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Cheap flights from New York LaGuardia Airport to St. Louis from C$ 136

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 27/9. 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

Delta Logo
6:20 a.m. - 7:56 a.m.LGA-STL
2h 36mdirect
Delta Logo
6:05 a.m. - 9:33 a.m.STL-LGA
2h 28mdirect
C$ 271Delta
Find Deal
Thu, 11 Sep - Sun, 14 Sep
Southwest Logo
2:30 p.m. - 8:05 p.m.LGA-STL
6h 35m1 stop
Southwest Logo
5:35 p.m. - 9:00 p.m.STL-LGA
2h 25mdirect
C$ 285Southwest
Find Deal
Wed, 10 Sep - Thu, 11 Sep
Southwest Logo
10:55 a.m. - 5:50 p.m.LGA-STL
7h 55m2 stops
Southwest Logo
8:00 p.m. - 11:20 p.m.STL-LGA
2h 20mdirect
C$ 292Southwest
Find Deal
Tue, 9 Sep - Fri, 12 Sep
Southwest Logo
12:40 p.m. - 7:20 p.m.LGA-STL
7h 40m1 stop
Southwest Logo
6:40 a.m. - 11:55 a.m.STL-LGA
4h 15m1 stop
C$ 299Southwest
Find Deal
Thu, 6 Nov - Sun, 9 Nov
Delta Logo
1:45 p.m. - 3:25 p.m.LGA-STL
2h 40mdirect
Delta Logo
1:15 p.m. - 4:45 p.m.STL-LGA
2h 30mdirect
C$ 301Delta
Find Deal
Wed, 24 Sep - Sat, 27 Sep
Delta Logo
6:20 a.m. - 7:56 a.m.LGA-STL
2h 36mdirect
Delta Logo
1:15 p.m. - 4:45 p.m.STL-LGA
2h 30mdirect
C$ 305Delta
Find Deal
Thu, 2 Oct - Thu, 2 Oct
Delta Logo
6:20 p.m. - 8:05 p.m.LGA-STL
2h 45mdirect
Delta Logo
6:05 a.m. - 9:33 a.m.STL-LGA
2h 28mdirect
C$ 312Delta
Find Deal
Wed, 17 Sep - Sun, 21 Sep
Southwest Logo
6:30 a.m. - 8:05 a.m.LGA-STL
2h 35mdirect
Southwest Logo
10:00 a.m. - 1:20 p.m.STL-LGA
2h 20mdirect
C$ 315Southwest
Find Deal
Sun, 31 Aug - Tue, 2 Sep
Southwest Logo
7:25 a.m. - 1:50 p.m.LGA-STL
7h 25m1 stop
Southwest Logo
7:40 p.m. - 11:05 p.m.STL-LGA
2h 25mdirect
C$ 319Southwest
Find Deal
Thu, 11 Sep - Sun, 14 Sep
United Airlines Logo
9:18 a.m. - 2:19 p.m.LGA-STL
6h 01m1 stop
United Airlines Logo
5:30 p.m. - 11:24 p.m.STL-LGA
4h 54m1 stop
C$ 436United Airlines
Find Deal
Wed, 17 Sep - Mon, 22 Sep

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
11 Sep
LGA6:20 a.m.New York LaGuardia
2h 36m
STL7:56 a.m.Lambert-St Louis
14 Sep
STL6:05 a.m.Lambert-St Louis
2h 28m
LGA9:33 a.m.New York LaGuardia
C$ 271
Find similar
Delta
24 Sep
LGA1:45 p.m.New York LaGuardia
2h 40m
STL3:25 p.m.Lambert-St Louis
27 Sep
STL1:15 p.m.Lambert-St Louis
2h 30m
LGA4:45 p.m.New York LaGuardia
C$ 301
Find similar
Delta
2 Oct
LGA6:20 a.m.New York LaGuardia
2h 36m
STL7:56 a.m.Lambert-St Louis
2 Oct
STL1:15 p.m.Lambert-St Louis
2h 30m
LGA4:45 p.m.New York LaGuardia
C$ 305
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
17 Sep
LGA9:18 a.m.New York LaGuardia
6h 01m
1 stop
STL2:19 p.m.Lambert-St Louis
22 Sep
STL5:30 p.m.Lambert-St Louis
4h 54m
1 stop
LGA11:24 p.m.New York LaGuardia
C$ 436
Find similar
United Airlines
12 Aug
LGA7:20 a.m.New York LaGuardia
6h 07m
1 stop
STL12:27 p.m.Lambert-St Louis
13 Aug
STL5:00 a.m.Lambert-St Louis
5h 18m
1 stop
LGA11:18 a.m.New York LaGuardia
C$ 530
Find similar
United Airlines
2 Aug
LGA8:25 a.m.New York LaGuardia
5h 21m
1 stop
STL12:46 p.m.Lambert-St Louis
2 Aug
STL5:30 p.m.Lambert-St Louis
4h 52m
1 stop
LGA11:22 p.m.New York LaGuardia
C$ 550
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 30 July 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 11/9

6:20 a.m.-7:56 a.m.

Nonstop2h 36m

Lambert-St Louis

Sun 14/9

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

Nonstop2h 28m

C$ 271

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Wed 10/9

2:30 p.m.-8:05 p.m.

1 stop6h 35m

Lambert-St Louis

Thu 11/9

5:35 p.m.-9:00 p.m.

Nonstop2h 25m

C$ 285

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Tue 9/9

10:55 a.m.-5:50 p.m.

2 stops7h 55m

Lambert-St Louis

Fri 12/9

8:00 p.m.-11:20 p.m.

Nonstop2h 20m

C$ 292

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Thu 6/11

12:40 p.m.-7:20 p.m.

1 stop7h 40m

Lambert-St Louis

Sun 9/11

6:40 a.m.-11:55 a.m.

1 stop4h 15m

C$ 299

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Wed 24/9

1:45 p.m.-3:25 p.m.

Nonstop2h 40m

Lambert-St Louis

Sat 27/9

1:15 p.m.-4:45 p.m.

Nonstop2h 30m

C$ 301

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Thu 2/10

6:20 a.m.-7:56 a.m.

Nonstop2h 36m

Lambert-St Louis

Thu 2/10

1:15 p.m.-4:45 p.m.

Nonstop2h 30m

C$ 305

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Wed 17/9

6:20 p.m.-8:05 p.m.

Nonstop2h 45m

Lambert-St Louis

Sun 21/9

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

Nonstop2h 28m

C$ 312

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Sun 31/8

6:30 a.m.-8:05 a.m.

Nonstop2h 35m

Lambert-St Louis

Tue 2/9

10:00 a.m.-1:20 p.m.

Nonstop2h 20m

C$ 315

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Thu 11/9

7:25 a.m.-1:50 p.m.

1 stop7h 25m

Lambert-St Louis

Sun 14/9

7:40 p.m.-11:05 p.m.

Nonstop2h 25m

C$ 319

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Wed 17/9

9:18 a.m.-2:19 p.m.

1 stop6h 01m

Lambert-St Louis

Mon 22/9

5:30 p.m.-11:24 p.m.

1 stop4h 54m

C$ 436

Flights are sorted by cheapest round-trip flights 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$ 409. If you don’t want to visit St. Louis in March, then you should wait until January to fly from New York LaGuardia Airport, when ticket prices are also cheap, with an average price of C$ 424.

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$ 622. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are C$ 652 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$ 463 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$ 362 on momondo.

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

There are 1 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.

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

As of July 2025, prices for New York LaGuardia Airport to St. Louis flights are approximately 26% 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

  • 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 35m 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
Edwardsville
Chesterfield
Collinsville
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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