St. Louis to Washington (STL-DCA): nonstop upgrade & award space

American Airlines flies nonstop between St. Louis (STL) and Washington (DCA), roughly 20 times a week. With American Airlines running most of the schedule, the shape of a week is predictable, which makes an open premium seat on a given date easy to spot and quick to lose. 2LNR tracks confirmed upgrade and award space on American Airlines, on every STL to DCA departure, so you know which flights have space before you book.

Schedule last confirmed . Departure times come from 2LNR's schedule data; confirm with the airline before you book.

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20
Nonstop flights a week
717 mi
Nonstop distance
Free
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St. Louis to Washington flight schedule

Scheduled nonstop departures for STL to DCA, last checked against our schedule feed on September 6, 2026. Airlines retime and cancel flights, so confirm with the airline before you book.

Schedule data dated .

Scheduled nonstop departures from St. Louis (STL) to Washington (DCA)
Date Flight Airline Departs STL Arrives DCA Duration Aircraft
AA 4634American Airlines06:0009:192h 19mE75
AA 4436American Airlines10:4513:592h 14mE75
AA 2286American Airlines17:1320:192h 6m319
AA 4634American Airlines06:0009:192h 19mE75
AA 4436American Airlines10:4513:592h 14mE75
AA 2286American Airlines17:1320:192h 6m319
AA 4634American Airlines06:0009:192h 19mE75
AA 4436American Airlines10:4513:592h 14mE75
AA 2286American Airlines17:1320:192h 6m319
AA 4634American Airlines06:5410:132h 19mE75
AA 4634American Airlines06:0009:192h 19mE75
AA 4436American Airlines10:4513:592h 14mE75
AA 2286American Airlines17:1320:192h 6m319
AA 4634American Airlines06:0009:192h 19mE75
AA 4436American Airlines10:4513:592h 14mE75
AA 2286American Airlines17:1320:192h 6m319
AA 4634American Airlines06:0009:192h 19mE75
AA 4436American Airlines10:4513:592h 14mE75
AA 2286American Airlines17:1320:192h 6m319

Showing all 19 scheduled STL to DCA departures across the next 7 days with service. Later dates are on the interactive map.

Departure and arrival times are local at their own airport, so an arrival can fall on a different local date than the departure; the duration column is the true elapsed flying time. A dash means the airline has not filed that value in the schedule data we hold. Aircraft are IATA equipment codes as filed, and can change up to departure.

See every STL to DCA date on the interactive map

Confirmed upgrade & award space on STL to DCA departures

2LNR tracks confirmed upgrade and award space on American Airlines, segment by segment and date by date. Open the calendar for St. Louis to Washington to see which departures have space, the next 14 days free on every product and the full horizon on Pro.

See real availability

Confirmed upgrade and award seats on each STL to DCA departure, checked against live inventory so you know what is open before you book.

Set an alert

Premium inventory turns over fast. Watch this route and 2LNR notifies you when space appears on a date you are tracking.

Plan on the map

See STL to DCA on the interactive route map, with schedules, connections, and route statistics.

Airlines flying St. Louis to Washington nonstop

Carriers operating STL to DCA nonstop in the current schedule. 2LNR tracks confirmed upgrade and award space on each of them.

See STL to DCA on the interactive map →

Frequently asked questions about STL to DCA

How far is Washington from St. Louis?
STL to DCA covers about 717 miles nonstop. Flight times vary by aircraft and season; the schedule table on this page lists each scheduled departure with its own times.
Which airlines fly nonstop from STL to DCA?
American Airlines is currently the only airline flying STL to DCA nonstop. 2LNR tracks confirmed upgrade and award space on American Airlines.
How many flights a week are there from STL to DCA?
About 20 nonstop flights a week run between St. Louis and Washington in the current schedule, operated by American Airlines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next.
What time do flights from STL to DCA depart?
Scheduled STL to DCA nonstops in the next 7 days with service leave between 06:00 and 17:13, local time at St. Louis. The schedule table on this page lists every departure by date, with its arrival time and aircraft.
How do I check upgrade or award availability on STL to DCA?
Open the STL to DCA route on the interactive map or the matrix to see confirmed upgrade and award space by date on American Airlines, the next 14 days free and the full horizon on Pro. On Pro you can also set an alert on the route and 2LNR notifies you when space opens.

Never miss STL to DCA upgrade or award space

See what is open by date on this route, the next 14 days free on every product and the full horizon on Pro.

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