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Siem Reap

$364+ Cheap flights from Fremont, CA to Siem Reap, Cambodia (SAI)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/18. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SAI
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from Fremont to Siem Reap

Cheapest flights from Fremont to Siem Reap
Explore the most affordable flight options available from Fremont to Siem Reap. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This FlightHub deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/2611:00 am
SFO
-
SAI
1 stop32h 40m
Singapore Airlines
Thu 5/710:30 am
SAI
-
SFO
1 stop36h 40m
Singapore Airlines
Deal found 1/29$598
This oojo deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/111:00 am
SFO
-
SAI
1 stop38h 10m
Singapore Airlines
Thu 4/3010:30 am
SAI
-
SFO
1 stop36h 40m
Singapore Airlines
Deal found 1/28$653
This KAYAK deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/612:00 pm
SFO
-
SAI
2 stops42h 10m
China Eastern
Wed 4/159:10 pm
SAI
-
SFO
2 stops25h 55m
China Eastern
Deal found 1/27$737
This Gurufare deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/210:50 pm
SFO
-
SAI
1 stop29h 50m
Vietnam Airlines
Tue 4/147:40 pm
SAI
-
SFO
1 stop36h 15m
Vietnam Airlines
Deal found 1/27$796
This Vietnam Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Vietnam Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/110:50 pm
SFO
-
SAI
1 stop29h 50m
Vietnam Airlines
Wed 4/157:40 pm
SAI
-
SFO
1 stop36h 15m
Vietnam Airlines
Deal found 1/27$797
This Kiwi.com deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/210:50 pm
SFO
-
SAI
1 stop29h 50m
Vietnam Airlines
Fri 4/177:40 pm
SAI
-
SFO
1 stop36h 15m
Vietnam Airlines
Deal found 1/28$809
This FlightHub deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/412:00 pm
SFO
-
SAI
2 stops42h 10m
China Eastern
Fri 4/179:10 pm
SAI
-
SFO
2 stops25h 55m
China Eastern
Deal found 1/28$831
This Gurufare deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/410:50 pm
SFO
-
SAI
1 stop29h 50m
Vietnam Airlines
Tue 4/147:40 pm
SAI
-
SFO
1 stop36h 15m
Vietnam Airlines
Deal found 1/27$836
This Vietnam Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Vietnam Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/510:50 pm
SFO
-
SAI
1 stop29h 50m
Vietnam Airlines
Tue 4/217:40 pm
SAI
-
SFO
1 stop36h 15m
Vietnam Airlines
Deal found 1/28$837
This oojo deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/3011:00 am
SFO
-
SAI
1 stop32h 40m
Singapore Airlines
Thu 5/1410:30 am
SAI
-
SFO
2 stops37h 00m
Singapore Airlines
Deal found 1/28$848
This Kiwi.com deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/410:50 pm
SFO
-
SAI
1 stop29h 50m
Vietnam Airlines
Sat 4/187:40 pm
SAI
-
SFO
1 stop36h 15m
Vietnam Airlines
Deal found 1/28$849

Find flight deals from Fremont to Siem Reap

Keep the following information in mind while searching for Fremont to Siem Reap flight deals. Data was last updated January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$598
(FlightHub)

One-way from

$364
(oojo)

Popular in

May

Cheapest in

April

Average price

$869
Provider with most accurate pricing for San Francisco-Siem Reap–Angkor Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Francisco-Siem Reap–Angkor Intl flights.
Search Deals
From Fremont to Siem Reap–Angkor Intl
Search Deals
One-way flight from Fremont to Siem Reap–Angkor Intl
Search Deals
Highest demand for flights based on searches. 52% potential increase in price ($1,884 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 49% potential price decrease ($560 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Fremont 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, Cheapflights users made 2,558,603 searches. Data last updated January 29, 2026.
Use the filters below to find and compare flights from Fremont to Siem Reap that are best for you.

Fly from

Fremont

Fly to

Siem Reap

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

$598

San FranciscoSiem Reap

SFO - SAI

SFOSAI

San Francisco

Thu 4/2

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

$796

San FranciscoSiem Reap

SFO - SAI

SFOSAI

San Francisco

Thu 4/2

10:50 pm-6:40 pm

1 stop29h 50m

Siem Reap–Angkor Intl

Wed 4/15

7:40 pm-5:55 pm

1 stop36h 15m

$797

San FranciscoSiem Reap

SFO - SAI

SFOSAI

San Francisco

Mon 4/6

12:00 pm-8:10 pm

2 stops42h 10m

Siem Reap–Angkor Intl

Fri 4/17

9:10 pm-9:05 am

2 stops25h 55m

$837

San FranciscoSiem Reap

SFO - SAI

SFOSAI

San Francisco

Sat 4/4

10:50 pm-6:40 pm

1 stop29h 50m

Siem Reap–Angkor Intl

Wed 4/15

7:40 pm-5:55 pm

1 stop36h 15m

$837

San FranciscoSiem Reap

SFO - SAI

SFOSAI

San Francisco

Sun 4/5

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

$837

San FranciscoSiem Reap

SFO - SAI

SFOSAI

San Francisco

Wed 4/1

10:50 pm-6:40 pm

1 stop29h 50m

Siem Reap–Angkor Intl

Fri 4/17

7:40 pm-5:55 pm

1 stop36h 15m

$837

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 4/21

7:40 pm-5:55 pm

1 stop36h 15m

$837

San FranciscoSiem Reap

SFO - SAI

SFOSAI

San Francisco

Wed 4/1

10:50 pm-6:40 pm

1 stop29h 50m

Siem Reap–Angkor Intl

Sat 4/18

7:40 pm-5:55 pm

1 stop36h 15m

$837

San FranciscoSiem Reap

SFO - SAI

SFOSAI

San Francisco

Sun 4/5

10:50 pm-6:40 pm

1 stop29h 50m

Siem Reap–Angkor Intl

Wed 4/15

7:40 pm-5:55 pm

1 stop36h 15m

$837

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 21 results
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Best time to book a flight from Fremont to Siem Reap

Have a flexible travel schedule? Discover the best time to fly to Siem Reap from Fremont with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Fremont to Siem Reap
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Siem Reap

Get insights into the airlines that provide service to Siem Reap. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Siem Reap. Reviews last updated January 29, 2026.
See what other customers who have flown with Singapore Airlines and Vietnam Airlines from Fremont to Siem Reap have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.2
Very good
1,440 reviews

Comfort

8.0

Crew

8.6

Boarding

8.3

Entertainment

8.0

Overall

8.2

Food

7.8

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.
Singapore Airlines
8.2
Very good
1,440 reviews
Singapore Airlines
8.2
Very good
1,440 reviews

Comfort

8.0

Crew

8.6

Boarding

8.3

Entertainment

8.0

Overall

8.2

Food

7.8

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.
Vietnam Airlines
7.6
Good
224 reviews
Singapore Airlines
8.2
Very good
1,440 reviews

Comfort

8.0

Crew

8.6

Boarding

8.3

Entertainment

8.0

Overall

8.2

Food

7.8

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

Related info for your journey

Find useful and relevant information for your journey from Fremont to Siem Reap. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Siem Reap from Fremont?

    Most people fly into Siem Reap–Angkor Intl (SAI) if they book a flight to Siem Reap from Fremont. On average, Siem Reap–Angkor Intl has 0 inbound flights from Fremont per day from 2 airlines. Siem Reap–Angkor Intl is conveniently located just 24.7 mi from Siem Reap’s city center.

  • How long is the flight from Fremont to Siem Reap?

    Singapore Airlines and Vietnam Airlines can get you from Fremont to Siem Reap in just under 29h 50m. Your travel time can differ by up to 2h 50m. The distance between Fremont and Siem Reap is about 7791 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Fremont to Siem Reap one-way?

    One-way options have recently been found by users for as low as $331 on Vietnam Airlines. Other airlines that offer cheap prices include Singapore Airlines from $332 and United Airlines from $512 one-way.

  • Can I find deals for flights from Fremont to Siem Reap that include hotel bookings?

    Yes. In addition to deals on Fremont to Siem Reap flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Fremont to Siem Reap?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Fremont to Siem Reap.

  • Can I find deals for business class flights from Fremont to Siem Reap?

    Yes. Cheapflights offers flight deals from Fremont to Siem Reap by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Top 2 airlines flying from Fremont to Siem Reap

Discover the top 2 airlines that operate flights from Fremont to Siem Reap. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$628Average$756FlexibilityNo cancel feeOn-time81%
Vietnam AirlinesCheapest$770Average$1,129FlexibilityNo cancel feeOn-time81%

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