Cheap Flights from Phnom Penh to San Francisco International

Compare Phnom Penh to San Francisco International flight deals

Find the cheapest month or even day of the year to fly to San Francisco International

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Flight deals from Phnom Penh to San Francisco International

Looking for a cheap last-minute deal or the best return flight from Phnom Penh to San Francisco International? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Phnom Penh to San Francisco International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Phnom Penh to San Francisco International flights are currently cheapest in September.

Phnom Penh to San Francisco International: Alternative routes

Compare routes from Phnom Penh to San Francisco below. You may find an airport to fly into that's cheaper, faster, or easier than San Francisco International.

Phnom Penh to San Francisco: Flight information

The things to know before you go.
Cheapest flight foundR 6,002
Cheapest month to flySeptember

Finding cheap flights from Phnom Penh to San Francisco International: Frequently asked questions

The best price we found for a return flight from Phnom Penh to San Francisco International is R 11,813. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Phnom Penh to San Francisco International. But we found flights with one or more stops from R 11,850.
As of August 2025, there are no flights flying from Phnom Penh to San Francisco International.
The cheapest month to fly from Phnom Penh to San Francisco International is usually August.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Phnom Penh Airport to San Francisco International Airport on Saturday, 30 August 2025.
No airlines currently offer direct flights between Phnom Penh Airport and San Francisco International Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Francisco International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Francisco is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Cathay Pacific offers the cheapest flight tickets to San Francisco International.

Travelling from Phnom Penh International Airport (PNH) to San Francisco International Airport (SFO): what you need to know

  • San Francisco is 14 hours behind Phnom Penh and observes the UTC-7 timezone.

  • To ensure you catch your PNH to SFO flight, leave enough time to check in and find your gate. Arriving two hours ahead of international departures and an hour before domestic flights is the general travel rule.

  • During popular months like August, you'll want to get to the airport well in advance. Arrive two hours before a domestic departure and four hours ahead of an international flight whenever you're flying during a peak period in general.

  • Think about adding a stopover when booking your ticket from Phnom Penh International Airport to San Francisco International Airport. Simply deselect 'Direct flights only' to break up your journey, or even explore someplace new along the way. Here are some options between PNH and SFO:

    • Taiwan Taoyuan International Airport

    • Tan Son Nhat International Airport

    • Changi International Airport

How to find the cheapest flights from Phnom Penh International Airport (PNH) to San Francisco International Airport (SFO)

  • At the moment, R 6,002 is the cheapest price we've seen for a one-way Phnom Penh International Airport to San Francisco International Airport flight. The best price for a return plane ticket is R 11,813. Remember that fares can change due to demand when booking.

  • It's often best to book as early as possible if you want to get cheap tickets from PNH to SFO. That's because airlines change prices based on demand, which tends to increase closer to departure.

  • Finding cheap flights from Phnom Penh International Airport to San Francisco International Airport is easy if you're flexible with your travel dates. Use the 'Whole month' function to see the best prices across every month and bag a great deal.

  • Spend less time searching for cheap flights from PNH to SFO by setting up a Price Alert. We'll send you an email or notification through the app when a lower fare becomes available.

  • Tailor your trip using filters. Pick your departure and arrival times, airlines and total journey duration. You can also sort your results by 'Cheapest,' 'Best' or 'Fastest' flights from Phnom Penh International Airport to San Francisco International Airport.

Handy information about Phnom Penh International Airport (PNH)

  • 74.4% of flights leaving from Phnom Penh International Airport touch down at their destination on time.

  • Phnom Penh International Airport is about 11 kilometres from central Phnom Penh. If you're driving, catching a cab or ride-sharing from the centre, it'll take you 30 minutes or so to get there, depending on the traffic.

  • Need a handy hotel close to PNH? If you're boarding an early flight from Phnom Penh International Airport to San Francisco International Airport, these accommodation options will have you moments from your departure lounge:

Arriving at San Francisco International Airport (SFO)

Getting from San Francisco International Airport (SFO) to central San Francisco

  • San Francisco International Airport to the centre of San Francisco has a drive time of around 20 minutes. It's approximately 21 kilometres away.

  • It takes roughly 45 minutes if you're travelling by public transport.

When to fly to San Francisco International Airport (SFO)

  • The quietest month for a flight from Phnom Penh International Airport to San Francisco International Airport is February, while August is the busiest. Pick the ideal time to go to San Francisco based on whether you prefer a faster pace or a more relaxed vibe.

  • When booking your flight from Phnom Penh International Airport to San Francisco International Airport, consider the type of weather you enjoy. September is the warmest month in San Francisco, with the temperature ranging from 12ºC (54ºF) to 22ºC (72ºF).

  • January has average temperatures of between 6ºC (43ºF) and 16ºC (61ºF). Look for cheap tickets from PNH to SFO around that time if you like cooler conditions.

Explore more of United States

  • You've done San Francisco, now it's time to discover other parts of United States. Travel around 64 kilometres south-east to San Jose to check off its leading sights. From Winchester Mystery House to Rosicrucian Egyptian Museum and San Jose Museum of Art, you'll have a full itinerary ahead.

  • Around 257 kilometres south-east of San Francisco, Fresno is another favourite stop in United States. Experience this destination's highlights firsthand at Forestiere Underground Gardens, Fresno Chaffee Zoo and Shinzen Japanese Garden.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.