Need help booking?
Unpublished phone-only deals available
IAD to KKC: distance & flight time
Washington (Washington Dulles International Airport) → Khon Kaen (Khon Kaen Airport)
8,608 mi
13,854 km · 7,480 nm
17h 21m
estimated nonstop flight time
+11h
time difference · heading north
See live IAD→KKC fares Phone-only fares on this route — call free
Flight time details
8,608 miles nonstop takes roughly 17h 21m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 11-hour time gain when reading arrival times on your ticket.
The two airports
- IAD — Washington Dulles International Airport · Washington, United States
- KKC — Khon Kaen Airport · Khon Kaen, Thailand
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 KKC
- UTH · Udon Thani Airport64 mi away
- ROI · Roi Et Airport70 mi away
- BFV · Buri Ram Airport91 mi away
- LOE · Loei Airport97 mi away
Frequently asked questions
How far is IAD from KKC?
The flight distance from Washington (IAD) to Khon Kaen (KKC) is 8,608 miles (13,854 km, 7,480 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IAD to KKC?
A nonstop flight takes about 17h 21m 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 Khon Kaen?
Khon Kaen is 11 hours ahead of Washington.
What is the cheapest way to fly from IAD to KKC?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IAD–KKC that never appear on search engines, with no booking fees.