Is there a direct flight from SFO to SIN?

Yes, there are direct flights from SFO (SFO) to SIN (SIN).

How long does it take to fly from SFO to SIN?

The fastest route from SFO to SIN takes approximately 31 hours and 10 minutes.

How long does it take to recover from jetlag on this route?

Based on circadian science, jetlag recovery for the SFO to SIN route typically takes 3.0 days with proper light exposure and sleep timing adjustments.

What is the distance from SFO to SIN?

The great circle distance from SFO (SFO) to SIN (SIN) is approximately 13,580 kilometers (8,438 miles).

SFO → SIN

Direct Available

SFO to SIN

United States to Singapore

Distance

13,580 km

Fastest

31h 10m

Recovery

~3.0 days

Options

45 routes

Eastbound Flight

+16h shift

Eastward travel is harder to adjust — your body clock moves forward

Best Jetlag Score

1/100

Minimal impact

Tip: Start adjusting 2-3 days before departure. Go to bed 30 min earlier each day and seek morning light.

Quick Comparison

Best routes for different priorities

Fastest

33h 27m

1 stop via ICN

Easiest Recovery

1/100

~3.0 days recovery

Fewest Stops

1 stop

37h 15m • AI

AI 6E

37h 15m•1 stop•

Safe(0.175)

1/ 100

~3.0d recovery

35h 35m•1 stop•

Safe(0.06)

2/ 100

~7.0d recovery

33h 35m•1 stop•

Safe(0.1)

3/ 100

~6.0d recovery

38h 45m•1 stop•

Safe(0.275)

3/ 100

~10.0d recovery

33h 27m•1 stop•

Safe(0.1)

4/ 100

~6.0d recovery

33h 34m•1 stop•

Safe(0.175)

4/ 100

~7.0d recovery

SFO

SIN

BR BR

33h 50m•1 stop•

Safe(0.39)

4/ 100

~7.0d recovery

33h 55m•1 stop•

Safe(0.355)

4/ 100

~6.0d recovery

34h 10m•1 stop•

Safe(0.355)

4/ 100

~6.0d recovery

34h 20m•1 stop•

Safe(0.53)

4/ 100

~7.0d recovery

34h 20m•1 stop•

Safe(0.105)

4/ 100

~7.0d recovery

34h 24m•1 stop•

Safe(0.425)

4/ 100

~7.0d recovery

34h 30m•1 stop•

Safe(0.39)

4/ 100

~6.0d recovery

34h 30m•1 stop•

Safe(0.245)

4/ 100

~7.0d recovery

34h 45m•1 stop•

Safe(0.1)

4/ 100

~4.0d recovery

34h 57m•1 stop•

Safe(0.46)

4/ 100

~7.0d recovery

35h 10m•1 stop•

Safe(0.46)

4/ 100

~7.0d recovery

35h 10m•1 stop•

Safe(0.46)

4/ 100

~7.0d recovery

36h 30m•1 stop•

Safe(0.21)

4/ 100

~7.0d recovery

38h 30m•1 stop•

Safe(0.1)

4/ 100

~4.0d recovery

SFO

SYD

SIN

Origin & Destination

San Francisco International

SFO, United States

Singapore Changi

SIN, Singapore

Route overview

Direct flights available

Direct options

1-stop options

Timezone shift+16h east

Eastward travel - harder adjustment

Airlines on Route

AI 6E CZ TR CI SQ SK KJ

Recovery Facilities

SFO

SIN

Ground Transport

Explore More Routes

More flights from SFO

Other routes to SIN

Return flight

SIN SFO

Compare jetlag impact for the return journey