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IAD to UIH: distance & flight time
Washington (Washington Dulles International Airport) → Phucat (Phu Cat Airport)
8,758 mi
14,094 km · 7,610 nm
17h 38m
estimated nonstop flight time
+12h
time difference · heading north
See live IAD→UIH fares Phone-only fares on this route — call free
Flight time details
8,758 miles nonstop takes roughly 17h 38m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 12-hour time gain when reading arrival times on your ticket.
The two airports
- IAD — Washington Dulles International Airport · Washington, United States
- UIH — Phu Cat Airport · Phucat, Vietnam
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 UIH
- TBB · Dong Tac Airport66 mi away
- PXU · Pleiku Airport69 mi away
- VCL · Chu Lai International Airport103 mi away
- BMV · Buon Ma Thuot Airport108 mi away
Frequently asked questions
How far is IAD from UIH?
The flight distance from Washington (IAD) to Phucat (UIH) is 8,758 miles (14,094 km, 7,610 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IAD to UIH?
A nonstop flight takes about 17h 38m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from IAD to UIH?
Nonstop service on IAD–UIH depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 17h 38m nonstop estimate.
What is the time difference between Washington and Phucat?
Phucat is 12 hours ahead of Washington.
What is the cheapest way to fly from IAD to UIH?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IAD–UIH that never appear on search engines, with no booking fees.
Why are some IAD to UIH fares phone-only?
Consolidator contracts let us sell certain IAD–UIH tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.