Cheap flights from Massachusetts to Siem Reap from $845

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 5/31. 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
0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
4:25 pm - 5:50 pm
BOS
-
SAI
38h 25m
2 stops
Multiple Airlines Logo
2:50 pm - 2:40 pm
SAI
-
BOS
34h 50m
2 stops
$1,085Multiple Airlines
Sun, Apr 19 - Tue, Apr 28
Multiple Airlines Logo
4:25 pm - 5:50 pm
BOS
-
SAI
38h 25m
2 stops
Multiple Airlines Logo
4:55 pm - 2:40 pm
SAI
-
BOS
32h 45m
3 stops
$1,322Multiple Airlines
Sun, Apr 19 - Tue, Apr 28
Multiple Airlines Logo
4:25 pm - 10:50 am
BOS
-
SAI
31h 25m
2 stops
Multiple Airlines Logo
2:50 pm - 2:40 pm
SAI
-
BOS
34h 50m
2 stops
$1,361Multiple Airlines
Sat, Jun 13 - Thu, Jun 25
Multiple Airlines Logo
4:25 pm - 2:20 pm
BOS
-
SAI
34h 55m
2 stops
Multiple Airlines Logo
2:50 pm - 2:40 pm
SAI
-
BOS
34h 50m
2 stops
$1,378Multiple Airlines
Sat, Jun 13 - Thu, Jun 25
Etihad Airways Logo
4:25 pm - 6:45 pm
BOS
-
SAI
39h 20m
2 stops
Etihad Airways Logo
9:40 am - 2:40 pm
SAI
-
BOS
40h 00m
2 stops
$1,450Etihad Airways
Mon, Jun 1 - Sat, Jun 13
Multiple Airlines Logo
10:00 pm - 12:15 pm
BOS
-
SAI
27h 15m
2 stops
Multiple Airlines Logo
7:30 pm - 3:15 pm
SAI
-
BOS
30h 45m
2 stops
$1,508Multiple Airlines
Sat, Jul 18 - Sat, Jul 25
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
$1,513Emirates
Mon, Aug 3 - Fri, Aug 21
Emirates Logo
11:05 pm - 12:15 pm
BOS
-
SAI
50h 10m
2 stops
Emirates Logo
12:55 pm - 2:10 pm
SAI
-
BOS
36h 15m
2 stops
$1,549Emirates
Mon, Aug 3 - Fri, Aug 21
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
$1,581Emirates
Sat, Jul 18 - Sat, Jul 25
Multiple Airlines Logo
4:25 pm - 2:50 pm
BOS
-
SAI
35h 25m
3 stops
Multiple Airlines Logo
4:55 pm - 2:40 pm
SAI
-
BOS
32h 45m
3 stops
$1,582Multiple Airlines
Sun, Apr 19 - Tue, Apr 28

Singapore Airlines flights from Massachusetts to Siem Reap

Our best Singapore Airlines deals on Massachusetts to Siem Reap flight tickets
Singapore Airlines
Jun 13
BOS3:55 pmBoston Logan Intl
30h 45m
3 stops
SAI9:40 amSiem Reap–Angkor Intl
Jun 24
SAI4:00 pmSiem Reap–Angkor Intl
42h 56m
3 stops
BOS11:56 pmBoston Logan Intl
$1,731
Singapore Airlines
Jun 13
BOS3:55 pmBoston Logan Intl
30h 45m
3 stops
SAI9:40 amSiem Reap–Angkor Intl
Jun 24
SAI4:00 pmSiem Reap–Angkor Intl
42h 18m
2 stops
BOS11:18 pmBoston Logan Intl
$1,802
Singapore Airlines
Aug 3
BOS12:43 pmBoston Logan Intl
33h 57m
3 stops
SAI9:40 amSiem Reap–Angkor Intl
Aug 21
SAI4:00 pmSiem Reap–Angkor Intl
42h 56m
3 stops
BOS11:56 pmBoston Logan Intl
$2,093

Etihad Airways flights from Massachusetts to Siem Reap

Our best Etihad Airways deals on Massachusetts to Siem Reap flight tickets
Etihad Airways
Jun 1
BOS4:25 pmBoston Logan Intl
39h 20m
2 stops
SAI6:45 pmSiem Reap–Angkor Intl
Jun 13
SAI9:40 amSiem Reap–Angkor Intl
40h 00m
2 stops
BOS2:40 pmBoston Logan Intl
$1,450
Etihad Airways
Apr 3
BOS4:25 pmBoston Logan Intl
39h 20m
2 stops
SAI6:45 pmSiem Reap–Angkor Intl
Apr 10
SAI9:40 amSiem Reap–Angkor Intl
64h 00m
2 stops
BOS2:40 pmBoston Logan Intl
$1,599

momondo Fare Finder

 
Customize your flight search to find flights from Massachusetts to 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 March 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

Sun 4/19

4:25 pm-5:50 pm

2 stops38h 25m

Siem Reap–Angkor Intl

Tue 4/28

2:50 pm-2:40 pm

2 stops34h 50m

$1,085

BostonSiem Reap

BOS - SAI

BOSSAI

Boston Logan Intl

Sun 4/19

4:25 pm-5:50 pm

2 stops38h 25m

Siem Reap–Angkor Intl

Tue 4/28

4:55 pm-2:40 pm

3 stops32h 45m

$1,322

BostonSiem Reap

BOS - SAI

BOSSAI

Boston Logan Intl

Sat 6/13

4:25 pm-10:50 am

2 stops31h 25m

Siem Reap–Angkor Intl

Thu 6/25

2:50 pm-2:40 pm

2 stops34h 50m

$1,361

BostonSiem Reap

BOS - SAI

BOSSAI

Boston Logan Intl

Sat 6/13

4:25 pm-2:20 pm

2 stops34h 55m

Siem Reap–Angkor Intl

Thu 6/25

2:50 pm-2:40 pm

2 stops34h 50m

$1,378

BostonSiem Reap

BOS - SAI

BOSSAI

Boston Logan Intl

Mon 6/1

4:25 pm-6:45 pm

2 stops39h 20m

Siem Reap–Angkor Intl

Sat 6/13

9:40 am-2:40 pm

2 stops40h 00m

$1,450
Quickest round-trip

BostonSiem Reap

BOS - SAI

BOSSAI

Boston Logan Intl

Sat 7/18

10:00 pm-12:15 pm

2 stops27h 15m

Siem Reap–Angkor Intl

Sat 7/25

7:30 pm-3:15 pm

2 stops30h 45m

$1,508

BostonSiem Reap

BOS - SAI

BOSSAI

Boston Logan Intl

Mon 8/3

11:05 pm-12:15 pm

2 stops26h 10m

Siem Reap–Angkor Intl

Fri 8/21

12:55 pm-2:10 pm

2 stops36h 15m

$1,513

BostonSiem Reap

BOS - SAI

BOSSAI

Boston Logan Intl

Mon 8/3

11:05 pm-12:15 pm

2 stops50h 10m

Siem Reap–Angkor Intl

Fri 8/21

12:55 pm-2:10 pm

2 stops36h 15m

$1,549

BostonSiem Reap

BOS - SAI

BOSSAI

Boston Logan Intl

Sat 7/18

11:05 pm-12:15 pm

2 stops26h 10m

Siem Reap–Angkor Intl

Sat 7/25

12:55 pm-2:10 pm

2 stops36h 15m

$1,581

BostonSiem Reap

BOS - SAI

BOSSAI

Boston Logan Intl

Sun 4/19

4:25 pm-2:50 pm

3 stops35h 25m

Siem Reap–Angkor Intl

Tue 4/28

4:55 pm-2:40 pm

3 stops32h 45m

$1,582

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first
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Cheap Massachusetts to Siem Reap flight deals and tips

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

Fastest flight time

26h 10m

Direct flights

None
The fastest flight from Massachusetts to Siem Reap takes 26h 10m
There are no direct flights from Massachusetts to Siem Reap. There are no popular flight routes from Massachusetts to Siem Reap.
  • When did momondo last update prices for flights from Massachusetts to Siem Reap–Angkor Intl Airport?

    Prices for flights from Massachusetts to Siem Reap–Angkor Intl Airport are updated daily.

  • How old do you have to be to fly from Massachusetts to Siem Reap–Angkor Intl Airport?

    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–Angkor Intl Airport.

  • What documentation or ID do you need to fly to Siem Reap–Angkor Intl Airport?

    The necessary travel and health documents for your Siem Reap–Angkor Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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

    Search flight deals from Massachusetts to Siem Reap. While viewing offers you’ll have the option to create a Price Alert.

  • How can I save money on flights from Massachusetts to 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 aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Massachusetts to Siem Reap. momondo saves you time and could save you money on your trip.

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 provides multiple filters to help you find the best flight to Siem Reap from Massachusetts. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes momondo offers price alerts on flights to Siem Reap from Massachusetts. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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1 adult
Tue 4/21
Tue 4/28

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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.