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IAD to ORD: distance & flight time
Washington (Washington Dulles International Airport) → Chicago (Chicago O'Hare International Airport)
587 mi
945 km · 510 nm
1h 45m
estimated nonstop flight time
-1h
time difference · heading northwest
See live IAD→ORD fares Phone-only fares on this route — call free
Flight time details
587 miles nonstop takes roughly 1h 45m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- IAD — Washington Dulles International Airport · Washington, United States
- ORD — Chicago O'Hare International Airport · Chicago, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near IAD
Near ORD
- PWK · Chicago Executive Airport9 mi away
- MDW · Chicago Midway International Airport15 mi away
- CGX · Chicago Meigs Airport17 mi away
- DPA · Dupage Airport18 mi away
Frequently asked questions
How far is IAD from ORD?
The flight distance from Washington (IAD) to Chicago (ORD) is 587 miles (945 km, 510 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IAD to ORD?
A nonstop flight takes about 1h 45m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Washington and Chicago?
Chicago is 1 hour behind Washington.
What is the cheapest way to fly from IAD to ORD?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IAD–ORD that never appear on search engines, with no booking fees.