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PWM to ONT: distance & flight time
Portland (Portland International Jetport Airport) → Ontario (Ontario International Airport)
2,592 mi
4,172 km · 2,253 nm
5h 33m
estimated nonstop flight time
-3h
time difference · heading west
See live PWM→ONT fares Phone-only fares on this route — call free
Flight time details
2,592 miles nonstop takes roughly 5h 33m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3-hour time set-back when reading arrival times on your ticket.
The two airports
- PWM — Portland International Jetport Airport · Portland, United States
- 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 PWM
- NHZ · Brunswick Executive Airport25 mi away
- LEW · Auburn Lewiston Municipal Airport28 mi away
- FRY · Eastern Slopes Regional Airport40 mi away
- PSM · Portsmouth International at Pease Airport47 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 PWM from ONT?
The flight distance from Portland (PWM) to Ontario (ONT) is 2,592 miles (4,172 km, 2,253 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PWM to ONT?
A nonstop flight takes about 5h 33m 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 Portland and Ontario?
Ontario is 3 hours behind Portland.
What is the cheapest way to fly from PWM to ONT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PWM–ONT that never appear on search engines, with no booking fees.