FlightLogic

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.

Advertiser disclosure — how this service works

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

Incheon International Airport (ICN) scores higher overall at 9.3/10 versus London Heathrow Airport (LHR) at 7.8/10.

Score comparison

Metric Incheon International Airport London Heathrow Airport
FlightLogic Score 9.3 7.8
On-Time Performance 9.2 7.1
Passenger Experience 9.4 7.6
Facilities & Comfort 9.3 8.7
Lounge Score 8.8 8.5
City Seoul London
Country South Korea United Kingdom
Terminals 2 terminals 4 terminals (T2–T5)
Annual passengers 68M+ 83M+

Operational comparison

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

Policy ICN — Incheon LHR — London
Rail / public transport AREX express and all-stop train; airport limousine busesElizabeth line, Heathrow Express, Piccadilly line — all terminals
To city centre 43 min express to Seoul Station15 min (Heathrow Express) to 45 min (Elizabeth line off-peak)
Lounge day pass KRW 50,000–70,000; Priority Pass at KAL/ASiana lounges (capacity limits)£40–£55 walk-up; Priority Pass at Plaza Premium/Aspire
Min. connection time 60–90 min inter-terminal (T1 ↔ T2 shuttle train)60–90 min inter-terminal; 75 min+ landside transfer
Primary hub carriers Korean Air (T1), Asiana (T1), Star Alliance (T2)British Airways (T5), Virgin Atlantic (T3), Star Alliance (T2)

Detailed profiles

Seoul, South Korea · ICN · #1 in this comparison

Incheon International Airport

2 terminals · 68M+ passengers/year

9.3 / 10

How good is Incheon International Airport?

Incheon International Airport (ICN) scores 9.3/10 (Exceptional) on FlightLogic's airport index — combining on-time performance (9.2), passenger experience (9.4), and facilities (9.3). Lounge quality rates 8.8/10. See full airport guide →

In short

Incheon (ICN) is Seoul's primary international airport, rated 9.3/10 on FlightLogic — second only to Changi. Known for cleanliness, Culture Experience Zones, and efficient Korean Air/Asiana hub. Two terminals; allow 60–90 minutes for inter-terminal connections. AREX train reaches Seoul in ~43 minutes.

FlightLogic Score 9.3 Exceptional
On-time 9.2 Departure reliability
Experience 9.4 Staff, queues, cleanliness
Facilities 9.3 Food, shops, seating
Lounges 8.8 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
9.2
Passenger Experience
9.4
Facilities & Comfort
9.3
Lounge score 8.8/10

Highlights

  • Culture Experience Zones with free traditional Korean performances, craft workshops, and exhibitions
  • Consistently ranked among the world's cleanest airports — FlightLogic experience score 9.4/10
  • Terminal 2 opened 2018 with Star Alliance carriers; Terminal 1 serves Korean Air and SkyTeam
  • Incheon scores 9.3/10 overall — second-highest on FlightLogic after Changi

Overview

Consistently top-rated for cleanliness, culture programs, and efficient Korean Air/Asiana hub.

Terminals and airlines

Terminal 1 serves Korean Air, Asiana, and SkyTeam carriers. Terminal 2 (opened 2018) serves Star Alliance carriers including Singapore Airlines, United, and Lufthansa. Inter-terminal transfers require the free shuttle train — budget 60–90 minutes for a connection.

Both terminals have extensive dining and shopping, with ICN known for reasonable pricing compared to other major Asian hubs.

Getting to Seoul from Incheon

The AREX (Airport Railroad Express) reaches Seoul Station in 43 minutes on the express service. The all-stop commuter service takes longer but costs less. Airport limousine buses connect to major Seoul districts and hotels.

Taxi fare to central Seoul is approximately KRW 60,000–80,000 depending on traffic and destination.

London, United Kingdom · LHR · #2 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.

FAQ

Which is better, Incheon International Airport or London Heathrow Airport?

Incheon International Airport (ICN) scores higher overall at 9.3/10 versus London Heathrow Airport (LHR) at 7.8/10.

Which has better lounges, ICN or LHR?

Incheon International Airport (ICN) scores higher for lounges at 8.8/10, versus London Heathrow Airport at 8.5/10.

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

Incheon International Airport (ICN) has stronger on-time performance at 9.2/10 versus London Heathrow Airport (LHR) at 7.1/10.