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IAD to PHS: distance & flight time
Washington (Washington Dulles International Airport) → Phitsanulok (Phitsanulok Airport)
8,584 mi
13,814 km · 7,459 nm
17h 18m
estimated nonstop flight time
+11h
time difference · heading north
See live IAD→PHS fares Phone-only fares on this route — call free
Flight time details
8,584 miles nonstop takes roughly 17h 18m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 11-hour time gain when reading arrival times on your ticket.
The two airports
- IAD — Washington Dulles International Airport · Washington, United States
- PHS — Phitsanulok Airport · Phitsanulok, Thailand
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 IAD
Near PHS
- THS · Sukhothai Airport44 mi away
- PHY · Phetchabun Airport61 mi away
- TKT · Tak Airport68 mi away
- PRH · Phrae Airport94 mi away
Frequently asked questions
How far is IAD from PHS?
The flight distance from Washington (IAD) to Phitsanulok (PHS) is 8,584 miles (13,814 km, 7,459 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IAD to PHS?
A nonstop flight takes about 17h 18m 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 Washington and Phitsanulok?
Phitsanulok is 11 hours ahead of Washington.
What is the cheapest way to fly from IAD to PHS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IAD–PHS that never appear on search engines, with no booking fees.