Need help booking?
Unpublished phone-only deals available
KOP to DCA: distance & flight time
Nakhon Phanom (Nakhon Phanom Airport) → Washington (Ronald Reagan Washington National Airport)
8,550 mi
13,760 km · 7,430 nm
17h 14m
estimated nonstop flight time
-11h
time difference · heading north
See live KOP→DCA fares Phone-only fares on this route — call free
Flight time details
8,550 miles nonstop takes roughly 17h 14m 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
- DCA — Ronald Reagan Washington National Airport · Washington, 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 DCA
Frequently asked questions
How far is KOP from DCA?
The flight distance from Nakhon Phanom (KOP) to Washington (DCA) is 8,550 miles (13,760 km, 7,430 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KOP to DCA?
A nonstop flight takes about 17h 14m 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 Washington?
Washington is 11 hours behind Nakhon Phanom.
What is the cheapest way to fly from KOP to DCA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KOP–DCA that never appear on search engines, with no booking fees.