How long does it take to travel from Washington DC to Siem Reap?

By flight: approximately 19 hrs 41 min.

Are there flights from Washington DC to Siem Reap?

Yes, you can book flights from Washington DC (IAD) to Siem Reap (REP) on FareEagle. Flight time is approximately 19 hrs 41 min.

Washington DC to Siem Reap Distance & How to Reach

Q: What is the distance from Washington DC to Siem Reap?

The aerial distance from Washington DC to Siem Reap is approximately 14,202 km (8,825 miles). By road, the distance is approximately 18,463 km.

Q: What is the best way to travel from Washington DC to Siem Reap?

The fastest option is a flight (19 hrs 41 min).

District of Columbia to Cambodia · 14,202 km · Compare flights, trains, buses & driving

Washington DC to Siem Reap distance: 14202 km (aerial), approximately 18463 km by road. By flight: ~19 hrs 41 min. By train: ~284 hrs 3 min. By road: ~307 hrs 43 min.

Fly from: Delhi Mumbai Bengaluru Hyderabad Chennai

Washington DC

District of Columbia

Siem Reap

Cambodia

14,202 km

aerial distance (straight line)

8,825 miles

How to get from Washington DC to Siem Reap

✈

By Flight

19 hrs 41 min

IAD → REP

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Quick facts

Aerial distance

14,202 km (8,825 mi)

Road distance

~18,463 km

Recommended

Flight (19 hrs 41 min)

Most affordable

Flight

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📍 Washington DC to Siem Reap distance overview

The straight-line distance from Washington DC to Siem Reap is approximately 14,202 km (8,825 miles). By road, the distance increases to about 18,463 km due to terrain, highways, and road networks connecting District of Columbia to Cambodia.

14,202 kmAerial distance

~18,463 kmBy road

19 hrs 41 minFlight

✈️ By flight — Washington DC to Siem Reap

Fastest option IAD → REP 19 hrs 41 min

Flying is the fastest way to cover the 14,202 km distance. Flights from IAD to REP take approximately 19 hrs 41 min including boarding and taxiing. Multiple airlines operate on this route, and fares vary depending on the season, time of booking, and class of travel.

For the best prices, book 2-3 weeks in advance and opt for mid-week departures (Tuesday, Wednesday) which are typically cheaper than weekend flights.

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💡 Travel tips for Washington DC to Siem Reap

📅

Book early
International fares typically rise as departure approaches. Booking 3-6 weeks ahead tends to give the best prices, with last-minute fares often double or more.

🛡️

Valid passport
A passport valid for at least 6 months beyond your travel date is required. Check visa requirements for Cambodia before booking.

⏰️

Arrive 3 hours early
For international departures, arrive at the airport at least 3 hours before your scheduled flight to allow time for check-in, immigration and security.

📱

Compare airlines
Fares on the same route can vary 50-100% between airlines. Always compare options before booking — direct flights aren't always more expensive than connecting ones.

Where to stay in Siem Reap

Budget to luxury hotels. Compare prices on FareEagle.

View Siem Reap Hotels

🔗 Useful travel resources

For official travel information, regulations, and booking services:

DGCA — Indian aviation authority

Passport Seva — Passport and travel documents

Frequently asked questions

What is the distance from Washington DC to Siem Reap? ▼

The aerial (straight-line) distance from Washington DC to Siem Reap is approximately 14,202 km (8,825 miles). The flight takes approximately 19 hrs 41 min.

What is the best way to travel from Washington DC to Siem Reap? ▼

The fastest way is by flight, taking approximately 19 hrs 41 min from IAD to REP. You can search and compare flight prices on FareEagle.

How much does a flight from Washington DC to Siem Reap cost? ▼

Flight prices vary by airline, date, and booking time. Search on FareEagle to compare prices across all airlines. Booking 2-3 weeks in advance typically gives the best prices.

Can I book Washington DC to Siem Reap travel on FareEagle? ▼

Yes! FareEagle lets you compare and book flights, and hotels for the Washington DC to Siem Reap route. Compare prices across operators, get instant confirmation, and enjoy transparent pricing with no hidden charges.

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