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Cheap flights from New York LaGuardia Airport to St. Louis from C$ 198

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 17/12. 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.
Delta Logo
6:55 a.m. - 8:59 a.m.LGA-STL
3h 04mdirect
Delta Logo
6:35 a.m. - 11:59 a.m.STL-LGA
4h 24m1 stop
C$ 388Delta
Find Deal
Fri, 20 Feb - Sun, 22 Feb
Delta Logo
6:30 a.m. - 8:20 a.m.LGA-STL
2h 50mdirect
Delta Logo
1:35 p.m. - 5:04 p.m.STL-LGA
2h 29mdirect
C$ 394Delta
Find Deal
Wed, 3 Dec - Wed, 3 Dec
Southwest Logo
6:05 a.m. - 11:25 a.m.LGA-STL
6h 20m1 stop
Southwest Logo
8:05 p.m. - 11:20 p.m.STL-LGA
2h 15mdirect
C$ 401Southwest
Find Deal
Mon, 15 Dec - Wed, 17 Dec
United Airlines Logo
11:15 a.m. - 3:40 p.m.LGA-STL
5h 25m1 stop
United Airlines Logo
5:27 p.m. - 11:16 p.m.STL-LGA
4h 49m1 stop
C$ 402United Airlines
Find Deal
Thu, 11 Dec - Sat, 13 Dec
Delta Logo
6:59 a.m. - 8:44 a.m.LGA-STL
2h 45mdirect
Delta Logo
5:45 p.m. - 11:43 p.m.STL-LGA
4h 58m1 stop
C$ 405Delta
Find Deal
Tue, 21 Apr - Fri, 1 May
Delta Logo
6:05 p.m. - 8:06 p.m.LGA-STL
3h 01mdirect
Delta Logo
9:45 a.m. - 1:11 p.m.STL-LGA
2h 26mdirect
C$ 410Delta
Find Deal
Fri, 16 Jan - Mon, 19 Jan
Delta Logo
9:45 a.m. - 11:45 a.m.LGA-STL
3h 00mdirect
Delta Logo
6:05 a.m. - 9:33 a.m.STL-LGA
2h 28mdirect
C$ 415Delta
Find Deal
Sat, 6 Dec - Tue, 9 Dec
Southwest Logo
7:15 a.m. - 3:35 p.m.LGA-STL
9h 20m1 stop
Southwest Logo
8:05 p.m. - 11:20 p.m.STL-LGA
2h 15mdirect
C$ 416Southwest
Find Deal
Sat, 13 Dec - Sun, 14 Dec
Delta Logo
6:30 a.m. - 8:20 a.m.LGA-STL
2h 50mdirect
Delta Logo
1:35 p.m. - 5:04 p.m.STL-LGA
2h 29mdirect
C$ 419Delta
Find Deal
Wed, 17 Dec - Thu, 18 Dec
United Airlines Logo
8:15 a.m. - 12:15 p.m.LGA-STL
5h 00m1 stop
United Airlines Logo
5:27 p.m. - 11:16 p.m.STL-LGA
4h 49m1 stop
C$ 422United Airlines
Find Deal
Wed, 3 Dec - Wed, 3 Dec

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
20 Feb
LGA6:55 a.m.New York LaGuardia
3h 04m
STL8:59 a.m.Lambert-St Louis
22 Feb
STL6:35 a.m.Lambert-St Louis
4h 24m
1 stop
LGA11:59 a.m.New York LaGuardia
C$ 388
Find similar
Delta
3 Dec
LGA6:30 a.m.New York LaGuardia
2h 50m
STL8:20 a.m.Lambert-St Louis
3 Dec
STL1:35 p.m.Lambert-St Louis
2h 29m
LGA5:04 p.m.New York LaGuardia
C$ 394
Find similar
Delta
19 Nov
LGA6:30 a.m.New York LaGuardia
2h 54m
STL8:24 a.m.Lambert-St Louis
27 Nov
STL7:35 a.m.Lambert-St Louis
2h 27m
LGA11:02 a.m.New York LaGuardia
C$ 396
Find similar

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
11 Dec
LGA11:15 a.m.New York LaGuardia
5h 25m
1 stop
STL3:40 p.m.Lambert-St Louis
13 Dec
STL5:27 p.m.Lambert-St Louis
4h 49m
1 stop
LGA11:16 p.m.New York LaGuardia
C$ 402
Find similar
United Airlines
3 Dec
LGA8:15 a.m.New York LaGuardia
5h 00m
1 stop
STL12:15 p.m.Lambert-St Louis
3 Dec
STL5:27 p.m.Lambert-St Louis
4h 49m
1 stop
LGA11:16 p.m.New York LaGuardia
C$ 422
Find similar
United Airlines
15 Dec
LGA10:15 a.m.New York LaGuardia
5h 08m
1 stop
STL2:23 p.m.Lambert-St Louis
17 Dec
STL10:00 a.m.Lambert-St Louis
6h 07m
1 stop
LGA5:07 p.m.New York LaGuardia
C$ 443
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 96,600 searches. Data last updated 13 November 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

Fri 20/2

6:55 a.m.-8:59 a.m.

Nonstop3h 04m

Lambert-St Louis

Sun 22/2

6:35 a.m.-11:59 a.m.

1 stop4h 24m

C$ 388

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Wed 3/12

6:30 a.m.-8:20 a.m.

Nonstop2h 50m

Lambert-St Louis

Wed 3/12

1:35 p.m.-5:04 p.m.

Nonstop2h 29m

C$ 394

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Mon 15/12

6:05 a.m.-11:25 a.m.

1 stop6h 20m

Lambert-St Louis

Wed 17/12

8:05 p.m.-11:20 p.m.

Nonstop2h 15m

C$ 401

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Thu 11/12

11:15 a.m.-3:40 p.m.

1 stop5h 25m

Lambert-St Louis

Sat 13/12

5:27 p.m.-11:16 p.m.

1 stop4h 49m

C$ 402

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Tue 21/4

6:59 a.m.-8:44 a.m.

Nonstop2h 45m

Lambert-St Louis

Fri 1/5

5:45 p.m.-11:43 p.m.

1 stop4h 58m

C$ 405

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Fri 16/1

6:05 p.m.-8:06 p.m.

Nonstop3h 01m

Lambert-St Louis

Mon 19/1

9:45 a.m.-1:11 p.m.

Nonstop2h 26m

C$ 410

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Sat 6/12

9:45 a.m.-11:45 a.m.

Nonstop3h 00m

Lambert-St Louis

Tue 9/12

6:05 a.m.-9:33 a.m.

Nonstop2h 28m

C$ 415

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Sat 13/12

7:15 a.m.-3:35 p.m.

1 stop9h 20m

Lambert-St Louis

Sun 14/12

8:05 p.m.-11:20 p.m.

Nonstop2h 15m

C$ 416

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Wed 17/12

6:30 a.m.-8:20 a.m.

Nonstop2h 50m

Lambert-St Louis

Thu 18/12

1:35 p.m.-5:04 p.m.

Nonstop2h 29m

C$ 419

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Wed 3/12

8:15 a.m.-12:15 p.m.

1 stop5h 00m

Lambert-St Louis

Wed 3/12

5:27 p.m.-11:16 p.m.

1 stop4h 49m

C$ 422

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?

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$ 413. 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$ 422.

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$ 417. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are C$ 664 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$ 481 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$ 371 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 November 2025, prices for New York LaGuardia Airport to St. Louis flights are approximately 71% 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

2h 45m

Direct flights

Every day

Airports in St. Louis

1 airport
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 near St. Louis: 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. 2h 45m 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
Litchfield

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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