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XSI to ONT: distance & flight time
South Indian Lake (South Indian Lake Airport) → Ontario (Ontario International Airport)
1,800 mi
2,897 km · 1,565 nm
4h
estimated nonstop flight time
-2h
time difference · heading southwest
See live XSI→ONT fares Phone-only fares on this route — call free
Flight time details
1,800 miles nonstop takes roughly 4h gate to gate, flying southwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time set-back when reading arrival times on your ticket.
The two airports
- XSI — South Indian Lake Airport · South Indian Lake, Canada
- ONT — Ontario International Airport · Ontario, United States
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 XSI
- YLR · Leaf Rapids Airport45 mi away
- YTH · Thompson Airport79 mi away
- YYL · Lynn Lake Airport82 mi away
- KES · Kelsey Airport105 mi away
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
Frequently asked questions
How far is XSI from ONT?
The flight distance from South Indian Lake (XSI) to Ontario (ONT) 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 XSI to ONT?
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 South Indian Lake and Ontario?
Ontario is 2 hours behind South Indian Lake.
What is the cheapest way to fly from XSI to ONT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on XSI–ONT that never appear on search engines, with no booking fees.