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IAH to HAN: distance & flight time
Houston (George Bush Intercontinental Houston Airport) → Hanoi (Noi Bai International Airport)
8,630 mi
13,888 km · 7,499 nm
17h 23m
estimated nonstop flight time
+12h
time difference · heading northwest
See live IAH→HAN fares Phone-only fares on this route — call free
Flight time details
8,630 miles nonstop takes roughly 17h 23m gate to gate, flying northwest. 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
- IAH — George Bush Intercontinental Houston Airport · Houston, United States
- HAN — Noi Bai International Airport · Hanoi, Vietnam
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 IAH
- DWH · David Wayne Hooks Memorial Airport14 mi away
- IWS · West Houston Airport23 mi away
- AAP · Andrau Airpark23 mi away
- HOU · William P Hobby Airport24 mi away
Near HAN
- HPH · Cat Bi International Airport65 mi away
- SQH · Na-San Airport114 mi away
- NEU · Sam Neua Airport125 mi away
Frequently asked questions
How far is IAH from HAN?
The flight distance from Houston (IAH) to Hanoi (HAN) is 8,630 miles (13,888 km, 7,499 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IAH to HAN?
A nonstop flight takes about 17h 23m 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 Houston and Hanoi?
Hanoi is 12 hours ahead of Houston.
What is the cheapest way to fly from IAH to HAN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IAH–HAN that never appear on search engines, with no booking fees.