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Algarve

$245+ Cheap flights from Dulles Intl (IAD) to Algarve

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 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — FAO
Sep 10 — Sep 171
Wed 9/10
Wed 9/17
1 adult, Economy
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Cheap flight deals from Dulles Intl to Algarve

Keep the following information in mind while searching for Dulles Intl to Algarve flight deals. Data was last updated September 5, 2025.

Round-trip from

$524
(oojo)

One-way from

$245
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$746
From Washington, D.C. Dulles Intl to Algarve
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One-way flight from Washington, D.C. Dulles Intl to Algarve
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Highest demand for flights based on searches. 20% potential increase in price ($240 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Dulles Intl to Algarve

Cheapest flights from Dulles Intl to Algarve
Explore the most affordable flight options available from Dulles Intl to Algarve. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 5, 2025.

This oojo deal was found by Cheapflights users on 9/4. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/910:30 pmIAD - FAO
1 stop20h 20mTAP AIR PORTUGAL
Sat 11/156:05 amFAO - IAD
1 stop14h 10mTAP AIR PORTUGAL
Deal found 9/4$524
This oojo deal was found by Cheapflights users on 9/3. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/75:00 pmIAD - FAO
1 stop25h 50mTAP AIR PORTUGAL
Wed 10/156:10 pmFAO - IAD
1 stop26h 10mTAP AIR PORTUGAL
Deal found 9/3$525
This oojo deal was found by Cheapflights users on 9/4. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1210:30 pmIAD - FAO
1 stop20h 20mTAP AIR PORTUGAL
Mon 12/224:35 pmFAO - IAD
1 stop27h 00mTAP AIR PORTUGAL
Deal found 9/4$646
This Mytrip deal was found by Cheapflights users on 9/3. 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.
Fri 10/1710:20 pmIAD - FAO
2 stops19h 20mMultiple Airlines
Fri 10/246:15 pmFAO - IAD
2 stops26h 35mMultiple Airlines
Deal found 9/3$662
This British Airways deal was found by Cheapflights users on 9/3. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/3010:45 pmIAD - FAO
1 stop15h 25mBritish Airways
Wed 10/88:00 pmFAO - IAD
1 stop24h 55mBritish Airways
Deal found 9/3$681
This AirNGo deal was found by Cheapflights users on 9/3. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/110:45 pmIAD - FAO
1 stop31h 50mBritish Airways
Wed 10/88:00 pmFAO - IAD
1 stop29h 15mBritish Airways
Deal found 9/3$682
This British Airways deal was found by Cheapflights users on 9/3. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/310:45 pmIAD - FAO
1 stop14h 05mBritish Airways
Fri 10/107:50 pmFAO - IAD
1 stop29h 30mBritish Airways
Deal found 9/3$701
This Mytrip deal was found by Cheapflights users on 9/3. 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.
Wed 10/18:45 pmIAD - FAO
2 stops20h 55mMultiple Airlines
Wed 10/88:45 pmFAO - IAD
2 stops24h 05mMultiple Airlines
Deal found 9/3$704
This Kiwi.com deal was found by Cheapflights users on 9/4. 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.
Thu 10/27:14 pmIAD - FAO
2 stops42h 26mMultiple Airlines
Thu 10/911:15 amFAO - IAD
1 stop14h 35mMultiple Airlines
Deal found 9/4$710
This oojo deal was found by Cheapflights users on 9/3. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1210:20 pmIAD - FAO
1 stop20h 30mTAP AIR PORTUGAL
Fri 9/196:05 amFAO - IAD
1 stop14h 15mTAP AIR PORTUGAL
Deal found 9/3$714

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Algarve 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 September 5, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Algarve that are best for you.

Fly from

Dulles Intl

Fly to

Algarve

Route

Depart

Return

Price

Washington, D.C.Faro

IAD - FAO

IADFAO

Washington, D.C. Dulles Intl

Sun 11/9

10:30 pm-11:50 pm

1 stop20h 20m

Faro

Sat 11/15

6:05 am-3:15 pm

1 stop14h 10m

$524

Washington, D.C.Faro

IAD - FAO

IADFAO

Washington, D.C. Dulles Intl

Fri 10/17

10:20 pm-11:50 pm

1 stop20h 30m

Faro

Fri 10/24

11:15 am-8:50 pm

1 stop14h 35m

$525

Washington, D.C.Faro

IAD - FAO

IADFAO

Washington, D.C. Dulles Intl

Tue 10/7

5:00 pm-11:50 pm

1 stop25h 50m

Faro

Wed 10/15

6:10 pm-3:20 pm

1 stop26h 10m

$525

Washington, D.C.Faro

IAD - FAO

IADFAO

Washington, D.C. Dulles Intl

Wed 10/29

11:30 pm-11:50 pm

1 stop20h 20m

Faro

Tue 11/4

6:05 am-2:35 pm

1 stop13h 30m

$525

Washington, D.C.Faro

IAD - FAO

IADFAO

Washington, D.C. Dulles Intl

Wed 1/7

10:30 pm-3:45 pm

1 stop12h 15m

Faro

Sun 1/11

6:05 am-9:00 pm

1 stop19h 55m

$616

Washington, D.C.Faro

IAD - FAO

IADFAO

Washington, D.C. Dulles Intl

Fri 12/12

10:30 pm-11:50 pm

1 stop20h 20m

Faro

Mon 12/22

4:35 pm-2:35 pm

1 stop27h 00m

$646

Washington, D.C.Faro

IAD - FAO

IADFAO

Washington, D.C. Dulles Intl

Fri 10/17

10:20 pm-10:40 pm

2 stops19h 20m

Faro

Fri 10/24

6:15 pm-3:50 pm

2 stops26h 35m

$662

Washington, D.C.Faro

IAD - FAO

IADFAO

Washington, D.C. Dulles Intl

Tue 9/30

10:45 pm-7:10 pm

1 stop15h 25m

Faro

Wed 10/8

8:00 pm-3:55 pm

1 stop24h 55m

$681

Washington, D.C.Faro

IAD - FAO

IADFAO

Washington, D.C. Dulles Intl

Wed 10/1

10:45 pm-11:35 am

1 stop31h 50m

Faro

Wed 10/8

8:00 pm-8:15 pm

1 stop29h 15m

$682

Washington, D.C.Faro

IAD - FAO

IADFAO

Washington, D.C. Dulles Intl

Wed 1/7

8:30 pm-11:10 am

2 stops57h 40m

Faro

Sun 1/11

10:55 am-5:15 pm

2 stops35h 20m

$684

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/4

Best time to book a flight from Dulles Intl to Algarve

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

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

Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Algarve (average of $628). Flying from Washington, D.C. Dulles Intl Airport to Algarve in June is currently the most expensive (average of $1,329). 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.

Reviews of airlines servicing Algarve

Get insights into the airlines that provide service to Algarve. 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 Algarve. Reviews last updated September 5, 2025.
Read reviews from past customers who have flown Aer Lingus and TAP AIR PORTUGAL from Washington, D.C. Dulles Intl Airport to Algarve. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.2
Good
1,252 reviews

Boarding

7.3

Crew

8.0

Entertainment

6.9

Comfort

7.1

Food

6.5

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - DUB

Most airlines board by group even though passengers are seated at the back. At Seatac, passengers were seated starting at the back. Otherwise, flight was good.
Aer Lingus
7.2
Good
1,252 reviews
Aer Lingus
7.2
Good
1,252 reviews

Boarding

7.3

Crew

8.0

Entertainment

6.9

Comfort

7.1

Food

6.5

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - DUB

Most airlines board by group even though passengers are seated at the back. At Seatac, passengers were seated starting at the back. Otherwise, flight was good.
TAP AIR PORTUGAL
7.1
Good
1,972 reviews
Aer Lingus
7.2
Good
1,252 reviews

Boarding

7.3

Crew

8.0

Entertainment

6.9

Comfort

7.1

Food

6.5

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - DUB

Most airlines board by group even though passengers are seated at the back. At Seatac, passengers were seated starting at the back. Otherwise, flight was good.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Algarve. 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 Algarve?

    Airlines like TAP AIR PORTUGAL fly from Washington, D.C. Dulles Intl Airport to Algarve in about 20h 20m. The time it takes to get you to your destination can typically vary by up to . Washington, D.C. Dulles Intl Airport and Algarve are separated by a distance of 3688 mi.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Algarve (average of $628). Flying from Washington, D.C. Dulles Intl Airport to Algarve in June is currently the most expensive (average of $1,329). 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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Top 2 airlines flying from Dulles Intl to Algarve

Discover the top 2 airlines that operate flights from Dulles Intl to Algarve. 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 September 5, 2025.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$543Average$938FlexibilityNo cancel feeOn-timeN/A
Aer LingusCheapest$738Average$919FlexibilityNo cancel feeOn-timeN/A

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