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FlightLogic is an independent, advertising-supported information service that lets you compare airlines, airports, hotels, and travel products. We do not provide financial advice and we do not recommend specific products or providers. Links marked * are advertising links and may earn us commission at no extra cost to you — always read the terms of any product before booking or applying. Learn more about how we make money.
Singapore Changi Airport vs San Francisco International Airport
Detailed comparison of SIN and SFO on FlightLogic scores and passenger experience.
Verdict
Singapore Changi Airport (SIN) scores higher overall at 9.6/10 versus San Francisco International Airport (SFO) at 7.8/10.
Singapore Changi Airport (SIN) scores 9.6/10 (Exceptional)
on FlightLogic's airport index — combining on-time performance (9.1),
passenger experience (9.8), and facilities (9.9).
Lounge quality rates 9.4/10. See full airport guide →
In short
Singapore Changi (SIN) is FlightLogic's top-rated airport at 9.6/10, famous for Jewel's Rain Vortex, free transit city tours, and world-class lounges. Singapore Airlines hub with four terminals. On-time score 9.1/10; lounge score 9.4/10. Ideal for long layovers — most transit passengers do not need a visa for airside connections.
FlightLogic Score9.6Exceptional
On-time9.1Departure reliability
Experience9.8Staff, queues, cleanliness
Facilities9.9Food, shops, seating
Lounges9.4Lounge quality
Rating basisEditorialFlightLogic methodology
Score breakdown
Modelled on industry airport indices — on-time data, facilities ratings, and editorial experience signals combined into a single FlightLogic score.
On-Time Performance
9.1
Passenger Experience
9.8
Facilities & Comfort
9.9
Lounge score9.4/10
Highlights
Jewel Changi: 40-metre Rain Vortex indoor waterfall, Canopy Park, and 280+ retail and dining outlets — accessible landside and via Terminal 1 link
Free Singapore city tours (2.5-hour guided tours) for transit passengers with 5.5+ hour layovers — no visa required for most nationalities
Four terminals plus Jewel; Terminal 3 hosts Singapore Airlines SilverKris and Star Alliance lounges; Terminal 1 has Qantas and oneworld lounges
Changi scores 9.6/10 on FlightLogic — highest of all rated airports — with 9.9/10 facilities and 9.8/10 passenger experience
Overview
Repeatedly ranked the world's best airport with Jewel, free city tours, and exceptional transit experience.
Jewel and terminal layout
Jewel Changi opened in 2019 as a standalone lifestyle complex linked to Terminal 1, featuring the 40-metre HSBC Rain Vortex — the world's tallest indoor waterfall — plus Canopy Park, hedge maze, and 280+ shops and restaurants. It is accessible to both departing passengers and visitors without a boarding pass.
Terminal 1 serves Star Alliance carriers including Singapore Airlines long-haul. Terminal 2 handles low-cost and regional carriers. Terminal 3 is SIA's primary long-haul terminal with the best SilverKris lounges. Terminal 4 is a compact automated terminal for regional LCCs.
Lounges at Changi
Singapore Airlines SilverKris Business and First lounges in T2 and T3 are among the world's best, with buffet dining, a la carte options, and shower suites. Star Alliance Gold and business class passengers access these on SIA and partner flights.
Priority Pass holders can access Plaza Premium and SATS lounges across terminals. The Qantas First Lounge in T1 is excellent for oneworld First passengers. Pay-per-use lounge access typically costs SGD 50–70.
San Francisco, United States · SFO · #2 in this comparison
4 terminals (T1–T3 domestic, International Terminal A & G) · 50M+ passengers/year
7.8/ 10
How good is San Francisco International Airport?
San Francisco International Airport (SFO) scores 7.8/10 (Very Good)
on FlightLogic's airport index — combining on-time performance (7.5),
passenger experience (7.7), and facilities (8.2).
Lounge quality rates 8.3/10. See full airport guide →
In short
San Francisco SFO is rated 7.8/10 on FlightLogic with lounge score 8.3/10. United Polaris Lounge in International Terminal G is the premium benchmark for transpacific business class. Centurion Lounge in Terminal 3 serves domestic and some international cardholders. See /guides/sfo-airport-lounge-guide-2026.
FlightLogic Score7.8Very Good
On-time7.5Departure reliability
Experience7.7Staff, queues, cleanliness
Facilities8.2Food, shops, seating
Lounges8.3Lounge quality
Rating basisEditorialFlightLogic methodology
Score breakdown
Modelled on industry airport indices — on-time data, facilities ratings, and editorial experience signals combined into a single FlightLogic score.
On-Time Performance
7.5
Passenger Experience
7.7
Facilities & Comfort
8.2
Lounge score8.3/10
Highlights
United Polaris Lounge in International Terminal G — among the best US airline lounges for transpacific departures
International Terminal A and G host Star Alliance, oneworld, and Centurion Lounge for long-haul passengers
BART train to downtown San Francisco in 30 minutes — preferred over LAX for city access on business trips
Common UK routing via London with BA, Virgin Atlantic, and United non-stops
Overview
West Coast tech gateway — United Polaris hub with strong Asia-Pacific routes and renovated International Terminal lounges.
International Terminal and Polaris
International Terminal G hosts United Polaris Lounge for United long-haul business class and Star Alliance Gold on international departures. Terminal A serves other Star Alliance and oneworld long-haul carriers with alliance lounges.
Airside connections exist between International Terminal A and G — easier than JFK for Star Alliance connections.
FAQ
Which is better, Singapore Changi Airport or San Francisco International Airport?
Singapore Changi Airport (SIN) scores higher overall at 9.6/10 versus San Francisco International Airport (SFO) at 7.8/10.
Which has better lounges, SIN or SFO?
Singapore Changi Airport (SIN) scores higher for lounges at 9.4/10, versus San Francisco International Airport at 8.3/10.
Which airport is more on-time, SIN or SFO?
Singapore Changi Airport (SIN) has stronger on-time performance at 9.1/10 versus San Francisco International Airport (SFO) at 7.5/10.
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