Layover Time Calculator
Whether your connection time is comfortable, tight, or risky, by connection type.
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About the Layover Time Calculator
Assesses whether a connecting-flight layover is comfortable, tight, or risky, based on commonly cited minimum-connection-time guidance for domestic vs. international connections and same-terminal vs. terminal-change scenarios.
- Enter your layover length in minutes.
- Select whether it's a domestic or international connection.
- Select whether you need to change terminals.
- Read the comfortable/tight/risky assessment.
A 75-minute domestic connection with no terminal change: falls between the roughly 45-minute minimum and 90-minute comfortable threshold — assessed as 'Tight.'
| Scenario | Minimum | Comfortable |
|---|---|---|
| Domestic, same terminal | 45 | 90 |
| Domestic, terminal change | 60 | 105 |
| International arrival, same terminal | 90 | 150 |
| International arrival, terminal change | 120 | 180 |
These are commonly cited planning thresholds, not a guarantee. An on-time arrival, average queue lengths, and typical walking distances are all assumed. When in doubt, book more time than the minimum, especially for international connections.
- • International connections need meaningfully more time due to customs/immigration and bag rechecking.
- • Airports under active construction commonly need more buffer than the general guidance here.
- • A 'risky' or 'tight' assessment doesn't guarantee you'll miss the connection.
- Autopilot — Minimum Connection Time: The Complete 2026 Guide — accessed 2026-08-30