FlightLogic

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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.

Verdict

London Heathrow Airport (LHR) scores higher overall at 7.8/10 versus San Francisco International Airport (SFO) at 7.8/10. San Francisco International Airport is more reliable for on-time departures (7.5/10).

Score comparison

Metric London Heathrow Airport San Francisco International Airport
FlightLogic Score 7.8 7.8
On-Time Performance 7.1 7.5
Passenger Experience 7.6 7.7
Facilities & Comfort 8.7 8.2
Lounge Score 8.5 8.3
City London San Francisco
Country United Kingdom United States
Terminals 4 terminals (T2–T5) 4 terminals (T1–T3 domestic, International Terminal A & G)
Annual passengers 83M+ 50M+

Operational comparison

Transport links, lounge access, connection times, and UK261 eligibility — verify locally before travel.

Policy LHR — London SFO — San
Rail / public transport Elizabeth line, Heathrow Express, Piccadilly line — all terminals
To city centre 15 min (Heathrow Express) to 45 min (Elizabeth line off-peak)
Lounge day pass £40–£55 walk-up; Priority Pass at Plaza Premium/Aspire
Min. connection time 60–90 min inter-terminal; 75 min+ landside transfer
Primary hub carriers British Airways (T5), Virgin Atlantic (T3), Star Alliance (T2)

Detailed profiles

London, United Kingdom · LHR · #1 in this comparison

London Heathrow Airport

4 terminals (T2–T5) · 83M+ passengers/year

7.8 / 10

How good is London Heathrow Airport?

London Heathrow Airport (LHR) scores 7.8/10 (Very Good) on FlightLogic's airport index — combining on-time performance (7.1), passenger experience (7.6), and facilities (8.7). Lounge quality rates 8.5/10. See full airport guide →

In short

Heathrow (LHR) is the UK's main long-haul hub with four terminals, the Elizabeth line and Heathrow Express rail links, and the country's best airline lounges including BA's Concorde Room (T5), Virgin Clubhouse (T3), and Amex Centurion (T3). Allow extra connection time between terminals — transfers require landside bus or train. Under UK261, delays of 3+ hours on departing LHR flights qualify for fixed cash compensation regardless of airline.

FlightLogic Score 7.8 Very Good
On-time 7.1 Departure reliability
Experience 7.6 Staff, queues, cleanliness
Facilities 8.7 Food, shops, seating
Lounges 8.5 Lounge quality
Rating basis Editorial FlightLogic 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
7.1
Passenger Experience
7.6
Facilities & Comfort
8.7
Lounge score 8.5/10

Highlights

  • Four terminals: BA and oneworld dominate Terminal 5; Virgin Atlantic, Delta, and several SkyTeam carriers use Terminal 3; Terminal 2 serves Star Alliance; Terminal 4 handles select oneworld and Gulf carriers
  • Rail access: Elizabeth line to central London (~45 min, off-peak fares from ~£12.80), Heathrow Express to Paddington (~15 min, premium pricing), and Piccadilly line Tube (~50 min, cheapest option)
  • Premium lounges: Concorde Room and Galleries (BA T5), Virgin Clubhouse (T3), Centurion Lounge (T3), Plaza Premium and Aspire across multiple terminals
  • UK261 coverage: any flight departing LHR is covered for delay compensation — claim £220–£520 depending on distance and delay length

Overview

London Heathrow is the UK's primary international hub and Europe's busiest airport by passenger volume, handling around 83 million travellers a year across four active terminals. Its strength is unmatched global connectivity — particularly long-haul routes to North America, the Middle East, and Asia — and a lounge portfolio that includes British Airways' Concorde Room, Virgin Atlantic's Clubhouse, and the American Express Centurion Lounge. Weaknesses are well documented: terminal sprawl, occasional ATC-related delays, and a passenger experience that can feel transactional outside premium cabins.

Terminal guide: which airline flies from where

Terminal 5 is British Airways' fortress hub — virtually all BA long-haul and short-haul flights depart from T5, along with select Iberia services. If you hold BA Gold or are flying Club World or First, the First Wing check-in and Concorde Room are here. Terminal 3 hosts Virgin Atlantic, Delta, Air France, KLM, and several Middle Eastern carriers; it is also where the Amex Centurion Lounge and Virgin Clubhouse sit side by side. Terminal 2 is the Star Alliance terminal (Lufthansa, Singapore Airlines, Air Canada, United on some routes). Terminal 4 handles Cathay Pacific, Malaysia Airlines, Qatar Airways on select rotations, and Royal Jordanian.

Inter-terminal transfers require leaving security unless you are on a through-checked connection with a minimum connection time built into your ticket. The free transit train between terminals runs airside at T2/T3/T5; T4 requires a bus. Budget 60–90 minutes for a landside terminal change.

Getting to and from Heathrow

The Elizabeth line (opened 2022, fully integrated 2023) is now the best value rail option for most central London destinations, running from all terminals through Paddington, Liverpool Street, and Canary Wharf. Off-peak fares are substantially cheaper than the Heathrow Express. The Heathrow Express remains the fastest option to Paddington at 15 minutes but carries a premium fare (£25+ one-way). The Piccadilly line is the budget choice — slower but direct to Zone 1.

National Express and other coach services connect LHR to cities across the UK. Black cabs and ride-hail operate from all terminals; expect £50–£80 to central London depending on traffic. Driving is discouraged: drop-off charges apply and parking is expensive.

Lounge access at Heathrow

Heathrow has the strongest lounge selection of any UK airport. British Airways operates Galleries Club, Galleries First, and the Concorde Room in Terminal 5 — the Concorde Room is restricted to same-day BA First passengers and BA Gold/Gold Guest List members on long-haul Club World. Virgin Atlantic's Clubhouse in Terminal 3 is among the best business lounges in the world, with a la carte dining and spa treatments. The American Express Centurion Lounge in T3 offers cardholders a Michelin-chef-designed menu but no runway views.

Priority Pass and DragonPass holders can access Plaza Premium, Aspire, and Club Aspire lounges across terminals, though quality varies and peak-time entry is not guaranteed. Day passes typically cost £40–£55 walk-up.

San Francisco, United States · SFO · #2 in this comparison

San Francisco International Airport

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 Score 7.8 Very Good
On-time 7.5 Departure reliability
Experience 7.7 Staff, queues, cleanliness
Facilities 8.2 Food, shops, seating
Lounges 8.3 Lounge quality
Rating basis Editorial FlightLogic 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 score 8.3/10

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, London Heathrow Airport or San Francisco International Airport?

London Heathrow Airport (LHR) scores higher overall at 7.8/10 versus San Francisco International Airport (SFO) at 7.8/10. San Francisco International Airport is more reliable for on-time departures (7.5/10).

Which has better lounges, LHR or SFO?

London Heathrow Airport (LHR) scores higher for lounges at 8.5/10, versus San Francisco International Airport at 8.3/10.

Which airport is more on-time, LHR or SFO?

San Francisco International Airport (SFO) has stronger on-time performance at 7.5/10 versus London Heathrow Airport (LHR) at 7.1/10.