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IAH to CCU: distance & flight time
Houston (George Bush Intercontinental Houston Airport) → Kolkata (Netaji Subhash Chandra Bose International Airport)
8,791 mi
14,148 km · 7,639 nm
17h 42m
estimated nonstop flight time
+10.5h
time difference · heading north
See live IAH→CCU fares Phone-only fares on this route — call free
Flight time details
8,791 miles nonstop takes roughly 17h 42m 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
- CCU — Netaji Subhash Chandra Bose International Airport · Kolkata, India
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 CCU
- JSR · Jessore Airport58 mi away
- RDP · Kazi Nazrul Islam Airport102 mi away
- IRD · Ishurdi Airport110 mi away
- BZL · Barisal Airport119 mi away
Frequently asked questions
How far is IAH from CCU?
The flight distance from Houston (IAH) to Kolkata (CCU) is 8,791 miles (14,148 km, 7,639 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IAH to CCU?
A nonstop flight takes about 17h 42m 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 Kolkata?
Kolkata is 10.5 hours ahead of Houston.
What is the cheapest way to fly from IAH to CCU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IAH–CCU that never appear on search engines, with no booking fees.