$338 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 10/3. 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

Mon, Sep 7 - Wed, Sep 23
Multiple Airlines Logo
7:10 pm - 11:30 pm
SEA
-
FAO
20h 20m
1 stop
Multiple Airlines Logo
6:25 am - 12:07 pm
FAO
-
SEA
37h 42m
2 stops
$841Multiple Airlines
Mon, Sep 7 - Sun, Sep 20
Multiple Airlines Logo
7:10 pm - 11:30 pm
SEA
-
FAO
20h 20m
1 stop
Multiple Airlines Logo
6:45 pm - 4:00 pm
FAO
-
SEA
29h 15m
2 stops
$916Multiple Airlines
Tue, Sep 8 - Sun, Sep 20
Multiple Airlines Logo
7:10 pm - 11:30 pm
SEA
-
FAO
20h 20m
1 stop
Multiple Airlines Logo
6:45 pm - 4:00 pm
FAO
-
SEA
29h 15m
2 stops
$943Multiple Airlines
Tue, Aug 25 - Wed, Sep 9
Multiple Airlines Logo
1:30 pm - 5:40 pm
SEA
-
FAO
20h 10m
1 stop
Multiple Airlines Logo
8:20 pm - 4:35 pm
FAO
-
SEA
28h 15m
1 stop
$967Multiple Airlines
Mon, Jun 8 - Tue, Jun 16
Multiple Airlines Logo
10:30 am - 7:55 pm
SEA
-
FAO
25h 25m
3 stops
Multiple Airlines Logo
6:20 am - 9:00 pm
FAO
-
SEA
46h 40m
3 stops
$970Multiple Airlines
Sun, Sep 13 - Wed, Sep 23
Multiple Airlines Logo
7:10 pm - 7:55 pm
SEA
-
FAO
16h 45m
1 stop
Multiple Airlines Logo
6:45 am - 8:40 pm
FAO
-
SEA
21h 55m
2 stops
$971Multiple Airlines
Wed, Sep 9 - Wed, Sep 23
KLM Logo
1:50 pm - 7:30 pm
SEA
-
FAO
21h 40m
1 stop
KLM Logo
8:20 pm - 4:35 pm
FAO
-
SEA
28h 15m
1 stop
$972KLM
Sun, Aug 23 - Mon, Aug 31
Multiple Airlines Logo
7:10 pm - 7:55 pm
SEA
-
FAO
16h 45m
1 stop
Multiple Airlines Logo
8:20 pm - 9:40 am
FAO
-
SEA
45h 20m
2 stops
$973Multiple Airlines
Tue, Aug 25 - Wed, Sep 9
Multiple Airlines Logo
7:10 pm - 11:30 pm
SEA
-
FAO
20h 20m
1 stop
Multiple Airlines Logo
6:45 am - 8:40 pm
FAO
-
SEA
21h 55m
2 stops
$975Multiple Airlines
Tue, Aug 25 - Wed, Sep 9
SWISS Logo
10:47 am - 6:20 pm
SEA
-
FAO
23h 33m
2 stops
SWISS Logo
7:05 pm - 6:32 pm
FAO
-
SEA
31h 27m
2 stops
$978SWISS
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 $495, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Seattle to Algarve?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle 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 Seattle to Algarve is March, when tickets cost $0 (return) on average. On the other hand, the most expensive months are July and June, when the average cost of round-trip tickets is $1,203 and $1,180 respectively.

Good to know

Low seasonFebruary
Cheapest flight$339
Best time to beat the crowds with an average 55% drop in price.
Most popular time to fly with an average 3% increase in price.
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.
7.8
KLMOverall score based on 1512 reviews
8.4Crew
7.1Entertainment
7.3Food
7.8Boarding
7.7Comfort
Airline reviews

As per usual when you Hit the UK it's a slow process through customs Not as efficient at Thailand for sure

10.0 ExcellentDiane, Apr 2026
AMS - HUY
Read more KLM reviews

As per usual when you Hit the UK it's a slow process through customs Not as efficient at Thailand for sure

It was really nice experience by flying this klm flight.I personally recommend everyone to please try this klm flight

It was really nice journey i personally recommend klm flight

The crew were unprofessional with a racist element. I was physically abused as well from one of the crew members

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.

OK overall. Flight was delayed Crew on flight was good

On time, only a little turbulence, very competent and caring attendants. Clear information.

Late late late. Delayed and arrived an hour late for a 1 hour 45 minute connection. Every time. Poor record for this company. I try to fly any other carrier first.

This was the smoothest flight I've ever taken with any airline, including Aer Lingus. Typically, there are moments when I feel afraid, but from take off (miraculously seamless!) to cruise, to landing this was a perfect flight. Thank you!

Poor. Plane left EWR late hence missed connecting flight in Dublin. No pro active info from flight staff on connection, only when probed a couple of lies on where we would dock, and on lilelyhood catching connecting flight. Lies as they will have known our EWR-DUB would be parked furthest away from the transit spit - lying it would be next to the AMS flight.

The crew was friendly. The plane was comfortable. In-flight wifi didn't work well at all. The ride was quite turbulent but understandable given the weather.

I flew economy class. Seats were very good and the crew was excellent

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.

Boarding was orderly, pilot and flight attendants were nice, entertainment options were good, and low sodium meals were quite tasty.

The whole experience was excellent, O can say out from Miami the best airline to travel with for any European destination. Since the ground staff to the inflight crew attention was great, service on board 10 of 10. Finally the 380 is very confortable and nice to travel.

All crew except 1 were excellent. When I asked assistance with business class seat conversion to a bed (not being familiar as never used before but have numerous times with other airlines) crew member helped very reluctantly. I should have told her that business class seat conversion is totally different in each airline such as Delta, New Zealand Air and United. Sorry it was my 1st time with America Airlines. Now I know, I won't bother asking assistance in future.

1st class seats NOT REALLY 1st class or business class but like premier economy. Should be listed as such or named something else. I have flown 1st class with other airlines and they are nothing like it at all.

The seats in Premier Economy were very comfortable. The food was better than average. The way British Airways handled our seating was atrocious.

Worst airline in the world. They downgraded me from business class to economy with no compensation.

Flight delayed, connection was not at gate listed and so missed, staff were rude at Heathrow, phone tree stupid and difficult, took me 21 actual hours to reach my destination. Almost lost my hotel reservation after walking in a strange city alone after midnight because they would not put me up in a hotel at sfo or heathrow. I will never fly BA again and will tell all people and Instagram followers never to fly BA.

Overall ok. Best part has always been the sundae dessert.

Check-in in SAN was long. ORD was good. Flight delayed On board crew was ok. No warmth or personality. LHrR barely made connection

Even if you wait for connecting passengers you should not be an hour late departing waiting their luggage. Your passengers may have connections in the other end and you harm them.

Everything you need to know for your flight to Algarve

Information on your arrival and departure airports