Layovers, Stopovers, and Connections: A Traveler's Glossary
Photo credit: ArticlesHaven.net
In this article
Quick-reference definitions for common itinerary terms so you know exactly what you're booking before you pay.
Why These Terms Matter Before You Book
Flight booking pages use words like "layover," "stopover," and "connection" as if they're interchangeable — they're not. Each term carries a specific meaning that affects your schedule, your bag, and sometimes your ticket price. Misreading one can turn a smooth trip into a missed flight or an unexpected overnight stay.
This glossary cuts through the confusion. Whether you're booking a domestic hop or an international itinerary with multiple segments, the definitions below give you a shared vocabulary with airlines, travel agents, and booking engines so you know exactly what you're agreeing to. For a deeper look at how connections interact with price and risk, see how nonstops and connecting flights compare beyond travel time.
| Layover (short) | Under 4 hours (domestic) or under 24 hours (international) (General industry convention; definitions vary by carrier) |
| Stopover threshold | 24 hours or more at an intermediate city (Common airline and IATA definition) |
| Minimum connection time | Set per airport; ranges from ~30 min to 90+ min (Airport authority and airline scheduling data) |
| Codeshare flight | One physical flight sold under multiple airline codes (IATA codeshare agreement framework) |
| Through fare | A single ticket price covering two or more flight segments (Standard airline ticketing terminology) |
| Open-jaw itinerary | Fly into one city, return from a different city (Standard booking term) |
Core Terms Defined
The glossary below covers the most common itinerary terms you'll encounter on booking sites and airline apps. References within each definition point to related concepts so you can read top-to-bottom or jump to what you need.
Nonstop flight
A flight that travels directly from origin to destination with zero intermediate stops. The aircraft does not land between departure and arrival.
Direct flight
A flight that keeps the same flight number throughout but may make one or more intermediate stops. Passengers may or may not deplane at those stops — always check the itinerary details.
Connecting flight
A journey from origin to destination that requires changing to a different aircraft — and usually a different flight number — at an intermediate airport called the connecting city or hub.
Layover
The time you spend waiting at an intermediate airport between two flight segments. Industry convention generally treats waits under 24 hours as layovers, though the exact threshold varies by carrier and route type.
Stopover
An intentional break in travel at an intermediate city lasting 24 hours or longer. Stopovers are typically booked deliberately and may require a separate hotel stay and, on international routes, passing through customs and immigration.
Minimum connection time (MCT)
The shortest time an airport officially sanctions for a traveler to transfer between two flights. MCTs depend on the airport, terminal layout, and whether you're connecting domestically or internationally.
Open-jaw itinerary
A round-trip booking where you fly into one city but return from a different city, or depart from a different city than your return destination. Useful for multi-city road trips or one-way regional travel.
Through fare
A single negotiated fare that covers the full journey across multiple flight segments, rather than adding up individual one-way fares. Through fares can sometimes be cheaper than piecing together separate tickets.
Segment
Each individual flight leg in an itinerary. A trip with two flights and one layover has two segments.
Self-transfer
A connection the traveler arranges independently using two separate tickets. The airline operating the first flight bears no responsibility for the second flight if a delay causes a missed connection.
Understanding how these terms interact is especially useful when decoding complex multi-carrier itineraries. If your ticket involves more than one airline operating a single flight number, the explainer on airline alliances and codeshares adds helpful context.
Practical Implications for Your Itinerary
Knowing the definition of a term is step one. Knowing how it plays out at the airport is step two.
Connections and Missed Flights
When you book a single itinerary (one ticket), the airline is generally responsible for rebooking you if a short connection causes a missed flight. When you book separate tickets — say, one for the first leg and a different carrier for the second — you bear that risk yourself. A "minimum connection time" (MCT) is the shortest window an airport officially allows for transferring between flights. Airlines build itineraries around these minimums, but delays can still compress that window to zero.
Stopover Costs and Opportunities
Some international airlines allow or even encourage stopovers on specific routes as a way to draw travelers to a hub city. The cost structure varies: some carriers charge extra, some include it, and some offer free stopovers as a promotional feature on certain markets. Always check the fare rules before assuming a stopover is free. For a fuller look at when a longer layover can actually enhance a trip, see how layovers work and when to embrace them.
Itinerary Flexibility
Whether your connection type affects your ability to change or cancel is buried in the fare rules. Non-refundable tickets with tight connections leave little room for error. Evaluating itinerary flexibility before you book is worth doing whenever a multi-segment trip is involved.
Check Your Visa Requirements for Stopovers
If your stopover involves leaving the international transit zone — or even if it doesn't, in some countries — you may need a transit visa or entry visa for that country. Requirements vary widely by nationality and destination. Always verify entry rules with the official embassy or consulate of your stopover country and your own government's travel advisory service well before your departure date.
Once you're clear on flight structure, pairing the right accommodation type with each leg of the trip becomes easier. The guide to accommodation types walks through lodging options for every budget and trip length.
Author
Articles Haven Editorial Contributor
Articles Haven Editorial Team is the collective byline for our editorial team and contributor network. Articles published under this byline or an editorial pen name are researched, written, and reviewed according to our editorial standards for clarity, consistency, and independence before publication.
View all articles →