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ONT to BIL: distance & flight time
Ontario (Ontario International Airport) → Billings (Billings Logan International Airport)
942 mi
1,516 km · 818 nm
2h 31m
estimated nonstop flight time
+1h
time difference · heading northeast
See live ONT→BIL fares Phone-only fares on this route — call free
Flight time details
942 miles nonstop takes roughly 2h 31m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time gain when reading arrival times on your ticket.
The two airports
- ONT — Ontario International Airport · Ontario, United States
- BIL — Billings Logan International Airport · Billings, 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 BIL
- COD · Yellowstone Regional Airport92 mi away
- LVM · Mission Field92 mi away
- LWT · Lewistown Municipal Airport96 mi away
- SHR · Sheridan County Airport105 mi away
Frequently asked questions
How far is ONT from BIL?
The flight distance from Ontario (ONT) to Billings (BIL) is 942 miles (1,516 km, 818 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ONT to BIL?
A nonstop flight takes about 2h 31m 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 Billings?
Billings is 1 hour ahead of Ontario.
What is the cheapest way to fly from ONT to BIL?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ONT–BIL that never appear on search engines, with no booking fees.