LHR · London · Terminal T3
Cathay Pacific Check-in at London Heathrow Airport
Cathay Pacific departs from Terminal T3 at London Heathrow Airport. Online check-in opens 48h before departure.
Cathay Pacific check-in rules at LHR
Step-by-step at London Heathrow Airport
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Check in online
Open the Cathay Pacific app or website 48 hours before departure. Save the boarding pass to your phone wallet.
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Arrive at Terminal T3
Cathay Pacific flights at LHR depart only from Terminal T3. Allow 120 minutes from arrival to gate.
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Drop off bags at T3 main hall
Bag-drop 3 hours before departure, closes 60 minutes before departure. Self-service kiosks available.
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Clear security
Submit your wait time on the airport page above to help others. Standard liquids rule: 100 ml in a single transparent bag.
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Walk to gate T3 gates 1–46
Allow 10–20 minutes from security to your gate. Boarding starts 45 minutes before departure; gate closes 25 minutes before.
Boarding Cathay Pacific at LHR
Terminal T3 notes
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Typical gates
Cathay Pacific flights typically depart from gates T3 gates 1–46.
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Walk time
Expect 10–20 minutes from security to the furthest gate.
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Eat & shop
T3 has Caviar House, Gordon Ramsay's Plane Food, World Duty Free. Solid food selection.
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Lounges
Cathay Pacific Lounge LHR T3 (Business + Marco Polo Gold + OneWorld Sapphire). Premium-rated facility.
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Family / accessibility
Family priority lane. Stroller drop at gate. Cathay offers free children's bag with toys.
Known issues at LHR with Cathay Pacific
BA-Cathay JV codeshare confusion
Problem: BA-numbered flights LHR-HKG are operated by Cathay (joint venture). Online check-in must use the operating airline.
Solution: Check 'Operated by'. If CX, use cathaypacific.com; if BA, use ba.com (T5).
Estimate your EU 261 compensation
Flights to/from the EU, delayed 3+ hours or cancelled with less than 14 days' notice, are eligible for €250–€600 in compensation. Check your eligibility in 60 seconds: