LaGuardia to Lambert-St Louis by plane?

    A flight from New York LaGuardia to Lambert-St Louis will travel around 878.5 mi. By plane, this route typically takes 2h 45m.

  • When did momondo last update prices for flights from New York LaGuardia Airport to Lambert-St Louis Airport?

    Prices for flights from New York LaGuardia Airport to Lambert-St Louis Airport refresh daily.

  • How many operators does momondo search for flights from New York LaGuardia Airport to Lambert-St Louis Airport?

  • How old do you have to be to fly from New York LaGuardia Airport 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 from New York LaGuardia Airport 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.

  • What is the most popular plane model from New York LaGuardia Airport to St. Louis?

  • What is the most popular airline from New York LaGuardia Airport to St. Louis?

Best airlines flying from New York LaGuardia Airport to St. Louis

Compare and see reviews for airlines that fly from New York LaGuardia Airport to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $195Free CancellationRating
7.9
8,008 reviews
Search Delta flights
SouthwestPriceFrom $197Free CancellationRating
7.9
4,253 reviews
Search Southwest flights
American AirlinesPriceFrom $207Free CancellationRating
7.2
11,050 reviews
Search American Airlines flights

  • Delta Flights From New York LaGuardia Airport to St. Louis

    Across 24 Delta flights from New York LaGuardia Airport to St. Louis this week, the average price was $346, with the best Delta deals starting from $195 round-trip. 8,008 users have rated Delta on momondo, with an average score of 7.9/10.

  • Southwest Flights From New York LaGuardia Airport to St. Louis

    The best Southwest deal for New York LaGuardia Airport to St. Louis flight tickets found on momondo in the last 72 hours was $197, round-trip. It should be noted that an average Southwest flight deal for this route in this time was higher, at $326 round-trip. Southwest operates 16 flights out of New York LaGuardia Airport into St. Louis in an average week, so prices vary by time and availability. 4,253 Southwest reviews by users on momondo have scored the airline at 7.9/10.

Traveling to a place near St. Louis?

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

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to St. Louis from New York.

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

All flight searches from New York to St. Louis on momondo can be filtered to show those which offer flexible booking policies.

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

momondo helps you find the best flight between New York and St. Louis by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are simply researching potential flights to St. Louis, momondo offers a useful price alert feature which will track prices for flights to St. Louis from New York and alert you when they change.

An easier way to manage your St. Louis trip

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