Need help booking?
Unpublished phone-only deals available
IAD to RNS: distance & flight time
Washington (Washington Dulles International Airport) → Rennes (Rennes-Saint-Jacques Airport)
3,692 mi
5,941 km · 3,208 nm
7h 42m
estimated nonstop flight time
+6h
time difference · heading northeast
See live IAD→RNS fares Phone-only fares on this route — call free
Flight time details
3,692 miles nonstop takes roughly 7h 42m 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
- RNS — Rennes-Saint-Jacques Airport · Rennes, 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 RNS
- DNR · Dinard-Pleurtuit-Saint-Malo Airport39 mi away
- LVA · Laval-Entrammes Airport46 mi away
- VNE · Vannes-Meucon Airport51 mi away
- SNR · Saint-Nazaire-Montoir Airport56 mi away
Frequently asked questions
How far is IAD from RNS?
The flight distance from Washington (IAD) to Rennes (RNS) is 3,692 miles (5,941 km, 3,208 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IAD to RNS?
A nonstop flight takes about 7h 42m 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 Rennes?
Rennes is 6 hours ahead of Washington.
What is the cheapest way to fly from IAD to RNS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IAD–RNS that never appear on search engines, with no booking fees.