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SME to ONT: distance & flight time
Somerset (Lake Cumberland Regional Airport) → Ontario (Ontario International Airport)
1,856 mi
2,988 km · 1,613 nm
4h 6m
estimated nonstop flight time
-3h
time difference · heading west
See live SME→ONT fares Phone-only fares on this route — call free
Flight time details
1,856 miles nonstop takes roughly 4h 6m 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
- SME — Lake Cumberland Regional Airport · Somerset, 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 SME
- LOZ · London-Corbin Airport/Magee Field29 mi away
- LEX · Blue Grass Airport68 mi away
- GLW · Glasgow Municipal Airport74 mi away
- FFT · Capital City Airport80 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 SME from ONT?
The flight distance from Somerset (SME) to Ontario (ONT) is 1,856 miles (2,988 km, 1,613 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SME to ONT?
A nonstop flight takes about 4h 6m 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 Somerset and Ontario?
Ontario is 3 hours behind Somerset.
What is the cheapest way to fly from SME to ONT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SME–ONT that never appear on search engines, with no booking fees.