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Cheap flights from Boston to Phnom Penh from $880

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 12/24. 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

Etihad Airways Logo
4:30 pm - 6:55 amBOS-PNH
27h 25m1 stop
Etihad Airways Logo
7:55 am - 2:10 pmPNH-BOS
42h 15m1 stop
$1,154Etihad Airways
Find Deal
Sat, Oct 4 - Fri, Nov 7
Etihad Airways Logo
3:40 pm - 6:30 amBOS-PNH
26h 50m1 stop
Etihad Airways Logo
7:50 pm - 2:10 pmPNH-BOS
30h 20m1 stop
$1,163Etihad Airways
Find Deal
Sat, Jan 31 - Sat, Feb 21
Etihad Airways Logo
4:30 pm - 6:55 amBOS-PNH
27h 25m1 stop
Etihad Airways Logo
7:50 pm - 2:10 pmPNH-BOS
30h 20m1 stop
$1,179Etihad Airways
Find Deal
Sun, Oct 5 - Tue, Nov 4
Etihad Airways Logo
4:30 pm - 6:55 amBOS-PNH
27h 25m1 stop
Etihad Airways Logo
7:55 am - 2:10 pmPNH-BOS
42h 15m1 stop
$1,180Etihad Airways
Find Deal
Sat, Oct 4 - Fri, Feb 6
Etihad Airways Logo
4:30 pm - 6:55 amBOS-PNH
27h 25m1 stop
Etihad Airways Logo
7:55 am - 3:10 pmPNH-BOS
42h 15m1 stop
$1,181Etihad Airways
Find Deal
Sat, Oct 18 - Sat, Nov 1
Etihad Airways Logo
4:30 pm - 6:55 amBOS-PNH
27h 25m1 stop
Etihad Airways Logo
7:55 am - 2:10 pmPNH-BOS
42h 15m1 stop
$1,204Etihad Airways
Find Deal
Tue, Oct 7 - Mon, Feb 9
Etihad Airways Logo
4:30 pm - 6:55 amBOS-PNH
27h 25m1 stop
Etihad Airways Logo
7:55 am - 3:10 pmPNH-BOS
42h 15m1 stop
$1,226Etihad Airways
Find Deal
Tue, Oct 14 - Tue, Oct 28
Etihad Airways Logo
5:05 pm - 6:55 amBOS-PNH
50h 50m2 stops
Etihad Airways Logo
7:50 pm - 2:10 pmPNH-BOS
30h 20m1 stop
$1,228Etihad Airways
Find Deal
Wed, Oct 8 - Thu, Feb 5
Etihad Airways Logo
4:30 pm - 6:55 amBOS-PNH
27h 25m1 stop
Etihad Airways Logo
7:50 pm - 2:10 pmPNH-BOS
30h 20m1 stop
$1,249Etihad Airways
Find Deal
Tue, Oct 7 - Thu, Nov 6
Etihad Airways Logo
4:30 pm - 6:55 amBOS-PNH
27h 25m1 stop
Etihad Airways Logo
7:55 am - 2:10 pmPNH-BOS
42h 15m1 stop
$1,266Etihad Airways
Find Deal
Tue, Oct 7 - Tue, Nov 4

Etihad Airways flights from Boston to Phnom Penh

Our best Etihad Airways deals on Boston to Phnom Penh flight tickets
Etihad Airways
Oct 4
BOS4:30 pmBoston Logan Intl
27h 25m
1 stop
PNH6:55 amPhnom Penh Pochentong
Nov 7
PNH7:55 amPhnom Penh Pochentong
42h 15m
1 stop
BOS2:10 pmBoston Logan Intl
$1,154
Find similar
Etihad Airways
Jan 31
BOS3:40 pmBoston Logan Intl
26h 50m
1 stop
PNH6:30 amPhnom Penh Pochentong
Feb 21
PNH7:50 pmPhnom Penh Pochentong
30h 20m
1 stop
BOS2:10 pmBoston Logan Intl
$1,163
Find similar
Etihad Airways
Oct 5
BOS4:30 pmBoston Logan Intl
27h 25m
1 stop
PNH6:55 amPhnom Penh Pochentong
Nov 4
PNH7:50 pmPhnom Penh Pochentong
30h 20m
1 stop
BOS2:10 pmBoston Logan Intl
$1,179
Find similar

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 September 15, 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

Sat 10/4

4:30 pm-6:55 am

1 stop27h 25m

Phnom Penh Pochentong

Fri 11/7

7:55 am-2:10 pm

1 stop42h 15m

$1,154

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

$1,163

BostonPhnom Penh

BOS - PNH

BOSPNH

Boston Logan Intl

Sun 10/5

4:30 pm-6:55 am

1 stop27h 25m

Phnom Penh Pochentong

Tue 11/4

7:50 pm-2:10 pm

1 stop30h 20m

$1,179

BostonPhnom Penh

BOS - PNH

BOSPNH

Boston Logan Intl

Sat 10/4

4:30 pm-6:55 am

1 stop27h 25m

Phnom Penh Pochentong

Fri 2/6

7:55 am-2:10 pm

1 stop42h 15m

$1,180

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

$1,181

BostonPhnom Penh

BOS - PNH

BOSPNH

Boston Logan Intl

Tue 10/7

4:30 pm-6:55 am

1 stop27h 25m

Phnom Penh Pochentong

Mon 2/9

7:55 am-2:10 pm

1 stop42h 15m

$1,204

BostonPhnom Penh

BOS - PNH

BOSPNH

Boston Logan Intl

Tue 10/14

4:30 pm-6:55 am

1 stop27h 25m

Phnom Penh Pochentong

Tue 10/28

7:55 am-3:10 pm

1 stop42h 15m

$1,226

BostonPhnom Penh

BOS - PNH

BOSPNH

Boston Logan Intl

Wed 10/8

5:05 pm-6:55 am

2 stops50h 50m

Phnom Penh Pochentong

Thu 2/5

7:50 pm-2:10 pm

1 stop30h 20m

$1,228

BostonPhnom Penh

BOS - PNH

BOSPNH

Boston Logan Intl

Tue 10/7

4:30 pm-6:55 am

1 stop27h 25m

Phnom Penh Pochentong

Thu 11/6

7:50 pm-2:10 pm

1 stop30h 20m

$1,249

BostonPhnom Penh

BOS - PNH

BOSPNH

Boston Logan Intl

Tue 10/7

4:30 pm-6:55 am

1 stop27h 25m

Phnom Penh Pochentong

Tue 11/4

7:55 am-2:10 pm

1 stop42h 15m

$1,266

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 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 $975. 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 $988.

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 $1,256 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 $1,069 on momondo.

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

As of September 2025, prices for Boston to Phnom Penh flights are approximately 42% 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

Direct flights

None
There are no direct flights from Boston to Phnom Penh. There are no popular flight routes from Boston to Phnom Penh.
Search flight deals

  • 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 25h 10m.

  • 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 $793Free CancellationRating
8.4
1,139 reviews
Search Korean Air flights
Cathay PacificPriceFrom $859Free CancellationRating
7.6
993 reviews
Search Cathay Pacific flights
Qatar AirwaysPriceFrom $1,046Free CancellationRating
7.4
3,624 reviews
Search Qatar Airways flights
EmiratesPriceFrom $1,208Free CancellationRating
8.1
3,334 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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