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Cheap flights from Siem Reap to San Francisco from $514

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Siem Reap to San Francisco departing on 9/22. 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 Siem Reap to San Francisco

Cheap round-trip flights

Enter your travel dates to find the best prices.
Vietnam Airlines Logo
7:10 pm - 5:55 pmSAI  Siem Reap–Angkor Intl-SFO San Francisco
36h 45m1 stop Ho Chi Minh City
Vietnam Airlines Logo
10:50 pm - 6:20 pmSFO  San Francisco-SAI Siem Reap–Angkor Intl
29h 30m1 stop Ho Chi Minh City
$937Vietnam Airlines
Fri, Aug 28 - Sat, Aug 29
Vietnam Airlines Logo
7:15 pm - 5:55 pmSAI  Siem Reap–Angkor Intl-SFO San Francisco
36h 40m1 stop Ho Chi Minh City
Vietnam Airlines Logo
10:50 pm - 6:20 pmSFO  San Francisco-SAI Siem Reap–Angkor Intl
29h 30m1 stop Ho Chi Minh City
$978Vietnam Airlines
Tue, Aug 25 - Sat, Sep 12
Multiple Airlines Logo
9:40 am - 9:00 pmSAI  Siem Reap–Angkor Intl-SFO San Francisco
25h 20m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl
Multiple Airlines Logo
12:50 am - 6:55 pmSFO  San Francisco-SAI Siem Reap–Angkor Intl
28h 05m2 stops Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi
$1,006Multiple Airlines
Fri, Aug 28 - Fri, Aug 28
Multiple Airlines Logo
9:55 am - 6:40 pmSAI  Siem Reap–Angkor Intl-SFO San Francisco
23h 45m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl
Multiple Airlines Logo
11:30 pm - 6:45 pmSFO  San Francisco-SAI Siem Reap–Angkor Intl
28h 15m2 stops Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi
$1,069Multiple Airlines
Fri, Dec 18 - Mon, Dec 28
Multiple Airlines Logo
12:55 pm - 9:00 pmSAI  Siem Reap–Angkor Intl-SFO San Francisco
22h 05m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl
Multiple Airlines Logo
10:50 pm - 6:20 pmSFO  San Francisco-SAI Siem Reap–Angkor Intl
29h 30m1 stop Ho Chi Minh City
$1,076Multiple Airlines
Fri, Aug 28 - Sat, Aug 29
Multiple Airlines Logo
9:55 am - 3:00 pmSAI  Siem Reap–Angkor Intl-SFO San Francisco
20h 05m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl
Multiple Airlines Logo
11:30 pm - 4:10 pmSFO  San Francisco-SAI Siem Reap–Angkor Intl
25h 40m3 stops Taipei City Taiwan Taoyuan Intl Hanoi Noibai Luang Prabang
$1,134Multiple Airlines
Fri, Dec 18 - Mon, Dec 28
Vietnam Airlines Logo
6:40 pm - 5:00 pmSAI  Siem Reap–Angkor Intl-SFO San Francisco
37h 20m1 stop Ho Chi Minh City
Vietnam Airlines Logo
9:10 pm - 7:40 pmSFO  San Francisco-SAI Siem Reap–Angkor Intl
55h 30m2 stops Ho Chi Minh City Hanoi Noibai
$1,137Vietnam Airlines
Fri, Nov 20 - Sat, Dec 26
Vietnam Airlines Logo
6:05 pm - 5:55 pmSAI  Siem Reap–Angkor Intl-SFO San Francisco
37h 50m2 stops Hanoi Noibai Ho Chi Minh City
Vietnam Airlines Logo
10:50 pm - 6:20 pmSFO  San Francisco-SAI Siem Reap–Angkor Intl
29h 30m1 stop Ho Chi Minh City
$1,159Vietnam Airlines
Tue, Aug 25 - Wed, Sep 16
Vietnam Airlines Logo
6:05 pm - 5:55 pmSAI  Siem Reap–Angkor Intl-SFO San Francisco
61h 50m2 stops Hanoi Noibai Ho Chi Minh City
Vietnam Airlines Logo
10:50 pm - 6:20 pmSFO  San Francisco-SAI Siem Reap–Angkor Intl
29h 30m1 stop Ho Chi Minh City
$1,160Vietnam Airlines
Mon, Aug 24 - Wed, Sep 16
Vietnam Airlines Logo
7:20 pm - 5:55 pmSAI  Siem Reap–Angkor Intl-SFO San Francisco
60h 35m2 stops Phnom Penh Techo Intl Ho Chi Minh City
Vietnam Airlines Logo
10:50 pm - 6:20 pmSFO  San Francisco-SAI Siem Reap–Angkor Intl
29h 30m1 stop Ho Chi Minh City
$1,184Vietnam Airlines
Thu, Aug 27 - Thu, Sep 17

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Singapore Airlines flights from Region of Siem Reap to San Francisco

Our best Singapore Airlines deals on Region of Siem Reap to San Francisco flight tickets
Singapore Airlines
Dec 18
SAI10:45 amSiem Reap–Angkor Intl
36h 05m
1 stop
SFO7:50 amSan Francisco
Dec 28
SFO9:40 amSan Francisco
33h 15m
1 stop
SAI9:55 amSiem Reap–Angkor Intl
$1,205
Singapore Airlines
Aug 25
SAI10:30 amSiem Reap–Angkor Intl
37h 20m
1 stop
SFO9:50 amSan Francisco
Sep 13
SFO11:45 amSan Francisco
31h 55m
1 stop
SAI9:40 amSiem Reap–Angkor Intl
$2,282
Singapore Airlines
Aug 25
SAI10:30 amSiem Reap–Angkor Intl
37h 20m
1 stop
SFO9:50 amSan Francisco
Sep 18
SFO11:45 amSan Francisco
31h 55m
1 stop
SAI9:40 amSiem Reap–Angkor Intl
$2,986

Philippine Airlines flights from Region of Siem Reap to San Francisco

Our best Philippine Airlines deals on Region of Siem Reap to San Francisco flight tickets
Philippine Airlines
Aug 27
SAI9:40 amSiem Reap–Angkor Intl
49h 30m
2 stops
SFO9:10 pmSan Francisco
Sep 13
SFO12:30 amSan Francisco
28h 25m
2 stops
SAI6:55 pmSiem Reap–Angkor Intl
$1,734
Philippine Airlines
Aug 25
SAI7:35 pmSiem Reap–Angkor Intl
39h 35m
2 stops
SFO9:10 pmSan Francisco
Sep 17
SFO12:30 amSan Francisco
28h 25m
2 stops
SAI6:55 pmSiem Reap–Angkor Intl
$1,754
Philippine Airlines
Aug 26
SAI7:35 pmSiem Reap–Angkor Intl
63h 35m
2 stops
SFO9:10 pmSan Francisco
Sep 15
SFO12:30 amSan Francisco
28h 25m
2 stops
SAI6:55 pmSiem Reap–Angkor Intl
$1,769

momondo Fare Finder

 
Customize your flight search to find flights from Region of Siem Reap to San Francisco 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 August 14, 2026.
Use the filters below to find and compare flights from Siem Reap to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Siem ReapSan Francisco

SAI Siem Reap–Angkor Intl - SFO San Francisco

SAISFO

Siem Reap–Angkor Intl

Fri 8/28

7:10 pm-5:55 pm

1 stop36h 45m

San Francisco

Sat 8/29

10:50 pm-6:20 pm

1 stop29h 30m

$937

Siem ReapSan Francisco

SAI Siem Reap–Angkor Intl - SFO San Francisco

SAISFO

Siem Reap–Angkor Intl

Tue 8/25

7:15 pm-5:55 pm

1 stop36h 40m

San Francisco

Sat 9/12

10:50 pm-6:20 pm

1 stop29h 30m

$978

Siem ReapSan Francisco

SAI Siem Reap–Angkor Intl - SFO San Francisco

SAISFO

Siem Reap–Angkor Intl

Fri 8/28

9:40 am-9:00 pm

2 stops25h 20m

San Francisco

Fri 8/28

12:50 am-6:55 pm

2 stops28h 05m

$1,006

Siem ReapSan Francisco

SAI Siem Reap–Angkor Intl - SFO San Francisco

SAISFO

Siem Reap–Angkor Intl

Fri 12/18

9:55 am-6:40 pm

2 stops23h 45m

San Francisco

Mon 12/28

11:30 pm-6:45 pm

2 stops28h 15m

$1,069

Siem ReapSan Francisco

SAI Siem Reap–Angkor Intl - SFO San Francisco

SAISFO

Siem Reap–Angkor Intl

Fri 8/28

12:55 pm-9:00 pm

2 stops22h 05m

San Francisco

Sat 8/29

10:50 pm-6:20 pm

1 stop29h 30m

$1,076
Quickest round-trip

Siem ReapSan Francisco

SAI Siem Reap–Angkor Intl - SFO San Francisco

SAISFO

Siem Reap–Angkor Intl

Fri 12/18

9:55 am-3:00 pm

2 stops20h 05m

San Francisco

Mon 12/28

11:30 pm-4:10 pm

3 stops25h 40m

$1,134

Siem ReapSan Francisco

SAI Siem Reap–Angkor Intl - SFO San Francisco

SAISFO

Siem Reap–Angkor Intl

Fri 11/20

6:40 pm-5:00 pm

1 stop37h 20m

San Francisco

Sat 12/26

9:10 pm-7:40 pm

2 stops55h 30m

$1,137

Siem ReapSan Francisco

SAI Siem Reap–Angkor Intl - SFO San Francisco

SAISFO

Siem Reap–Angkor Intl

Tue 8/25

6:05 pm-5:55 pm

2 stops37h 50m

San Francisco

Wed 9/16

10:50 pm-6:20 pm

1 stop29h 30m

$1,159

Siem ReapSan Francisco

SAI Siem Reap–Angkor Intl - SFO San Francisco

SAISFO

Siem Reap–Angkor Intl

Mon 8/24

6:05 pm-5:55 pm

2 stops61h 50m

San Francisco

Wed 9/16

10:50 pm-6:20 pm

1 stop29h 30m

$1,160

Siem ReapSan Francisco

SAI Siem Reap–Angkor Intl - SFO San Francisco

SAISFO

Siem Reap–Angkor Intl

Thu 8/27

7:20 pm-5:55 pm

2 stops60h 35m

San Francisco

Thu 9/17

10:50 pm-6:20 pm

1 stop29h 30m

$1,184

Flights are sorted by cheapest round-trip flights first.

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

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 Region of Siem Reap to San Francisco flights?

You could potentially save up to 8% on your flight if you consider stops on a Region of Siem Reap to San Francisco flight.

Cheap Region of Siem Reap to San Francisco flight deals and tips

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

Fastest flight time

23h 45m

Direct flights

None
The fastest flight from Region of Siem Reap to San Francisco takes 23h 45m
There are no direct flights from Region of Siem Reap to San Francisco. There are no popular flight routes from Region of Siem Reap to San Francisco.
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Frequently asked questions about flying from Siem Reap to San Francisco

  • When did momondo last update prices for flights from Siem Reap to San Francisco Airport?

    Prices for flights from Siem Reap to San Francisco Airport refresh daily.

  • How old do you have to be to fly from Siem Reap to San Francisco 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 Siem Reap to San Francisco Airport.

  • What documentation or ID do you need to fly to San Francisco Airport?

    The required travel and health documents for your San Francisco Airport 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 San Francisco Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
Carmel-by-the-Sea
Modesto
South San Francisco
Fremont
Berkeley
Bodega Bay
Hayward
Walnut Creek
Santa Clara
Vallejo
Roseville
Sonoma
Salinas
Sunnyvale
Milpitas
Daly City
Burlingame
Marina
Palo Alto

Why use momondo?

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

It is quick and easy to find Siem Reap to San Francisco flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to San Francisco that suits you.

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

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

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

Once you have performed a search for Siem Reap to San Francisco flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are simply researching potential flights to San Francisco, momondo offers a useful price alert feature which will track prices for flights to San Francisco from Siem Reap and alert you when they change.

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