$295 Find Cheap Flights from Washington Dulles Airport to Algarve - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Algarve departing on 10/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Book Cheap Dulles Intl to Algarve Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Algarve that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Dulles Intl to Algarve

Sat, Sep 19 - Fri, Oct 2
TAP AIR PORTUGAL Logo
10:35 pm - 5:20 pmIAD  Washington, D.C. Dulles Intl-FAO Faro
13h 45m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
6:20 pm - 3:10 pmFAO  Faro-IAD Washington, D.C. Dulles Intl
25h 50m1 stop Lisbon Humberto Delgado
$701TAP AIR PORTUGAL
Fri, Nov 13 - Mon, Nov 16
TAP AIR PORTUGAL Logo
10:30 pm - 3:40 pmIAD  Washington, D.C. Dulles Intl-FAO Faro
12h 10m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
4:30 pm - 2:45 pmFAO  Faro-IAD Washington, D.C. Dulles Intl
27h 15m1 stop Lisbon Humberto Delgado
$726TAP AIR PORTUGAL
Tue, Nov 10 - Wed, Nov 18
TAP AIR PORTUGAL Logo
5:25 pm - 10:20 amIAD  Washington, D.C. Dulles Intl-FAO Faro
11h 55m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
6:05 am - 8:35 pmFAO  Faro-IAD Washington, D.C. Dulles Intl
19h 30m1 stop Lisbon Humberto Delgado
$726TAP AIR PORTUGAL
Thu, Nov 5 - Fri, Nov 13
TAP AIR PORTUGAL Logo
5:25 pm - 3:40 pmIAD  Washington, D.C. Dulles Intl-FAO Faro
17h 15m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
11:10 am - 8:35 pmFAO  Faro-IAD Washington, D.C. Dulles Intl
14h 25m1 stop Lisbon Humberto Delgado
$726TAP AIR PORTUGAL
Fri, Oct 30 - Wed, Nov 4
TAP AIR PORTUGAL Logo
11:30 pm - 3:40 pmIAD  Washington, D.C. Dulles Intl-FAO Faro
12h 10m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
6:05 am - 8:35 pmFAO  Faro-IAD Washington, D.C. Dulles Intl
19h 30m1 stop Lisbon Humberto Delgado
$727TAP AIR PORTUGAL
Wed, Sep 23 - Tue, Sep 29
Multiple Airlines Logo
5:45 pm - 11:30 pmIAD  Washington, D.C. Dulles Intl-FAO Faro
24h 45m2 stops Lisbon Humberto Delgado Madrid Barajas
Multiple Airlines Logo
8:10 pm - 3:10 pmFAO  Faro-IAD Washington, D.C. Dulles Intl
24h 00m2 stops Madrid Barajas Lisbon Humberto Delgado
$752Multiple Airlines
Tue, Nov 10 - Wed, Nov 18
KLM Logo
12:35 pm - 9:30 amIAD  Washington, D.C. Dulles Intl-FAO Faro
15h 55m2 stops New York John F Kennedy Intl Amsterdam Schiphol
KLM Logo
6:00 pm - 3:45 pmFAO  Faro-IAD Washington, D.C. Dulles Intl
26h 45m1 stop Amsterdam Schiphol
$755KLM
Tue, Nov 10 - Wed, Nov 18
KLM Logo
12:35 pm - 9:30 amIAD  Washington, D.C. Dulles Intl-FAO Faro
15h 55m2 stops New York John F Kennedy Intl Amsterdam Schiphol
KLM Logo
6:00 pm - 3:45 pmFAO  Faro-IAD Washington, D.C. Dulles Intl
26h 45m1 stop Amsterdam Schiphol
$756KLM
Tue, Nov 10 - Wed, Nov 18
KLM Logo
6:20 pm - 1:50 pmIAD  Washington, D.C. Dulles Intl-FAO Faro
14h 30m2 stops New York John F Kennedy Intl Amsterdam Schiphol
KLM Logo
6:00 pm - 4:26 pmFAO  Faro-IAD Washington, D.C. Dulles Intl
27h 26m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County
$765KLM
Tue, Aug 18 - Sat, Aug 22
Aer Lingus Logo
5:15 pm - 2:50 pmIAD  Washington, D.C. Dulles Intl-FAO Faro
16h 35m1 stop Dublin
Aer Lingus Logo
10:50 pm - 3:45 pmFAO  Faro-IAD Washington, D.C. Dulles Intl
21h 55m1 stop Dublin
$1,414Aer Lingus
Booking Insights

KAYAK's insights & trends for Dulles Intl to Algarve flights

Get data-powered insights and trends into flights from Dulles Intl to Algarve to help you find the cheapest flights, the best time to fly and much more.

Can I save money by flying with a layover from Washington, D.C. Dulles Intl Airport to Algarve?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $559, prices are generally cheapest when you fly direct.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Algarve, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Washington, D.C. Dulles Intl Airport to Algarve is February, when tickets cost $695 (return) on average. On the other hand, the most expensive months are November and July, when the average cost of round-trip tickets is $2,207 and $1,651 respectively.

Good to know

Low season

February

Cheapest flight

$295
Best time to beat the crowds with an average 38% drop in price.
Most popular time to fly and prices are also 5% lower on average.
Flight from Washington Dulles Airport to Faro

FAQs - booking Algarve flights

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to Algarve?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington Dulles Airport to Algarve.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to Algarve?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Washington Dulles Airport to Algarve is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington Dulles Airport to Algarve?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Washington Dulles Airport to Algarve with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport to Algarve?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Washington Dulles Airport to Algarve up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Dulles Intl to Algarve

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Algarve. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Dulles Intl to Algarve? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.3
Aer LingusOverall score based on 1691 reviews
7.4Boarding
7.2Comfort
8.1Crew
7.0Entertainment
6.7Food
Airline reviews

Awful customer service. What you are told 100% depends on who you talk to.

2.0 MediocreDeirdre, Aug 2026
Read more Aer Lingus reviews

Awful customer service. What you are told 100% depends on who you talk to.

The embarkation at Dublin was a kin to a Ryanair approach, in other words a circuitous and cheep access

I love flying with them, the long-haul was fantastic. The short flight from Dublin --> Switzerland was horrible though. Most narrow seats I ever had, first and only time in my life I couldn't even close the seatbelt in seat 1A which was very embarrassing so I had to sit in the middle, because that seatbeld was 20cm longer. No idea why seat 1A would have a much shorter belt, it's just ridicilous. Also I hate the fixed seats, way too narrow.

Food was mediocre, but as expected in economy class on an airline. Wrap was ice cold , my son’s served by a steward on the next aisle was warm . As expected, but at least heat the food up a bit. No frills, but it’s economy. Excellent free WiFi was a bonus

Flight crew was superb. Meal was one of the meals at altitude I’ve had

Couldn’t check In online, message was couldn’t check in until Sunday morning though plane left Saturday night. Checked in okay at airport but caused slot if stress.

Excellent flight and crew. Boarding at Dublin Airport was a very difficult trying to find the right gate.

Delightful flight, ahead of time with a super crew, thanks

I had a great experience. I wasn’t sure what to expect but the crew helped me check my bags and made sure I got in the correct line to board. It was a bit of a walk to my gate so arrive early. I would recommend securing a flight that includes checking in your bag if you remotely think your baggage is over 10kg/22lbs. Be safe and upgrade unless you are carrying a backpack or weekend type baggage.

The only problem was there are games on the entertaiment system. The guy behind me played poker the entire time and poking the back of my seat. I hope they remove these.

They blocked me from checking in online and they charged me lots of money

Everything was good with Tap Air Portugal. It was Logan Airport that was a problem. The fuel system was down and delayed my 10:40 boarding. I wasn't able to board my flight until 2:00 am...after that my flights were great.

Not have my bag forced to be checked when I had a carry on included on my ticket. Staff was very rude to me for asking why they were doing this. I was told there was no more room for carry ons but there was plenty of space in the overhead compartments

Poor. Our flight was delayed and they told me I would be fine to make my connection in Lisbon, I missed it. Then they told me my bag would be automatically loaded onto my new flight to rome. It wasn’t. It’s been 4 days and I still don’t have it.

The seats were not designed to comfortably see people in coach for more than 10 minutes

Checked bG chstgr was extremely high. Over $120. It was s bsit and switch knowing an international passenger would have t9 check a bag.

On time, politeness, food okay but entertneiment mediocre with only old movie and the so called new we’re 2 or 3…

Everything went very well. I would like to acknowledge the politeness and professionalism of the staff—they are superb. No complaints.

No legroom, have to pay for everything including water?!? Water is more expensive than beer?

We liked the crew. They were competent, professional and friendly. The only big negative was our departure was delayed several times and the airport staff did not communicate what the problems were and what we should expect.

Everything you need to know for your flight to Algarve

Information on your arrival and departure airports