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Phnom Penh

Cheap flights from Boston (BOS) to Phnom Penh (PNH)

BOS — PNH
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Find flight deals from Boston to Phnom Penh

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Phnom Penh (PNH). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

June

Cheapest in

November

Average price

$1,070
Provider with most accurate pricing for Boston Logan Intl-Phnom Penh Pochentong flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-Phnom Penh Pochentong flights.
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Highest demand for flights based on searches. 23% potential increase in price ($368 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($50 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Compare providers for flights from Boston to Phnom Penh

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to Phnom Penh in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
OvagoPrice Accuracy2 starsTrust Score*3 stars
oojoPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
ScholarTripPrice Accuracy3 starsTrust Score*3 stars
business-class.comPrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Boston-Phnom Penh flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-Phnom Penh flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boston-Phnom Penh flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-Phnom Penh flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boston-Phnom Penh flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Boston to Phnom Penh

Have a flexible travel schedule? Discover the best time to fly to Phnom Penh from Boston with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Boston to Phnom Penh

How far ahead should I book a flight from Boston to Phnom Penh?

Use this chart to determine the optimal time to book a round-trip flight from Boston to Phnom Penh. Price data was last updated on January 23, 2026.

The price you pay for your flight from Boston to Phnom Penh may vary depending on when you book. For the best chance of a lower fare, look to book 90 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Boston to Phnom Penh?

Currently, September is the cheapest month in which you can book a flight from Boston to Phnom Penh (average of $494). Flying from Boston to Phnom Penh in June is currently the most expensive (average of $1,127). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Phnom Penh

Get insights into the airlines that provide service to Phnom Penh. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Phnom Penh. Reviews last updated January 29, 2026.
See what other customers who have flown with Korean Air, Emirates, and Cathay Pacific from Boston to Phnom Penh have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,188 reviews

Comfort

8.3

Crew

8.7

Boarding

8.5

Food

8.1

Entertainment

8.2

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
Korean Air
8.4
Very good
1,188 reviews
Korean Air
8.4
Very good
1,188 reviews

Comfort

8.3

Crew

8.7

Boarding

8.5

Food

8.1

Entertainment

8.2

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
Emirates
8.1
Very good
3,490 reviews
Korean Air
8.4
Very good
1,188 reviews

Comfort

8.3

Crew

8.7

Boarding

8.5

Food

8.1

Entertainment

8.2

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
Cathay Pacific
7.6
Good
1,148 reviews
Korean Air
8.4
Very good
1,188 reviews

Comfort

8.3

Crew

8.7

Boarding

8.5

Food

8.1

Entertainment

8.2

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
Qatar Airways
7.4
Good
3,728 reviews
Korean Air
8.4
Very good
1,188 reviews

Comfort

8.3

Crew

8.7

Boarding

8.5

Food

8.1

Entertainment

8.2

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.

Related info for your journey

Find useful and relevant information for your journey from Boston to Phnom Penh. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Boston to Phnom Penh round-trip?

    Flying on Korean Air is currently your cheapest option to Phnom Penh, with prices starting at $765. Additional round-trip tickets that might be worth considering are offered by Cathay Pacific and Qatar Airways, with the lowest prices starting at $921 and $1,132, respectively. Korean Air is priced at 35% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Boston to Phnom Penh one-way?

    The cheapest airline one-way is Korean Air, with whom users have recently found tickets for as low as $309. However, be on the lookout for offers from Cathay Pacific and Qatar Airways, as they are both options that can get you from Boston to Phnom Penh for a low price.

  • Where are the most common layover locations when flying from Boston to Phnom Penh?

    Boston to Phnom Penh flights have a layover in Seoul most of the time.

  • What are some popular things to do or see while on a layover in Seoul?

    If you're on a layover in Seoul and looking for things to do, consider visiting Dongdaemun Market, Lotte World, or Bukchon Hanok Village. Dongdaemun Market, Lotte World, and Bukchon Hanok Village can be visited by traveling about 31.6 mi, 35.7 mi, and 30.6 mi respectively from Incheon Intl. Those looking to explore during their layover in Seoul can rent a car from Incheon Intl for about $48 per day.

  • Where are the least popular layover locations for Boston to Phnom Penh flights?

    Boston to Phnom Penh flights have a layover in Hong Kong least often.

  • Can I find deals for flights from Boston to Phnom Penh that include hotel bookings?

    Yes. In addition to deals on Boston to Phnom Penh flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boston to Phnom Penh?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Phnom Penh.

  • Can I find deals for business class flights from Boston to Phnom Penh?

    Yes. Cheapflights offers flight deals from Boston to Phnom Penh by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Boston to Phnom Penh?

    Currently, September is the cheapest month in which you can book a flight from Boston to Phnom Penh (average of $494). Flying from Boston to Phnom Penh in June is currently the most expensive (average of $1,127). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Alternative routes for Boston to Phnom Penh

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Boston to Phnom Penh

Discover the top 4 airlines that operate flights from Boston to Phnom Penh. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
Korean AirCheapest$765Average$1,005FlexibilityNo cancel feeOn-time81%
Cathay PacificCheapest$921Average$1,420FlexibilityNo cancel feeOn-time72%
Qatar AirwaysCheapest$1,132Average$1,346FlexibilityNo cancel feeOn-time68%
EmiratesCheapest$1,240Average$1,427FlexibilityNo cancel feeOn-time75%

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