Flights from St Louis to Washington

Flight deals from St Louis to Washington

Looking for a cheap last-minute deal or the best return flight from St Louis to Washington? If you want to travel next month, return fares start from Rs86,502. Find the lowest prices on one-way and return tickets right here.

Seattle.Rs38,720 per passenger.Departing Fri, 11 Sep.One-way flight with United.Outbound indirect flight with United, departs from St Louis on Fri, 11 Sep, arriving in Seattle / Tacoma International.Price includes taxes and charges.From Rs38,720, select.

Spokane.Rs50,395 per passenger.Departing Tue, 9 Jun.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from St Louis on Tue, 9 Jun, arriving in Spokane International.Price includes taxes and charges.From Rs50,395, select.

Pasco.Rs59,142 per passenger.Departing Sat, 20 Jun.One-way flight with United.Outbound indirect flight with United, departs from St Louis on Sat, 20 Jun, arriving in Pasco.Price includes taxes and charges.From Rs59,142, select.

Bellingham.Rs70,335 per passenger.Departing Thu, 18 Jun.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from St Louis on Thu, 18 Jun, arriving in Bellingham.Price includes taxes and charges.From Rs70,335, select.

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Flying from St Louis to Washington

Arm yourself with these facts on the fly.

Cheapest flight found	Rs38,720
Cheapest month to fly	September
Average flight time	4 hrs, 28 mins
Cheapest airport to fly from	St Louis
Most popular airline	Alaska Airlines

How to find cheap flights from St Louis to Washington

We've compared the best online travel agents and flight providers on the internet to find the cheapest plane tickets from St Louis to Washington. Other savvy travellers recently found return flights from Rs77,440 and one-way tickets from Rs38,720 one-way. Ready to join them? Here are a few tips to help you do it the smart way.

Fly from St Louis into Seattle / Tacoma International

At the moment, the lowest priced flight tickets to Washington are from St Louis Airport to Seattle / Tacoma International Airport.

Fly in September

We crunched the flight calendar and found the cheapest time to fly from St Louis to Washington is currently September.

Flex your dates for the best rates

If you’re flexible on your departure dates, you can use Skyscanner's whole month tool to find the cheapest day of the year to fly from St Louis to anywhere you choose in Washington.

Watch as fares rise and fall

With Price Alerts, we'll let you know when flight prices from St Louis to Washington go up or down so you can book when the time is just right.

Relax – these are fee-free flight tickets

With us, there are no added fees – the Washington to Washington flight price you see when you search with us is what you pay to the provider.

Frequently asked questions

What's the average St Louis to Washington flight price?

We looked at all of the upcoming return flights from St Louis to Washington we could find over the next 12 months. It looks like Rs77,440 is the best price. This is good, compared to the average Washington ticket price of Rs127,595.

What is the cheapest month to fly from St Louis to Washington?

The cheapest month to fly from St Louis to Seattle / Tacoma International Airport is usually September. The cheapest month to fly from St Louis to Spokane International Airport is usually June. The cheapest month to fly from St Louis to Pullman Airport is usually June. And the cheapest month to fly from St Louis to Wenatchee Airport is usually June.

Which upcoming date is cheapest to fly from St Louis to Washington on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from St Louis to Washington on Sunday, 6 September 2026.

Are there any direct flights from St Louis to Washington?

St Louis Airport offers direct flights to Washington.

If I'm flying from St Louis, where in Washington is cheapest to fly into?

If you're flying from St Louis, the cheapest city in Washington to fly into is Seattle. The cheapest airport serving Seattle at the moment is Seattle / Tacoma International.