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$147+ Cheap flights from LaGuardia, NY (LGA) to St. Louis (STL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/12. Fares are subject to change and may not be available on all flights or dates of travel.
LGA — STL
Aug 25 — Sep 11
Tue 8/25
Tue 9/1
1 adult, Economy
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Cheapflights Tip: The best prices from New York LaGuardia to Lambert-St Louis are usually found in October or April, booked 86 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

Cheap flight deals from LaGuardia to St. Louis

Cheapest flights from LaGuardia to St. Louis
Explore the most affordable flight options available from LaGuardia to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 26, 2026.

This Kiwi.com deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/116:29 am
LGA
-
STL
1 stop12h 08m
Frontier
Sun 8/166:34 pm
STL
-
LGA
1 stop25h 10m
Frontier
Deal found 7/23$299
This Kiwi.com deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:18 am
LGA
-
STL
1 stop12h 04m
Frontier
Mon 8/246:17 pm
STL
-
LGA
2 stops22h 28m
Frontier
Deal found 7/25$302
This Southwest deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/208:35 am
LGA
-
STL
Nonstop2h 45m
Southwest
Thu 8/202:20 pm
STL
-
LGA
1 stop6h 05m
Southwest
Deal found 7/24$303
This Delta deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/136:30 am
LGA
-
STL
Nonstop2h 38m
Delta
Mon 8/172:10 pm
STL
-
LGA
1 stop4h 37m
Delta
Deal found 7/23$304
This Frontier deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/3010:00 pm
LGA
-
STL
1 stop11h 57m
Frontier
Tue 9/2910:35 am
STL
-
LGA
1 stop11h 40m
Frontier
Deal found 7/23$305
This Kiwi.com deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/286:18 am
LGA
-
STL
1 stop12h 04m
Frontier
Sun 8/306:17 pm
STL
-
LGA
1 stop20h 43m
Frontier
Deal found 7/25$306
This Frontier deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/3010:00 pm
LGA
-
STL
1 stop11h 57m
Frontier
Mon 9/2810:35 am
STL
-
LGA
1 stop6h 00m
Frontier
Deal found 7/23$307
This Southwest deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/56:00 am
LGA
-
STL
2 stops10h 30m
Southwest
Mon 9/75:40 am
STL
-
LGA
Nonstop2h 20m
Southwest
Deal found 7/24$308
This Kiwi.com deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1410:00 pm
LGA
-
STL
1 stop11h 57m
Frontier
Sun 8/166:34 pm
STL
-
LGA
1 stop20h 40m
Frontier
Deal found 7/22$309
This Frontier deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/3010:00 pm
LGA
-
STL
1 stop11h 57m
Frontier
Fri 9/2510:35 am
STL
-
LGA
1 stop11h 40m
Frontier
Deal found 7/23$311
This CheapOair deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1110:00 pm
LGA
-
STL
1 stop11h 57m
Frontier
Wed 8/124:09 pm
STL
-
LGA
1 stop24h 36m
Frontier
Deal found 7/26$312

Find flight deals from LaGuardia to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from LaGuardia (LGA) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$299
(Kiwi.com)

One-way from

$147
(Delta)

Popular in

July

Cheapest in

October

Average price

$477

Good round-trip deal

$363 or less

Good one-way deal

$201 or less
Provider with most accurate pricing for New York LaGuardia-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for New York LaGuardia-Lambert-St Louis flights.
Search Deals
From New York LaGuardia to Lambert-St Louis
Search Deals
One-way flight from New York LaGuardia to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($37 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from New York LaGuardia to Lambert-St Louis.
Search Deals
Price to beat on a one-way flight from New York LaGuardia to Lambert-St Louis.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from LaGuardia 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, Cheapflights users made 2,558,603 searches. Data last updated July 26, 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

Cheapest round-trip

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Tue 10/6

9:45 am-5:30 pm

1 stop8h 45m

Lambert-St Louis

Mon 10/12

5:40 am-9:00 am

Nonstop2h 20m

$303

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Sat 9/5

6:00 am-3:30 pm

2 stops10h 30m

Lambert-St Louis

Mon 9/7

5:40 am-9:00 am

Nonstop2h 20m

$308

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Fri 10/16

3:00 pm-9:23 pm

1 stop7h 23m

Lambert-St Louis

Tue 10/20

7:00 am-10:26 am

Nonstop2h 26m

$339

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Sat 8/15

1:45 pm-3:33 pm

Nonstop2h 48m

Lambert-St Louis

Mon 8/17

5:25 pm-9:03 pm

Nonstop2h 38m

$340
Quickest round-trip

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Fri 10/9

6:05 am-7:45 am

Nonstop2h 40m

Lambert-St Louis

Mon 10/12

5:40 am-9:00 am

Nonstop2h 20m

$346

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Mon 8/24

2:35 pm-4:20 pm

Nonstop2h 45m

Lambert-St Louis

Sun 8/30

8:25 am-4:40 pm

1 stop7h 15m

$356

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Sun 10/18

6:00 am-9:44 am

1 stop4h 44m

Lambert-St Louis

Sat 10/31

8:00 am-11:24 am

Nonstop2h 24m

$361

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Fri 8/28

6:30 am-8:08 am

Nonstop2h 38m

Lambert-St Louis

Fri 8/28

5:23 pm-11:24 pm

1 stop5h 01m

$375

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Tue 8/11

6:30 am-8:08 am

Nonstop2h 38m

Lambert-St Louis

Wed 8/12

6:05 am-9:38 am

Nonstop2h 33m

$378

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Tue 8/4

4:00 pm-11:21 pm

1 stop8h 21m

Lambert-St Louis

Sat 8/15

7:05 am-10:35 am

Nonstop2h 30m

$388

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/25

Showing 1-10 of 22 resultsSorted by cheapest first
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Compare providers for flights from LaGuardia to St. Louis

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from LaGuardia to St. Louis in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on New York LaGuardia Airport-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on New York LaGuardia Airport-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from New York LaGuardia Airport-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on New York LaGuardia Airport-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for New York LaGuardia Airport-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from LaGuardia to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from LaGuardia with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from New York LaGuardia Airport to St. Louis

How far ahead should I book a flight from New York LaGuardia Airport to St. Louis?

To ensure you get the cheapest price possible for a flight from New York LaGuardia Airport to St. Louis, you should look to book at least 75 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from New York LaGuardia Airport to St. Louis?

Currently, October is the cheapest month in which you can book a flight from New York LaGuardia Airport to St. Louis (average of $313). Flying from New York LaGuardia Airport to St. Louis in July is currently the most expensive (average of $487). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LGA to STL?

Find hourly flight availability from LaGuardia to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 26, 2026.

It’s typically best to fly out from New York LaGuardia Airport to St. Louis in the evening. Doing so could potentially save you 7% on the flight price compared to flying in the afternoon, which is usually more expensive.

What is the cheapest day to fly from New York LaGuardia Airport to St. Louis?

Use this chart to determine the cheapest time to fly round-trip from LaGuardia to St. Louis. Price data was last updated on July 18, 2026.

Travelers seeking maximum savings on their New York LaGuardia Airport to St. Louis flight should consider departing on Saturday evenings when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from New York LaGuardia Airport to St. Louis?

Airfare is below average for this route at the moment.

New York LaGuardia Airport to St. Louis flights typically cost between $343 and $495 in August.
The cheapest round-trip price found within the last 5 days was $299 on Frontier (Aug 11-Aug 16).

The best insider tips for New York LaGuardia Airport to St. Louis flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your New York LaGuardia Airport to St. Louis trip
Our travel experts
Brandon Schultz

Brandon Schultz

Expert on LGA

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more
Taryn White

Taryn White

Expert on STL

Taryn White is a freelance travel writer, digital creator, and travel advisor who has visited nearly 100 countries and all 50 states. She’s familiar with many airports and enjoys beach hopping, boutique hotels, spa experiences, and exploring local culture. Her work has appeared in Travel + Leisure, Condé Nast Traveler, National Geographic, Smithsonian Magazine, AFAR, and more.

Read more

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated July 26, 2026.
Peruse reviews from past customers who have flown with Southwest,Delta, andAmerican Airlines from New York LaGuardia Airport to St. Louis to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,231 reviews

Food

7.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.
Southwest
8.0
Very good
4,231 reviews
Southwest
8.0
Very good
4,231 reviews

Food

7.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.
Delta
7.8
Good
8,489 reviews
Southwest
8.0
Very good
4,231 reviews

Food

7.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.
American Airlines
7.1
Good
11,845 reviews
Southwest
8.0
Very good
4,231 reviews

Food

7.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Related info for your journey

Find useful and relevant information for your journey from LaGuardia to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to St. Louis from New York LaGuardia?

    Lambert-St Louis (STL) is the airport you will fly into if you book a flight from New York LaGuardia to St. Louis. You should not have trouble finding flights to Lambert-St Louis from New York LaGuardia; the airport handles an average of 10 inbound flights from New York LaGuardia per day. You should also have plenty of airline options to choose from since 3 airlines have flights to the St. Louis airport from New York LaGuardia. It is only a 12.7 mi journey from Lambert-St Louis (STL) to St. Louis’s city center.

  • How long is the flight from New York LaGuardia Airport to St. Louis?

    A quick flight from New York LaGuardia Airport to St. Louis can take about 7h 23m. Southwest provides one of the quickest options available for as low as $339. The distance between New York LaGuardia Airport and St. Louis is about 885 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from New York LaGuardia Airport to St. Louis round-trip?

    Flying on Southwest is currently your cheapest option to St. Louis, with prices starting at $231. Additional round-trip tickets that might be worth considering are offered by American Airlines and Delta, with the lowest prices starting at $253 and $256, respectively. Southwest is 41% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from New York LaGuardia Airport to St. Louis one-way?

    To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at $126. American Airlines flights start at $146 while deals on Southwest start at $146 one-way.

  • What are the most reliable airlines from New York LaGuardia Airport to St. Louis?

    Consider WestJet (78%), Southwest (73%) or Republic Airways (69%) when booking your flight. These represent the most reliable airlines when flying from New York LaGuardia Airport to St. Louis.

  • What are the cheapest flights from New York LaGuardia Airport to St. Louis?

    Looking at all options, your cheapest flight can be booked for $141. While the most popular route (New York LaGuardia - Lambert-St Louis) can be booked for $268 on average, our data indicates $352 when flying from New York LaGuardia Airport to St. Louis.

  • Can I find deals for flights from LaGuardia to St. Louis that include hotel bookings?

    Yes. In addition to deals on LaGuardia to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from LaGuardia to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from LaGuardia to St. Louis.

  • Can I find deals for business class flights from LaGuardia to St. Louis?

    Yes. Cheapflights offers flight deals from LaGuardia to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from New York LaGuardia Airport to St. Louis?

    Currently, October is the cheapest month in which you can book a flight from New York LaGuardia Airport to St. Louis (average of $313). Flying from New York LaGuardia Airport to St. Louis in July is currently the most expensive (average of $487). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Fenton
Swansea
Fairview Heights
Eureka
Maryland Heights
Collinsville
Wentzville
Glencoe
Chesterfield
Farmington

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Top 3 airlines flying from LaGuardia to St. Louis

Discover the top 3 airlines that operate flights from LaGuardia to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$231Average$426FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$253Average$372FlexibilityNo cancel feeOn-time71%
DeltaCheapest$256Average$418FlexibilityNo cancel feeOn-timeN/A

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