Cheap flights from Washington, D.C. Dulles Intl Airport to Caribbean Islands from $126

The month of September is, on average, the cheapest month to fly to Caribbean Islands from Washington, D.C. Dulles Intl Airport, with most prices found around $153. The month of October is another great option to travel to Caribbean Islands, with average flight prices from Washington, D.C. Dulles Intl Airport averaging around $156.

The cheapest day to depart from Washington, D.C. Dulles Intl Airport to Caribbean Islands is on a Sunday. Travelers who choose to depart for Caribbean Islands on a Sunday will often find tickets for as low as $379. If your travel schedule is flexible, try to avoid departing on a Wednesday because tickets tend to average around $487. These prices are subject to change though, so be sure to set up a Price Alert for flights to Caribbean Islands.

According to our data, the cheapest time of day to fly to Caribbean Islands is in the evening. momondo users have found flights departing from Washington, D.C. Dulles Intl Airport to Caribbean Islands in the evening for as low as $344. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets in the afternoon because they tend to be around $466. Of course, these prices can vary depending on the time of year and what airport you fly to.

Fly from Washington, D.C. Dulles Intl to San Juan Luis Munoz Marin Intl for the best Washington, D.C. Dulles Intl - Caribbean Islands flight prices

You are more likely to see cheaper flights to Caribbean Islands from Washington, D.C. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Caribbean Islands for around $410 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Caribbean Islands from Washington, D.C. Dulles Intl Airport for as low as $330 on momondo.

There are 4 cabin classes available to choose from on Washington, D.C. Dulles Intl Airport to Caribbean Islands flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

American Airlines, Delta, and United Airlines are the most popular carriers operating from Washington, D.C. Dulles Intl to Caribbean Islands

United Airlines, Frontier and American Airlines are the top three most popular airlines that fly to Caribbean Islands from Washington, D.C. Dulles Intl Airport according to our data. United Airlines is the first choice among our users, with 72% of people opting to fly with this airline when traveling to Caribbean Islands. Keep in mind that there are 8 different airlines that fly to Caribbean Islands on a routine basis, so you have a few additional options to choose from.

As of June 2026, there are 11 flights per day flying from Washington, D.C. Dulles Intl Airport to Caribbean Islands. The most common time of day flights depart is 8:00AM, with 50% of flights taking off at noon.

As of June 2026, 80 flights take off from Washington, D.C. Dulles Intl Airport and land in Caribbean Islands each week. The most common flight departure day for this route is Sat, with 18% of weekly flights taking off on this day.