What are the cheapest airlines flying from White Plains to St. Louis round-trip?

According to our current data, American Airlines ($217), and Delta ($275) offers the cheapest pricing from White Plains to St. Louis. American Airlines is priced at 40% lower than the current average price of a flight leaving 3 months from now.

What are the cheapest airlines to fly from White Plains to St. Louis one-way?

One-way options have recently been found by users for as low as $109 on American Airlines. Other airlines that offer cheap prices include Delta from $119 and Alaska Airlines from $607 one-way.

What is the cheapest day to fly from White Plains to St. Louis?

Travelers seeking maximum savings on their White Plains to St. Louis flight should consider departing on Friday mornings when fares are most often at their lowest. Tuesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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.

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).

What is the cheapest day to fly round-trip from White Plains to St. Louis?

Flying to your destination on a Wednesday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to St. Louis. Check prices with Cheapflights to find a great deal for your trip.

How far in advance should I book a flight from White Plains to St. Louis?

To save up to 68% on this flight, we recommend booking at least 57 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from White Plains to St. Louis from $356 1-2 weeks out and tickets from $398 for flights departing within the next 72 hours.

What is the cheapest month to fly from White Plains to St. Louis?

Flights from White Plains to St. Louis lean towards being more expensive in December. Prices are generally better when you fly from White Plains to St. Louis in January, with the cheapest ticket starting at $207.

What is the cheapest time of day to fly from HPN to STL?

When flying from White Plains to St. Louis, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 18% versus a flight at noon.

Can I find deals for flights from White Plains to St. Louis that include hotel bookings?

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

How can I find direct flights from White Plains to St. Louis?

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

Can I find deals for business class flights from White Plains to St. Louis?

Yes. Cheapflights offers flight deals from White Plains 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.

$109+ Flights from White Plains to St. Louis

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Cheap flight deals from White Plains to St. Louis

Round-trip from	$217 (American Airlines)
One-way from	$109 (American Airlines)
Popular in	December
Cheapest in	November
Average price	$368

From White Plains Westchester County to Lambert-St Louis

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One-way flight from White Plains Westchester County to Lambert-St Louis

Search Deals

Highest demand for flights based on searches. 4% potential increase in price ($19 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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Find flight deals from White Plains to St. Louis

Cheapest flights from White Plains to St. Louis
Explore the most affordable flight options available from White Plains to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Thu 9/1811:15 amHPN - STL

1 stop6h 00mAmerican Airlines

Mon 9/226:29 amSTL - HPN

1 stop5h 42mAmerican Airlines

Deal found 7/27

$217

Fri 9/266:40 pmHPN - STL

1 stop5h 44mDelta

Mon 9/296:40 amSTL - HPN

1 stop4h 21mDelta

Deal found 7/27

$275

Sat 8/98:10 amHPN - STL

2 stops26h 42mMultiple Airlines

Mon 8/1110:47 amSTL - HPN

2 stops9h 12mMultiple Airlines

Deal found 7/28

$656

Best flights from White Plains to St. Louis
Discover carefully curated flight deals from White Plains to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 29, 2025.

Thu 9/1811:15 amHPN - STL

1 stop6h 00mAmerican Airlines

Mon 9/226:29 amSTL - HPN

1 stop5h 42mAmerican Airlines

Deal found 7/27

$217

Fri 9/266:40 pmHPN - STL

1 stop5h 44mDelta

Mon 9/296:40 amSTL - HPN

1 stop4h 21mDelta

Deal found 7/27

$275

Sat 8/98:10 amHPN - STL

2 stops26h 42mMultiple Airlines

Mon 8/1110:47 amSTL - HPN

2 stops9h 12mMultiple Airlines

Deal found 7/28

$656

Last-minute flights from White Plains to St. Louis
Discover last-minute flight deals from White Plains to St. Louis. Data last updated July 29, 2025 and is based on user searches.

Wed 8/65:15 pmHPN - STL

1 stop4h 21mDelta

Thu 8/710:46 amSTL - HPN

1 stop4h 49mDelta

Deal found 7/29

$458

Wed 8/68:10 amHPN - STL

2 stops26h 42mMultiple Airlines

Thu 8/75:26 pmSTL - HPN

2 stops26h 33mMultiple Airlines

Deal found 7/29

$682

Fri 8/85:29 pmHPN - STL

1 stop4h 33mAmerican Airlines

Sun 8/105:52 pmSTL - HPN

1 stop4h 33mAmerican Airlines

Deal found 7/26

$391

Sat 8/98:10 amHPN - STL

2 stops26h 42mMultiple Airlines

Mon 8/1110:47 amSTL - HPN

2 stops9h 12mMultiple Airlines

Deal found 7/28

$656

Tue 8/126:00 amHPN - STL

1 stop7h 31mDelta

Sat 8/166:40 amSTL - HPN

1 stop4h 17mDelta

Deal found 7/28

$315

Mon 8/1810:00 amHPN - STL

1 stop7h 14mAmerican Airlines

Wed 8/205:52 pmSTL - HPN

1 stop4h 33mAmerican Airlines

Deal found 7/28

$327

One-way flights from White Plains to St. Louis
Search for one-way flight options from White Plains to St. Louis. Find affordable one-way fares based on user searches. Data last updated July 29, 2025.

Thu 9/116:30 amHPN - STL

1 stop7h 21mAmerican Airlines

Deal found 7/28

$109

Fri 9/266:40 pmHPN - STL

1 stop5h 44mDelta

Deal found 7/29

$119

Fri 8/154:30 pmHPN - STL

2 stops22h 56mAlaska Airlines

Deal found 7/28

$607

Cheapflights Fare Finder

Use the filters below to find and compare flights from White Plains to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

White PlainsSt. Louis

HPN - STL

HPNSTL

White Plains Westchester County

Thu 9/18

11:15 am-4:15 pm

1 stop6h 00m

Lambert-St Louis

Mon 9/22

6:29 am-1:11 pm

1 stop5h 42m

$217

White PlainsSt. Louis

HPN - STL

HPNSTL

White Plains Westchester County

Fri 9/26

6:40 pm-11:24 pm

1 stop5h 44m

Lambert-St Louis

Mon 9/29

6:40 am-12:01 pm

1 stop4h 21m

$275

White PlainsSt. Louis

HPN - STL

HPNSTL

White Plains Westchester County

Sat 8/9

8:10 am-9:52 am

2 stops26h 42m

Lambert-St Louis

Mon 8/11

10:47 am-8:59 pm

2 stops9h 12m

$656

White PlainsSt. Louis

HPN - STL

HPNSTL

White Plains Westchester County

Thu 9/11

6:30 am-12:51 pm

1 stop7h 21m

$109

White PlainsSt. Louis

HPN - STL

HPNSTL

White Plains Westchester County

Fri 9/26

6:40 pm-11:24 pm

1 stop5h 44m

$119

White PlainsSt. Louis

HPN - STL

HPNSTL

White Plains Westchester County

Fri 8/15

4:30 pm-2:26 pm

2 stops22h 56m

$607

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Best time to book a flight from White Plains to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from White Plains 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 White Plains to St. Louis

What is the cheapest month to book a flight from White Plains to St. Louis?

Currently, August is the cheapest month in which you can book a flight from White Plains to St. Louis (average of $311). Flying from White Plains 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.

Reviews of airlines servicing St. Louis

Read through reviews of airlines operating flights from White Plains to St. Louis, such as Alaska Airlines, Delta, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Alaska Airlines

8.0

Very good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Delta

8.0

Very good

7,977 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

American Airlines

7.2

Good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

What are the cheapest airlines flying from White Plains to St. Louis round-trip?
According to our current data, American Airlines ($217), and Delta ($275) offers the cheapest pricing from White Plains to St. Louis. American Airlines is priced at 40% lower than the current average price of a flight leaving 3 months from now.
What are the cheapest airlines to fly from White Plains to St. Louis one-way?
One-way options have recently been found by users for as low as $109 on American Airlines. Other airlines that offer cheap prices include Delta from $119 and Alaska Airlines from $607 one-way.
Can I find deals for flights from White Plains to St. Louis that include hotel bookings?
Yes. In addition to deals on White Plains to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from White Plains to St. Louis?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from White Plains to St. Louis.
Can I find deals for business class flights from White Plains to St. Louis?
Yes. Cheapflights offers flight deals from White Plains 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 White Plains to St. Louis?
Currently, August is the cheapest month in which you can book a flight from White Plains to St. Louis (average of $311). Flying from White Plains 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

O'Fallon

Maryland Heights

Fairview Heights

Collinsville

Eureka

St. Peters

Glencoe

Alton

Chesterfield

Festus

Farmington

Browse thousands of different options on Cheapflights for your next trip

Top 2 airlines flying from White Plains to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$242	Average$368	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$268	Average$388	FlexibilityNo cancel fee	On-time71%

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$109+ Cheap flights from White Plains to St. Louis (HPN - 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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from White Plains to St. Louis with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from White Plains to St. Louis

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from White Plains to St. Louis

Cheapest flights from White Plains to St. LouisExplore the most affordable flight options available from White Plains to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Explore the most affordable flight options available from White Plains to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from White Plains to St. Louis that are best for you.

Best time to book a flight from White Plains to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from White Plains with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from White Plains to St. Louis

What is the cheapest month to book a flight from White Plains to St. Louis?

Reviews of airlines servicing St. Louis

Read through reviews of airlines operating flights from White Plains to St. Louis, such as Alaska Airlines, Delta, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from White Plains 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 are the cheapest airlines flying from White Plains to St. Louis round-trip?

What are the cheapest airlines to fly from White Plains to St. Louis one-way?

Can I find deals for flights from White Plains to St. Louis that include hotel bookings?

How can I find direct flights from White Plains to St. Louis?

Can I find deals for business class flights from White Plains to St. Louis?

What is the cheapest month to book a flight from White Plains to St. Louis?

Traveling to a place near St. Louis?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for White Plains to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from White Plains to St. Louis

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Book with Flexibility

Travel Smart

Cheapest flights from White Plains to St. Louis
Explore the most affordable flight options available from White Plains to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.