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St. Louis

$193+ 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 2/23. Fares are subject to change and may not be available on all flights or dates of travel.
HPN — STL
Feb 14 — Feb 211
Sat 2/14
Sat 2/21
1 adult, Economy
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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 January 15, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$331
(Delta)

One-way from

$193
(Delta)

Popular in

November

Cheapest in

March

Average price

$331
Provider with most accurate pricing for New York (NYC)-Lambert-St Louis flight deals.
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Provider most trusted by Cheapflights users for New York (NYC)-Lambert-St Louis flights.
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From Westchester County to Lambert-St Louis
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One-way flight from Westchester County to Lambert-St Louis
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Highest demand for flights based on searches. 14% potential increase in price ($58 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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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 January 15, 2026.

This Delta deal was found by Cheapflights users on 1/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/86:00 am
HPN
-
STL
1 stop6h 09m
Delta
Mon 3/2312:04 pm
STL
-
HPN
1 stop5h 14m
Delta
Deal found 1/15$331
This Delta deal was found by Cheapflights users on 1/14. 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.
Thu 5/76:00 am
HPN
-
STL
1 stop7h 54m
Delta
Sun 5/106:45 am
STL
-
HPN
1 stop3h 59m
Delta
Deal found 1/14$360
This American Airlines deal was found by Cheapflights users on 1/13. 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.
Mon 3/235:30 pm
HPN
-
STL
1 stop4h 51m
American Airlines
Fri 3/2710:33 am
STL
-
HPN
1 stop5h 14m
American Airlines
Deal found 1/13$377
This Delta deal was found by Cheapflights users on 1/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/175:15 pm
HPN
-
STL
1 stop7h 24m
Delta
Mon 1/196:35 am
STL
-
HPN
1 stop4h 21m
Delta
Deal found 1/15$401
This Delta deal was found by Cheapflights users on 1/13. 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 1/1512:59 pm
HPN
-
STL
1 stop5h 51m
Delta
Mon 1/196:35 am
STL
-
HPN
1 stop4h 21m
Delta
Deal found 1/13$441
This Delta deal was found by Cheapflights users on 1/14. 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.
Sun 5/176:00 am
HPN
-
STL
1 stop5h 45m
Delta
Thu 5/216:45 am
STL
-
HPN
1 stop3h 59m
Delta
Deal found 1/14$479
This American Airlines deal was found by Cheapflights users on 1/13. 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 1/176:00 am
HPN
-
STL
1 stop5h 20m
American Airlines
Sat 1/173:54 pm
STL
-
HPN
1 stop5h 01m
American Airlines
Deal found 1/13$535
This American Airlines deal was found by Cheapflights users on 1/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/811:29 am
HPN
-
STL
2 stops7h 31m
American Airlines
Mon 3/239:37 am
STL
-
HPN
1 stop5h 22m
American Airlines
Deal found 1/14$709
This American Airlines deal was found by Cheapflights users on 1/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/301:30 pm
HPN
-
STL
2 stops8h 45m
American Airlines
Tue 2/38:13 am
STL
-
HPN
1 stop7h 32m
American Airlines
Deal found 1/15$725
This American Airlines deal was found by Cheapflights users on 1/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/76:30 am
HPN
-
STL
1 stop15h 53m
American Airlines
Sun 5/107:05 am
STL
-
HPN
2 stops10h 22m
American Airlines
Deal found 1/14$730
This American Airlines deal was found by Cheapflights users on 1/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/173:09 pm
HPN
-
STL
2 stops9h 17m
American Airlines
Mon 1/196:00 am
STL
-
HPN
1 stop7h 39m
American Airlines
Deal found 1/15$773

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 January 15, 2026.
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

Sun 3/8

6:00 am-11:09 am

1 stop6h 09m

Lambert-St Louis

Mon 3/23

12:04 pm-6:18 pm

1 stop5h 14m

$331

White PlainsSt. Louis

HPN - STL

HPNSTL

White Plains Westchester County

Thu 5/7

6:00 am-12:54 pm

1 stop7h 54m

Lambert-St Louis

Sun 5/10

6:45 am-11:44 am

1 stop3h 59m

$360

White PlainsSt. Louis

HPN - STL

HPNSTL

White Plains Westchester County

Mon 3/23

5:30 pm-9:21 pm

1 stop4h 51m

Lambert-St Louis

Fri 3/27

10:33 am-4:47 pm

1 stop5h 14m

$377

White PlainsSt. Louis

HPN - STL

HPNSTL

White Plains Westchester County

Fri 1/30

5:12 pm-8:43 pm

1 stop4h 31m

Lambert-St Louis

Tue 2/3

6:00 am-2:25 pm

1 stop7h 25m

$401

White PlainsSt. Louis

HPN - STL

HPNSTL

White Plains Westchester County

Sun 5/17

6:00 am-10:45 am

1 stop5h 45m

Lambert-St Louis

Thu 5/21

6:45 am-11:44 am

1 stop3h 59m

$479

White PlainsSt. Louis

HPN - STL

HPNSTL

White Plains Westchester County

Sun 3/8

11:29 am-6:00 pm

2 stops7h 31m

Lambert-St Louis

Mon 3/23

9:37 am-3:59 pm

1 stop5h 22m

$709

White PlainsSt. Louis

HPN - STL

HPNSTL

White Plains Westchester County

Fri 1/30

1:30 pm-9:15 pm

2 stops8h 45m

Lambert-St Louis

Tue 2/3

8:13 am-4:45 pm

1 stop7h 32m

$725

White PlainsSt. Louis

HPN - STL

HPNSTL

White Plains Westchester County

Thu 5/7

6:30 am-9:23 pm

1 stop15h 53m

Lambert-St Louis

Sun 5/10

7:05 am-6:27 pm

2 stops10h 22m

$730

White PlainsSt. Louis

HPN - STL

HPNSTL

White Plains Westchester County

Mon 2/23

6:40 pm-11:36 pm

1 stop5h 56m

$193

White PlainsSt. Louis

HPN - STL

HPNSTL

White Plains Westchester County

Tue 6/16

10:29 am-3:58 pm

1 stop6h 29m

$195

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/15

Showing 1-10 of 16 results
1
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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 $420). 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 January 15, 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.
Delta
7.9
Good
8,051 reviews

Crew

8.5

Entertainment

7.8

Overall

7.9

Food

7.2

Comfort

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
8,051 reviews
Delta
7.9
Good
8,051 reviews

Crew

8.5

Entertainment

7.8

Overall

7.9

Food

7.2

Comfort

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
11,136 reviews
Delta
7.9
Good
8,051 reviews

Crew

8.5

Entertainment

7.8

Overall

7.9

Food

7.2

Comfort

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 $377, Delta can have you in St. Louis from Westchester County in 4h 51m. 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 $420). 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
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
Chesterfield
Alton
Farmington
Festus

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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 January 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$260Average$378FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$280Average$399FlexibilityNo cancel feeOn-time71%

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