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Direct flights from Saint Louis to Dulles

Airlines Schedules

STL - IAD route map All flights from STL to IAD non-stop. There are direct flights from Saint Louis Airport (STL), Missouri, USA to Washington Dulles International (IAD), Virginia, USA with United Airlines. 14 weekly departures are currently scheduled on this route. Departure times range from 08:25 to 13:24 depending on the schedule period. The flight distance is 698 miles (1123 km). Flight time ranges from 2 hours and 5 minutes to 2 hours and 17 minutes.

STL
Saint Louis Airport
USASaint Louis , USA
IAD
Washington Dulles
USADulles , USA
STL
Saint Louis Airport
USASaint Louis , USA
Washington Dulles
USADulles , USA
IAD
Flight time 2h 5min to 2h 17min
Updated Jun 22, 2026
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Airlines with non-stop routes:

United Airlines Star Alliance

Departure times vary between 08:25 and 13:24 • From Terminal 1
S
M
T
W
T
F
S
Sun
Mon
Tue
Wed
Thu
Fri
Sat
14 flights/week
14 flights/week
Weekday-labels: HAS FLIGHTS UPCOMING NO FLIGHTS
View all flight dates
Flight schedule from Saint Louis to Dulles with United Airlines

This is a weekly direct flight schedule for United Airlines. Use the arrows or click on the date to change week. Click on any flight departure time to show more information and check availability.

 
Flight
Mon
Jul 27
Tue
Jul 28
Wed
Jul 29
Thu
Jul 30
Fri
Jul 31
Sat
Aug 1
Sun
Aug 2
UA4506
08:43
08:43
08:43
08:43
08:43
08:43
08:43
UA4454
12:55
12:55
12:55
12:55
12:55
12:55
12:55

The timetable & schedule information was updated at 2026-06-22

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Saint Louis to Dulles scheduled departures

Select a date to see every published non-stop departure between STL and IAD.

Friday
Fri
Jul 24
2 flights(2)
Saturday
Sat
Jul 25
2 flights(2)
Sunday
Sun
Jul 26
2 flights(2)
Monday
Mon
Jul 27
2 flights(2)
Tuesday
Tue
Jul 28
2 flights(2)
Wednesday
Wed
Jul 29
2 flights(2)
Thursday
Thu
Jul 30
2 flights(2)
Time
Airline
Flight
08:43
United Airlines United Airlines
UA4506
12:55
United Airlines United Airlines
UA4454
08:43
United Airlines United Airlines
UA4506
12:55
United Airlines United Airlines
UA4454
08:43
United Airlines United Airlines
UA4506
12:55
United Airlines United Airlines
UA4454
08:43
United Airlines United Airlines
UA4506
12:55
United Airlines United Airlines
UA4454
08:43
United Airlines United Airlines
UA4506
12:55
United Airlines United Airlines
UA4454
08:43
United Airlines United Airlines
UA4506
12:55
United Airlines United Airlines
UA4454
08:43
United Airlines United Airlines
UA4506
12:55
United Airlines United Airlines
UA4454
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STL-IAD flight route
Route map from Saint Louis, STL to Dulles, IAD. The distance is 698 miles or 1123 km.
Saint Louis - Dulles direct flight map
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STL - IAD route facts

  • Distance
    698 miles (1123 km)
  • Flight time
    2 hours and 5 minutes to 2 hours and 17 minutes
  • Airline
    United United
  • Airline alliances
    Star Alliance
  • Cabins
    Economy First
  • Hub airports
    IAD (Secondary hub.)
  • Departure terminals
    Terminal 1
  • Aircraft
    Canadair (Bombardier) Regional Jet 550 and Embraer 175 (Enhanced Winglets)

Route FAQ

United Airlines operates non-stop flights from STL to IAD with 14 weekly departures.

Scheduled flight time from STL to IAD ranges from 2 hours and 5 minutes to 2 hours and 17 minutes. The route covers 698 miles (1123 km).

14 weekly departures are currently scheduled on this route, with published departure times ranging from 08:25 to 13:24 depending on the schedule period.

Departure terminal: Terminal 1.

Economy and First are currently scheduled on non-stop flights for this route.
Direct flights from Saint Louis to VA, USA
From Saint Louis to Norfolk

ORF Norfolk International
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