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SLD to BIR: distance & flight time
Sliac (Sliač Airport) → Biratnagar (Biratnagar Airport)
3,889 mi
6,259 km · 3,380 nm
8h 6m
estimated nonstop flight time
+3.8h
time difference · heading east
See live SLD→BIR fares Phone-only fares on this route — call free
Flight time details
3,889 miles nonstop takes roughly 8h 6m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3.8-hour time gain when reading arrival times on your ticket.
The two airports
- SLD — Sliač Airport · Sliac, Slovakia
- 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 SLD
- ILZ · Žilina Airport47 mi away
- TAT · Poprad-Tatry Airport59 mi away
- PZY · Piešťany Airport60 mi away
- UHE · Kunovice Airport82 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 SLD from BIR?
The flight distance from Sliac (SLD) to Biratnagar (BIR) is 3,889 miles (6,259 km, 3,380 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SLD to BIR?
A nonstop flight takes about 8h 6m 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 Sliac and Biratnagar?
Biratnagar is 3.8 hours ahead of Sliac.
What is the cheapest way to fly from SLD to BIR?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SLD–BIR that never appear on search engines, with no booking fees.