$256 Find Cheap Flights from Seattle to Algarve

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Algarve departing on 4/15. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Algarve

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Algarve, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Algarve, as well as popular online travel agencies
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Flight Deals

Book Cheap Seattle 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 Seattle 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 Seattle to Algarve

Tue, Apr 21 - Mon, Apr 27
British Airways Logo
8:20 pm - 7:10 pm
SEA
-
FAO
14h 50m
1 stop
British Airways Logo
1:10 pm - 11:35 am
FAO
-
SEA
30h 25m
1 stop
$594British Airways
Tue, Apr 21 - Mon, Apr 27
British Airways Logo
8:20 pm - 2:25 pm
SEA
-
FAO
34h 05m
1 stop
British Airways Logo
1:10 pm - 11:35 am
FAO
-
SEA
30h 25m
1 stop
$604British Airways
Mon, Apr 27 - Thu, May 7
British Airways Logo
11:16 am - 2:45 pm
SEA
-
FAO
19h 29m
2 stops
British Airways Logo
4:50 pm - 11:35 am
FAO
-
SEA
26h 45m
1 stop
$615British Airways
Tue, Apr 21 - Tue, Apr 28
British Airways Logo
8:20 pm - 7:10 pm
SEA
-
FAO
14h 50m
1 stop
British Airways Logo
11:30 am - 6:25 pm
FAO
-
SEA
14h 55m
1 stop
$624British Airways
Sat, Apr 25 - Sat, May 9
British Airways Logo
8:20 pm - 6:20 pm
SEA
-
FAO
14h 00m
1 stop
British Airways Logo
3:50 pm - 11:35 am
FAO
-
SEA
27h 45m
1 stop
$625British Airways
Tue, Mar 24 - Tue, Mar 31
British Airways Logo
7:50 pm - 9:55 am
SEA
-
FAO
31h 05m
1 stop
British Airways Logo
3:40 pm - 11:35 am
FAO
-
SEA
27h 55m
1 stop
$628British Airways
Wed, Apr 22 - Wed, May 6
British Airways Logo
8:20 pm - 7:05 pm
SEA
-
FAO
14h 45m
1 stop
British Airways Logo
8:00 pm - 11:35 am
FAO
-
SEA
23h 35m
1 stop
$630British Airways
Tue, Apr 21 - Tue, Apr 28
Multiple Airlines Logo
3:17 pm - 7:10 pm
SEA
-
FAO
19h 53m
2 stops
Multiple Airlines Logo
11:30 am - 6:25 pm
FAO
-
SEA
14h 55m
1 stop
$634Multiple Airlines
Sat, Apr 25 - Sat, May 9
British Airways Logo
1:19 pm - 4:55 pm
SEA
-
FAO
19h 36m
2 stops
British Airways Logo
3:50 pm - 11:35 am
FAO
-
SEA
27h 45m
1 stop
$635British Airways
Tue, Apr 21 - Mon, Apr 27
British Airways Logo
1:19 pm - 7:10 pm
SEA
-
FAO
21h 51m
2 stops
British Airways Logo
1:10 pm - 11:35 am
FAO
-
SEA
30h 25m
1 stop
$638British Airways
Booking Insights

KAYAK's insights & trends for Seattle to Algarve flights

Get data-powered insights and trends into flights from Seattle 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 Seattle 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 $439, prices are generally cheapest when you fly direct.

Good to know

Cheapest flight$256
Flight from Seattle to Faro

FAQs - booking Algarve flights

  • How does KAYAK find such low prices on flights from Seattle 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 Seattle to Algarve.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Seattle 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 Seattle 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 Seattle 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 Seattle 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 Seattle 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 3 airlines serving from Seattle to Algarve

 
See real verified KAYAK customer reviews for airlines flying from Seattle 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 Seattle 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.
7.7
KLMOverall score based on 1461 reviews
7.1Entertainment
7.3Food
8.4Crew
7.6Comfort
7.8Boarding
Airline reviews

Empty seats next to me - wish it had been for a longer flight!!

8.0 ExcellentAnonymous, Feb 2026
AMS - NCL
Read more KLM reviews

Empty seats next to me - wish it had been for a longer flight!!

Flight was on time, staff are friendly and helpful onboard.

Terrible last row seats many seats available but no offer to move to better seat

They forgot to serve food and the crew was very unfriendly. Never experienced such a bad KLM flight. Usually fly from Toronto. New York was different.

Couldn’t get boarding pass in SLC even with help from a redcoat, so had to find a desk in AMS to get boarding pass. Technical problems so not sure why. Very inconvenient. The KLM app is not as user friendly as most apps. Also had to wait almost an hour on the tarmac for a fuel truck, which caused us to miss a connecting bus in LUX.

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

First of all we couldn’t check in online, then we learn at the airport we were on stand by for KLM’s mistake of overbooking. The seats were not comfy at all. Our luggage got lost.

KLM remains a quality flag carrier airline which maintains its standards whilst all their competitors are lowering theirs.

My flight was delayed by 6 hours then I missed BOTH of my connecting flights, I then had to stay in the AIRPORT at JFK because soooooo many people also suffered from missing flights and there was no hotels available. I would like to be compensated for this experience! I had to stay in the airport for over 16 hours!

The service was great. However the lounge only gets passing grade

Punctual, smooth flight. Crew excellent and cabin very clean. Paid for WiFi but once you close out you cannot get back in even if you paid for entire flight.

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

Canceled my flight couple hours before takeoff. They could not find a decent re-routing and refused to pay for when i subjected alternative with Lufthansa.

Seats a little to soft on the SFO DUB flight

Well, I think we left close to on time. Crew was “eh”.

Flight takeoff was delayed an hour, but arrival time was not updated at the same time as departure time, so those picking me up at the other end were not alerted to the change in my arrival.

Seats are terribly cramped. I’m only 5’2” and my knees were practically in my face. No room to put a normal size bag under the seat and when the person in front of you reclined their seat your tray table was in your lap. This is the airline’s way of cramming more seats into the plane to make more money. I’ll think twice about taking Aer Lingus again since there are a few other options from Boston to the Emerald Isle.

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.

It was poor overall. They cancelled our flight and changed it without notifying us. So we incurred extra costs by having to book a hotel for our layover. They say it's Kayak/Underpricer's responsibility to reimburse us. But Kayak/Underpricer have said it's Aer Lingus' responsibility because they are the ones with our 'booking information.' I find this situation confusing and unacceptable.

We left 2 1/2 hours late. It wasn't the airlines fault but they did nothing to help the situation. Even water had a price tag. The next flight was better.

Good service, food and comfort in World Traveller Plus. Entertainment was poor - no wifi on the way out and barely working on the way back. Not a great choice of entertainment on the seat back tv.

Late! Late and late! More than 1hr 30mn. This sucks when it is the last of a 4 flight journey. I missed my dinner! Which is not nice on Valentine’s Day!!! But better than the gate next to us, the poor Chinese people were rebooked to the next day flight. AA had to call security as it became very heated with the passengers! It was a mess at DFW that afternoon/evening. I wish they had some food for the people who travel as part of international journey. Indigo does it in India and it is fantastic.

They had us seating down for one hour just waiting on the plane

Flying with BA is always a good experience—even in economy class. It is better if in business and first class. Timely, breeze through security and timely connections

We waited at BOS at the gate for an hour and couldn’t get a drink or anything. Once in the air the service, food and ride was excellent.

My enetertainmnet screen was broken. Lost my bags. Almost missed my flight do to connection issues with (despite a request) ZERO help from crew. Food was edible. Potatoes pretty good even

Our Jackson, Mississippi to Dallas Fort Worth flight was delayed on 1/19/26.. This was changed to Jackson to Charlotte in the last minute because of this delay. This started some kind of disconnect between American Airlines and British Airways bookings. We could not go past the passport control in London Heathrow. I had to go to the counter and waited for more than 30 minutes to get a new boarding pass. Problems did not end there. Somehow our entire return flight was canceled by someone. I had to make several phone calls over several days to fix the problem – this was not easy from India. Looks like there was some kind of disconnect between two airlines or some agent did not do it right. I’m anxious to know what went wrong.

The issue was not with BA it was with the link yoiu sent fopr booking the flight

Loved the boarding option from Business class lounge, experience on flight was excellent, plenty of good food choices

Getting the boarding passes between the BA and AA apps was very clunky.

Everything you need to know for your flight to Algarve

Information on your arrival and departure airports