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Cheap flights from Boston to Phnom Penh from $494

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 4/9. 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

KAYAK's recommended round-trip deals from the most popular airlines that fly from Boston to Phnom Penh.
12:55 pm - 10:10 pmBOS-PNH
22h 15m1 stop
11:30 pm - 10:20 amPNH-BOS
21h 50m1 stop
$837Korean Air
Find Deal
Tue, Apr 29 - Tue, Jun 3
12:55 pm - 10:10 pmBOS-PNH
22h 15m1 stop
11:30 pm - 7:26 amPNH-BOS
42h 56m2 stops
$921Korean Air
Find Deal
Tue, Apr 29 - Tue, Jun 3
5:25 pm - 10:10 pmBOS-PNH
41h 45m2 stops
11:30 pm - 4:00 pmPNH-BOS
51h 30m2 stops
$1,004Delta
Find Deal
Fri, May 2 - Sun, May 18
1:40 am - 10:15 amBOS-PNH
21h 35m1 stop
6:30 pm - 11:00 pmPNH-BOS
39h 30m1 stop
$1,015Cathay Pacific
Find Deal
Sat, Apr 12 - Sun, May 4
1:40 am - 5:20 pmBOS-PNH
28h 40m1 stop
11:25 am - 11:00 pmPNH-BOS
22h 35m1 stop
$1,021Cathay Pacific
Find Deal
Thu, Aug 28 - Sat, Sep 20
10:00 pm - 4:15 pmBOS-PNH
31h 15m2 stops
5:40 pm - 3:05 pmPNH-BOS
32h 25m2 stops
$1,130Qatar Airways
Find Deal
Thu, Apr 24 - Wed, May 21
10:00 pm - 4:15 pmBOS-PNH
31h 15m2 stops
5:40 pm - 3:05 pmPNH-BOS
32h 25m2 stops
$1,182Qatar Airways
Find Deal
Sat, Sep 6 - Sat, Sep 20
5:25 pm - 10:10 pmBOS-PNH
41h 45m2 stops
11:30 pm - 10:20 amPNH-BOS
21h 50m1 stop
$1,208Delta
Find Deal
Fri, May 2 - Sun, May 18
11:05 pm - 4:35 pmBOS-PNH
30h 30m2 stops
8:50 pm - 2:10 pmPNH-BOS
28h 20m2 stops
$1,291Emirates
Find Deal
Sat, May 3 - Thu, Jun 26
11:05 pm - 8:35 amBOS-PNH
46h 30m2 stops
8:50 pm - 2:10 pmPNH-BOS
28h 20m2 stops
$1,345Emirates
Find Deal
Mon, Jun 2 - Fri, Jun 13

Korean Air flights from Boston to Phnom Penh

Our best Korean Air deals on Boston to Phnom Penh flight tickets
Korean Air
Apr 29
BOS12:55 pmBoston Logan Intl
22h 15m
1 stop
PNH10:10 pmPhnom Penh Pochentong
Jun 3
PNH11:30 pmPhnom Penh Pochentong
21h 50m
1 stop
BOS10:20 amBoston Logan Intl
Korean Air
Apr 29
BOS12:55 pmBoston Logan Intl
22h 15m
1 stop
PNH10:10 pmPhnom Penh Pochentong
Jun 3
PNH11:30 pmPhnom Penh Pochentong
42h 56m
2 stops
BOS7:26 amBoston Logan Intl
Korean Air
Apr 24
BOS12:55 pmBoston Logan Intl
22h 15m
1 stop
PNH10:10 pmPhnom Penh Pochentong
May 21
PNH11:30 pmPhnom Penh Pochentong
27h 17m
2 stops
BOS3:47 pmBoston Logan Intl

Delta flights from Boston to Phnom Penh

Our best Delta deals on Boston to Phnom Penh flight tickets
Delta
May 2
BOS5:25 pmBoston Logan Intl
41h 45m
2 stops
PNH10:10 pmPhnom Penh Pochentong
May 18
PNH11:30 pmPhnom Penh Pochentong
51h 30m
2 stops
BOS4:00 pmBoston Logan Intl
Delta
May 2
BOS5:25 pmBoston Logan Intl
41h 45m
2 stops
PNH10:10 pmPhnom Penh Pochentong
May 18
PNH11:30 pmPhnom Penh Pochentong
21h 50m
1 stop
BOS10:20 amBoston Logan Intl

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, January 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 $1,078. If you aren’t able to travel to Phnom Penh during the month of January, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $1,079.

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 11 weeks ahead of your departure date. In general, you can expect to find flights to Phnom Penh for around $1,333 when searching 11 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 $1,107 on momondo.

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

As of March 2025, prices for Boston to Phnom Penh flights are approximately 37% 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

$494

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 $494. The best round-trip flight deal from Boston to Phnom Penh found on momondo in the last 72 hours is $837.
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 21h 35m.

  • 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
Cathay PacificPriceFrom $848Free CancellationRating
7.5
837 reviews
Search Cathay Pacific flights
Korean AirPriceFrom $908Free CancellationRating
8.4
1,050 reviews
Search Korean Air flights
Qatar AirwaysPriceFrom $1,046Free CancellationRating
7.4
3,538 reviews
Search Qatar Airways flights
EmiratesPriceFrom $1,202Free CancellationRating
8.0
3,190 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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