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

Athens International Airport (ATH) scores higher overall at 7.6/10 versus Chicago O'Hare International Airport (ORD) at 7.4/10. Chicago O'Hare International Airport leads on lounges at 8.0/10.

Score comparison

Metric Athens International Airport Chicago O'Hare International Airport
FlightLogic Score 7.6 7.4
On-Time Performance 7.4 7.0
Passenger Experience 7.5 7.2
Facilities & Comfort 7.9 7.8
Lounge Score 7.8 8.0
City Athens Chicago
Country Greece United States
Terminals 1 terminal (main + satellite) 4 terminals (T1–T3 domestic, T5 international)
Annual passengers 28M+ 73M+

Operational comparison

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

Policy ATH — Athens ORD — Chicago
Rail / public transport
To city centre
Lounge day pass
Min. connection time
Primary hub carriers

Detailed profiles

Athens, Greece · ATH · #1 in this comparison

Athens International Airport

1 terminal (main + satellite) · 28M+ passengers/year

7.6 / 10

How good is Athens International Airport?

Athens International Airport (ATH) scores 7.6/10 (Very Good) on FlightLogic's airport index — combining on-time performance (7.4), passenger experience (7.5), and facilities (7.9). Lounge quality rates 7.8/10. See full airport guide →

In short

Athens ATH scores 7.6/10 — Greece's main hub. Metro to city ~40 min. Aegean Star Alliance gateway for island connections. See /guides/best-airlines-uk-portugal-greece-2026 and /guides/athens-airport-lounge-guide-2026.

FlightLogic Score 7.6 Very Good
On-time 7.4 Departure reliability
Experience 7.5 Staff, queues, cleanliness
Facilities 7.9 Food, shops, seating
Lounges 7.8 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
7.4
Passenger Experience
7.5
Facilities & Comfort
7.9
Lounge score 7.8/10

Highlights

  • Primary UK gateway to Athens and mainland Greece — ferry connections to islands from Piraeus
  • Aegean Airlines hub — Star Alliance connections to Santorini, Mykonos, Crete (domestic)
  • Metro Line 3 to Syntagma ~40 min — reliable city access
  • Aegean Business Lounge and Goldair lounge — Priority Pass accepted

Overview

Greece's primary hub — Aegean/Star Alliance gateway with dense UK schedule on BA, easyJet, Jet2, Ryanair, and Aegean for mainland and island connections.

Islands and UK routing

Many UK travellers fly to ATH then connect domestically to Santorini (JTR) or Crete (HER) on Aegean or Ryanair — allow 2+ hours for international-to-domestic connections.

Direct UK–island seasonal routes exist on Jet2 and TUI in summer — compare total time vs ATH connection.

Chicago, United States · ORD · #2 in this comparison

Chicago O'Hare International Airport

4 terminals (T1–T3 domestic, T5 international) · 73M+ passengers/year

7.4 / 10

How good is Chicago O'Hare International Airport?

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-2026.

FlightLogic Score 7.4 Very Good
On-time 7.0 Departure reliability
Experience 7.2 Staff, queues, cleanliness
Facilities 7.8 Food, shops, seating
Lounges 8.0 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
7.0
Passenger Experience
7.2
Facilities & Comfort
7.8
Lounge score 8.0/10

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.

FAQ

Which is better, Athens International Airport or Chicago O'Hare International Airport?

Athens International Airport (ATH) scores higher overall at 7.6/10 versus Chicago O'Hare International Airport (ORD) at 7.4/10. Chicago O'Hare International Airport leads on lounges at 8.0/10.

Which has better lounges, ATH or ORD?

Chicago O'Hare International Airport (ORD) scores higher for lounges at 8.0/10, versus Athens International Airport at 7.8/10.

Which airport is more on-time, ATH or ORD?

Athens International Airport (ATH) has stronger on-time performance at 7.4/10 versus Chicago O'Hare International Airport (ORD) at 7.0/10.