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Phnom Penh

$1,344+ Cheap flights from Santa Rosa (STS) to Phnom Penh (PNH)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/21. Fares are subject to change and may not be available on all flights or dates of travel.
STS — PNH
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap flight deals from Santa Rosa to Phnom Penh

Discover tips and strategies to find the most affordable flight options for your journey from Santa Rosa (STS) 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 August 14, 2025.

Round-trip from

$1,344
(Singapore Airlines)

Popular in

June

Cheapest in

September

Average price

$933
From Santa Rosa Sonoma County to Phnom Penh Pochentong
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Highest demand for flights based on searches. 13% potential increase in price ($159 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($35 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Santa Rosa to Phnom Penh

Cheapest flights from Santa Rosa to Phnom Penh
Explore the most affordable flight options available from Santa Rosa to Phnom Penh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This Singapore Airlines deal was found by Cheapflights users on 8/12. 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 Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2112:41 pmSTS - PNH
2 stops34h 29mSingapore Airlines
Sat 10/256:55 pmPNH - STS
2 stops43h 04mSingapore Airlines
Deal found 8/12$1,344
This Singapore Airlines deal was found by Cheapflights users on 8/13. 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 Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/286:34 pmSTS - PNH
2 stops29h 11mSingapore Airlines
Sat 11/19:35 amPNH - STS
3 stops53h 24mSingapore Airlines
Deal found 8/13$1,357

Cheapflights Fare Finder

 
Customize your flight search to find flights from Santa Rosa 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 August 14, 2025.
Use the filters below to find and compare flights from Santa Rosa to Phnom Penh that are best for you.

Fly from

Santa Rosa

Fly to

Phnom Penh

Route

Depart

Return

Price

Santa RosaPhnom Penh

STS - PNH

STSPNH

Santa Rosa Sonoma County

Tue 10/21

12:41 pm-1:10 pm

2 stops34h 29m

Phnom Penh Pochentong

Sat 10/25

6:55 pm-11:59 pm

2 stops43h 04m

$1,344

Santa RosaPhnom Penh

STS - PNH

STSPNH

Santa Rosa Sonoma County

Tue 10/28

6:34 pm-1:45 pm

2 stops29h 11m

Phnom Penh Pochentong

Sat 11/1

9:35 am-12:59 am

3 stops53h 24m

$1,357

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Best time to book a flight from Santa Rosa to Phnom Penh

Have a flexible travel schedule? Discover the best time to fly to Phnom Penh from Santa Rosa 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 Santa Rosa to Phnom Penh

What is the cheapest month to book a flight from Santa Rosa to Phnom Penh?

Currently, March is the cheapest month in which you can book a flight from Santa Rosa to Phnom Penh (average of $986). Flying from Santa Rosa to Phnom Penh in June is currently the most expensive (average of $1,546). 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.

Related info for your journey

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

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

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

  • How can I find direct flights from Santa Rosa to Phnom Penh?

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

  • Can I find deals for business class flights from Santa Rosa to Phnom Penh?

    Yes. Cheapflights offers flight deals from Santa Rosa 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 Santa Rosa to Phnom Penh?

    Currently, March is the cheapest month in which you can book a flight from Santa Rosa to Phnom Penh (average of $986). Flying from Santa Rosa to Phnom Penh in June is currently the most expensive (average of $1,546). 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.

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