Can I check my bags through to my final destination?

Only if your flights are on the same PNR (booking reference) or if the two airlines have an interline agreement. Most of the time, you will have to collect your bags and re-check them.

What happens if my first flight is delayed and I miss the second?

If you booked separate tickets, the second airline is not responsible for your missed flight. You will likely have to pay a change fee or buy a new ticket. This is why the 5-hour buffer is essential.

Are there ferry alternatives?

Yes, for islands in close proximity like St. Kitts and Nevis or the Grenadines, ferries are often more reliable and cheaper than regional flights.

Booking Connecting Flights Between Caribbean Islands

Don't rely on a single global airline alliance; instead, book separate regional tickets on local carriers like LIAT, InterCaribbean, or Silver Airways. Use a search aggregator to identify routes, then book directly through the regional airline's website to avoid third-party booking fees and ensure easier rebooking if a delay occurs.

Map your route with an aggregator. Use Google Flights or Skyscanner to see which regional airlines operate between your two points. Do not rely on these sites to book; many regional Caribbean airlines do not share data with major global booking engines.
Check the carrier's individual website. Once you identify the route, go directly to the airline’s website (e.g., Caribbean Airlines, InterCaribbean, Winair). Check their flight schedule, as many regional routes do not run daily.
Factor in the 'Island Buffer'. If you are booking two separate tickets to connect (e.g., Island A to B, then B to C), leave at least 5 hours between your scheduled arrival and your next departure. Caribbean regional flights are frequently delayed or canceled due to weather or technical issues.
Book separate tickets with caution. Because these are separate tickets, your baggage will usually not be checked through to your final destination. You must factor in the time to clear immigration, collect your bags, and re-check them for your next flight.

Can I check my bags through to my final destination?: Only if your flights are on the same PNR (booking reference) or if the two airlines have an interline agreement. Most of the time, you will have to collect your bags and re-check them.
What happens if my first flight is delayed and I miss the second?: If you booked separate tickets, the second airline is not responsible for your missed flight. You will likely have to pay a change fee or buy a new ticket. This is why the 5-hour buffer is essential.
Are there ferry alternatives?: Yes, for islands in close proximity like St. Kitts and Nevis or the Grenadines, ferries are often more reliable and cheaper than regional flights.