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IAD to HRI: distance & flight time
Washington (Washington Dulles International Airport) → Mattala (Mattala Rajapaksa International Airport)
9,024 mi
14,523 km · 7,842 nm
18h 10m
estimated nonstop flight time
+9.5h
time difference · heading northeast
See live IAD→HRI fares Phone-only fares on this route — call free
Flight time details
9,024 miles nonstop takes roughly 18h 10m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 9.5-hour time gain when reading arrival times on your ticket.
The two airports
- IAD — Washington Dulles International Airport · Washington, United States
- HRI — Mattala Rajapaksa International Airport · Mattala, 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 IAD
Near HRI
- WRZ · Weerawila Airport8 mi away
- KCT · Koggala Airport59 mi away
- ADP · Ampara Airport81 mi away
- RML · Colombo Ratmalana Airport93 mi away
Frequently asked questions
How far is IAD from HRI?
The flight distance from Washington (IAD) to Mattala (HRI) is 9,024 miles (14,523 km, 7,842 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IAD to HRI?
A nonstop flight takes about 18h 10m 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 Washington and Mattala?
Mattala is 9.5 hours ahead of Washington.
What is the cheapest way to fly from IAD to HRI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IAD–HRI that never appear on search engines, with no booking fees.