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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

Incheon International Airport (ICN) scores higher overall at 9.3/10 versus London Gatwick Airport (LGW) at 6.8/10.

Score comparison

Metric Incheon International Airport London Gatwick Airport
FlightLogic Score 9.3 6.8
On-Time Performance 9.2 6.5
Passenger Experience 9.4 6.7
Facilities & Comfort 9.3 7.2
Lounge Score 8.8 6.5
City Seoul London
Country South Korea United Kingdom
Terminals 2 terminals North & South terminals
Annual passengers 68M+ 43M+

Operational comparison

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

Policy ICN — Incheon LGW — London
Rail / public transport AREX express and all-stop train; airport limousine busesGatwick Express, Thameslink, Southern — South Terminal station
To city centre 43 min express to Seoul Station~30 min Gatwick Express to Victoria
Lounge day pass KRW 50,000–70,000; Priority Pass at KAL/ASiana lounges (capacity limits)£40–£50; No1 Lounge accepts Priority Pass (pre-book peak)
Min. connection time 60–90 min inter-terminal (T1 ↔ T2 shuttle train)45–60 min same terminal; 30–45 min inter-terminal shuttle
Primary hub carriers Korean Air (T1), Asiana (T1), Star Alliance (T2)easyJet, TUI, Jet2, Virgin Atlantic (select), BA short-haul

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 · LGW · #2 in this comparison

London Gatwick Airport

North & South terminals · 43M+ passengers/year

6.8 / 10

How good is London Gatwick Airport?

London Gatwick Airport (LGW) scores 6.8/10 (Good) on FlightLogic's airport index — combining on-time performance (6.5), passenger experience (6.7), and facilities (7.2). Lounge quality rates 6.5/10. See full airport guide →

In short

Gatwick (LGW) is London's second airport with North and South Terminals linked by a free shuttle. It handles mainly leisure and low-cost traffic (easyJet, TUI, Jet2, Virgin on select routes). The Gatwick Express reaches Victoria in ~30 minutes. Lounge options include No1 Lounge in both terminals (Priority Pass eligible, but pre-book at peak times). UK261 applies to all departing Gatwick flights.

FlightLogic Score 6.8 Good
On-time 6.5 Departure reliability
Experience 6.7 Staff, queues, cleanliness
Facilities 7.2 Food, shops, seating
Lounges 6.5 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
6.5
Passenger Experience
6.7
Facilities & Comfort
7.2
Lounge score 6.5/10

Highlights

  • World's busiest single-runway airport, handling roughly 43 million passengers in 2025, split across North and South Terminals linked by a free shuttle
  • South Terminal train station offers the non-stop Gatwick Express to London Victoria (as fast as ~30 minutes) plus Southern and Thameslink services
  • Ten lounges across both terminals, including No1 Lounge (South and North), Club Aspire South, and Plaza Premium North with panoramic runway views

Overview

Gatwick is London's second airport and the world's busiest single-runway airport, moving passengers efficiently between its North and South Terminals via a free shuttle, with the South Terminal train station offering fast rail access into central London. It holds a solid but unspectacular rating, reflecting decent facilities and lounges that trail Heathrow's premium offering.

Terminals and getting around Gatwick

Gatwick operates two terminals — North and South — connected by a free, fully automated shuttle train that takes about two minutes. The South Terminal is the busier of the two and houses the railway station, so most passengers arriving by train start there. easyJet, Gatwick's dominant carrier, splits operations across both terminals, so always check which one your flight departs from before arriving.

As the world's busiest single-runway airport, Gatwick runs a tightly scheduled operation. Security can be busy at peak leisure times (early mornings and school holidays), so the airport recommends arriving two to three hours before departure. Both terminals offer fast-track security for a fee or via premium tickets and select lounges.

Getting to and from London

The Gatwick Express runs non-stop to London Victoria in around 30 minutes, while Thameslink services connect directly to London Bridge, Blackfriars, St Pancras, and on to Luton — useful for cross-London and airport-to-airport journeys without changing. Southern services add more central and south London stops at lower fares. The station sits inside the South Terminal.

National Express and other coaches serve Gatwick from across the UK, and the airport is directly on the M23/M25 motorway network. Rail is almost always faster and cheaper than a taxi to central London, which can take over an hour in traffic and cost significantly more.

Lounges and where Gatwick sits versus Heathrow

Gatwick's lounge scene is independent-led rather than airline-flagship: the No1 Lounge (both terminals), Clubrooms, My Lounge, and the Grain Store are the main options, most accepting Priority Pass, DragonPass, or paid day passes. British Airways operates a lounge in the South Terminal for its short-haul premium and status passengers. None match the scale of Heathrow's BA Concorde Room or Virgin Clubhouse.

For a like-for-like decision between London's two main airports, see our Gatwick vs Heathrow comparison. In short: Heathrow wins on long-haul network, premium lounges, and connection options; Gatwick often wins on leisure routes, lower parking costs, and a simpler two-terminal layout.

FAQ

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

Incheon International Airport (ICN) scores higher overall at 9.3/10 versus London Gatwick Airport (LGW) at 6.8/10.

Which has better lounges, ICN or LGW?

Incheon International Airport (ICN) scores higher for lounges at 8.8/10, versus London Gatwick Airport at 6.5/10.

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

Incheon International Airport (ICN) has stronger on-time performance at 9.2/10 versus London Gatwick Airport (LGW) at 6.5/10.