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Portimão

$379+ Cheap flights from Dulles Intl (IAD) to Portimão, Portugal

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 11/11. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — FAO
Dec 3 — Dec 101
Wed 12/3
Wed 12/10
1 adult, Economy
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Find flight deals from Dulles Intl to Portimão

Cheapest flights from Dulles Intl to Portimão
Explore the most affordable flight options available from Dulles Intl to Portimão. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 3, 2025.

This oojo deal was found by Cheapflights users on 10/31. 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 11/3010:30 pmIAD - FAO
1 stop12h 15mTAP AIR PORTUGAL
Fri 12/511:15 amFAO - IAD
1 stop14h 45mTAP AIR PORTUGAL
Deal found 10/31$594
This KAYAK deal was found by Cheapflights users on 11/1. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2310:30 pmIAD - FAO
1 stop12h 15mTAP AIR PORTUGAL
Tue 12/24:35 pmFAO - IAD
1 stop33h 25mTAP AIR PORTUGAL
Deal found 11/1$867
This Mytrip deal was found by Cheapflights users on 11/1. 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 11/510:30 pmIAD - FAO
2 stops19h 00mMultiple Airlines
Fri 11/76:05 amFAO - IAD
3 stops17h 40mMultiple Airlines
Deal found 11/1$874
This KAYAK deal was found by Cheapflights users on 11/1. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1910:30 pmIAD - FAO
1 stop20h 20mTAP AIR PORTUGAL
Tue 12/24:35 pmFAO - IAD
1 stop33h 25mTAP AIR PORTUGAL
Deal found 11/1$907
This TAP AIR PORTUGAL deal was found by Cheapflights users on 11/1. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2310:30 pmIAD - FAO
1 stop20h 20mTAP AIR PORTUGAL
Mon 12/14:35 pmFAO - IAD
1 stop27h 00mTAP AIR PORTUGAL
Deal found 11/1$910
This KAYAK deal was found by Cheapflights users on 11/1. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1910:30 pmIAD - FAO
1 stop20h 20mTAP AIR PORTUGAL
Mon 12/14:35 pmFAO - IAD
1 stop27h 00mTAP AIR PORTUGAL
Deal found 11/1$935
This TAP AIR PORTUGAL deal was found by Cheapflights users on 11/1. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/245:30 pmIAD - FAO
1 stop11h 55mTAP AIR PORTUGAL
Mon 12/14:35 pmFAO - IAD
1 stop27h 00mTAP AIR PORTUGAL
Deal found 11/1$950
This Kiwi.com deal was found by Cheapflights users on 11/2. 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.
Wed 11/510:30 pmIAD - FAO
2 stops40h 55mMultiple Airlines
Sat 11/1511:10 amFAO - IAD
1 stop13h 20mMultiple Airlines
Deal found 11/2$978

Cheap flight deals from Dulles Intl to Portimão

Keep the following information in mind while searching for Dulles Intl to Portimão flight deals. Data was last updated November 3, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$543
(oojo)

One-way from

$379
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$884
Provider with most accurate pricing for Washington, D.C. (WAS)-Faro flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Faro flights.
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From Washington, D.C. Dulles Intl to Portimão
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Portimão
Search Deals
Highest demand for flights based on searches. 26% potential increase in price ($324 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($48 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Portimão 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 November 3, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Portimão that are best for you.

Fly from

Dulles Intl

Fly to

Portimão

Route

Depart

Return

Price

Washington, D.C.Faro

IAD - FAO

IADFAO

Washington, D.C. Dulles Intl

Fri 1/16

10:30 pm-11:50 pm

1 stop20h 20m

Faro

Sat 1/24

6:05 am-3:15 pm

1 stop14h 10m

$543

Washington, D.C.Faro

IAD - FAO

IADFAO

Washington, D.C. Dulles Intl

Sat 1/17

5:30 pm-3:45 pm

1 stop17h 15m

Faro

Fri 1/23

11:15 am-9:00 pm

1 stop14h 45m

$544

Washington, D.C.Faro

IAD - FAO

IADFAO

Washington, D.C. Dulles Intl

Mon 11/10

8:30 pm-9:45 am

2 stops32h 15m

Faro

Sat 11/22

5:10 pm-11:31 am

2 stops47h 21m

$692

Washington, D.C.Faro

IAD - FAO

IADFAO

Washington, D.C. Dulles Intl

Sat 1/17

9:00 am-5:10 pm

2 stops27h 10m

Faro

Fri 1/23

2:20 pm-4:40 pm

2 stops31h 20m

$739

Washington, D.C.Faro

IAD - FAO

IADFAO

Washington, D.C. Dulles Intl

Sun 11/30

9:45 am-11:50 pm

3 stops33h 05m

Faro

Fri 12/5

11:15 am-3:50 pm

3 stops33h 35m

$770

Washington, D.C.Faro

IAD - FAO

IADFAO

Washington, D.C. Dulles Intl

Thu 11/13

8:30 pm-11:10 am

2 stops33h 40m

Faro

Tue 11/18

10:50 am-5:15 pm

1 stop35h 25m

$816

Washington, D.C.Faro

IAD - FAO

IADFAO

Washington, D.C. Dulles Intl

Fri 1/16

12:18 pm-4:20 pm

2 stops23h 02m

Faro

Sat 1/24

12:00 pm-3:20 pm

2 stops56h 20m

$830

Washington, D.C.Faro

IAD - FAO

IADFAO

Washington, D.C. Dulles Intl

Tue 11/11

12:11 pm-10:45 pm

3 stops29h 34m

$391

Washington, D.C.Faro

IAD - FAO

IADFAO

Washington, D.C. Dulles Intl

Fri 11/21

6:46 pm-9:50 am

3 stops34h 04m

$485

Washington, D.C.Faro

IAD - FAO

IADFAO

Washington, D.C. Dulles Intl

Sat 11/22

5:05 pm-1:25 pm

2 stops15h 20m

$557

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/2

Showing 1-10 of 12 results
1
2

Best time to book a flight from Dulles Intl to Portimão

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

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

Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Portimão (average of $512). Flying from Washington, D.C. Dulles Intl Airport to Portimão in June is currently the most expensive (average of $889). 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.

How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to Portimão?

Reviews of airlines servicing Portimão

Get insights into the airlines that provide service to Portimão. 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 Portimão. Reviews last updated November 3, 2025.
See what other customers who have flown with Aer Lingus and TAP AIR PORTUGAL from Washington, D.C. Dulles Intl Airport to Portimão have to say. 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
1,365 reviews

Boarding

7.4

Entertainment

6.9

Comfort

7.1

Crew

8.0

Food

6.6

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
1,365 reviews
Aer Lingus
7.2
Good
1,365 reviews

Boarding

7.4

Entertainment

6.9

Comfort

7.1

Crew

8.0

Food

6.6

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
2,044 reviews
Aer Lingus
7.2
Good
1,365 reviews

Boarding

7.4

Entertainment

6.9

Comfort

7.1

Crew

8.0

Food

6.6

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 Portimão. 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 Portimão?

    A quick flight from Washington, D.C. Dulles Intl Airport to Portimão can take about 20h 20m. TAP AIR PORTUGAL provides one of the quickest options available for as low as $543. The distance from Washington, D.C. Dulles Intl Airport to Portimão is about 3688 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Portimão (average of $512). Flying from Washington, D.C. Dulles Intl Airport to Portimão in June is currently the most expensive (average of $889). 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

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Top 2 airlines flying from Dulles Intl to Portimão

Discover the top 2 airlines that operate flights from Dulles Intl to Portimão. 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 November 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$543Average$963FlexibilityNo cancel feeOn-timeN/A
Aer LingusCheapest$738Average$939FlexibilityNo cancel feeOn-timeN/A

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