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$108+ Cheap flights from John F Kennedy Intl, NY (JFK) 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 10/4. Fares are subject to change and may not be available on all flights or dates of travel.
JFK — STL
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
1 adult, Economy
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Cheap flight deals from John F Kennedy Intl to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from John F Kennedy Intl (JFK) 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 August 18, 2025.

Round-trip from

$201
(Frontier)

One-way from

$108
(FlightHub)

Popular in

June

Cheapest in

January

Average price

$401

Good round-trip deal

$247 or less

Good one-way deal

$78 or less
From New York John F Kennedy Intl to Lambert-St Louis
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One-way flight from New York John F Kennedy Intl to Lambert-St Louis
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Highest demand for flights based on searches. 22% potential increase in price ($103 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($24 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 John F Kennedy Intl to Lambert-St Louis.
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Price to beat on a one-way flight from New York John F Kennedy Intl to Lambert-St Louis.
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Find flight deals from John F Kennedy Intl to St. Louis

Cheapest flights from John F Kennedy Intl to St. Louis
Explore the most affordable flight options available from John F Kennedy Intl to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2025.

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.
Fri 9/1912:59 pmJFK - STL
2 stops21h 07mFrontier
Sun 9/214:00 pmSTL - JFK
1 stop8h 08mFrontier
Deal found 8/17$201
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.
Thu 9/256:15 amJFK - STL
1 stop9h 49mFrontier
Mon 9/291:57 pmSTL - JFK
2 stops10h 11mFrontier
Deal found 8/15$202
This Delta deal was found by Cheapflights users on 8/14. 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 9/232:55 pmJFK - STL
Nonstop2h 53mDelta
Sat 9/274:10 pmSTL - JFK
Nonstop2h 48mDelta
Deal found 8/14$203
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/89:00 amJFK - STL
1 stop7h 04mFrontier
Wed 9/107:55 pmSTL - JFK
2 stops34h 34mFrontier
Deal found 8/16$204
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.
Mon 8/256:00 amJFK - STL
1 stop7h 56mFrontier
Fri 9/51:57 pmSTL - JFK
2 stops10h 11mFrontier
Deal found 8/15$205
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.
Fri 10/36:15 amJFK - STL
2 stops15h 22mFrontier
Mon 10/64:00 pmSTL - JFK
1 stop8h 08mFrontier
Deal found 8/15$208
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.
Mon 8/256:00 amJFK - STL
1 stop7h 56mFrontier
Sat 9/67:55 pmSTL - JFK
2 stops15h 04mFrontier
Deal found 8/15$209
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/236:00 amJFK - STL
1 stop8h 33mFrontier
Sun 8/2410:17 amSTL - JFK
1 stop24h 12mFrontier
Deal found 8/15$210
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/79:00 amJFK - STL
1 stop7h 04mFrontier
Sat 9/137:55 pmSTL - JFK
2 stops13h 31mFrontier
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.
Sun 9/286:15 amJFK - STL
1 stop9h 49mFrontier
Sun 10/51:57 pmSTL - JFK
2 stops16h 32mFrontier
Deal found 8/17$212
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.
Fri 9/56:59 amJFK - STL
1 stop7h 03mFrontier
Mon 9/87:55 pmSTL - JFK
2 stops13h 29mFrontier
Deal found 8/15$214

Cheapflights Fare Finder

 
Customize your flight search to find flights from John F Kennedy Intl 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 August 18, 2025.
Use the filters below to find and compare flights from New York John F Kennedy Intl Airport to St. Louis that are best for you.

Fly from

John F Kennedy Intl

Fly to

St. Louis

Route

Depart

Return

Price

New YorkSt. Louis

JFK - STL

JFKSTL

New York John F Kennedy Intl

Fri 10/3

12:59 pm-9:06 am

2 stops21h 07m

Lambert-St Louis

Mon 10/6

4:00 pm-1:08 am

1 stop8h 08m

$201

New YorkSt. Louis

JFK - STL

JFKSTL

New York John F Kennedy Intl

Fri 9/26

12:59 pm-9:06 am

2 stops21h 07m

Lambert-St Louis

Sun 9/28

4:00 pm-1:08 am

1 stop8h 08m

$201

New YorkSt. Louis

JFK - STL

JFKSTL

New York John F Kennedy Intl

Fri 10/3

12:59 pm-9:06 am

2 stops21h 07m

Lambert-St Louis

Sun 10/5

4:00 pm-1:08 am

1 stop8h 08m

$201

New YorkSt. Louis

JFK - STL

JFKSTL

New York John F Kennedy Intl

Fri 9/19

12:59 pm-9:06 am

2 stops21h 07m

Lambert-St Louis

Sun 9/21

4:00 pm-1:08 am

1 stop8h 08m

$201

New YorkSt. Louis

JFK - STL

JFKSTL

New York John F Kennedy Intl

Thu 9/25

6:15 am-3:04 pm

1 stop9h 49m

Lambert-St Louis

Mon 9/29

1:57 pm-1:08 am

2 stops10h 11m

$202

New YorkSt. Louis

JFK - STL

JFKSTL

New York John F Kennedy Intl

Tue 9/23

2:55 pm-4:48 pm

Nonstop2h 53m

Lambert-St Louis

Sat 9/27

4:10 pm-7:58 pm

Nonstop2h 48m

$203

New YorkSt. Louis

JFK - STL

JFKSTL

New York John F Kennedy Intl

Mon 9/8

9:00 am-3:04 pm

1 stop7h 04m

Lambert-St Louis

Wed 9/10

7:55 pm-7:29 am

2 stops34h 34m

$204

New YorkSt. Louis

JFK - STL

JFKSTL

New York John F Kennedy Intl

Fri 9/26

6:59 am-1:02 pm

1 stop7h 03m

Lambert-St Louis

Mon 9/29

4:00 pm-1:08 am

1 stop8h 08m

$205

New YorkSt. Louis

JFK - STL

JFKSTL

New York John F Kennedy Intl

Thu 9/18

6:15 am-3:04 pm

1 stop9h 49m

Lambert-St Louis

Sun 9/21

1:52 pm-10:26 am

1 stop19h 34m

$205

New YorkSt. Louis

JFK - STL

JFKSTL

New York John F Kennedy Intl

Sat 10/4

1:01 pm-3:04 pm

1 stop27h 03m

$108

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/16

Showing 1-10 of 18 results
1
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Best time to book a flight from John F Kennedy Intl to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from John F Kennedy Intl 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 John F Kennedy Intl Airport to St. Louis

What is the cheapest month to book a flight from New York John F Kennedy Intl Airport to St. Louis?

Currently, August is the cheapest month in which you can book a flight from New York John F Kennedy Intl Airport to St. Louis (average of $311). Flying from New York John F Kennedy Intl 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 JFK to STL?

Find hourly flight availability from John F Kennedy Intl 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 August 18, 2025.

When flying from New York John F Kennedy Intl Airport to St. Louis, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 38% versus a flight in the evening.

How much does it cost to fly round-trip from New York John F Kennedy Intl 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 August 18, 2025.
See what other customers who have flown with Delta, American Airlines, and Frontier from New York John F Kennedy Intl Airport to St. Louis have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,981 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
Delta
8.0
Very good
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,981 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
Frontier
5.8
Fair
3,212 reviews
Delta
8.0
Very good
7,981 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

Related info for your journey

Find useful and relevant information for your journey from John F Kennedy Intl 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 John F Kennedy Intl?

    For a flight from New York John F Kennedy Intl to St. Louis, you will be flying into Lambert-St Louis. Lambert-St Louis (STL) is just 12.7 mi from the center of the city. Lambert-St Louis is the only St. Louis airport and it handles 0 inbound flights from New York John F Kennedy Intl per day. 3 airlines have flights to Lambert-St Louis from New York John F Kennedy Intl on a regular basis.

  • What are the cheapest airlines flying from New York John F Kennedy Intl Airport to St. Louis round-trip?

    Flying on Frontier is currently your cheapest option to St. Louis, with prices starting at $65. Additional round-trip tickets that might be worth considering are offered by Delta and American Airlines, with the lowest prices starting at $188 and $238, respectively. Frontier is currently priced 81% below the average price you’ll pay for this route.

  • What are the cheapest flights from New York John F Kennedy Intl Airport to St. Louis?

    The cheapest flight price from New York John F Kennedy Intl Airport to St. Louis is $247. On average you can expect to pay $337. The most popular route, (New York John F Kennedy Intl - Lambert-St Louis), can usually be booked for $189.

  • Can I find deals for flights from John F Kennedy Intl to St. Louis that include hotel bookings?

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

  • How can I find direct flights from John F Kennedy Intl to St. Louis?

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

  • Can I find deals for business class flights from John F Kennedy Intl to St. Louis?

    Yes. Cheapflights offers flight deals from John F Kennedy Intl 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 John F Kennedy Intl Airport to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from New York John F Kennedy Intl Airport to St. Louis (average of $311). Flying from New York John F Kennedy Intl 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 John F Kennedy Intl to St. Louis

Discover the top 3 airlines that operate flights from John F Kennedy Intl 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 August 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$65Average$191FlexibilityNo cancel feeOn-time62%
DeltaCheapest$163Average$327FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$226Average$345FlexibilityNo cancel feeOn-time71%

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