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Cheap flights from New York LaGuardia Airport to St. Louis from $109

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 12/6. 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

Frontier Logo
6:30 am - 3:04 pmLGA-STL
9h 34m1 stop
Frontier Logo
4:00 pm - 11:57 pmSTL-LGA
6h 57m1 stop
$209Frontier
Find Deal
Thu, Oct 2 - Mon, Oct 6
American Airlines Logo
7:00 am - 12:11 pmLGA-STL
6h 11m1 stop
American Airlines Logo
4:58 pm - 8:19 pmSTL-LGA
2h 21mnonstop
$211American Airlines
Find Deal
Fri, Feb 20 - Wed, Feb 25
Frontier Logo
12:56 pm - 8:37 pmLGA-STL
8h 41m1 stop
Frontier Logo
4:00 pm - 4:08 pmSTL-LGA
23h 08m2 stops
$212Frontier
Find Deal
Fri, Oct 3 - Sun, Oct 5
Delta Logo
6:20 pm - 8:17 pmLGA-STL
2h 57mnonstop
Delta Logo
7:05 am - 10:33 amSTL-LGA
2h 28mnonstop
$214Delta
Find Deal
Tue, Dec 9 - Sat, Dec 13
Southwest Logo
7:20 am - 4:05 pmLGA-STL
9h 45m2 stops
Southwest Logo
5:45 am - 1:25 pmSTL-LGA
6h 40m1 stop
$215Southwest
Find Deal
Sat, Nov 1 - Tue, Nov 4
Delta Logo
4:00 pm - 9:15 pmLGA-STL
6h 15m1 stop
Delta Logo
5:40 pm - 9:03 pmSTL-LGA
2h 23mnonstop
$216Delta
Find Deal
Fri, Oct 3 - Tue, Oct 7
Southwest Logo
2:45 pm - 11:30 pmLGA-STL
9h 45m1 stop
Southwest Logo
7:10 am - 10:30 amSTL-LGA
2h 20mnonstop
$221Southwest
Find Deal
Fri, Nov 7 - Sun, Nov 9
Logo
10:55 pm - 9:07 amLGA-STL
11h 12m1 stop
Logo
7:52 pm - 5:30 pmSTL-LGA
20h 38m2 stops
$233
Find Deal
Tue, Oct 7 - Tue, Oct 14
Logo
6:30 am - 3:04 pmLGA-STL
9h 34m1 stop
Logo
7:55 pm - 10:38 pmSTL-LGA
25h 43m2 stops
$240
Find Deal
Sun, Sep 21 - Wed, Sep 24
United Airlines Logo
4:28 pm - 9:37 pmLGA-STL
6h 09m1 stop
United Airlines Logo
12:31 pm - 6:07 pmSTL-LGA
4h 36m1 stop
$251United Airlines
Find Deal
Fri, Oct 24 - Sun, Oct 26

Delta flights from New York LaGuardia Airport to St. Louis

Our best Delta deals on New York LaGuardia Airport to St. Louis flight tickets
Delta
Dec 9
LGA6:20 pmNew York LaGuardia
2h 57m
STL8:17 pmLambert-St Louis
Dec 13
STL7:05 amLambert-St Louis
2h 28m
LGA10:33 amNew York LaGuardia
$214
Find similar
Delta
Oct 3
LGA4:00 pmNew York LaGuardia
6h 15m
1 stop
STL9:15 pmLambert-St Louis
Oct 7
STL5:40 pmLambert-St Louis
2h 23m
LGA9:03 pmNew York LaGuardia
$216
Find similar
Delta
Oct 3
LGA1:59 pmNew York LaGuardia
4h 48m
1 stop
STL5:47 pmLambert-St Louis
Oct 6
STL5:40 pmLambert-St Louis
2h 23m
LGA9:03 pmNew York LaGuardia
$217
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
Oct 2
LGA6:30 amNew York LaGuardia
9h 34m
1 stop
STL3:04 pmLambert-St Louis
Oct 6
STL4:00 pmLambert-St Louis
6h 57m
1 stop
LGA11:57 pmNew York LaGuardia
$209
Find similar
Frontier
Oct 3
LGA12:56 pmNew York LaGuardia
8h 41m
1 stop
STL8:37 pmLambert-St Louis
Oct 5
STL4:00 pmLambert-St Louis
23h 08m
2 stops
LGA4:08 pmNew York LaGuardia
$212
Find similar
Frontier
Sep 17
LGA10:56 pmNew York LaGuardia
11h 10m
1 stop
STL9:06 amLambert-St Louis
Sep 21
STL10:39 amLambert-St Louis
9h 20m
1 stop
LGA8:59 pmNew York LaGuardia
$217
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 September 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

Thu 10/2

6:30 am-3:04 pm

1 stop9h 34m

Lambert-St Louis

Mon 10/6

4:00 pm-11:57 pm

1 stop6h 57m

$209

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Fri 2/20

7:00 am-12:11 pm

1 stop6h 11m

Lambert-St Louis

Wed 2/25

4:58 pm-8:19 pm

Nonstop2h 21m

$211

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Fri 10/3

12:56 pm-8:37 pm

1 stop8h 41m

Lambert-St Louis

Sun 10/5

4:00 pm-4:08 pm

2 stops23h 08m

$212

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Tue 12/9

6:20 pm-8:17 pm

Nonstop2h 57m

Lambert-St Louis

Sat 12/13

7:05 am-10:33 am

Nonstop2h 28m

$214

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Sat 11/1

7:20 am-4:05 pm

2 stops9h 45m

Lambert-St Louis

Tue 11/4

5:45 am-1:25 pm

1 stop6h 40m

$215

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Fri 10/3

4:00 pm-9:15 pm

1 stop6h 15m

Lambert-St Louis

Tue 10/7

5:40 pm-9:03 pm

Nonstop2h 23m

$216

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Fri 11/7

2:45 pm-11:30 pm

1 stop9h 45m

Lambert-St Louis

Sun 11/9

7:10 am-10:30 am

Nonstop2h 20m

$221

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Tue 10/7

10:55 pm-9:07 am

1 stop11h 12m

Lambert-St Louis

Tue 10/14

7:52 pm-5:30 pm

2 stops20h 38m

$233

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Sun 9/21

6:30 am-3:04 pm

1 stop9h 34m

Lambert-St Louis

Wed 9/24

7:55 pm-10:38 pm

2 stops25h 43m

$240

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Fri 10/24

4:28 pm-9:37 pm

1 stop6h 09m

Lambert-St Louis

Sun 10/26

12:31 pm-6:07 pm

1 stop4h 36m

$251

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 $297. The month of January is another great option to travel to St. Louis, with average flight prices from New York LaGuardia Airport averaging around $308.

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 $329. 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 $438. 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 $348 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 $385 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 $336 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 $262 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 2% 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 September 2025, prices for New York LaGuardia Airport to St. Louis flights are approximately 8% cheaper 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

$148

Fastest flight time

2h 35m

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 $148. The best round-trip flight deal from New York LaGuardia Airport to St. Louis found on momondo in the last 72 hours is $275.
The fastest flight from New York LaGuardia Airport to St. Louis takes 2h 35m
Direct flights go from New York LaGuardia Airport to St. Louis every day.
There is 1 airport near St. Louis: 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 35m.

  • 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 $190Free CancellationRating
7.9
7,960 reviews
Search Delta flights
SouthwestPriceFrom $197Free CancellationRating
8.0
4,248 reviews
Search Southwest flights
American AirlinesPriceFrom $203Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

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

    Across 20 Southwest flights from New York LaGuardia Airport to St. Louis this week, the average price was $336, with the best Southwest deals starting from $197 round-trip. 4,248 users have rated Southwest on momondo, with an average score of 8.0/10.

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

    The best Delta deal for New York LaGuardia Airport to St. Louis flight tickets found on momondo in the last 72 hours was $190, round-trip. It should be noted that an average Delta flight deal for this route in this time was higher, at $345 round-trip. Delta operates 19 flights out of New York LaGuardia Airport into St. Louis in an average week, so prices vary by time and availability. 7,960 Delta 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
Florissant
Maryland Heights
O'Fallon
Fenton
Collinsville
Wentzville
Alton
St. Peters
Farmington
Festus
Glencoe
Clayton
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

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.
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