Caribbean

$79+ Cheap flights from Dulles Intl (IAD) to Caribbean

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 5/25. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SJU
Apr 20 — Apr 271
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Cheap flight deals from Dulles Intl to Caribbean

Keep the following information in mind while searching for Dulles Intl to Caribbean flight deals. Data was last updated April 15, 2025.

Round-trip from

$166
(Cheapflightsfares)

One-way from

$79
(Cheapflightsfares)

Popular in

December

Cheapest in

March

Average price

$385

Good round-trip deal

$308 or less

Good one-way deal

$168 or less
From Washington, D.C. Dulles Intl to Caribbean
One-way flight from Washington, D.C. Dulles Intl to Caribbean
Highest demand for flights based on searches. 11% potential increase in price ($45 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
Average for round-trip flights in April 2025
Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Caribbean.
Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Caribbean.

Find flight deals from Dulles Intl to Caribbean

Cheapest flights from Dulles Intl to Caribbean
Explore the most affordable flight options available from Dulles Intl to Caribbean. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 15, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 4/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/112:28 pmIAD - SJU
Nonstop3h 50mFrontier
Thu 6/57:40 amSJU - IAD
Nonstop3h 53mFrontier
Deal found 4/14$166
This American Airlines deal was found by Cheapflights users on 4/14. 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 5/55:07 pmIAD - SJU
1 stop12h 05mAmerican Airlines
Fri 5/97:15 amSJU - IAD
1 stop16h 47mAmerican Airlines
Deal found 4/14$255
This United Airlines deal was found by Cheapflights users on 4/15. 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.
Mon 6/98:40 amIAD - SJU
Nonstop3h 54mUnited Airlines
Wed 6/111:05 amSJU - IAD
1 stop6h 14mUnited Airlines
Deal found 4/15$281
This Delta deal was found by Cheapflights users on 4/13. 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 7/1512:30 pmIAD - SJU
1 stop11h 16mDelta
Tue 7/222:15 pmSJU - IAD
1 stop8h 44mDelta
Deal found 4/13$285
This American Airlines deal was found by Cheapflights users on 4/15. 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.
Sat 5/38:14 pmIAD - NAS
2 stops15h 18mAmerican Airlines
Wed 5/712:05 pmNAS - IAD
2 stops11h 57mAmerican Airlines
Deal found 4/15$334
This Frontier deal was found by Cheapflights users on 4/15. 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.
Tue 5/275:15 amIAD - PUJ
1 stop9h 11mFrontier
Sat 5/313:40 pmPUJ - IAD
1 stop7h 58mFrontier
Deal found 4/15$339
This United Airlines deal was found by Cheapflights users on 4/15. 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 11/88:52 amIAD - NAS
Nonstop2h 58mUnited Airlines
Sat 11/151:05 pmNAS - IAD
Nonstop2h 47mUnited Airlines
Deal found 4/15$340
This Delta deal was found by Cheapflights users on 4/14. 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.
Sat 9/137:00 amIAD - NAS
1 stop6h 11mDelta
Tue 9/161:19 pmNAS - IAD
1 stop7h 54mDelta
Deal found 4/14$346
This Copa Airlines deal was found by Cheapflights users on 4/14. 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.
Thu 5/154:34 pmIAD - NAS
1 stop18h 59mCopa Airlines
Mon 5/1912:36 pmNAS - IAD
1 stop15h 44mCopa Airlines
Deal found 4/14$358
This Mytrip deal was found by Cheapflights users on 4/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/111:54 amIAD - SJU
2 stops31h 13mMultiple Airlines
Wed 6/41:59 amSJU - IAD
3 stops36h 24mMultiple Airlines
Deal found 4/14$372
This Copa Airlines deal was found by Cheapflights users on 4/15. 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.
Sun 8/244:34 pmIAD - PUJ
1 stop19h 05mCopa Airlines
Sun 8/3111:53 amPUJ - IAD
1 stop16h 29mCopa Airlines
Deal found 4/15$373
This Delta deal was found by Cheapflights users on 4/15. 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 9/286:00 amIAD - PUJ
1 stop8h 37mDelta
Fri 10/32:42 pmPUJ - IAD
1 stop9h 25mDelta
Deal found 4/15$385

Cheapflights Fare Finder

Customize your flight search to find flights from Dulles Intl to Caribbean 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 15, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Caribbean that are best for you.

Fly from

Dulles Intl

Fly to

Caribbean

Route

Depart

Return

Price

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Sun 6/1

12:28 pm-4:18 pm

Nonstop3h 50m

San Juan Luis Munoz Marin Intl

Thu 6/5

7:40 am-11:33 am

Nonstop3h 53m

$166

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Mon 5/5

5:07 pm-5:12 am

1 stop12h 05m

San Juan Luis Munoz Marin Intl

Fri 5/9

7:15 am-12:02 am

1 stop16h 47m

$255

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Mon 6/9

8:40 am-12:34 pm

Nonstop3h 54m

San Juan Luis Munoz Marin Intl

Wed 6/11

1:05 am-7:19 am

1 stop6h 14m

$281

Washington, D.C.Nassau

IAD - NAS

IADNAS

Washington, D.C. Dulles Intl

Sat 5/3

8:14 pm-9:28 am

1 stop13h 14m

Nassau Intl

Wed 5/7

10:20 am-12:02 am

2 stops13h 42m

$334

Washington, D.C.Punta Cana

IAD - PUJ

IADPUJ

Washington, D.C. Dulles Intl

Tue 5/27

5:15 am-2:26 pm

1 stop9h 11m

Punta Cana

Sat 5/31

3:40 pm-11:38 pm

1 stop7h 58m

$339

Washington, D.C.Nassau

IAD - NAS

IADNAS

Washington, D.C. Dulles Intl

Mon 5/12

10:20 pm-3:58 pm

1 stop17h 38m

Nassau Intl

Sat 5/17

1:15 pm-4:07 pm

Nonstop2h 52m

$344

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Sun 5/25

6:00 am-12:45 pm

1 stop6h 45m

San Juan Luis Munoz Marin Intl

Thu 5/29

12:50 pm-12:28 am

1 stop11h 38m

$345

Washington, D.C.Nassau

IAD - NAS

IADNAS

Washington, D.C. Dulles Intl

Wed 6/11

6:00 am-3:53 pm

1 stop9h 53m

Nassau Intl

Mon 6/16

12:58 pm-7:50 pm

1 stop6h 52m

$355

Washington, D.C.Nassau

IAD - NAS

IADNAS

Washington, D.C. Dulles Intl

Thu 5/15

4:34 pm-11:33 am

1 stop18h 59m

Nassau Intl

Mon 5/19

12:36 pm-4:20 am

1 stop15h 44m

$358

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Sun 6/1

11:54 am-7:07 pm

2 stops31h 13m

San Juan Luis Munoz Marin Intl

Wed 6/4

1:59 am-2:23 pm

3 stops36h 24m

$372

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/15

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

Have a flexible travel schedule? Discover the best time to fly to Caribbean 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

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

Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Caribbean (average of $254). Flying from Washington, D.C. Dulles Intl Airport to Caribbean 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 CB?

Find hourly flight availability from Dulles Intl to Caribbean. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 15, 2025.

When flying from Washington, D.C. Dulles Intl Airport to Caribbean, 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

Explore weekly flight availability from Dulles Intl to Caribbean. 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 15, 2025.

The most flights from IAD to 0CB 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 by month

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

In terms of precipitation, rainfall in Caribbean 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 when rainfall is around 2.2 in.

Temperature in Caribbean by month

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

If weather is an important factor for your trip to Caribbean, 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

Get insights into the airlines that provide service to Caribbean. 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. Reviews last updated April 15, 2025.
8.0
Very good

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good
8.0
Very good

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Caribbean. 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 one-way?

    The cheapest airlines for a one-way flight from Washington, D.C. Dulles Intl Airport to Caribbean are Frontier ($79), Delta ($99), and American Airlines ($105).

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

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

    No one likes to see their flight delayed. When booking a flight from Washington, D.C. Dulles Intl Airport to Caribbean consider choosing Air Canada (83%), United Airlines (83%) or Brussels Airlines (80%) as they are the most reliable in getting you off to your destination on time.

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

    While on average a flight from Washington, D.C. Dulles Intl Airport to Caribbean is generally $939, our data shows the cheapest flight currently is $90. When looking at the most popular route, (Washington, D.C. Dulles Intl - San Juan Luis Munoz Marin Intl), you can expect to pay $210 for that flight.

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

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

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

    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.

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

    Yes. Cheapflights offers flight deals from Dulles Intl to Caribbean 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?

    Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Caribbean (average of $254). Flying from Washington, D.C. Dulles Intl Airport to Caribbean 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

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

Top 9 airlines flying from Dulles Intl to Caribbean

Discover the top 9 airlines that operate flights from Dulles Intl to Caribbean. 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 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$96Average$315FlexibilityNo cancel feeOn-time65%
FrontierCheapest$115Average$267FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$203Average$385FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$224Average$687FlexibilityNo cancel feeOn-time71%
DeltaCheapest$239Average$577FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$273Average$615FlexibilityNo cancel feeOn-time69%
Copa AirlinesCheapest$321Average$473FlexibilityNo cancel feeOn-time70%
AviancaCheapest$332Average$498FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$450Average$508FlexibilityNo cancel feeOn-time67%

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