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BST to CEI: distance & flight time
Lashkar Gah (Bost Airport) → Chiang Rai (Chiang Rai International Airport)
2,339 mi
3,764 km · 2,032 nm
5h 3m
estimated nonstop flight time
+2.5h
time difference · heading east
See live BST→CEI fares Phone-only fares on this route — call free
Flight time details
2,339 miles nonstop takes roughly 5h 3m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2.5-hour time gain when reading arrival times on your ticket.
The two airports
- BST — Bost Airport · Lashkar Gah, Afghanistan
- CEI — Chiang Rai International Airport · Chiang Rai, Thailand
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 BST
- OAZ · Camp Bastion Airport23 mi away
- KDH · Kandahar Airport87 mi away
- TII · Tarin Kowt Airport114 mi away
- FAH · Farah Airport140 mi away
Near CEI
- THL · Tachileik Airport37 mi away
- HOE · Ban Huoeisay Airport42 mi away
- MOG · Mong Hsat Airport56 mi away
- KET · Kengtung Airport95 mi away
Frequently asked questions
How far is BST from CEI?
The flight distance from Lashkar Gah (BST) to Chiang Rai (CEI) is 2,339 miles (3,764 km, 2,032 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from BST to CEI?
A nonstop flight takes about 5h 3m 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 BST to CEI?
Nonstop service on BST–CEI 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 3m nonstop estimate.
What is the time difference between Lashkar Gah and Chiang Rai?
Chiang Rai is 2.5 hours ahead of Lashkar Gah.
What is the cheapest way to fly from BST to CEI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on BST–CEI that never appear on search engines, with no booking fees.
Why are some BST to CEI fares phone-only?
Consolidator contracts let us sell certain BST–CEI 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.