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IKA to DCA: distance & flight time
Tehran (Imam Khomeini International Airport) → Washington (Ronald Reagan Washington National Airport)
6,333 mi
10,191 km · 5,503 nm
12h 53m
estimated nonstop flight time
-7.5h
time difference · heading northwest
See live IKA→DCA fares Phone-only fares on this route — call free
Flight time details
6,333 miles nonstop takes roughly 12h 53m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 7.5-hour time set-back when reading arrival times on your ticket.
The two airports
- IKA — Imam Khomeini International Airport · Tehran, Iran
- DCA — Ronald Reagan Washington National Airport · Washington, United States
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 IKA
- THR · Mehrabad International Airport21 mi away
- PYK · Payam International Airport31 mi away
- GZW · Qazvin Airport84 mi away
- NSH · Noshahr Airport88 mi away
Near DCA
Frequently asked questions
How far is IKA from DCA?
The flight distance from Tehran (IKA) to Washington (DCA) is 6,333 miles (10,191 km, 5,503 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IKA to DCA?
A nonstop flight takes about 12h 53m 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 Tehran and Washington?
Washington is 7.5 hours behind Tehran.
What is the cheapest way to fly from IKA to DCA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IKA–DCA that never appear on search engines, with no booking fees.