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BST to ROI: distance & flight time
Lashkar Gah (Bost Airport) → Roi Et (Roi Et Airport)
2,691 mi
4,330 km · 2,338 nm
5h 45m
estimated nonstop flight time
+2.5h
time difference · heading east
See live BST→ROI fares Phone-only fares on this route — call free
Flight time details
2,691 miles nonstop takes roughly 5h 45m 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
- ROI — Roi Et Airport · Roi Et, 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 ROI
- KKC · Khon Kaen Airport70 mi away
- BFV · Buri Ram Airport70 mi away
- ZVK · Savannakhet Airport72 mi away
- SNO · Sakon Nakhon Airport78 mi away
Frequently asked questions
How far is BST from ROI?
The flight distance from Lashkar Gah (BST) to Roi Et (ROI) is 2,691 miles (4,330 km, 2,338 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from BST to ROI?
A nonstop flight takes about 5h 45m 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 ROI?
Nonstop service on BST–ROI 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 45m nonstop estimate.
What is the time difference between Lashkar Gah and Roi Et?
Roi Et is 2.5 hours ahead of Lashkar Gah.
What is the cheapest way to fly from BST to ROI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on BST–ROI that never appear on search engines, with no booking fees.
Why are some BST to ROI fares phone-only?
Consolidator contracts let us sell certain BST–ROI 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.