Back to CalculatorRoute ID: ORD-IAD
Flight Distance from Chicago (ORD) to Dulles (IAD)
Comprehensive aviation route data, direct distance, flight duration, CO₂ footprint, passport visa rules and interactive map.
Origin Airport
ORDKORD
Chicago, United States
Chicago O'Hare International Airport
Great Circle Path
945 km587 miles • 510 NM
Destination Airport
KIADIAD
Dulles, United States
Washington Dulles International Airport
Direct Distance
945 km
587 Statute Miles
510 Nautical Miles
Commercial Flight
1h 37m
Est. non-stop flight duration (~850 km/h cruising speed + buffer)
CO₂ Footprint
85 kg
Estimated carbon footprint per economy passenger (~90g CO₂/km)
Initial Heading
107° True
Initial compass bearing towards destination
Estimated Travel Duration by Aircraft Class
Commercial Jet (Boeing 787 / A350)
1h 37m
Speed: ~850 km/h (459 knots)
Business Jet (Gulfstream G650)
1h 32m
Speed: ~920 km/h (496 knots)
Turboprop Aircraft (ATR-72 / Q400)
2h 19m
Speed: ~520 km/h (280 knots)
Passport & Visa Entry Requirements
🇺🇸 United States→🇺🇸 United States
Allowed Stay365 days
Passport Validity Required0 months
💡 Official Note: Freedom of movement within home country.
This information is provided for general guidance only and does not replace official verification with an embassy, consulate, or the IATA Travel Centre before you travel.
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Flight Path & Geodetic Arc Map
Great Circle Flight Arc Path
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Departure Airport Specs
Chicago O'Hare International Airport (ORD)
- City / Country: Chicago, United States
- ICAO Code: KORD
- Coordinates: 41.9786°, -87.9048°
- Timezone: America/Chicago
- Elevation: 680 ft
Arrival Airport Specs
Washington Dulles International Airport (IAD)
- City / Country: Dulles, United States
- ICAO Code: KIAD
- Coordinates: 38.9445°, -77.4558°
- Timezone: America/New_York
- Elevation: 312 ft
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