How to Use the Layover Safety Checker
Select your connecting airport and enter your layover duration. The tool compares it against that airport's minimum connection time (MCT) and gives you a safe, tight, or risky verdict with advice.
Why MCT Varies by Airport
Larger airports with multiple terminals — like London Heathrow, Paris CDG, or Los Angeles LAX — require more transit time between gates. US airports require all arriving international passengers to clear customs and immigration before connecting, which adds 60–90 minutes. Compact airports like Amsterdam Schiphol or Frankfurt can be navigated faster.
Separate Tickets vs. One Itinerary
If you booked both flights on a single itinerary, your airline will rebook you if you miss a connection due to their delay. If you booked separately (e.g., mixing airlines or booking trips individually), you bear the full risk. For separate bookings, add at least 30–60 extra minutes beyond the minimum and purchase travel insurance that covers missed connections.
Frequently Asked Questions
Yes, significantly. At US airports, all international arrivals must clear CBP (Customs and Border Protection) before connecting — even if your final destination is outside the US. This typically takes 30–90 minutes. Always add this to your MCT estimate when transiting through the US.
Long layovers give you options. Many airports offer transit hotels, day rooms, or free city tours for long-haul stopover passengers. Singapore Changi and Incheon are especially well-known for extensive transit amenities.