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IAD to TNH: distance & flight time
Washington (Washington Dulles International Airport) → Tonghua (Tonghua Sanyuanpu Airport)
6,641 mi
10,688 km · 5,771 nm
13h 29m
estimated nonstop flight time
+12h
time difference · heading north
See live IAD→TNH 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 gain when reading arrival times on your ticket.
The two airports
- IAD — Washington Dulles International Airport · Washington, United States
- TNH — Tonghua Sanyuanpu Airport · Tonghua, China
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 TNH
- NBS · Changbaishan Airport98 mi away
- CGQ · Longjia Airport120 mi away
- SHE · Taoxian Airport122 mi away
Frequently asked questions
How far is IAD from TNH?
The flight distance from Washington (IAD) to Tonghua (TNH) 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 IAD to TNH?
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 IAD to TNH?
Nonstop service on IAD–TNH 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 Washington and Tonghua?
Tonghua is 12 hours ahead of Washington.
What is the cheapest way to fly from IAD to TNH?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IAD–TNH that never appear on search engines, with no booking fees.
Why are some IAD to TNH fares phone-only?
Consolidator contracts let us sell certain IAD–TNH 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.