Find cheap flights to Phnom Penh from £377

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Find deals from Washington, D.C. to Phnom Penh

Find one-way and return tickets at the lowest prices, whether last-minute or planned in advance.

2 stops
Mon, Feb 9
Washington, D.C. IADPhnom Penh KTI

from £377
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2 stops
Mon, Feb 9
Washington, D.C. IADPhnom Penh KTI

from £381
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2 stops
Tue, Feb 10
Washington, D.C. IADPhnom Penh KTI

from £398
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2 stops
Wed, Feb 11
Washington, D.C. IADPhnom Penh KTI

from £398
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2 stops
Tue, Feb 10
Washington, D.C. IADPhnom Penh KTI

from £402
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2 stops
Sun, Feb 8
Washington, D.C. IADPhnom Penh KTI

from £402
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Find deals from Washington, D.C. to Phnom Penh

Find one-way and return tickets at the lowest prices, whether last-minute or planned in advance.

2 stops
Tue, Feb 10 – Wed, Feb 18
Washington, D.C. IADPhnom Penh KTI

from £759
Find deal
2 stops
Wed, Feb 11 – Thu, Feb 19
Washington, D.C. IADPhnom Penh KTI

from £789
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2 stops
Tue, Feb 10 – Wed, Feb 18
Washington, D.C. IADPhnom Penh KTI

from £789
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2 stops
Thu, Feb 12 – Wed, Feb 18
Washington, D.C. IADPhnom Penh KTI

from £811
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2 stops
Thu, Feb 12 – Fri, Feb 20
Washington, D.C. IADPhnom Penh KTI

from £811
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2 stops
Tue, Feb 10 – Wed, Feb 18
Washington, D.C. IADPhnom Penh KTI

from £814
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Cheapest time to fly from Washington, D.C. to Phnom Penh

One-way

Thu, Jan 8 - Thu, Jan 15£417
Fri, Jan 16 - Fri, Jan 23£605
Sat, Jan 24 - Sat, Jan 31£392
Sun, Feb 1 - Sat, Feb 7£403
Sun, Feb 8 - Sun, Feb 15£391
Mon, Feb 16 - Mon, Feb 23£394
Tue, Feb 24 - Sat, Feb 28£382
Sun, Mar 1 - Sat, Mar 7£382
Sun, Mar 8 - Sun, Mar 15£393
Mon, Mar 16 - Mon, Mar 23£352
Tue, Mar 24 - Tue, Mar 31£660

Round-trip

Thu, Jan 8 - Thu, Jan 15£641
Fri, Jan 16 - Fri, Jan 23£773
Sat, Jan 24 - Sat, Jan 31£639
Sun, Feb 1 - Sat, Feb 7£710
Sun, Feb 8 - Sun, Feb 15£873
Mon, Feb 16 - Mon, Feb 23£633
Tue, Feb 24 - Sat, Feb 28£610
Sun, Mar 1 - Sat, Mar 7£629
Sun, Mar 8 - Sun, Mar 15£614
Mon, Mar 16 - Mon, Mar 23£609
Tue, Mar 24 - Tue, Mar 31£688

Getting from Phnom Penh airport to the city center

Phnom Penh is served by Phnom Penh International Airport (PNH), located approximately 10 km west of the city center. The airport offers several airport transfers to city center options including taxis, ride-hailing services, tuk-tuks, and shuttle buses. Journey times typically range from 20 to 45 minutes depending on traffic conditions, which can be heavy during peak hours. Most transport options are available around the clock, though frequencies may vary at night.

Notes:

  • Prices in KHR with USD equivalents; table created in 2025 and subject to change.
  • US dollars are widely accepted in Cambodia; small change may be given in Cambodian riel.
  • Tuk-tuk and motorbike taxi fares should be negotiated before departure.
  • Traffic congestion is common during morning and evening rush hours.
  • We recommend checking official transport websites for your travel planning.

Updated: December 2025

When is the best time to visit Phnom Penh

Phnom Penh's best time depends on your priorities: dry-season comfort costs more, while monsoon months slash prices by 40%. Shoulder seasons balance weather and value. Explore seasonal flight deals, festival dates, and crowd patterns below to time your visit right.

High season
November - March
  • Prices: Peak rates for flights and hotels; book 8-10 weeks ahead for better deals, especially around festival dates.
  • Weather: Dry and pleasant 22–32 °C with minimal rain, just 1–3 rainy days per month—ideal for temple visits and riverside exploration.
  • Events: Water Festival (November) features dragon boat races on Tonlé Sap, Chinese New Year celebrations (January-February), and early Khmer New Year festivities (March).
Low season
May - October
  • Prices: Cheapest flights and accommodation—up to 40% less than peak season; book flexible tickets as afternoon storms may cause minor delays.
  • Weather: Hot and humid 24–35 °C with monsoon rains bringing 15–20 rainy days monthly; mornings stay dry for sightseeing before afternoon downpours.
  • Events: Pchum Ben Festival (September-October) honors ancestors at pagodas, Royal Ploughing Ceremony (May) marks planting season, King's Birthday (May) features citywide celebrations.
Shoulder season
April, November
  • Prices: Moderate rates—flights drop 20-25% from peak; book 4-6 weeks ahead for best value, especially around Water Festival (November).
  • Weather: Warm 23–34 °C with 5–8 rainy days monthly; April sees pre-monsoon heat while November brings post-rain freshness perfect for exploring temples.
  • Events: Khmer New Year (April) fills streets with water blessings and traditional games; Water Festival (November) showcases spectacular boat races on Tonlé Sap River.

Phnom Penh travel tips

Discover Phnom Penh's Charms: A Gateway to Cambodian Culture

Phnom Penh is a city where the past and present dance together in a captivating tango. With its tree-lined boulevards and French colonial architecture, it's a place that lures you with whispers of history and promises of vibrant city life. As you wander through bustling markets or the serene Royal Palace, you'll understand why seasoned travelers book flights to Phnom Penh time and again.

Whether it's sampling traditional Khmer dishes or exploring the city's cultural tapestry, there's always something to ignite the wanderlust in Kiwi.com's savvy globetrotters.

Starting Your Phnom Penh Adventure: From Airport to Attractions

Upon landing, Phnom Penh greets you with a blend of modern hustle and cultural heritage. Your first stop should be the Riverside district, where the Mekong gently laps against the city’s fringes. Here, you can stroll the Sisowath Quay, packed with lively eateries and cultural exhibitions.

For a dash of the unexpected, seek out the Tonle Bassac neighborhood, where local art galleries intersect with contemporary street life. Kiwi.com ensures that you'll arrive at the optimal time to dive headfirst into Phnom Penh's dynamic scene, thanks to our strategically planned flight options.

When to Fly to Phnom Penh: Timing Your Affordable Adventure

For budget-conscious travelers, the shoulder months of May and October present a golden opportunity to snag cheap flights to Phnom Penh. These periods offer a sweet spot between tourist crowds and ideal weather, with lush landscapes and cooler temperatures enhancing your experience.

Booking 4–6 weeks in advance can uncover hidden deals, especially when paired with Kiwi.com's handy price alerts. Whether you're flying from London, Paris, or beyond, our flexible search can connect you to the best route, perhaps through a scenic detour that transforms your flight into a memorable journey.

Navigating Phnom Penh's Airports: Efficient Travel Starts Here

Phnom Penh International Airport (PNH) is your gateway, with its proximity to the city center making arrivals smooth and stress-free. The airport offers a mix of budget and full-service airlines, giving you the freedom to choose according to your preferences and budget.

Upon arrival, affordable tuk-tuks and buses make the transition from landing to exploring seamless. Booking through Kiwi.com means you're covered by the Kiwi Guarantee, ensuring your journey remains uninterrupted and worry-free.

Smart Travel Tips for Your Phnom Penh Expedition

  • Set a Price Alert: Use Kiwi's Price Alerts to find the best deals.
  • Explore Nomad Mode: Try the Nomad Search Tool for multi-city adventures.
  • Eat Like a Local: Seek out Cambodian classics like amok trey at local eateries.
  • Stay Connected: Consider a local SIM card upon arrival for convenient navigation and communication.
  • Public Transport: Utilize the city's reliable and budget-friendly bus system.

Weather in Phnom Penh

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January32°C22°C
February34°C23°C
March36°C25°C
April35°C26°C
May34°C26°C
June33°C25°C
July32°C25°C
August32°C25°C
September31°C25°C
October31°C24°C
November30°C23°C
December30°C22°C
Hottest Month
36°C
March
Coldest month
22°C
January
Sunny days
201
days per year

14 day forecast

Saturday
17 Jan
33°C22°C
24 Jan
32°C21°C
Sunday
18 Jan
88%
31°C22°C
25 Jan
33°C21°C
Monday
19 Jan
75%
32°C22°C
26 Jan
34°C22°C
Tuesday
20 Jan
32°C22°C
27 Jan
34°C21°C
Wednesday
21 Jan
74%
33°C22°C
28 Jan
33°C21°C
Thursday
22 Jan
33°C21°C
29 Jan
33°C21°C
Friday
23 Jan
79%
32°C21°C
30 Jan
33°C22°C

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Frequently asked questions

Main airports in Phnom Penh
Getting from the airport to Phnom Penh
Best time to fly to Phnom Penh
Things to do in Phnom Penh
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