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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.
San Francisco International Airport vs London Stansted Airport
Detailed comparison of SFO and STN on FlightLogic scores and passenger experience.
Verdict
San Francisco International Airport (SFO) scores higher overall at 7.8/10 versus London Stansted Airport (STN) at 6.9/10.
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.
London, United Kingdom · STN · #2 in this comparison
London Stansted Airport (STN) scores 6.9/10 (Good)
on FlightLogic's airport index — combining on-time performance (6.7),
passenger experience (6.8), and facilities (7.0).
Lounge quality rates 6.8/10. See full airport guide →
In short
London Stansted (STN) is rated 6.9/10 on FlightLogic — primarily a Ryanair and Jet2 leisure hub. Stansted Express to Liverpool Street ~45 min. Escape Lounge for Priority Pass. UK261 covers all departures. See /guides/stansted-airport-lounge-guide-2026.
FlightLogic Score6.9Good
On-time6.7Departure reliability
Experience6.8Staff, queues, cleanliness
Facilities7.0Food, shops, seating
Lounges6.8Lounge 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
6.7
Passenger Experience
6.8
Facilities & Comfort
7.0
Lounge score6.8/10
Highlights
Ryanair's largest UK base — dominant low-cost hub for Europe and Mediterranean leisure routes
Stansted Express reaches London Liverpool Street in ~45 minutes — fastest rail link among London secondary airports
UK261 applies to all UK-departing flights — including Ryanair and Jet2
Overview
London's third airport and Ryanair's largest UK base — single-terminal design, Stansted Express to Liverpool Street, and Escape Lounge for Priority Pass holders.
Ryanair hub and low-cost operations
Stansted is Ryanair's largest UK base, handling the majority of Europe and Mediterranean leisure traffic from London's eastern corridor. easyJet and Jet2 also operate significant schedules. For UK travellers chasing lowest fares, STN often undercuts Gatwick and Luton on the same routes — but factor in Stansted Express rail costs and strict Ryanair baggage rules.
UK261 compensation applies to all flights departing Stansted regardless of fare paid. A 3+ hour arrival delay on a UK-regulated flight triggers £220–£520 per passenger if the delay was the airline's fault.
Getting to central London
Stansted Express runs to Liverpool Street every 15 minutes at peak, taking ~45 minutes. National Express coaches serve Victoria and other London terminals — often cheaper but slower in traffic. Uber/Bolt use signed ride-app zones landside.
Compare STN against Gatwick (/airports/gatwick) and Luton for your route — Stansted wins on Ryanair frequency; Gatwick wins on Virgin long-haul and lounge depth.
FAQ
Which is better, San Francisco International Airport or London Stansted Airport?
San Francisco International Airport (SFO) scores higher overall at 7.8/10 versus London Stansted Airport (STN) at 6.9/10.
Which has better lounges, SFO or STN?
San Francisco International Airport (SFO) scores higher for lounges at 8.3/10, versus London Stansted Airport at 6.8/10.
Which airport is more on-time, SFO or STN?
San Francisco International Airport (SFO) has stronger on-time performance at 7.5/10 versus London Stansted Airport (STN) at 6.7/10.
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