Wayfli › Washington (IAD) › To Denver (DEN)
Washington (IAD) to Denver (DEN) flights
There are direct flights from Washington Dulles International Airport to Denver International Airport, sold by 2 airlines (including codeshares): United Airlines and Southwest Airlines. The distance is 2,332 km, about 3h 20m in the air. There are also 33 one-stop options, via airports such as Chicago, Dallas-Fort Worth and Atlanta.
Live fares for IAD → DENSee all routes on the map2,332 kmdistance
~3h 20mdirect flight time (estimate)
2direct airlines
33one-stop options
Direct flights from Washington to Denver
| Route | Airlines (incl. codeshares) | Distance | Time (est.) |
|---|---|---|---|
| IAD → DEN | United Airlines, Southwest Airlines | 2,332 km | ~3h 20m |
Best one-stop connections
Through the biggest hubs first. Times include about 100 minutes to change planes.
| Via | Airlines | Distance | Time (est.) |
|---|---|---|---|
| ORD Chicago | United Airlines then American Airlines and Frontier Airlines | 2,371 km | ~5h 35m |
| DFW Dallas-Fort Worth | American Airlines and United Airlines then American Airlines and Frontier Airlines | 2,915 km | ~6h 15m |
| ATL Atlanta | Air France and Aeromexico then Air Canada and Air France | 2,786 km | ~6h 5m |
| JFK New York | jetBlue and United Airlines then jetBlue | 2,976 km | ~6h 20m |
| EWR Newark | United Airlines then United Airlines and Southwest Airlines | 2,918 km | ~6h 15m |
| YYZ Toronto | Air Canada and United Airlines then Air Canada and United Airlines | 2,668 km | ~5h 55m |
| CLT Charlotte | American Airlines and United Airlines then American Airlines | 2,666 km | ~5h 55m |
| PHL Philadelphia | United Airlines then American Airlines and United Airlines | 2,717 km | ~6h |
| MDW Chicago | Southwest Airlines then Frontier Airlines and Southwest Airlines | 2,364 km | ~5h 35m |
| CLE Cleveland | United Airlines then Frontier Airlines and United Airlines | 2,391 km | ~5h 35m |
| LGA New York | United Airlines then Frontier Airlines and United Airlines | 2,967 km | ~6h 15m |
| STL St. Louis | United Airlines then Frontier Airlines and United Airlines | 2,353 km | ~5h 30m |
More from Washington and Denver
- Denver (DEN) to Washington (IAD) · return route
- All direct flights from Washington (IAD)
- All direct flights from Denver (DEN)
- Washington to Istanbul (IST)
- Washington to Amsterdam (AMS)
- Washington to Paris (CDG)
- Washington to Frankfurt (FRA)
- Washington to Dubai (DXB)
- Washington to Beijing (PEK)
- Washington to Chicago (ORD)
- Washington to Dallas-Fort Worth (DFW)
- Washington to Madrid (MAD)
- Washington to Rome (FCO)
- Washington to Munich (MUC)
- Washington to London (LHR)
- Istanbul (IST) to Denver
- Frankfurt (FRA) to Denver
- Chicago (ORD) to Denver
- Dallas-Fort Worth (DFW) to Denver
- London (LHR) to Denver
- Atlanta (ATL) to Denver
- Houston (IAH) to Denver
- New York (JFK) to Denver
- Newark (EWR) to Denver
- Toronto (YYZ) to Denver
- Los Angeles (LAX) to Denver
- Miami (MIA) to Denver
Routes come from current airline fares, updated weekly (last update 9 November 2026), plus older schedule data for airports with few recent fares. “Direct” can include a few same-plane flights with a stop. Flight times are estimates from distance. Always check with the airline before booking.