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The straight-line distance between Tehran (IKA) and Washington (IAD) is 10,206 kilometres (6,342 miles), giving an estimated nonstop flight time of approximately 12h 30m if flown directly. This is a long-haul route.
Nonstop service on a given route can change as airlines adjust their schedules. Use our search tool below to check which airlines currently fly Tehran to Washington nonstop versus with a connection, along with real-time prices.
The flight time above is a distance-based estimate, not a confirmed schedule. Always verify current nonstop availability when you search, since not every city pair has guaranteed nonstop service.
Even for the same direct flight, prices vary significantly between platforms. Our tool compares 500+ airlines and 100+ websites simultaneously so you always get the best fare.
Baggage policies vary between airlines — budget carriers typically charge extra for checked bags while full-service airlines usually include an allowance. Always verify the rules for your specific ticket before arriving at the airport.
Tuesday and Wednesday departures on the IKA–IAD route are typically 10–15% cheaper than Friday and Sunday. Early morning and late evening flights are also priced lower due to lower demand.
Discover the best experiences, tours, and attractions in Washington. Book in advance for skip-the-line access and the best prices.
Top-rated tours and experiences in Washington, ranked by traveller rating. Prices are per person and change with date and group size.
Washington is 7.5 hours behind Tehran right now. Flying west gives hours back: you can arrive at a local time earlier than you left, which most people adjust to more easily than the eastbound trip.
Crossing a border: entry rules for United States depend on your nationality and change without much notice, so we do not print them here. Check the IATA Travel Centre — the same passport and visa database airlines check at the gate — and confirm your passport has enough validity left, since many countries require six months beyond your return date.
