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Phnom Penh

$1,130+ Cheap flights from Boston (BOS) to Phnom Penh (PNH)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/21. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — PNH
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
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 38 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 September 11, 2025.

Round-trip from

$1,143
(oojo)

Popular in

June

Cheapest in

September

Average price

$1,002
From Boston Logan Intl to Phnom Penh Pochentong
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($304 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($42 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 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 September 11, 2025.

This Gotogate deal was found by Cheapflights users on 9/9. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/214:30 pmBOS - PNH
1 stop27h 25mEtihad Airways
Tue 10/287:55 amPNH - BOS
1 stop42h 15mEtihad Airways
Deal found 9/9$1,130
This Gotogate deal was found by Cheapflights users on 9/9. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/44:30 pmBOS - PNH
1 stop27h 25mEtihad Airways
Sat 10/118:30 amPNH - BOS
1 stop41h 25mEtihad Airways
Deal found 9/9$1,135
This oojo deal was found by Cheapflights users on 9/9. 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.
Wed 11/123:40 pmBOS - PNH
1 stop26h 50mEtihad Airways
Fri 12/57:55 amPNH - BOS
1 stop42h 15mEtihad Airways
Deal found 9/9$1,141
This oojo deal was found by Cheapflights users on 9/9. 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.
Thu 10/94:30 pmBOS - PNH
1 stop27h 25mEtihad Airways
Thu 10/168:30 amPNH - BOS
1 stop41h 25mEtihad Airways
Deal found 9/9$1,143
This Etihad Airways deal was found by Cheapflights users on 9/8. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/144:30 pmBOS - PNH
1 stop27h 25mEtihad Airways
Tue 10/218:30 amPNH - BOS
1 stop41h 25mEtihad Airways
Deal found 9/8$1,168
This Kiwi.com deal was found by Cheapflights users on 9/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/164:30 pmBOS - PNH
1 stop27h 25mEtihad Airways
Thu 10/238:30 amPNH - BOS
1 stop41h 25mEtihad Airways
Deal found 9/8$1,207
This Etihad Airways deal was found by Cheapflights users on 9/9. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/163:40 pmBOS - PNH
1 stop38h 45mEtihad Airways
Tue 1/207:50 pmPNH - BOS
1 stop30h 20mEtihad Airways
Deal found 9/9$1,297
This Gotogate deal was found by Cheapflights users on 9/10. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/163:40 pmBOS - PNH
1 stop38h 45mEtihad Airways
Fri 1/237:55 amPNH - BOS
1 stop42h 15mEtihad Airways
Deal found 9/10$1,350
This oojo deal was found by Cheapflights users on 9/10. 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.
Tue 12/93:40 pmBOS - PNH
1 stop38h 45mEtihad Airways
Mon 12/227:55 amPNH - BOS
1 stop42h 15mEtihad Airways
Deal found 9/10$1,360

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 September 11, 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

Sat 10/18

4:30 pm-6:55 am

1 stop27h 25m

Phnom Penh Pochentong

Tue 10/28

7:55 am-3:10 pm

1 stop42h 15m

$1,166

BostonPhnom Penh

BOS - PNH

BOSPNH

Boston Logan Intl

Tue 10/21

4:30 pm-6:55 am

1 stop27h 25m

Phnom Penh Pochentong

Sat 11/1

7:55 am-3:10 pm

1 stop42h 15m

$1,168

BostonPhnom Penh

BOS - PNH

BOSPNH

Boston Logan Intl

Sat 10/18

4:30 pm-6:55 am

1 stop27h 25m

Phnom Penh Pochentong

Sat 11/1

7:55 am-3:10 pm

1 stop42h 15m

$1,168

BostonPhnom Penh

BOS - PNH

BOSPNH

Boston Logan Intl

Sat 2/7

3:40 pm-6:30 am

1 stop26h 50m

Phnom Penh Pochentong

Thu 3/26

7:50 pm-3:10 pm

1 stop30h 20m

$1,170

BostonPhnom Penh

BOS - PNH

BOSPNH

Boston Logan Intl

Tue 2/3

3:40 pm-6:25 pm

1 stop38h 45m

Phnom Penh Pochentong

Fri 3/27

7:55 am-3:10 pm

1 stop42h 15m

$1,170

BostonPhnom Penh

BOS - PNH

BOSPNH

Boston Logan Intl

Sat 2/7

3:40 pm-6:30 am

1 stop26h 50m

Phnom Penh Pochentong

Fri 3/27

7:55 am-3:10 pm

1 stop42h 15m

$1,170

BostonPhnom Penh

BOS - PNH

BOSPNH

Boston Logan Intl

Sat 1/31

3:40 pm-6:30 am

1 stop26h 50m

Phnom Penh Pochentong

Sat 2/21

7:50 pm-2:10 pm

1 stop30h 20m

$1,170

BostonPhnom Penh

BOS - PNH

BOSPNH

Boston Logan Intl

Sun 2/1

3:40 pm-6:30 am

1 stop26h 50m

Phnom Penh Pochentong

Thu 3/26

7:50 pm-3:10 pm

1 stop30h 20m

$1,170

BostonPhnom Penh

BOS - PNH

BOSPNH

Boston Logan Intl

Tue 10/21

4:30 pm-6:55 am

1 stop27h 25m

Phnom Penh Pochentong

Thu 10/30

7:55 am-3:10 pm

1 stop42h 15m

$1,293

BostonPhnom Penh

BOS - PNH

BOSPNH

Boston Logan Intl

Thu 10/23

4:30 pm-6:55 am

1 stop27h 25m

Phnom Penh Pochentong

Thu 10/30

7:55 am-3:10 pm

1 stop42h 15m

$1,293

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 13 results
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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 August 29, 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 38 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 $983). Flying from Boston to Phnom Penh in June is currently the most expensive (average of $1,553). 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 September 11, 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.

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 September 11, 2025.
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
1,139 reviews

Boarding

8.5

Crew

8.7

Entertainment

8.2

Overall

8.4

Comfort

8.3

Food

8.1

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
1,139 reviews
Korean Air
8.4
Very good
1,139 reviews

Boarding

8.5

Crew

8.7

Entertainment

8.2

Overall

8.4

Comfort

8.3

Food

8.1

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
3,334 reviews
Korean Air
8.4
Very good
1,139 reviews

Boarding

8.5

Crew

8.7

Entertainment

8.2

Overall

8.4

Comfort

8.3

Food

8.1

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
993 reviews
Korean Air
8.4
Very good
1,139 reviews

Boarding

8.5

Crew

8.7

Entertainment

8.2

Overall

8.4

Comfort

8.3

Food

8.1

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
3,624 reviews
Korean Air
8.4
Very good
1,139 reviews

Boarding

8.5

Crew

8.7

Entertainment

8.2

Overall

8.4

Comfort

8.3

Food

8.1

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.

  • How long is the flight from Boston to Phnom Penh?

    For as low as $1,166, Etihad Airways can have you in Phnom Penh from Boston in 27h 25m. The distance from Boston to Phnom Penh is about 8696 mi.

  • 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 $793. Additional round-trip tickets that might be worth considering are offered by Cathay Pacific and Qatar Airways, with the lowest prices starting at $859 and $1,046, respectively. Korean Air is priced at 37% lower than the current average price of a flight leaving 3 months from now.

  • 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 $64 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 $983). Flying from Boston to Phnom Penh in June is currently the most expensive (average of $1,553). 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

Browse thousands of different options on Cheapflights for your next trip

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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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Korean AirCheapest$793Average$1,132FlexibilityNo cancel feeOn-time81%
Cathay PacificCheapest$859Average$1,206FlexibilityNo cancel feeOn-time72%
Qatar AirwaysCheapest$1,046Average$1,435FlexibilityNo cancel feeOn-time68%
EmiratesCheapest$1,208Average$1,465FlexibilityNo cancel feeOn-time75%

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