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Phnom Penh

$484+ Cheap flights from Boston (BOS) to Phnom Penh (PNH)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/27. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — PNH
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheapflights Tip: The best prices from Boston Logan Intl to Phnom Penh Pochentong are usually found in September or October, booked 21 days in advance, depart on a Monday or Tuesday and return on a Friday

Cheap 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 July 29, 2025.

Round-trip from

$848
(CrystalTravel)

One-way from

$484
(oojo)

Popular in

June

Cheapest in

September

Average price

$1,585
From Boston Logan Intl to Phnom Penh Pochentong
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One-way flight from Boston Logan Intl to Phnom Penh Pochentong
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Highest demand for flights based on searches. 18% potential increase in price ($293 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($41 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Boston to Phnom Penh

Cheapest flights from Boston to Phnom Penh
Explore the most affordable flight options available from Boston to Phnom Penh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

This CrystalTravel deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1912:55 pmBOS - PNH
1 stop22h 15mKorean Air
Tue 9/2311:30 pmPNH - BOS
1 stop21h 40mKorean Air
Deal found 7/28$848
This Trip.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/112:55 pmBOS - PNH
1 stop22h 15mMultiple Airlines
Mon 9/1511:55 pmPNH - BOS
1 stop21h 15mMultiple Airlines
Deal found 7/29$905
This oojo deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1410:00 pmBOS - PNH
2 stops31h 15mQatar Airways
Mon 10/65:40 pmPNH - BOS
2 stops32h 25mQatar Airways
Deal found 7/27$1,009

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston to Phnom Penh that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 29, 2025.
Use the filters below to find and compare flights from Boston to Phnom Penh that are best for you.

Fly from

Boston

Fly to

Phnom Penh

Route

Depart

Return

Price

BostonPhnom Penh

BOS - PNH

BOSPNH

Boston Logan Intl

Tue 8/19

12:55 pm-10:10 pm

1 stop22h 15m

Phnom Penh Pochentong

Tue 9/23

11:30 pm-10:10 am

1 stop21h 40m

$848

BostonPhnom Penh

BOS - PNH

BOSPNH

Boston Logan Intl

Mon 10/6

12:55 pm-10:55 pm

1 stop23h 00m

Phnom Penh Pochentong

Thu 11/6

11:55 pm-8:40 am

1 stop20h 45m

$895

BostonPhnom Penh

BOS - PNH

BOSPNH

Boston Logan Intl

Sun 9/14

10:00 pm-4:15 pm

2 stops31h 15m

Phnom Penh Pochentong

Mon 10/6

5:40 pm-3:05 pm

2 stops32h 25m

$1,009

BostonPhnom Penh

BOS - PNH

BOSPNH

Boston Logan Intl

Wed 8/27

12:55 pm-10:10 pm

1 stop22h 15m

$484

BostonPhnom Penh

BOS - PNH

BOSPNH

Boston Logan Intl

Wed 8/27

3:37 pm-10:15 am

3 stops55h 38m

$503

BostonPhnom Penh

BOS - PNH

BOSPNH

Boston Logan Intl

Sun 8/31

1:40 am-10:15 am

1 stop21h 35m

$567

BostonPhnom Penh

BOS - PNH

BOSPNH

Boston Logan Intl

Sun 8/31

11:15 am-8:40 am

2 stops34h 25m

$1,215

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

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 July 25, 2025.

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 21 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, March is the cheapest month in which you can book a flight from Boston to Phnom Penh (average of $988). Flying from Boston to Phnom Penh in June is currently the most expensive (average of $1,549). 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.

What is the cheapest time of day to fly from BOS to PNH?

Find hourly flight availability from Boston to Phnom Penh. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 29, 2025.

When flying from Boston to Phnom Penh, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 25% versus a flight in the afternoon.

What’s the top layover airport for flights from Boston to Phnom Penh?

Share of 1-stop round-trip flights from Boston to Phnom Penh chosen by Cheapflights users in the past 12 months, using the same layover each way.

Hong Kong (HKG) – chosen by Cheapflights users on 58% of 1-stop itineraries from Boston to Phnom Penh on Cheapflights.

What’s the cheapest layover airport for flights from Boston to Phnom Penh?

Average round-trip fare for 1-stop flights from Boston to Phnom Penh, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Dubai (DXB) is the most affordable 1-stop option, with an average round-trip price of $1,172.

What’s the fastest layover option from Boston to Phnom Penh?

Shortest average travel time for 1-stop one-way flights from Boston to Phnom Penh, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Incheon (ICN) have the shortest average one-way travel time for 1-stop routes: 7h 11m.

Which airport typically offers the quickest layover for flights from Boston to Phnom Penh?

Average layover duration for 1-stop one-way flights from Boston to Phnom Penh, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Incheon (ICN) offer the fastest connection on this route, with an average layover time of 2h 02m.

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 July 29, 2025.
See what other customers who have flown with Korean Air, Singapore Airlines, 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
1,121 reviews

Comfort

8.2

Crew

8.7

Boarding

8.5

Entertainment

8.2

Food

8.1

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
1,121 reviews
Korean Air
8.4
Very good
1,121 reviews

Comfort

8.2

Crew

8.7

Boarding

8.5

Entertainment

8.2

Food

8.1

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.
Singapore Airlines
8.1
Very good
1,338 reviews
Korean Air
8.4
Very good
1,121 reviews

Comfort

8.2

Crew

8.7

Boarding

8.5

Entertainment

8.2

Food

8.1

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
948 reviews
Korean Air
8.4
Very good
1,121 reviews

Comfort

8.2

Crew

8.7

Boarding

8.5

Entertainment

8.2

Food

8.1

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
3,609 reviews
Korean Air
8.4
Very good
1,121 reviews

Comfort

8.2

Crew

8.7

Boarding

8.5

Entertainment

8.2

Food

8.1

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 $848. Another option worth looking into is Qatar Airways, starting at $1,009 round trip. Korean Air is priced at 33% 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 $484. However, be on the lookout for offers from Cathay Pacific and Singapore Airlines, 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, Namdaemun Market, or Bukchon Hanok Village. Dongdaemun Market, Namdaemun Market, and Bukchon Hanok Village can be visited by traveling about 31.6 mi, 29.8 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 $76 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, March is the cheapest month in which you can book a flight from Boston to Phnom Penh (average of $988). Flying from Boston to Phnom Penh in June is currently the most expensive (average of $1,549). 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.

See more FAQs

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Complete your trip

Complete your trip to Phnom Penh by adding a car rental and/or hotel reservation to your travel itinerary.
Phnom Penh car rentals
Phnom Penh Pochentong Airport car rentals

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 July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Korean AirCheapest$797Average$1,164FlexibilityNo cancel feeOn-time81%
Cathay PacificCheapest$850Average$1,176FlexibilityNo cancel feeOn-time72%
Qatar AirwaysCheapest$1,046Average$1,434FlexibilityNo cancel feeOn-time68%
EmiratesCheapest$1,202Average$1,462FlexibilityNo cancel feeOn-time75%

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