$117 Cheap Flights to Sister Islands

The cheapest month to fly to Sister Islands is December when demand is low. Off-peak months are often when you'll find cheap fares. To keep costs down, steer clear of flying during public holidays and school breaks.

You can fly to Sister Islands without a stopover from 14 US destinations. To find a nonstop route, check "Direct flights only" when organizing your flights to Sister Islands on Expedia. Then, compare the options and pick the best departure from one of these cities:

• Miami
• Charlotte
• Houston
• Fort Lauderdale
• Atlanta

Book in advance or look for a cheap flight to Sister Islands during the low season, such as May and July. Jetting off on a Thursday could also save you an average of 16% compared to a Sunday departure.* The Expedia app makes it even easier to know when to book. Just activate the toggle for "Watch prices" and get notified as soon as fares change.

*Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.

Staying flexible with your travel plans may help you to secure last-minute offers on cheap flights to Sister Islands. To see all the available options, consider looking at different ticket types, tweaking your Sister Islands vacation dates, leaving from an alternative airport or going with another airline.

Secure your flight to Sister Islands two to four months ahead if you're jetting in from an international destination. For domestic travel, the general guideline is 28 days in advance. Cheaper fares and a greater choice of departure dates, times and seating options are just some of the advantages of booking early.*

*Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.

You can usually find cheap flights to Sister Islands on Sundays. Travelers can save about 8% on average compared to those who book on a Friday, which is typically the most expensive day to purchase tickets.*

*Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.

With a good selection of airlines flying to Sister Islands, you're spoiled for choice:

• American Airlines - 104 flights to Sister Islands each month, including 104 flights to Owen Roberts Intl. Airport (GCM) per month.
• Cayman Airways - 82 flights to Sister Islands each month, including 82 flights to Owen Roberts Intl. Airport (GCM) per month.
• United Airlines - 60 flights to Sister Islands each month, including 60 flights to Owen Roberts Intl. Airport (GCM) per month.

Book a Sister Islands flight and hotel package deal on Expedia, and you could make significant savings. It's a breeze to bundle your accommodations and flights, and you can also add tours and car rentals to create your own customized Sister Islands break. Plus, there's nothing like the convenience of booking everything in one place.

It's often possible to cancel or change your flight to Sister Islands. Many airlines allow you to cancel your ticket for free within 24 hours of booking. However, some flights are non-refundable, and airlines may issue you credit for future travel instead of a direct refund. To secure affordable flights to Sister Islands with flexible change policies, select the "No cancel fee" or "Changes included" filters when you search. Want more details? Go to our Customer Service Portal.