St. Louis

$178+ Cheap flights from Westchester County 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 4/21. Fares are subject to change and may not be available on all flights or dates of travel.
HPN — STL
May 1 — May 81
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Cheap flight deals from Westchester County to St. Louis

Cheapest flights from Westchester County to St. Louis
Explore the most affordable flight options available from Westchester County to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 1, 2026.

This Delta deal was found by Cheapflights users on 3/29. 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 4/286:00 am
HPN
-
STL
1 stop6h 56m
Delta
Sat 5/26:00 am
STL
-
HPN
1 stop5h 00m
Delta
Deal found 3/29$301
This American Airlines deal was found by Cheapflights users on 3/29. 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.
Wed 4/2911:00 am
HPN
-
STL
1 stop5h 13m
American Airlines
Sun 5/35:51 am
STL
-
HPN
1 stop4h 38m
American Airlines
Deal found 3/29$316
This American Airlines deal was found by Cheapflights users on 3/28. 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.
Sun 9/65:29 pm
HPN
-
STL
1 stop4h 33m
American Airlines
Thu 10/16:06 am
STL
-
HPN
1 stop4h 03m
American Airlines
Deal found 3/28$331
This Delta deal was found by Cheapflights users on 3/29. 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 4/284:29 pm
HPN
-
STL
1 stop5h 50m
Delta
Sun 5/36:00 am
STL
-
HPN
1 stop5h 00m
Delta
Deal found 3/29$345
This Delta deal was found by Cheapflights users on 3/31. 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.
Sun 9/66:40 pm
HPN
-
STL
1 stop5h 57m
Delta
Thu 10/13:42 pm
STL
-
HPN
1 stop5h 00m
Delta
Deal found 3/31$360
This Delta deal was found by Cheapflights users on 3/31. 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 5/224:29 pm
HPN
-
STL
1 stop6h 00m
Delta
Mon 5/256:45 am
STL
-
HPN
1 stop4h 06m
Delta
Deal found 3/31$374
This Delta deal was found by Cheapflights users on 3/29. 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 5/14:29 pm
HPN
-
STL
1 stop5h 50m
Delta
Sun 5/36:00 am
STL
-
HPN
1 stop5h 00m
Delta
Deal found 3/29$389
This American Airlines deal was found by Cheapflights users on 3/30. 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.
Fri 6/265:29 pm
HPN
-
STL
1 stop5h 01m
American Airlines
Tue 6/306:00 am
STL
-
HPN
1 stop4h 29m
American Airlines
Deal found 3/30$394
This American Airlines deal was found by Cheapflights users on 3/29. 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.
Tue 4/285:16 pm
HPN
-
STL
1 stop5h 51m
American Airlines
Mon 5/45:51 am
STL
-
HPN
1 stop4h 38m
American Airlines
Deal found 3/29$396
This Delta deal was found by Cheapflights users on 3/30. 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.
Sun 4/266:00 am
HPN
-
STL
1 stop6h 56m
Delta
Thu 4/306:00 am
STL
-
HPN
1 stop5h 00m
Delta
Deal found 3/30$400
This Delta deal was found by Cheapflights users on 3/27. 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 4/174:29 pm
HPN
-
STL
1 stop5h 50m
Delta
Mon 4/209:59 am
STL
-
HPN
1 stop7h 17m
Delta
Deal found 3/27$403
This American Airlines deal was found by Cheapflights users on 3/31. 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.
Wed 4/14:30 pm
HPN
-
STL
1 stop5h 41m
American Airlines
Wed 4/89:10 am
STL
-
HPN
1 stop6h 36m
American Airlines
Deal found 3/31$407

Find flight deals from Westchester County to St. Louis

Keep the following information in mind while searching for Westchester County to St. Louis flight deals. Data was last updated April 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$301
(Delta)

One-way from

$178
(Kiwi.com)

Popular in

November

Cheapest in

August

Average price

$317
Provider with most accurate pricing for New York (NYC)-Lambert-St Louis flight deals.
Provider most trusted by Cheapflights users for New York (NYC)-Lambert-St Louis flights.
From Westchester County to Lambert-St Louis
One-way flight from Westchester County to Lambert-St Louis
Highest demand for flights based on searches. 11% potential increase in price ($45 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Average for round-trip flights in April 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from Westchester County 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 April 1, 2026.
Use the filters below to find and compare flights from Westchester County to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

White PlainsSt. Louis

HPN - STL

HPNSTL

White Plains Westchester County

Sun 9/6

5:29 pm-9:02 pm

1 stop4h 33m

Lambert-St Louis

Thu 10/1

6:06 am-11:09 am

1 stop4h 03m

$331

White PlainsSt. Louis

HPN - STL

HPNSTL

White Plains Westchester County

Wed 4/29

6:57 pm-11:36 pm

1 stop5h 39m

Lambert-St Louis

Sun 5/3

6:00 am-12:00 pm

1 stop5h 00m

$345

White PlainsSt. Louis

HPN - STL

HPNSTL

White Plains Westchester County

Thu 4/30

6:57 pm-11:36 pm

1 stop5h 39m

Lambert-St Louis

Sat 5/2

7:25 am-2:29 pm

1 stop6h 04m

$345

White PlainsSt. Louis

HPN - STL

HPNSTL

White Plains Westchester County

Sun 9/6

6:40 pm-11:37 pm

1 stop5h 57m

Lambert-St Louis

Thu 10/1

3:42 pm-9:42 pm

1 stop5h 00m

$360

White PlainsSt. Louis

HPN - STL

HPNSTL

White Plains Westchester County

Fri 5/15

6:40 pm-11:59 pm

1 stop6h 19m

Lambert-St Louis

Mon 5/18

6:45 am-11:50 am

1 stop4h 05m

$389

White PlainsSt. Louis

HPN - STL

HPNSTL

White Plains Westchester County

Fri 7/3

5:10 pm-8:39 pm

1 stop4h 29m

Lambert-St Louis

Wed 7/8

6:00 am-12:08 pm

1 stop5h 08m

$400

White PlainsSt. Louis

HPN - STL

HPNSTL

White Plains Westchester County

Sun 4/26

6:00 am-11:56 am

1 stop6h 56m

Lambert-St Louis

Thu 4/30

6:00 am-12:00 pm

1 stop5h 00m

$400

White PlainsSt. Louis

HPN - STL

HPNSTL

White Plains Westchester County

Fri 4/17

4:29 pm-9:19 pm

1 stop5h 50m

Lambert-St Louis

Mon 4/20

9:59 am-6:16 pm

1 stop7h 17m

$403

White PlainsSt. Louis

HPN - STL

HPNSTL

White Plains Westchester County

Fri 5/1

4:29 pm-9:19 pm

1 stop5h 50m

Lambert-St Louis

Mon 5/4

6:00 am-12:00 pm

1 stop5h 00m

$444

White PlainsSt. Louis

HPN - STL

HPNSTL

White Plains Westchester County

Mon 4/20

6:57 pm-11:36 pm

1 stop5h 39m

Lambert-St Louis

Thu 4/23

10:50 am-3:49 pm

1 stop3h 59m

$456

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

Showing 1-10 of 23 resultsSorted by cheapest first
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2
3

Best time to book a flight from Westchester County to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Westchester County 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 Westchester County to St. Louis
No data available for this route at this time. Please check back soon.

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 April 1, 2026.
Get a feel of what it's like to fly with Delta and American Airlines from Westchester County to St. Louis by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.5

Entertainment

7.8

Boarding

8.1

Overall

7.9

Comfort

7.9

Food

7.2

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.

Crew

8.5

Entertainment

7.8

Boarding

8.1

Overall

7.9

Comfort

7.9

Food

7.2

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.

Crew

8.5

Entertainment

7.8

Boarding

8.1

Overall

7.9

Comfort

7.9

Food

7.2

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 Westchester County 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 Westchester County?

    Lambert-St Louis (STL), located 12.7 mi from the city center, is the airport you fly into when you book flights from Westchester County to St. Louis.

  • How long is the flight from Westchester County to St. Louis?

    For as low as $331, American Airlines can have you in St. Louis from Westchester County in 4h 33m. The distance from Westchester County to St. Louis is about 895 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Westchester County 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.

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
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 2 airlines flying from Westchester County to St. Louis

Discover the top 2 airlines that operate flights from Westchester County 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 April 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$260Average$332FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$280Average$415FlexibilityNo cancel feeOn-time71%

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