Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from New York LaGuardia Airport to St. Louis from C$ 203

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 12/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Early arrival? Instantly customize your results

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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
7:20 a.m. - 9:25 a.m.
LGA
-
STL
3h 05mdirect
Southwest Logo
5:45 p.m. - 9:05 p.m.
STL
-
LGA
2h 20mdirect
C$ 388Southwest
Sat, 24 Jan - Sat, 24 Jan
Southwest Logo
7:20 a.m. - 4:50 p.m.
LGA
-
STL
10h 30m2 stops
Southwest Logo
5:30 a.m. - 3:20 p.m.
STL
-
LGA
8h 50m1 stop
C$ 394Southwest
Tue, 13 Jan - Sat, 17 Jan
United Airlines Logo
5:15 p.m. - 9:13 p.m.
LGA
-
STL
4h 58m1 stop
United Airlines Logo
3:11 p.m. - 9:59 p.m.
STL
-
LGA
5h 48m1 stop
C$ 396United Airlines
Thu, 8 Jan - Sat, 10 Jan
Delta Logo
6:00 a.m. - 9:39 a.m.
LGA
-
STL
4h 39m1 stop
Delta Logo
5:32 p.m. - 9:00 p.m.
STL
-
LGA
2h 28mdirect
C$ 399Delta
Fri, 16 Jan - Sun, 18 Jan
Delta Logo
6:05 p.m. - 8:06 p.m.
LGA
-
STL
3h 01mdirect
Delta Logo
6:25 a.m. - 9:54 a.m.
STL
-
LGA
2h 29mdirect
C$ 404Delta
Fri, 16 Jan - Mon, 19 Jan
Delta Logo
6:30 a.m. - 8:34 a.m.
LGA
-
STL
3h 04mdirect
Delta Logo
9:45 a.m. - 1:11 p.m.
STL
-
LGA
2h 26mdirect
C$ 408Delta
Tue, 6 Jan - Thu, 8 Jan
Southwest Logo
7:05 p.m. - 10:55 p.m.
LGA
-
STL
4h 50m1 stop
Southwest Logo
6:30 p.m. - 9:50 p.m.
STL
-
LGA
2h 20mdirect
C$ 410Southwest
Sat, 14 Mar - Mon, 16 Mar
Delta Logo
10:30 a.m. - 12:33 p.m.
LGA
-
STL
3h 03mdirect
Delta Logo
7:25 a.m. - 10:49 a.m.
STL
-
LGA
2h 24mdirect
C$ 412Delta
Fri, 9 Jan - Sat, 10 Jan
Southwest Logo
7:20 a.m. - 4:50 p.m.
LGA
-
STL
10h 30m2 stops
Southwest Logo
6:55 a.m. - 3:10 p.m.
STL
-
LGA
7h 15m1 stop
C$ 415Southwest
Thu, 8 Jan - Sat, 10 Jan
Delta Logo
6:30 a.m. - 8:34 a.m.
LGA
-
STL
3h 04mdirect
Delta Logo
6:25 a.m. - 9:54 a.m.
STL
-
LGA
2h 29mdirect
C$ 416Delta
Thu, 8 Jan - Thu, 15 Jan

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 Jan
LGA7:20 a.m.New York LaGuardia
3h 05m
STL9:25 a.m.Lambert-St Louis
24 Jan
STL5:45 p.m.Lambert-St Louis
2h 20m
LGA9:05 p.m.New York LaGuardia
C$ 388
Find similar
Southwest
13 Jan
LGA7:20 a.m.New York LaGuardia
10h 30m
2 stops
STL4:50 p.m.Lambert-St Louis
17 Jan
STL5:30 a.m.Lambert-St Louis
8h 50m
1 stop
LGA3:20 p.m.New York LaGuardia
C$ 394
Find similar
Southwest
14 Mar
LGA7:05 p.m.New York LaGuardia
4h 50m
1 stop
STL10:55 p.m.Lambert-St Louis
16 Mar
STL6:30 p.m.Lambert-St Louis
2h 20m
LGA9:50 p.m.New York LaGuardia
C$ 410
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
8 Jan
LGA9:15 a.m.New York LaGuardia
6h 15m
1 stop
STL2:30 p.m.Lambert-St Louis
10 Jan
STL3:11 p.m.Lambert-St Louis
5h 03m
1 stop
LGA9:14 p.m.New York LaGuardia
C$ 396
Find similar
United Airlines
14 Feb
LGA4:25 p.m.New York LaGuardia
5h 35m
1 stop
STL9:00 p.m.Lambert-St Louis
15 Feb
STL6:30 a.m.Lambert-St Louis
6h 44m
1 stop
LGA2:14 p.m.New York LaGuardia
C$ 423
Find similar
United Airlines
9 Jan
LGA9:15 a.m.New York LaGuardia
6h 15m
1 stop
STL2:30 p.m.Lambert-St Louis
10 Jan
STL3:11 p.m.Lambert-St Louis
5h 03m
1 stop
LGA9:14 p.m.New York LaGuardia
C$ 440
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 11 December 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

Sat 24/1

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

Nonstop3h 05m

Lambert-St Louis

Sat 24/1

5:45 p.m.-9:05 p.m.

Nonstop2h 20m

C$ 388

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Tue 13/1

7:20 a.m.-4:50 p.m.

2 stops10h 30m

Lambert-St Louis

Sat 17/1

5:30 a.m.-3:20 p.m.

1 stop8h 50m

C$ 394

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Thu 8/1

5:15 p.m.-9:13 p.m.

1 stop4h 58m

Lambert-St Louis

Sat 10/1

3:11 p.m.-9:59 p.m.

1 stop5h 48m

C$ 396

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Fri 16/1

6:00 a.m.-9:39 a.m.

1 stop4h 39m

Lambert-St Louis

Sun 18/1

5:32 p.m.-9:00 p.m.

Nonstop2h 28m

C$ 399

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

6:25 a.m.-9:54 a.m.

Nonstop2h 29m

C$ 404

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Tue 6/1

6:30 a.m.-8:34 a.m.

Nonstop3h 04m

Lambert-St Louis

Thu 8/1

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

Nonstop2h 26m

C$ 408

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Sat 14/3

7:05 p.m.-10:55 p.m.

1 stop4h 50m

Lambert-St Louis

Mon 16/3

6:30 p.m.-9:50 p.m.

Nonstop2h 20m

C$ 410

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Fri 9/1

10:30 a.m.-12:33 p.m.

Nonstop3h 03m

Lambert-St Louis

Sat 10/1

7:25 a.m.-10:49 a.m.

Nonstop2h 24m

C$ 412

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Thu 8/1

7:20 a.m.-4:50 p.m.

2 stops10h 30m

Lambert-St Louis

Sat 10/1

6:55 a.m.-3:10 p.m.

1 stop7h 15m

C$ 415

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Thu 8/1

6:30 a.m.-8:34 a.m.

Nonstop3h 04m

Lambert-St Louis

Thu 15/1

6:25 a.m.-9:54 a.m.

Nonstop2h 29m

C$ 416

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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$ 404. 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$ 414.

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$ 411. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are C$ 654 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$ 466 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$ 350 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 December 2025, prices for New York LaGuardia Airport to St. Louis flights are approximately 19% 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 59m

Direct flights

Every day

Airports in St. Louis

1 airport
The fastest flight from New York LaGuardia Airport to St. Louis takes 2h 59m
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. 2h 59m 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.

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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 10/1
Sat 17/1
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States