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BIR to IKA: distance & flight time
Biratnagar (Biratnagar Airport) → Tehran (Imam Khomeini International Airport)
2,213 mi
3,562 km · 1,923 nm
4h 48m
estimated nonstop flight time
-2.2h
time difference · heading northwest
See live BIR→IKA fares Phone-only fares on this route — call free
Flight time details
2,213 miles nonstop takes roughly 4h 48m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2.2-hour time set-back when reading arrival times on your ticket.
The two airports
- BIR — Biratnagar Airport · Biratnagar, Nepal
- IKA — Imam Khomeini International Airport · Tehran, Iran
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 BIR
- RJB · Rajbiraj Airport33 mi away
- BHP · Bhojpur Airport48 mi away
- BDP · Bhadrapur Airport51 mi away
- TMI · Tumling Tar Airport58 mi away
Near IKA
- THR · Mehrabad International Airport21 mi away
- PYK · Payam International Airport31 mi away
- GZW · Qazvin Airport84 mi away
- NSH · Noshahr Airport88 mi away
Frequently asked questions
How far is BIR from IKA?
The flight distance from Biratnagar (BIR) to Tehran (IKA) is 2,213 miles (3,562 km, 1,923 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from BIR to IKA?
A nonstop flight takes about 4h 48m 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 Biratnagar and Tehran?
Tehran is 2.2 hours behind Biratnagar.
What is the cheapest way to fly from BIR to IKA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on BIR–IKA that never appear on search engines, with no booking fees.