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$102+ 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 3/24. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SJU
feb. 25 — mar. 41
mar. 2/25
mar. 3/4
1 adult, Economy
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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 febrero 20, 2025.

Round-trip from

$154
(Priceline)

One-way from

$102
(United Airlines)

Popular in

December

Cheapest in

September

Average price

$326

Good round-trip deal

$340 or less

Good one-way deal

$154 or less
From Washington, D.C. Dulles Intl to Caribbean
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One-way flight from Washington, D.C. Dulles Intl to Caribbean
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Highest demand for flights based on searches. 10% potential increase in price ($43 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Caribbean.
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Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Caribbean.
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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 febrero 20, 2025.

This Priceline deal was found by Cheapflights users on 2/19. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 4/285:25 pmIAD - SJU
1 stop9h 24mFrontier
vie. 5/29:30 pmSJU - IAD
1 stop14h 12mFrontier
Deal found 2/19$154
This United Airlines deal was found by Cheapflights users on 2/20. 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.
mar. 3/115:35 pmIAD - SJU
Nonstop3h 47mUnited Airlines
mar. 3/183:52 pmSJU - IAD
1 stop8h 07mUnited Airlines
Deal found 2/20$165
This American Airlines deal was found by Cheapflights users on 2/20. 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. 3/15:13 pmIAD - SJU
1 stop10h 56mAmerican Airlines
mié. 3/54:45 pmSJU - IAD
1 stop17h 05mAmerican Airlines
Deal found 2/20$194
This Delta deal was found by Cheapflights users on 2/20. 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.
dom. 3/210:03 amIAD - SJU
1 stop10h 03mDelta
mié. 3/54:15 pmSJU - IAD
1 stop9h 05mDelta
Deal found 2/20$247
This Priceline deal was found by Cheapflights users on 2/19. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/84:37 pmIAD - SJU
1 stop7h 36mMultiple Airlines
sáb. 4/124:05 pmSJU - IAD
1 stop18h 45mMultiple Airlines
Deal found 2/19$319
This Delta deal was found by Cheapflights users on 2/20. 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.
jue. 3/136:00 amIAD - NAS
1 stop5h 55mDelta
mar. 3/181:20 pmNAS - IAD
1 stop6h 23mDelta
Deal found 2/20$331
This American Airlines deal was found by Cheapflights users on 2/19. 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.
jue. 3/209:20 amIAD - NAS
1 stop24h 40mAmerican Airlines
lun. 3/2412:39 pmNAS - IAD
2 stops11h 19mAmerican Airlines
Deal found 2/19$332
This Copa Airlines deal was found by Cheapflights users on 2/20. 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.
jue. 4/34:31 pmIAD - NAS
1 stop19h 06mCopa Airlines
lun. 4/712:32 pmNAS - IAD
1 stop11h 57mCopa Airlines
Deal found 2/20$333
This United Airlines deal was found by Cheapflights users on 2/20. 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.
lun. 2/246:02 amIAD - NAS
1 stop7h 46mUnited Airlines
jue. 2/272:55 pmNAS - IAD
1 stop8h 09mUnited Airlines
Deal found 2/20$341
This Kiwi.com deal was found by Cheapflights users on 2/19. 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.
mié. 2/266:03 pmIAD - PUJ
2 stops20h 40mMultiple Airlines
vie. 2/281:39 pmPUJ - IAD
1 stop28h 34mMultiple Airlines
Deal found 2/19$388
This eDestinos deal was found by Cheapflights users on 2/19. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 4/1910:25 pmIAD - PUJ
2 stops39h 00mFrontier
lun. 4/283:03 pmPUJ - IAD
1 stop23h 19mFrontier
Deal found 2/19$392
This Kiwi.com deal was found by Cheapflights users on 2/20. 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.
jue. 3/272:18 amIAD - NAS
1 stop9h 04mMultiple Airlines
lun. 3/3112:00 pmNAS - IAD
1 stop19h 40mMultiple Airlines
Deal found 2/20$399

Find flights from Dulles Intl to Caribbean within your budget

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 febrero 20, 2025.

Fly from

Dulles Intl

Fly to

Caribbean

Route

Depart

Return

Price

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

lun. 4/28

5:25 pm-2:49 am

1 stop9h 24m

San Juan Luis Munoz Marin Intl

vie. 5/2

9:30 pm-11:42 am

1 stop14h 12m

$154

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

mar. 3/11

5:35 pm-9:22 pm

Nonstop3h 47m

San Juan Luis Munoz Marin Intl

mar. 3/18

3:52 pm-11:59 pm

1 stop8h 07m

$165

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

sáb. 3/1

5:13 pm-5:09 am

1 stop10h 56m

San Juan Luis Munoz Marin Intl

mié. 3/5

4:45 pm-8:50 am

1 stop17h 05m

$194

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

dom. 3/2

10:03 am-9:06 pm

1 stop10h 03m

San Juan Luis Munoz Marin Intl

mar. 3/4

6:17 pm-12:20 am

1 stop7h 03m

$247

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

mar. 4/8

4:37 pm-12:13 am

1 stop7h 36m

San Juan Luis Munoz Marin Intl

sáb. 4/12

4:05 pm-10:50 am

1 stop18h 45m

$319

Washington, D.C.Nassau

IAD - NAS

IADNAS

Washington, D.C. Dulles Intl

jue. 3/13

6:00 am-11:55 am

1 stop5h 55m

Nassau Intl

mar. 3/18

1:20 pm-7:43 pm

1 stop6h 23m

$331

Washington, D.C.Nassau

IAD - NAS

IADNAS

Washington, D.C. Dulles Intl

jue. 3/20

9:20 am-10:00 am

1 stop24h 40m

Nassau Intl

lun. 3/24

12:39 pm-11:58 pm

2 stops11h 19m

$332

Washington, D.C.Nassau

IAD - NAS

IADNAS

Washington, D.C. Dulles Intl

jue. 4/3

4:31 pm-11:37 am

1 stop19h 06m

Nassau Intl

lun. 4/7

12:32 pm-12:29 am

1 stop11h 57m

$333

Washington, D.C.Nassau

IAD - NAS

IADNAS

Washington, D.C. Dulles Intl

vie. 3/21

8:52 am-11:50 am

Nonstop2h 58m

Nassau Intl

lun. 3/24

1:05 pm-3:52 pm

Nonstop2h 47m

$358

Washington, D.C.Punta Cana

IAD - PUJ

IADPUJ

Washington, D.C. Dulles Intl

sáb. 5/3

2:21 am-10:45 am

1 stop8h 24m

Punta Cana

vie. 5/9

3:07 pm-4:34 pm

1 stop25h 27m

$390

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

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.

Travel insights for flights from Dulles Intl to Caribbean

Get recent, data-driven insights about flights from Dulles Intl to Caribbean including ideal travel times, pricing trends, and more.

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 March is currently the most expensive (average of $363). 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 febrero 20, 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 febrero 20, 2025.

The most flights from IAD to 0CB are scheduled on a Monday (5 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (5 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 febrero 20, 2025.
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Comfort

8.1

Overall

8.1

Crew

8.7

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Comfort

8.1

Overall

8.1

Crew

8.7

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Delta
8.0
Very good
8,219 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Comfort

8.1

Overall

8.1

Crew

8.7

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Alaska Airlines
8.0
Very good
9,697 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Comfort

8.1

Overall

8.1

Crew

8.7

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Copa Airlines
7.6
Good
1,510 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Comfort

8.1

Overall

8.1

Crew

8.7

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

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 United Airlines ($102), American Airlines ($107), and Copa Airlines ($116).

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

    The most popular flight routes from Washington, D.C. Dulles Intl Airport to Caribbean are Washington, D.C. Dulles Intl - San Juan Luis Munoz Marin Intl, Washington, D.C. Dulles Intl - Punta Cana and Washington, D.C. Dulles Intl - Montego Bay Sangster Intl.

  • 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 (73%), United Airlines (73%) or Brussels Airlines (67%) 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 $1,062, our data shows the cheapest flight currently is $125. When looking at the most popular route, (Washington, D.C. Dulles Intl - San Juan Luis Munoz Marin Intl), you can expect to pay $160 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 March is currently the most expensive (average of $363). 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.
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Top 8 airlines flying from Dulles Intl to Caribbean

Discover the top 8 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 febrero 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$115Average$230FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$123Average$310FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$203Average$386FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$224Average$673FlexibilityNo cancel feeOn-time71%
DeltaCheapest$242Average$584FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$268Average$609FlexibilityNo cancel feeOn-time69%
Copa AirlinesCheapest$321Average$491FlexibilityNo cancel feeOn-time70%
AviancaCheapest$332Average$489FlexibilityNo cancel feeOn-time71%
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