Need help booking?
Unpublished phone-only deals available
THQ to IAD: distance & flight time
Tianshui (Tianshui Maijishan Airport) → Washington (Washington Dulles International Airport)
7,354 mi
11,835 km · 6,390 nm
14h 53m
estimated nonstop flight time
-12h
time difference · heading north
See live THQ→IAD fares Phone-only fares on this route — call free
Flight time details
7,354 miles nonstop takes roughly 14h 53m 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
- THQ — Tianshui Maijishan Airport · Tianshui, 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 THQ
- LNL · Longnan Chengzhou Airport53 mi away
- GYU · Guyuan Liupanshan Airport107 mi away
- HZG · Hanzhong Chenggu Airport125 mi away
- IQN · Qingyang Airport131 mi away
Frequently asked questions
How far is THQ from IAD?
The flight distance from Tianshui (THQ) to Washington (IAD) is 7,354 miles (11,835 km, 6,390 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from THQ to IAD?
A nonstop flight takes about 14h 53m 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 Tianshui and Washington?
Washington is 12 hours behind Tianshui.
What is the cheapest way to fly from THQ to IAD?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on THQ–IAD that never appear on search engines, with no booking fees.