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ONT to XSI: distance & flight time
Ontario (Ontario International Airport) → South Indian Lake (South Indian Lake Airport)
1,800 mi
2,897 km · 1,565 nm
4h
estimated nonstop flight time
+2h
time difference · heading northeast
See live ONT→XSI fares Phone-only fares on this route — call free
Flight time details
1,800 miles nonstop takes roughly 4h gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time gain when reading arrival times on your ticket.
The two airports
- ONT — Ontario International Airport · Ontario, United States
- XSI — South Indian Lake Airport · South Indian Lake, Canada
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 ONT
- CCB · Cable Airport6 mi away
- CNO · Chino Airport6 mi away
- LAX · Los Angeles International Airport47 mi away
- RAL · Riverside Municipal Airport11 mi away
Near XSI
- YLR · Leaf Rapids Airport45 mi away
- YTH · Thompson Airport79 mi away
- YYL · Lynn Lake Airport82 mi away
- KES · Kelsey Airport105 mi away
Frequently asked questions
How far is ONT from XSI?
The flight distance from Ontario (ONT) to South Indian Lake (XSI) is 1,800 miles (2,897 km, 1,565 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ONT to XSI?
A nonstop flight takes about 4h 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 South Indian Lake?
South Indian Lake is 2 hours ahead of Ontario.
What is the cheapest way to fly from ONT to XSI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ONT–XSI that never appear on search engines, with no booking fees.