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Cheap flights from the United States to Siem Reap from $274

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United States to Siem Reap departing on 4/3. 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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Find the cheapest flights from the United States to Siem Reap

Recent round-trip flight deals from the United States to Siem Reap

Enter your travel dates to find the best prices.
Singapore Airlines Logo
11:00 am - 9:40 am
SFO
-
SAI
32h 40m
1 stop
Singapore Airlines Logo
10:30 am - 9:10 am
SAI
-
SFO
36h 40m
1 stop
$613Singapore Airlines
Thu, Apr 30 - Thu, May 14
Singapore Airlines Logo
11:30 pm - 3:10 pm
LAX
-
SAI
25h 40m
1 stop
Singapore Airlines Logo
10:30 am - 9:20 pm
SAI
-
LAX
24h 50m
1 stop
$628Singapore Airlines
Wed, Apr 29 - Wed, May 6
Singapore Airlines Logo
8:55 pm - 3:10 pm
LAX
-
SAI
28h 15m
1 stop
Singapore Airlines Logo
10:30 am - 9:20 pm
SAI
-
LAX
24h 50m
1 stop
$648Singapore Airlines
Fri, Apr 17 - Sun, Apr 26
Multiple Airlines Logo
11:30 pm - 3:10 pm
LAX
-
SAI
25h 40m
1 stop
Multiple Airlines Logo
4:00 pm - 1:43 pm
SAI
-
LAX
35h 43m
2 stops
$704Multiple Airlines
Wed, Apr 29 - Wed, May 6
Multiple Airlines Logo
11:38 am - 9:40 am
SEA
-
SAI
32h 02m
2 stops
Multiple Airlines Logo
10:30 am - 8:45 am
SAI
-
SEA
36h 15m
1 stop
$723Multiple Airlines
Wed, May 20 - Wed, May 27
China Eastern Logo
12:30 pm - 8:10 pm
LAX
-
SAI
41h 40m
2 stops
China Eastern Logo
9:10 pm - 10:05 am
SAI
-
LAX
50h 55m
3 stops
$784China Eastern
Sat, Apr 11 - Fri, Apr 17
Vietnam Airlines Logo
10:50 pm - 6:40 pm
SFO
-
SAI
29h 50m
1 stop
Vietnam Airlines Logo
7:40 pm - 5:55 pm
SAI
-
SFO
36h 15m
1 stop
$797Vietnam Airlines
Wed, Apr 1 - Wed, Apr 8
Vietnam Airlines Logo
10:50 pm - 6:40 pm
SFO
-
SAI
29h 50m
1 stop
Vietnam Airlines Logo
7:40 pm - 5:55 pm
SAI
-
SFO
36h 15m
1 stop
$811Vietnam Airlines
Sat, Apr 4 - Tue, Apr 14
Qatar Airways Logo
7:00 am - 12:15 pm
MSP
-
SAI
41h 15m
3 stops
Qatar Airways Logo
7:25 pm - 10:21 pm
SAI
-
MSP
38h 56m
3 stops
$1,800Qatar Airways
Wed, Apr 8 - Fri, Apr 24
Qatar Airways Logo
6:03 am - 9:00 am
MSP
-
SAI
38h 57m
3 stops
Qatar Airways Logo
7:25 pm - 10:21 pm
SAI
-
MSP
38h 56m
3 stops
$1,815Qatar Airways
Tue, Apr 7 - Fri, Apr 24

Vietnam Airlines flights from United States to Siem Reap

Our best Vietnam Airlines deals on United States to Siem Reap flight tickets
Vietnam Airlines
Apr 1
SFO10:50 pmSan Francisco
29h 50m
1 stop
SAI6:40 pmSiem Reap–Angkor Intl
Apr 8
SAI7:40 pmSiem Reap–Angkor Intl
36h 15m
1 stop
SFO5:55 pmSan Francisco
$797
Vietnam Airlines
Apr 4
SFO10:50 pmSan Francisco
29h 50m
1 stop
SAI6:40 pmSiem Reap–Angkor Intl
Apr 14
SAI7:40 pmSiem Reap–Angkor Intl
36h 15m
1 stop
SFO5:55 pmSan Francisco
$811
Vietnam Airlines
Apr 5
SFO10:50 pmSan Francisco
29h 50m
1 stop
SAI6:40 pmSiem Reap–Angkor Intl
Apr 14
SAI7:40 pmSiem Reap–Angkor Intl
36h 15m
1 stop
SFO5:55 pmSan Francisco
$812

Emirates flights from United States to Siem Reap

Our best Emirates deals on United States to Siem Reap flight tickets
Emirates
Feb 27
JFK10:20 pmNew York John F Kennedy Intl
56h 20m
3 stops
SAI6:40 pmSiem Reap–Angkor Intl
Mar 31
SAI11:50 pmSiem Reap–Angkor Intl
25h 35m
2 stops
JFK2:25 pmNew York John F Kennedy Intl
$1,108
Emirates
Mar 21
JFK11:00 pmNew York John F Kennedy Intl
56h 45m
2 stops
SAI6:45 pmSiem Reap–Angkor Intl
Mar 28
SAI11:50 pmSiem Reap–Angkor Intl
44h 00m
2 stops
JFK8:50 amNew York John F Kennedy Intl
$1,183
Emirates
Feb 27
JFK11:00 pmNew York John F Kennedy Intl
55h 40m
2 stops
SAI6:40 pmSiem Reap–Angkor Intl
Mar 31
SAI11:50 pmSiem Reap–Angkor Intl
25h 35m
2 stops
JFK2:25 pmNew York John F Kennedy Intl
$1,195

momondo Fare Finder

 
Customize your flight search to find flights from United States 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 February 7, 2026.
Use the filters below to find and compare flights from the United States to Siem Reap that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoSiem Reap

SFO - SAI

SFOSAI

San Francisco

Thu 4/30

11:00 am-9:40 am

1 stop32h 40m

Siem Reap–Angkor Intl

Thu 5/14

10:30 am-9:10 am

1 stop36h 40m

$613

Los AngelesSiem Reap

LAX - SAI

LAXSAI

Los Angeles

Wed 4/29

11:30 pm-3:10 pm

1 stop25h 40m

Siem Reap–Angkor Intl

Wed 5/6

10:30 am-9:20 pm

1 stop24h 50m

$628

Los AngelesSiem Reap

LAX - SAI

LAXSAI

Los Angeles

Fri 4/17

8:55 pm-3:10 pm

1 stop28h 15m

Siem Reap–Angkor Intl

Sun 4/26

10:30 am-9:20 pm

1 stop24h 50m

$648

Los AngelesSiem Reap

LAX - SAI

LAXSAI

Los Angeles

Wed 4/29

11:30 pm-3:10 pm

1 stop25h 40m

Siem Reap–Angkor Intl

Wed 5/6

4:00 pm-1:43 pm

2 stops35h 43m

$704

SeattleSiem Reap

SEA - SAI

SEASAI

Seattle/Tacoma Intl

Wed 5/20

11:38 am-9:40 am

2 stops32h 02m

Siem Reap–Angkor Intl

Wed 5/27

10:30 am-8:45 am

1 stop36h 15m

$723

Los AngelesSiem Reap

LAX - SAI

LAXSAI

Los Angeles

Sat 4/11

12:30 pm-8:10 pm

2 stops41h 40m

Siem Reap–Angkor Intl

Fri 4/17

9:10 pm-10:05 am

3 stops50h 55m

$784

San FranciscoSiem Reap

SFO - SAI

SFOSAI

San Francisco

Wed 4/1

10:50 pm-6:40 pm

1 stop29h 50m

Siem Reap–Angkor Intl

Wed 4/8

7:40 pm-5:55 pm

1 stop36h 15m

$797

San FranciscoSiem Reap

SFO - SAI

SFOSAI

San Francisco

Sat 4/4

10:50 pm-6:40 pm

1 stop29h 50m

Siem Reap–Angkor Intl

Tue 4/14

7:40 pm-5:55 pm

1 stop36h 15m

$811

MinneapolisSiem Reap

MSP - SAI

MSPSAI

Minneapolis St Paul

Wed 4/8

7:00 am-12:15 pm

3 stops41h 15m

Siem Reap–Angkor Intl

Fri 4/24

7:25 pm-10:21 pm

3 stops38h 56m

$1,800

MinneapolisSiem Reap

MSP - SAI

MSPSAI

Minneapolis St Paul

Tue 4/7

6:03 am-9:00 am

3 stops38h 57m

Siem Reap–Angkor Intl

Fri 4/24

7:25 pm-10:21 pm

3 stops38h 56m

$1,815

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from United States to 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

Can stopping save me money on United States to Siem Reap flights?

You could potentially save up to 44% on your flight if you consider stops on a United States to Siem Reap flight.

Cheap United States to Siem Reap flight deals and tips

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

Fastest flight time

24h 10m

Direct flights

None
The fastest flight from United States to Siem Reap takes 24h 10m
There are no direct flights from United States to Siem Reap. There are no popular flight routes from United States to Siem Reap.
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  • When did momondo last update prices for flights from United States to Siem Reap–Angkor Intl Airport?

    Prices for flights from United States to Siem Reap–Angkor Intl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from United States to Siem Reap–Angkor Intl Airport?

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from United States to Siem Reap–Angkor Intl Airport.

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

    The travel and health documents you'll need for your trip to Siem Reap–Angkor Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Siem Reap–Angkor Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from United States to Siem Reap

Compare and see reviews for airlines that fly from United States to Siem Reap with momondo
Airline
Rating
Free Cancellation
Price
Singapore AirlinesPriceFrom $628Free CancellationRating
8.2
1,451 reviews
Search Singapore Airlines flights
Vietnam AirlinesPriceFrom $789Free CancellationRating
7.6
224 reviews
Search Vietnam Airlines flights

Why use momondo?

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

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

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

Yes. All flights to Siem Reap from United States on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Siem Reap from United States.

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

If you are not ready to book a flight from United States to Siem Reap now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Siem Reap and let you know when they change.

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