Are direct flights from Boston to Phnom Penh always the best option?

Direct flights offer convenience and save travel time, but they are not always the most economical choice. Flights with layovers can sometimes be more affordable, especially for longer international routes. Consider your budget and time constraints when deciding between direct and connecting flights.

Can flexible travel dates help on Boston to Phnom Penh flights?

Yes, being flexible with your travel dates can often lead to finding more affordable flights. Prices can vary significantly depending on the day of the week or season. Shifting your departure or return by a few days may result in notable savings.

What extra costs should I check before booking Boston to Phnom Penh flights?

Before booking, always check for potential extra costs such as baggage fees, seat selection charges, and in-flight services. Also, consider the cost of transportation to and from the airports at both your origin and destination. These additional expenses can impact the total cost of your trip.

Flights From Boston

To Phnom Penh

Cheap Flights from Boston to Phnom Penh

Browse current best options from Boston. Become a member to unlock all deals and get alerts when new deals appear.

Deals from

Boston

RatePunk searches hundreds of travel sites at once for deals on flights to Phnom Penh

Prices updated 1 day ago

461 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated Sep 14, 2026.)

Today’s best flight deals from Boston to Phnom Penh

Explore current cheapest deals departing from Boston to Phnom Penh

2026-10-31 – 2026-11-23
BOS - Phnom Penh
86% AI deal score
$1,187
$959
Round trip
2026-09-22 – 2026-10-01
BOS - Phnom Penh
85% AI deal score
$1,221
$1,008
Round trip
2026-10-06 – 2026-10-27
BOS - Phnom Penh
84% AI deal score
$1,183
$1,008
Round trip
2026-10-12 – 2026-10-19
BOS - Phnom Penh
90% AI deal score
$1,266
$1,012
Round trip
2026-09-28 – 2026-10-22
BOS - Phnom Penh
83% AI deal score
$1,135
$1,012
Round trip
2026-09-24 – 2026-10-21
BOS - Phnom Penh
83% AI deal score
$1,172
$1,012
Round trip
2026-09-17 – 2026-10-15
BOS - Phnom Penh
89% AI deal score
$1,274
$1,016
Round trip
2026-09-24 – 2026-10-13
BOS - Phnom Penh
83% AI deal score
$1,173
$1,016
Round trip
2026-10-08 – 2026-10-15
BOS - Phnom Penh
90% AI deal score
$1,266
$1,016
Round trip
2026-09-28 – 2026-10-27
BOS - Phnom Penh
82% AI deal score
$1,135
$1,016
Round trip

Boston to Phnom Penh: Overview

Insights for flights from Boston to Phnom Penh

For those seeking cheap flights from Boston to Phnom Penh, fares typically range from $1831–$2903, with a median of $2315. Right now, current fares are near the typical level for this route. Approximately 7% of recent fares from Boston to Phnom Penh have been classified as a good price. Deals are infrequent, so a price alert helps in securing better value.

When is the cheapest time to fly from Boston to Phnom Penh? The data indicates that April is the most affordable month, with a median fare of $1140. Following April, June offers a median fare of $1448, and May is also a relatively inexpensive option, with a median of $1497.

Most itineraries for this route connect at least once, as 0% of recent fares from Boston to Phnom Penh were non-stop. For connecting itineraries, the typical number of stopovers is 2.

A typical journey from Boston to Phnom Penh takes approximately 61h 0m, including connections. This median duration reflects the multiple stopovers common on this long-haul route.

The distance between Boston and Phnom Penh is 14006 km, classifying this as a long-haul route. This significant distance contributes to the extended journey times and the necessity for connecting flights.

How much is a round trip from Boston to Phnom Penh

Regular price: $1,059 - $2,092

Prices are currently below the regular range.

The regular price range for flights from Boston to Phnom Penh is between $1059 and $2092. The current lowest deal is $932 on Kayak, for travel from Oct 31-Nov 23.

now $932

Low $1,059

High $2,092

The cheapest time to fly from Boston to Phnom Penh

The cheapest month to fly from Boston to Phnom Penh is April, with a median price of $1140. The most expensive month is May, with a median price of $1497. Prices are generally lower from April to June.

April

Cheapest

Flights from $1,140

May

Most Expensive

Flights from $1,497

Apr

May

Jun

Direct flights from Boston to Phnom Penh

Cathay Pacific

Korean Air

Etihad Airways

Turkish Airlines

Last-minute flights going from Boston to Phnom Penh

Mon, Sep 14

⌛ Last-Minute

BOS - Phnom Penh

Boston (BOS) - Phnom Penh (KTI)

$1,403

$1,021

One-way

Tue, Sep 15

⌛ Last-Minute

BOS - Phnom Penh

Boston (BOS) - Phnom Penh (KTI)

Etihad Airways

$1,278

$1,016

One-way

Thu, Sep 17

⌛ Last-Minute

BOS - Phnom Penh

Boston (BOS) - Phnom Penh (KTI)

Etihad Airways

$1,274

$1,016

One-way

Thu, Sep 17

⌛ Last-Minute

BOS - Phnom Penh

Boston (BOS) - Phnom Penh (KTI)

Cathay Pacific

$1,296

$1,212

One-way

Sat, Sep 19

⌛ Last-Minute

BOS - Phnom Penh

Boston (BOS) - Phnom Penh (KTI)

Etihad Airways

$1,266

$1,096

One-way

Tue, Sep 22

⌛ Last-Minute

BOS - Phnom Penh

Boston (BOS) - Phnom Penh (KTI)

Etihad Airways

$1,221

$1,008

One-way

Biggest price drops on these dates for flights from Boston to Phnom Penh

7 nights

Sep 14 - Sep 21

$1,403 → $1,021

27%

23 nights

Oct 31 - Nov 23

$1,187 → $932

21%

13 nights

Dec 2 - Dec 15

$1,331 → $1,130

15%

7 nights

Oct 28 - Nov 4

$1,262 → $1,066

16%

Popular Airports to fly from Boston to Phnom Penh

Boston - Phnom Penh route insights

💸 Price insights

Recent fares are near the typical level

Recent fares for Boston to Phnom Penh are near the typical level for this route.

📅 Best time to fly

April, June, and May offer lower median prices

Historically, April ($1140), June ($1448), and May ($1497) have offered the lowest median prices.

⏱️ Flight duration

Flights typically take 61h 0m

The median flight duration from Boston to Phnom Penh is 61 hours, with 2 stopovers typically.

✈️ Airlines & availability

Connecting flights are dominant

Direct flights are not available; connecting flights are dominant for this long-haul route.

🏆 Airline highlight

Cathay Pacific offers many deals

Cathay Pacific has offered 34 deals recently, making it a frequent option for this route.

🎯 Booking tip

Deals for this route are rare

Deals for flights from Boston to Phnom Penh are rare, so book when you see a good price.

Boston main airports to depart from

Logan International (BOS)

Cheapest

Logan International is a convenient departure point for flights to Phnom Penh.

📍 ~4 km from Boston (reachable by car or public transport)

💸 Flights from ~$1,013

Phnom Penh main airports to arrive at

Techo International Airport (KTI)

Cheapest

Techo International Airport is an alternative arrival airport for flights from Boston to Phnom Penh.

📍 ~20 km from Phnom Penh city center (reachable by car)

💸 Flights from ~$993

Airports nearby Phnom Penh used as alternative

Siem Reap–Angkor International Airport (SAI)

Siem Reap–Angkor International Airport is a reliable domestic alternative within Cambodia, offering extensive regional and long-haul connectivity.

📍 ~230 km from Phnom Penh (reachable by domestic flights or road, 5-6 hours)

💸 Flights from ~$1,268

Business & First Class Flight Deals to Phnom Penh

$4,789

Save $2,188

Air Canada, +1

Business Class

From BOS

Elite

Oct 07

Phnom Penh, Cambodia

91% AI deal score

$6,833

$4,789

Save $2,044

Air Canada, +1

Business Class

From BOS

Elite

Oct 19

Phnom Penh, Cambodia

91% AI deal score

$7,047

$4,789

Save $2,258

Air Canada, +1

Business Class

From BOS

Elite

Oct 07

Phnom Penh, Cambodia

91% AI deal score

$6,833

$4,791

Save $2,042

Air Canada, +1

Business Class

Frequently Asked Questions About Flights to Phnom Penh

To find more affordable flights, consider being flexible with your travel dates and comparing prices across different airlines and booking sites. Setting up price alerts can also help you monitor fare changes. Looking into flights with layovers may sometimes offer lower prices than direct routes.

Booking flights in advance often provides more options and potentially better prices, though last-minute deals can sometimes appear. Prices can fluctuate, so monitoring fares over time may help you identify a good booking window. Weekday bookings are sometimes more affordable than weekend bookings.

Comparing nearby airports can sometimes reveal different flight options or prices. While it may add to your ground travel, the potential savings on airfare could be significant. Always factor in the additional time and cost of transportation to and from alternative airports.

Related routes

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Flights to Phnom Penh from other cities

Flights from Bangkok to Phnom Penh Flights from Beijing to Phnom Penh Flights from Chiang Mai to Phnom Penh Flights from Davao to Phnom Penh Flights from Denpasar to Phnom Penh Flights from Ho Chi Minh City to Phnom Penh Flights from Hong Kong to Phnom Penh Flights from Kuala Lumpur to Phnom Penh Flights from Seoul to Phnom Penh Flights from Singapore to Phnom Penh Flights from Tokyo to Phnom Penh Flights from Toronto to Phnom Penh

Boston to Phnom Penh: Overview

Insights for flights from Boston to Phnom Penh

Most itineraries for this route connect at least once, as 0% of recent fares from Boston to Phnom Penh were non-stop. For connecting itineraries, the typical number of stopovers is 2.

A typical journey from Boston to Phnom Penh takes approximately 61h 0m, including connections. This median duration reflects the multiple stopovers common on this long-haul route.

How much is a round trip from Boston to Phnom Penh

Regular price: $1,059 - $2,092

Prices are currently below the regular range.

The regular price range for flights from Boston to Phnom Penh is between $1059 and $2092. The current lowest deal is $932 on Kayak, for travel from Oct 31-Nov 23.

now $932

Low $1,059

High $2,092

The cheapest time to fly from Boston to Phnom Penh

April

Cheapest

Flights from $1,140

May

Most Expensive

Flights from $1,497

Apr

May

Jun