HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Phnom Penh

$306+ Cheap flights from San Francisco (SFO) to Phnom Penh (PNH)

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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — PNH
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Francisco to Phnom Penh with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from San Francisco to Phnom Penh Pochentong are usually found in September or February, booked 20 days in advance, depart on a Monday or Saturday and return on a Saturday

Cheap flight deals from San Francisco to Phnom Penh

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Phnom Penh (PNH). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 29, 2025.

Round-trip from

$730
(Gurufare)

One-way from

$306
(FlightHub)

Popular in

June

Cheapest in

September

Average price

$1,247
From San Francisco to Phnom Penh Pochentong
Search Deals
One-way flight from San Francisco to Phnom Penh Pochentong
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($152 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($33 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

Find flight deals from San Francisco to Phnom Penh

Cheapest flights from San Francisco to Phnom Penh
Explore the most affordable flight options available from San Francisco to Phnom Penh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

This Gurufare deal was found by Cheapflights users on 7/28. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/278:55 amSFO - PNH
2 stops24h 20mChina Eastern
Wed 9/312:40 pmPNH - SFO
2 stops34h 25mChina Eastern
Deal found 7/28$730
This CrystalTravel deal was found by Cheapflights users on 7/28. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/251:10 pmSFO - PNH
1 stop19h 00mKorean Air
Mon 9/111:30 pmPNH - SFO
1 stop25h 10mKorean Air
Deal found 7/28$731
This oojo deal was found by Cheapflights users on 7/27. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/511:30 pmSFO - PNH
1 stop33h 25mAsiana Airlines
Sun 12/1411:55 pmPNH - SFO
1 stop30h 05mAsiana Airlines
Deal found 7/27$738
This CrystalTravel deal was found by Cheapflights users on 7/29. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/251:05 amSFO - PNH
1 stop19h 10mCathay Pacific
Tue 9/211:25 amPNH - SFO
1 stop25h 30mCathay Pacific
Deal found 7/29$745
This Justfly.com deal was found by Cheapflights users on 7/27. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/3010:40 amSFO - PNH
1 stop31h 55mSingapore Airlines
Sun 11/92:40 pmPNH - SFO
1 stop32h 10mSingapore Airlines
Deal found 7/27$756
This Vietnam Airlines deal was found by Cheapflights users on 7/29. 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 Vietnam Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1510:50 pmSFO - PNH
1 stop30h 50mVietnam Airlines
Thu 5/72:10 pmPNH - SFO
1 stop18h 30mVietnam Airlines
Deal found 7/29$762
This FlightHub deal was found by Cheapflights users on 7/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/711:30 pmSFO - PNH
1 stop33h 25mMultiple Airlines
Tue 10/77:05 amPNH - SFO
2 stops22h 25mMultiple Airlines
Deal found 7/27$798

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Francisco to Phnom Penh 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 July 29, 2025.
Use the filters below to find and compare flights from San Francisco to Phnom Penh that are best for you.

Fly from

San Francisco

Fly to

Phnom Penh

Route

Depart

Return

Price

San FranciscoPhnom Penh

SFO - PNH

SFOPNH

San Francisco

Wed 8/27

8:55 am-11:15 pm

2 stops24h 20m

Phnom Penh Pochentong

Wed 9/3

12:40 pm-9:05 am

2 stops34h 25m

$730

San FranciscoPhnom Penh

SFO - PNH

SFOPNH

San Francisco

Mon 8/25

1:10 pm-10:10 pm

1 stop19h 00m

Phnom Penh Pochentong

Mon 9/1

11:30 pm-10:40 am

1 stop25h 10m

$731

San FranciscoPhnom Penh

SFO - PNH

SFOPNH

San Francisco

Sun 10/5

11:30 pm-10:55 pm

1 stop33h 25m

Phnom Penh Pochentong

Sun 12/14

11:55 pm-3:00 pm

1 stop30h 05m

$738

San FranciscoPhnom Penh

SFO - PNH

SFOPNH

San Francisco

Tue 8/26

1:05 am-5:20 pm

1 stop26h 15m

Phnom Penh Pochentong

Wed 9/3

11:25 am-5:50 pm

1 stop20h 25m

$745

San FranciscoPhnom Penh

SFO - PNH

SFOPNH

San Francisco

Thu 10/30

10:40 am-8:35 am

1 stop31h 55m

Phnom Penh Pochentong

Sun 11/9

2:40 pm-7:50 am

1 stop32h 10m

$756

San FranciscoPhnom Penh

SFO - PNH

SFOPNH

San Francisco

Wed 9/24

10:50 pm-4:55 pm

1 stop28h 05m

Phnom Penh Pochentong

Wed 10/8

2:10 pm-6:40 pm

1 stop18h 30m

$763

San FranciscoPhnom Penh

SFO - PNH

SFOPNH

San Francisco

Sun 9/7

11:30 pm-10:55 pm

1 stop33h 25m

Phnom Penh Pochentong

Tue 10/7

7:05 am-3:30 pm

2 stops22h 25m

$798

San FranciscoPhnom Penh

SFO - PNH

SFOPNH

San Francisco

Tue 8/26

12:35 am-10:40 am

1 stop20h 05m

Phnom Penh Pochentong

Wed 9/3

3:35 pm-8:30 pm

2 stops42h 55m

$862

San FranciscoPhnom Penh

SFO - PNH

SFOPNH

San Francisco

Tue 9/9

12:00 pm-1:10 pm

1 stop35h 10m

$306

San FranciscoPhnom Penh

SFO - PNH

SFOPNH

San Francisco

Thu 11/13

11:30 pm-10:55 pm

1 stop32h 25m

$388

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Showing 1-10 of 16 results
1
2

Best time to book a flight from San Francisco to Phnom Penh

Have a flexible travel schedule? Discover the best time to fly to Phnom Penh from San Francisco 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 San Francisco to Phnom Penh

How far ahead should I book a flight from San Francisco to Phnom Penh?

Use this chart to determine the optimal time to book a round-trip flight from San Francisco to Phnom Penh. Price data was last updated on July 25, 2025.

To ensure you get the cheapest price possible for a flight from San Francisco to Phnom Penh, you should look to book at least 20 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from San Francisco to Phnom Penh?

Currently, March is the cheapest month in which you can book a flight from San Francisco to Phnom Penh (average of $988). Flying from San Francisco to Phnom Penh in June is currently the most expensive (average of $1,549). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SFO to PNH?

Find hourly flight availability from San Francisco to Phnom Penh. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 29, 2025.

It’s optimal to fly from San Francisco to Phnom Penh in the afternoon. By choosing this option you can save up to 28% on the cost of your flight, compared to a flight at noon.

What’s the top layover airport for flights from San Francisco to Phnom Penh?

Share of 1-stop round-trip flights from San Francisco to Phnom Penh chosen by Cheapflights users in the past 12 months, using the same layover each way.

Taipei City (TPE) – chosen by Cheapflights users on 78% of 1-stop itineraries from San Francisco to Phnom Penh on Cheapflights.

What’s the cheapest layover airport for flights from San Francisco to Phnom Penh?

Average round-trip fare for 1-stop flights from San Francisco to Phnom Penh, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Singapore (SIN) is the most affordable 1-stop option, with an average round-trip price of $676.

What’s the fastest layover option from San Francisco to Phnom Penh?

Shortest average travel time for 1-stop one-way flights from San Francisco to Phnom Penh, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Hong Kong (HKG) have the shortest average one-way travel time for 1-stop routes: 5h 48m.

Which airport typically offers the quickest layover for flights from San Francisco to Phnom Penh?

Average layover duration for 1-stop one-way flights from San Francisco to Phnom Penh, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Taipei City (TPE) offer the fastest connection on this route, with an average layover time of 3h 25m.

Reviews of airlines servicing Phnom Penh

Get insights into the airlines that provide service to Phnom Penh. 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 Phnom Penh. Reviews last updated July 29, 2025.
Get a feel of what it's like to fly with Korean Air, China Airlines, and Asiana Airlines from San Francisco to Phnom Penh by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,121 reviews

Food

8.1

Crew

8.7

Boarding

8.5

Overall

8.4

Entertainment

8.2

Comfort

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very good
1,121 reviews
Korean Air
8.4
Very good
1,121 reviews

Food

8.1

Crew

8.7

Boarding

8.5

Overall

8.4

Entertainment

8.2

Comfort

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
China Airlines
8.3
Very good
754 reviews
Korean Air
8.4
Very good
1,121 reviews

Food

8.1

Crew

8.7

Boarding

8.5

Overall

8.4

Entertainment

8.2

Comfort

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Asiana Airlines
8.2
Very good
465 reviews
Korean Air
8.4
Very good
1,121 reviews

Food

8.1

Crew

8.7

Boarding

8.5

Overall

8.4

Entertainment

8.2

Comfort

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Singapore Airlines
8.1
Very good
1,338 reviews
Korean Air
8.4
Very good
1,121 reviews

Food

8.1

Crew

8.7

Boarding

8.5

Overall

8.4

Entertainment

8.2

Comfort

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Cathay Pacific
7.6
Good
948 reviews
Korean Air
8.4
Very good
1,121 reviews

Food

8.1

Crew

8.7

Boarding

8.5

Overall

8.4

Entertainment

8.2

Comfort

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Related info for your journey

Find useful and relevant information for your journey from San Francisco to Phnom Penh. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from San Francisco to Phnom Penh round-trip?

    Currently priced at $730, China Eastern will fly you from San Francisco to Phnom Penh and back. In addition to China Eastern, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Korean Air and Asiana Airlines - these airlines can fly you to your destination from $731 and $738, respectively. These flights start at 29% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from San Francisco to Phnom Penh one-way?

    The cheapest airline one-way is Singapore Airlines, with whom users have recently found tickets for as low as $306. However, be on the lookout for offers from Asiana Airlines and Vietnam Airlines, as they are both options that can get you from San Francisco to Phnom Penh for a low price.

  • Where are the most common layover locations when flying from San Francisco to Phnom Penh?

    Most of the time, San Francisco to Phnom Penh flights that have layovers will stop in Taipei City. San Francisco to Phnom Penh flights stop in Hong Kong the next most.

  • What are some popular things to do or see while on a layover in Taipei City?

    If you're on a layover in Taipei City and looking for things to do, consider visiting Taipei 101, Shilin Night Market, or Raohe Street Night Market. Taipei 101, Shilin Night Market, and Raohe Street Night Market can be visited by traveling about 21.0 mi, 18.3 mi, and 21.6 mi respectively from Taipei City Taiwan Taoyuan Intl. Those looking to explore during their layover in Taipei City can rent a car from Taipei City Taiwan Taoyuan Intl for about $71 per day.

  • What are some popular points of interest to see during a layover in Hong Kong?

    Hong Kong travelers tend to visit Hong Kong Disneyland, Shatin Baptist Church, and Ocean Park more than any other notable places. Hong Kong Disneyland, Shatin Baptist Church and Ocean Park are located about 7.8 mi, 18.3 mi, and 16.9 mi, respectively from Hong Kong Intl if you are interested in checking them out.

  • Where are the least popular layover locations for San Francisco to Phnom Penh flights?

    San Francisco to Phnom Penh flights have a layover in Singapore the least frequently. Seoul follows Singapore in terms of the least common layover location on San Francisco to Phnom Penh flights.

  • Can I find deals for flights from San Francisco to Phnom Penh that include hotel bookings?

    Yes. In addition to deals on San Francisco to Phnom Penh flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Francisco to Phnom Penh?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to Phnom Penh.

  • Can I find deals for business class flights from San Francisco to Phnom Penh?

    Yes. Cheapflights offers flight deals from San Francisco to Phnom Penh by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Francisco to Phnom Penh?

    Currently, March is the cheapest month in which you can book a flight from San Francisco to Phnom Penh (average of $988). Flying from San Francisco to Phnom Penh in June is currently the most expensive (average of $1,549). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 9 airlines flying from San Francisco to Phnom Penh

Discover the top 9 airlines that operate flights from San Francisco to Phnom Penh. 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 July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest$563Average$1,045FlexibilityNo cancel feeOn-time69%
Singapore AirlinesCheapest$604Average$917FlexibilityNo cancel feeOn-time81%
China EasternCheapest$662Average$766FlexibilityNo cancel feeOn-time62%
Asiana AirlinesCheapest$694Average$886FlexibilityNo cancel feeOn-time76%
Cathay PacificCheapest$714Average$828FlexibilityNo cancel feeOn-time72%
Vietnam AirlinesCheapest$736Average$770FlexibilityNo cancel feeOn-time81%
Korean AirCheapest$749Average$811FlexibilityNo cancel feeOn-time81%
China AirlinesCheapest$823Average$1,262FlexibilityNo cancel feeOn-time70%
EVA AirCheapest$906Average$1,053FlexibilityNo cancel feeOn-time74%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.