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

Find the cheapest flights from Boston to Siem Reap

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

4:40 pm - 2:25 pmBOS Boston Logan Intl-SAI Siem Reap–Angkor Intl

34h 45m2 stops Abu Dhabi Zayed Intl Phnom Penh Techo Intl

2:50 pm - 2:10 pmSAI Siem Reap–Angkor Intl-BOS Boston Logan Intl

59h 20m2 stops Phnom Penh Techo Intl Abu Dhabi Zayed Intl

$1,209Multiple Airlines

Wed, Oct 28 - Sun, Nov 22

3:40 pm - 10:55 amBOS Boston Logan Intl-SAI Siem Reap–Angkor Intl

31h 15m2 stops Abu Dhabi Zayed Intl Phnom Penh Techo Intl

10:25 pm - 2:10 pmSAI Siem Reap–Angkor Intl-BOS Boston Logan Intl

51h 45m2 stops Phnom Penh Techo Intl Abu Dhabi Zayed Intl

$1,223Multiple Airlines

Sat, Feb 13 - Sun, Feb 21

12:38 pm - 9:55 amBOS Boston Logan Intl-SAI Siem Reap–Angkor Intl

33h 17m3 stops New York John F Kennedy Intl Frankfurt am Main Singapore Changi

10:45 am - 8:03 pmSAI Siem Reap–Angkor Intl-BOS Boston Logan Intl

45h 18m3 stops Singapore Changi Frankfurt am Main New York John F Kennedy Intl

$1,416Singapore Airlines

Sat, Feb 13 - Sun, Feb 21

4:40 pm - 10:55 amBOS Boston Logan Intl-SAI Siem Reap–Angkor Intl

31h 15m2 stops Abu Dhabi Zayed Intl Phnom Penh Techo Intl

4:50 pm - 2:10 pmSAI Siem Reap–Angkor Intl-BOS Boston Logan Intl

33h 20m3 stops Bangkok Don Mueang Intl Bengaluru Intl Abu Dhabi Zayed Intl

$1,477Multiple Airlines

Wed, Oct 28 - Sun, Nov 22

7:40 pm - 9:10 pmBOS Boston Logan Intl-SAI Siem Reap–Angkor Intl

61h 30m3 stops Toronto Pearson Intl Dubai Intl Bangkok Suvarnabhumi

1:20 pm - 1:55 pmSAI Siem Reap–Angkor Intl-BOS Boston Logan Intl

60h 35m2 stops Bangkok Suvarnabhumi Dubai Intl

$1,621Emirates

Sat, Feb 13 - Sun, Feb 21

11:05 pm - 9:45 pmBOS Boston Logan Intl-SAI Siem Reap–Angkor Intl

35h 40m3 stops Dubai Intl Singapore Changi Phnom Penh Techo Intl

10:25 pm - 1:55 pmSAI Siem Reap–Angkor Intl-BOS Boston Logan Intl

51h 30m3 stops Phnom Penh Techo Intl Singapore Changi Dubai Intl

$1,766Multiple Airlines

Wed, Oct 28 - Sun, Nov 22

7:30 am - 4:00 pmBOS Boston Logan Intl-SAI Siem Reap–Angkor Intl

44h 30m3 stops New York John F Kennedy Intl Frankfurt am Main Singapore Changi

10:45 am - 7:41 pmSAI Siem Reap–Angkor Intl-BOS Boston Logan Intl

44h 56m3 stops Singapore Changi Frankfurt am Main New York John F Kennedy Intl

$2,529Singapore Airlines

Sat, Dec 19 - Tue, Dec 29

8:00 pm - 8:45 amBOS Boston Logan Intl-SAI Siem Reap–Angkor Intl

48h 45m2 stops Istanbul Bangkok Suvarnabhumi

7:25 pm - 6:05 pmSAI Siem Reap–Angkor Intl-BOS Boston Logan Intl

34h 40m2 stops Bangkok Suvarnabhumi Istanbul

$2,563Multiple Airlines

Sat, Dec 19 - Tue, Dec 29

7:40 pm - 9:10 pmBOS Boston Logan Intl-SAI Siem Reap–Angkor Intl

61h 30m3 stops Toronto Pearson Intl Dubai Intl Bangkok Suvarnabhumi

7:25 pm - 6:05 pmSAI Siem Reap–Angkor Intl-BOS Boston Logan Intl

34h 40m2 stops Bangkok Suvarnabhumi Istanbul

$2,602Multiple Airlines

Sat, Dec 19 - Tue, Dec 29

5:15 pm - 8:45 amBOS Boston Logan Intl-SAI Siem Reap–Angkor Intl

27h 30m3 stops Dublin Brussels Bruxelles-National Bangkok Suvarnabhumi

7:05 pm - 1:55 pmSAI Siem Reap–Angkor Intl-BOS Boston Logan Intl

30h 50m2 stops Hanoi Noibai Dubai Intl

$2,783Multiple Airlines

Sat, Dec 19 - Sat, Jan 2

Cheap last minute flights

Enter your travel dates to find the best prices.

4:40 pm - 9:00 amBOS Boston Logan Intl-SAI Siem Reap–Angkor Intl

29h 20m2 stops Abu Dhabi Zayed Intl Bangkok Suvarnabhumi

12:40 pm - 2:40 pmSAI Siem Reap–Angkor Intl-BOS Boston Logan Intl

37h 00m2 stops Phnom Penh Techo Intl Abu Dhabi Zayed Intl

$1,245Multiple Airlines

Mon, Sep 7 - Tue, Sep 22

4:35 pm - 2:20 pmBOS Boston Logan Intl-SAI Siem Reap–Angkor Intl

34h 45m2 stops Abu Dhabi Zayed Intl Phnom Penh Techo Intl

12:55 pm - 2:10 pmSAI Siem Reap–Angkor Intl-BOS Boston Logan Intl

36h 15m2 stops Bangkok Suvarnabhumi Abu Dhabi Zayed Intl

$1,331Multiple Airlines

Sat, Sep 5 - Mon, Sep 14

11:05 pm - 12:15 pmBOS Boston Logan Intl-SAI Siem Reap–Angkor Intl

26h 10m2 stops Dubai Intl Bangkok Suvarnabhumi

11:50 pm - 6:04 pmSAI Siem Reap–Angkor Intl-BOS Boston Logan Intl

53h 14m3 stops Bangkok Suvarnabhumi Dubai Intl Toronto Pearson Intl

$1,499Emirates

Mon, Sep 7 - Tue, Sep 22

4:35 pm - 2:20 pmBOS Boston Logan Intl-SAI Siem Reap–Angkor Intl

34h 45m2 stops Abu Dhabi Zayed Intl Phnom Penh Techo Intl

3:00 pm - 2:10 pmSAI Siem Reap–Angkor Intl-BOS Boston Logan Intl

34h 10m3 stops Ho Chi Minh City Bangkok Suvarnabhumi Abu Dhabi Zayed Intl

$1,612Multiple Airlines

Sat, Sep 5 - Mon, Sep 14

4:35 pm - 11:10 amBOS Boston Logan Intl-SAI Siem Reap–Angkor Intl

31h 35m3 stops Abu Dhabi Zayed Intl New Delhi Indira Gandhi Intl Bangkok Don Mueang Intl

4:55 pm - 2:10 pmSAI Siem Reap–Angkor Intl-BOS Boston Logan Intl

32h 15m3 stops Bangkok Don Mueang Intl Kolkata Netaji S. Chandra Abu Dhabi Zayed Intl

$1,629Multiple Airlines

Sat, Sep 5 - Mon, Sep 14

10:00 pm - 6:45 pmBOS Boston Logan Intl-SAI Siem Reap–Angkor Intl

33h 45m3 stops Doha Hamad Intl Kuala Lumpur Intl Bangkok Suvarnabhumi

12:55 pm - 3:15 pmSAI Siem Reap–Angkor Intl-BOS Boston Logan Intl

37h 20m3 stops Bangkok Suvarnabhumi Kuala Lumpur Intl Doha Hamad Intl

$2,385Multiple Airlines

Mon, Sep 7 - Tue, Sep 22

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Singapore Airlines flights from Boston to Region of Siem Reap

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

Singapore Airlines

Feb 13

BOS12:38 pmBoston Logan Intl

33h 17m

3 stops

SAI9:55 amSiem Reap–Angkor Intl

Feb 21

SAI10:45 amSiem Reap–Angkor Intl

45h 18m

3 stops

BOS8:03 pmBoston Logan Intl

$1,416

Singapore Airlines

Dec 19

BOS7:30 amBoston Logan Intl

44h 30m

3 stops

SAI4:00 pmSiem Reap–Angkor Intl

Dec 29

SAI10:45 amSiem Reap–Angkor Intl

44h 56m

3 stops

BOS7:41 pmBoston Logan Intl

$2,529

Emirates flights from Boston to Region of Siem Reap

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

Emirates

Sep 7

BOS11:05 pmBoston Logan Intl

26h 10m

2 stops

SAI12:15 pmSiem Reap–Angkor Intl

Sep 22

SAI11:50 pmSiem Reap–Angkor Intl

53h 14m

3 stops

BOS6:04 pmBoston Logan Intl

$1,499

Emirates

Feb 13

BOS7:40 pmBoston Logan Intl

61h 30m

3 stops

SAI9:10 pmSiem Reap–Angkor Intl

Feb 21

SAI1:20 pmSiem Reap–Angkor Intl

60h 35m

2 stops

BOS1:55 pmBoston Logan Intl

$1,621

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonSiem Reap

BOS Boston Logan Intl - SAI Siem Reap–Angkor Intl

BOSSAI

Boston Logan Intl

Wed 10/28

4:40 pm-2:25 pm

2 stops34h 45m

Siem Reap–Angkor Intl

Sun 11/22

2:50 pm-2:10 pm

2 stops59h 20m

$1,209

BostonSiem Reap

BOS Boston Logan Intl - SAI Siem Reap–Angkor Intl

BOSSAI

Boston Logan Intl

Sat 2/13

3:40 pm-10:55 am

2 stops31h 15m

Siem Reap–Angkor Intl

Sun 2/21

10:25 pm-2:10 pm

2 stops51h 45m

$1,223

BostonSiem Reap

BOS Boston Logan Intl - SAI Siem Reap–Angkor Intl

BOSSAI

Boston Logan Intl

Sat 2/13

12:38 pm-9:55 am

3 stops33h 17m

Siem Reap–Angkor Intl

Sun 2/21

10:45 am-8:03 pm

3 stops45h 18m

$1,416

BostonSiem Reap

BOS Boston Logan Intl - SAI Siem Reap–Angkor Intl

BOSSAI

Boston Logan Intl

Wed 10/28

4:40 pm-10:55 am

2 stops31h 15m

Siem Reap–Angkor Intl

Sun 11/22

4:50 pm-2:10 pm

3 stops33h 20m

$1,477

BostonSiem Reap

BOS Boston Logan Intl - SAI Siem Reap–Angkor Intl

BOSSAI

Boston Logan Intl

Sat 2/13

7:40 pm-9:10 pm

3 stops61h 30m

Siem Reap–Angkor Intl

Sun 2/21

1:20 pm-1:55 pm

2 stops60h 35m

$1,621

BostonSiem Reap

BOS Boston Logan Intl - SAI Siem Reap–Angkor Intl

BOSSAI

Boston Logan Intl

Wed 10/28

11:05 pm-9:45 pm

3 stops35h 40m

Siem Reap–Angkor Intl

Sun 11/22

10:25 pm-1:55 pm

3 stops51h 30m

$1,766

BostonSiem Reap

BOS Boston Logan Intl - SAI Siem Reap–Angkor Intl

BOSSAI

Boston Logan Intl

Sat 12/19

7:30 am-4:00 pm

3 stops44h 30m

Siem Reap–Angkor Intl

Tue 12/29

10:45 am-7:41 pm

3 stops44h 56m

$2,529

BostonSiem Reap

BOS Boston Logan Intl - SAI Siem Reap–Angkor Intl

BOSSAI

Boston Logan Intl

Sat 12/19

8:00 pm-8:45 am

2 stops48h 45m

Siem Reap–Angkor Intl

Tue 12/29

7:25 pm-6:05 pm

2 stops34h 40m

$2,563

BostonSiem Reap

BOS Boston Logan Intl - SAI Siem Reap–Angkor Intl

BOSSAI

Boston Logan Intl

Sat 12/19

7:40 pm-9:10 pm

3 stops61h 30m

Siem Reap–Angkor Intl

Tue 12/29

7:25 pm-6:05 pm

2 stops34h 40m

$2,602

Quickest round-trip

BostonSiem Reap

BOS Boston Logan Intl - SAI Siem Reap–Angkor Intl

BOSSAI

Boston Logan Intl

Sat 12/19

5:15 pm-8:45 am

3 stops27h 30m

Siem Reap–Angkor Intl

Sat 1/2

7:05 pm-1:55 pm

2 stops30h 50m

$2,783

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

Best Price Found	$629
Fastest flight time	31h 15m
Direct flights	None

The best one-way flight to Region of Siem Reap from Boston in the past 72 hours is $629. The best round-trip flight deal from Boston to Region of Siem Reap found on momondo in the last 72 hours is $1,209.

The fastest flight from Boston to Region of Siem Reap takes 31h 15m

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.

Search flight deals

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.

An easier way to manage your Region of Siem Reap trip

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Flights to Phnom Penh

Flights to Siem Reapfrom $757

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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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Singapore Airlines flights from Boston to Region of Siem Reap

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

Emirates flights from Boston to Region of Siem Reap

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

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

What is the cheapest airline that flies from Boston Logan Intl to Siem Reap?

Cheap Boston to Region of Siem Reap flight deals and tips

Best Price Found

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Direct flights

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

Boston flight routes

According to popular flight searches on momondo this year

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According to popular flight searches on momondo this year

Fly your favorite airline to Siem Reap

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Cabin classes currently available on flights to Siem Reap

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

Complete your trip to Siem Reap

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