WashingtontoSt. LouisFlight Time
IAD–STL · Nonstop
Washington (Washington Dulles International Airport) to St. Louis (St. Louis Lambert International Airport).
The estimated flight time from Washington (IAD) to St. Louis (STL) is about 2h 1m, covering 694 miles. United Airlines flies the route nonstop with 2/day departures, from 09:00 to 17:55 local time.
Plan this routeAt a glance
| Est. flight time | Distance | Route type | Captured freq. | Market |
|---|---|---|---|---|
| ~2h 1m Estimated from great-circle distance — no tracked flights yet. | 694 mi | Nonstop | 2/day From the current provider sample; confirm live timetables before booking. | Domestic |
Airlines on this route
Nonstop airlines from Washington to St. Louis
United Airlines operates 2/day flights from IAD to STL.
- First departure
- 09:00
- Last departure
- 17:55
- Cadence
- 2 departures/day
- Scheduled departure times
- 2
| Airline | Captured daily freq. | Aircraft | Departures (local) |
|---|---|---|---|
| United Airlines | 2/day | Bombardier CRJ, Canadair Regional Jet | 09:00 |
Aircraft on this route
Flying the other way?
STL to IAD flights — 2/day on 1 airline →Methodology: airline, aircraft, terminal, and departure-time details come from a full week of published airline schedules for IAD, refreshed on a rolling basis. Frequency uses 14 scheduled departures across 7 observed days; flight time is estimated from flying distance until this route has enough tracked flights for an observed average.
Route FAQ
How long is the flight from Washington to St. Louis?
The estimated flight time from Washington (IAD) to St. Louis (STL) is about 2h 1m, based on the 694-mile flying distance.
How far is Washington from St. Louis?
Washington (IAD) to St. Louis (STL) is about 694 miles by air.
Are there nonstop flights from Washington to St. Louis?
Yes. United Airlines flies nonstop from Washington (IAD) to St. Louis (STL), with 2/day departures.
Which airlines fly from Washington to St. Louis?
United Airlines flies nonstop from Washington (IAD) to St. Louis (STL).
What aircraft fly from Washington to St. Louis?
The IAD–STL route is flown with Bombardier CRJ, Canadair Regional Jet.
Route hubs
Nearby airport options
Near Washington
- DCA - WashingtonRonald Reagan Washington Ntl Airport · 24 mi from IADFlights from DCA
- BWI - BaltimoreBaltimore/Washington International Thurgood Marshall Airport · 45 mi from IADFlights from BWI
- RIC - RichmondRichmond International Airport · 100 mi from IADFlights from RIC