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Cheap flights from Massachusetts to Siem Reap from $621

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Massachusetts to Siem Reap departing on 9/21. 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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0 bags

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Find the cheapest flights from Massachusetts to Siem Reap

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
4:25 pm - 11:15 am
BOS
-
SAI
31h 50m
2 stops
Multiple Airlines Logo
7:20 pm - 2:40 pm
SAI
-
BOS
54h 20m
2 stops
$1,242Multiple Airlines
Mon, Aug 3 - Fri, Aug 21
Emirates Logo
11:05 pm - 9:30 pm
BOS
-
SAI
35h 25m
2 stops
Emirates Logo
11:50 pm - 2:10 pm
SAI
-
BOS
25h 20m
2 stops
$1,303Emirates
Sun, May 17 - Thu, May 21
Emirates Logo
11:05 pm - 9:30 pm
BOS
-
SAI
35h 25m
2 stops
Emirates Logo
1:05 pm - 2:10 pm
SAI
-
BOS
36h 05m
2 stops
$1,304Emirates
Sun, May 17 - Mon, May 25
Emirates Logo
11:05 pm - 9:30 pm
BOS
-
SAI
35h 25m
2 stops
Emirates Logo
1:05 pm - 2:10 pm
SAI
-
BOS
60h 05m
2 stops
$1,327Emirates
Sun, May 17 - Wed, May 20
Multiple Airlines Logo
4:25 pm - 11:15 am
BOS
-
SAI
31h 50m
2 stops
Multiple Airlines Logo
3:10 pm - 2:40 pm
SAI
-
BOS
58h 30m
2 stops
$1,328Multiple Airlines
Mon, Aug 3 - Fri, Aug 21
Emirates Logo
11:05 pm - 9:30 pm
BOS
-
SAI
35h 25m
2 stops
Emirates Logo
11:50 pm - 2:10 pm
SAI
-
BOS
49h 20m
2 stops
$1,342Emirates
Sun, May 17 - Tue, May 19
Emirates Logo
11:05 pm - 9:30 pm
BOS
-
SAI
35h 25m
2 stops
Emirates Logo
1:05 pm - 2:10 pm
SAI
-
BOS
60h 05m
2 stops
$1,377Emirates
Sun, May 17 - Sun, May 24
Emirates Logo
11:05 pm - 9:30 pm
BOS
-
SAI
35h 25m
2 stops
Emirates Logo
11:50 pm - 2:10 pm
SAI
-
BOS
49h 20m
2 stops
$1,392Emirates
Sun, May 17 - Sat, May 23
Emirates Logo
11:05 pm - 12:20 pm
BOS
-
SAI
50h 15m
2 stops
Emirates Logo
11:50 pm - 2:10 pm
SAI
-
BOS
49h 20m
2 stops
$1,404Emirates
Sat, May 23 - Sat, May 30
Emirates Logo
11:05 pm - 12:20 pm
BOS
-
SAI
26h 15m
2 stops
Emirates Logo
11:50 pm - 2:10 pm
SAI
-
BOS
49h 20m
2 stops
$1,448Emirates
Fri, May 22 - Sat, May 30

Singapore Airlines flights from Massachusetts to Region of Siem Reap

Our best Singapore Airlines deals on Massachusetts to Region of Siem Reap flight tickets
Singapore Airlines
Aug 3
BOS4:30 pmBoston Logan Intl
35h 40m
3 stops
SAI3:10 pmSiem Reap–Angkor Intl
Aug 21
SAI4:00 pmSiem Reap–Angkor Intl
36h 15m
3 stops
BOS5:15 pmBoston Logan Intl
$2,281
Singapore Airlines
Aug 3
BOS4:30 pmBoston Logan Intl
30h 10m
3 stops
SAI9:40 amSiem Reap–Angkor Intl
Aug 21
SAI10:30 amSiem Reap–Angkor Intl
41h 45m
3 stops
BOS5:15 pmBoston Logan Intl
$2,774

Emirates flights from Massachusetts to Region of Siem Reap

Our best Emirates deals on Massachusetts to Region of Siem Reap flight tickets
Emirates
May 23
BOS11:05 pmBoston Logan Intl
50h 15m
2 stops
SAI12:20 pmSiem Reap–Angkor Intl
May 30
SAI11:50 pmSiem Reap–Angkor Intl
49h 20m
2 stops
BOS2:10 pmBoston Logan Intl
$1,404
Emirates
May 22
BOS11:05 pmBoston Logan Intl
26h 15m
2 stops
SAI12:20 pmSiem Reap–Angkor Intl
May 30
SAI11:50 pmSiem Reap–Angkor Intl
49h 20m
2 stops
BOS2:10 pmBoston Logan Intl
$1,448
Emirates
May 23
BOS11:05 pmBoston Logan Intl
26h 15m
2 stops
SAI12:20 pmSiem Reap–Angkor Intl
May 30
SAI11:50 pmSiem Reap–Angkor Intl
49h 57m
3 stops
BOS2:47 pmBoston Logan Intl
$1,843

momondo Fare Finder

 
Customize your flight search to find flights from Massachusetts to Region of Siem Reap that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated May 8, 2026.
Use the filters below to find and compare flights from Massachusetts to Siem Reap that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

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

7:20 pm-2:40 pm

2 stops54h 20m

$1,242
Quickest round-trip

BostonSiem Reap

BOS - SAI

BOSSAI

Boston Logan Intl

Sun 5/17

11:05 pm-9:30 pm

2 stops35h 25m

Siem Reap–Angkor Intl

Thu 5/21

11:50 pm-2:10 pm

2 stops25h 20m

$1,303

BostonSiem Reap

BOS - SAI

BOSSAI

Boston Logan Intl

Sun 5/17

11:05 pm-9:30 pm

2 stops35h 25m

Siem Reap–Angkor Intl

Mon 5/25

1:05 pm-2:10 pm

2 stops36h 05m

$1,304

BostonSiem Reap

BOS - SAI

BOSSAI

Boston Logan Intl

Sun 5/17

11:05 pm-9:30 pm

2 stops35h 25m

Siem Reap–Angkor Intl

Wed 5/20

1:05 pm-2:10 pm

2 stops60h 05m

$1,327

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

$1,328

BostonSiem Reap

BOS - SAI

BOSSAI

Boston Logan Intl

Sun 5/17

11:05 pm-9:30 pm

2 stops35h 25m

Siem Reap–Angkor Intl

Tue 5/19

11:50 pm-2:10 pm

2 stops49h 20m

$1,342

BostonSiem Reap

BOS - SAI

BOSSAI

Boston Logan Intl

Sun 5/17

11:05 pm-9:30 pm

2 stops35h 25m

Siem Reap–Angkor Intl

Sun 5/24

1:05 pm-2:10 pm

2 stops60h 05m

$1,377

BostonSiem Reap

BOS - SAI

BOSSAI

Boston Logan Intl

Sun 5/17

11:05 pm-9:30 pm

2 stops35h 25m

Siem Reap–Angkor Intl

Sat 5/23

11:50 pm-2:10 pm

2 stops49h 20m

$1,392

BostonSiem Reap

BOS - SAI

BOSSAI

Boston Logan Intl

Sat 5/23

11:05 pm-12:20 pm

2 stops50h 15m

Siem Reap–Angkor Intl

Sat 5/30

11:50 pm-2:10 pm

2 stops49h 20m

$1,404

BostonSiem Reap

BOS - SAI

BOSSAI

Boston Logan Intl

Fri 5/22

11:05 pm-12:20 pm

2 stops26h 15m

Siem Reap–Angkor Intl

Sat 5/30

11:50 pm-2:10 pm

2 stops49h 20m

$1,448

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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Cheap Massachusetts to Region of Siem Reap flight deals and tips

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

Fastest flight time

31h 50m

Direct flights

None
The fastest flight from Massachusetts to Region of Siem Reap takes 31h 50m
There are no direct flights from Massachusetts to Region of Siem Reap. There are no popular flight routes from Massachusetts to Region of Siem Reap.
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Frequently asked questions about flying from Massachusetts to Siem Reap

  • When did momondo last update prices for flights from Massachusetts to Siem Reap?

    Prices for flights from Massachusetts to Siem Reap refresh daily.

  • How old do you have to be to fly from Massachusetts to Siem Reap?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Massachusetts to Siem Reap.

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

    The travel and health documents required for your trip to Siem Reap can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Siem Reap. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Frequently asked questions about flying from Massachusetts to Siem Reap

  • How do I get Price Alerts for flights from Massachusetts to Region of Siem Reap?

    Confirm your travel details to search for the latest offers for flights from Massachusetts to Region of Siem Reap. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from Massachusetts to Region of Siem Reap with momondo?

    Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

  • How does momondo find its flight prices?

    We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Why use momondo?

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

Finding the right flight to Siem Reap from Massachusetts is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Siem Reap quick and easy, saving you time and money.

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

Yes. momondo enables you to select and highlight flights to Siem Reap from Massachusetts with this policy.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Massachusetts to Siem Reap.

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

Yes. momondo can track prices for Massachusetts to Siem Reap flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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