KTI - BOS

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1 adult, Economy, 0 bags

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Everything you should know

Nonstop flights
Not available
There are currently no direct flights between Phnom Penh and Boston. You'll need at least 1 connection.
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Top layover airports
Cheapest • Avg $1,486 (round-trip)
Shortest trip • 20h 53m (one-way)
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When to travel
Cheapest • 39% price drop
Most popular
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Booking Insights
Flight Deals

Cheap Flights from Phnom Penh to Boston (KTI-BOS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Phnom Penh to Boston that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Phnom Penh to Boston

Multiple Airlines Logo
KTI
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BOS
8710 mimulti-stop
Multiple Airlines Logo
BOS
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KTI
8710 mimulti-stop
Multiple Airlines
Booking Insights

KAYAK's insights & trends for Phnom Penh to Boston flights

Get data-powered insights and trends into flights from Phnom Penh to Boston to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Phnom Penh to Boston?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Phnom Penh to Boston, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Phnom Penh to Boston is September, where tickets cost $985 (return) on average. On the other hand, the most expensive months are July and May, where the average cost of round-trip tickets is $2,419 and $2,177 respectively.

Good to know

Low seasonJuly
Best time to beat the crowds but there is an average 50% increase in price.
Most popular time to fly with an average 4% increase in price.

When to book flights from Phnom Penh to Boston

Are your dates flexible? Find out the best times to travel from Phnom Penh to Boston based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Phnom Penh to Boston

  • Do I need a passport to fly between Phnom Penh and Boston?

    Yes

  • Which aircraft models fly most regularly from Phnom Penh to Boston?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Phnom Penh to Boston?

    SkyTeam, and oneworld are the airline alliances operating flights between Phnom Penh and Boston, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Phnom Penh to Boston, Korean Air or Cathay Pacific?

    The two airlines most popular with KAYAK users for flights from Phnom Penh to Boston are Korean Air and Cathay Pacific. With an average price for the route of $1,728 and an overall rating of 8.4, Korean Air is the most popular choice. Cathay Pacific is also a great choice for the route, with an average price of $1,638 and an overall rating of 7.6.

  • How does KAYAK find such low prices on flights from Phnom Penh to Boston?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Phnom Penh to Boston.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Phnom Penh to Boston?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boston from Phnom Penh is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Phnom Penh to Boston?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Boston with an airline and back to Phnom Penh with another airline. Booking your flights between Phnom Penh and BOS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Phnom Penh to Boston?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Boston from Phnom Penh up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Phnom Penh to Boston

 
See real verified KAYAK customer reviews for airlines flying from Phnom Penh to Boston. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Phnom Penh to Boston? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.4
Korean AirOverall score based on 1221 reviews
8.7Crew
8.2Entertainment
8.3Comfort
8.5Boarding
8.1Food
Airline reviews

The business class is excellent. I loved the food, and the crew was very attentive and professional. From boarding to arrival, everything felt smooth and well-organised.

10.0 ExcellentFiruz, Apr 2026
ICN - LAX
Read more Korean Air reviews

The business class is excellent. I loved the food, and the crew was very attentive and professional. From boarding to arrival, everything felt smooth and well-organised.

AAAAHHHH... It was shocking in a very positive way, the attention to detail, the courtesy, the manners of all personnel on board, the constant honest smiling. You can see and feel they take pride in all they do no matter how trivial. The plane in general was very comfortable. I can't wait to do it again

Great service and comfort level. You can have more of vegetarian food options.

It’s great, long flight and arrive safe at destination

Everything was excellent as I expected. They also had a very caring crew. I had a headache and asked a Tylenol. The crew members kept checking with me how I was doing.

They were very accommodating of a dietary issue. Nice movie & tv selections. Non-stop helped get through a very long (15 hr) flight

everything was fine, would have liked better food but it was warm, great choices for movies

It was horrible. The flight crew was unfriendly and the food was absolutely horrible.

They texted me my gate number and then they texted me again it’s now boarding but in different gate, and the gate was so far from the gate they texted me earlier. I have to run just to get to my flight. They always do that.

I like your stewardess, they are nice. However, your food could have been better and wheres your dessert? You do not offer beer or scotch. I do not drink alcohol biut my husband can have one or two, he has to ask if he can have one. during dinner or lunch, it should be offerred. Also, you do not have the most famous drinks ginger ale

It was good, on time boarding. Have a good service. .

Better food quality and suggest using the 777 for the HKG-BOS leg instead of the A330 since the seat pitch seems better on the Boeing.

Food isn’t hot, seat is too tight even for a person weight 120 lbs.

Seat is too small. Food selection is limited and often ran out of selectable item.

The go to HK trip will easily giving jetlag, but coming back to Chicago has no jetlag because of the time taking off matter.

Despite the crew's rough day, they were all very focused and friendly. The flight was too short for a meal, so no rating on that. Re. the AA app. It still isn't ready for prime time. AA works with Cathy Pacific for international flights to LA and the Aa jump to PHX. But the AA app can't find my trip and this can be problematic with flight delays and regatings at LAX.

I didn’t use entertainment But everything else was of excellent quality

It's basically 15 hours with an airline in economy class. There's really not much of anything that could have been done better unless I had a first class ticket. Cathay Pacific does excellent work, with a very professional, friendly and attentive crew. It's literally the only airline that I will fly to Southeast Asia.

The flight was delayed for 30 mins. The overall experience was good.

Flight crew went above and beyond to make sure the flight was enjoyable for us!

Everything you need to know for your flight from Phnom Penh to Boston

Information on your arrival and departure airports