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$82+ Cheap flights from Dulles Intl (IAD) to Puerto Rico

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 2/21. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SJU
Jan 21 — Jan 281
Tue 1/21
Tue 1/28
1 adult, Economy
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Cheap flight deals from Dulles Intl to Puerto Rico

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Puerto Rico (PR0). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 16, 2025.

Round-trip from

$125
(Mytrip)

One-way from

$82
(Mytrip)
From Washington, D.C. Dulles Intl to Puerto Rico
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One-way flight from Washington, D.C. Dulles Intl to Puerto Rico
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Find flight deals from Dulles Intl to Puerto Rico

Cheapest flights from Dulles Intl to Puerto Rico
Explore the most affordable flight options available from Dulles Intl to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 16, 2025.

This Mytrip deal was found by Cheapflights users on 1/16. 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.
Mon 2/106:20 pmIAD - BQN
1 stop7h 28mFrontier
Fri 2/143:51 amBQN - IAD
1 stop14h 22mFrontier
Deal found 1/16$125
This Booking.com deal was found by Cheapflights users on 1/16. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/306:57 pmIAD - SJU
1 stop18h 01mFrontier
Sun 2/26:55 pmSJU - IAD
1 stop23h 25mFrontier
Deal found 1/16$180
This United Airlines deal was found by Cheapflights users on 1/16. 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 1/295:35 pmIAD - SJU
Nonstop3h 47mUnited Airlines
Sat 2/18:10 amSJU - IAD
Nonstop4h 00mUnited Airlines
Deal found 1/16$188
This American Airlines deal was found by Cheapflights users on 1/16. 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.
Sun 1/191:53 pmIAD - SJU
1 stop6h 45mAmerican Airlines
Fri 1/248:05 amSJU - IAD
1 stop6h 18mAmerican Airlines
Deal found 1/16$267
This Mytrip deal was found by Cheapflights users on 1/16. 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.
Tue 2/255:40 pmIAD - SJU
3 stops28h 42mMultiple Airlines
Thu 2/279:34 pmSJU - IAD
3 stops19h 41mMultiple Airlines
Deal found 1/16$294
This Delta deal was found by Cheapflights users on 1/16. 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 1/1912:05 pmIAD - SJU
1 stop10h 54mDelta
Fri 1/246:15 amSJU - IAD
1 stop6h 42mDelta
Deal found 1/16$297
This United Airlines deal was found by Cheapflights users on 1/15. 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.
Thu 2/68:25 amIAD - BQN
2 stops14h 32mUnited Airlines
Tue 2/111:09 amBQN - IAD
1 stop7h 10mUnited Airlines
Deal found 1/15$375
This CheapOair deal was found by Cheapflights users on 1/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/156:03 pmIAD - PSE
1 stop16h 50mFrontier
Tue 2/1812:53 pmPSE - IAD
1 stop29h 20mFrontier
Deal found 1/14$544
This United deal was found by Cheapflights users on 1/15. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/176:00 amIAD - MAZ
2 stops29h 52mMultiple Airlines
Mon 2/244:13 pmMAZ - IAD
1 stop19h 57mMultiple Airlines
Deal found 1/15$618
This United deal was found by Cheapflights users on 1/16. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/45:35 pmIAD - VQS
1 stop14h 55mMultiple Airlines
Fri 2/73:18 pmVQS - IAD
1 stop6h 32mMultiple Airlines
Deal found 1/16$648
This United deal was found by Cheapflights users on 1/15. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/238:30 amIAD - CPX
1 stop23h 04mMultiple Airlines
Thu 2/273:05 pmCPX - IAD
1 stop6h 45mMultiple Airlines
Deal found 1/15$729
This United deal was found by Cheapflights users on 1/16. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/88:30 amIAD - CPX
1 stop7h 21mUnited Airlines
Fri 12/1210:13 amCPX - IAD
2 stops11h 20mUnited Airlines
Deal found 1/16$1,557

Find flights from Dulles Intl to Puerto Rico within your budget

Customize your flight search to find flights from Dulles Intl to Puerto Rico 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 January 16, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Washington, D.C.Aguadilla

IAD - BQN

IADBQN

Washington, D.C. Dulles Intl

Mon 2/10

6:20 pm-2:48 am

1 stop7h 28m

Aguadilla Borinquen

Fri 2/14

3:51 am-5:13 pm

1 stop14h 22m

$125

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Fri 1/31

12:58 pm-12:44 am

1 stop10h 46m

San Juan Luis Munoz Marin Intl

Sun 2/2

6:55 pm-5:20 pm

1 stop23h 25m

$180

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Wed 1/29

5:35 pm-10:22 pm

Nonstop3h 47m

San Juan Luis Munoz Marin Intl

Sat 2/1

8:10 am-11:10 am

Nonstop4h 00m

$188

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Tue 1/28

9:11 am-10:07 pm

1 stop11h 56m

San Juan Luis Munoz Marin Intl

Fri 1/31

4:40 pm-8:41 am

1 stop17h 01m

$218

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Tue 3/18

7:35 am-4:06 pm

1 stop8h 31m

San Juan Luis Munoz Marin Intl

Thu 3/20

6:15 am-4:19 pm

1 stop10h 04m

$250

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Sun 1/26

4:14 pm-1:41 pm

1 stop20h 27m

San Juan Luis Munoz Marin Intl

Sun 2/2

9:22 pm-5:20 pm

2 stops20h 58m

$273

Washington, D.C.Aguadilla

IAD - BQN

IADBQN

Washington, D.C. Dulles Intl

Thu 2/6

8:25 am-11:57 pm

2 stops14h 32m

Aguadilla Borinquen

Tue 2/11

1:09 am-7:19 am

1 stop7h 10m

$375

Washington, D.C.Mayagüez

IAD - MAZ

IADMAZ

Washington, D.C. Dulles Intl

Mon 2/17

6:00 am-12:52 pm

2 stops29h 52m

Mayagüez Eugenio M De Hostos

Mon 2/24

4:13 pm-11:10 am

1 stop19h 57m

$618

Washington, D.C.Culebra

IAD - CPX

IADCPX

Washington, D.C. Dulles Intl

Sun 2/23

8:30 am-8:34 am

1 stop23h 04m

Culebra

Thu 2/27

3:05 pm-8:50 pm

1 stop6h 45m

$729

Washington, D.C.Vieques

IAD - VQS

IADVQS

Washington, D.C. Dulles Intl

Fri 1/31

5:35 pm-8:45 am

1 stop14h 10m

Vieques

Mon 2/3

11:23 am-8:20 pm

2 stops9h 57m

$863

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/15

Showing 1-10 of 26 results
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Best time to book a flight from Dulles Intl to Puerto Rico

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

Get recent, data-driven insights about flights from Dulles Intl to Puerto Rico 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 Puerto Rico?

Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Puerto Rico (average of $254). Flying from Washington, D.C. Dulles Intl Airport to Puerto Rico in March is currently the most expensive (average of $378). 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 PR?

Find hourly flight availability from Dulles Intl to Puerto Rico. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 16, 2025.

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

Explore weekly flight availability from Dulles Intl to Puerto Rico. 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 January 16, 2025.

The most flights from IAD to PR0 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 Puerto Rico by month

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

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

Temperature in Puerto Rico by month

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

If weather is an important factor for your trip to Puerto Rico, 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 Puerto Rico

Get insights into the airlines that provide service to Puerto Rico. 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 Puerto Rico. Reviews last updated January 16, 2025.
Read through reviews of airlines operating flights from Washington, D.C. to Puerto Rico, such as United Airlines, Delta and Frontier. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,659 reviews

Overall

8.1

Boarding

8.2

Food

7.2

Crew

8.7

Entertainment

7.7

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,659 reviews
Southwest
8.1
Very good
4,659 reviews

Overall

8.1

Boarding

8.2

Food

7.2

Crew

8.7

Entertainment

7.7

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,511 reviews
Southwest
8.1
Very good
4,659 reviews

Overall

8.1

Boarding

8.2

Food

7.2

Crew

8.7

Entertainment

7.7

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,965 reviews
Southwest
8.1
Very good
4,659 reviews

Overall

8.1

Boarding

8.2

Food

7.2

Crew

8.7

Entertainment

7.7

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,659 reviews

Overall

8.1

Boarding

8.2

Food

7.2

Crew

8.7

Entertainment

7.7

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Air Canada
7.0
Good
8,587 reviews
Southwest
8.1
Very good
4,659 reviews

Overall

8.1

Boarding

8.2

Food

7.2

Crew

8.7

Entertainment

7.7

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Related info for your journey

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

    The cheapest airlines for a one-way flight from Washington, D.C. Dulles Intl Airport to Puerto Rico are Frontier ($82), United Airlines ($125), and American Airlines ($135).

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

    The most popular route from Washington, D.C. Dulles Intl Airport to Puerto Rico is Washington, D.C. Dulles Intl - San Juan Luis Munoz Marin Intl. You may also consider Washington, D.C. Dulles Intl - Vieques or Washington, D.C. Dulles Intl - Culebra.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Washington, D.C. Dulles Intl Airport to Puerto Rico on time: Air Canada (70%), United Airlines (70%), Brussels Airlines (59%).

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

    The cheapest flight price from Washington, D.C. Dulles Intl Airport to Puerto Rico is $167. On average you can expect to pay $1,014. The most popular route, (Washington, D.C. Dulles Intl - San Juan Luis Munoz Marin Intl), can usually be booked for $134.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dulles Intl to Puerto Rico 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 Puerto Rico?

    Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Puerto Rico (average of $254). Flying from Washington, D.C. Dulles Intl Airport to Puerto Rico in March is currently the most expensive (average of $378). 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 Puerto Rico

See prices for flight routes from nearby airports that may be better suited for you.
Baltimore to Luis Munoz Marin Intl flights
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Baltimore to Kingston flights

Top 6 airlines flying from Dulles Intl to Puerto Rico

Discover the top 6 airlines that operate flights from Dulles Intl to Puerto Rico. 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 January 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$96Average$260FlexibilityNo cancel feeOn-time65%
FrontierCheapest$115Average$265FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$203Average$385FlexibilityNo cancel feeOn-time62%
DeltaCheapest$238Average$388FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$266Average$855FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$301Average$519FlexibilityNo cancel feeOn-time69%
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