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 5/27. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SJU
may. 4 — may. 111
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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 abril 29, 2025.

Round-trip from

$153
(Cheapflightsfares)

One-way from

$79
(Cheapflightsfares)

Popular in

December

Cheapest in

March

Average price

$384

Good round-trip deal

$296 or less

Good one-way deal

$178 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. 3% potential price decrease ($12 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 abril 29, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 4/29. 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.
dom. 5/2512:10 pmIAD - SJU
Nonstop3h 52mFrontier
jue. 5/297:20 amSJU - IAD
Nonstop3h 55mFrontier
Deal found 4/29$153
This American Airlines deal was found by Cheapflights users on 4/28. 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.
mié. 5/288:02 pmIAD - SJU
1 stop15h 08mAmerican Airlines
mié. 6/47:15 amSJU - IAD
1 stop16h 47mAmerican Airlines
Deal found 4/28$255
This United Airlines deal was found by Cheapflights users on 4/29. 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.
dom. 6/18:40 amIAD - SJU
Nonstop3h 54mUnited Airlines
mié. 6/41:05 amSJU - IAD
1 stop6h 14mUnited Airlines
Deal found 4/29$281
This Delta deal was found by Cheapflights users on 4/29. 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.
sáb. 5/241:20 pmIAD - SJU
1 stop9h 27mDelta
jue. 5/295:43 pmSJU - IAD
1 stop6h 45mDelta
Deal found 4/29$285
This Mytrip deal was found by Cheapflights users on 4/29. 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.
mar. 7/156:10 amIAD - PUJ
1 stop8h 00mFrontier
mié. 7/303:30 pmPUJ - IAD
1 stop8h 42mFrontier
Deal found 4/29$336
This Copa Airlines deal was found by Cheapflights users on 4/29. 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.
sáb. 5/312:21 amIAD - NAS
1 stop9h 12mCopa Airlines
dom. 6/812:36 pmNAS - IAD
1 stop15h 44mCopa Airlines
Deal found 4/29$339
This Mytrip deal was found by Cheapflights users on 4/29. 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.
dom. 6/111:54 amIAD - SJU
3 stops45h 49mMultiple Airlines
vie. 6/68:12 pmSJU - IAD
2 stops18h 20mMultiple Airlines
Deal found 4/29$342
This Kiwi.com deal was found by Cheapflights users on 4/29. 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.
dom. 6/13:45 pmIAD - PUJ
1 stop18h 25mMultiple Airlines
sáb. 6/712:42 pmPUJ - IAD
1 stop24h 07mMultiple Airlines
Deal found 4/29$346
This United Airlines deal was found by Cheapflights users on 4/29. 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.
sáb. 11/88:52 amIAD - NAS
Nonstop2h 58mUnited Airlines
mar. 11/112:35 pmNAS - IAD
1 stop9h 16mUnited Airlines
Deal found 4/29$350
This American Airlines deal was found by Cheapflights users on 4/29. 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.
sáb. 5/175:02 amIAD - NAS
1 stop4h 28mAmerican Airlines
sáb. 5/242:45 pmNAS - IAD
1 stop9h 17mAmerican Airlines
Deal found 4/29$356
This Delta deal was found by Cheapflights users on 4/29. 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.
mar. 6/106:00 amIAD - NAS
1 stop9h 53mDelta
mar. 6/173:08 pmNAS - IAD
1 stop8h 06mDelta
Deal found 4/29$365
This United Airlines deal was found by Cheapflights users on 4/28. 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.
jue. 5/88:15 amIAD - AUA
Nonstop4h 25mUnited Airlines
lun. 5/124:30 pmAUA - IAD
Nonstop4h 29mUnited Airlines
Deal found 4/28$389

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 abril 29, 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

dom. 5/25

12:10 pm-4:02 pm

Nonstop3h 52m

San Juan Luis Munoz Marin Intl

jue. 5/29

7:20 am-11:15 am

Nonstop3h 55m

$153

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

mié. 5/28

8:02 pm-11:10 am

1 stop15h 08m

San Juan Luis Munoz Marin Intl

mié. 6/4

7:15 am-12:02 am

1 stop16h 47m

$255

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

dom. 6/1

8:40 am-12:34 pm

Nonstop3h 54m

San Juan Luis Munoz Marin Intl

mié. 6/4

1:05 am-7:19 am

1 stop6h 14m

$281

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

sáb. 5/24

1:20 pm-10:47 pm

1 stop9h 27m

San Juan Luis Munoz Marin Intl

jue. 5/29

5:43 pm-12:28 am

1 stop6h 45m

$285

Washington, D.C.Punta Cana

IAD - PUJ

IADPUJ

Washington, D.C. Dulles Intl

mar. 7/15

6:10 am-2:10 pm

1 stop8h 00m

Punta Cana

mié. 7/30

3:30 pm-12:12 am

1 stop8h 42m

$336

Washington, D.C.Nassau

IAD - NAS

IADNAS

Washington, D.C. Dulles Intl

sáb. 5/31

2:21 am-11:33 am

1 stop9h 12m

Nassau Intl

lun. 6/30

12:36 pm-4:20 am

1 stop15h 44m

$339

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

dom. 6/1

11:54 am-9:43 am

3 stops45h 49m

San Juan Luis Munoz Marin Intl

vie. 6/6

8:12 pm-2:32 pm

2 stops18h 20m

$342

Washington, D.C.Punta Cana

IAD - PUJ

IADPUJ

Washington, D.C. Dulles Intl

dom. 6/1

3:45 pm-10:10 am

1 stop18h 25m

Punta Cana

sáb. 6/7

12:42 pm-12:49 pm

1 stop24h 07m

$346

Washington, D.C.Nassau

IAD - NAS

IADNAS

Washington, D.C. Dulles Intl

sáb. 7/5

8:37 am-11:38 am

Nonstop3h 01m

Nassau Intl

mié. 7/9

2:53 pm-10:18 pm

1 stop7h 25m

$350

Washington, D.C.Nassau

IAD - NAS

IADNAS

Washington, D.C. Dulles Intl

sáb. 5/17

5:02 am-9:30 am

1 stop4h 28m

Nassau Intl

sáb. 5/24

2:45 pm-12:02 am

1 stop9h 17m

$356

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

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 abril 29, 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 abril 29, 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 abril 29, 2025.

Crew

8.6

Boarding

8.2

Comfort

8.0

Entertainment

7.6

Food

7.1

Overall

8.0

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

Boarding

8.2

Comfort

8.0

Entertainment

7.6

Food

7.1

Overall

8.0

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

Boarding

8.2

Comfort

8.0

Entertainment

7.6

Food

7.1

Overall

8.0

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

Boarding

8.2

Comfort

8.0

Entertainment

7.6

Food

7.1

Overall

8.0

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

Boarding

8.2

Comfort

8.0

Entertainment

7.6

Food

7.1

Overall

8.0

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

Boarding

8.2

Comfort

8.0

Entertainment

7.6

Food

7.1

Overall

8.0

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. 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 ($113), and Copa Airlines ($119).

  • 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 (84%), United Airlines (84%) or Brussels Airlines (82%) 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 $829, our data shows the cheapest flight currently is $89. When looking at the most popular route, (Washington, D.C. Dulles Intl - San Juan Luis Munoz Marin Intl), you can expect to pay $166 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 abril 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$96Average$323FlexibilityNo cancel feeOn-time65%
FrontierCheapest$101Average$290FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$203Average$385FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$224Average$681FlexibilityNo cancel feeOn-time71%
DeltaCheapest$238Average$590FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$290Average$618FlexibilityNo cancel feeOn-time69%
Copa AirlinesCheapest$331Average$469FlexibilityNo cancel feeOn-time70%
AviancaCheapest$332Average$498FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$450Average$508FlexibilityNo cancel feeOn-time67%

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