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St Louis to Washington Flights

Flights from St Louis (XLS) to Washington (WAS) connect SN and United States. The great-circle distance is approximately 6,652 km, and a typical direct flight takes about 9 to 10 hours. Airports commonly used for this city pair include XLS and WAS, IAD, DCA, BWI. The reverse route is Washington to St Louis. Use the search tool below to compare live prices and schedules — do not treat any static text on this page as a live fare.

Route facts

Origin
St Louis, SN
Destination
Washington, United States
Distance
6,652 km
Typical duration
about 9 to 10 hours
Origin codes
XLS
Destination codes
WAS, IAD, DCA, BWI
Primary keyword
flights from St Louis to Washington

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Route overview

St Louis to Washington is a city-pair air route between SN and United States. Travelers use this corridor for leisure, business, and connecting itineraries.

Primary search codes are XLS and WAS. Related codes: XLS → WAS, IAD, DCA, BWI.

Distance

Approximate flight distance: 6,652 km (great-circle). Actual flown distance can be longer depending on airway routing.

Duration

Typical block time for a direct flight is about 9 to 10 hours. Connecting itineraries take longer and depend on layover airports.

Airports

St Louis airports and metro codes: XLS.

Washington airports and metro codes: WAS, IAD, DCA, BWI.

Alternative routes

Related searches include the reverse route Washington to St Louis, other destinations from St Louis, and other origins into Washington.

Frequently asked questions

How long is the flight from St Louis to Washington?

Direct flights from St Louis to Washington typically take about 9 to 10 hours, depending on aircraft type, routing, and wind conditions. Connecting itineraries take longer.

What is the distance from St Louis to Washington?

The great-circle distance between St Louis and Washington is approximately 6,652 km. Flown distance can be longer depending on airways.

Which airports serve flights from St Louis to Washington?

St Louis is commonly searched with code XLS (related: XLS). Washington is commonly searched with code WAS (related: WAS, IAD, DCA, BWI).

Are there direct flights from St Louis to Washington?

Direct service availability varies by season and airline. Compare live schedules on Cheap Flights Worldwide for current nonstop and connecting options on this route.

What is the reverse flight route from Washington to St Louis?

The reverse city pair is Washington to St Louis. Distance is the same great-circle measure (6,652 km); block time can differ with winds and schedules.

Which countries does the St Louis to Washington route connect?

This route connects SN (St Louis) with United States (Washington).

Related routes