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ONO to HRI: distance & flight time
Ontario (Ontario Municipal Airport) → Mattala (Mattala Rajapaksa International Airport)
8,782 mi
14,133 km · 7,631 nm
17h 41m
estimated nonstop flight time
+11.5h
time difference · heading northwest
See live ONO→HRI fares Phone-only fares on this route — call free
Flight time details
8,782 miles nonstop takes roughly 17h 41m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 11.5-hour time gain when reading arrival times on your ticket.
The two airports
- ONO — Ontario Municipal Airport · Ontario, 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 ONO
- BOI · Boise Air Terminal/Gowen Field50 mi away
- BKE · Baker City Municipal Airport69 mi away
- MYL · McCall Municipal Airport75 mi away
- MUO · Mountain Home Air Force Base88 mi away
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 ONO from HRI?
The flight distance from Ontario (ONO) to Mattala (HRI) is 8,782 miles (14,133 km, 7,631 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ONO to HRI?
A nonstop flight takes about 17h 41m 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 Ontario and Mattala?
Mattala is 11.5 hours ahead of Ontario.
What is the cheapest way to fly from ONO to HRI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ONO–HRI that never appear on search engines, with no booking fees.