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BOS - KTI

$524 Find Cheap Flights from Boston to Phnom Penh - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$1,041
Typical prices: $964-$1,466
Korean Air
Sat 11/3Fri 11/9
BOS - KTI • 1 stop
Cheapest one-way
$524
Typical prices: $611-$1,012
Multiple Airlines
Sun 3/11
BOS - KTI • 2 stops
Nonstop flights
Not available
There are currently no direct flights between Boston and Phnom Penh. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
26 weeks
in advance
Our data shows that travelers who book at least 26 weeks in advance save around 31% compared to booking last minute.
Insights
Insights
When to travel
April
Cheapest • 23% price drop
July
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Incheon Intl (ICN)
Cheapest • Avg $1,164 (round-trip)
Hong Kong Intl (HKG)
Shortest trip • 23h 13m (one-way)
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Insights
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We hope you love your trip to Phnom Penh!
Flight Deals
Booking Insights
Flight Deals

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

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boston to Phnom Penh

Tue, Nov 3 - Mon, Nov 9
Korean Air Logo
11:10 am - 10:45 pmBOS  Boston Logan Intl-KTI Phnom Penh Techo Intl
23h 35m1 stop Incheon Intl
Korean Air Logo
12:10 am - 8:50 amKTI  Phnom Penh Techo Intl-BOS Boston Logan Intl
20h 40m1 stop Incheon Intl
$1,041Korean Air
Tue, Nov 3 - Mon, Nov 9
Korean Air Logo
11:10 am - 10:45 pmBOS  Boston Logan Intl-KTI Phnom Penh Techo Intl
23h 35m1 stop Incheon Intl
Korean Air Logo
12:10 am - 8:50 amKTI  Phnom Penh Techo Intl-BOS Boston Logan Intl
20h 40m1 stop Incheon Intl
$1,042Korean Air
Thu, Nov 12 - Mon, Dec 14
Delta Logo
6:05 am - 10:45 pmBOS  Boston Logan Intl-KTI Phnom Penh Techo Intl
28h 40m2 stops Salt Lake City Incheon Intl
Delta Logo
12:10 am - 1:15 amKTI  Phnom Penh Techo Intl-BOS Boston Logan Intl
37h 05m2 stops Incheon Intl Atlanta Hartsfield-Jackson
$1,053Delta
Wed, Nov 11 - Sun, Dec 13
Delta Logo
6:05 am - 10:45 pmBOS  Boston Logan Intl-KTI Phnom Penh Techo Intl
28h 40m2 stops Salt Lake City Incheon Intl
Delta Logo
12:10 am - 3:54 pmKTI  Phnom Penh Techo Intl-BOS Boston Logan Intl
27h 44m2 stops Incheon Intl Detroit Metropolitan Wayne County
$1,053Delta
Tue, Nov 3 - Tue, Nov 10
Multiple Airlines Logo
10:00 am - 10:40 amBOS  Boston Logan Intl-KTI Phnom Penh Techo Intl
36h 40m2 stops Los Angeles Shenzhen
Multiple Airlines Logo
11:40 am - 6:30 amKTI  Phnom Penh Techo Intl-BOS Boston Logan Intl
30h 50m2 stops Shenzhen Los Angeles
$1,074Multiple Airlines
Mon, Nov 16 - Thu, Dec 10
Qatar Airways Logo
8:40 pm - 3:25 pmBOS  Boston Logan Intl-KTI Phnom Penh Techo Intl
30h 45m2 stops Doha Hamad Intl Ho Chi Minh City
Qatar Airways Logo
5:10 pm - 1:55 pmKTI  Phnom Penh Techo Intl-BOS Boston Logan Intl
32h 45m2 stops Ho Chi Minh City Doha Hamad Intl
$1,081Qatar Airways
Wed, Jan 13 - Thu, Mar 11
Qatar Airways Logo
8:40 pm - 3:25 pmBOS  Boston Logan Intl-KTI Phnom Penh Techo Intl
30h 45m2 stops Doha Hamad Intl Ho Chi Minh City
Qatar Airways Logo
5:10 pm - 1:55 pmKTI  Phnom Penh Techo Intl-BOS Boston Logan Intl
32h 45m2 stops Ho Chi Minh City Doha Hamad Intl
$1,081Qatar Airways
Tue, Jan 12 - Tue, Apr 20
Multiple Airlines Logo
3:00 pm - 10:40 amBOS  Boston Logan Intl-KTI Phnom Penh Techo Intl
31h 40m2 stops Los Angeles Shenzhen
Multiple Airlines Logo
12:15 pm - 6:20 amKTI  Phnom Penh Techo Intl-BOS Boston Logan Intl
29h 05m2 stops Shenzhen Los Angeles
$1,084Multiple Airlines
Sun, Nov 15 - Thu, Dec 10
Cathay Pacific Logo
12:30 am - 10:25 amBOS  Boston Logan Intl-KTI Phnom Penh Techo Intl
21h 55m1 stop Hong Kong Intl
Cathay Pacific Logo
11:45 am - 10:00 pmKTI  Phnom Penh Techo Intl-BOS Boston Logan Intl
22h 15m1 stop Hong Kong Intl
$1,194Cathay Pacific
Tue, Mar 30 - Mon, May 3
Cathay Pacific Logo
1:45 am - 5:15 pmBOS  Boston Logan Intl-KTI Phnom Penh Techo Intl
28h 30m1 stop Hong Kong Intl
Cathay Pacific Logo
6:30 pm - 11:05 pmKTI  Phnom Penh Techo Intl-BOS Boston Logan Intl
39h 35m1 stop Hong Kong Intl
$1,202Cathay Pacific
Booking Insights

Price, demand and travel trends for Boston to Phnom Penh flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Boston to Phnom Penh?

Round-trip flights from Boston to Phnom Penh typically range from $964 to $1,466. The lowest price found in the past 5 days was $1,041, on Korean Air.

What's the cheapest day of the week to fly from Boston to Phnom Penh?

Based on deals KAYAK users found in the last 12 months, Tuesday is the cheapest day of the week to fly from Boston to Phnom Penh. It’s 10% cheaper than the average day, while Monday is the most expensive, with prices 4% higher.

What’s the cheapest month to fly from Boston to Phnom Penh?

•April is the cheapest month to fly from Boston to Phnom Penh at $908 round-trip.
•December ($1,610) and July ($1,426) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 77% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Boston to Phnom Penh the cheapest?

Flights from Boston to Phnom Penh are cheapest 26 weeks before departure. Booking in this window typically costs about 31% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

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Key details for Boston to Phnom Penh flights

Low season

January

Cheapest flight

$524
Beat the crowds with an average 22% drop in travelers.
The most popular month to fly with an average 35% increase in travelers.
One-way flight from Boston to Phnom Penh

When to book flights from Boston to Phnom Penh

Are your dates flexible? Find out the best times to travel from Boston to Phnom Penh based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Boston to Phnom Penh flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Boston to Phnom Penh?

    Four cabin classes are available on flights from Boston to Phnom Penh:

    • Economy Class
    • Premium Economy Class
    • Business Class
    • First Class

    Prices vary by airline.

  • How long is a flight from Boston to Phnom Penh?

    A nonstop flight from Boston to Phnom Penh takes 00m, covering 8,710 miles.

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

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Boston to Phnom Penh flight?

    Round-trip flights from Boston to Phnom Penh range from $964 to $1,466, with an average of $1,185 over the past 12 months. Anything below $964 counts as a good deal.

  • How expensive are last-minute Boston to Phnom Penh flights?

    Last-minute fares on this route (booked within two weeks of departure) run 15% above the $1,185 route average. Book 26 weeks before departure for the lowest fares.

  • Have flight prices from Boston to Phnom Penh changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $1,042 to $9,708. That means the highest observed fare was about 9x higher than the lowest one.

  • How are flight prices from Boston to Phnom Penh looking right now?

    One-way fares from Boston to Phnom Penh are currently higher than usual. Average one-way flight prices are about $942, which is 17% above the typical average for this route.

  • Which airports can I use when flying from Boston to Phnom Penh?

    Flights from Boston to Phnom Penh usually depart from Boston Logan Intl (BOS) and arrive at Phnom Penh Techo Intl (KTI).

  • Which airports do connecting flights from Boston to Phnom Penh pass through?

    One-stop flights from Boston to Phnom Penh most commonly connect through:

    • Hong Kong Intl (HKG) - 66% of one-stop connections
    • Incheon Intl (ICN) - 30% of one-stop connections
    • Abu Dhabi Zayed Intl (AUH) - 4% of one-stop connections

  • Can I save money by using flexible dates for flights from Boston to Phnom Penh?

    Yes. Flexible dates can save you up to 14% on flights from Boston to Phnom Penh. Tuesday is the cheapest departure day at $1,074 round-trip on average, while Monday is the most expensive at $1,235, a difference of $161.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover airport from Boston to Phnom Penh?

    Flying via Incheon Intl (ICN) gives the shortest average 1-stop total travel time at 22h, compared with 23h 13m via Hong Kong Intl (HKG) and 31h 34m via Abu Dhabi Zayed Intl (AUH).

  • What is the time difference between Boston and Phnom Penh?

    Phnom Penh is 11 hours ahead of Boston (Indochina Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

Your guide to booking Boston to Phnom Penh flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Tuesday departure and avoid flying on Monday. On this route, Tuesday flights average $1,074, about $161 less than Monday fares (13% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 26 weeks before you fly. On this route, that window historically saves about 31% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Boston to Phnom Penh trip for April. Fares historically average $908 round-trip in that month - typically $702 less than the most expensive month, which is December (based on the last 12 months).

More options for your flight from Boston to Phnom Penh

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