Find Cheap Flights from San Francisco to Singapore Changi (SFO - SIN)

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Good to Know

Low Season:
March
Best time to beat the crowds
4%
expected price decrease
High Season:
December
Most popular time to fly
10%
expected price increase
Average Price:
$1507
(avg. price over the last 2 weeks)
Good Deal:
$841
or less (round trip)

When to Book Flights from San Francisco to Singapore Changi

Average price per month
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 $840 or less.
The cheapest flight from San Francisco to Singapore Changi was found 89 days before departure, on average.
Book at least 2 weeks before departure in order to get a below-average price.
Morning departure is around 48% more expensive 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 Singapore Changi Flights

How long does a flight from San Francisco to Singapore Changi take?
An average nonstop flight takes 21h 35m, covering a distance of 8438 miles.
How many flights are there between San Francisco and Singapore Changi?
There are 14 (nonstop) flights between San Francisco and Singapore Changi per week, averaging 2 per day.
Which airlines provide the cheapest flights from San Francisco to Singapore Changi?
In the past 3 days, the cheapest round-trip tickets were found on Multiple Airlines ($450), China Southern ($459) and China Eastern ($485).
Do I need a passport to fly between San Francisco and Singapore Changi?
Yes.
Which airlines fly most frequently between San Francisco and Singapore Changi?
United (1 times daily), Singapore Airlines (1 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly San Francisco to Singapore Changi?
For San Francisco to Singapore Changi, Saturday is the cheapest day to fly on average and Thursday is the most expensive. Flying from Singapore Changi back to San Francisco, the best deals are generally found on Sunday, with Tuesday being the most expensive.

Book cheap flights from San Francisco to Singapore Changi (round-trip)

Airports
Origin
San Francisco
$450
only
$450
Destination
Singapore
$450
only
$450
Sat, Jan 20
SFO
SIN
27h 30m
Tue, Jan 30
SIN
SFO
36h 03m
Trip: 11 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Mar 8
SFO
SIN
31h 35m
Mon, Mar 26
SIN
SFO
23h 00m
Trip: 18 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 3639 reviews
Overall
7.1
Boarding
7.2
Comfort
7.0
Crew
7.5
Entertainment
6.8
Food
6.7
SGN
CAN
Excellent 10.0

November 14, 2017 Take flight CZ373 from Southern Airlines to Ho Chi Minh City from Guangzhou. My mom is 83 years old and need a wheelchair to walk. The flight crew arranged her on the machine. The flight Attendants let her sit in the front row and the stewardess is beautiful. Nov 21 return From Ho Chi Minh to Guangzhou. Flight CZ3070 Crew performed equally well. Thanks to Southern Airlines. The next choice of travel must be selected. I wish business is booming. Veng Hong Fan Email: fan_bonnie@yahoo.com.hk 23 Nov, 2017

CNX
CAN
Excellent 9.6

The staff of China Southern made our trip a great experience. We have flown with this airlines several times, and will continue to do so in the future! Thank you!!

SIN
CAN
Okay 4.0

cheap

no tv/ personal entertainment. feels like a budget flight. delayed flight

PNH
CAN
Good 7.6

China Southern is very welcoming, calming music and lavender diffuser on boarding. Very good customer service, always offering water and drinks.

CAN
JFK
Excellent 9.6

The staff of China Southern made our trip a great experience. We have flown with this airlines several times, and will continue to do so in the future! Thank you!!

Fri, Mar 30
SFO
SIN
36h 35m
Sun, Apr 15
SIN
SFO
25h 05m
Trip: 17 days
6.3GoodShow reviews
Overall 6.3 Good
Based on 3940 reviews
Overall
6.4
Boarding
6.4
Comfort
6.4
Crew
6.8
Entertainment
6.1
Food
5.8
PVG
LAX
Okay 4.6

Same in-flight movies as the west-bound flights. Crew has very limited English skills.

OKA
PVG
Excellent 10.0

Fast, easy and comfortable.

No internet acces in Shanghai.

PVG
HKG
Excellent 8.0

Good food. More comfortable the aboard.

LAX
PVG
Excellent 8.6

The movies and seats were amazing so it made the flight go by faster

None of the crew really spoke any English

PVG
BKK
Good 7.3

Timeliness,

Food, lack of water,.

Sat, Nov 25
SFO
SIN
40h 05m
Thu, Dec 7
SIN
SFO
27h 05m
Trip: 13 days
6.3GoodShow reviews
Overall 6.3 Good
Based on 3245 reviews
Overall
6.4
Boarding
6.6
Comfort
6.4
Crew
6.8
Entertainment
5.9
Food
5.9
MNL
PEK
Good 6.3

Better than the New Jersey flight to Beijing more food this time from Beijing to Houston staff was very nice and friendly

Seats too small me too big lol

PEK
IAH
Excellent 9.3

Every crew member was so nice and attentive.

There really isn't anything to complain. My flight experience was great

NRT
PEK
Good 7.6

Most of the staff was very helpful and accommodating. On the first leg of the flight one of the attendants even suggested a wine with dinner, a very kind gesture.

When my husband and I went to check in for our flight at the desk we had to wait very long time to get checked in. We noticed that one of the girls was in training, which is understandable but just inconvenient. We are both very patient people but this just made us nervous because our first flight on Air China to Japan on 10/26/17 was very delayed and caused us to have to literally run and still go through a rigorous security check. We were not rushed through the line even though we had nothing to do with our flight being delayed on our second leg. We then had to wait in another long line for security even after arriving into China on our flight back. There was also someone on board before take off with a medical problem and we could tell that some of the patrons started getting a bit aggressive or irritable. I don’t think the crew could’ve done much in that regard but wish the issue had been resolved a little quicker. I believe it was a 40 minute delay in take off.

SGN
PEK
Mediocre 3.6

The food was good for airplane food.

It makes no sense to not allow the use of any electronics during take off and landing. My E reader doesn't even use a cell signal, but I couldn't have it out. Also, not allowing cell phones at ANY time during the flight, even in airplane mode, is ridiculous because tablets, which can have cell signals, are allowed. Air China is just frustrating.

IAD
PEK
Good 7.3

I have flown with Air China before and had a bad experience. They are improving everything from customer service to in-flight amenities. Transfers in Beijing are still a problem with zero efficiency.

They don't honor seat selection when booking but attendant at gate helped and was very understanding.

Tue, Jan 16
SFO
SIN
30h 05m
Tue, Jan 23
SIN
SFO
63h 13m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Jan 23
SFO
SIN
35h 55m
Wed, Mar 21
SIN
SFO
26h 10m
Trip: 57 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 3639 reviews
Overall
7.1
Boarding
7.2
Comfort
7.0
Crew
7.5
Entertainment
6.8
Food
6.7
CAN
JFK
Excellent 9.6

The staff of China Southern made our trip a great experience. We have flown with this airlines several times, and will continue to do so in the future! Thank you!!

CAN
JFK
Excellent 9.6

Arrived on time.

CTU
CAN
Excellent 8.0

Everything went well except for my comments to the right.

Check in in person . The lady that issues boarding passes. She never smiled and I was scared to ask her anything. She sure did not volunteer any info concerning our flight from Chengdu to LAX via CAN. Never asked if we preferred isle or window seats. I remember her and will avoid her next time.

SGN
CAN
Excellent 10.0

November 14, 2017 Take flight CZ373 from Southern Airlines to Ho Chi Minh City from Guangzhou. My mom is 83 years old and need a wheelchair to walk. The flight crew arranged her on the machine. The flight Attendants let her sit in the front row and the stewardess is beautiful. Nov 21 return From Ho Chi Minh to Guangzhou. Flight CZ3070 Crew performed equally well. Thanks to Southern Airlines. The next choice of travel must be selected. I wish business is booming. Veng Hong Fan Email: fan_bonnie@yahoo.com.hk 23 Nov, 2017

CAN
LAX
Okay 5.6

Business class & price

Service for food. Our whole section was not served dessert.

Tue, Jan 9
SFO
SIN
40h 25m
Wed, Feb 21
SIN
SFO
39h 20m
Trip: 44 days
6.3GoodShow reviews
Overall 6.3 Good
Based on 3940 reviews
Overall
6.4
Boarding
6.4
Comfort
6.4
Crew
6.8
Entertainment
6.1
Food
5.8
PVG
ICN
Mediocre 3.6

the plane was downgraded from airbus 330 to boeing 737

SFO
PVG
Okay 4.3

Boarding was good, crew was friendly.

Very uncomfortable flight, arrived late so missed connecting flight, second connecting flight late.

PVG
BKK
Good 7.3

Timeliness,

Food, lack of water,.

PVG
WUH
Mediocre 2.0

Nothing

Everything, will never use again. Worst flight experience I have had has been with this airline

PVG
LAX
Okay 4.6

Same in-flight movies as the west-bound flights. Crew has very limited English skills.

Tue, Jan 16
SFO
SIN
30h 05m
Tue, Jan 23
SIN
SFO
63h 13m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Sat, Apr 7
SFO
SIN
41h 35m
Fri, Apr 13
SIN
SFO
23h 00m
Trip: 7 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 3639 reviews
Overall
7.1
Boarding
7.2
Comfort
7.0
Crew
7.5
Entertainment
6.8
Food
6.7
SGN
CAN
Excellent 10.0

November 14, 2017 Take flight CZ373 from Southern Airlines to Ho Chi Minh City from Guangzhou. My mom is 83 years old and need a wheelchair to walk. The flight crew arranged her on the machine. The flight Attendants let her sit in the front row and the stewardess is beautiful. Nov 21 return From Ho Chi Minh to Guangzhou. Flight CZ3070 Crew performed equally well. Thanks to Southern Airlines. The next choice of travel must be selected. I wish business is booming. Veng Hong Fan Email: fan_bonnie@yahoo.com.hk 23 Nov, 2017

CTU
CAN
Excellent 8.0

Everything went well except for my comments to the right.

Check in in person . The lady that issues boarding passes. She never smiled and I was scared to ask her anything. She sure did not volunteer any info concerning our flight from Chengdu to LAX via CAN. Never asked if we preferred isle or window seats. I remember her and will avoid her next time.

PNH
CAN
Good 7.6

China Southern is very welcoming, calming music and lavender diffuser on boarding. Very good customer service, always offering water and drinks.

CAN
JFK
Good 7.6

They did work with us to help with the seating.

We flew from NYC- JFK to Siem Reap Cambodia and back with the airline. On the way back I was unable to choose seats online prior to boarding. We were placed in Row 63, which is the LAST row on the plane and does not recline. For a 15 hour flight this seating should not be used. It is completely unreasonable to think people will be ok not reclining, and honestly the seats felt more straight up than the normal seats. After discussing it with the crew for half an hour on a full flight they were able to move us to other seats. But were unable to move us to business or first for a discount. End point: these seats should not be used! It was so miserable even thinking we might get stuck with them. And if they do stick people there you should be comped, that was not worth the same fare everyone else payed for coach.

SIN
CAN
Okay 4.0

cheap

no tv/ personal entertainment. feels like a budget flight. delayed flight

Thu, Nov 30
SFO
SIN
39h 45m
Mon, Dec 4
SIN
SFO
26h 30m
Trip: 5 days
6.3GoodShow reviews
Overall 6.3 Good
Based on 3940 reviews
Overall
6.4
Boarding
6.4
Comfort
6.4
Crew
6.8
Entertainment
6.1
Food
5.8
PEK
PVG
Good 6.6

I bought a round trip ticket online with my current passport number. When I arrived in Shanghai, I was held at the Customs for extra 20 or 30 minutes because the airline provided a passport number I used more than 10 years ago. My luggage was held at Pudong airport quite a few days. Each day, they said something different to me... When it's the time for me to go back, I was held again at PEK, because of the different passport number they kept in their system. Even though I explained to them how I purchased the ticket with my current passport number and I have no idea where the problem happened. They insisted that it was my own fault. My gmail did not work properly in China. I asked them for help by providing me the ticket agent contact info in the States. They said that they did not know. I should go where I bought my ticket. I had to spend hours to contact friends in the States to find the phone number of justfly.com. Then, I made international call to justfly for about hour to have the problem fixed. I did not provide any wrong info when purchasing the ticket. The problem was made between the airline and their agent. They, as professionals, could easily have the problem solved but they blamed the customer for the mistake. I had to spend so much extra time and money to cover their mistake, at the risk of missing my flight. That's the worst experience I ever had for international flight.

PVG
ICN
Mediocre 3.6

the plane was downgraded from airbus 330 to boeing 737

PVG
WUH
Mediocre 2.0

Nothing

Everything, will never use again. Worst flight experience I have had has been with this airline

SFO
PVG
Good 7.3

New planes, efficient crew, on time.... Early arrival!

Shanghai airport transit process is horrible! Good is very plain, bit I don't care so much. However, not enough water provided. This really needs addressing...

LAX
PVG
Good 6.6

Good food and servir of the crew.

Problems to check in, long lines to aboard.

Mon, Jan 22
SFO
SIN
30h 05m
Tue, Jan 30
SIN
SFO
42h 22m
Trip: 9 days
Overall 0.0 Poor
Based on 0 reviews
Sun, Apr 22
SFO
SIN
21h 35m
Sun, May 6
SIN
SFO
21h 10m
Trip: 15 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 3639 reviews
Overall
7.1
Boarding
7.2
Comfort
7.0
Crew
7.5
Entertainment
6.8
Food
6.7
SIN
CAN
Okay 4.0

cheap

no tv/ personal entertainment. feels like a budget flight. delayed flight

CAN
LAX
Okay 5.6

Business class & price

Service for food. Our whole section was not served dessert.

CAN
JFK
Excellent 9.6

The staff of China Southern made our trip a great experience. We have flown with this airlines several times, and will continue to do so in the future! Thank you!!

CTU
CAN
Excellent 8.0

Everything went well except for my comments to the right.

Check in in person . The lady that issues boarding passes. She never smiled and I was scared to ask her anything. She sure did not volunteer any info concerning our flight from Chengdu to LAX via CAN. Never asked if we preferred isle or window seats. I remember her and will avoid her next time.

CAN
LAX
Okay 4.0

cheap

air con dripping

Wed, Jan 10
SFO
SIN
35h 00m
Wed, Jan 17
SIN
SFO
25h 45m
Trip: 8 days
6.3GoodShow reviews
Overall 6.3 Good
Based on 3940 reviews
Overall
6.4
Boarding
6.4
Comfort
6.4
Crew
6.8
Entertainment
6.1
Food
5.8
PVG
HKG
Excellent 8.0

Good food. More comfortable the aboard.

CAN
NGB
Good 7.0

Kayak or JustFly put wrong ID number whole booking the flight. First 2 segment I had no issues buy 3rd segment they denied to check me in and almost forced me to buy a new ticket. Check in Crew was rude and would speak to me in Chinese. I am a foreigner who doesn't understand English. They wanted me to call my booking agent in Canada, it was mid night in Canada.

SFO
PVG
Okay 4.3

Boarding was good, crew was friendly.

Very uncomfortable flight, arrived late so missed connecting flight, second connecting flight late.

SFO
PVG
Good 7.3

New planes, efficient crew, on time.... Early arrival!

Shanghai airport transit process is horrible! Good is very plain, bit I don't care so much. However, not enough water provided. This really needs addressing...

LAX
PVG
Excellent 8.6

The movies and seats were amazing so it made the flight go by faster

None of the crew really spoke any English

Sun, Jan 21
SFO
SIN
21h 50m
Fri, Feb 2
SIN
SFO
37h 25m
Trip: 13 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 3639 reviews
Overall
7.1
Boarding
7.2
Comfort
7.0
Crew
7.5
Entertainment
6.8
Food
6.7
CAN
LAX
Okay 5.6

Business class & price

Service for food. Our whole section was not served dessert.

CAN
JFK
Good 7.6

They did work with us to help with the seating.

We flew from NYC- JFK to Siem Reap Cambodia and back with the airline. On the way back I was unable to choose seats online prior to boarding. We were placed in Row 63, which is the LAST row on the plane and does not recline. For a 15 hour flight this seating should not be used. It is completely unreasonable to think people will be ok not reclining, and honestly the seats felt more straight up than the normal seats. After discussing it with the crew for half an hour on a full flight they were able to move us to other seats. But were unable to move us to business or first for a discount. End point: these seats should not be used! It was so miserable even thinking we might get stuck with them. And if they do stick people there you should be comped, that was not worth the same fare everyone else payed for coach.

SIN
CAN
Okay 4.0

cheap

no tv/ personal entertainment. feels like a budget flight. delayed flight

CAN
JFK
Excellent 9.6

Arrived on time.

CAN
JFK
Excellent 9.6

The staff of China Southern made our trip a great experience. We have flown with this airlines several times, and will continue to do so in the future! Thank you!!

Thu, Feb 1
SFO
SIN
41h 20m
Wed, Feb 28
SIN
SFO
26h 30m
Trip: 28 days
6.3GoodShow reviews
Overall 6.3 Good
Based on 3940 reviews
Overall
6.4
Boarding
6.4
Comfort
6.4
Crew
6.8
Entertainment
6.1
Food
5.8
PVG
LAX
Okay 4.6

Same in-flight movies as the west-bound flights. Crew has very limited English skills.

SFO
PVG
Okay 4.3

Boarding was good, crew was friendly.

Very uncomfortable flight, arrived late so missed connecting flight, second connecting flight late.

SFO
PVG
Good 7.3

New planes, efficient crew, on time.... Early arrival!

Shanghai airport transit process is horrible! Good is very plain, bit I don't care so much. However, not enough water provided. This really needs addressing...

LAX
PVG
Good 6.6

Good food and servir of the crew.

Problems to check in, long lines to aboard.

PVG
ICN
Mediocre 3.6

the plane was downgraded from airbus 330 to boeing 737

Thu, Mar 8
SFO
SIN
48h 45m
Fri, Mar 30
SIN
SFO
23h 00m
Trip: 22 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Jan 22
SFO
SIN
21h 50m
Wed, Mar 21
SIN
SFO
26h 10m
Trip: 58 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 3639 reviews
Overall
7.1
Boarding
7.2
Comfort
7.0
Crew
7.5
Entertainment
6.8
Food
6.7
PNH
CAN
Good 7.6

China Southern is very welcoming, calming music and lavender diffuser on boarding. Very good customer service, always offering water and drinks.

CAN
JFK
Good 7.6

They did work with us to help with the seating.

We flew from NYC- JFK to Siem Reap Cambodia and back with the airline. On the way back I was unable to choose seats online prior to boarding. We were placed in Row 63, which is the LAST row on the plane and does not recline. For a 15 hour flight this seating should not be used. It is completely unreasonable to think people will be ok not reclining, and honestly the seats felt more straight up than the normal seats. After discussing it with the crew for half an hour on a full flight they were able to move us to other seats. But were unable to move us to business or first for a discount. End point: these seats should not be used! It was so miserable even thinking we might get stuck with them. And if they do stick people there you should be comped, that was not worth the same fare everyone else payed for coach.

SIN
CAN
Okay 4.0

cheap

no tv/ personal entertainment. feels like a budget flight. delayed flight

LAX
CAN
Okay 4.0

I still don’t have my luggage and I’m coming home. Awful

CAN
LAX
Excellent 8.0

Everything went well.

Tue, Feb 13
SFO
SIN
39h 45m
Sun, Mar 4
SIN
SFO
26h 30m
Trip: 20 days
6.3GoodShow reviews
Overall 6.3 Good
Based on 3940 reviews
Overall
6.4
Boarding
6.4
Comfort
6.4
Crew
6.8
Entertainment
6.1
Food
5.8
LAX
PVG
Excellent 8.6

The movies and seats were amazing so it made the flight go by faster

None of the crew really spoke any English

PVG
BKK
Good 7.3

Timeliness,

Food, lack of water,.

LAX
PVG
Good 6.6

Good food and servir of the crew.

Problems to check in, long lines to aboard.

CAN
NGB
Good 7.0

Kayak or JustFly put wrong ID number whole booking the flight. First 2 segment I had no issues buy 3rd segment they denied to check me in and almost forced me to buy a new ticket. Check in Crew was rude and would speak to me in Chinese. I am a foreigner who doesn't understand English. They wanted me to call my booking agent in Canada, it was mid night in Canada.

PVG
HKG
Excellent 8.0

Good food. More comfortable the aboard.

Sat, Mar 10
SFO
SIN
48h 45m
Fri, Mar 30
SIN
SFO
23h 00m
Trip: 20 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Jan 24
SFO
SIN
26h 10m
Wed, Mar 21
SIN
SFO
20h 40m
Trip: 56 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 3639 reviews
Overall
7.1
Boarding
7.2
Comfort
7.0
Crew
7.5
Entertainment
6.8
Food
6.7
CAN
JFK
Good 7.6

They did work with us to help with the seating.

We flew from NYC- JFK to Siem Reap Cambodia and back with the airline. On the way back I was unable to choose seats online prior to boarding. We were placed in Row 63, which is the LAST row on the plane and does not recline. For a 15 hour flight this seating should not be used. It is completely unreasonable to think people will be ok not reclining, and honestly the seats felt more straight up than the normal seats. After discussing it with the crew for half an hour on a full flight they were able to move us to other seats. But were unable to move us to business or first for a discount. End point: these seats should not be used! It was so miserable even thinking we might get stuck with them. And if they do stick people there you should be comped, that was not worth the same fare everyone else payed for coach.

CAN
JFK
Excellent 9.6

Arrived on time.

CTU
CAN
Excellent 8.0

Everything went well except for my comments to the right.

Check in in person . The lady that issues boarding passes. She never smiled and I was scared to ask her anything. She sure did not volunteer any info concerning our flight from Chengdu to LAX via CAN. Never asked if we preferred isle or window seats. I remember her and will avoid her next time.

SIN
CAN
Okay 4.0

cheap

no tv/ personal entertainment. feels like a budget flight. delayed flight

SGN
CAN
Excellent 10.0

November 14, 2017 Take flight CZ373 from Southern Airlines to Ho Chi Minh City from Guangzhou. My mom is 83 years old and need a wheelchair to walk. The flight crew arranged her on the machine. The flight Attendants let her sit in the front row and the stewardess is beautiful. Nov 21 return From Ho Chi Minh to Guangzhou. Flight CZ3070 Crew performed equally well. Thanks to Southern Airlines. The next choice of travel must be selected. I wish business is booming. Veng Hong Fan Email: fan_bonnie@yahoo.com.hk 23 Nov, 2017

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