A sample of one-way prices for one traveler from Roame’s fare cache. Points, fees, and seats describe the same observation. Availability can change; confirm with the loyalty program before transferring points.
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Did you mean Flights from Dulles to St Louis?
St Louis
United StatesSTL
Lambert St Louis International Airport
Dulles
United StatesIAD
Washington Dulles International Airport
Lambert St Louis International Airport (STL) serves St Louis; Washington Dulles International Airport (IAD) serves Dulles.
The airports are 694 miles apart by great-circle distance.
Roame's current schedule feed shows nonstop service from STL to IAD.
Marketing airlines listed in the current schedule, including codeshare sellers, are Avianca (AV), Copa Airlines (CM), Lufthansa (LH), Brussels Airlines (SN) and United Airlines (UA). This list does not identify the operating airline for each flight; check the flight details before booking.
Published schedule dates span Sep 24, 2026 – Sep 7, 2027.
These are marketing airlines, including codeshare sellers. This list does not identify the operating airline for each flight; check the flight details before booking.
Airline alliance affiliations represented: Star Alliance
Lambert St Louis International Airport (STL) is the origin airport and Washington Dulles International Airport (IAD) is the destination airport.
STL and IAD are approximately 694 miles apart by great-circle distance.
Yes. Roame's current schedule feed shows nonstop service from STL to IAD.
Marketing airlines listed in the current schedule, including codeshare sellers, are Avianca (AV), Copa Airlines (CM), Lufthansa (LH), Brussels Airlines (SN) and United Airlines (UA). This list does not identify the operating airline for each flight; check the flight details before booking.
Aircraft listed in the current schedule include CR5, Embraer 175 (long wing) (E7W) and JET.