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$110+ 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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
LGA — STL
ago. 23 — ago. 301
sáb. 8/23
sáb. 8/30
1 adult, Economy
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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 Tuesday or Wednesday and return on a Tuesday

Cheap 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 agosto 18, 2025.

Round-trip from

$198
(Frontier)

One-way from

$110
(Frontier)

Popular in

December

Cheapest in

March

Average price

$320

Good round-trip deal

$265 or less

Good one-way deal

$178 or less
From New York LaGuardia to Lambert-St Louis
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One-way flight from New York LaGuardia to Lambert-St Louis
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Highest demand for flights based on searches. 7% potential increase in price ($27 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from New York LaGuardia to Lambert-St Louis.
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Price to beat on a one-way flight from New York LaGuardia to Lambert-St Louis.
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Find 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 agosto 18, 2025.

This Frontier deal was found by Cheapflights users on 8/18. 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.
mié. 9/310:00 pmLGA - STL
1 stop12h 54mFrontier
jue. 9/47:55 pmSTL - LGA
2 stops13h 38mFrontier
Deal found 8/18$198
This Frontier deal was found by Cheapflights users on 8/18. 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.
vie. 9/512:56 pmLGA - STL
2 stops21h 10mFrontier
dom. 9/74:00 pmSTL - LGA
1 stop6h 57mFrontier
Deal found 8/18$201
This FlightHub deal was found by Cheapflights users on 8/18. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/46:30 amLGA - STL
1 stop9h 34mFrontier
vie. 9/121:57 pmSTL - LGA
1 stop21h 04mFrontier
Deal found 8/18$202
This Frontier deal was found by Cheapflights users on 8/15. 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.
jue. 9/46:30 amLGA - STL
1 stop9h 34mFrontier
lun. 9/82:38 pmSTL - LGA
2 stops18h 55mFrontier
Deal found 8/15$205
This Kiwi.com deal was found by Cheapflights users on 8/17. 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.
jue. 9/186:30 amLGA - STL
1 stop9h 34mMultiple Airlines
lun. 9/224:00 pmSTL - LGA
2 stops19h 29mMultiple Airlines
Deal found 8/17$206
This Kiwi.com deal was found by Cheapflights users on 8/15. 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.
sáb. 9/61:29 pmLGA - STL
2 stops21h 11mMultiple Airlines
lun. 9/84:00 pmSTL - LGA
1 stop6h 57mMultiple Airlines
Deal found 8/15$208
This Frontier deal was found by Cheapflights users on 8/17. 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.
vie. 9/2612:56 pmLGA - STL
2 stops21h 10mFrontier
dom. 9/2810:39 amSTL - LGA
1 stop9h 20mFrontier
Deal found 8/17$209
This FlightHub deal was found by Cheapflights users on 8/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/68:47 pmLGA - STL
1 stop14h 07mFrontier
vie. 9/121:57 pmSTL - LGA
1 stop21h 04mFrontier
Deal found 8/16$210
This FlightHub deal was found by Cheapflights users on 8/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/105:03 pmLGA - STL
1 stop23h 35mFrontier
dom. 10/1911:32 amSTL - LGA
1 stop21h 58mFrontier
Deal found 8/16$211
This Frontier deal was found by Cheapflights users on 8/17. 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.
dom. 9/286:30 amLGA - STL
1 stop9h 34mFrontier
dom. 10/57:55 pmSTL - LGA
2 stops13h 38mFrontier
Deal found 8/17$212
This Kiwi.com deal was found by Cheapflights users on 8/17. 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.
jue. 10/911:30 amLGA - STL
1 stop24h 07mFrontier
lun. 10/137:52 pmSTL - LGA
2 stops13h 38mFrontier
Deal found 8/17$213
This FlightHub deal was found by Cheapflights users on 8/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/510:56 pmLGA - STL
1 stop11h 10mFrontier
vie. 9/121:57 pmSTL - LGA
1 stop21h 04mFrontier
Deal found 8/17$214

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 agosto 18, 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

lun. 9/15

12:56 pm-9:06 am

2 stops21h 10m

Lambert-St Louis

lun. 9/22

4:00 pm-11:57 pm

1 stop6h 57m

$201

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

vie. 9/5

12:56 pm-9:06 am

2 stops21h 10m

Lambert-St Louis

dom. 9/7

4:00 pm-11:57 pm

1 stop6h 57m

$201

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

lun. 9/22

12:56 pm-9:06 am

2 stops21h 10m

Lambert-St Louis

lun. 9/29

4:00 pm-11:57 pm

1 stop6h 57m

$201

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

jue. 9/4

6:30 am-3:04 pm

1 stop9h 34m

Lambert-St Louis

dom. 9/7

7:55 pm-12:01 pm

2 stops15h 06m

$201

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

jue. 9/4

6:30 am-3:04 pm

1 stop9h 34m

Lambert-St Louis

vie. 9/12

1:57 pm-12:01 pm

1 stop21h 04m

$202

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

dom. 9/7

6:30 am-3:04 pm

1 stop9h 34m

Lambert-St Louis

vie. 9/12

1:57 pm-12:01 pm

1 stop21h 04m

$202

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

jue. 9/25

6:30 am-3:04 pm

1 stop9h 34m

Lambert-St Louis

lun. 9/29

2:38 pm-10:33 am

2 stops18h 55m

$205

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

jue. 9/4

6:30 am-3:04 pm

1 stop9h 34m

Lambert-St Louis

lun. 9/8

2:38 pm-10:33 am

2 stops18h 55m

$205

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

lun. 10/6

11:30 am-8:37 pm

2 stops10h 07m

$110

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

sáb. 10/25

10:59 am-5:55 pm

1 stop7h 56m

$111

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/15

Showing 1-10 of 16 results
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The best insider tips for New York LaGuardia Airport to St. Louis flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
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

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 August 8, 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 50 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, August is the cheapest month in which you can book a flight from New York LaGuardia Airport to St. Louis (average of $311). Flying from New York LaGuardia Airport to St. Louis in March is currently the most expensive (average of $356). 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 agosto 18, 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 9% 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 August 17, 2025.

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

Weekly flight availability from New York LaGuardia Airport to St. Louis

Explore weekly flight availability from LaGuardia to St. Louis. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated agosto 18, 2025.

The most flights from LGA to STL are scheduled on a Monday (16 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (7 on average).

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

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 agosto 18, 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
4,246 reviews

Crew

8.6

Entertainment

7.5

Comfort

8.0

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,246 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Entertainment

7.5

Comfort

8.0

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
8.0
Very good
7,981 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Entertainment

7.5

Comfort

8.0

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Entertainment

7.5

Comfort

8.0

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

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 12 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 21h 10m. Frontier provides one of the quickest options available for as low as $201. The distance between New York LaGuardia Airport and St. Louis is about 885 mi.

  • 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 $190. Additional round-trip tickets that might be worth considering are offered by Southwest and American Airlines, with the lowest prices starting at $197 and $200, respectively. Delta is 43% cheaper than the average price of flights available within the next 90 days to this destination.

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

    Consider SkyWest Airlines (100%), WestJet (82%) or American Airlines (78%) 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 $108. While the most popular route (New York LaGuardia - Lambert-St Louis) can be booked for $163 on average our data indicates $533 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, August is the cheapest month in which you can book a flight from New York LaGuardia Airport to St. Louis (average of $311). Flying from New York LaGuardia Airport to St. Louis in March is currently the most expensive (average of $356). 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
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Eureka
St. Peters
Glencoe
Alton
Chesterfield
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 agosto 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$190Average$348FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$197Average$338FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$200Average$317FlexibilityNo cancel feeOn-time71%

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