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$179+ 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 10/16. Fares are subject to change and may not be available on all flights or dates of travel.
HPN — STL
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$261
(Delta)

One-way from

$179
(Delta)

Popular in

December

Cheapest in

January

Average price

$317
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. 8% potential increase in price ($29 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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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 June 12, 2025.

This Delta deal was found by Cheapflights users on 6/10. 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 7/236:00 amHPN - STL
1 stop7h 34mDelta
Tue 8/510:46 amSTL - HPN
1 stop4h 49mDelta
Deal found 6/10$261
This American Airlines deal was found by Cheapflights users on 6/11. 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 7/2411:19 amHPN - STL
1 stop6h 15mAmerican Airlines
Wed 8/66:06 amSTL - HPN
1 stop4h 22mAmerican Airlines
Deal found 6/11$287
This Mytrip deal was found by Cheapflights users on 6/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/98:10 amHPN - STL
2 stops26h 42mMultiple Airlines
Sun 7/1310:47 amSTL - HPN
3 stops33h 12mMultiple Airlines
Deal found 6/11$480

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 June 12, 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

Wed 7/23

6:00 am-12:34 pm

1 stop7h 34m

Lambert-St Louis

Tue 8/5

10:30 am-3:43 pm

1 stop4h 13m

$261

White PlainsSt. Louis

HPN - STL

HPNSTL

White Plains Westchester County

Thu 7/24

11:19 am-4:34 pm

1 stop6h 15m

Lambert-St Louis

Wed 8/6

6:06 am-11:28 am

1 stop4h 22m

$287

White PlainsSt. Louis

HPN - STL

HPNSTL

White Plains Westchester County

Wed 7/9

8:10 am-9:52 am

2 stops26h 42m

Lambert-St Louis

Sun 7/13

10:47 am-8:59 pm

3 stops33h 12m

$480

White PlainsSt. Louis

HPN - STL

HPNSTL

White Plains Westchester County

Thu 10/16

6:00 am-12:25 pm

1 stop7h 25m

$179

White PlainsSt. Louis

HPN - STL

HPNSTL

White Plains Westchester County

Sun 6/22

6:00 am-12:51 pm

1 stop7h 51m

$340

White PlainsSt. Louis

HPN - STL

HPNSTL

White Plains Westchester County

Sun 6/22

8:10 am-6:18 pm

3 stops35h 08m

$441

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

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 $311). Flying from Westchester County 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.

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

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 June 12, 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. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,950 reviews

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

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
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

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
7,950 reviews

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

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.

  • 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 $311). Flying from Westchester County 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 Westchester County?

Book flights to Westchester County if you plan to visit one of these locations
O'Fallon
Maryland Heights
Fairview Heights
Collinsville
Eureka
St. Peters
Glencoe
Festus
Alton
Farmington

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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$242Average$368FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$248Average$361FlexibilityNo cancel feeOn-time71%

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