Cape Air (IATA: 9K) is a US regional airline that operates small 9-seat Cessna 402 piston aircraft, primarily connecting the Northeast United States — including Cape Cod, Nantucket, and Martha's Vineyard — with the Caribbean, including the US Virgin Islands and Puerto Rico, plus routes in Montana. Its small-aircraft model lets it serve island and coastal communities that larger jet aircraft cannot economically reach.
Cape Air operates without a single dominant hub, running from bases including Boston Logan International (BOS) in the Northeast and Luis Muñoz Marín International (SJU) in San Juan for its Caribbean network. The airline maintains codeshare and interline agreements with several major US carriers, allowing connecting itineraries onto its network. FareOptic compares Cape Air fares to help you find the best price for your short-hop or island getaway.
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Most searched Cape Air flights to New England islands and the Caribbean
*All above fares are one way/round trip. Fares incl. all fuel surcharges, taxes & fees and our service fees. Displayed fares are subject to change and cannot be guaranteed at the time of booking. See all booking terms and conditions.
Cape Air operates from regional bases in the Northeast and Caribbean rather than a single dominant hub.
Cape Air flies a single-class, 9-seat aircraft on every route in its network.
Cape Air does not operate its own frequent flyer program. Instead, it relies on codeshare and interline agreements with several major US carriers, which can offer mileage-earning opportunities or single-ticket connections for travelers flying onward to Cape Air destinations.
Cape Air maintains codeshare agreements with several major US airlines, allowing connecting itineraries booked on a single ticket in many markets.
Cape Air's 9-seat aircraft open up destinations that larger carriers cannot economically serve, including small New England islands and Caribbean communities.
On many routes, Cape Air offers multiple daily departures thanks to its small-aircraft model, giving travelers scheduling flexibility.
Where interline agreements exist with partner carriers, checked baggage can often be through-checked to your final Cape Air destination.
Cape Air's small aircraft mean baggage rules differ from mainline jet carriers. Always verify at time of booking.
| Bag / Policy | Economy |
|---|---|
| Checked/carry-on allowance | Due to the small size of Cape Air's 9-seat aircraft, combined carry-on and checked baggage is limited to roughly 25–35 lbs per passenger depending on route and aircraft weight and balance requirements. |
Because Cape Air's Cessna 402 aircraft carry only 9 passengers, weight and balance requirements limit baggage more than on jet aircraft. Confirm exact limits for your route at capeair.com.
Available at capeair.com or through partner airline check-in for codeshare itineraries, typically opening 24 hours before departure.
Given the small size of Cape Air's aircraft and terminals, arrive at least 45–60 minutes before departure. Some small airports have limited staffed hours.
Because Cape Air aircraft carry only 9 passengers, gate agents may adjust seating for weight and balance — arrive early and follow boarding instructions closely.
Cape Air tickets can typically be cancelled within 24 hours of purchase for a full refund, provided the flight departs at least 7 days away.
Standard Cape Air fares may carry a change fee plus fare difference. Codeshare tickets booked through a partner airline follow that carrier's change policy.
Small piston aircraft are more sensitive to weather than jets. Cape Air will rebook passengers on the next available flight at no charge when flights are weather-cancelled.
If you booked through a partner airline as part of a connecting itinerary, cancellations and changes are typically handled through that airline.
Given the short flight times and small aircraft size, Cape Air does not offer meal, beverage, or in-flight entertainment service.
On many Cape Air Cessna 402 flights, one passenger sits in the co-pilot seat, offering unique views and a close-up flying experience.
Routes to Nantucket, Martha's Vineyard, and Caribbean islands offer low-altitude, scenic approaches that larger jets don't provide.
Most Cape Air routes are under an hour, making it a quick way to reach island and coastal destinations without a ferry or long drive.
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Everything you need to know about booking Cape Air flights on FareOptic
Cape Air operates small 9-seat Cessna 402 piston aircraft. This allows the airline to serve short regional routes to small island and coastal communities that larger jets cannot economically or physically access, including Nantucket, Martha's Vineyard, and islands in the Caribbean.
Cape Air primarily serves the Northeast United States — including Cape Cod, Nantucket, and Martha's Vineyard — along with the Caribbean, including the US Virgin Islands and Puerto Rico, and points in Montana. Route availability can vary seasonally, especially for New England island destinations.
Cape Air does not operate a major frequent flyer program of its own. However, it maintains codeshare and interline agreements with several major US carriers, which can allow mileage earning or through-ticketing on connecting itineraries in some cases — check with the partner airline for details.
No. Given the small size of Cape Air's 9-seat aircraft and its short flight times, there is no meal, beverage, or entertainment service on board. Flights are typically well under an hour.
Because Cape Air's Cessna 402 aircraft are small and subject to strict weight and balance limits, baggage allowances are more restrictive than on mainline jets. Passengers should check exact weight limits for their specific route at capeair.com before packing, as limits can vary by aircraft load and route.
Yes. Cape Air has long-standing codeshare and interline agreements with several major US carriers, allowing travelers to book connecting itineraries from major hub airports onward to smaller Cape Air destinations on a single ticket in many cases.