San Francisco to Singapore (SFO–SIN) — Airlines, Schedules & Connections

SFO Airport Page →
8,440 mi airlines charter/private 28/wk
On-time Some delays Frequent delays
Flight Schedule 9 flights Verified 14m ago
Nonstop Charter / private 1-Stop 2-Stop Hide separate tickets Hide overnight Hide codeshares
  Flight Airline AC Dep Arr Dur OTP Sched  
✈ Nonstop
UA29
UA United
789
11:10 AM
PDT TI
6:35 PM+1
+08
16h 25m
30%
M T W T F S S
Prices
SQ31
SQ Singapore Airlines
359
11:45 AM
PDT TI
7:10 PM+1
+08
16h 25m
M T W T F S S
Prices
SQ33
SQ Singapore Airlines
359
10:25 PM
PDT TI
5:30 AM+2
+08
16h 5m
M T W T F S S
Prices
UA1
UA United
789
10:50 PM
PDT T3
6:15 AM+2
+08
16h 25m
30%
M T W T F S S
Prices
SQ32
SQ Singapore Airlines
359
9:05 AM
+08 T3
9:50 AM
PDT
15h 45m
39%
M T W T F S S
Prices
UA3968
UA United
789
9:30 AM
+08
10:18 AM
PDT
15h 48m
M T W T F S S
Prices
UA2
UA United
789
10:19 AM
+08 T2
10:51 AM
PDT
15h 32m
M T W T F S S
Prices
SQ34
SQ Singapore Airlines
359
7:55 PM
+08 T3
8:35 PM
PDT
15h 40m
39%
M T W T F S S
Prices
UA28
UA United
789
10:04 PM
+08 T2
10:26 PM
PDT
15h 22m
M T W T F S S
Prices

No flights match your filters.

No scheduled airline flights on this route — it's flown by charter / private operators (). No nonstop flights on this route. connecting options below.

✦ 1-Stop connections via 10 hubs
XMN Xiamen 18h 30m UA GAMFMU Xiamen (XMN) to Singapore flights
TPE Taoyuan 18h 32m AVBRCI AIBRCI Taoyuan (TPE) to Singapore flights
MNL Manila (Pasay) 18h 42m PRUA 5JACLX Manila (Pasay) (MNL) to Singapore flights
HKG Hong Kong 18h 50m CXMHUA AYCXET Hong Kong (HKG) to Singapore flights
KIX Osaka 19h 15m UA AIFJMM Osaka (KIX) to Singapore flights
ICN Seoul 19h 22m AIAPZK4 7CAIKE Seoul (ICN) to Singapore flights
YVR Vancouver 19h 29m ACAVCM AC Vancouver (YVR) to Singapore flights
HNL Honolulu, Oahu 19h 30m ACASAV SQ Honolulu, Oahu (HNL) to Singapore flights
SEA Seattle 19h 31m AFAMAS SQ Seattle (SEA) to Singapore flights
NRT Narita 19h 32m JLMHNH 6EAIET Narita (NRT) to Singapore flights
1-STOP More options, longer trips
2-STOP Loading... Reach the hardest destinations
San Francisco to Singapore
2 carriers, 28 flights/week nonstop.
2 Airlines 8,440 mi 16h 25m nonstop +15h ahead

SFO–SIN is served by 2 airlines with nonstop service. Singapore Airlines and United Airlines lead the route. The flight covers 8,440 miles in approximately 16h 25m. Beyond nonstop, 1-stop connecting options are also available.

Airline Landscape

All carriers operating nonstop SFO–SIN service, compared side by side.
Airline Freq/wk Aircraft Duration Dep OTP Alliance Codeshares
SQ Singapore Airlines 14 359 16h05-16h25 56%
UA United Airlines 14 789 16h25 56% Star Alliance
Aircraft on this route
359 Airbus A350-900 – SQ
789 Boeing 787-9 Dreamliner – UA
Alliance coverage
Unaffiliated: SQ (14 flights/wk, 50%)
Star Alliance: UA (14 flights/wk, 50%)
OTP based on airport-level delay snapshots. Duration ranges reflect seasonal/directional variation.

Weekly Schedule Pattern

Nonstop flight frequency by day of week, SFO to SIN direction.
Mon
4
flights
Tue
4
flights
Wed
4
flights
Thu
4
flights
Fri
4
flights
Sat
4
flights
Sun
4
flights
Departure time distribution
12 AM6 AM12 PM6 PM12 AM
Morning departures
Afternoon/evening departures
4
Nonstop flights
28
Outbound / wk
29
Return / wk

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for SFO to SIN.
1-STOP
One-Stop Connections
41
Hubs
~18h
Fastest
~46h
Longest
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
2,531
Candidates
Two-stop connections loaded in the connections tab above.
Connections computed from published schedules with minimum connection time verification. Use the interactive explorer above the fold to filter by airline, tier, and layover time.

On-Time Performance

What to expect at each end of your journey.
Outbound
SFO → SIN
56%
Frequent delays expected. Consider flexible booking.
Departing
56%
Return
SIN → SFO
43%
Frequent delays expected. Consider flexible booking.
Arriving
43%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. SFO delays →

Travel Essentials

Practical planning for this route.
Time Difference
+15h
Singapore is 15 hours ahead of San Francisco.
SFO: PDT · SIN: +08

When it's 6:00 PM in San Francisco, it's 9:00 AM (next day) in Singapore.
Distance & Flight Time
8,440 mi / 13,581 km
Nonstop flight time is approximately 16h 25m gate to gate.
Visa & Entry

US passport holders enter Singapore visa-free for up to 90 days. No advance application is needed. Starting in 2024, all visitors must complete the SG Arrival Card (SGAC) online at eservices.ica.gov.sg within 3 days before arrival. Passport must be valid for at least 6 months beyond the date of entry. At Changi Airport (SIN), immigration stamps your passport. Changi has 4 terminals and the Jewel complex, with a 40-meter indoor waterfall, shops, and gardens connecting Terminals 1, 2, and 3.

Singapore is a city-state of 5.9 million people on an island of 733 square kilometers. Hawker centres are the heart of Singapore's food culture: 114 centres serve dishes from $2 to $6 SGD. Chinatown's Maxwell Food Centre, Lau Pa Sat in the CBD, and Old Airport Road are the most popular. Gardens by the Bay, Marina Bay Sands, and the ethnic quarters of Chinatown, Little India, and Kampong Glam form the main tourist circuit. English is one of four official languages and is used in all government, business, and signage.

Direct flights from New York JFK to Singapore run about 18 hours 30 minutes on Singapore Airlines (one of the world's longest nonstop routes). Los Angeles to SIN runs about 17 hours 30 minutes on Singapore Airlines and United. San Francisco also has nonstop service. Singapore uses the Singapore dollar (SGD), trading at roughly 1.34 SGD per $1. Card and contactless payments work everywhere. The EZ-Link card covers the MRT (6 lines, 187 stations), buses, and some retail purchases at SGD 1.09 to SGD 2.21 per MRT ride. Changi Airport's MRT station connects to the city center in 30 minutes for about SGD 2 ($1.50). Grab is the dominant ride-hailing app.

Getting to SFO

BART (Bay Area Rapid Transit) runs from downtown San Francisco (Embarcadero, Powell St.) to the SFO station and then a free AirTrain shuttle to all terminals (30–40 min from Embarcadero, $10.45). BART also connects Oakland and Berkeley; useful for East Bay travelers. Trains run from ~4am to midnight.Taxis from downtown San Francisco cost $40–60. Ride-hails (Uber, Lyft) pick up in the designated area in the garage and are often $30–50 depending on surge pricing. SamTrans buses serve Peninsula cities. Highway 101 and I-280 are heavily congested during commute hours; BART is faster than driving at those times.

Getting from SIN

MRT from T1/T2/T3 to City Hall takes about 30 minutes (S$2.20–2.50 with EZ-Link card). Trains run from 5:31am to midnight. For Terminal 4, take the free inter-terminal shuttle bus to T2 first.

Taxis from arrivals cost S$20–35 to Orchard or Marina Bay, including airport surcharge (S$5) and possible peak surcharges. Grab is cheaper and very reliable in Singapore. Coach buses serve Johor Bahru (Malaysia) from the airport.

Singapore Climate

Equatorial climate with no true seasons, hot (26–33°C) and humid year-round. Changi is one of the most reliable airports in Asia for flight operations: thunderstorm cells are intense but brief, typically clearing within 1–2 hours. Most delays are weather-related and short.

Northeast monsoon (November–January) brings the most consistent rain, sometimes for days at a time. Haze from Indonesian forest fires (typically August–October) occasionally reduces visibility and triggers air quality warnings, but rarely grounds flights. Changi's operational efficiency means it handles weather disruptions better than most airports its size.

SFO–SIN Quick Facts

Key statistics for the San Francisco to Singapore route.
Route details
Distance8,440 mi / 13,581 km
Flight time16h 25m
Time difference+15 hours
Airlines (nonstop)2
Weekly flights28 out / 29 return
1-stop connectionsAvailable
Origin: SFO
IATA / ICAOSFO / KSFO
TimezoneAmerica/Los_Angeles
Passengers/yr50.2M
Elevation13 ft / 4 m
Destination: SIN
IATA / ICAOSIN / WSSS
TimezoneAsia/Singapore
Passengers/yr67.7M
Elevation22 ft / 7 m

Frequently Asked Questions

Common questions about SFO to SIN flights.
Nonstop flights from San Francisco International Airport to Singapore Changi Airport take about 16h 25m gate to gate. The route covers 8,440 miles.
2 airlines operate flights from SFO to SIN: Singapore Airlines and United Airlines.
This route has daily service. Check the schedule above for departure days and times in each direction.
Yes, 1-stop connections are available, ranked by layover time. Common connecting points include Xiamen Gaoqi, Taiwan Taoyuan and Ninoy Aquino.
Singapore is 15 hours ahead of San Francisco.
Yes, return flights from SIN to SFO are available. Use the direction toggle at the top to view the return schedule.
Click the 'Search Flights' button to check availability and prices on Google Flights. You can also compare airlines and schedules on this page to find the best option.
See the On-Time Performance section for the latest delay data at both airports. This shows departure and arrival reliability to help you plan.
Route data is updated regularly from official airline schedules. On-time performance data comes from recent airport delay snapshots.

Flights from SFO to SIN

San Francisco International Airport (SFO) and Singapore Changi Airport (SIN) are connected by nonstop service from Singapore Airlines and United Airlines. With 28 weekly departures, this is a heavily served route.

SFO to SIN Flight Duration and Schedule

Nonstop flight time from SFO to SIN is about 16 hours 25 minutes gate to gate. The route covers a distance of 8,440 miles (13,581 km). There are approximately 28 weekly flights outbound and 29 return, totaling 57 flights per week in both directions.

Connecting Options and Alternatives

1-stop connecting options are also available, commonly via Xiamen Gaoqi, Taiwan Taoyuan and Ninoy Aquino. Two-stop connections are also available via intermediate hubs.