Need help booking?
Unpublished phone-only deals available
IAD to DBQ: distance & flight time
Washington (Washington Dulles International Airport) → Dubuque IA (Dubuque Regional Airport)
734 mi
1,180 km · 637 nm
2h 4m
estimated nonstop flight time
-1h
time difference · heading northwest
See live IAD→DBQ fares Phone-only fares on this route — call free
Flight time details
734 miles nonstop takes roughly 2h 4m 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
- DBQ — Dubuque Regional Airport · Dubuque IA, 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 DBQ
- CWI · Clinton Municipal Airport44 mi away
- PCD · Prairie Du Chien Municipal Airport48 mi away
- LNR · Tri-County Regional Airport62 mi away
- CID · The Eastern Iowa Airport63 mi away
Frequently asked questions
How far is IAD from DBQ?
The flight distance from Washington (IAD) to Dubuque IA (DBQ) is 734 miles (1,180 km, 637 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IAD to DBQ?
A nonstop flight takes about 2h 4m 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 Dubuque IA?
Dubuque IA is 1 hour behind Washington.
What is the cheapest way to fly from IAD to DBQ?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IAD–DBQ that never appear on search engines, with no booking fees.