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St. Louis

$229+ 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 12/12. Fares are subject to change and may not be available on all flights or dates of travel.
HPN — STL
Dec 29 — Jan 51
Mon 12/29
Mon 1/5
1 adult, Economy
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Find 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 November 29, 2025.

This Delta deal was found by Cheapflights users on 11/27. 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.
Sat 12/135:20 pmHPN - STL
1 stop5h 37mDelta
Tue 12/1610:45 amSTL - HPN
1 stop4h 04mDelta
Deal found 11/27$345
This Delta deal was found by Cheapflights users on 11/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/106:10 amHPN - STL
1 stop5h 35mDelta
Sun 12/146:00 amSTL - HPN
1 stop5h 00mDelta
Deal found 11/28$383
This Delta deal was found by Cheapflights users on 11/27. 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 12/56:10 amHPN - STL
1 stop5h 35mDelta
Sun 12/76:00 amSTL - HPN
1 stop5h 00mDelta
Deal found 11/27$421
This Delta deal was found by Cheapflights users on 11/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/74:29 pmHPN - STL
1 stop8h 13mDelta
Wed 12/106:00 amSTL - HPN
1 stop5h 00mDelta
Deal found 11/28$488
This Delta deal was found by Cheapflights users on 11/29. 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.
Thu 12/45:17 pmHPN - STL
1 stop4h 30mDelta
Fri 12/52:11 pmSTL - HPN
1 stop6h 58mDelta
Deal found 11/29$515
This Delta deal was found by Cheapflights users on 11/26. 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.
Thu 12/46:50 pmHPN - STL
1 stop5h 52mDelta
Sun 12/76:39 amSTL - HPN
1 stop4h 20mDelta
Deal found 11/26$541
This American Airlines deal was found by Cheapflights users on 11/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/276:56 pmHPN - STL
1 stop6h 00mAmerican Airlines
Mon 12/296:02 amSTL - HPN
1 stop7h 28mAmerican Airlines
Deal found 11/27$615
This American Airlines deal was found by Cheapflights users on 11/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2611:04 amHPN - STL
1 stop6h 22mAmerican Airlines
Sun 12/286:02 amSTL - HPN
1 stop7h 28mAmerican Airlines
Deal found 11/27$675
This American Airlines deal was found by Cheapflights users on 11/28. 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.
Wed 12/105:19 pmHPN - STL
2 stops6h 47mAmerican Airlines
Sun 12/148:38 amSTL - HPN
1 stop7h 51mAmerican Airlines
Deal found 11/28$748

Cheap 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 November 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$287
(American Airlines)

One-way from

$248
(Kiwi.com)

Popular in

November

Cheapest in

March

Average price

$453
Provider with most accurate pricing for New York (NYC)-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for New York (NYC)-Lambert-St Louis flights.
Search Deals
From Westchester County to Lambert-St Louis
Search Deals
One-way flight from Westchester County to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($74 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 November 2025
Search Deals

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 November 29, 2025.
Use the filters below to find and compare flights from Westchester County to St. Louis that are best for you.

Fly from

Westchester County

Fly to

St. Louis

Route

Depart

Return

Price

White PlainsSt. Louis

HPN - STL

HPNSTL

White Plains Westchester County

Thu 1/1

5:16 pm-9:45 pm

1 stop5h 29m

Lambert-St Louis

Sun 1/4

6:00 am-11:29 am

1 stop4h 29m

$287

White PlainsSt. Louis

HPN - STL

HPNSTL

White Plains Westchester County

Fri 1/9

6:00 am-11:02 am

1 stop6h 02m

Lambert-St Louis

Sat 1/10

9:59 am-6:00 pm

1 stop7h 01m

$287

White PlainsSt. Louis

HPN - STL

HPNSTL

White Plains Westchester County

Fri 3/13

12:48 pm-5:53 pm

1 stop6h 05m

Lambert-St Louis

Mon 3/16

3:58 pm-10:07 pm

1 stop5h 09m

$313

White PlainsSt. Louis

HPN - STL

HPNSTL

White Plains Westchester County

Fri 1/9

1:30 pm-6:34 pm

1 stop6h 04m

Lambert-St Louis

Sun 1/11

9:54 am-6:08 pm

1 stop7h 14m

$313

White PlainsSt. Louis

HPN - STL

HPNSTL

White Plains Westchester County

Fri 1/9

12:36 pm-4:37 pm

1 stop5h 01m

Lambert-St Louis

Sun 1/11

7:10 am-2:26 pm

1 stop6h 16m

$313

White PlainsSt. Louis

HPN - STL

HPNSTL

White Plains Westchester County

Sat 12/13

6:10 am-10:24 am

1 stop5h 14m

Lambert-St Louis

Tue 12/16

6:39 am-11:59 am

1 stop4h 20m

$345

White PlainsSt. Louis

HPN - STL

HPNSTL

White Plains Westchester County

Thu 12/11

1:36 pm-7:30 pm

1 stop6h 54m

Lambert-St Louis

Sat 12/13

8:54 am-4:49 pm

1 stop6h 55m

$383

White PlainsSt. Louis

HPN - STL

HPNSTL

White Plains Westchester County

Wed 12/10

6:10 am-10:45 am

1 stop5h 35m

Lambert-St Louis

Sun 12/14

6:00 am-12:00 pm

1 stop5h 00m

$383

White PlainsSt. Louis

HPN - STL

HPNSTL

White Plains Westchester County

Sat 12/13

5:20 pm-9:57 pm

1 stop5h 37m

$229

White PlainsSt. Louis

HPN - STL

HPNSTL

White Plains Westchester County

Fri 12/12

12:45 pm-5:56 pm

1 stop6h 11m

$229

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/28

Showing 1-10 of 16 results
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2

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

What is the cheapest month to book a flight from Westchester County to St. Louis?

Currently, August is the cheapest month in which you can book a flight from Westchester County to St. Louis (average of $259). Flying from Westchester County to St. Louis in November is currently the most expensive (average of $449). 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.

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 November 29, 2025.
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.
Delta
7.9
Good
8,011 reviews

Crew

8.5

Comfort

7.9

Overall

7.9

Food

7.3

Entertainment

7.9

Boarding

8.1

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
7.9
Good
8,011 reviews
Delta
7.9
Good
8,011 reviews

Crew

8.5

Comfort

7.9

Overall

7.9

Food

7.3

Entertainment

7.9

Boarding

8.1

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
11,043 reviews
Delta
7.9
Good
8,011 reviews

Crew

8.5

Comfort

7.9

Overall

7.9

Food

7.3

Entertainment

7.9

Boarding

8.1

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 $313, American Airlines can have you in St. Louis from Westchester County in 5h 01m. 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.

  • What is the cheapest month to book a flight from Westchester County to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from Westchester County to St. Louis (average of $259). Flying from Westchester County to St. Louis in November is currently the most expensive (average of $449). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Westchester County to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
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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 November 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$260Average$368FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$280Average$415FlexibilityNo cancel feeOn-time71%

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