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IAH to ADP: distance & flight time
Houston (George Bush Intercontinental Houston Airport) → Galoya (Ampara Airport)
9,850 mi
15,852 km · 8,560 nm
19h 47m
estimated nonstop flight time
+10.5h
time difference · heading north
See live IAH→ADP fares Phone-only fares on this route — call free
Flight time details
9,850 miles nonstop takes roughly 19h 47m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 10.5-hour time gain when reading arrival times on your ticket.
The two airports
- IAH — George Bush Intercontinental Houston Airport · Houston, United States
- ADP — Ampara Airport · Galoya, Sri Lanka
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 ADP
- BTC · Batticaloa Airport26 mi away
- HIM · Hingurakgoda Air Force Base66 mi away
- GIU · Sigiriya Air Force Base75 mi away
- WRZ · Weerawila Airport80 mi away
Frequently asked questions
How far is IAH from ADP?
The flight distance from Houston (IAH) to Galoya (ADP) is 9,850 miles (15,852 km, 8,560 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IAH to ADP?
A nonstop flight takes about 19h 47m 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 Galoya?
Galoya is 10.5 hours ahead of Houston.
What is the cheapest way to fly from IAH to ADP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IAH–ADP that never appear on search engines, with no booking fees.