Know Before You Go: Airline Luggage Size Guidelines
INSPIRATION
By Mark Cameron
August 2026
Before heading to the airport, it’s essential to understand your airline’s luggage size and weight restrictions. Each carrier has its own rules for carry-on and checked bags, and exceeding those limits can lead to unexpected fees or delays. Whether you’re packing light for a weekend getaway or checking bags for an international trip, always double-check the dimensions and weight allowed. A little planning ensures a smoother travel experience and helps you avoid last-minute surprises at the gate.
If you’re flying into the UK, make sure your baggage meets airline requirements to avoid surprises at check-in. Here’s a handy guide for carry-on and checked baggage allowances for major international airlines serving UK destinations like London Heathrow, Manchester, Edinburgh, and more.
Tips for UK-Bound Travelers
“Linear inches” = length + width + height.
Weight limits vary by cabin class (economy, premium, business).
Check-in early: Baggage checks can take longer at busy UK airports like Heathrow.
Strict enforcement: UK-bound flights often weigh carry-ons at the gate—especially with European carriers.