Layover Calculator
Check whether your connection time is enough by comparing it to the minimum connection time for your flight type, terminal change and bag re-check. Calculates in your browser.
Verdict
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Show the math
Each connection has a minimum connection time. We start from a base, then add time if you must change terminals or collect and re-check bags:
needed = base (45 dom / 90 intl) + 20 if changing terminals + 30 if re-checking bags
Your buffer is the scheduled layover minus that minimum. Under 30 minutes of buffer is risky; an hour or more is comfortable.
Airports publish their own minimum connection times, check yours for tight transfers. Everything is calculated in your browser.
What this does
A layover calculator checks whether your connection time is enough by comparing it to the minimum connection time for your flight type, terminal change, and bag re-check.
How to use it
- Enter your layover length.
- Choose domestic or international.
- Flag terminal changes and bag re-checks.
- Read whether the buffer is safe.
How it works
Start from ~45 min domestic or ~90 international, add 20 for a terminal change and 30 to re-check bags. Under 30 min of buffer is risky; an hour-plus is comfortable.
buffer = layover − minimum connection time
Understanding your result
The buffer over the minimum connection time is the number that matters: under about 30 minutes is risky, while an hour or more is comfortable. A terminal change, a bag re-check, or clearing immigration on an international connection all eat into it, so when the buffer is thin, weigh the cost and hassle of a missed connection against booking a longer layover.
Example
A 120-minute international layover with no terminal change leaves a 30-minute buffer over the 90-minute minimum.
Sources & methodology
Last updated .
Frequently asked questions
How much layover do I need?
Start from a base (about 45 minutes domestic, 90 international), add 20 minutes if you change terminals and 30 if you must collect and re-check bags.
What counts as a risky layover?
Less than 30 minutes of buffer over the minimum is risky; an hour or more is comfortable. A negative buffer means it is likely not enough.
Where do I find the official minimum?
Airports publish their own minimum connection times. Use this as a sanity check, especially for tight or international transfers.
Is my data kept?
No. Everything is computed locally in your browser.
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