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IAD to TGA: distance & flight time
Washington (Washington Dulles International Airport) → Tengah (Tengah Air Base)
9,649 mi
15,529 km · 8,385 nm
19h 23m
estimated nonstop flight time
+12h
time difference · heading north
See live IAD→TGA fares Phone-only fares on this route — call free
Flight time details
9,649 miles nonstop takes roughly 19h 23m 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
- TGA — Tengah Air Base · Tengah, Singapore
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 TGA
- SIN · Singapore Changi Airport20 mi away
- XSP · Seletar Airport11 mi away
- QPG · Paya Lebar Air Base14 mi away
- JHB · Senai International Airport18 mi away
Frequently asked questions
How far is IAD from TGA?
The flight distance from Washington (IAD) to Tengah (TGA) is 9,649 miles (15,529 km, 8,385 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IAD to TGA?
A nonstop flight takes about 19h 23m 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 Tengah?
Tengah is 12 hours ahead of Washington.
What is the cheapest way to fly from IAD to TGA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IAD–TGA that never appear on search engines, with no booking fees.