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ONT to DED: distance & flight time
Ontario (Ontario International Airport) → Dehra Dun (Dehradun Airport)
7,880 mi
12,682 km · 6,848 nm
15h 55m
estimated nonstop flight time
+12.5h
time difference · heading north
See live ONT→DED fares Phone-only fares on this route — call free
Flight time details
7,880 miles nonstop takes roughly 15h 55m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 12.5-hour time gain when reading arrival times on your ticket.
The two airports
- ONT — Ontario International Airport · Ontario, United States
- DED — Dehradun Airport · Dehra Dun, India
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 DED
- IXC · Chandigarh Airport89 mi away
- SLV · Shimla Airport90 mi away
- PGH · Pantnagar Airport111 mi away
- DEL · Indira Gandhi International Airport130 mi away
Frequently asked questions
How far is ONT from DED?
The flight distance from Ontario (ONT) to Dehra Dun (DED) is 7,880 miles (12,682 km, 6,848 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ONT to DED?
A nonstop flight takes about 15h 55m 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 Dehra Dun?
Dehra Dun is 12.5 hours ahead of Ontario.
What is the cheapest way to fly from ONT to DED?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ONT–DED that never appear on search engines, with no booking fees.