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$631+ Cheap flights from Phnom Penh (PNH) to Boston (BOS)

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 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
PNH — BOS
ago. 19 — ago. 261
mar. 8/19
mar. 8/26
1 adult, Economy
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Cheapflights Tip: The best prices from Phnom Penh Pochentong to Boston Logan Intl are usually found in August or June, 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 agosto 14, 2025.

Round-trip from

$1,127
(SmartFares)

One-way from

$631
(Kiwi.com)

Popular in

January

Cheapest in

August

Average price

$1,039
From Phnom Penh Pochentong to Boston Logan Intl
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One-way flight from Phnom Penh Pochentong to Boston Logan Intl
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Highest demand for flights based on searches. 15% potential increase in price ($275 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($71 potential savings vs. average RT price).
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Average for round-trip flights in August 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 agosto 14, 2025.

This SmartFares deal was found by Cheapflights users on 8/13. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/311:55 pmPNH - BOS
2 stops50h 05mMultiple Airlines
jue. 10/306:23 pmBOS - PNH
2 stops41h 32mMultiple Airlines
Deal found 8/13$1,127
This SmartFares deal was found by Cheapflights users on 8/14. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/312:35 pmPNH - BOS
2 stops37h 25mMultiple Airlines
mié. 10/224:30 pmBOS - PNH
2 stops31h 45mMultiple Airlines
Deal found 8/14$1,352
This Trip.com deal was found by Cheapflights users on 8/14. 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.
vie. 9/198:15 amPNH - BOS
2 stops41h 50mMultiple Airlines
sáb. 10/410:00 pmBOS - PNH
2 stops26h 25mMultiple Airlines
Deal found 8/14$1,365
This SmartFares deal was found by Cheapflights users on 8/14. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/512:35 pmPNH - BOS
2 stops37h 25mMultiple Airlines
mié. 10/226:43 pmBOS - PNH
2 stops29h 32mMultiple Airlines
Deal found 8/14$1,382
This Korean Air deal was found by Cheapflights users on 8/13. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/311:30 pmPNH - BOS
1 stop21h 40mKorean Air
mié. 10/2212:55 pmBOS - PNH
1 stop22h 15mKorean Air
Deal found 8/13$1,386
This Etihad Airways deal was found by Cheapflights users on 8/13. 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.
vie. 11/77:55 amPNH - BOS
1 stop42h 45mEtihad Airways
mar. 11/113:40 pmBOS - PNH
1 stop38h 50mEtihad Airways
Deal found 8/13$1,414
This SmartFares deal was found by Cheapflights users on 8/14. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/312:35 pmPNH - BOS
2 stops37h 25mMultiple Airlines
vie. 10/177:20 amBOS - PNH
2 stops40h 55mMultiple Airlines
Deal found 8/14$1,416
This Orbitz deal was found by Cheapflights users on 8/13. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/112:35 pmPNH - BOS
2 stops61h 25mMultiple Airlines
vie. 10/178:25 pmBOS - PNH
2 stops51h 50mMultiple Airlines
Deal found 8/13$1,440
This Korean Air deal was found by Cheapflights users on 8/13. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/111:30 pmPNH - BOS
1 stop21h 40mKorean Air
vie. 10/1712:55 pmBOS - PNH
1 stop22h 15mKorean Air
Deal found 8/13$1,458

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 agosto 14, 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

mié. 9/3

11:55 pm-3:00 pm

2 stops50h 05m

Boston Logan Intl

jue. 10/30

6:23 pm-10:55 pm

2 stops41h 32m

$1,127

Phnom PenhBoston

PNH - BOS

PNHBOS

Phnom Penh Pochentong

vie. 9/19

12:35 pm-3:00 pm

2 stops37h 25m

Boston Logan Intl

sáb. 10/4

9:20 am-11:15 am

2 stops38h 55m

$1,352

Phnom PenhBoston

PNH - BOS

PNHBOS

Phnom Penh Pochentong

dom. 9/7

12:35 pm-3:00 pm

2 stops37h 25m

Boston Logan Intl

mié. 10/22

6:43 pm-11:15 am

2 stops29h 32m

$1,352

Phnom PenhBoston

PNH - BOS

PNHBOS

Phnom Penh Pochentong

jue. 9/4

12:35 pm-3:00 pm

2 stops37h 25m

Boston Logan Intl

vie. 10/24

4:30 pm-11:25 am

2 stops31h 55m

$1,352

Phnom PenhBoston

PNH - BOS

PNHBOS

Phnom Penh Pochentong

mié. 9/3

12:35 pm-3:00 pm

2 stops37h 25m

Boston Logan Intl

mié. 10/22

6:43 pm-11:15 am

2 stops29h 32m

$1,352

Phnom PenhBoston

PNH - BOS

PNHBOS

Phnom Penh Pochentong

vie. 9/5

12:35 pm-3:00 pm

2 stops37h 25m

Boston Logan Intl

mié. 10/22

6:43 pm-11:15 am

2 stops29h 32m

$1,382

Phnom PenhBoston

PNH - BOS

PNHBOS

Phnom Penh Pochentong

vie. 9/19

11:30 pm-10:10 am

1 stop21h 40m

Boston Logan Intl

sáb. 10/4

12:55 pm-10:10 pm

1 stop22h 15m

$1,386

Phnom PenhBoston

PNH - BOS

PNHBOS

Phnom Penh Pochentong

mié. 9/3

11:30 pm-10:10 am

1 stop21h 40m

Boston Logan Intl

mié. 10/22

12:55 pm-10:10 pm

1 stop22h 15m

$1,386

Phnom PenhBoston

PNH - BOS

PNHBOS

Phnom Penh Pochentong

vie. 11/7

7:55 am-2:40 pm

1 stop42h 45m

Boston Logan Intl

mar. 11/11

3:40 pm-6:30 pm

1 stop38h 50m

$1,414

Phnom PenhBoston

PNH - BOS

PNHBOS

Phnom Penh Pochentong

mié. 9/3

12:35 pm-3:00 pm

2 stops37h 25m

Boston Logan Intl

vie. 10/31

7:00 am-11:25 am

2 stops41h 25m

$1,416

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 17 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 8, 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 agosto 14, 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
1,131 reviews

Crew

8.7

Comfort

8.3

Overall

8.4

Entertainment

8.2

Boarding

8.5

Food

8.1

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
1,131 reviews
Korean Air
8.4
Very good
1,131 reviews

Crew

8.7

Comfort

8.3

Overall

8.4

Entertainment

8.2

Boarding

8.5

Food

8.1

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
968 reviews
Korean Air
8.4
Very good
1,131 reviews

Crew

8.7

Comfort

8.3

Overall

8.4

Entertainment

8.2

Boarding

8.5

Food

8.1

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.

  • 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 $1,336 round trip. Cathay Pacific is currently priced 35% 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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Other flights to 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 agosto 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Cathay PacificCheapest$995Average$1,378FlexibilityNo cancel feeOn-time72%
Korean AirCheapest$1,336Average$1,555FlexibilityNo cancel feeOn-time81%

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