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LGA to ONT: distance & flight time
New York (La Guardia Airport) → Ontario (Ontario International Airport)
2,419 mi
3,892 km · 2,102 nm
5h 13m
estimated nonstop flight time
-3h
time difference · heading west
See live LGA→ONT fares Phone-only fares on this route — call free
Flight time details
2,419 miles nonstop takes roughly 5h 13m 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
- LGA — La Guardia Airport · New York, 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 LGA
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 LGA from ONT?
The flight distance from New York (LGA) to Ontario (ONT) is 2,419 miles (3,892 km, 2,102 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from LGA to ONT?
A nonstop flight takes about 5h 13m 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 New York and Ontario?
Ontario is 3 hours behind New York.
What is the cheapest way to fly from LGA to ONT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on LGA–ONT that never appear on search engines, with no booking fees.