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OKM to CEI: distance & flight time
Okmulgee (Okmulgee Regional Airport) → Chiang Rai (Chiang Rai International Airport)
8,456 mi
13,609 km · 7,348 nm
17h 3m
estimated nonstop flight time
+13h
time difference · heading north
See live OKM→CEI fares Phone-only fares on this route — call free
Flight time details
8,456 miles nonstop takes roughly 17h 3m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 13-hour time gain when reading arrival times on your ticket.
The two airports
- OKM — Okmulgee Regional Airport · Okmulgee, United States
- 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 OKM
- RVS · Richard Lloyd Jones Jr Airport26 mi away
- TUL · Tulsa International Airport37 mi away
- CUH · Cushing Municipal Airport50 mi away
- MLC · Mc Alester Regional Airport55 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 OKM from CEI?
The flight distance from Okmulgee (OKM) to Chiang Rai (CEI) is 8,456 miles (13,609 km, 7,348 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OKM to CEI?
A nonstop flight takes about 17h 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 OKM to CEI?
Nonstop service on OKM–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 17h 3m nonstop estimate.
What is the time difference between Okmulgee and Chiang Rai?
Chiang Rai is 13 hours ahead of Okmulgee.
What is the cheapest way to fly from OKM to CEI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OKM–CEI that never appear on search engines, with no booking fees.
Why are some OKM to CEI fares phone-only?
Consolidator contracts let us sell certain OKM–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.