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Cheap Flights from San Francisco International to Siem Reap–Angkor

Compare San Francisco International to Siem Reap–Angkor flight deals

Find the cheapest month or even day of the year to fly to Siem Reap–Angkor

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Flight deals from San Francisco International Airport to Siem Reap–Angkor Airport

Looking for a cheap last-minute deal or the best return flight from San Francisco International to Siem Reap–Angkor ? Find the lowest prices on one-way and return tickets right here.
Siem Reap.R 6,312 per passenger.Departing Mon, 27 Apr.One-way flight with Singapore Airlines.Outbound indirect flight with Singapore Airlines, departs from San Francisco International on Mon, 27 Apr, arriving in Siem Reap–Angkor .Price includes taxes and charges.From R 6,312, select.
Siem Reap.R 6,324 per passenger.Departing Tue, 11 Aug.One-way flight with Singapore Airlines.Outbound indirect flight with Singapore Airlines, departs from San Francisco International on Tue, 11 Aug, arriving in Siem Reap–Angkor .Price includes taxes and charges.From R 6,324, select.
Siem Reap.R 6,792 per passenger.Departing Wed, 18 Nov.One-way flight with Vietnam Airlines.Outbound indirect flight with Vietnam Airlines, departs from San Francisco International on Wed, 18 Nov, arriving in Siem Reap–Angkor .Price includes taxes and charges.From R 6,792, select.
Siem Reap.R 9,022 per passenger.Departing Thu, 12 Mar.One-way flight with EVA Air.Outbound indirect flight with EVA Air, departs from San Francisco International on Thu, 12 Mar, arriving in Siem Reap–Angkor .Price includes taxes and charges.From R 9,022, select.
Siem Reap.R 9,403 per passenger.Departing Mon, 22 Jun.One-way flight with Zipair.Outbound indirect flight with Zipair, departs from San Francisco International on Mon, 22 Jun, arriving in Siem Reap–Angkor .Price includes taxes and charges.From R 9,403, select.

Find the cheapest month to fly from San Francisco International to Siem Reap–Angkor

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like San Francisco International to Siem Reap–Angkor flights are currently cheapest in April.
Mar
from R 9,022
Apr
from R 6,312
May
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Jun
from R 9,403
Jul
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Aug
from R 6,324
Sep
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Oct
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Nov
from R 6,792
Dec
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Jan
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Feb
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San Francisco International to Siem Reap–Angkor : Alternative routes

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

Siem Reap–Angkor

41km from central Siem Reap
ClosestCheapest
from R 6,312
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San Francisco to Siem Reap: Flight information

The things to know before you go.
Cheapest flight foundR 6,312
Cheapest month to flyApril

Finding cheap flights from San Francisco International to Siem Reap–Angkor : Frequently asked questions

The best price we found for a return flight from San Francisco International to Siem Reap–Angkor is R 11,484. 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 San Francisco International to Siem Reap–Angkor . But we found flights with one or more stops from R 11,484.
As of March 2026, there are no flights flying from San Francisco International to Siem Reap–Angkor .
The cheapest month to fly from San Francisco International to Siem Reap–Angkor is usually September.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from San Francisco International Airport to Siem Reap–Angkor Airport on Tuesday, 8 September 2026.
No airlines currently offer direct flights between San Francisco International Airport and Siem Reap–Angkor 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 Siem Reap–Angkor 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 Siem Reap is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Singapore Airlines offers the cheapest flight tickets to Siem Reap–Angkor .

Flying from San Francisco International Airport (SFO) to Siem Reap-Ankor International Airport (SAI): what you need to know

  • Siem Reap is 14 hours ahead of San Francisco and observes the UTC+7 timezone.

  • Give yourself enough time to make your SFO to SAI flight. Generally, it's best to arrive at least two hours before international departures and an hour ahead for domestic flights.

  • You'll likely experience longer queues in popular months like August. Arriving up to four hours ahead of international flights and two hours for a domestic departure will help ensure a smooth travel experience.

  • Opt for a stopover if you want to break up your flight. Simply uncheck 'Direct flights only' to see the options for tickets from San Francisco International Airport to Siem Reap-Ankor International Airport. Changi International Airport is a popular stopover on the SFO to SAI route.

How to find the cheapest flights from San Francisco International Airport (SFO) to Siem Reap-Ankor International Airport (SAI)

  • The cheapest price we've seen for a one-way San Francisco International Airport to Siem Reap-Ankor International Airport flight is R 6,312. A round-trip plane ticket is currently R 11,484. Depending on the availability and when you book, these fares could change.

  • To pick up cheap tickets from SFO to SAI, book ahead. Airlines usually offer their best fares when flights are first made available.

  • Finding cheap flights from San Francisco International Airport to Siem Reap-Ankor International Airport is easier if you can be flexible with your trip dates. Use the 'Whole month' function to see the best prices across every month and bag a great deal.

  • Cut down on the time spent looking for cheap flights from SFO to SAI by setting up a Price Alert. You'll receive an email or push notification on the app when fares go down.

  • Secure the ideal flight for you with the help of the filters. To see the 'Cheapest,' 'Best' or 'Fastest' flights from San Francisco International Airport to Siem Reap-Ankor International Airport, use the 'Sort by' tool. You can also filter results by airline, arrival and departure times, and journey duration.

Handy information about San Francisco International Airport (SFO)

  • 77.36% of flights leaving from San Francisco International Airport land at their destination on schedule.

  • Central San Francisco to San Francisco International Airport is around 21 kilometres. Depending on traffic, it'll take about 20 minutes to get there if you're driving, catching a cab or ride-sharing.

  • Expect a journey time of roughly 45 minutes when using public transport.

  • Get your journey off to a leisurely start by staying near SFO. Whether you've booked an early flight from San Francisco International Airport to Siem Reap-Ankor International Airport or just don't want to be rushed, these stays are perfect:

Arriving at Siem Reap-Ankor International Airport (SAI)

  • Once your San Francisco International Airport to Siem Reap-Ankor International Airport flight has landed, kick back at a nearby hotel. Chansor Community Homestay 18 is a comfy option within easy reach of SAI.

Getting from Siem Reap-Ankor International Airport (SAI) to central Siem Reap

  • From Siem Reap-Ankor International Airport, Siem Reap is approximately 48 kilometres away. It takes around 1 hour to reach the centre by car.

When to fly to Siem Reap-Ankor International Airport (SAI)

  • April is the most popular month for flights from San Francisco International Airport to Siem Reap-Ankor International Airport. For smaller crowds, go to Siem Reap in April.

  • Lock in your flight from San Francisco International Airport to Siem Reap-Ankor International Airport for March if you want to visit Siem Reap during its warmest month. Expect temperatures of between 22ºC (72ºF) and 38ºC (100ºF).

  • If you want to travel in cooler conditions, search for a cheap ticket from SFO to SAI in January. Average temperatures are between 18ºC (64ºF) and 33ºC (91ºF) then.

Explore more of Cambodia

  • Siem Reap is always a good idea, but there are so many other parts of Cambodia waiting to be discovered. Around 225 kilometres south-east of Siem Reap, a trip to Phnom Penh will keep you busy. Start with attractions like Royal Palace, Tuol Sleng Genocide Museum and Wat Phnom.

  • If you're looking to explore another corner of Cambodia, consider Sihanoukville, roughly 306 kilometres south of Siem Reap. Ochheuteal Beach, Wat Leu Temple and Wat Krom Temple are the start of reasons to visit.

Plan the rest of your trip from San Francisco to Siem Reap

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