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$142+ 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 1/19. Fares are subject to change and may not be available on all flights or dates of travel.
LGA — STL
Jan 7 — Jan 141
Wed 1/7
Wed 1/14
1 adult, Economy
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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

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Cheapflights Tip: The best prices from New York LaGuardia to Lambert-St Louis are usually found in March or January, booked 85 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 December 8, 2025.

This Delta deal was found by Cheapflights users on 12/7. 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 12/1712:10 pmLGA - STL
1 stop6h 00mDelta
Wed 1/75:32 pmSTL - LGA
Nonstop2h 28mDelta
Deal found 12/7$293
This Frontier deal was found by Cheapflights users on 12/5. 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.
Wed 12/104:30 pmLGA - STL
1 stop7h 03mFrontier
Sun 12/1410:42 amSTL - LGA
1 stop11h 23mFrontier
Deal found 12/5$298
This Kiwi.com deal was found by Cheapflights users on 12/8. 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.
Wed 12/176:20 amLGA - STL
1 stop28h 20mFrontier
Wed 12/247:43 pmSTL - LGA
2 stops26h 31mFrontier
Deal found 12/8$307
This Delta deal was found by Cheapflights users on 12/7. 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.
Tue 12/166:30 amLGA - STL
Nonstop2h 50mDelta
Thu 1/89:45 amSTL - LGA
Nonstop2h 26mDelta
Deal found 12/7$309
This Frontier deal was found by Cheapflights users on 12/8. 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.
Wed 12/3112:00 pmLGA - STL
1 stop11h 33mFrontier
Thu 1/110:42 amSTL - LGA
1 stop11h 32mFrontier
Deal found 12/8$312
This Frontier deal was found by Cheapflights users on 12/5. 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.
Fri 12/510:55 pmLGA - STL
1 stop12h 19mFrontier
Mon 12/810:47 amSTL - LGA
1 stop11h 18mFrontier
Deal found 12/5$313
This Delta deal was found by Cheapflights users on 12/7. 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 12/176:00 amLGA - STL
1 stop4h 50mDelta
Thu 1/81:18 pmSTL - LGA
Nonstop2h 25mDelta
Deal found 12/7$319
This Kiwi.com deal was found by Cheapflights users on 12/5. 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 12/306:30 pmLGA - STL
1 stop29h 03mMultiple Airlines
Fri 1/93:43 pmSTL - LGA
1 stop6h 31mMultiple Airlines
Deal found 12/5$320
This Mytrip deal was found by Cheapflights users on 12/6. 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.
Sun 12/147:32 amLGA - STL
1 stop7h 20mMultiple Airlines
Mon 12/1510:47 amSTL - LGA
1 stop11h 18mMultiple Airlines
Deal found 12/6$321
This United Airlines deal was found by Cheapflights users on 12/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1711:15 amLGA - STL
1 stop5h 25mUnited Airlines
Wed 12/246:30 amSTL - LGA
1 stop5h 48mUnited Airlines
Deal found 12/8$323
This Delta deal was found by Cheapflights users on 12/8. 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.
Tue 12/96:30 amLGA - STL
Nonstop2h 50mDelta
Wed 12/106:05 amSTL - LGA
Nonstop2h 28mDelta
Deal found 12/8$325

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 December 8, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$287
(American Airlines)

One-way from

$142
(Delta)

Popular in

December

Cheapest in

March

Average price

$480

Good round-trip deal

$327 or less

Good one-way deal

$175 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. 12% potential increase in price ($50 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 8, 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

LaGuardia

Fly to

St. Louis

Route

Depart

Return

Price

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Fri 1/16

10:30 am-12:33 pm

Nonstop3h 03m

Lambert-St Louis

Mon 1/19

9:45 am-1:11 pm

Nonstop2h 26m

$293

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Fri 1/23

6:30 am-8:34 am

Nonstop3h 04m

Lambert-St Louis

Sun 1/25

9:45 am-1:11 pm

Nonstop2h 26m

$293

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Sat 3/14

7:05 pm-10:55 pm

1 stop4h 50m

Lambert-St Louis

Mon 3/16

6:30 pm-9:50 pm

Nonstop2h 20m

$297

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Sat 1/3

9:21 am-11:18 am

Nonstop2h 57m

Lambert-St Louis

Sat 1/10

7:25 am-10:49 am

Nonstop2h 24m

$299

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Mon 1/26

2:40 pm-4:39 pm

Nonstop2h 59m

Lambert-St Louis

Thu 1/29

6:00 am-11:45 am

1 stop4h 45m

$303

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Mon 3/9

10:25 am-12:19 pm

Nonstop2h 54m

Lambert-St Louis

Mon 3/16

1:35 pm-7:42 pm

1 stop5h 07m

$303

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Thu 2/12

6:10 pm-8:09 pm

Nonstop2h 59m

Lambert-St Louis

Sat 2/21

5:50 pm-11:45 pm

1 stop4h 55m

$303

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Fri 2/13

10:20 am-12:23 pm

Nonstop3h 03m

Lambert-St Louis

Thu 2/19

7:10 am-1:42 pm

1 stop5h 32m

$303

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Thu 1/8

2:40 pm-4:39 pm

Nonstop2h 59m

Lambert-St Louis

Sun 1/11

6:35 am-11:59 am

1 stop4h 24m

$303

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Thu 5/14

2:55 pm-8:31 pm

1 stop6h 36m

Lambert-St Louis

Mon 5/18

9:00 am-12:28 pm

Nonstop2h 28m

$303

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/6

Showing 1-10 of 20 results
1
2

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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on New York LaGuardia Airport-St. Louis flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 December 5, 2025.

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 85 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, March 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 December is currently the most expensive (average of $269). 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 December 8, 2025.

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 December 6, 2025.

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 afternoons 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
Airports
LGA

LGA offers free Wi-Fi with a strong signal throughout, ideal for accessing digital boarding passes and staying connected from check-in to boarding.

Read more about LGAby Brandon Schultz
STL

Use the MetroLink light rail for a convenient and economical way to reach downtown St. Louis from STL, taking about 40 minutes.

Read more about STLby Taryn White
Our travel experts
Brandon Schultz

Brandon Schultz

Expert on LGA

Brandon Schultz

Brandon Schultz

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

Taryn White

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 December 8, 2025.
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
4,252 reviews

Crew

8.6

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Overall

8.0

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
4,252 reviews
Southwest
8.0
Very good
4,252 reviews

Crew

8.6

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Overall

8.0

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
8,013 reviews
Southwest
8.0
Very good
4,252 reviews

Crew

8.6

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Overall

8.0

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
11,042 reviews
Southwest
8.0
Very good
4,252 reviews

Crew

8.6

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Overall

8.0

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 13 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 3h 03m. Delta provides one of the quickest options available for as low as $293. 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 Delta is currently your cheapest option to St. Louis, with prices starting at $183. Additional round-trip tickets that might be worth considering are offered by Southwest and American Airlines, with the lowest prices starting at $197 and $208, respectively. Delta is 45% 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 Spirit Airlines, which is currently one of the cheapest options available, starting at $42. Frontier flights start at $54 while deals on American Airlines start at $88 one-way.

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

    Consider WestJet (78%), American Airlines (73%) or Endeavor Airlines (72%) 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 $148. While the most popular route (New York LaGuardia - Lambert-St Louis) can be booked for $156 on average, our data indicates $360 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, March 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 December is currently the most expensive (average of $269). 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
Fairview Heights
Maryland Heights
Collinsville
Swansea
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

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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 December 8, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$195Average$346FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$197Average$326FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$207Average$318FlexibilityNo cancel feeOn-time71%

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