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Cheap flights from Phnom Penh (KTI) to Boston (BOS)

KTI — BOS
Sep 19 — Sep 261
Sat 9/19
Sat 9/26
1 adult, Economy
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1. Tell us where you want to go

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2. Select your favorite providers

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Find flight deals from Phnom Penh to Boston

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

May

Cheapest in

January

Average price

$1,823
Provider with most accurate pricing for Phnom Penh Techo Intl-Boston Logan Intl flight deals.
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Provider most trusted by Cheapflights users for Phnom Penh Techo Intl-Boston Logan Intl flights.
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Highest demand for flights based on searches. 7% potential increase in price ($141 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($50 potential savings vs. average RT price).
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Average for round-trip flights in August 2026
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Compare providers for flights from Phnom Penh to Boston

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Phnom Penh to Boston in August.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
BusinessClassPrice Accuracy3 starsTrust Score*3 stars
GotogatePrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy2 starsTrust Score*3 stars
oojoPrice Accuracy3 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Phnom Penh-Boston flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Phnom Penh-Boston flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Phnom Penh-Boston flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Phnom Penh-Boston flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Phnom Penh-Boston flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

Cheapflights Insights

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

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 $1,266). Flying from Phnom Penh to Boston in May is currently the most expensive (average of $2,177). 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

See what other customers who have flown with Korean Air and Cathay Pacific from Phnom Penh to Boston have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,221 reviews

Food

8.1

Entertainment

8.2

Overall

8.4

Boarding

8.5

Crew

8.7

Comfort

8.3

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
1,221 reviews
Korean Air
8.4
Very good
1,221 reviews

Food

8.1

Entertainment

8.2

Overall

8.4

Boarding

8.5

Crew

8.7

Comfort

8.3

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
1,455 reviews
Korean Air
8.4
Very good
1,221 reviews

Food

8.1

Entertainment

8.2

Overall

8.4

Boarding

8.5

Crew

8.7

Comfort

8.3

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

  • What are the cheapest airlines flying from Phnom Penh to Boston round-trip?

    Flying on Korean Air is currently your cheapest option to Boston, with prices starting at $1,241. Another option worth looking into is Cathay Pacific, starting at $1,293 round trip. Korean Air is currently priced 24% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Phnom Penh to Boston one-way?

    For one-way options, check prices for Etihad Airways. According to our data, you can fly for as low as $694. Users have also found prices from $866 and $969 on Cathay Pacific and Korean Air, respectively.

  • 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 $1,266). Flying from Phnom Penh to Boston in May is currently the most expensive (average of $2,177). 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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Top 2 airlines flying from Phnom Penh to Boston

AirlineCheapestAverageFlexibilityOn-time
Korean AirCheapest$1,241Average$1,728FlexibilityNo cancel feeOn-time81%
Cathay PacificCheapest$1,293Average$1,818FlexibilityNo cancel feeOn-time72%

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