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

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Sat 11/18
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Good to Know

Low Season:
October
Best time to beat the crowds
2%
expected price decrease
High Season:
July
Most popular time to fly
7%
expected price increase
Average Price:
$1640
(avg. price over the last 2 weeks)
Good Deal:
$981
or less (round trip)

When to Book Flights from Singapore Changi to San Francisco

Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

When looking for a cheap flight, consider that 25% of our users selected a flight on this route for $980 or less.
The cheapest flight from Singapore Changi to San Francisco was found 90 days before departure, on average.
Book at least 6 weeks before departure in order to get a below-average price.
High season is considered to be June, July and August. The cheapest month to fly is October.
Morning departure is around 52% 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 Singapore Changi to San Francisco Flights

How long does a flight from Singapore Changi to San Francisco take?
An average nonstop flight takes 20h 40m, covering a distance of 8438 miles.
How many flights are there between Singapore Changi and San Francisco?
There are 14 (nonstop) flights between Singapore Changi and San Francisco per week, averaging 2 per day.
Which airlines provide the cheapest flights from Singapore Changi to San Francisco?
In the past 3 days, the cheapest round-trip tickets were found on Multiple Airlines ($576), Philippine Airlines ($589) and China Eastern ($686).
Do I need a passport to fly between Singapore Changi and San Francisco?
Yes.
Which airlines fly most frequently between Singapore Changi and San Francisco?
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 Singapore Changi to San Francisco?
For Singapore Changi to San Francisco, Monday is the cheapest day to fly on average and Wednesday is the most expensive. Flying from San Francisco back to Singapore Changi, the best deals are generally found on Thursday, with Wednesday being the most expensive.

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

Airports
Origin
Singapore
$576
only
$576
Destination
San Francisco
$576
only
$576
Mon, Jan 22
SIN
SFO
42h 00m
Thu, Jan 25
SFO
SIN
82h 20m
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Apr 3
SIN
SFO
38h 00m
Mon, Apr 9
SFO
SIN
41h 45m
Trip: 7 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 1442 reviews
Overall
7.3
Boarding
7.2
Comfort
7.1
Crew
7.8
Entertainment
6.5
Food
6.9
SIN
MNL
Excellent 8.0

The food was excellent

One hour delay starting and 45 min. at the end, no Gate available.

HKG
MNL
Good 7.0

The attendants were very friendly and helpful and the flight was on time.

I had to use my own device to access entertainment and pay for it. I couldn't check in online.

HKG
MNL
Okay 5.2

The flight was on time

Seats are very tight and the only bathrooms were completely at the end of the aircraft.

MNL
BKK
Okay 4.6

Seats are too close together in economy for anyone over 5 foot ten inches.

MNL
SFO
Excellent 8.0

Seat 31A

None

Tue, Dec 5
SIN
SFO
25h 05m
Tue, Dec 12
SFO
SIN
25h 25m
Trip: 8 days
6.3GoodShow reviews
Overall 6.3 Good
Based on 3881 reviews
Overall
6.3
Boarding
6.4
Comfort
6.4
Crew
6.7
Entertainment
6.1
Food
5.8
PVG
PEK
Okay 5.0

None

Food, dirty bathroom, smells badly and more

HKG
PVG
Good 6.3

The flight was delayed for almost an hour but I think the flight attendants did a good job on letting the flyers know what was going on.

TAO
ICN
Good 7.3

Crew seemed friendly.

Boarding was delayed 30 min. The attendant who spoke to me, spoke in clear English. The one giving the announcement, her pronunciation was not completely clear. For a routine speech like that, it should be well-rehearsed and clear.

NGO
PVG
Good 6.3

Everything about our flight went very well, and most were better than expected. The crew were very helpful. Our seats had plenty of room in economy. This were done very efficiently and with concern for value.

Our Vegan meals were rather tasteless and uninteresting. The only entertainment was what we brought with us and overhead monitors.

PVG
KIX
Okay 5.0

I missed my flight to Osaka, cause must claimed baggage, re-checked and immigration & security clearanced in at Pudong.

Mon, Dec 25
SIN
SFO
20h 40m
Thu, Jan 4
SFO
SIN
31h 35m
Trip: 11 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 3587 reviews
Overall
7.1
Boarding
7.2
Comfort
7.0
Crew
7.5
Entertainment
6.8
Food
6.7
GMP
PEK
Good 7.3

left on time and arrived a little early, lunch was served (food was not bad, but not super amazing)

no personalized entertainment system

HAN
CAN
Excellent 8.0

On time departures and arrival

The food not enough to eat

CAN
LAX
Okay 4.6

I didn't like the crew too much. There were many empty business class seats so I moved to a window and took my pillow with me. They came and took the extra pillow back! Bizarre behavior. My vegetarian meals were not good at all. Couldn't eat them. 2 identical meals for dinner and breakfast.

LAX
CAN
Excellent 8.6

Love that everything is included. Food, drinks and entertainment. The crew were great and nothing was too much trouble.

Boarding of the A380 was ridiculous. We were lined up well ahead of boarding, then moved to another line, then moved again. Once we were lined up we had to stop and start, other people were pushed to the front again and again. This could have been solved by leaving one lane free for people sitting upstairs, or 'preferred' fliers. Instead everyone was pushed back and had to wait. I've never seen an aeroplane boarded so badly and we ended up being some of the last people on the plane. Badly organised and just plain awful.

HGH
CAN
Excellent 10.0

Long but very pleasant flight

Thu, Feb 1
SIN
SFO
32h 12m
Thu, Feb 8
SFO
SIN
24h 15m
Trip: 8 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 13528 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.5
Food
7.3
LAX
GUA
Mediocre 2.0

Nothing worst flight I've ever had.

Everything Delta was so poor quality!!! The flight attendants were not helpful.

ATL
SNA
Excellent 8.0

4 hour flight. Non-eventful except slight turbulence. Good to be home! Thank you!

NA

MOB
ATL
Good 6.0

Felt like I was sitting in my neighbors lap!

BUF
ATL
Excellent 10.0

I asked for a change of seat at the gate and was given it. It really made a difference to be at the window.

ATL
MCO
Excellent 10.0

Amazing experience thank you Delta

Sat, Mar 24
SIN
SFO
30h 45m
Sun, Apr 22
SFO
SIN
20h 55m
Trip: 30 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Dec 26
SIN
SFO
26h 30m
Wed, Jan 10
SFO
SIN
35h 00m
Trip: 16 days
6.3GoodShow reviews
Overall 6.3 Good
Based on 3881 reviews
Overall
6.3
Boarding
6.4
Comfort
6.4
Crew
6.7
Entertainment
6.1
Food
5.8
TAO
ICN
Good 7.3

Crew seemed friendly.

Boarding was delayed 30 min. The attendant who spoke to me, spoke in clear English. The one giving the announcement, her pronunciation was not completely clear. For a routine speech like that, it should be well-rehearsed and clear.

PVG
KIX
Okay 5.0

I missed my flight to Osaka, cause must claimed baggage, re-checked and immigration & security clearanced in at Pudong.

PVG
SFO
Good 7.6

Everything about our flight went very well, and most were better than expected. The crew were very helpful. Our seats had plenty of room in economy. This were done very efficiently and with concern for value. The entertainment system was super.

Our Vegan meals were rather tasteless and uninteresting.

NGO
PVG
Good 6.3

Everything about our flight went very well, and most were better than expected. The crew were very helpful. Our seats had plenty of room in economy. This were done very efficiently and with concern for value.

Our Vegan meals were rather tasteless and uninteresting. The only entertainment was what we brought with us and overhead monitors.

JFK
PVG
Okay 5.3

None

Food, seat, bathroom and smells badly, stinks,

Wed, Jan 17
SIN
SFO
37h 25m
Wed, Jan 24
SFO
SIN
28h 00m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Mar 15
SIN
SFO
38h 20m
Fri, Mar 30
SFO
SIN
22h 15m
Trip: 16 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 1442 reviews
Overall
7.3
Boarding
7.2
Comfort
7.1
Crew
7.8
Entertainment
6.5
Food
6.9
MNL
SFO
Excellent 8.0

Flight crew services are good

HKG
MNL
Okay 5.2

The flight was on time

Seats are very tight and the only bathrooms were completely at the end of the aircraft.

SYD
MNL
Excellent 10.0

Clean new planes, great service!

SIN
MNL
Excellent 8.0

The food was excellent

One hour delay starting and 45 min. at the end, no Gate available.

HKG
MNL
Good 7.0

The attendants were very friendly and helpful and the flight was on time.

I had to use my own device to access entertainment and pay for it. I couldn't check in online.

Wed, Nov 29
SIN
SFO
25h 05m
Fri, Dec 1
SFO
SIN
42h 00m
Trip: 3 days
6.3GoodShow reviews
Overall 6.3 Good
Based on 3881 reviews
Overall
6.3
Boarding
6.4
Comfort
6.4
Crew
6.7
Entertainment
6.1
Food
5.8
PVG
PEK
Okay 5.0

None

Food, dirty bathroom, smells badly and more

PVG
SZX
Excellent 9.0

Wondering if I can as a n the right flight out of PVG - luckily yes...

PEK
SHA
Okay 4.0

They would not accomidate a flight change after I was delayed in an accident getting to the airport. One desk said there was a seat on the earlier flight and sent me out of the gate area to the front of the airport. When I got there a few minutes later they said no there is no seat. I was upset because I had to wait 6 hours now and go back through security again. I asked to speak to a supervisor. They pertended not to understand. I was persistant and then they siad oh here is a seat on the 1:00 flight. Then he goes do you want window or aisle. If there was no seats whey do I have a choice?

PVG
KIX
Okay 5.0

I missed my flight to Osaka, cause must claimed baggage, re-checked and immigration & security clearanced in at Pudong.

JFK
PVG
Okay 5.3

None

Food, seat, bathroom and smells badly, stinks,

Sun, Apr 1
SIN
SFO
36h 10m
Fri, Apr 6
SFO
SIN
20h 55m
Trip: 6 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Feb 8
SIN
SFO
38h 20m
Sat, Feb 17
SFO
SIN
32h 30m
Trip: 10 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 1442 reviews
Overall
7.3
Boarding
7.2
Comfort
7.1
Crew
7.8
Entertainment
6.5
Food
6.9
MNL
SFO
Excellent 9.0

Service by the cabin crew was excellent.

Seats were not that comfortable. The myPAL app would not connect to their WiFi although the wifi was working. I

HKG
MNL
Good 7.0

The attendants were very friendly and helpful and the flight was on time.

I had to use my own device to access entertainment and pay for it. I couldn't check in online.

NRT
MNL
Mediocre 2.0

it is the worst airline I ever fly.

SIN
MNL
Excellent 8.0

The food was excellent

One hour delay starting and 45 min. at the end, no Gate available.

MNL
BKK
Okay 4.6

Seats are too close together in economy for anyone over 5 foot ten inches.

Thu, Nov 23
SIN
SFO
25h 05m
Fri, Dec 1
SFO
SIN
40h 25m
Trip: 9 days
6.3GoodShow reviews
Overall 6.3 Good
Based on 3881 reviews
Overall
6.3
Boarding
6.4
Comfort
6.4
Crew
6.7
Entertainment
6.1
Food
5.8
PVG
LAX
Excellent 10.0

Attendants tried to make a 10+ hour flight as comfortable as possible

N/A

PVG
SFO
Good 7.6

Everything about our flight went very well, and most were better than expected. The crew were very helpful. Our seats had plenty of room in economy. This were done very efficiently and with concern for value. The entertainment system was super.

Our Vegan meals were rather tasteless and uninteresting.

LAX
PVG
Okay 5.3

I liked the seats are roomy

I didn’t like the limited choices for food. In addition I felt those that spoke Chinese were taken care of better. I sat towards the end of the plane and they ran out constantly of food. The food they did serve wasn’t very good.

PVG
SZX
Excellent 9.0

Wondering if I can as a n the right flight out of PVG - luckily yes...

PEK
SHA
Okay 4.0

They would not accomidate a flight change after I was delayed in an accident getting to the airport. One desk said there was a seat on the earlier flight and sent me out of the gate area to the front of the airport. When I got there a few minutes later they said no there is no seat. I was upset because I had to wait 6 hours now and go back through security again. I asked to speak to a supervisor. They pertended not to understand. I was persistant and then they siad oh here is a seat on the 1:00 flight. Then he goes do you want window or aisle. If there was no seats whey do I have a choice?

Mon, Feb 5
SIN
SFO
43h 29m
Wed, Feb 14
SFO
SIN
25h 45m
Trip: 10 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 13528 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.5
Food
7.3
JFK
JAX
Good 7.6

Delta never used to be my first choice in airlines, but of my recent experience with them has been excellent. The people from the counter to the plane have been professional and courteous. This is why I will fly with them more frequently.

LGA
CVG
Excellent 8.3

Plane was far too tight. Very uncomfortable for taller individuals.

JFK
LAX
Excellent 9.3

Check in was easy through their app. Also very quick lines to drop off bags. Crew was very nice and respectful

Seat are a little bit too close together. But overall very comfortable

ATL
MCO
Excellent 10.0

Amazing experience thank you Delta

ATL
SNA
Excellent 8.0

4 hour flight. Non-eventful except slight turbulence. Good to be home! Thank you!

NA

Tue, Feb 13
SIN
SFO
38h 20m
Tue, Feb 20
SFO
SIN
28h 10m
Trip: 8 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 1442 reviews
Overall
7.3
Boarding
7.2
Comfort
7.1
Crew
7.8
Entertainment
6.5
Food
6.9
MNL
HNL
Excellent 10.0

Smooth journey

MNL
SFO
Excellent 8.0

Flight crew services are good

MNL
SFO
Excellent 9.0

Service by the cabin crew was excellent.

Seats were not that comfortable. The myPAL app would not connect to their WiFi although the wifi was working. I

CNS
AKL
Okay 5.0

The crew was fine.I appreciated that it was non-stop.

There was about 8" of leg room in the economy section. Not enough to move my feet around. The beef sausage breakfast was tasteless and not very warm; the eggs were watery. The movie was extremely violent. I worry about the children on board who could see it even if they couln't hear it.

SYD
MNL
Excellent 10.0

Clean new planes, great service!

Wed, Nov 22
SIN
SFO
33h 05m
Wed, Nov 29
SFO
SIN
26h 40m
Trip: 8 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 3587 reviews
Overall
7.1
Boarding
7.2
Comfort
7.0
Crew
7.5
Entertainment
6.8
Food
6.7
HAN
CAN
Excellent 8.0

On time departures and arrival

The food not enough to eat

CAN
JFK
Okay 4.0

The flight attendants are good, but the check in crew needs to be more friendly and helpful, with the growing economy boom in china, we will have an increase in tourist to China which cause the air line to be packed, so they need to be much more helpful when attending customers!

HGH
CAN
Excellent 10.0

Long but very pleasant flight

CAN
LAX
Okay 4.6

I didn't like the crew too much. There were many empty business class seats so I moved to a window and took my pillow with me. They came and took the extra pillow back! Bizarre behavior. My vegetarian meals were not good at all. Couldn't eat them. 2 identical meals for dinner and breakfast.

GMP
PEK
Good 7.3

left on time and arrived a little early, lunch was served (food was not bad, but not super amazing)

no personalized entertainment system

Mon, Jan 22
SIN
SFO
37h 25m
Fri, Jan 26
SFO
SIN
26h 40m
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Jan 17
SIN
SFO
57h 45m
Fri, Jan 26
SFO
SIN
25h 25m
Trip: 10 days
6.3GoodShow reviews
Overall 6.3 Good
Based on 3881 reviews
Overall
6.3
Boarding
6.4
Comfort
6.4
Crew
6.7
Entertainment
6.1
Food
5.8
JFK
PVG
Okay 5.3

None

Food, seat, bathroom and smells badly, stinks,

PVG
SFO
Good 7.6

Everything about our flight went very well, and most were better than expected. The crew were very helpful. Our seats had plenty of room in economy. This were done very efficiently and with concern for value. The entertainment system was super.

Our Vegan meals were rather tasteless and uninteresting.

HKG
PVG
Good 6.3

The flight was delayed for almost an hour but I think the flight attendants did a good job on letting the flyers know what was going on.

PVG
LAX
Excellent 10.0

Attendants tried to make a 10+ hour flight as comfortable as possible

N/A

PVG
PEK
Okay 5.0

None

Food, dirty bathroom, smells badly and more

Tue, Feb 6
SIN
SFO
26h 40m
Mon, Feb 12
SFO
SIN
38h 30m
Trip: 7 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 13528 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.5
Food
7.3
JFK
LAX
Excellent 9.3

Check in was easy through their app. Also very quick lines to drop off bags. Crew was very nice and respectful

Seat are a little bit too close together. But overall very comfortable

LAX
GUA
Mediocre 2.0

Nothing worst flight I've ever had.

Everything Delta was so poor quality!!! The flight attendants were not helpful.

ATL
BNA
Excellent 10.0

Compared to previous flight - this was so much better with upgrade to first class and extra space.

YUL
ATL
Good 6.0

Fligth were on time

My flight from Montreal to Atlanta was 2:30 min Left at 6:10 arrive at 8:30 roughly Tried twice to get to my connection earlier and get 9:30 instead of 12:09 fligth to Daytona Delta was not flexible to allow me to book saying i did not have 55 min in between fligth which i had than lear n it will cost $75.00 to change the fligth - What? Very disappointed of Delta - lost 3 hrs at the airport today

JFK
JAX
Good 7.6

Delta never used to be my first choice in airlines, but of my recent experience with them has been excellent. The people from the counter to the plane have been professional and courteous. This is why I will fly with them more frequently.

Wed, Feb 14
SIN
SFO
23h 50m
Tue, Feb 20
SFO
SIN
22h 45m
Trip: 7 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 1442 reviews
Overall
7.3
Boarding
7.2
Comfort
7.1
Crew
7.8
Entertainment
6.5
Food
6.9
SYD
MNL
Excellent 10.0

Clean new planes, great service!

CNS
AKL
Okay 5.0

The crew was fine.I appreciated that it was non-stop.

There was about 8" of leg room in the economy section. Not enough to move my feet around. The beef sausage breakfast was tasteless and not very warm; the eggs were watery. The movie was extremely violent. I worry about the children on board who could see it even if they couln't hear it.

MNL
SFO
Good 7.6

The cabin crew were great and immediately responded when I pressed the FA button on the remote. The flight itself was relatively smooth and on time.

The myPAL app again would not connect to the plane’s wifi although I was able to use the free 30-minute internet service. The seats are pretty hard and I used the pillow for more cushion.

HKG
MNL
Okay 5.2

The flight was on time

Seats are very tight and the only bathrooms were completely at the end of the aircraft.

HKG
MNL
Good 7.0

The attendants were very friendly and helpful and the flight was on time.

I had to use my own device to access entertainment and pay for it. I couldn't check in online.

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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.