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KOP to GAI: distance & flight time
Nakhon Phanom (Nakhon Phanom Airport) → Gaithersburg (Montgomery County Airpark)
8,528 mi
13,724 km · 7,410 nm
17h 11m
estimated nonstop flight time
-11h
time difference · heading north
See live KOP→GAI fares Phone-only fares on this route — call free
Flight time details
8,528 miles nonstop takes roughly 17h 11m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 11-hour time set-back when reading arrival times on your ticket.
The two airports
- KOP — Nakhon Phanom Airport · Nakhon Phanom, Thailand
- GAI — Montgomery County Airpark · Gaithersburg, 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 KOP
- SNO · Sakon Nakhon Airport37 mi away
- ZVK · Savannakhet Airport58 mi away
- ROI · Roi Et Airport105 mi away
- VII · Vinh Airport115 mi away
Near GAI
Frequently asked questions
How far is KOP from GAI?
The flight distance from Nakhon Phanom (KOP) to Gaithersburg (GAI) is 8,528 miles (13,724 km, 7,410 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KOP to GAI?
A nonstop flight takes about 17h 11m 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 Nakhon Phanom and Gaithersburg?
Gaithersburg is 11 hours behind Nakhon Phanom.
What is the cheapest way to fly from KOP to GAI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KOP–GAI that never appear on search engines, with no booking fees.