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TNH to IAD: distance & flight time
Tonghua (Tonghua Sanyuanpu Airport) → Washington (Washington Dulles International Airport)
6,641 mi
10,688 km · 5,771 nm
13h 29m
estimated nonstop flight time
-12h
time difference · heading north
See live TNH→IAD fares Phone-only fares on this route — call free
Flight time details
6,641 miles nonstop takes roughly 13h 29m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 12-hour time set-back when reading arrival times on your ticket.
The two airports
- TNH — Tonghua Sanyuanpu Airport · Tonghua, China
- 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 TNH
- NBS · Changbaishan Airport98 mi away
- CGQ · Longjia Airport120 mi away
- SHE · Taoxian Airport122 mi away
Frequently asked questions
How far is TNH from IAD?
The flight distance from Tonghua (TNH) to Washington (IAD) is 6,641 miles (10,688 km, 5,771 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from TNH to IAD?
A nonstop flight takes about 13h 29m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from TNH to IAD?
Nonstop service on TNH–IAD depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 13h 29m nonstop estimate.
What is the time difference between Tonghua and Washington?
Washington is 12 hours behind Tonghua.
What is the cheapest way to fly from TNH to IAD?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on TNH–IAD that never appear on search engines, with no booking fees.
Why are some TNH to IAD fares phone-only?
Consolidator contracts let us sell certain TNH–IAD tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.