Need help booking?
Unpublished phone-only deals available
NHT to ROI: distance & flight time
Northolt (RAF Northolt) → Roi Et (Roi Et Airport)
5,937 mi
9,555 km · 5,159 nm
12h 7m
estimated nonstop flight time
+6h
time difference · heading east
See live NHT→ROI fares Phone-only fares on this route — call free
Flight time details
5,937 miles nonstop takes roughly 12h 7m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time gain when reading arrival times on your ticket.
The two airports
- NHT — RAF Northolt · Northolt, United Kingdom
- 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 NHT
- LHR · London Heathrow Airport6 mi away
- LGW · London Gatwick Airport30 mi away
- HYC · Wycombe Air Park17 mi away
- LCY · London City Airport21 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 NHT from ROI?
The flight distance from Northolt (NHT) to Roi Et (ROI) is 5,937 miles (9,555 km, 5,159 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from NHT to ROI?
A nonstop flight takes about 12h 7m 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 NHT to ROI?
Nonstop service on NHT–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 12h 7m nonstop estimate.
What is the time difference between Northolt and Roi Et?
Roi Et is 6 hours ahead of Northolt.
What is the cheapest way to fly from NHT to ROI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on NHT–ROI that never appear on search engines, with no booking fees.
Why are some NHT to ROI fares phone-only?
Consolidator contracts let us sell certain NHT–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.