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SEN to CEI: distance & flight time
Southend (Southend Airport) → Chiang Rai (Chiang Rai International Airport)
5,526 mi
8,893 km · 4,802 nm
11h 18m
estimated nonstop flight time
+6h
time difference · heading east
See live SEN→CEI fares Phone-only fares on this route — call free
Flight time details
5,526 miles nonstop takes roughly 11h 18m 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
- SEN — Southend Airport · Southend, United Kingdom
- 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 SEN
- LGW · London Gatwick Airport48 mi away
- LHR · London Heathrow Airport50 mi away
- RCS · Rochester Airport17 mi away
- LCY · London City Airport28 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 SEN from CEI?
The flight distance from Southend (SEN) to Chiang Rai (CEI) is 5,526 miles (8,893 km, 4,802 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SEN to CEI?
A nonstop flight takes about 11h 18m 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 Southend and Chiang Rai?
Chiang Rai is 6 hours ahead of Southend.
What is the cheapest way to fly from SEN to CEI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SEN–CEI that never appear on search engines, with no booking fees.