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DAY to ONT: distance & flight time
Dayton (James M Cox Dayton International Airport) → Ontario (Ontario International Airport)
1,875 mi
3,017 km · 1,629 nm
4h 9m
estimated nonstop flight time
-3h
time difference · heading west
See live DAY→ONT fares Phone-only fares on this route — call free
Flight time details
1,875 miles nonstop takes roughly 4h 9m 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
- DAY — James M Cox Dayton International Airport · Dayton, 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 DAY
- FFO · Wright-Patterson Air Force Base10 mi away
- SGH · Springfield-Beckley Municipal Airport21 mi away
- MGY · Dayton-Wright Brothers Airport22 mi away
- ILN · Wilmington Airpark40 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 DAY from ONT?
The flight distance from Dayton (DAY) to Ontario (ONT) is 1,875 miles (3,017 km, 1,629 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from DAY to ONT?
A nonstop flight takes about 4h 9m 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 Dayton and Ontario?
Ontario is 3 hours behind Dayton.
What is the cheapest way to fly from DAY to ONT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on DAY–ONT that never appear on search engines, with no booking fees.