Find Cheap Flights from San Francisco to Siem Reap (SFO - REP)

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Good to Know

Average Price:
$1303
(avg. price over the last 2 weeks)
Good Deal:
$836
or less (round trip)

When to Book Flights from San Francisco to Siem Reap

Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $835 or less.
The cheapest flight from San Francisco to Siem Reap was found 46 days before departure, on average.
Book at least 2 weeks before departure in order to get a below-average price.
Morning departure is around 12% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking San Francisco to Siem Reap Flights

How long does a flight from San Francisco to Siem Reap take?
An average nonstop flight takes 20h 15m, covering a distance of 7812 miles.
Which airlines provide the cheapest flights from San Francisco to Siem Reap?
In the past 3 days, the cheapest round-trip tickets were found on Multiple Airlines ($511) and China Eastern ($581)
Do I need a passport to fly between San Francisco and Siem Reap?
Yes.

Book cheap flights from San Francisco to Siem Reap (round-trip)

Airports
Origin
San Francisco
$511
only
$511
Destination
Siem Reap
$511
only
$511
Sat, Apr 7
SFO
REP
34h 53m
Sun, Apr 22
REP
SFO
57h 14m
Trip: 16 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Apr 5
SFO
REP
20h 15m
Tue, Apr 10
REP
SFO
47h 55m
Trip: 6 days
6.3GoodShow reviews
Overall 6.3 Good
Based on 4328 reviews
Overall
6.4
Boarding
6.5
Comfort
6.4
Crew
6.8
Entertainment
6.1
Food
5.9
MDL
KMG
Okay 5.3

Crew is exceptionally nice and friendly!

The snacks and food offered are terrible. Cabins are dry and uncomfortable (not pressurized enough).

PVG
CMB
Excellent 8.3

Reasonable seat. Good entertainment. Great price.

Took off 80 min late.

PVG
YVR
Mediocre 3.6

Turbulence

PVG
HNL
Excellent 8.0

Boarding was a mess

ORD
PVG
Okay 4.6

Crew is decent. Choice of movies is good.

The earbuds' quality are real bad, like dollar store bad. Portion of food is real small. Only offered snacks once. Could smell cigarette on 4 different occassions, smoke detector even went off once due to cigarette but no action was taken against the passenger. Could smell poop too. Not allowed to use electronic device even on airplane mode, which is ridiculous.

Fri, Apr 6
SFO
REP
20h 15m
Sun, Apr 22
REP
SFO
47h 38m
Trip: 17 days
Overall 0.0 Poor
Based on 0 reviews
Sat, May 5
SFO
REP
40h 00m
Sun, May 20
REP
SFO
47h 55m
Trip: 16 days
6.3GoodShow reviews
Overall 6.3 Good
Based on 4328 reviews
Overall
6.4
Boarding
6.5
Comfort
6.4
Crew
6.8
Entertainment
6.1
Food
5.9
PVG
CMB
Excellent 8.3

Reasonable seat. Good entertainment. Great price.

Took off 80 min late.

PVG
HNL
Excellent 8.0

Boarding was a mess

PVG
SIN
Okay 4.3

Food was pretty good albeit small portion. Staff were decent.

Quality of ear bud is bad. Not allowed to use electronic device on the plane even in flight mode which is ridiculous because they allow laptops and ipads!!

PVG
YVR
Mediocre 3.6

Turbulence

PVG
CRK
Mediocre 2.6

No notice until 30min at gate delay plane Sleep on chairs like homeless No organization

Tue, May 8
SFO
REP
44h 40m
Sun, May 20
REP
SFO
47h 55m
Trip: 13 days
6.3GoodShow reviews
Overall 6.3 Good
Based on 4328 reviews
Overall
6.4
Boarding
6.5
Comfort
6.4
Crew
6.8
Entertainment
6.1
Food
5.9
PVG
HNL
Excellent 8.0

Boarding was a mess

KMG
SFO
Okay 5.6

Newer planes are good and comfortable. Legacy fleet is a little tired. Service is good food and entertainment is lacking.

Routed through Kumming to the north for a trip to SFO. If you're sloppy booking you and turn a 12 hour flight into a 2 day trip.

DEL
PVG
Mediocre 3.3

Flight delayed, ran out of beer, cut entertainment off way to early

KMG
SZX
Good 7.6

the plane was new, fairly comfortable, crews could speak somewhat ok english

they changed the original departure time to earlier but then it was departed later than the updated time. food was on scary level

KMG
PEK
Okay 4.6

Crew is exceptionally nice and friendly!

The snacks and food offered are terrible. Cabins are dry and uncomfortable (not pressurized enough).

Thu, Apr 5
SFO
REP
44h 40m
Thu, Apr 19
REP
SFO
31h 38m
Trip: 15 days
Overall 0.0 Poor
Based on 0 reviews
Thu, May 10
SFO
REP
44h 40m
Sun, May 20
REP
SFO
47h 55m
Trip: 11 days
6.3GoodShow reviews
Overall 6.3 Good
Based on 4328 reviews
Overall
6.4
Boarding
6.5
Comfort
6.4
Crew
6.8
Entertainment
6.1
Food
5.9
ORD
PVG
Okay 4.6

Crew is decent. Choice of movies is good.

The earbuds' quality are real bad, like dollar store bad. Portion of food is real small. Only offered snacks once. Could smell cigarette on 4 different occassions, smoke detector even went off once due to cigarette but no action was taken against the passenger. Could smell poop too. Not allowed to use electronic device even on airplane mode, which is ridiculous.

DEL
PVG
Mediocre 3.3

Flight delayed, ran out of beer, cut entertainment off way to early

GMP
SHA
Good 6.6

There is no

PVG
CMB
Excellent 8.3

Reasonable seat. Good entertainment. Great price.

Took off 80 min late.

PVG
CRK
Mediocre 2.6

No notice until 30min at gate delay plane Sleep on chairs like homeless No organization

Mon, Apr 9
SFO
REP
35h 55m
Fri, Apr 13
REP
SFO
28h 35m
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Apr 9
SFO
REP
35h 55m
Wed, Apr 25
REP
SFO
24h 20m
Trip: 17 days
Overall 0.0 Poor
Based on 0 reviews
Sat, Apr 21
SFO
REP
44h 40m
Sun, Apr 29
REP
SFO
47h 55m
Trip: 9 days
6.3GoodShow reviews
Overall 6.3 Good
Based on 4328 reviews
Overall
6.4
Boarding
6.5
Comfort
6.4
Crew
6.8
Entertainment
6.1
Food
5.9
KMG
SFO
Okay 5.6

Newer planes are good and comfortable. Legacy fleet is a little tired. Service is good food and entertainment is lacking.

Routed through Kumming to the north for a trip to SFO. If you're sloppy booking you and turn a 12 hour flight into a 2 day trip.

PVG
HNL
Excellent 8.0

Boarding was a mess

DEL
PVG
Mediocre 3.3

Flight delayed, ran out of beer, cut entertainment off way to early

KMG
PEK
Okay 4.6

Crew is exceptionally nice and friendly!

The snacks and food offered are terrible. Cabins are dry and uncomfortable (not pressurized enough).

KMG
SZX
Good 7.6

the plane was new, fairly comfortable, crews could speak somewhat ok english

they changed the original departure time to earlier but then it was departed later than the updated time. food was on scary level

Thu, Apr 12
SFO
REP
44h 40m
Wed, Apr 25
REP
SFO
28h 35m
Trip: 14 days
6.3GoodShow reviews
Overall 6.3 Good
Based on 4328 reviews
Overall
6.4
Boarding
6.5
Comfort
6.4
Crew
6.8
Entertainment
6.1
Food
5.9
PVG
CMB
Excellent 8.3

Reasonable seat. Good entertainment. Great price.

Took off 80 min late.

PVG
CRK
Mediocre 2.6

No notice until 30min at gate delay plane Sleep on chairs like homeless No organization

GMP
SHA
Good 6.6

There is no

KMG
SZX
Good 7.6

the plane was new, fairly comfortable, crews could speak somewhat ok english

they changed the original departure time to earlier but then it was departed later than the updated time. food was on scary level

MDL
KMG
Okay 5.3

Crew is exceptionally nice and friendly!

The snacks and food offered are terrible. Cabins are dry and uncomfortable (not pressurized enough).

Fri, Mar 23
SFO
REP
63h 35m
Tue, Apr 3
REP
SFO
49h 15m
Trip: 12 days
Overall 0.0 Poor
Based on 0 reviews
Sat, Apr 14
SFO
REP
44h 40m
Fri, Apr 27
REP
SFO
28h 35m
Trip: 14 days
6.3GoodShow reviews
Overall 6.3 Good
Based on 4328 reviews
Overall
6.4
Boarding
6.5
Comfort
6.4
Crew
6.8
Entertainment
6.1
Food
5.9
KMG
PEK
Okay 4.6

Crew is exceptionally nice and friendly!

The snacks and food offered are terrible. Cabins are dry and uncomfortable (not pressurized enough).

PVG
CRK
Mediocre 2.6

No notice until 30min at gate delay plane Sleep on chairs like homeless No organization

GMP
SHA
Good 6.6

There is no

PVG
YVR
Mediocre 3.6

Turbulence

PVG
CMB
Excellent 8.3

Reasonable seat. Good entertainment. Great price.

Took off 80 min late.

Mon, Mar 26
SFO
REP
36h 55m
Sat, Mar 31
REP
SFO
47h 38m
Trip: 6 days
Overall 0.0 Poor
Based on 0 reviews
Sat, Mar 24
SFO
REP
42h 35m
Mon, Apr 2
REP
SFO
28h 35m
Trip: 10 days
6.3GoodShow reviews
Overall 6.3 Good
Based on 4328 reviews
Overall
6.4
Boarding
6.5
Comfort
6.4
Crew
6.8
Entertainment
6.1
Food
5.9
MDL
KMG
Okay 5.3

Crew is exceptionally nice and friendly!

The snacks and food offered are terrible. Cabins are dry and uncomfortable (not pressurized enough).

ORD
PVG
Okay 4.6

Crew is decent. Choice of movies is good.

The earbuds' quality are real bad, like dollar store bad. Portion of food is real small. Only offered snacks once. Could smell cigarette on 4 different occassions, smoke detector even went off once due to cigarette but no action was taken against the passenger. Could smell poop too. Not allowed to use electronic device even on airplane mode, which is ridiculous.

PVG
CMB
Excellent 8.3

Reasonable seat. Good entertainment. Great price.

Took off 80 min late.

PVG
HNL
Excellent 8.0

Boarding was a mess

KMG
PEK
Okay 4.6

Crew is exceptionally nice and friendly!

The snacks and food offered are terrible. Cabins are dry and uncomfortable (not pressurized enough).

Thu, Apr 5
SFO
REP
38h 00m
Fri, Apr 20
REP
SFO
28h 35m
Trip: 16 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Apr 5
SFO
REP
44h 40m
Wed, Apr 18
REP
SFO
28h 35m
Trip: 14 days
6.3GoodShow reviews
Overall 6.3 Good
Based on 4328 reviews
Overall
6.4
Boarding
6.5
Comfort
6.4
Crew
6.8
Entertainment
6.1
Food
5.9
MDL
KMG
Okay 5.3

Crew is exceptionally nice and friendly!

The snacks and food offered are terrible. Cabins are dry and uncomfortable (not pressurized enough).

KMG
SZX
Good 7.6

the plane was new, fairly comfortable, crews could speak somewhat ok english

they changed the original departure time to earlier but then it was departed later than the updated time. food was on scary level

PVG
CRK
Mediocre 2.6

No notice until 30min at gate delay plane Sleep on chairs like homeless No organization

KMG
PEK
Okay 4.6

Crew is exceptionally nice and friendly!

The snacks and food offered are terrible. Cabins are dry and uncomfortable (not pressurized enough).

PVG
YVR
Mediocre 3.6

Turbulence

Sun, Mar 25
SFO
REP
35h 55m
Mon, Apr 2
REP
SFO
28h 35m
Trip: 9 days
Overall 0.0 Poor
Based on 0 reviews
Sat, May 5
SFO
REP
44h 40m
Thu, May 24
REP
SFO
24h 20m
Trip: 20 days
6.3GoodShow reviews
Overall 6.3 Good
Based on 4328 reviews
Overall
6.4
Boarding
6.5
Comfort
6.4
Crew
6.8
Entertainment
6.1
Food
5.9
GMP
SHA
Good 6.6

There is no

PVG
SIN
Okay 4.3

Food was pretty good albeit small portion. Staff were decent.

Quality of ear bud is bad. Not allowed to use electronic device on the plane even in flight mode which is ridiculous because they allow laptops and ipads!!

ORD
PVG
Okay 4.6

Crew is decent. Choice of movies is good.

The earbuds' quality are real bad, like dollar store bad. Portion of food is real small. Only offered snacks once. Could smell cigarette on 4 different occassions, smoke detector even went off once due to cigarette but no action was taken against the passenger. Could smell poop too. Not allowed to use electronic device even on airplane mode, which is ridiculous.

PVG
HNL
Excellent 8.0

Boarding was a mess

MDL
KMG
Okay 5.3

Crew is exceptionally nice and friendly!

The snacks and food offered are terrible. Cabins are dry and uncomfortable (not pressurized enough).

Fri, Apr 6
SFO
REP
34h 53m
Fri, Apr 20
REP
SFO
28h 35m
Trip: 15 days
Overall 0.0 Poor
Based on 0 reviews
Show more results
*
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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.

San Francisco to Siem Reap Flight Information

Flights Arrive in Siem Reap
Flights Depart from San Francisco
Flight Price $511
Distance 7812 miles
Airlines China Eastern