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IAD to CNG: distance & flight time
Washington (Washington Dulles International Airport) → Cognac (Cognac-Châteaubernard (BA 709) Air Base)
3,815 mi
6,139 km · 3,315 nm
7h 57m
estimated nonstop flight time
+6h
time difference · heading northeast
See live IAD→CNG fares Phone-only fares on this route — call free
Flight time details
3,815 miles nonstop takes roughly 7h 57m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time gain when reading arrival times on your ticket.
The two airports
- IAD — Washington Dulles International Airport · Washington, United States
- CNG — Cognac-Châteaubernard (BA 709) Air Base · Cognac, France
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 CNG
- ANG · Angoulême-Brie-Champniers Airport26 mi away
- RYN · Royan-Médis Airport32 mi away
- RCO · Rochefort-Saint-Agnant (BA 721) Airport36 mi away
- NIT · Niort-Souché Airport45 mi away
Frequently asked questions
How far is IAD from CNG?
The flight distance from Washington (IAD) to Cognac (CNG) is 3,815 miles (6,139 km, 3,315 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IAD to CNG?
A nonstop flight takes about 7h 57m 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 Cognac?
Cognac is 6 hours ahead of Washington.
What is the cheapest way to fly from IAD to CNG?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IAD–CNG that never appear on search engines, with no booking fees.