$169 Cheap Flights from White Plains (HPN) to St. Louis (STL)

Popular airlines from Westchester County Airport (HPN) to St. Louis Lambert Intl. Airport (STL)

Cheap Flights from White Plains to St. Louis (HPN-STL)

Prices were available within the past 7 days and start at $169 for one-way flights and $261 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Delta
American Airlines
Delta
Delta
Delta
Delta
Delta
Delta
Delta

Find the cheapest month to fly from White Plains (HPN) to St. Louis (STL)

September is typically the cheapest month to fly

From $216 - $460 per traveler.

Alternative airports near St. Louis

Prices were available within the past 7 days. Prices and availability are subject to change.

Frequently asked questions

How much does a flight from Westchester County Airport (HPN) to Lambert-St. Louis Intl. Airport (STL) cost?
Get a cheap one-way flight from $169 or cheap return flight from $261 from Westchester County Airport (HPN) to Lambert-St. Louis Intl. Airport (STL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Westchester County Airport (HPN) to Lambert-St. Louis Intl. Airport (STL)?
The cheapest month to fly from HPN to STL is December, when demand is low. Off-peak season is usually when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Westchester County Airport (HPN) to Lambert-St. Louis Intl. Airport (STL)?
Use the filters on Expedia to compare different airlines and find the most affordable carrier that'll take you from HPN to STL. Then, sort your results by "Price (lowest to highest)" to score the best deal available.
How many flights per day from Westchester County Airport (HPN) to Lambert-St. Louis Intl. Airport (STL)?
You'll have to take a flight with a layover if you're traveling from Westchester County Airport (HPN) to Lambert-St. Louis Intl. Airport (STL). Direct flights don't operate daily on this route. However, simply filter your search to include one or two stops to discover the best option for your trip.
What day of the week has the most flights from HPN to STL?
Friday is generally the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can change depending on a range of factors, including the season and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Westchester County Airport (HPN) to Lambert-St. Louis Intl. Airport (STL)?
To avoid potential delays on the Westchester County Airport (HPN) to Lambert-St. Louis Intl. Airport (STL) route, aim to travel before 3 PM. Departures after this hour have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Westchester County Airport (HPN) to Lambert-St. Louis Intl. Airport (STL) last-minute?
Holding off until just before your departure to book a flight from HPN to STL often results in higher prices. While you may come across some last-minute discounts, they aren't always guaranteed. Be flexible with your itinerary to boost your chances of getting a bargain.
Is it cheaper to book a HPN to STL flight and hotel package?
Opting for a HPN to STL flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Choose from our wide range of accommodations and then add flights, car rentals and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Westchester County Airport (HPN) to Lambert-St. Louis Intl. Airport (STL)?
Typically, it's possible to reschedule or cancel your HPN to STL flight. However, if it's been more than 24 hours since booking, additional fees may apply. Check your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Origin airport
Westchester County
Destination airport
Lambert-St. Louis Intl.
Airlines serving
American Airlines, Delta
Roundtrip price
$260
Distance
896 mi

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