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$1,154+ Cheap flights from Phnom Penh (PNH) to Boston (BOS)

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.
PNH — BOS
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Phnom Penh Pochentong to Boston Logan Intl are usually found in June or August, booked 78 days in advance, depart on a Friday or Monday and return on a Monday

Cheap flight deals from Phnom Penh to Boston

Discover tips and strategies to find the most affordable flight options for your journey from Phnom Penh (PNH) to Boston (BOS). 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

$1,154
(lastminute.com)

Popular in

January

Cheapest in

June

Average price

$1,469
From Phnom Penh Pochentong to Boston Logan Intl
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($266 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($70 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
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Find flight deals from Phnom Penh to Boston

Cheapest flights from Phnom Penh to Boston
Explore the most affordable flight options available from Phnom Penh to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This lastminute.com deal was found by Cheapflights users on 9/11. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/218:30 amPNH - BOS
1 stop41h 25mEtihad Airways
Thu 10/304:40 pmBOS - PNH
1 stop38h 45mEtihad Airways
Deal found 9/11$1,154
This Etihad Airways deal was found by Cheapflights users on 9/11. 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.
Sat 10/188:30 amPNH - BOS
1 stop41h 25mEtihad Airways
Thu 10/304:40 pmBOS - PNH
1 stop38h 45mEtihad Airways
Deal found 9/11$1,207
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.
Mon 11/37:55 amPNH - BOS
1 stop42h 15mEtihad Airways
Tue 12/23:40 pmBOS - PNH
1 stop38h 45mEtihad Airways
Deal found 9/10$1,266
This Etihad Airways deal was found by Cheapflights users on 9/11. 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.
Sat 10/188:30 amPNH - BOS
1 stop41h 25mEtihad Airways
Sun 11/23:40 pmBOS - PNH
1 stop26h 50mEtihad Airways
Deal found 9/11$1,288
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.
Mon 12/227:55 amPNH - BOS
1 stop42h 15mEtihad Airways
Sat 1/33:40 pmBOS - PNH
1 stop26h 50mEtihad Airways
Deal found 9/9$1,346
This Etihad Airways deal was found by Cheapflights users on 9/11. 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.
Sat 10/188:30 amPNH - BOS
1 stop41h 25mEtihad Airways
Tue 10/284:40 pmBOS - PNH
1 stop26h 50mEtihad Airways
Deal found 9/11$1,349
This Etihad Airways deal was found by Cheapflights users on 9/11. 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.
Sat 10/188:30 amPNH - BOS
1 stop41h 25mEtihad Airways
Sat 11/14:40 pmBOS - PNH
1 stop26h 50mEtihad Airways
Deal found 9/11$1,415
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.
Sat 10/258:30 amPNH - BOS
1 stop41h 40mEtihad Airways
Sat 11/14:40 pmBOS - PNH
1 stop26h 50mEtihad Airways
Deal found 9/9$1,449

Cheapflights Fare Finder

 
Customize your flight search to find flights from Phnom Penh to Boston 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 Phnom Penh to Boston that are best for you.

Fly from

Phnom Penh

Fly to

Boston

Route

Depart

Return

Price

Phnom PenhBoston

PNH - BOS

PNHBOS

Phnom Penh Pochentong

Sat 10/18

8:30 am-2:55 pm

1 stop41h 25m

Boston Logan Intl

Thu 10/30

4:40 pm-6:25 pm

1 stop38h 45m

$1,207

Phnom PenhBoston

PNH - BOS

PNHBOS

Phnom Penh Pochentong

Mon 10/20

8:30 am-2:55 pm

1 stop41h 25m

Boston Logan Intl

Thu 10/30

4:40 pm-6:25 pm

1 stop38h 45m

$1,207

Phnom PenhBoston

PNH - BOS

PNHBOS

Phnom Penh Pochentong

Mon 11/3

7:55 am-2:10 pm

1 stop42h 15m

Boston Logan Intl

Tue 12/2

3:40 pm-6:25 pm

1 stop38h 45m

$1,266

Phnom PenhBoston

PNH - BOS

PNHBOS

Phnom Penh Pochentong

Tue 10/21

8:30 am-2:55 pm

1 stop41h 25m

Boston Logan Intl

Sun 11/2

3:40 pm-6:30 am

1 stop26h 50m

$1,288

Phnom PenhBoston

PNH - BOS

PNHBOS

Phnom Penh Pochentong

Mon 12/22

7:55 am-2:10 pm

1 stop42h 15m

Boston Logan Intl

Sat 1/3

3:40 pm-6:30 am

1 stop26h 50m

$1,346

Phnom PenhBoston

PNH - BOS

PNHBOS

Phnom Penh Pochentong

Mon 10/20

8:30 am-2:55 pm

1 stop41h 25m

Boston Logan Intl

Tue 10/28

4:40 pm-6:30 am

1 stop26h 50m

$1,349

Phnom PenhBoston

PNH - BOS

PNHBOS

Phnom Penh Pochentong

Sat 10/18

8:30 am-2:55 pm

1 stop41h 25m

Boston Logan Intl

Tue 10/28

4:40 pm-6:30 am

1 stop26h 50m

$1,349

Phnom PenhBoston

PNH - BOS

PNHBOS

Phnom Penh Pochentong

Thu 10/23

8:30 am-2:55 pm

1 stop41h 25m

Boston Logan Intl

Tue 10/28

4:40 pm-6:30 am

1 stop26h 50m

$1,349

Phnom PenhBoston

PNH - BOS

PNHBOS

Phnom Penh Pochentong

Sat 10/18

8:30 am-2:55 pm

1 stop41h 25m

Boston Logan Intl

Sat 11/1

4:40 pm-6:30 am

1 stop26h 50m

$1,415

Phnom PenhBoston

PNH - BOS

PNHBOS

Phnom Penh Pochentong

Sat 10/25

8:30 am-3:10 pm

1 stop41h 40m

Boston Logan Intl

Sat 11/1

4:40 pm-6:30 am

1 stop26h 50m

$1,449

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 11 results
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Best time to book a flight from Phnom Penh to Boston

Have a flexible travel schedule? Discover the best time to fly to Boston from Phnom Penh 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 Phnom Penh to Boston

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

Use this chart to determine the optimal time to book a round-trip flight from Phnom Penh to Boston. Price data was last updated on August 29, 2025.

The price you pay for your flight from Phnom Penh to Boston may vary depending on when you book. For the best chance of a lower fare, look to book 78 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 Phnom Penh to Boston?

Currently, January is the cheapest month in which you can book a flight from Phnom Penh to Boston (average of $218). Flying from Phnom Penh to Boston in July is currently the most expensive (average of $311). 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 Boston

Get insights into the airlines that provide service to Boston. 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 Boston. Reviews last updated September 11, 2025.
Get a feel of what it's like to fly with Korean Air and Cathay Pacific from Phnom Penh to Boston by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,139 reviews

Crew

8.7

Overall

8.4

Entertainment

8.2

Comfort

8.3

Food

8.1

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Korean Air
8.4
Very good
1,139 reviews
Korean Air
8.4
Very good
1,139 reviews

Crew

8.7

Overall

8.4

Entertainment

8.2

Comfort

8.3

Food

8.1

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Cathay Pacific
7.6
Good
993 reviews
Korean Air
8.4
Very good
1,139 reviews

Crew

8.7

Overall

8.4

Entertainment

8.2

Comfort

8.3

Food

8.1

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

Related info for your journey

Find useful and relevant information for your journey from Phnom Penh to Boston. 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 Phnom Penh to Boston?

    A quick flight from Phnom Penh to Boston can take about 41h 25m. Etihad Airways provides one of the quickest options available for as low as $1,207. There are 8696 mi between Phnom Penh and Boston.

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

    Flying on Cathay Pacific is currently your cheapest option to Boston, with prices starting at $995. Another option worth looking into is Korean Air, starting at $1,216 round trip. Cathay Pacific is currently priced 36% below the average price you’ll pay for this route.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Phnom Penh to Boston 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 Phnom Penh to Boston?

    Currently, January is the cheapest month in which you can book a flight from Phnom Penh to Boston (average of $218). Flying from Phnom Penh to Boston in July is currently the most expensive (average of $311). 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

Traveling to a place near Boston?

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Top 2 airlines flying from Phnom Penh to Boston

Discover the top 2 airlines that operate flights from Phnom Penh to Boston. 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
Cathay PacificCheapest$995Average$1,351FlexibilityNo cancel feeOn-time72%
Korean AirCheapest$1,216Average$1,572FlexibilityNo cancel feeOn-time81%

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