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Cheap flights from New York LaGuardia Airport to St. Louis from C$ 170

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 20/1. 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
1:55 p.m. - 3:52 p.m.LGA-STL
2h 57mdirect
Delta Logo
6:00 a.m. - 9:29 a.m.STL-LGA
2h 29mdirect
C$ 338Delta
Find Deal
Fri, 20 Feb - Wed, 25 Feb
Southwest Logo
7:25 a.m. - 9:20 a.m.LGA-STL
2h 55mdirect
Southwest Logo
7:10 p.m. - 10:25 p.m.STL-LGA
2h 15mdirect
C$ 366Southwest
Find Deal
Sat, 15 Nov - Sat, 22 Nov
Delta Logo
6:30 a.m. - 8:13 a.m.LGA-STL
2h 43mdirect
Delta Logo
1:35 p.m. - 5:02 p.m.STL-LGA
2h 27mdirect
C$ 374Delta
Find Deal
Fri, 31 Oct - Wed, 5 Nov
Delta Logo
1:59 p.m. - 3:50 p.m.LGA-STL
2h 51mdirect
Delta Logo
6:00 a.m. - 9:27 a.m.STL-LGA
2h 27mdirect
C$ 376Delta
Find Deal
Thu, 20 Nov - Mon, 24 Nov
Delta Logo
10:29 a.m. - 12:20 p.m.LGA-STL
2h 51mdirect
Delta Logo
1:35 p.m. - 5:02 p.m.STL-LGA
2h 27mdirect
C$ 377Delta
Find Deal
Fri, 31 Oct - Sat, 1 Nov
Southwest Logo
6:30 p.m. - 8:20 p.m.LGA-STL
2h 50mdirect
Southwest Logo
6:15 p.m. - 11:25 p.m.STL-LGA
4h 10m1 stop
C$ 380Southwest
Find Deal
Tue, 11 Nov - Tue, 18 Nov
Delta Logo
1:45 p.m. - 3:29 p.m.LGA-STL
2h 44mdirect
Delta Logo
6:40 a.m. - 11:50 a.m.STL-LGA
4h 10m1 stop
C$ 388Delta
Find Deal
Fri, 31 Oct - Wed, 5 Nov
Delta Logo
6:30 a.m. - 8:13 a.m.LGA-STL
2h 43mdirect
Delta Logo
3:59 p.m. - 9:45 p.m.STL-LGA
4h 46m1 stop
C$ 391Delta
Find Deal
Fri, 31 Oct - Sat, 1 Nov
United Airlines Logo
8:15 a.m. - 12:21 p.m.LGA-STL
5h 06m1 stop
United Airlines Logo
10:30 a.m. - 5:09 p.m.STL-LGA
5h 39m1 stop
C$ 420United Airlines
Find Deal
Sat, 21 Feb - Mon, 23 Feb
United Airlines Logo
10:15 a.m. - 2:24 p.m.LGA-STL
5h 09m1 stop
United Airlines Logo
10:00 a.m. - 4:11 p.m.STL-LGA
5h 11m1 stop
C$ 440United Airlines
Find Deal
Sat, 1 Nov - Tue, 4 Nov

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
LGA10:00 a.m.New York LaGuardia
2h 55m
STL11:55 a.m.Lambert-St Louis
25 Feb
STL5:00 p.m.Lambert-St Louis
2h 30m
LGA8:30 p.m.New York LaGuardia
C$ 338
Find similar
Delta
31 Oct
LGA6:30 a.m.New York LaGuardia
2h 43m
STL8:13 a.m.Lambert-St Louis
5 Nov
STL1:35 p.m.Lambert-St Louis
2h 27m
LGA5:02 p.m.New York LaGuardia
C$ 374
Find similar
Delta
20 Nov
LGA1:59 p.m.New York LaGuardia
2h 51m
STL3:50 p.m.Lambert-St Louis
24 Nov
STL6:00 a.m.Lambert-St Louis
2h 27m
LGA9:27 a.m.New York LaGuardia
C$ 376
Find similar

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
15 Nov
LGA7:25 a.m.New York LaGuardia
2h 55m
STL9:20 a.m.Lambert-St Louis
22 Nov
STL7:10 p.m.Lambert-St Louis
2h 15m
LGA10:25 p.m.New York LaGuardia
C$ 366
Find similar
Southwest
11 Nov
LGA2:10 p.m.New York LaGuardia
7h 50m
1 stop
STL9:00 p.m.Lambert-St Louis
18 Nov
STL8:05 p.m.Lambert-St Louis
2h 15m
LGA11:20 p.m.New York LaGuardia
C$ 380
Find similar
Southwest
11 Nov
LGA2:10 p.m.New York LaGuardia
7h 50m
1 stop
STL9:00 p.m.Lambert-St Louis
18 Nov
STL5:35 a.m.Lambert-St Louis
7h 05m
1 stop
LGA1:40 p.m.New York LaGuardia
C$ 394
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 14 October 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

1:55 p.m.-3:52 p.m.

Nonstop2h 57m

Lambert-St Louis

Wed 25/2

6:00 a.m.-9:29 a.m.

Nonstop2h 29m

C$ 338

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Sat 15/11

7:25 a.m.-9:20 a.m.

Nonstop2h 55m

Lambert-St Louis

Sat 22/11

7:10 p.m.-10:25 p.m.

Nonstop2h 15m

C$ 366

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Fri 31/10

6:30 a.m.-8:13 a.m.

Nonstop2h 43m

Lambert-St Louis

Wed 5/11

1:35 p.m.-5:02 p.m.

Nonstop2h 27m

C$ 374

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Thu 20/11

1:59 p.m.-3:50 p.m.

Nonstop2h 51m

Lambert-St Louis

Mon 24/11

6:00 a.m.-9:27 a.m.

Nonstop2h 27m

C$ 376

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Fri 31/10

10:29 a.m.-12:20 p.m.

Nonstop2h 51m

Lambert-St Louis

Sat 1/11

1:35 p.m.-5:02 p.m.

Nonstop2h 27m

C$ 377

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Tue 11/11

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

Nonstop2h 50m

Lambert-St Louis

Tue 18/11

6:15 p.m.-11:25 p.m.

1 stop4h 10m

C$ 380

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Fri 31/10

1:45 p.m.-3:29 p.m.

Nonstop2h 44m

Lambert-St Louis

Wed 5/11

6:40 a.m.-11:50 a.m.

1 stop4h 10m

C$ 388

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Fri 31/10

6:30 a.m.-8:13 a.m.

Nonstop2h 43m

Lambert-St Louis

Sat 1/11

3:59 p.m.-9:45 p.m.

1 stop4h 46m

C$ 391

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Sat 21/2

8:15 a.m.-12:21 p.m.

1 stop5h 06m

Lambert-St Louis

Mon 23/2

10:30 a.m.-5:09 p.m.

1 stop5h 39m

C$ 420

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Sat 1/11

10:15 a.m.-2:24 p.m.

1 stop5h 09m

Lambert-St Louis

Tue 4/11

10:00 a.m.-4:11 p.m.

1 stop5h 11m

C$ 440

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$ 418. 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$ 472 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$ 367 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 October 2025, prices for New York LaGuardia Airport to St. Louis flights are approximately 16% 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

Fastest flight time

2h 43m

Direct flights

Every day

Airports in St. Louis

1 airport
The fastest flight from New York LaGuardia Airport to St. Louis takes 2h 43m
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 43m 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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