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Cheap flights from Massachusetts to Siem Reap from $639

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 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.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Massachusetts to Siem Reap

Cheap round-trip flights

Enter your travel dates to find the best prices.
Emirates Logo
11:05 pm - 12:15 pm
BOS
-
SAI
26h 10m
2 stops
Emirates Logo
12:55 pm - 2:10 pm
SAI
-
BOS
36h 15m
2 stops
$1,310Emirates
Wed, Sep 30 - Fri, Oct 9
Singapore Airlines Logo
6:15 am - 9:40 am
BOS
-
SAI
40h 25m
2 stops
Singapore Airlines Logo
4:00 pm - 4:59 pm
SAI
-
BOS
35h 59m
3 stops
$1,478Singapore Airlines
Wed, Sep 30 - Fri, Oct 9
Multiple Airlines Logo
9:40 pm - 6:55 pm
BOS
-
SAI
34h 15m
2 stops
Multiple Airlines Logo
7:35 pm - 5:40 pm
SAI
-
BOS
33h 05m
3 stops
$1,482Multiple Airlines
Wed, Sep 30 - Fri, Oct 9
Etihad Airways Logo
4:25 pm - 5:50 pm
BOS
-
SAI
38h 25m
2 stops
Etihad Airways Logo
3:10 pm - 2:40 pm
SAI
-
BOS
58h 30m
2 stops
$1,540Etihad Airways
Mon, Aug 3 - Fri, Aug 21
Lufthansa Logo
8:05 pm - 6:55 pm
BOS
-
SAI
35h 50m
3 stops
Lufthansa Logo
7:35 pm - 5:40 pm
SAI
-
BOS
33h 05m
3 stops
$1,566Lufthansa
Wed, Sep 30 - Fri, Oct 9
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
$1,631Multiple Airlines
Mon, Aug 3 - Fri, Aug 21
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
$1,632Multiple Airlines
Mon, Aug 3 - Fri, Aug 21
Multiple Airlines Logo
6:55 pm - 6:45 pm
BOS
-
SAI
35h 50m
2 stops
Multiple Airlines Logo
4:45 pm - 1:45 pm
SAI
-
BOS
33h 00m
2 stops
$1,645Multiple Airlines
Tue, Dec 1 - Thu, Dec 31
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
$1,653Multiple Airlines
Mon, Aug 3 - Fri, Aug 21
Multiple Airlines Logo
10:00 pm - 12:15 pm
BOS
-
SAI
27h 15m
2 stops
Multiple Airlines Logo
7:35 pm - 3:15 pm
SAI
-
BOS
30h 40m
2 stops
$1,684Multiple Airlines
Wed, Jul 8 - Wed, Jul 15

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Qatar Airways flights from Massachusetts to Region of Siem Reap

Our best Qatar Airways deals on Massachusetts to Region of Siem Reap flight tickets
Qatar Airways
Jul 8
BOS7:04 pmBoston Logan Intl
30h 11m
3 stops
SAI12:15 pmSiem Reap–Angkor Intl
Jul 15
SAI7:35 pmSiem Reap–Angkor Intl
30h 40m
2 stops
BOS3:15 pmBoston Logan Intl
$1,987
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
$1,999
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
$2,201

Emirates flights from Massachusetts to Region of Siem Reap

Our best Emirates deals on Massachusetts to Region of Siem Reap flight tickets
Emirates
Sep 30
BOS11:05 pmBoston Logan Intl
26h 10m
2 stops
SAI12:15 pmSiem Reap–Angkor Intl
Oct 9
SAI12:55 pmSiem Reap–Angkor Intl
36h 15m
2 stops
BOS2:10 pmBoston Logan Intl
$1,310
Emirates
Jul 26
BOS11:05 pmBoston Logan Intl
35h 25m
2 stops
SAI9:30 pmSiem Reap–Angkor Intl
Aug 8
SAI11:50 pmSiem Reap–Angkor Intl
49h 20m
2 stops
BOS2:10 pmBoston Logan Intl
$1,535
Emirates
Jul 26
BOS11:05 pmBoston Logan Intl
35h 25m
2 stops
SAI9:30 pmSiem Reap–Angkor Intl
Aug 8
SAI11:50 pmSiem Reap–Angkor Intl
53h 32m
3 stops
BOS6:22 pmBoston Logan Intl
$1,835

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 June 22, 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

Wed 9/30

11:05 pm-12:15 pm

2 stops26h 10m

Siem Reap–Angkor Intl

Fri 10/9

12:55 pm-2:10 pm

2 stops36h 15m

$1,310

BostonSiem Reap

BOS - SAI

BOSSAI

Boston Logan Intl

Wed 9/30

6:15 am-9:40 am

2 stops40h 25m

Siem Reap–Angkor Intl

Fri 10/9

4:00 pm-4:59 pm

3 stops35h 59m

$1,478

BostonSiem Reap

BOS - SAI

BOSSAI

Boston Logan Intl

Wed 9/30

9:40 pm-6:55 pm

2 stops34h 15m

Siem Reap–Angkor Intl

Fri 10/9

7:35 pm-5:40 pm

3 stops33h 05m

$1,482

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

3:10 pm-2:40 pm

2 stops58h 30m

$1,540

BostonSiem Reap

BOS - SAI

BOSSAI

Boston Logan Intl

Wed 9/30

8:05 pm-6:55 pm

3 stops35h 50m

Siem Reap–Angkor Intl

Fri 10/9

7:35 pm-5:40 pm

3 stops33h 05m

$1,566

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

$1,631

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

$1,632

BostonSiem Reap

BOS - SAI

BOSSAI

Boston Logan Intl

Tue 12/1

6:55 pm-6:45 pm

2 stops35h 50m

Siem Reap–Angkor Intl

Thu 12/31

4:45 pm-1:45 pm

2 stops33h 00m

$1,645

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

$1,653
Quickest round-trip

BostonSiem Reap

BOS - SAI

BOSSAI

Boston Logan Intl

Wed 7/8

10:00 pm-12:15 pm

2 stops27h 15m

Siem Reap–Angkor Intl

Wed 7/15

7:35 pm-3:15 pm

2 stops30h 40m

$1,684

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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

26h 10m

Direct flights

None
The fastest flight from Massachusetts to Region of Siem Reap takes 26h 10m
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.
Search flight deals

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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