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.
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.
Chicago, United States · ORD · #2 in this comparison
Chicago O'Hare International Airport (ORD) scores 7.4/10 (Very Good)
on FlightLogic's airport index — combining on-time performance (7.0),
passenger experience (7.2), and facilities (7.8).
Lounge quality rates 8.0/10. See full airport guide →
In short
Chicago O'Hare (ORD) scores 7.4/10 on FlightLogic with lounge score 8.0/10. All international flights depart Terminal 5 — alliance lounges serve Star Alliance and oneworld partners. United Polaris is in Terminal 1 only. See /guides/ord-airport-lounge-guide.
FlightLogic Score7.4Very Good
On-time7.0Departure reliability
Experience7.2Staff, queues, cleanliness
Facilities7.8Food, shops, seating
Lounges8.0Lounge 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
7.0
Passenger Experience
7.2
Facilities & Comfort
7.8
Lounge score8.0/10
Highlights
Terminal 5 handles all international departures — Star Alliance, oneworld, and SkyTeam alliance lounges
United Polaris Lounge in Terminal 1 for United long-haul business class — not reachable airside from T5
Common connection point for UK–US domestic and UK–Asia routings via United and American
ORD people mover links terminals landside — plan 60+ minutes for terminal changes
Overview
United Airlines and American Airlines mega-hub — Terminal 5 international departures with Star Alliance and oneworld lounges for transatlantic connections.
Terminal 5 international hub
Terminal 5 consolidates international departures with Swissport-operated alliance lounges for Star Alliance, oneworld, and SkyTeam. United and American domestic connections require landside terminal transfer and re-security.
UK travellers connecting to US domestic flights should allow 2+ hours minimum for immigration, baggage reclaim if not interlined, and re-check.
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