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ADU to BIR: distance & flight time
Ardabil (Ardabil Airport) → Biratnagar (Biratnagar Airport)
2,388 mi
3,844 km · 2,075 nm
5h 9m
estimated nonstop flight time
+2.3h
time difference · heading east
See live ADU→BIR fares Phone-only fares on this route — call free
Flight time details
2,388 miles nonstop takes roughly 5h 9m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2.3-hour time gain when reading arrival times on your ticket.
The two airports
- ADU — Ardabil Airport · Ardabil, Iran
- BIR — Biratnagar Airport · Biratnagar, Nepal
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 ADU
- LLK · Lankaran International Airport36 mi away
- PFQ · Parsabade Moghan Airport93 mi away
- RAS · Sardar-e-Jangal Airport95 mi away
- JWN · Zanjan Airport107 mi away
Near BIR
- RJB · Rajbiraj Airport33 mi away
- BHP · Bhojpur Airport48 mi away
- BDP · Bhadrapur Airport51 mi away
- TMI · Tumling Tar Airport58 mi away
Frequently asked questions
How far is ADU from BIR?
The flight distance from Ardabil (ADU) to Biratnagar (BIR) is 2,388 miles (3,844 km, 2,075 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ADU to BIR?
A nonstop flight takes about 5h 9m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from ADU to BIR?
Nonstop service on ADU–BIR depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 5h 9m nonstop estimate.
What is the time difference between Ardabil and Biratnagar?
Biratnagar is 2.3 hours ahead of Ardabil.
What is the cheapest way to fly from ADU to BIR?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ADU–BIR that never appear on search engines, with no booking fees.
Why are some ADU to BIR fares phone-only?
Consolidator contracts let us sell certain ADU–BIR tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.