In terms of precipitation, rainfall in Algarve ranges from 0.1 - 4.6 inches per month. December is typically the wettest month, when rainfall can reach 4.6 in. July is typically the driest time to visit Algarve when rainfall is around 0.1 in.

If weather is an important factor for your trip to Algarve, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 53.6 F).

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to Algarve?

Travelers have found it’s best to book a flight 59 days in advance to save up to 133% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 59 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Washington, D.C. Dulles Intl Airport to Algarve 1-2 weeks in advance for as low as $595, or $1,258 for flights within the next 24 hours.

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

Flights from Washington, D.C. Dulles Intl Airport to Algarve lean towards being more expensive in June. Prices are generally better when you fly from Washington, D.C. Dulles Intl Airport to Algarve in November, with the cheapest ticket starting at $506.

What is the cheapest time of day to fly from IAD to SAL?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. Dulles Intl Airport to Algarve as you normally would.

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.

$331+ Flights from Washington, D.C. Dulles Intl Airport to Algarve

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Cheap flight deals from Dulles Intl to Algarve

Round-trip from	$543 (oojo)
One-way from	$331 (Kiwi.com)
Popular in	June
Cheapest in	November
Average price	$1,066

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. 21% potential increase in price ($243 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 July 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 July 21, 2025.

Tue 9/210:20 pmIAD - FAO

1 stop14h 00mTAP AIR PORTUGAL

Tue 9/96:05 amFAO - IAD

1 stop14h 15mTAP AIR PORTUGAL

Deal found 7/19

$543

Thu 10/2310:05 pmIAD - FAO

2 stops30h 25mScandinavian Airlines

Tue 10/285:55 pmFAO - IAD

2 stops28h 20mScandinavian Airlines

Deal found 7/19

$551

Thu 9/42:25 pmIAD - FAO

2 stops22h 15mMultiple Airlines

Thu 9/116:10 pmFAO - IAD

3 stops26h 40mMultiple Airlines

Deal found 7/21

$599

Wed 8/205:20 pmIAD - FAO

1 stop20h 40mAer Lingus

Wed 8/2711:40 amFAO - IAD

1 stop12h 50mAer Lingus

Deal found 7/21

$613

Best flights from Dulles Intl to Algarve
Discover carefully curated flight deals from Dulles Intl to Algarve that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 21, 2025.

Tue 9/210:20 pmIAD - FAO

1 stop14h 00mTAP AIR PORTUGAL

Tue 9/96:05 amFAO - IAD

1 stop14h 15mTAP AIR PORTUGAL

Deal found 7/19

$543

Thu 9/42:25 pmIAD - FAO

2 stops22h 15mMultiple Airlines

Thu 9/116:10 pmFAO - IAD

3 stops26h 40mMultiple Airlines

Deal found 7/21

$599

Wed 8/205:20 pmIAD - FAO

1 stop20h 40mAer Lingus

Wed 8/2711:40 amFAO - IAD

1 stop12h 50mAer Lingus

Deal found 7/21

$613

Fri 9/1210:05 pmIAD - FAO

1 stop14h 50mScandinavian Airlines

Sat 9/277:35 pmFAO - IAD

2 stops29h 24mScandinavian Airlines

Deal found 7/21

$742

Wed 8/208:45 pmIAD - FAO

1 stop15h 55mSWISS

Wed 8/277:10 pmFAO - IAD

1 stop26h 05mSWISS

Deal found 7/21

$760

Mon 8/185:25 pmIAD - FAO

1 stop11h 30mUnited Airlines

Mon 8/253:25 pmFAO - IAD

2 stops38h 07mUnited Airlines

Deal found 7/18

$769

Last-minute flights from Dulles Intl to Algarve
Discover last-minute flight deals from Dulles Intl to Algarve. Data last updated July 21, 2025 and is based on user searches.

Tue 8/1210:40 pmIAD - FAO

1 stop15h 30mBritish Airways

Wed 8/208:00 pmFAO - IAD

1 stop24h 55mBritish Airways

Deal found 7/18

$5,149

Mon 8/1810:20 pmIAD - FAO

1 stop14h 00mTAP AIR PORTUGAL

Mon 8/256:10 pmFAO - IAD

1 stop26h 10mTAP AIR PORTUGAL

Deal found 7/18

$546

Mon 8/185:25 pmIAD - FAO

1 stop11h 30mUnited Airlines

Mon 8/253:25 pmFAO - IAD

2 stops38h 07mUnited Airlines

Deal found 7/18

$769

Wed 8/205:20 pmIAD - FAO

1 stop20h 40mAer Lingus

Wed 8/2711:40 amFAO - IAD

1 stop12h 50mAer Lingus

Deal found 7/21

$613

Wed 8/208:45 pmIAD - FAO

1 stop15h 55mSWISS

Wed 8/277:10 pmFAO - IAD

1 stop26h 05mSWISS

Deal found 7/21

$760

Wed 8/206:10 pmIAD - FAO

1 stop15h 25mLufthansa

Wed 8/273:25 pmFAO - IAD

1 stop27h 05mLufthansa

Deal found 7/21

$777

Wed 8/201:30 pmIAD - FAO

2 stops29h 20mTurkish Airlines

Wed 8/276:05 amFAO - IAD

2 stops34h 40mTurkish Airlines

Deal found 7/21

$1,293

Tue 8/2610:20 pmIAD - FAO

2 stops16h 15mMultiple Airlines

Tue 9/25:40 pmFAO - IAD

2 stops26h 40mMultiple Airlines

Deal found 7/19

$628

Thu 8/283:41 pmIAD - FAO

2 stops17h 54mAir Canada

Mon 9/86:05 amFAO - IAD

3 stops20h 20mAir Canada

Deal found 7/19

$5,173

One-way flights from Dulles Intl to Algarve
Search for one-way flight options from Dulles Intl to Algarve. Find affordable one-way fares based on user searches. Data last updated July 21, 2025.

Mon 9/111:15 pmIAD - FAO

2 stops29h 00mMultiple Airlines

Deal found 7/20

$331

Cheapflights Fare Finder

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

Fly to

Route

Depart

Return

Price

Washington, D.C.Faro

IAD - FAO

IADFAO

Washington, D.C. Dulles Intl

Tue 9/2

10:20 pm-5:20 pm

1 stop14h 00m

Faro

Tue 9/9

6:05 am-3:20 pm

1 stop14h 15m

$543

Washington, D.C.Faro

IAD - FAO

IADFAO

Washington, D.C. Dulles Intl

Thu 10/23

10:05 pm-9:30 am

2 stops30h 25m

Faro

Tue 10/28

5:55 pm-6:15 pm

2 stops28h 20m

$551

Washington, D.C.Faro

IAD - FAO

IADFAO

Washington, D.C. Dulles Intl

Thu 9/4

2:25 pm-5:40 pm

2 stops22h 15m

Faro

Thu 9/11

6:10 pm-3:50 pm

3 stops26h 40m

$599

Washington, D.C.Faro

IAD - FAO

IADFAO

Washington, D.C. Dulles Intl

Wed 8/20

5:20 pm-7:00 pm

1 stop20h 40m

Faro

Wed 8/27

11:40 am-7:30 pm

1 stop12h 50m

$613

Washington, D.C.Faro

IAD - FAO

IADFAO

Washington, D.C. Dulles Intl

Mon 9/1

11:15 pm-9:15 am

2 stops29h 00m

$331

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/20

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

Read reviews from past customers who have flown SWISS, United Airlines, and Scandinavian Airlines 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.

SWISS

7.5

Good

1,670 reviews

Reviews

1 / 20

2.0

Mediocre

Jeff,Feb 2025

BER - ZRH

Ground and flight crew are lazy. No food. Late. Ryanair is better.

SWISS

7.5

Good

1,670 reviews

SWISS

7.5

Good

1,670 reviews

Reviews

1 / 20

2.0

Mediocre

Jeff,Feb 2025

BER - ZRH

Ground and flight crew are lazy. No food. Late. Ryanair is better.

United Airlines

7.4

Good

8,868 reviews

SWISS

7.5

Good

1,670 reviews

Reviews

1 / 20

2.0

Mediocre

Jeff,Feb 2025

BER - ZRH

Ground and flight crew are lazy. No food. Late. Ryanair is better.

Scandinavian Airlines

7.3

Good

1,435 reviews

SWISS

7.5

Good

1,670 reviews

Reviews

1 / 20

2.0

Mediocre

Jeff,Feb 2025

BER - ZRH

Ground and flight crew are lazy. No food. Late. Ryanair is better.

Aer Lingus

7.1

Good

1,177 reviews

SWISS

7.5

Good

1,670 reviews

Reviews

1 / 20

2.0

Mediocre

Jeff,Feb 2025

BER - ZRH

Ground and flight crew are lazy. No food. Late. Ryanair is better.

TAP AIR PORTUGAL

7.1

Good

1,926 reviews

SWISS

7.5

Good

1,670 reviews

Reviews

1 / 20

2.0

Mediocre

Jeff,Feb 2025

BER - ZRH

Ground and flight crew are lazy. No food. Late. Ryanair is better.

Related info for your journey

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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Dulles Intl to Algarve

Top 2 airlines flying from Dulles Intl to Algarve

Airline	Cheapest	Average	Flexibility	On-time
TAP AIR PORTUGAL	Cheapest$541	Average$907	FlexibilityNo cancel fee	On-timeN/A
Aer Lingus	Cheapest$738	Average$939	FlexibilityNo cancel fee	On-timeN/A

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$331+ 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 9/1. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Dulles Intl to Algarve with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

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 July 21, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Dulles Intl to Algarve

Cheapest flights from Dulles Intl to AlgarveExplore 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 July 21, 2025.

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 July 21, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Algarve that are best for you.

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.

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?

Reviews of airlines servicing Algarve

Read reviews from past customers who have flown SWISS, United Airlines, and Scandinavian Airlines 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.

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.

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

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

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

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Dulles Intl to Algarve

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Dulles Intl to Algarve

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Travel Smart

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 July 21, 2025.