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DCA to AOU: distance & flight time

Washington (Ronald Reagan Washington National Airport) → Attopeu (Attopeu Airport)

8,720 mi
14,034 km · 7,578 nm
17h 34m
estimated nonstop flight time
time difference · heading north
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Flight time details

8,720 miles nonstop takes roughly 17h 34m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.

The two airports

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.

Frequently asked questions

How far is DCA from AOU?

The flight distance from Washington (DCA) to Attopeu (AOU) is 8,720 miles (14,034 km, 7,578 nautical miles), measured along the great-circle route airlines actually fly.

How long is the flight from DCA to AOU?

A nonstop flight takes about 17h 34m 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 cheapest way to fly from DCA to AOU?

Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on DCA–AOU that never appear on search engines, with no booking fees.
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