For island markets, connectivity is often measured by the number of destinations served or the frequency of available flights. But another factor matters just as much: whether those flights can connect efficiently.
At many small and mid-sized airports, an international passenger changing flights may need to clear immigration, collect baggage, pass through customs, check in again and undergo another security screening. This is not necessarily a management issue. It can reflect terminals originally designed around origin-and-destination traffic, different national security regimes, border requirements or baggage systems that were never intended to handle international transfers.
For airports looking to strengthen regional connectivity, the question is therefore not only how to attract another route. It is also how to make existing routes work together.
The transfer challenge goes beyond terminal design
International transfers sit at the intersection of several systems: aviation security, immigration, customs, baggage handling and airline operations.
That means solutions can vary considerably.
Some are primarily regulatory. Under One-Stop Security arrangements, for example, one State can recognise security controls performed in another jurisdiction when equivalent standards are demonstrated, avoiding unnecessary re-screening of eligible passengers and baggage.
Others require targeted terminal adaptations: sterile corridors, dedicated transfer checkpoints, better separation of passenger flows or transfer desks.
At the higher end are integrated baggage systems, automated screening and major terminal redevelopment.
For smaller island airports, this distinction matters. Improving connectivity does not automatically require building a larger terminal.
Curaçao shows that transfer traffic can become part of the business
Curaçao International Airport provides a useful Caribbean example.
The airport recorded 2.46 million passenger movements in 2025, up 17% from the previous year. Transfer passengers accounted for 7% of traffic and transit passengers another 7%, demonstrating that connecting flows can already represent a meaningful component of activity at an island airport.
Curaçao is now investing further in that capability.
An outbound terminal expansion launched in May 2026 includes additional immigration and security capacity, another screening line and a more efficient transit route for connecting passengers.
This is an important distinction. The objective is not necessarily to transform an island airport into a large global hub. It is to ensure that, when connecting traffic exists, the terminal can process it efficiently enough to support the network.
The economics can be particularly relevant in island markets, where individual origin-and-destination flows may be relatively small. Connecting different traffic pools can help airlines aggregate demand that might otherwise be insufficient to support additional frequencies or routes.
Regulation can be as important as concrete
ICAO’s One-Stop Security work in the Americas illustrates the regulatory side of the equation.
Pilot processes involving Bogotá and Lima have explored how passengers and baggage already screened under recognised security standards can continue their journeys without unnecessary duplicate controls.
The operational benefits extend beyond passenger convenience.
Repeated screening consumes terminal space, personnel, equipment and baggage-processing capacity. Removing duplication where security equivalence can be demonstrated can therefore shorten transfer times while freeing airport resources.
For airlines, shorter and more predictable connections can also expand the number of realistic itinerary combinations.
Two flights may already operate through the same airport, but if the required transfer process is too long or uncertain, they may not function as a commercially attractive connection. Streamlining that process can effectively create new network possibilities without adding a new runway, terminal or route.
The cost depends on how deep the intervention goes
There is no meaningful standard price for creating seamless international transfers.
A regulatory agreement based on mutual recognition can require substantial institutional work, audits and coordination but relatively little physical infrastructure.
Creating dedicated transfer corridors or checkpoints requires more capital.
Integrating baggage flows can be significantly more expensive.
Aruba illustrates the upper end of that spectrum. Its modernised baggage transportation and sortation system was awarded under a contract worth approximately US$33 million and can process up to 2,000 bags per hour.
That figure is not the cost of creating a transfer facility. The system formed part of a much broader baggage and passenger-processing transformation. But it demonstrates how rapidly investment requirements can rise when transfer facilitation is combined with major terminal and baggage modernisation.
Aruba’s wider Gateway 2030 programme also shows that infrastructure is only one layer. In May 2026, Aruba Airport Authority, the Government of Aruba, Royal Schiphol Group and KLM signed a memorandum of understanding covering connectivity, digital infrastructure and potential future border-facilitation initiatives between Aruba and Europe.
The lesson is that seamless transfers rarely depend on a single project. They emerge from the interaction of terminal design, technology, airline processes and government-to-government cooperation.
Island networks offer useful comparisons
Outside the Caribbean, Nadi International Airport in Fiji provides another relevant reference point.
Nadi handles more than 2.1 million international passengers annually and serves as a connecting point for Fiji Airways across the South Pacific, supported by dedicated procedures for international transit passengers.
The comparison is useful because the network challenge is similar: geographically dispersed island markets, relatively small individual traffic flows and the need to combine them into commercially viable connections.
Again, the lesson is not that every island airport should become a hub. The question is whether selected airports can function more effectively as connecting points for specific markets and routes.
The Caribbean already has some of the building blocks
Regional initiatives suggest that the conditions for further progress are emerging.
In June 2026, CARICOM stakeholders were preparing the use of national electronic identification cards for travel between Barbados and Guyana. Discussions covered check-in, boarding, passenger verification and the handling of travellers in transit.
Digital identity will not solve baggage, customs or security constraints on its own, but it can remove one layer of friction.
Institutional cooperation is also moving forward. In February 2026, the Caribbean Tourism Organization and Airports Council International – Latin America and Caribbean formalised a three-year partnership covering air connectivity, policy dialogue, research, training and potential pilot initiatives.
Discussions at the 2026 CTO Air Connectivity Summit also highlighted a principle particularly relevant to island markets: optimise existing infrastructure before automatically expanding it, while strengthening interline cooperation and coordination between aviation, tourism and border authorities.
For Caribbean aviation, the objective should not be to turn every airport into a hub.
It should be to ensure that, where connecting traffic makes economic and operational sense, regulation and infrastructure do not unnecessarily stand in its way.
Sometimes better connectivity comes from opening another route. In other cases, it may come from something less visible: making two routes that already exist work together.
