$350 Cheap Flights from San Francisco (SFO) to Phnom Penh (PNH)

View $350 flight on Mon, Aug 18, 2025Opens in a new window

Popular airlines from San Francisco Intl. Airport (SFO) to Phnom Penh Intl. Airport (PNH)

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Cheap Flights from San Francisco to Phnom Penh (SFO-PNH)

Prices were available within the past 7 days and start at $350 for one-way flights and $639 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Singapore Airlines
Sun, Jan 18 - Sat, Feb 14
SFO
San Francisco
PNH
Phnom Penh
$639 Roundtrip, found 2 hours ago
$639
Roundtrip
found 2 hours ago
Select Singapore Airlines flight, departing Sun, Jan 18 from San Francisco to Phnom Penh, returning Sat, Feb 14, priced at $639 found 2 hours ago
China Eastern Airlines
Thu, Sep 18 - Sat, Oct 4
SFO
San Francisco
PNH
Phnom Penh
$700 Roundtrip, found 2 hours ago
$700
Roundtrip
found 2 hours ago
Select China Eastern Airlines flight, departing Thu, Sep 18 from San Francisco to Phnom Penh, returning Sat, Oct 4, priced at $700 found 2 hours ago
Philippine Airlines
Wed, Sep 3 - Sun, Sep 7
SFO
San Francisco
PNH
Phnom Penh
$718 Roundtrip, found 6 days ago
$718
Roundtrip
found 6 days ago
Select Philippine Airlines flight, departing Wed, Sep 3 from San Francisco to Phnom Penh, returning Sun, Sep 7, priced at $718 found 6 days ago
Cathay Pacific
Thu, Aug 28 - Wed, Sep 3
SFO
San Francisco
PNH
Phnom Penh
$734 Roundtrip, just found
$734
Roundtrip
just found
Select Cathay Pacific flight, departing Thu, Aug 28 from San Francisco to Phnom Penh, returning Wed, Sep 3, priced at $734 just found
Asiana Airlines
Wed, Sep 10 - Wed, Sep 24
SFO
San Francisco
PNH
Phnom Penh
$772 Roundtrip, just found
$772
Roundtrip
just found
Select Asiana Airlines flight, departing Wed, Sep 10 from San Francisco to Phnom Penh, returning Wed, Sep 24, priced at $772 just found
Korean Air
Thu, Aug 28 - Sun, Sep 7
SFO
San Francisco
PNH
Phnom Penh
$777 Roundtrip, found 1 day ago
$777
Roundtrip
found 1 day ago
Select Korean Air flight, departing Thu, Aug 28 from San Francisco to Phnom Penh, returning Sun, Sep 7, priced at $777 found 1 day ago
Delta
Tue, Dec 2 - Wed, Dec 10
SFO
San Francisco
PNH
Phnom Penh
$788 Roundtrip, found 1 day ago
$788
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Dec 2 from San Francisco to Phnom Penh, returning Wed, Dec 10, priced at $788 found 1 day ago
Vietnam Airlines
Wed, Nov 12 - Thu, Nov 27
SFO
San Francisco
PNH
Phnom Penh
$795 Roundtrip, found 1 day ago
$795
Roundtrip
found 1 day ago
Select Vietnam Airlines flight, departing Wed, Nov 12 from San Francisco to Phnom Penh, returning Thu, Nov 27, priced at $795 found 1 day ago
China Airlines
Thu, Aug 28 - Wed, Sep 3
SFO
San Francisco
PNH
Phnom Penh
$936 Roundtrip, just found
$936
Roundtrip
just found
Select China Airlines flight, departing Thu, Aug 28 from San Francisco to Phnom Penh, returning Wed, Sep 3, priced at $936 just found
EVA Airways
Wed, Sep 10 - Wed, Sep 24
SFO
San Francisco
PNH
Phnom Penh
$1,074 Roundtrip, just found
$1,074
Roundtrip
just found
Select EVA Airways flight, departing Wed, Sep 10 from San Francisco to Phnom Penh, returning Wed, Sep 24, priced at $1,074 just found

Find the cheapest month to fly from San Francisco (SFO) to Phnom Penh (PNH)

January is typically the cheapest month to fly

From $639 - $1,712 per traveler.

Graph displaying average flight prices per month

Alternative airports near Phnom Penh

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Phnom Penh Intl. PNH. Cheapest and Closest option available. Average driving time to city center is 14 minutes. Flights from $777
PNH
Phnom Penh Intl.
CheapestClosest
Average driving time to city center14 min
Flights from $777
Flights from San Francisco (SFO) to Phnom Penh (PNH)
Origin airport
San Francisco Intl.
Destination airport
Phnom Penh Intl.
Airlines serving
Air Canada, Asiana Airlines, Cathay Pacific, China Airlines, China Eastern Airlines, China Southern Airlines, Delta, EVA Airways, Emirates, Etihad Airways, Korean Air, Lufthansa, Malaysia Airlines, Philippine Airlines, Singapore Airlines, Swiss International Air Lines, Turkish Airlines, United, Vietnam Airlines
Roundtrip price
$638
Distance
7867 mi

San Francisco to Phnom Penh Flights

The cheapest times to fly from San Francisco to Phnom Penh

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from San Francisco to Phnom Penh are during the month of January. You can find some of the cheapest flights from San Francisco to Phnom Penh with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from San Francisco to Phnom Penh

Sunday is one of the best days to book for cheap flights from San Francisco to Phnom Penh: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from San Francisco to Phnom Penh

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from San Francisco to Phnom Penh in 2025. You can also book with separate airlines for your outbound and return journeys, from $350 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap San Francisco to Phnom Penh flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your San Francisco to Phnom Penh airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from San Francisco Intl. Airport (SFO) to Phnom Penh Intl. Airport (PNH) cost?
Lock in a cheap one-way flight from $350 or cheap return flight from $639 from San Francisco Intl. Airport (SFO) to Phnom Penh Intl. Airport (PNH) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from San Francisco Intl. Airport (SFO) to Phnom Penh Intl. Airport (PNH)?
Planning your trip for January can help you save, as it's the cheapest month for flights between SFO and PNH. You'll usually find the lowest fares during off-peak months.
What is the cheapest airline that flies from San Francisco Intl. Airport (SFO) to Phnom Penh Intl. Airport (PNH)?
Use the filter tool on Expedia to compare different airlines and find the most affordable carrier that'll fly you from SFO to PNH. Then, sort your results by "Price (lowest to highest)" to pick up the best deal available.
How many flights per day from San Francisco Intl. Airport (SFO) to Phnom Penh Intl. Airport (PNH)?
You'll need to book a flight with a layover when traveling from San Francisco Intl. Airport (SFO) to Phnom Penh Intl. Airport (PNH). Direct flights don't operate daily on this route. However, just filter your search to include one or two stops to discover the best option for your trip.
What day of the week has the most flights from SFO to PNH?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can vary depending on various factors, such as the season and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from San Francisco Intl. Airport (SFO) to Phnom Penh Intl. Airport (PNH)?
To avoid possible delays on the San Francisco Intl. Airport (SFO) to Phnom Penh Intl. Airport (PNH) route, fly before 3 PM. Departures after this time have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from San Francisco Intl. Airport (SFO) to Phnom Penh Intl. Airport (PNH) last-minute?
Waiting until just before your departure to book a ticket from SFO to PNH generally means paying more. While you may come across some last-minute deals, there's no guarantee. Be flexible with your travel plans to boost your chances of landing a bargain.
Is it cheaper to book a SFO to PNH flight and hotel package?
You can save money by booking a SFO to PNH flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one convenient place. Once you've selected your ideal accommodations and flights, you can add extras like car rentals, activities and tours.
Can I cancel or change the date of my flight from San Francisco Intl. Airport (SFO) to Phnom Penh Intl. Airport (PNH)?
In most cases, you can cancel or modify your SFO to PNH flight. However, there may be additional charges, especially if you made your booking over 24 hours ago. Check your itinerary for the airline's fees and rules on flight changes, or if you want more information, go to our Customer Service portal.

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*Available to One Key members.