Caribbean Islands

$74+ Cheap flights from Dulles Intl (IAD) to Caribbean Islands

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/27. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SJU
Apr 30 — May 71
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Cheap flight deals from Dulles Intl to Caribbean Islands

Keep the following information in mind while searching for Dulles Intl to Caribbean Islands flight deals. Data was last updated April 25, 2025.

Round-trip from

$148
(Frontier)

One-way from

$74
(Cheapflightsfares)

Popular in

December

Cheapest in

March

Average price

$384
From Washington, D.C. Dulles Intl to Caribbean Islands
One-way flight from Washington, D.C. Dulles Intl to Caribbean Islands
Highest demand for flights based on searches. 11% potential increase in price ($45 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
Average for round-trip flights in April 2025

Find flight deals from Dulles Intl to Caribbean Islands

Cheapest flights from Dulles Intl to Caribbean Islands
Explore the most affordable flight options available from Dulles Intl to Caribbean Islands. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 25, 2025.

This Frontier deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/612:26 pmIAD - SJU
Nonstop3h 57mFrontier
Tue 7/88:00 amSJU - IAD
Nonstop3h 56mFrontier
Deal found 4/25$148
This Delta deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/256:00 amIAD - SJU
1 stop10h 33mDelta
Fri 6/612:50 pmSJU - IAD
1 stop8h 44mDelta
Deal found 4/25$225
This American Airlines deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/278:02 pmIAD - SJU
1 stop15h 08mAmerican Airlines
Wed 6/47:15 amSJU - IAD
1 stop16h 47mAmerican Airlines
Deal found 4/25$231
This Trip.com deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/185:26 pmIAD - SJU
1 stop7h 28mMultiple Airlines
Thu 5/227:20 amSJU - IAD
Nonstop3h 55mMultiple Airlines
Deal found 4/24$249
This United Airlines deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/26:20 amIAD - SJU
1 stop7h 25mUnited Airlines
Wed 9/173:56 pmSJU - IAD
1 stop8h 36mUnited Airlines
Deal found 4/24$275
This American Airlines deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/125:26 pmIAD - NAS
1 stop16h 04mAmerican Airlines
Fri 5/162:45 pmNAS - IAD
1 stop9h 17mAmerican Airlines
Deal found 4/24$330
This Flightnetwork deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/175:34 pmIAD - PUJ
1 stop20h 00mFrontier
Sat 5/244:06 pmPUJ - IAD
1 stop23h 53mFrontier
Deal found 4/25$334
This Copa Airlines deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/212:22 amIAD - NAS
1 stop9h 11mCopa Airlines
Tue 7/2912:34 pmNAS - IAD
1 stop11h 55mCopa Airlines
Deal found 4/25$339
This Kiwi.com deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/195:26 pmIAD - PUJ
1 stop18h 21mMultiple Airlines
Fri 5/2311:21 amPUJ - IAD
1 stop27h 32mMultiple Airlines
Deal found 4/24$343
This United Airlines deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/198:30 amIAD - NAS
1 stop6h 29mUnited Airlines
Sat 7/261:15 pmNAS - IAD
Nonstop2h 52mUnited Airlines
Deal found 4/25$345
This Delta deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/106:00 amIAD - NAS
1 stop9h 53mDelta
Thu 6/125:18 pmNAS - IAD
1 stop7h 15mDelta
Deal found 4/24$355
This United Airlines deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/78:15 amIAD - AUA
Nonstop4h 25mUnited Airlines
Thu 5/154:30 pmAUA - IAD
Nonstop4h 29mUnited Airlines
Deal found 4/24$389

Cheapflights Fare Finder

Customize your flight search to find flights from Dulles Intl to Caribbean Islands that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 25, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Caribbean Islands that are best for you.

Fly from

Dulles Intl

Fly to

Caribbean Islands

Route

Depart

Return

Price

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Sun 7/6

12:26 pm-4:23 pm

Nonstop3h 57m

San Juan Luis Munoz Marin Intl

Tue 7/8

8:00 am-11:56 am

Nonstop3h 56m

$148

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Sun 5/25

6:00 am-4:33 pm

1 stop10h 33m

San Juan Luis Munoz Marin Intl

Fri 6/6

12:50 pm-9:34 pm

1 stop8h 44m

$225

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Tue 5/27

8:02 pm-11:10 am

1 stop15h 08m

San Juan Luis Munoz Marin Intl

Wed 6/4

7:15 am-12:02 am

1 stop16h 47m

$231

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Sun 5/18

5:26 pm-12:54 am

1 stop7h 28m

San Juan Luis Munoz Marin Intl

Thu 5/22

7:20 am-11:15 am

Nonstop3h 55m

$249

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Mon 6/2

8:40 am-12:34 pm

Nonstop3h 54m

San Juan Luis Munoz Marin Intl

Thu 6/5

3:56 pm-12:30 am

1 stop8h 34m

$281

Washington, D.C.Nassau

IAD - NAS

IADNAS

Washington, D.C. Dulles Intl

Mon 5/12

5:26 pm-9:30 am

1 stop16h 04m

Nassau Intl

Fri 5/16

2:45 pm-12:02 am

1 stop9h 17m

$330

Washington, D.C.Punta Cana

IAD - PUJ

IADPUJ

Washington, D.C. Dulles Intl

Sat 5/17

5:34 pm-1:34 pm

1 stop20h 00m

Punta Cana

Sat 5/24

4:06 pm-3:59 pm

1 stop23h 53m

$334

Washington, D.C.Nassau

IAD - NAS

IADNAS

Washington, D.C. Dulles Intl

Mon 7/21

2:22 am-11:33 am

1 stop9h 11m

Nassau Intl

Tue 7/29

12:34 pm-12:29 am

1 stop11h 55m

$339

Washington, D.C.Punta Cana

IAD - PUJ

IADPUJ

Washington, D.C. Dulles Intl

Mon 5/19

5:26 pm-11:47 am

1 stop18h 21m

Punta Cana

Fri 5/23

11:21 am-2:53 pm

1 stop27h 32m

$343

Washington, D.C.Nassau

IAD - NAS

IADNAS

Washington, D.C. Dulles Intl

Sat 7/19

8:30 am-2:59 pm

1 stop6h 29m

Nassau Intl

Sat 7/26

1:15 pm-4:07 pm

Nonstop2h 52m

$345

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/25

Showing 1-10 of 60 results
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Best time to book a flight from Dulles Intl to Caribbean Islands

Have a flexible travel schedule? Discover the best time to fly to Caribbean Islands from Dulles Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Caribbean Islands

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Caribbean Islands?

Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Caribbean Islands (average of $254). Flying from Washington, D.C. Dulles Intl Airport to Caribbean Islands in December is currently the most expensive (average of $336). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IAD to EPX?

Find hourly flight availability from Dulles Intl to Caribbean Islands. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 25, 2025.

When flying from Washington, D.C. Dulles Intl Airport to Caribbean Islands, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Washington, D.C. Dulles Intl Airport to Caribbean Islands

Explore weekly flight availability from Dulles Intl to Caribbean Islands. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated April 25, 2025.

The most flights from IAD to zzEPX are scheduled on a Monday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

Rainfall in Caribbean Islands by month

Plan your trip to Caribbean Islands by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Caribbean Islands ranges from 2.2 - 6.1 inches per month. November is typically the wettest month, when rainfall can reach 6.1 in. February is typically the driest time to visit Caribbean Islands when rainfall is around 2.2 in.

Temperature in Caribbean Islands by month

Plan your trip to Caribbean Islands by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Caribbean Islands, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 77.0 F).

Reviews of airlines servicing Caribbean Islands

Get insights into the airlines that provide service to Caribbean Islands. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Caribbean Islands. Reviews last updated April 25, 2025.
To help decide which airline to fly from Washington, D.C. to Caribbean Islands, see what other customers have to say about Southwest, Delta and Copa Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.6

Overall

8.0

Food

7.1

Entertainment

7.6

Comfort

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!

Crew

8.6

Overall

8.0

Food

7.1

Entertainment

7.6

Comfort

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
8.0
Very good

Crew

8.6

Overall

8.0

Food

7.1

Entertainment

7.6

Comfort

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!

Crew

8.6

Overall

8.0

Food

7.1

Entertainment

7.6

Comfort

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Avelo Airlines
7.5
Good

Crew

8.6

Overall

8.0

Food

7.1

Entertainment

7.6

Comfort

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!

Crew

8.6

Overall

8.0

Food

7.1

Entertainment

7.6

Comfort

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Caribbean Islands. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Caribbean Islands one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $74. Users have also found prices from $113 and $115 on Delta and American Airlines, respectively.

  • What are the most popular routes from Washington, D.C. Dulles Intl Airport to Caribbean Islands?

  • What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to Caribbean Islands?

    Before booking your flight to Caribbean Islands from Washington, D.C. Dulles Intl Airport, check out the most reliable airlines to get you to your destination on time: Air Canada (84%), United Airlines (84%), Brussels Airlines( 82%).

  • What are the cheapest flights from Washington, D.C. Dulles Intl Airport to Caribbean Islands?

    On average you can expect to pay $1,117 for a flight from Washington, D.C. Dulles Intl Airport to Caribbean Islands. The cheapest flight overall is $90 while the most popular route, (Washington, D.C. Dulles Intl - San Juan Luis Munoz Marin Intl) is currently priced at $186.

  • Can I find deals for flights from Dulles Intl to Caribbean Islands that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Caribbean Islands flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Caribbean Islands?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Caribbean Islands.

  • Can I find deals for business class flights from Dulles Intl to Caribbean Islands?

    Yes. Cheapflights offers flight deals from Dulles Intl to Caribbean Islands by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Caribbean Islands?

    Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Caribbean Islands (average of $254). Flying from Washington, D.C. Dulles Intl Airport to Caribbean Islands in December is currently the most expensive (average of $336). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Dulles Intl to Caribbean Islands

See prices for flight routes from nearby airports that may be better suited for you.

Top 9 airlines flying from Dulles Intl to Caribbean Islands

Discover the top 9 airlines that operate flights from Dulles Intl to Caribbean Islands. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$96Average$315FlexibilityNo cancel feeOn-time65%
FrontierCheapest$98Average$267FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$203Average$385FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$224Average$687FlexibilityNo cancel feeOn-time71%
DeltaCheapest$239Average$584FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$274Average$617FlexibilityNo cancel feeOn-time69%
Copa AirlinesCheapest$331Average$472FlexibilityNo cancel feeOn-time70%
AviancaCheapest$332Average$498FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$450Average$508FlexibilityNo cancel feeOn-time67%

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