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Algarve

$413+ Cheap flights from Seattle (SEA) 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 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — FAO
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap flight deals from Seattle to Algarve

Keep the following information in mind while searching for Seattle to Algarve flight deals. Data was last updated August 14, 2025.

Round-trip from

$617
(Kiwi.com)

One-way from

$413
(Cheapflightsfares)

Popular in

December

Cheapest in

February

Average price

$1,106
From Seattle/Tacoma Intl to Algarve
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One-way flight from Seattle/Tacoma Intl to Algarve
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Highest demand for flights based on searches. 18% potential increase in price ($272 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($89 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Seattle to Algarve

Cheapest flights from Seattle to Algarve
Explore the most affordable flight options available from Seattle to Algarve. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This Kiwi.com deal was found by Cheapflights users on 8/14. 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.
Thu 9/117:35 pmSEA - FAO
1 stop17h 50mMultiple Airlines
Thu 9/257:25 amFAO - SEA
1 stop18h 25mMultiple Airlines
Deal found 8/14$617
This Mytrip deal was found by Cheapflights users on 8/14. 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.
Fri 10/37:00 pmSEA - FAO
2 stops17h 50mMultiple Airlines
Sun 10/126:20 amFAO - SEA
2 stops22h 20mMultiple Airlines
Deal found 8/14$661
This British Airways deal was found by Cheapflights users on 8/14. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/41:25 pmSEA - FAO
1 stop20h 05mBritish Airways
Tue 11/116:50 pmFAO - SEA
1 stop30h 05mBritish Airways
Deal found 8/14$695
This FlightHub deal was found by Cheapflights users on 8/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/14:20 pmSEA - FAO
2 stops57h 10mScandinavian Airlines
Sat 10/186:45 pmFAO - SEA
1 stop27h 15mScandinavian Airlines
Deal found 8/14$701
This Mytrip deal was found by Cheapflights users on 8/14. 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.
Tue 11/48:15 amSEA - FAO
3 stops31h 35mMultiple Airlines
Tue 11/116:05 amFAO - SEA
3 stops21h 11mMultiple Airlines
Deal found 8/14$826
This Mytrip deal was found by Cheapflights users on 8/14. 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.
Sat 10/43:45 pmSEA - FAO
2 stops17h 25mMultiple Airlines
Sun 10/126:10 pmFAO - SEA
3 stops34h 30mMultiple Airlines
Deal found 8/14$835
This Cheapflightsfares deal was found by Cheapflights users on 8/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/76:05 amSEA - FAO
2 stops20h 30mAer Lingus
Fri 9/1911:40 amFAO - SEA
2 stops29h 41mAer Lingus
Deal found 8/14$898

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Algarve 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 August 14, 2025.
Use the filters below to find and compare flights from Seattle to Algarve that are best for you.

Fly from

Seattle

Fly to

Algarve

Route

Depart

Return

Price

SeattleFaro

SEA - FAO

SEAFAO

Seattle/Tacoma Intl

Thu 9/11

7:35 pm-9:25 pm

1 stop17h 50m

Faro

Thu 9/25

7:25 am-5:50 pm

1 stop18h 25m

$617

SeattleFaro

SEA - FAO

SEAFAO

Seattle/Tacoma Intl

Fri 10/3

7:00 pm-8:50 pm

2 stops17h 50m

Faro

Sun 10/12

6:20 am-8:40 pm

2 stops22h 20m

$661

SeattleFaro

SEA - FAO

SEAFAO

Seattle/Tacoma Intl

Tue 11/4

1:25 pm-5:30 pm

1 stop20h 05m

Faro

Tue 11/11

6:50 pm-4:55 pm

1 stop30h 05m

$695

SeattleFaro

SEA - FAO

SEAFAO

Seattle/Tacoma Intl

Wed 10/1

4:20 pm-9:30 am

2 stops57h 10m

Faro

Sat 10/18

6:45 pm-2:00 pm

1 stop27h 15m

$701

SeattleFaro

SEA - FAO

SEAFAO

Seattle/Tacoma Intl

Tue 11/4

8:15 am-11:50 pm

3 stops31h 35m

Faro

Tue 11/11

6:05 am-7:16 pm

3 stops21h 11m

$826

SeattleFaro

SEA - FAO

SEAFAO

Seattle/Tacoma Intl

Sat 10/4

3:45 pm-5:10 pm

2 stops17h 25m

Faro

Sun 10/12

6:10 pm-8:40 pm

3 stops34h 30m

$835

SeattleFaro

SEA - FAO

SEAFAO

Seattle/Tacoma Intl

Sun 9/7

6:05 am-10:35 am

2 stops20h 30m

Faro

Fri 9/19

11:40 am-9:21 am

2 stops29h 41m

$898

SeattleFaro

SEA - FAO

SEAFAO

Seattle/Tacoma Intl

Wed 11/12

6:50 pm-5:45 pm

1 stop14h 55m

$413

SeattleFaro

SEA - FAO

SEAFAO

Seattle/Tacoma Intl

Wed 11/12

3:37 pm-5:45 pm

2 stops18h 08m

$420

SeattleFaro

SEA - FAO

SEAFAO

Seattle/Tacoma Intl

Wed 11/12

8:36 am-10:25 am

3 stops17h 49m

$715

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 15 results
1
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Best time to book a flight from Seattle to Algarve

Have a flexible travel schedule? Discover the best time to fly to Algarve from Seattle 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 Seattle to Algarve

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

Find hourly flight availability from Seattle to Algarve. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 14, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Algarve as you normally would.

Reviews of airlines servicing Algarve

Get insights into the airlines that provide service to Algarve. 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 Algarve. Reviews last updated August 14, 2025.
Read reviews from past customers who have flown KLM, Aer Lingus, and British Airways from Seattle to Algarve. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,381 reviews

Boarding

7.8

Overall

7.8

Entertainment

7.1

Comfort

7.7

Crew

8.4

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
KLM
7.8
Good
1,381 reviews
KLM
7.8
Good
1,381 reviews

Boarding

7.8

Overall

7.8

Entertainment

7.1

Comfort

7.7

Crew

8.4

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
Aer Lingus
7.1
Good
1,214 reviews
KLM
7.8
Good
1,381 reviews

Boarding

7.8

Overall

7.8

Entertainment

7.1

Comfort

7.7

Crew

8.4

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
British Airways
6.7
Okay
7,266 reviews
KLM
7.8
Good
1,381 reviews

Boarding

7.8

Overall

7.8

Entertainment

7.1

Comfort

7.7

Crew

8.4

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Algarve. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Seattle to Algarve?

    For a flight from Seattle to Algarve, you will be flying from Seattle/Tacoma Intl. Seattle/Tacoma Intl (SEA) is just 11.4 mi from the center of the city.

  • Can I find deals for flights from Seattle to Algarve that include hotel bookings?

    Yes. In addition to deals on Seattle to Algarve flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Algarve?

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

  • Can I find deals for business class flights from Seattle to Algarve?

    Yes. Cheapflights offers flight deals from Seattle 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 Seattle to Algarve?

    Currently, November is the cheapest month in which you can book a flight from Seattle to Algarve (average of $628). Flying from Seattle 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

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Top 3 airlines flying from Seattle to Algarve

Discover the top 3 airlines that operate flights from Seattle to Algarve. 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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$725Average$1,012FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$745Average$1,218FlexibilityNo cancel feeOn-time70%
KLMCheapest$754Average$1,018FlexibilityNo cancel feeOn-time75%

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