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CEI to IAD: distance & flight time
Chiang Rai (Chiang Rai International Airport) → Washington (Washington Dulles International Airport)
8,364 mi
13,460 km · 7,268 nm
16h 52m
estimated nonstop flight time
-11h
time difference · heading north
See live CEI→IAD fares Phone-only fares on this route — call free
Flight time details
8,364 miles nonstop takes roughly 16h 52m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 11-hour time set-back when reading arrival times on your ticket.
The two airports
- CEI — Chiang Rai International Airport · Chiang Rai, Thailand
- 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 CEI
- THL · Tachileik Airport37 mi away
- HOE · Ban Huoeisay Airport42 mi away
- MOG · Mong Hsat Airport56 mi away
- KET · Kengtung Airport95 mi away
Frequently asked questions
How far is CEI from IAD?
The flight distance from Chiang Rai (CEI) to Washington (IAD) is 8,364 miles (13,460 km, 7,268 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CEI to IAD?
A nonstop flight takes about 16h 52m 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 Chiang Rai and Washington?
Washington is 11 hours behind Chiang Rai.
What is the cheapest way to fly from CEI to IAD?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CEI–IAD that never appear on search engines, with no booking fees.