Routing & planning
Layover vs stopover vs connection
Three words for the gap between flights, with different definitions, different fare consequences, and different rules about leaving the airport.
Published 17 February 2026 · Updated 6 September 2026
These three terms are used interchangeably in conversation and precisely in ticketing. The precise meanings determine what you pay and what you are allowed to do.
Connection
The generic term: any point where you change aircraft. Every layover and every stopover is a connection. The word says nothing about duration.
Layover
A connection under 24 hours on an international itinerary — under 4 hours domestically, by most airlines’ definitions. It is a normal part of getting from A to C via B, and it does not change the fare.
You usually stay airside. Whether you can leave depends on the airport, the length of the gap and whether you need a transit visa.
Stopover
A connection over 24 hours internationally. This is a deliberate break in the journey, and ticketing treats it as a distinct thing: it may cost extra, may be free, and on some airlines is actively promoted.
Several carriers run stopover programmes — Icelandair in Reykjavík, Qatar Airways in Doha, Emirates in Dubai, Turkish Airlines in Istanbul, Singapore Airlines in Singapore — sometimes bundling hotel nights. If your routing passes through one of those hubs anyway, a stopover can add a destination for very little.
The 24-hour line
| Layover | Stopover | |
|---|---|---|
| Duration (international) | Under 24 hours | Over 24 hours |
| Fare impact | None | May add cost, sometimes free |
| Counts as a destination | No | Yes |
| Baggage | Usually checked through | Usually collected |
| Typical purpose | Getting there | Seeing somewhere |
The line matters because it is what fare rules key on. A 23-hour gap and a 25-hour gap can be different products at different prices.
Minimum connection time
Every airport publishes a minimum connection time — the shortest gap it considers workable — and it varies by the kind of connection:
- Domestic to domestic, same terminal: often 30–45 minutes
- Domestic to international: typically 60–90 minutes
- International to international with a terminal change: 90 minutes or more
- Anywhere requiring immigration, bag reclaim and re-check: two hours is realistic
Booking systems will not sell you a single-ticket connection below the published minimum. They will happily let you build one below it across two separate tickets, and that is where people come unstuck.
Self-transfer
A connection you construct from two separate tickets. The airline on the first leg does not know about the second and has no obligation if you miss it.
If you self-transfer, plan for:
- Collecting and re-checking bags
- Clearing immigration and customs, then security again
- Possibly changing terminals or airports
- Buying a new ticket entirely if the first flight is late
Some booking sites now sell self-transfer itineraries with their own protection guarantee. Read what it actually covers — cover varies from a rebooking to a partial refund.
Leaving the airport
Whether you can leave during a connection depends on:
Transit visa rules. Some countries require a visa even to change planes airside. Others allow visa- free entry for short transits. This is nationality-specific and route-specific — check the official source for your passport and your connecting country.
Time. A useful rule is that you need the gap to exceed the minimum connection time by at least three hours before leaving the airport is realistic.
Baggage. If bags are checked through, you cannot easily collect them for a few hours out.
Airport location. Some hubs are 15 minutes from the city; others are an hour each way.
Overnight connections
An overnight layover means either a hotel or a night in the terminal. Worth checking:
- Whether the terminal is open all night — several close
- Whether the airline provides a hotel for a long forced connection, which some do when the gap is a consequence of their schedule
- Whether an airport hotel is airside, avoiding an immigration round trip
The time-zone trap
Connection times must be computed in the connecting airport’s local time, using the arrival and departure times as the itinerary shows them. Since both are already local to that airport, the subtraction is straightforward — but only if you resist converting anything.
The mistake is comparing a departure time in one zone with an arrival time in another. See flight time zones explained, and use the time zone planner when the arithmetic gets awkward.