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Cheap flights from New York LaGuardia Airport to St. Louis from C$ 197

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 3/3. 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
4:45 p.m. - 6:50 p.m.
LGA
-
STL
3h 05mdirect
Southwest Logo
7:50 p.m. - 11:05 p.m.
STL
-
LGA
2h 15mdirect
C$ 361Southwest
Tue, 24 Feb - Tue, 3 Mar
Southwest Logo
6:00 a.m. - 11:15 a.m.
LGA
-
STL
6h 15m
1 stop
Southwest Logo
7:40 p.m. - 10:55 p.m.
STL
-
LGA
2h 15mdirect
C$ 365Southwest
Wed, 4 Mar - Sat, 7 Mar
Southwest Logo
4:45 p.m. - 6:50 p.m.
LGA
-
STL
3h 05mdirect
Southwest Logo
12:00 p.m. - 3:30 p.m.
STL
-
LGA
2h 30mdirect
C$ 371Southwest
Tue, 24 Feb - Wed, 25 Feb
Southwest Logo
6:30 a.m. - 5:10 p.m.
LGA
-
STL
11h 40m
2 stops
Southwest Logo
7:50 p.m. - 11:05 p.m.
STL
-
LGA
2h 15mdirect
C$ 372Southwest
Tue, 3 Mar - Tue, 3 Mar
Southwest Logo
7:20 a.m. - 1:35 p.m.
LGA
-
STL
7h 15m
1 stop
Southwest Logo
7:50 p.m. - 11:05 p.m.
STL
-
LGA
2h 15mdirect
C$ 375Southwest
Tue, 24 Feb - Tue, 3 Mar
Southwest Logo
6:00 a.m. - 8:00 a.m.
LGA
-
STL
3h 00mdirect
Southwest Logo
6:00 a.m. - 9:20 a.m.
STL
-
LGA
2h 20mdirect
C$ 377Southwest
Thu, 5 Mar - Tue, 10 Mar
United Airlines Logo
7:10 a.m. - 12:22 p.m.
LGA
-
STL
6h 12m
1 stop
United Airlines Logo
7:45 a.m. - 1:18 p.m.
STL
-
LGA
4h 33m
1 stop
C$ 379United Airlines
Wed, 1 Apr - Wed, 15 Apr
Delta Logo
3:30 p.m. - 5:29 p.m.
LGA
-
STL
2h 59mdirect
Delta Logo
5:35 p.m. - 9:01 p.m.
STL
-
LGA
2h 26mdirect
C$ 383Delta
Sat, 28 Feb - Mon, 2 Mar
Southwest Logo
4:45 p.m. - 6:50 p.m.
LGA
-
STL
3h 05mdirect
Southwest Logo
6:00 a.m. - 4:25 p.m.
STL
-
LGA
9h 25m
1 stop
C$ 384Southwest
Tue, 24 Feb - Wed, 25 Feb
Delta Logo
3:30 p.m. - 5:29 p.m.
LGA
-
STL
2h 59mdirect
Delta Logo
6:30 a.m. - 9:53 a.m.
STL
-
LGA
2h 23mdirect
C$ 386Delta
Sat, 28 Feb - Mon, 2 Mar

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
24 Feb
LGA4:45 p.m.New York LaGuardia
3h 05m
STL6:50 p.m.Lambert-St Louis
3 Mar
STL7:50 p.m.Lambert-St Louis
2h 15m
LGA11:05 p.m.New York LaGuardia
C$ 361
Southwest
4 Mar
LGA6:00 a.m.New York LaGuardia
6h 15m
1 stop
STL11:15 a.m.Lambert-St Louis
7 Mar
STL7:40 p.m.Lambert-St Louis
2h 15m
LGA10:55 p.m.New York LaGuardia
C$ 365
Southwest
24 Feb
LGA4:45 p.m.New York LaGuardia
3h 05m
STL6:50 p.m.Lambert-St Louis
25 Feb
STL12:00 p.m.Lambert-St Louis
2h 30m
LGA3:30 p.m.New York LaGuardia
C$ 371

United Airlines flights from New York LaGuardia Airport to St. Louis

Our best United Airlines deals on New York LaGuardia Airport to St. Louis flight tickets
United Airlines
1 Apr
LGA7:10 a.m.New York LaGuardia
6h 12m
1 stop
STL12:22 p.m.Lambert-St Louis
15 Apr
STL7:45 a.m.Lambert-St Louis
4h 33m
1 stop
LGA1:18 p.m.New York LaGuardia
C$ 379
United Airlines
25 Feb
LGA1:15 p.m.New York LaGuardia
9h 25m
1 stop
STL9:40 p.m.Lambert-St Louis
28 Feb
STL11:25 a.m.Lambert-St Louis
4h 48m
1 stop
LGA5:13 p.m.New York LaGuardia
C$ 425
United Airlines
27 Mar
LGA4:25 p.m.New York LaGuardia
5h 58m
1 stop
STL9:23 p.m.Lambert-St Louis
4 Apr
STL9:10 a.m.Lambert-St Louis
7h 03m
1 stop
LGA5:13 p.m.New York LaGuardia
C$ 433

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 96,600 searches. Data last updated 29 January 2026.
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

Tue 24/2

4:45 p.m.-6:50 p.m.

Nonstop3h 05m

Lambert-St Louis

Tue 3/3

7:50 p.m.-11:05 p.m.

Nonstop2h 15m

C$ 361

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Wed 4/3

6:00 a.m.-11:15 a.m.

1 stop6h 15m

Lambert-St Louis

Sat 7/3

7:40 p.m.-10:55 p.m.

Nonstop2h 15m

C$ 365

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Tue 24/2

4:45 p.m.-6:50 p.m.

Nonstop3h 05m

Lambert-St Louis

Wed 25/2

12:00 p.m.-3:30 p.m.

Nonstop2h 30m

C$ 371

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Tue 3/3

6:30 a.m.-5:10 p.m.

2 stops11h 40m

Lambert-St Louis

Tue 3/3

7:50 p.m.-11:05 p.m.

Nonstop2h 15m

C$ 372

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Tue 24/2

7:20 a.m.-1:35 p.m.

1 stop7h 15m

Lambert-St Louis

Tue 3/3

7:50 p.m.-11:05 p.m.

Nonstop2h 15m

C$ 375

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Thu 5/3

6:00 a.m.-8:00 a.m.

Nonstop3h 00m

Lambert-St Louis

Tue 10/3

6:00 a.m.-9:20 a.m.

Nonstop2h 20m

C$ 377

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Wed 1/4

7:10 a.m.-12:22 p.m.

1 stop6h 12m

Lambert-St Louis

Wed 15/4

7:45 a.m.-1:18 p.m.

1 stop4h 33m

C$ 379

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Sat 28/2

3:30 p.m.-5:29 p.m.

Nonstop2h 59m

Lambert-St Louis

Mon 2/3

5:35 p.m.-9:01 p.m.

Nonstop2h 26m

C$ 383

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Tue 24/2

4:45 p.m.-6:50 p.m.

Nonstop3h 05m

Lambert-St Louis

Wed 25/2

6:00 a.m.-4:25 p.m.

1 stop9h 25m

C$ 384

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Sat 28/2

3:30 p.m.-5:29 p.m.

Nonstop2h 59m

Lambert-St Louis

Mon 2/3

6:30 a.m.-9:53 a.m.

Nonstop2h 23m

C$ 386

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 typical price of a round-trip flight between New York LaGuardia Airport and St. Louis?

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

The month of March is, on average, the cheapest month to fly to St. Louis from New York LaGuardia Airport, with most prices found around C$ 398. If you don’t want to visit St. Louis in March, then you should wait until August to fly from New York LaGuardia Airport, when ticket prices are also cheap, with an average price of C$ 409.

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

The cheapest time of day to fly to St. Louis is in the afternoon when flights can be purchased for as low as C$ 614. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are C$ 643 on average. Flights to St. Louis from New York LaGuardia Airport in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.

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 C$ 462 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 C$ 358 on momondo.

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

There is only 1 cabin class 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.

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

As of January 2026, prices for New York LaGuardia Airport to St. Louis flights are approximately 100% 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

Fastest flight time

3h 04m

Direct flights

Every day

Airports in St. Louis

1 airport
The fastest flight from New York LaGuardia Airport to St. Louis takes 3h 04m
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?

    The straight-line distance from New York LaGuardia to Lambert-St Louis is 1413.8 km. 3h 04m is a normal flight duration for this route.

  • 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 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 required travel and health documents for your Lambert-St Louis Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Lambert-St Louis Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

Travelling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Chesterfield

Why use momondo?

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

It is quick and easy to find New York to St. Louis flights 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 from New York to St. Louis with flexible booking policies on momondo?

Yes. All flights to St. Louis from New York on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once all potential New York to 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 from New York to St. Louis right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to St. Louis from New York. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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