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IWS to IAD: distance & flight time
Houston (West Houston Airport) → Washington (Washington Dulles International Airport)
1,212 mi
1,950 km · 1,053 nm
3h 6m
estimated nonstop flight time
+1h
time difference · heading northeast
See live IWS→IAD fares Phone-only fares on this route — call free
Flight time details
1,212 miles nonstop takes roughly 3h 6m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time gain when reading arrival times on your ticket.
The two airports
- IWS — West Houston Airport · Houston, United States
- IAD — Washington Dulles International Airport · Washington, 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 IWS
- IAH · George Bush Intercontinental Houston Airport23 mi away
- AAP · Andrau Airpark8 mi away
- SGR · Sugar Land Regional Airport14 mi away
- DWH · David Wayne Hooks Memorial Airport18 mi away
Frequently asked questions
How far is IWS from IAD?
The flight distance from Houston (IWS) to Washington (IAD) is 1,212 miles (1,950 km, 1,053 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IWS to IAD?
A nonstop flight takes about 3h 6m 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 Houston and Washington?
Washington is 1 hour ahead of Houston.
What is the cheapest way to fly from IWS to IAD?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IWS–IAD that never appear on search engines, with no booking fees.