Connections & Layovers
Choosing Better Layovers
A connection is a bet on two flights and one airport. Some bets are much better priced than others.
Elena Vasquez · April 13, 2026 · 8 min read
Search engines sort by price and total duration. Neither of those numbers tells you whether the connection will work. A 55 minute transfer at a compact airport with one terminal is safer than three hours at an airport where you change terminals, clear immigration and recheck a bag.
What makes a connection risky
- Terminal changes, especially where landside transit is required.
- Immigration on the way through, which applies at every first point of entry into the United States and at several other airports.
- Baggage recheck, which turns a transfer into a mini arrival and departure.
- Separate tickets, which remove all protection regardless of how much time you leave.
- The last flight of the day onward, since a missed connection becomes an overnight rather than a two hour wait.
- Weather exposed hubs in the wrong season, where the entire day can cascade.
| Connection type | Published minimum | What to actually plan |
|---|---|---|
| Same terminal, same airline, domestic | 30 to 40 minutes | 60 minutes |
| Same terminal, international to international | 45 to 60 minutes | 90 minutes |
| Terminal change, single ticket | 60 to 90 minutes | 2 hours |
| Entering the United States and connecting | 90 minutes | 2 hours 30 |
| Separate tickets, no bags | Not protected | 3 hours |
| Separate tickets, checked bags | Not protected | 4 hours or overnight |
Airports that forgive, and airports that do not
Some hubs are genuinely easy. Amsterdam Schiphol has one terminal and a compact layout. Singapore Changi, Doha, Helsinki, Zurich and Munich are all straightforward. Copenhagen and Vienna are small enough that an hour is comfortable.
Others need real time. London Heathrow's terminal transfers can take 45 minutes on their own. Paris Charles de Gaulle's terminal 2 is a sprawling complex where the walk between subterminals is substantial. Newark, Los Angeles and Toronto Pearson all involve significant distances, and Toronto adds US preclearance for onward American flights, which is excellent on arrival and slow on departure.
The single ticket rule
If everything is on one ticket, the airline owns the connection. A delay on the first sector obliges them to rebook you, feed you, and accommodate you overnight where the rules require it. If the flights are on separate tickets, a missed connection is entirely your problem and your cost.
This is worth real money. A single ticket that costs 80 euros more than two separate ones is usually the better buy, because the downside on the separate tickets is the full price of a replacement flight plus a hotel.
01
Check the ticket count, not the booking count
One booking reference can still contain two tickets. Look for a single ticket number covering all sectors.
02
Check who operates each sector
Mixed operators are fine on one ticket, and problematic on two.
03
Check whether bags are through checked
The airline will tell you at check in. If they cannot tag through to the final destination, treat the connection as separate.
04
Look at the onward frequency
If there are five later flights, a missed connection is an inconvenience. If there is one a day, it is a lost day.
05
Check the aircraft's inbound rotation if the margin is thin
Flight tracking sites show where your aircraft is coming from. A late inbound is the most reliable predictor of a late departure.
Making a long layover useful
- Six hours or more is enough to leave the airport at many hubs, provided the entry rules allow it and the ground transport is quick.
- Cities that work well for this include Singapore, Doha, Amsterdam, Reykjavik, Lisbon and Seoul, all with fast rail or metro links.
- Airport lounges can usually be bought by the hour without status, and are cheaper than a day room.
- Several large airports have airside hotels or sleeping pods, which avoid the immigration question entirely.
- Left luggage exists at most major airports if you want to explore without a cabin bag.
Traveler notes
- Book the earliest reasonable departure. It gives you the rest of the day as a buffer.
- Avoid connecting through a hub that is having a bad week. Airline operational problems are widely reported and worth two minutes of searching.
- If you must take a tight connection, sit near the front and travel with cabin baggage only.
- Download the airline app and enable notifications. Gate changes reach the app before the departure boards update.
- Know your onward options before you land. Arriving at the transfer desk already knowing which flight you want puts you ahead of everyone in the queue.
Frequently asked
Will the airline hold the connecting flight for me?
Occasionally, when a large group is connecting and the delay is short. Never assume it. Airlines weigh the cost of the delay against the cost of rebooking a handful of passengers.
What if I booked separate tickets and miss the second flight?
You are a no show on that ticket and it is normally forfeited. Contact the second airline before the departure time, since a few will treat it as a paid change rather than a total loss.
Is a longer layover always safer?
Up to a point. Beyond about four hours you are mainly adding fatigue rather than protection, unless the extra time buys you a later flight option.
Do I need a visa for a layover?
Airside transit is visa free in most places for most nationalities, with notable exceptions including the United States, Canada and the United Kingdom, which require transit permission for many passport holders. Check before booking.
Read next
- Europe to Asia: Comparing the Connection OptionsThere is no single best hub between Europe and Asia. There is a best hub for your specific city pair, and it is usually obvious once you look at a map.
- Avoiding Long Immigration QueuesImmigration is a capacity problem with a predictable rhythm. A little knowledge about the rhythm saves a lot of standing.
- Changing Flights During Severe WeatherWeather disruption is the one category where speed genuinely beats knowledge. The rules are simple, the timing is everything.