How long is the flight from Washington, D.C. Dulles Intl Airport to Caribbean?

For as low as $266, United Airlines can have you in Caribbean from Washington, D.C. Dulles Intl Airport in 3h 50m. The distance between Washington, D.C. Dulles Intl Airport and Caribbean is about 1573 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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 ($118), Delta ($123), and Air Canada ($124).

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.

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).

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 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 $625, our data shows the cheapest flight currently is $77. When looking at the most popular route, (Washington, D.C. Dulles Intl - San Juan Luis Munoz Marin Intl), you can expect to pay $148 for that flight.

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 (75%), United Airlines (75%) or Brussels Airlines (70%) as they are the most reliable in getting you off to your destination on time.

What are the most popular airlines that fly from Washington, D.C. Dulles Intl Airport to Caribbean?

American Airlines, JetBlue and Delta are the most popular airlines when flying from Washington, D.C. Dulles Intl Airport to Caribbean.

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.

$117+ Cheap Flights from Washington, D.C. Dulles Intl Airport to Caribbean

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Cheap flight deals from Dulles Intl to Caribbean

Round-trip from	$168
One-way from	$117 (Frontier)
Popular in	December
Cheapest in	July
Average price	$355
Good round-trip deal	$297 or less
Good one-way deal	$173 or less

From Washington, D.C. Dulles Intl to Caribbean

Search Deals

One-way flight from Washington, D.C. Dulles Intl to Caribbean

Search Deals

Highest demand for flights based on searches. 11% potential increase in price ($44 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($11 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Caribbean.

Search Deals

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 September 17, 2025.

Sun 11/167:26 pmIAD - SJU

Nonstop3h 52mFrontier

Fri 11/214:08 pmSJU - IAD

Nonstop4h 03mFrontier

Deal found 9/15

$168

Thu 10/239:07 pmIAD - SJU

Nonstop3h 52mFrontier

Thu 10/307:30 amSJU - IAD

1 stop13h 27mFrontier

Deal found 9/17

$176

Sun 11/27:26 pmIAD - SJU

Nonstop3h 52mFrontier

Sun 11/93:45 pmSJU - IAD

Nonstop3h 56mFrontier

Deal found 9/15

$181

Sun 10/199:07 pmIAD - SJU

Nonstop3h 52mFrontier

Sun 11/23:45 pmSJU - IAD

Nonstop3h 56mFrontier

Deal found 9/15

$183

Thu 10/308:26 pmIAD - SJU

Nonstop3h 52mFrontier

Thu 11/63:45 pmSJU - IAD

Nonstop3h 56mFrontier

Deal found 9/15

$184

Sun 10/269:07 pmIAD - SJU

Nonstop3h 52mFrontier

Sun 11/23:45 pmSJU - IAD

Nonstop3h 56mFrontier

Deal found 9/16

$187

Thu 10/239:07 pmIAD - SJU

Nonstop3h 52mFrontier

Sun 10/264:26 pmSJU - IAD

Nonstop3h 56mFrontier

Deal found 9/15

$189

Thu 10/169:07 pmIAD - SJU

Nonstop3h 52mFrontier

Sun 10/194:26 pmSJU - IAD

Nonstop3h 56mFrontier

Deal found 9/16

$191

Thu 12/1110:08 amIAD - SJU

Nonstop3h 54mFrontier

Wed 12/173:59 pmSJU - IAD

1 stop7h 20mFrontier

Deal found 9/16

$192

Sun 10/56:10 amIAD - SJU

1 stop8h 01mFrontier

Thu 10/94:26 pmSJU - IAD

Nonstop3h 56mFrontier

Deal found 9/15

$197

Sun 10/269:07 pmIAD - SJU

Nonstop3h 52mFrontier

Wed 10/295:51 pmSJU - IAD

2 stops22h 43mFrontier

Deal found 9/16

$201

Thu 10/309:45 amIAD - CUR

1 stop28h 25mAir Canada

Thu 11/65:20 pmCUR - IAD

1 stop23h 31mAir Canada

Deal found 9/15

$291

Best flights from Dulles Intl to Caribbean
Discover carefully curated flight deals from Dulles Intl to Caribbean that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 17, 2025.

Mon 11/105:32 pmIAD - SJU

Nonstop3h 50mUnited Airlines

Thu 11/135:50 pmSJU - IAD

Nonstop4h 05mUnited Airlines

Deal found 9/15

$266

Tue 10/142:25 amIAD - SDQ

1 stop13h 50mCopa Airlines

Sun 10/1911:57 amSDQ - IAD

1 stop16h 23mCopa Airlines

Deal found 9/16

$387

Wed 10/295:15 pmIAD - CUR

2 stops23h 45mAvianca

Sun 11/26:15 pmCUR - IAD

2 stops21h 40mAvianca

Deal found 9/16

$403

Sun 1/257:50 pmIAD - CUR

1 stop17h 55mDelta

Thu 1/294:10 pmCUR - IAD

1 stop8h 57mDelta

Deal found 9/14

$415

Fri 12/51:20 pmIAD - PLS

2 stops22h 55mAir Canada

Fri 12/121:15 pmPLS - IAD

1 stop7h 11mAir Canada

Deal found 9/15

$421

Wed 10/295:32 pmIAD - SJU

Nonstop3h 50mUnited Airlines

Fri 10/314:50 pmSJU - IAD

Nonstop4h 05mUnited Airlines

Deal found 9/16

$296

Fri 10/35:40 pmIAD - SXM

3 stops20h 20mMultiple Airlines

Fri 10/103:05 pmSXM - IAD

3 stops20h 16mMultiple Airlines

Deal found 9/16

$593

Sat 12/138:05 pmIAD - SXM

1 stop16h 53mAmerican Airlines

Sun 12/212:59 pmSXM - IAD

1 stop10h 05mAmerican Airlines

Deal found 9/17

$597

Sat 11/15:32 pmIAD - SJU

Nonstop3h 50mUnited Airlines

Fri 11/78:10 amSJU - IAD

1 stop10h 20mUnited Airlines

Deal found 9/16

$301

Mon 12/85:32 pmIAD - SJU

Nonstop3h 50mUnited Airlines

Mon 12/155:50 pmSJU - IAD

Nonstop4h 05mUnited Airlines

Deal found 9/17

$302

Tue 1/133:25 pmIAD - SDQ

1 stop19h 07mCopa Airlines

Mon 1/196:39 pmSDQ - IAD

1 stop9h 34mCopa Airlines

Deal found 9/15

$389

Fri 10/173:20 pmIAD - CUR

1 stop18h 35mAvianca

Tue 10/2111:05 amCUR - IAD

1 stop18h 30mAvianca

Deal found 9/16

$414

Sun 1/257:50 pmIAD - CUR

1 stop17h 55mDelta

Mon 2/24:10 pmCUR - IAD

1 stop18h 01mDelta

Deal found 9/14

$415

Wed 10/110:45 amIAD - SJU

1 stop9h 53mUnited Airlines

Tue 10/73:56 pmSJU - IAD

1 stop8h 25mUnited Airlines

Deal found 9/14

$312

Sat 1/173:25 pmIAD - SDQ

1 stop9h 52mCopa Airlines

Thu 1/296:39 pmSDQ - IAD

1 stop9h 34mCopa Airlines

Deal found 9/15

$389

Mon 1/267:00 amIAD - CUR

1 stop6h 45mDelta

Mon 2/24:10 pmCUR - IAD

1 stop18h 01mDelta

Deal found 9/14

$415

Sat 2/283:34 pmIAD - SDQ

1 stop9h 43mCopa Airlines

Wed 3/48:48 amSDQ - IAD

1 stop19h 27mCopa Airlines

Deal found 9/16

$389

Mon 12/155:32 pmIAD - SJU

Nonstop3h 50mUnited Airlines

Mon 12/222:15 pmSJU - IAD

1 stop8h 00mUnited Airlines

Deal found 9/17

$337

Mon 1/267:00 amIAD - CUR

1 stop6h 45mDelta

Thu 1/294:10 pmCUR - IAD

1 stop8h 57mDelta

Deal found 9/14

$415

Sat 1/313:25 pmIAD - SDQ

1 stop9h 52mCopa Airlines

Sat 2/286:39 pmSDQ - IAD

1 stop9h 36mCopa Airlines

Deal found 9/17

$389

Sat 12/135:32 pmIAD - SJU

Nonstop3h 50mUnited Airlines

Sat 12/208:30 amSJU - IAD

Nonstop4h 05mUnited Airlines

Deal found 9/14

$339

Sun 10/197:05 amIAD - NAS

1 stop6h 44mDelta

Wed 10/221:03 pmNAS - IAD

1 stop6h 15mDelta

Deal found 9/17

$415

Sat 2/213:34 pmIAD - SDQ

1 stop9h 43mCopa Airlines

Sat 2/286:39 pmSDQ - IAD

1 stop9h 36mCopa Airlines

Deal found 9/15

$389

Wed 12/106:00 amIAD - SJU

1 stop7h 40mUnited Airlines

Tue 12/168:10 amSJU - IAD

1 stop10h 20mUnited Airlines

Deal found 9/16

$341

Sun 1/257:50 pmIAD - CUR

1 stop17h 55mDelta

Wed 2/44:10 pmCUR - IAD

1 stop18h 01mDelta

Deal found 9/14

$422

Wed 2/253:34 pmIAD - SDQ

1 stop9h 43mCopa Airlines

Sat 2/286:39 pmSDQ - IAD

1 stop9h 36mCopa Airlines

Deal found 9/15

$389

Sat 10/256:01 amIAD - SJU

1 stop9h 41mUnited Airlines

Tue 10/287:10 amSJU - IAD

1 stop10h 20mUnited Airlines

Deal found 9/15

$341

Wed 2/41:18 amIAD - SDQ

1 stop13h 54mCopa Airlines

Tue 2/1011:57 amSDQ - IAD

1 stop16h 18mCopa Airlines

Deal found 9/15

$389

Sun 11/96:00 amIAD - NAS

1 stop9h 26mDelta

Mon 11/174:51 pmNAS - IAD

1 stop7h 27mDelta

Deal found 9/15

$429

Sat 10/45:12 pmIAD - SJU

1 stop6h 45mUnited Airlines

Sat 10/114:55 pmSJU - IAD

Nonstop3h 57mUnited Airlines

Deal found 9/16

$344

Last-minute flights from Dulles Intl to Caribbean
Discover last-minute flight deals from Dulles Intl to Caribbean. Data last updated September 17, 2025 and is based on user searches.

Sun 10/56:10 amIAD - SJU

1 stop8h 01mFrontier

Thu 10/94:26 pmSJU - IAD

Nonstop3h 56mFrontier

Deal found 9/15

$197

Sun 10/129:07 pmIAD - SJU

Nonstop3h 52mFrontier

Sun 10/194:26 pmSJU - IAD

Nonstop3h 56mFrontier

Deal found 9/15

$205

Thu 10/169:07 pmIAD - SJU

Nonstop3h 52mFrontier

Sun 10/194:26 pmSJU - IAD

Nonstop3h 56mFrontier

Deal found 9/16

$191

Sun 10/199:07 pmIAD - SJU

Nonstop3h 52mFrontier

Sun 11/23:45 pmSJU - IAD

Nonstop3h 56mFrontier

Deal found 9/15

$183

Thu 10/239:07 pmIAD - SJU

Nonstop3h 52mFrontier

Thu 10/307:30 amSJU - IAD

1 stop13h 27mFrontier

Deal found 9/17

$176

Thu 10/239:07 pmIAD - SJU

Nonstop3h 52mFrontier

Sun 10/264:26 pmSJU - IAD

Nonstop3h 56mFrontier

Deal found 9/15

$189

Sun 10/269:07 pmIAD - SJU

Nonstop3h 52mFrontier

Sun 11/23:45 pmSJU - IAD

Nonstop3h 56mFrontier

Deal found 9/16

$187

Sun 10/269:07 pmIAD - SJU

Nonstop3h 52mFrontier

Wed 10/295:51 pmSJU - IAD

2 stops22h 43mFrontier

Deal found 9/16

$201

Sun 10/269:45 amIAD - CUR

1 stop28h 25mAir Canada

Fri 10/313:10 pmCUR - IAD

1 stop29h 44mAir Canada

Deal found 9/15

$308

Thu 10/308:26 pmIAD - SJU

Nonstop3h 52mFrontier

Thu 11/63:45 pmSJU - IAD

Nonstop3h 56mFrontier

Deal found 9/15

$184

Thu 10/308:26 pmIAD - SJU

Nonstop3h 52mFrontier

Sun 11/23:45 pmSJU - IAD

Nonstop3h 56mFrontier

Deal found 9/15

$206

Thu 10/309:45 amIAD - CUR

1 stop28h 25mAir Canada

Thu 11/65:20 pmCUR - IAD

1 stop23h 31mAir Canada

Deal found 9/15

$291

One-way flights from Dulles Intl to Caribbean
Search for one-way flight options from Dulles Intl to Caribbean. Find affordable one-way fares based on user searches. Data last updated September 17, 2025.

Fri 9/263:15 pmIAD - SJU

2 stops18h 41mFrontier

Deal found 9/15

$117

Mon 12/85:32 pmIAD - SJU

Nonstop3h 50mUnited Airlines

Deal found 9/15

$118

Mon 9/291:55 pmIAD - SJU

2 stops20h 01mFrontier

Deal found 9/15

$119

Tue 12/25:14 pmIAD - SJU

1 stop7h 39mAvelo Airlines

Deal found 9/15

$120

Mon 11/107:01 amIAD - SJU

1 stop6h 16mDelta

Deal found 9/17

$123

Sat 11/810:12 pmIAD - CUR

2 stops39h 58mAir Canada

Deal found 9/15

$124

Sun 10/196:15 amIAD - SJU

1 stop7h 54mFrontier

Deal found 9/15

$126

Mon 10/610:20 amIAD - NAS

1 stop7h 10mAir Canada

Deal found 9/16

$127

Thu 10/308:26 pmIAD - SJU

Nonstop3h 52mFrontier

Deal found 9/15

$128

Thu 11/67:26 pmIAD - SJU

Nonstop3h 52mFrontier

Deal found 9/15

$129

Tue 10/289:45 amIAD - PLS

1 stop7h 55mAir Canada

Deal found 9/15

$129

Sun 10/269:45 amIAD - NAS

1 stop26h 45mAir Canada

Deal found 9/15

$130

Cheapflights Fare Finder

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

Fly to

Route

Depart

Return

Price

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Mon 11/10

5:32 pm-10:22 pm

Nonstop3h 50m

San Juan Luis Munoz Marin Intl

Thu 11/13

5:50 pm-8:55 pm

Nonstop4h 05m

$266

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Wed 10/29

5:32 pm-9:22 pm

Nonstop3h 50m

San Juan Luis Munoz Marin Intl

Fri 10/31

4:50 pm-8:55 pm

Nonstop4h 05m

$296

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Sat 11/1

5:32 pm-9:22 pm

Nonstop3h 50m

San Juan Luis Munoz Marin Intl

Fri 11/7

8:10 am-5:30 pm

1 stop10h 20m

$301

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Mon 12/8

5:32 pm-10:22 pm

Nonstop3h 50m

San Juan Luis Munoz Marin Intl

Mon 12/15

5:50 pm-8:55 pm

Nonstop4h 05m

$302

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Wed 10/1

10:45 am-8:38 pm

1 stop9h 53m

San Juan Luis Munoz Marin Intl

Tue 10/7

3:56 pm-12:21 am

1 stop8h 25m

$312

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Mon 12/15

5:32 pm-10:22 pm

Nonstop3h 50m

San Juan Luis Munoz Marin Intl

Mon 12/22

2:15 pm-9:15 pm

1 stop8h 00m

$337

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Sat 12/13

5:32 pm-10:22 pm

Nonstop3h 50m

San Juan Luis Munoz Marin Intl

Sat 12/20

8:30 am-11:35 am

Nonstop4h 05m

$339

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Wed 12/10

6:00 am-2:40 pm

1 stop7h 40m

San Juan Luis Munoz Marin Intl

Tue 12/16

8:10 am-5:30 pm

1 stop10h 20m

$341

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Sat 10/25

6:01 am-3:42 pm

1 stop9h 41m

San Juan Luis Munoz Marin Intl

Tue 10/28

7:10 am-5:30 pm

1 stop10h 20m

$341

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Sat 10/4

5:12 pm-11:57 pm

1 stop6h 45m

San Juan Luis Munoz Marin Intl

Sat 10/11

4:55 pm-8:52 pm

Nonstop3h 57m

$344

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 60 results

...

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 June is currently the most expensive (average of $339). 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?

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.

Reviews of airlines servicing Caribbean

Read reviews from past customers who have flown Delta, Copa Airlines, and United Airlines from Washington, D.C. Dulles Intl Airport to Caribbean. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,961 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,961 reviews

Delta

8.0

Very good

7,961 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Copa Airlines

7.6

Good

1,533 reviews

Delta

8.0

Very good

7,961 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,926 reviews

Delta

8.0

Very good

7,961 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,961 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Frontier

5.8

Fair

3,173 reviews

Delta

8.0

Very good

7,961 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

How long is the flight from Washington, D.C. Dulles Intl Airport to Caribbean?
For as low as $266, United Airlines can have you in Caribbean from Washington, D.C. Dulles Intl Airport in 3h 50m. The distance between Washington, D.C. Dulles Intl Airport and Caribbean is about 1573 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.
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 ($118), Delta ($123), and Air Canada ($124).
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 (75%), United Airlines (75%) or Brussels Airlines (70%) 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 $625, our data shows the cheapest flight currently is $77. When looking at the most popular route, (Washington, D.C. Dulles Intl - San Juan Luis Munoz Marin Intl), you can expect to pay $148 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 June is currently the most expensive (average of $339). 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

Browse thousands of different options on Cheapflights for your next trip

Top 9 airlines flying from Dulles Intl to Caribbean

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$115	Average$374	FlexibilityNo cancel fee	On-time62%
Spirit Airlines	Cheapest$135	Average$316	FlexibilityNo cancel fee	On-time65%
American Airlines	Cheapest$145	Average$667	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$164	Average$672	FlexibilityNo cancel fee	On-timeN/A
Avianca	Cheapest$167	Average$438	FlexibilityNo cancel fee	On-time71%
JetBlue	Cheapest$168	Average$390	FlexibilityNo cancel fee	On-time62%
United Airlines	Cheapest$277	Average$623	FlexibilityNo cancel fee	On-time69%
Copa Airlines	Cheapest$355	Average$497	FlexibilityNo cancel fee	On-time70%
Air Canada	Cheapest$450	Average$508	FlexibilityNo cancel fee	On-time67%

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$117+ 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 9/26. Fares are subject to change and may not be available on all flights or dates of travel.

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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 September 17, 2025.

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Find flight deals from Dulles Intl to Caribbean

Cheapest flights from Dulles Intl to CaribbeanExplore 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 September 17, 2025.

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 September 17, 2025.

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Best time to book a flight from Dulles Intl to Caribbean

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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?

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 September 17, 2025.

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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.

How long is the flight from Washington, D.C. Dulles Intl Airport to Caribbean?

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

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

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Alternative routes for Dulles Intl to Caribbean

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Top 9 airlines flying from Dulles Intl to Caribbean

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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 September 17, 2025.