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St. Louis

$137+ 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 4/15. Fares are subject to change and may not be available on all flights or dates of travel.
LGA — STL
Mar 25 — Apr 11
Wed 3/25
Wed 4/1
1 adult, Economy
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Cheapflights Tip: The best prices from New York LaGuardia to Lambert-St Louis are usually found in August or March, booked 67 days in advance, depart on a Wednesday or Tuesday 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 February 23, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/20. 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 5/1410:00 pm
LGA
-
STL
1 stop9h 50m
Frontier
Fri 5/158:12 pm
STL
-
LGA
2 stops20h 18m
Frontier
Deal found 2/20$274
This Priceline deal was found by Cheapflights users on 2/23. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/712:30 pm
LGA
-
STL
1 stop11h 49m
Frontier
Mon 3/92:09 pm
STL
-
LGA
1 stop8h 06m
Frontier
Deal found 2/23$275
This CheapOair deal was found by Cheapflights users on 2/21. 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.
Wed 3/412:30 pm
LGA
-
STL
1 stop10h 57m
Frontier
Sun 3/87:52 am
STL
-
LGA
1 stop26h 37m
Frontier
Deal found 2/21$277
This Delta deal was found by Cheapflights users on 2/20. 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.
Fri 9/46:59 am
LGA
-
STL
Nonstop2h 45m
Delta
Tue 9/86:00 am
STL
-
LGA
Nonstop2h 27m
Delta
Deal found 2/20$278
This American Airlines deal was found by Cheapflights users on 2/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/134:12 pm
LGA
-
STL
1 stop8h 34m
American Airlines
Thu 4/166:35 am
STL
-
LGA
Nonstop2h 34m
American Airlines
Deal found 2/21$279
This Southwest deal was found by Cheapflights users on 2/22. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/186:55 am
LGA
-
STL
2 stops13h 50m
Southwest
Sat 4/256:10 am
STL
-
LGA
2 stops9h 05m
Southwest
Deal found 2/22$281
This CheapOair deal was found by Cheapflights users on 2/19. 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.
Sat 2/2112:30 pm
LGA
-
STL
1 stop12h 29m
Frontier
Tue 3/33:49 pm
STL
-
LGA
1 stop28h 16m
Frontier
Deal found 2/19$282
This Mytrip deal was found by Cheapflights users on 2/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/248:44 pm
LGA
-
STL
1 stop11h 07m
Frontier
Fri 2/273:49 pm
STL
-
LGA
1 stop18h 19m
Frontier
Deal found 2/19$283
This Delta deal was found by Cheapflights users on 2/20. 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.
Wed 4/110:30 am
LGA
-
STL
Nonstop2h 52m
Delta
Sun 4/56:10 am
STL
-
LGA
Nonstop2h 24m
Delta
Deal found 2/20$285
This Southwest deal was found by Cheapflights users on 2/20. 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.
Tue 3/246:05 am
LGA
-
STL
1 stop9h 30m
Southwest
Tue 3/244:00 pm
STL
-
LGA
1 stop6h 20m
Southwest
Deal found 2/20$286
This Kiwi.com deal was found by Cheapflights users on 2/20. 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.
Mon 3/236:00 am
LGA
-
STL
1 stop8h 34m
Frontier
Mon 3/234:51 pm
STL
-
LGA
1 stop21h 39m
Frontier
Deal found 2/20$287

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 February 23, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$274
(Kiwi.com)

One-way from

$137
(Delta)

Popular in

December

Cheapest in

August

Average price

$363

Good round-trip deal

$318 or less

Good one-way deal

$178 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. 14% potential increase in price ($57 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 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 February 23, 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

LaGuardia

Fly to

St. Louis

Route

Depart

Return

Price

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Thu 3/26

6:55 am-8:44 am

Nonstop2h 49m

Lambert-St Louis

Tue 3/31

5:15 pm-8:35 pm

Nonstop2h 20m

$278

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Thu 5/21

6:30 am-8:13 am

Nonstop2h 43m

Lambert-St Louis

Tue 5/26

5:45 pm-9:14 pm

Nonstop2h 29m

$278

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Sun 4/19

7:38 am-9:27 am

Nonstop2h 49m

Lambert-St Louis

Wed 4/22

12:45 pm-4:15 pm

Nonstop2h 30m

$285

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Tue 4/14

10:06 am-12:05 pm

Nonstop2h 59m

Lambert-St Louis

Thu 4/16

6:25 am-9:55 am

Nonstop2h 30m

$285

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Wed 5/6

7:38 am-9:27 am

Nonstop2h 49m

Lambert-St Louis

Fri 6/19

5:45 pm-11:43 pm

1 stop4h 58m

$288

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Wed 5/13

6:30 am-8:13 am

Nonstop2h 43m

Lambert-St Louis

Sat 5/16

6:40 am-2:04 pm

1 stop6h 24m

$288

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Sat 3/14

6:50 am-8:45 am

Nonstop2h 55m

Lambert-St Louis

Wed 3/18

6:35 pm-9:55 pm

Nonstop2h 20m

$289

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Fri 4/24

6:35 pm-8:30 pm

Nonstop2h 55m

Lambert-St Louis

Mon 4/27

8:00 pm-11:25 pm

Nonstop2h 25m

$297

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Thu 3/26

6:00 am-8:00 am

Nonstop3h 00m

Lambert-St Louis

Thu 3/26

6:30 pm-9:50 pm

Nonstop2h 20m

$297

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Fri 4/24

7:38 am-9:27 am

Nonstop2h 49m

Lambert-St Louis

Sun 4/26

6:25 am-9:55 am

Nonstop2h 30m

$297

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 23 results
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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 February.
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?

Use this chart to determine the optimal time to book a round-trip flight from LaGuardia to St. Louis. Price data was last updated on February 20, 2026.

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 67 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, April is the cheapest month in which you can book a flight from New York LaGuardia Airport to St. Louis (average of $177). Flying from New York LaGuardia Airport to St. Louis in February is currently the most expensive (average of $273). 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 February 23, 2026.

It’s typically best to fly out from New York LaGuardia Airport to St. Louis in the morning. Doing so could potentially save you 8% on the flight price compared to flying in the evening, 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 February 21, 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.

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 February 23, 2026.
Peruse reviews from past customers who have flown with Southwest, Delta, and American 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
4,300 reviews

Food

7.0

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
8.0
Very good
4,300 reviews
Southwest
8.0
Very good
4,300 reviews

Food

7.0

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Delta
7.9
Good
8,235 reviews
Southwest
8.0
Very good
4,300 reviews

Food

7.0

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
American Airlines
7.2
Good
11,339 reviews
Southwest
8.0
Very good
4,300 reviews

Food

7.0

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Frontier
5.7
Fair
3,044 reviews
Southwest
8.0
Very good
4,300 reviews

Food

7.0

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

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 11 inbound flights from New York LaGuardia per day. You should also have plenty of airline options to choose from since 4 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 2h 49m. Delta provides one of the quickest options available for as low as $278. The distance between New York LaGuardia Airport and St. Louis is about 885 mi. Generally, flights for this route are nonstop.

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

    Flying on Frontier is currently your cheapest option to St. Louis, with prices starting at $136. Additional round-trip tickets that might be worth considering are offered by Delta and Southwest, with the lowest prices starting at $194 and $197, respectively. Frontier is 60% 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 Frontier, which is currently one of the cheapest options available, starting at $55. Spirit Airlines flights start at $61 while deals on Southwest start at $98 one-way.

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

    Consider WestJet (76%), Southwest (73%) or Delta (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 $133. While the most popular route (New York LaGuardia - Lambert-St Louis) can be booked for $197 on average, our data indicates $402 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, April is the cheapest month in which you can book a flight from New York LaGuardia Airport to St. Louis (average of $177). Flying from New York LaGuardia Airport to St. Louis in February is currently the most expensive (average of $273). 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
Swansea
Fairview Heights
Fenton
Maryland Heights
Collinsville
Eureka
Wentzville
Glencoe
Chesterfield
Alton
Farmington
Festus

Browse thousands of different options on Cheapflights for your next trip

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Top 4 airlines flying from LaGuardia to St. Louis

Discover the top 4 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 February 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$136Average$184FlexibilityNo cancel feeOn-time62%
DeltaCheapest$194Average$357FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$197Average$333FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$217Average$335FlexibilityNo cancel feeOn-time71%

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