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ONT to GUS: distance & flight time
Ontario (Ontario International Airport) → Peru (Grissom Air Reserve Base)
1,776 mi
2,858 km · 1,543 nm
3h 57m
estimated nonstop flight time
+3h
time difference · heading northeast
See live ONT→GUS fares Phone-only fares on this route — call free
Flight time details
1,776 miles nonstop takes roughly 3h 57m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3-hour time gain when reading arrival times on your ticket.
The two airports
- ONT — Ontario International Airport · Ontario, United States
- GUS — Grissom Air Reserve Base · Peru, 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 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 GUS
- OKK · Kokomo Municipal Airport10 mi away
- LAF · Purdue University Airport44 mi away
- AID · Anderson Municipal Darlington Field47 mi away
- MIE · Delaware County Johnson Field49 mi away
Frequently asked questions
How far is ONT from GUS?
The flight distance from Ontario (ONT) to Peru (GUS) is 1,776 miles (2,858 km, 1,543 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ONT to GUS?
A nonstop flight takes about 3h 57m 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 Peru?
Peru is 3 hours ahead of Ontario.
What is the cheapest way to fly from ONT to GUS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ONT–GUS that never appear on search engines, with no booking fees.