Cheap flights from Boston to Phnom Penh from $484

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Phnom Penh departing on 8/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Boston to Phnom Penh

Cheap round-trip flights

Korean Air Logo
12:55 pm - 10:10 pmBOS-PNH
22h 15m1 stop
Korean Air Logo
11:30 pm - 10:10 amPNH-BOS
21h 40m1 stop
$848Korean Air
Find Deal
Tue, Sep 2 - Wed, Sep 10
Korean Air Logo
9:59 am - 10:10 pmBOS-PNH
25h 11m2 stops
Korean Air Logo
11:30 pm - 10:10 amPNH-BOS
21h 40m1 stop
$853Korean Air
Find Deal
Tue, Sep 2 - Tue, Sep 9
Korean Air Logo
12:55 pm - 10:10 pmBOS-PNH
22h 15m1 stop
Korean Air Logo
11:30 pm - 10:10 amPNH-BOS
21h 40m1 stop
$866Korean Air
Find Deal
Tue, Aug 19 - Tue, Sep 2
Korean Air Logo
12:55 pm - 10:10 pmBOS-PNH
22h 15m1 stop
Korean Air Logo
11:30 pm - 10:10 amPNH-BOS
21h 40m1 stop
$895Korean Air
Find Deal
Fri, Aug 29 - Tue, Sep 9
Korean Air Logo
9:59 am - 10:10 pmBOS-PNH
25h 11m2 stops
Korean Air Logo
11:30 pm - 10:10 amPNH-BOS
21h 40m1 stop
$900Korean Air
Find Deal
Fri, Aug 29 - Tue, Sep 9
Korean Air Logo
12:55 pm - 10:10 pmBOS-PNH
22h 15m1 stop
Korean Air Logo
11:45 pm - 8:40 amPNH-BOS
20h 55m1 stop
$902Korean Air
Find Deal
Mon, Oct 6 - Tue, Nov 4
 Logo
12:55 pm - 10:10 pmBOS-PNH
22h 15m1 stop
 Logo
11:55 pm - 10:10 amPNH-BOS
21h 15m1 stop
Mon, Sep 1 - Mon, Sep 15
Qatar Airways Logo
10:00 pm - 4:15 pmBOS-PNH
31h 15m2 stops
Qatar Airways Logo
5:40 pm - 3:05 pmPNH-BOS
32h 25m2 stops
$1,009Qatar Airways
Find Deal
Sun, Sep 14 - Mon, Oct 6
Qatar Airways Logo
10:00 pm - 4:15 pmBOS-PNH
31h 15m2 stops
Qatar Airways Logo
5:10 pm - 1:55 pmPNH-BOS
32h 45m2 stops
$1,014Qatar Airways
Find Deal
Sun, Oct 5 - Wed, Nov 5
Qatar Airways Logo
10:00 pm - 4:15 pmBOS-PNH
31h 15m2 stops
Qatar Airways Logo
5:10 pm - 2:55 pmPNH-BOS
56h 45m2 stops
$1,022Qatar Airways
Find Deal
Wed, Oct 1 - Wed, Oct 29

Qatar Airways flights from Boston to Phnom Penh

Our best Qatar Airways deals on Boston to Phnom Penh flight tickets
Qatar Airways
Sep 14
BOS10:00 pmBoston Logan Intl
31h 15m
2 stops
PNH4:15 pmPhnom Penh Pochentong
Oct 6
PNH5:40 pmPhnom Penh Pochentong
32h 25m
2 stops
BOS3:05 pmBoston Logan Intl
Qatar Airways
Oct 5
BOS10:00 pmBoston Logan Intl
31h 15m
2 stops
PNH4:15 pmPhnom Penh Pochentong
Nov 5
PNH5:10 pmPhnom Penh Pochentong
32h 45m
2 stops
BOS1:55 pmBoston Logan Intl
Qatar Airways
Oct 1
BOS10:00 pmBoston Logan Intl
31h 15m
2 stops
PNH4:15 pmPhnom Penh Pochentong
Oct 29
PNH5:10 pmPhnom Penh Pochentong
56h 45m
2 stops
BOS2:55 pmBoston Logan Intl

Korean Air flights from Boston to Phnom Penh

Our best Korean Air deals on Boston to Phnom Penh flight tickets
Korean Air
Sep 2
BOS12:55 pmBoston Logan Intl
22h 15m
1 stop
PNH10:10 pmPhnom Penh Pochentong
Sep 10
PNH11:30 pmPhnom Penh Pochentong
21h 40m
1 stop
BOS10:10 amBoston Logan Intl
Korean Air
Sep 2
BOS9:59 amBoston Logan Intl
25h 11m
2 stops
PNH10:10 pmPhnom Penh Pochentong
Sep 9
PNH11:30 pmPhnom Penh Pochentong
21h 40m
1 stop
BOS10:10 amBoston Logan Intl
Korean Air
Aug 19
BOS12:55 pmBoston Logan Intl
22h 15m
1 stop
PNH10:10 pmPhnom Penh Pochentong
Sep 2
PNH11:30 pmPhnom Penh Pochentong
21h 40m
1 stop
BOS10:10 amBoston Logan Intl

momondo 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, momondo users made 832,500 searches. Data last updated July 30, 2025.
Use the filters below to find and compare flights from Boston to Phnom Penh that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonPhnom Penh

BOS - PNH

BOSPNH

Boston Logan Intl

Tue 9/2

12:55 pm-10:10 pm

1 stop22h 15m

Phnom Penh Pochentong

Wed 9/10

11:30 pm-10:10 am

1 stop21h 40m

$848

BostonPhnom Penh

BOS - PNH

BOSPNH

Boston Logan Intl

Tue 9/2

9:59 am-10:10 pm

2 stops25h 11m

Phnom Penh Pochentong

Tue 9/9

11:30 pm-10:10 am

1 stop21h 40m

$853

BostonPhnom Penh

BOS - PNH

BOSPNH

Boston Logan Intl

Tue 8/19

12:55 pm-10:10 pm

1 stop22h 15m

Phnom Penh Pochentong

Tue 9/2

11:30 pm-10:10 am

1 stop21h 40m

$866

BostonPhnom Penh

BOS - PNH

BOSPNH

Boston Logan Intl

Fri 8/29

12:55 pm-10:10 pm

1 stop22h 15m

Phnom Penh Pochentong

Tue 9/9

11:30 pm-10:10 am

1 stop21h 40m

$895

BostonPhnom Penh

BOS - PNH

BOSPNH

Boston Logan Intl

Fri 8/29

9:59 am-10:10 pm

2 stops25h 11m

Phnom Penh Pochentong

Tue 9/9

11:30 pm-10:10 am

1 stop21h 40m

$900

BostonPhnom Penh

BOS - PNH

BOSPNH

Boston Logan Intl

Mon 10/6

12:55 pm-10:10 pm

1 stop22h 15m

Phnom Penh Pochentong

Tue 11/4

11:45 pm-8:40 am

1 stop20h 55m

$902

BostonPhnom Penh

BOS - PNH

BOSPNH

Boston Logan Intl

Mon 9/1

12:55 pm-10:10 pm

1 stop22h 15m

Phnom Penh Pochentong

Mon 9/15

11:55 pm-10:10 am

1 stop21h 15m

$905

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

Sun 10/5

10:00 pm-4:15 pm

2 stops31h 15m

Phnom Penh Pochentong

Wed 11/5

5:10 pm-1:55 pm

2 stops32h 45m

$1,014

BostonPhnom Penh

BOS - PNH

BOSPNH

Boston Logan Intl

Wed 10/1

10:00 pm-4:15 pm

2 stops31h 15m

Phnom Penh Pochentong

Wed 10/29

5:10 pm-2:55 pm

2 stops56h 45m

$1,022

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Phnom Penh from

How to get the cheapest flight ticket from Boston to Phnom Penh

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Phnom Penh?

In general, September is the cheapest month to fly from Boston to Phnom Penh. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,038. If you aren’t able to travel to Phnom Penh during the month of September, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $1,045.

What is the cheapest day to depart on your flight to Phnom Penh?

The cheapest day to depart from Boston to Phnom Penh is on a Monday. Travelers who choose to depart for Phnom Penh on a Monday will often find tickets for as low as $1,250. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Boston to Phnom Penh for around $1,486.

What is the cheapest time of day to depart on your flight to Phnom Penh?

According to our data, the cheapest time of day to fly to Phnom Penh is in the evening. momondo users have found flights departing from Boston to Phnom Penh in the evening for as low as $1,215. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Phnom Penh are more costly in the afternoon, with an average ticket price of $1,607. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight to Phnom Penh?

You are more likely to see cheaper flights to Phnom Penh from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Phnom Penh for around $1,278 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Phnom Penh from Boston for as low as $1,082 on momondo.

How have Boston to Phnom Penh flight prices changed over time?

As of July 2025, prices for Boston to Phnom Penh flights are approximately 3% cheaper when compared to flights at the same time last year.

When to book flights from Boston to Phnom Penh

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to Phnom Penh according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Boston to Phnom Penh (BOS to PNH) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to Phnom Penh

Best Price Found

$484

Fastest flight time

21h 35m

Direct flights

None

Airports in Phnom Penh

1 airport
The best one-way flight to Phnom Penh from Boston in the past 72 hours is $484. The best round-trip flight deal from Boston to Phnom Penh found on momondo in the last 72 hours is $848.
The fastest flight from Boston to Phnom Penh takes 21h 35m
There are no direct flights from Boston to Phnom Penh. Popular non-direct route for this connection is Boston Logan Intl Airport - Phnom Penh Pochentong Airport.
There is 1 airport near Phnom Penh: Phnom Penh Pochentong (PNH)

  • How far is Boston Logan Intl to Phnom Penh Pochentong by plane?

    Phnom Penh Pochentong is 8696.3 mi away from Boston Logan Intl. In terms of flight time, this usually takes a little over 22h 15m.

  • When did momondo last update prices for flights from Boston Logan Intl Airport to Phnom Penh Pochentong Airport?

    Prices for flights from Boston Logan Intl Airport to Phnom Penh Pochentong Airport were last updated today.

  • How many operators does momondo search for flights from Boston Logan Intl Airport to Phnom Penh Pochentong Airport?

  • How old do you have to be to fly from Boston Logan Intl Airport to Phnom Penh Pochentong Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Boston Logan Intl Airport to Phnom Penh Pochentong Airport.

  • What documentation or ID do you need to fly to Phnom Penh Pochentong Airport?

    The travel and health documents required for your trip to Phnom Penh Pochentong Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Phnom Penh Pochentong Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Boston to Phnom Penh?


Best airlines flying from Boston to Phnom Penh

Compare and see reviews for airlines that fly from Boston to Phnom Penh with momondo
Airline
Rating
Free Cancellation
Price
Korean AirPriceFrom $797Free CancellationRating
8.4
1,121 reviews
Search Korean Air flights
Cathay PacificPriceFrom $850Free CancellationRating
7.6
949 reviews
Search Cathay Pacific flights
Qatar AirwaysPriceFrom $1,046Free CancellationRating
7.4
3,607 reviews
Search Qatar Airways flights
EmiratesPriceFrom $1,202Free CancellationRating
8.1
3,299 reviews
Search Emirates flights

Why use momondo?

Why should I use momondo to find a flight deal from Boston to Phnom Penh?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Phnom Penh from Boston.

Can I find flights from Boston to Phnom Penh with flexible booking policies on momondo?

Flights from Boston to Phnom Penh with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Boston to Phnom Penh?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Phnom Penh from Boston.

I’m not ready to book a flight from Boston to Phnom Penh right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Phnom Penh from Boston. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.


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