Cheap Flights from St Louis to Westchester County

Compare St Louis to Westchester County flight deals

Find the cheapest month or even day of the year to fly to Westchester County

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Flight deals from St Louis Airport to Westchester County Airport

Looking for a cheap last-minute deal or the best return flight from St Louis Airport to Westchester County Airport? If you want to travel next month, return fares start from $506. Find the lowest prices on one-way and return tickets right here.

White Plains.$506 per passenger.Departing Wed, 22 Apr, returning Wed, 29 Apr.Return flight with Delta.Outbound indirect flight with Delta, departs from St Louis on Wed, 22 Apr, arriving in Westchester County.Inbound indirect flight with Delta, departs from Westchester County on Wed, 29 Apr, arriving in St Louis.Price includes taxes and charges.From $506, select.

White Plains.$757 per passenger.Departing Mon, 23 Mar, returning Fri, 27 Mar.Return flight with Delta.Outbound indirect flight with Delta, departs from St Louis on Mon, 23 Mar, arriving in Westchester County.Inbound indirect flight with Delta, departs from Westchester County on Fri, 27 Mar, arriving in St Louis.Price includes taxes and charges.From $757, select.

Find the cheapest month to fly from St Louis to Westchester County

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like St Louis to Westchester County flights are currently cheapest in April.

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St Louis to White Plains: Flight information

The things to know before you go.

Cheapest flight found	$506
Cheapest month to fly	April

Finding cheap flights from St Louis to Westchester County: Frequently asked questions

How much are return flights from St Louis to Westchester County?

The best price we found for a return flight from St Louis to Westchester County is $506. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

Which airlines fly direct from St Louis to Westchester County?

Currently, there are no airlines that fly direct from St Louis to Westchester County. But we found flights with one or more stops from $506.

How many flights are there a week from St Louis to Westchester County?

As of March 2026, there are no flights flying from St Louis to Westchester County.

When is the cheapest time to fly from St Louis to Westchester County?

The cheapest month to fly from St Louis to Westchester County is usually April.

Which upcoming date is cheapest to fly from St Louis Airport to Westchester County Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from St Louis Airport to Westchester County Airport on Wednesday, 22 April 2026.

Can I get a direct flight from St Louis Airport to Westchester County Airport?

No airlines currently offer direct flights between St Louis Airport and Westchester County Airport. Most routes have one or more stops.

How can I find the best flight deal to Westchester County?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Westchester County but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to White Plains?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to White Plains is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from St Louis Airport to Westchester County with?

Currently, Delta offers the cheapest flight tickets to Westchester County.

Flying from Lambert-St. Louis International Airport (STL) to Westchester County Airport (HPN): what you need to know

For a stress-free journey, turn up at the airport two hours ahead of international flights and an hour before domestic departures. This way, you can comfortably board your STL to HPN flight.
During popular months such as July, you'll want to get to the airport earlier. Arrive two hours before domestic departures and four hours ahead of international flights when you travel during peak periods in general.
If you want to explore another city along the way, just uncheck 'Direct flights only' when searching for your ticket from Lambert-St. Louis International Airport to Westchester County Airport. These are the most popular stopovers between STL and HPN:
- Detroit Metropolitan Wayne County Airport
- Ronald Reagan National Airport
- O'Hare International Airport

How to find the cheapest flights from Lambert-St. Louis International Airport (STL) to Westchester County Airport (HPN)

Currently, $285 is the cheapest price we've seen for a one-way Lambert-St. Louis International Airport to Westchester County Airport flight. The best price for a return ticket is $506. Keep in mind that fares may change due to demand when booking.
Don't leave things to the last minute. You're more likely to find cheap tickets from STL to HPN if you book early. Airlines often have some great early bird deals.
If you're willing to be flexible with your travel plans, use the 'Whole month' tool. It'll find the lowest price across each month when searching for a flight from Lambert-St. Louis International Airport to Westchester County Airport.
You don't need to check every day to find out if fares have dropped when you set up a Price Alert. We'll update you the moment there's a change in price on cheap flights from STL to HPN.
Find the perfect flight for you with the help of the filters. To see the 'Cheapest,' 'Best' or 'Fastest' flights from Lambert-St. Louis International Airport to Westchester County Airport, use the 'Sort by' function. You can also filter results by arrival and departure times, airline, and journey duration.

Handy information about Lambert-St. Louis International Airport (STL)

You'll find STL at 10701 Lambert International Blvd..
When it comes to the on-time performance of Lambert-St. Louis International Airport, 78.04% of flights stick to their scheduled arrival time.
Lambert-St. Louis International Airport is about 26 kilometres from central St Louis. If you're ride-sharing, catching a cab or driving from the centre, it'll take you 20 minutes or so to get there, depending on the traffic.
Catching public transport? Expect a trip time of around 35 minutes.
Need a convenient hotel near STL? If you're boarding an early flight from Lambert-St. Louis International Airport to Westchester County Airport, these accommodation options will put you moments from your departure lounge: