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PSM to DED: distance & flight time
Portsmouth (Portsmouth International at Pease Airport) → Dehra Dun (Dehradun Airport)
7,006 mi
11,276 km · 6,088 nm
14h 12m
estimated nonstop flight time
+9.5h
time difference · heading northeast
See live PSM→DED fares Phone-only fares on this route — call free
Flight time details
7,006 miles nonstop takes roughly 14h 12m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 9.5-hour time gain when reading arrival times on your ticket.
The two airports
- PSM — Portsmouth International at Pease Airport · Portsmouth, 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 PSM
- BOS · General Edward Lawrence Logan International Airport50 mi away
- LWM · Lawrence Municipal Airport29 mi away
- MHT · Manchester-Boston Regional Airport33 mi away
- BVY · Beverly Municipal Airport34 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 PSM from DED?
The flight distance from Portsmouth (PSM) to Dehra Dun (DED) is 7,006 miles (11,276 km, 6,088 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PSM to DED?
A nonstop flight takes about 14h 12m 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 Portsmouth and Dehra Dun?
Dehra Dun is 9.5 hours ahead of Portsmouth.
What is the cheapest way to fly from PSM to DED?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PSM–DED that never appear on search engines, with no booking fees.