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IAD to TKH: distance & flight time
Washington (Washington Dulles International Airport) → Nakhon Sawan (Takhli Airport)
8,688 mi
13,981 km · 7,549 nm
17h 30m
estimated nonstop flight time
+11h
time difference · heading north
See live IAD→TKH fares Phone-only fares on this route — call free
Flight time details
8,688 miles nonstop takes roughly 17h 30m 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
- TKH — Takhli Airport · Nakhon Sawan, 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 TKH
- KDT · Kamphaeng Saen Airport85 mi away
- DMK · Don Mueang International Airport97 mi away
- PHS · Phitsanulok Airport104 mi away
- BKK · Suvarnabhumi Airport114 mi away
Frequently asked questions
How far is IAD from TKH?
The flight distance from Washington (IAD) to Nakhon Sawan (TKH) is 8,688 miles (13,981 km, 7,549 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IAD to TKH?
A nonstop flight takes about 17h 30m 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 Nakhon Sawan?
Nakhon Sawan is 11 hours ahead of Washington.
What is the cheapest way to fly from IAD to TKH?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IAD–TKH that never appear on search engines, with no booking fees.