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CEI to APA: distance & flight time
Chiang Rai (Chiang Rai International Airport) → Denver (Centennial Airport)
8,025 mi
12,915 km · 6,974 nm
16h 12m
estimated nonstop flight time
-13h
time difference · heading north
See live CEI→APA fares Phone-only fares on this route — call free
Flight time details
8,025 miles nonstop takes roughly 16h 12m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 13-hour time set-back when reading arrival times on your ticket.
The two airports
- CEI — Chiang Rai International Airport · Chiang Rai, Thailand
- APA — Centennial Airport · Denver, United States
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 CEI
- THL · Tachileik Airport37 mi away
- HOE · Ban Huoeisay Airport42 mi away
- MOG · Mong Hsat Airport56 mi away
- KET · Kengtung Airport95 mi away
Near APA
- DEN · Denver International Airport22 mi away
- BFK · Buckley Air Force Base10 mi away
- BJC · Rocky Mountain Metropolitan Airport27 mi away
- WBU · Boulder Municipal Airport38 mi away
Frequently asked questions
How far is CEI from APA?
The flight distance from Chiang Rai (CEI) to Denver (APA) is 8,025 miles (12,915 km, 6,974 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CEI to APA?
A nonstop flight takes about 16h 12m 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 Chiang Rai and Denver?
Denver is 13 hours behind Chiang Rai.
What is the cheapest way to fly from CEI to APA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CEI–APA that never appear on search engines, with no booking fees.