When did momondo last update prices for flights from Boston Logan Intl Airport to Siem Reap?

Prices for flights from Boston Logan Intl Airport to Siem Reap were last updated today.

How old do you have to be to fly from Boston Logan Intl Airport to Siem Reap?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Boston Logan Intl Airport to Siem Reap.

What documentation or ID do you need to fly to Siem Reap?

The required travel and health documents for your Siem Reap trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Siem Reap. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$629 Cheap Flights from Boston to Siem Reap in 2026

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Find the cheapest flights from Boston to Siem Reap

Round-trip

One-way

Cheap round-trip flights

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1:00 pm - 3:55 pm

BOS

SAI

38h 55m

3 stops

4:45 pm - 12:05 am

SAI

BOS

43h 20m

2 stops

$1,181Multiple Airlines

Wed, Nov 4 - Thu, Dec 10

4:25 pm - 5:50 pm

BOS

SAI

38h 25m

2 stops

7:20 pm - 2:40 pm

SAI

BOS

54h 20m

2 stops

$1,195Multiple Airlines

Mon, Aug 3 - Fri, Aug 21

4:25 pm - 11:15 am

BOS

SAI

31h 50m

2 stops

3:10 pm - 2:40 pm

SAI

BOS

58h 30m

2 stops

$1,197Multiple Airlines

Mon, Aug 3 - Fri, Aug 21

4:25 pm - 5:50 pm

BOS

SAI

38h 25m

2 stops

7:20 pm - 2:40 pm

SAI

BOS

54h 20m

2 stops

$1,225Multiple Airlines

Mon, Aug 3 - Fri, Aug 21

4:25 pm - 11:15 am

BOS

SAI

31h 50m

2 stops

3:10 pm - 2:40 pm

SAI

BOS

58h 30m

2 stops

$1,232Multiple Airlines

Mon, Aug 3 - Fri, Aug 21

12:30 am - 6:45 pm

BOS

SAI

30h 15m

2 stops

7:25 pm - 10:00 pm

SAI

BOS

38h 35m

2 stops

$1,254Multiple Airlines

Tue, Nov 3 - Thu, Dec 10

6:00 am - 9:40 am

BOS

SAI

40h 40m

2 stops

10:30 am - 11:59 pm

SAI

BOS

48h 29m

3 stops

$1,281United Airlines

Mon, Aug 17 - Mon, Aug 31

12:42 pm - 9:40 am

BOS

SAI

33h 58m

3 stops

10:30 am - 11:59 pm

SAI

BOS

48h 29m

2 stops

$1,295Singapore Airlines

Mon, Aug 24 - Mon, Aug 31

12:42 pm - 9:40 am

BOS

SAI

33h 58m

3 stops

10:30 am - 11:59 pm

SAI

BOS

48h 29m

2 stops

$1,351Singapore Airlines

Mon, Aug 17 - Mon, Aug 31

4:25 pm - 12:15 pm

BOS

SAI

32h 50m

2 stops

3:10 pm - 2:40 pm

SAI

BOS

34h 30m

2 stops

$1,477Multiple Airlines

Fri, Aug 14 - Sat, Aug 22

United Airlines flights from Boston to Region of Siem Reap

Our best United Airlines deals on Boston to Region of Siem Reap flight tickets

United Airlines

Aug 17

BOS6:00 amBoston Logan Intl

40h 40m

2 stops

SAI9:40 amSiem Reap–Angkor Intl

Aug 31

SAI10:30 amSiem Reap–Angkor Intl

48h 29m

3 stops

BOS11:59 pmBoston Logan Intl

$1,281

United Airlines

Aug 17

BOS9:20 amBoston Logan Intl

37h 20m

2 stops

SAI9:40 amSiem Reap–Angkor Intl

Aug 31

SAI10:30 amSiem Reap–Angkor Intl

45h 32m

2 stops

BOS9:02 pmBoston Logan Intl

$1,488

Qatar Airways flights from Boston to Region of Siem Reap

Our best Qatar Airways deals on Boston to Region of Siem Reap flight tickets

Qatar Airways

Aug 3

BOS7:09 pmBoston Logan Intl

30h 06m

3 stops

SAI12:15 pmSiem Reap–Angkor Intl

Aug 21

SAI9:40 amSiem Reap–Angkor Intl

64h 35m

2 stops

BOS3:15 pmBoston Logan Intl

$2,068

Qatar Airways

Jul 4

BOS6:59 pmBoston Logan Intl

30h 16m

3 stops

SAI12:15 pmSiem Reap–Angkor Intl

Jul 11

SAI7:35 pmSiem Reap–Angkor Intl

30h 40m

2 stops

BOS3:15 pmBoston Logan Intl

$2,079

Qatar Airways

Aug 3

BOS8:41 amBoston Logan Intl

37h 19m

3 stops

SAI9:00 amSiem Reap–Angkor Intl

Aug 21

SAI12:55 pmSiem Reap–Angkor Intl

61h 20m

2 stops

BOS3:15 pmBoston Logan Intl

$2,103

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonSiem Reap

BOS - SAI

BOSSAI

Boston Logan Intl

Wed 11/4

1:00 pm-3:55 pm

3 stops38h 55m

Siem Reap–Angkor Intl

Thu 12/10

4:45 pm-12:05 am

2 stops43h 20m

$1,181

BostonSiem Reap

BOS - SAI

BOSSAI

Boston Logan Intl

Mon 8/3

4:25 pm-5:50 pm

2 stops38h 25m

Siem Reap–Angkor Intl

Fri 8/21

7:20 pm-2:40 pm

2 stops54h 20m

$1,195

BostonSiem Reap

BOS - SAI

BOSSAI

Boston Logan Intl

Mon 8/3

4:25 pm-11:15 am

2 stops31h 50m

Siem Reap–Angkor Intl

Fri 8/21

3:10 pm-2:40 pm

2 stops58h 30m

$1,197

BostonSiem Reap

BOS - SAI

BOSSAI

Boston Logan Intl

Mon 8/3

4:25 pm-5:50 pm

2 stops38h 25m

Siem Reap–Angkor Intl

Fri 8/21

7:20 pm-2:40 pm

2 stops54h 20m

$1,225

BostonSiem Reap

BOS - SAI

BOSSAI

Boston Logan Intl

Mon 8/3

4:25 pm-11:15 am

2 stops31h 50m

Siem Reap–Angkor Intl

Fri 8/21

3:10 pm-2:40 pm

2 stops58h 30m

$1,232

BostonSiem Reap

BOS - SAI

BOSSAI

Boston Logan Intl

Tue 11/3

12:30 am-6:45 pm

2 stops30h 15m

Siem Reap–Angkor Intl

Thu 12/10

7:25 pm-10:00 pm

2 stops38h 35m

$1,254

BostonSiem Reap

BOS - SAI

BOSSAI

Boston Logan Intl

Mon 8/17

6:00 am-9:40 am

2 stops40h 40m

Siem Reap–Angkor Intl

Mon 8/31

10:30 am-11:59 pm

3 stops48h 29m

$1,281

BostonSiem Reap

BOS - SAI

BOSSAI

Boston Logan Intl

Mon 8/24

12:42 pm-9:40 am

3 stops33h 58m

Siem Reap–Angkor Intl

Mon 8/31

10:30 am-11:59 pm

2 stops48h 29m

$1,295

BostonSiem Reap

BOS - SAI

BOSSAI

Boston Logan Intl

Mon 8/17

12:42 pm-9:40 am

3 stops33h 58m

Siem Reap–Angkor Intl

Mon 8/31

10:30 am-11:59 pm

2 stops48h 29m

$1,351

Quickest round-trip

BostonSiem Reap

BOS - SAI

BOSSAI

Boston Logan Intl

Fri 8/14

4:25 pm-12:15 pm

2 stops32h 50m

Siem Reap–Angkor Intl

Sat 8/22

3:10 pm-2:40 pm

2 stops34h 30m

$1,477

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Boston to Region of Siem Reap

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 airline that flies from Boston Logan Intl to Siem Reap?

Singapore Airlines is the most popular carrier operating from Boston Logan Intl to Siem Reap

Cheap Boston to Region of Siem Reap flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to Region of Siem Reap

Fastest flight time	24h 45m
Direct flights	None

The fastest flight from Boston to Region of Siem Reap takes 24h 45m

There are no direct flights from Boston to Region of Siem Reap. There are no popular flight routes from Boston to Region of Siem Reap.

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Frequently asked questions about flying from Boston to Siem Reap

When did momondo last update prices for flights from Boston Logan Intl Airport to Siem Reap?
Prices for flights from Boston Logan Intl Airport to Siem Reap were last updated today.
How old do you have to be to fly from Boston Logan Intl Airport to Siem Reap?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Boston Logan Intl Airport to Siem Reap.
What documentation or ID do you need to fly to Siem Reap?
The required travel and health documents for your Siem Reap trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Siem Reap. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Boston to Siem Reap?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Boston to Siem Reap. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Boston to Siem Reap with flexible booking policies on momondo?

momondo does allow users to show only those flights to Siem Reap from Boston which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Boston to Siem Reap?

Once all potential Boston to Siem Reap flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Boston to Siem Reap right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Siem Reap, momondo offers a useful price alert feature which will track prices for flights to Siem Reap from Boston and alert you when they change.

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Cheap flights from Boston to Siem Reap from $629

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 Siem Reap departing on 11/17. 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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United Airlines flights from Boston to Region of Siem Reap

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Qatar Airways flights from Boston to Region of Siem Reap

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Frequently asked questions about flying from Boston to Siem Reap

Why use momondo?

An easier way to manage your Region of Siem Reap trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Siem Reap

Popular cities in Siem Reap

Popular flights according to clicks in the last 7 days on momondo

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List of cabin classes available on flights landing in Siem Reap. Availability may vary depending on flight origin and airline.

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