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Cheap flights from Seattle (SEA) to Portugal from $337

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 9/30. 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.
SEA — LIS
May 19 — May 261
From?
To?
Sun 5/19
Sun 5/26
1 adult, Economy
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How far in advance should I book a flight from Seattle to Portugal?

Users have found that booking a flight from Seattle to Portugal at least 38 days early can save you up to 46% on average compared to booking a flight this week. If booking 38 days before your flight isn’t an option for you, users have found flights from Seattle to Portugal for as little as $729 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $997 for flights departing within the next 3 days.

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

The best pricing can be found in the month of February. Prices to Portugal from Seattle average $1,036. You can even find prices in February for less than $1,036, as users have found deals to Portugal from as low as $455. The month of June appears to be one of the more expensive times to travel to Portugal from Seattle. Flying in the targeted month can save you up to 46%.

When is the cheapest time to fly from Seattle to Portugal (SEA - PT)?

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

Cheap American Airlines flights from Seattle to Portugal

Explore cheap flight options specifically provided by American Airlines for the route between Seattle and Portugal. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,632,958 searches. Data last updated May 14, 2024.
Peruse some of the lowest-priced American Airlines flights we've found from Seattle to Portugal. It's recommended that users confirm their flight details before booking.
Wed 11/66:45 pmSEA - LIS
1 stop15h 00mAmerican Airlines
Wed 11/206:35 amLIS - SEA
2 stops22h 15mAmerican Airlines
Deal found 5/14$658
Thu 11/71:39 pmSEA - LIS
2 stops20h 16mAmerican Airlines
Fri 11/156:35 amLIS - SEA
2 stops22h 40mAmerican Airlines
Deal found 5/13$714
Tue 11/57:37 amSEA - LIS
2 stops17h 38mAmerican Airlines
Sat 11/1610:05 amLIS - SEA
2 stops18h 45mAmerican Airlines
Deal found 5/14$719
Sun 11/37:34 amSEA - LIS
2 stops17h 21mAmerican Airlines
Sun 11/179:00 amLIS - SEA
2 stops19h 55mAmerican Airlines
Deal found 5/14$720
Wed 5/221:15 amSEA - OPO
2 stops46h 20mAmerican Airlines
Thu 5/3012:20 pmOPO - SEA
2 stops19h 39mAmerican Airlines
Deal found 5/14$1,965

Cheap Turkish Airlines flights from Seattle to Portugal

Explore cheap flight options specifically provided by Turkish Airlines for the route between Seattle and Portugal. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,632,958 searches. Data last updated May 14, 2024.
Some of the lowest-priced Turkish Airlines flights we've found at this time heading from Seattle to Portugal. Check back soon if you're not seeing flights that suit your needs.
Tue 9/176:40 pmSEA - LIS
1 stop31h 15mTurkish Airlines
Mon 9/304:25 pmLIS - SEA
1 stop26h 05mTurkish Airlines
Deal found 5/13$857
Thu 8/2912:15 pmSEA - LIS
1 stop19h 10mTurkish Airlines
Tue 9/174:30 pmLIS - SEA
1 stop32h 15mTurkish Airlines
Deal found 5/13$886

Cheap Seattle to Portugal flights in May & June 2024

Find cheap flight options from Seattle to Portugal specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,632,958 searches. Prices were last updated on May 14, 2024.
The lowest fares we've come across on flights traveling from Seattle to Portugal in May and June 2024. For more flight deals, be sure to check back very soon.
Mon 5/2711:10 pmSEA - LIS
2 stops23h 20mMultiple Airlines
Tue 6/118:15 amLIS - SEA
2 stops34h 28mMultiple Airlines
Deal found 5/13$906
Tue 6/1110:40 amSEA - LIS
3 stops35h 50mMultiple Airlines
Tue 6/188:15 amLIS - SEA
2 stops34h 36mMultiple Airlines
Deal found 5/13$910
Mon 5/273:10 pmSEA - LIS
3 stops31h 20mMultiple Airlines
Tue 6/1111:35 amLIS - SEA
2 stops33h 21mMultiple Airlines
Deal found 5/13$911
Mon 5/2711:10 pmSEA - LIS
2 stops23h 20mMultiple Airlines
Tue 6/1111:35 amLIS - SEA
1 stop18h 23mMultiple Airlines
Deal found 5/13$913
Thu 6/610:40 amSEA - LIS
3 stops35h 50mMultiple Airlines
Wed 6/128:15 amLIS - SEA
2 stops34h 28mMultiple Airlines
Deal found 5/13$923
Sun 5/267:00 amSEA - LIS
2 stops31h 15mMultiple Airlines
Thu 6/66:00 amLIS - SEA
3 stops34h 32mMultiple Airlines
Deal found 5/14$977
Tue 6/111:10 pmSEA - LIS
3 stops33h 20mMultiple Airlines
Tue 6/188:55 amLIS - SEA
3 stops43h 26mMultiple Airlines
Deal found 5/13$982
Sun 5/263:10 pmSEA - LIS
3 stops31h 20mMultiple Airlines
Thu 6/66:00 amLIS - SEA
3 stops34h 32mMultiple Airlines
Deal found 5/14$983
Mon 6/37:40 amSEA - LIS
1 stop18h 50mMultiple Airlines
Thu 6/138:35 pmLIS - SEA
3 stops43h 22mMultiple Airlines
Deal found 5/13$984

Seattle to Portugal 2024 flight deals

Discover exclusive flight deals for travel between Seattle and Portugal in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,632,958 searches. Data last updated May 14, 2024.
The lowest fares we've come across on flights traveling from Seattle to Portugal in May and June 2024. For more flight deals, be sure to check back very soon.
Sat 11/27:05 pmSEA - OPO
2 stops33h 30mAir Canada
Tue 11/126:00 amOPO - SEA
2 stops23h 08mAir Canada
Deal found 5/13$663
Wed 10/309:35 amSEA - OPO
2 stops26h 05mMultiple Airlines
Wed 11/66:00 amOPO - SEA
2 stops23h 08mMultiple Airlines
Deal found 5/14$667
Mon 11/41:50 pmSEA - OPO
1 stop24h 35mLufthansa
Wed 11/206:00 amOPO - SEA
2 stops22h 10mLufthansa
Deal found 5/13$678
Wed 10/306:31 amSEA - OPO
2 stops34h 04mLufthansa
Wed 11/61:45 pmOPO - SEA
1 stop35h 20mLufthansa
Deal found 5/14$682
Mon 11/41:50 pmSEA - OPO
1 stop24h 35mLufthansa
Wed 11/204:35 pmOPO - SEA
1 stop27h 25mLufthansa
Deal found 5/13$684
Wed 10/301:40 pmSEA - OPO
1 stop14h 10mDelta
Wed 11/65:00 amOPO - SEA
2 stops26h 31mDelta
Deal found 5/13$685
Wed 10/303:35 pmSEA - OPO
1 stop23h 45mKLM
Wed 11/64:10 pmOPO - SEA
1 stop26h 05mKLM
Deal found 5/14$688
Sat 11/211:50 pmSEA - OPO
2 stops32h 55mUnited Airlines
Tue 11/1212:30 pmOPO - SEA
1 stop31h 30mUnited Airlines
Deal found 5/13$689
Wed 10/306:00 amSEA - OPO
2 stops21h 50mDelta
Wed 11/65:00 amOPO - SEA
2 stops26h 31mDelta
Deal found 5/13$690

Seattle to Portugal flights leaving soon

Find last-minute flight options from Seattle to Portugal for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,632,958 searches. Data last updated May 14, 2024.
Consider one of these great deals we found on last-minute flights from Seattle to Portugal. To prevent any unwanted surprises, users should verify their flight info before booking.
Sun 5/195:50 amSEA - LIS
2 stops21h 15mMultiple Airlines
Tue 5/287:25 amLIS - SEA
3 stops33h 20mMultiple Airlines
Deal found 5/13$1,029
Sun 5/1910:40 amSEA - LIS
2 stops16h 25mMultiple Airlines
Fri 5/249:20 pmLIS - SEA
3 stops29h 07mMultiple Airlines
Deal found 5/13$1,039
Mon 5/205:50 amSEA - LIS
3 stops20h 40mMultiple Airlines
Tue 5/288:55 amLIS - SEA
3 stops31h 50mMultiple Airlines
Deal found 5/13$1,041
Mon 5/207:40 amSEA - LIS
1 stop18h 50mMultiple Airlines
Tue 5/288:55 amLIS - SEA
3 stops31h 50mMultiple Airlines
Deal found 5/13$1,043
Mon 5/205:50 amSEA - LIS
3 stops20h 40mMultiple Airlines
Fri 5/249:20 pmLIS - SEA
3 stops29h 07mMultiple Airlines
Deal found 5/13$1,052
Mon 5/207:40 amSEA - LIS
1 stop18h 50mMultiple Airlines
Fri 5/249:20 pmLIS - SEA
3 stops29h 07mMultiple Airlines
Deal found 5/13$1,056
Tue 5/215:50 amSEA - LIS
3 stops34h 05mMultiple Airlines
Tue 5/288:55 amLIS - SEA
3 stops31h 50mMultiple Airlines
Deal found 5/13$1,070
Tue 5/215:50 amSEA - LIS
3 stops31h 40mMultiple Airlines
Sat 5/2510:55 amLIS - SEA
3 stops37h 00mMultiple Airlines
Deal found 5/12$1,079
Tue 5/215:50 amSEA - LIS
3 stops34h 05mMultiple Airlines
Fri 5/249:20 pmLIS - SEA
3 stops29h 07mMultiple Airlines
Deal found 5/13$1,084

One-way flights to Portugal from Seattle

Search for one-way flight options from Seattle to Portugal. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,632,958 searches. Data last updated May 14, 2024.
Users traveling one-way from Seattle to Portugal can select one of these great deals. Users needing a return flight from Seattle to Portugal should utilize the search form above.
Mon 9/303:50 pmSEA - LIS
2 stops20h 15mMultiple Airlines
Deal found 5/13$337
Wed 10/23:50 pmSEA - LIS
2 stops23h 00mMultiple Airlines
Deal found 5/12$380
Mon 9/163:50 pmSEA - OPO
3 stops22h 40mMultiple Airlines
Deal found 5/13$393
Tue 9/173:50 pmSEA - OPO
3 stops19h 00mMultiple Airlines
Deal found 5/13$396
Wed 10/23:50 pmSEA - LIS
2 stops22h 45mMultiple Airlines
Deal found 5/13$396
Mon 9/233:50 pmSEA - LIS
2 stops19h 20mMultiple Airlines
Deal found 5/13$400
Wed 9/253:50 pmSEA - LIS
2 stops19h 30mMultiple Airlines
Deal found 5/14$404
Mon 9/163:50 pmSEA - OPO
2 stops20h 25mMultiple Airlines
Deal found 5/13$407
Mon 9/163:50 pmSEA - OPO
2 stops20h 25mMultiple Airlines
Deal found 5/13$413

Find flights from Seattle to Portugal within your budget

Customize your flight search to find flights from Seattle to Portugal 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 2,632,958 searches. Data last updated May 14, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$651 - $734

Route

Depart

Return

Price

Seattle/Tacoma IntlLisbon Humberto Delgado

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Tue 11/5

1 stop15h 35m

Lisbon Humberto Delgado

Thu 11/14

1 stop18h 14m

$651

Seattle/Tacoma IntlLisbon Humberto Delgado

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Tue 11/5

1 stop25h 19m

Lisbon Humberto Delgado

Wed 11/13

2 stops35h 31m

$653

Seattle/Tacoma IntlLisbon Humberto Delgado

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Wed 11/6

1 stop15h 00m

Lisbon Humberto Delgado

Wed 11/20

2 stops22h 15m

$658

Seattle/Tacoma IntlLisbon Humberto Delgado

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Mon 11/4

1 stop15h 55m

Lisbon Humberto Delgado

Tue 11/19

1 stop18h 23m

$660

Seattle/Tacoma IntlLisbon Humberto Delgado

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Wed 11/6

2 stops17h 39m

Lisbon Humberto Delgado

Tue 11/19

1 stop18h 55m

$664

Seattle/Tacoma IntlLisbon Humberto Delgado

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Sun 11/3

1 stop17h 40m

Lisbon Humberto Delgado

Fri 11/15

1 stop18h 41m

$666

Seattle/Tacoma IntlPorto

SEA - OPO

SEAOPO

Seattle/Tacoma Intl

Mon 11/4

1 stop24h 35m

Porto

Wed 11/20

2 stops22h 10m

$678

Seattle/Tacoma IntlPorto

SEA - OPO

SEAOPO

Seattle/Tacoma Intl

Wed 10/30

1 stop23h 45m

Porto

Wed 11/6

1 stop26h 05m

$688

Seattle/Tacoma IntlLisbon Humberto Delgado

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Thu 11/7

2 stops19h 30m

Lisbon Humberto Delgado

Wed 11/13

2 stops39h 04m

$734

Flights are sorted by cheapest first

Deals found on 5/14

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Portugal

Get insights into the airlines that provide service to Portugal. 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 Portugal. Reviews last updated May 14, 2024.
Read through reviews of airlines operating flights from Seattle to Portugal, such as American Airlines, Turkish Airlines and Delta. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
10,706 reviews
Check prices

Crew

8.6

Overall

8.0

Food

7.4

Boarding

8.2

Entertainment

8.0

Comfort

7.9

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Delta
8.0
Very good
10,706 reviews
Delta
8.0
Very good
10,706 reviews
Check prices

Crew

8.6

Overall

8.0

Food

7.4

Boarding

8.2

Entertainment

8.0

Comfort

7.9

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

KLM
7.9
Good
1,569 reviews
Delta
8.0
Very good
10,706 reviews
Check prices

Crew

8.6

Overall

8.0

Food

7.4

Boarding

8.2

Entertainment

8.0

Comfort

7.9

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

SWISS
7.8
Good
1,993 reviews
Delta
8.0
Very good
10,706 reviews
Check prices

Crew

8.6

Overall

8.0

Food

7.4

Boarding

8.2

Entertainment

8.0

Comfort

7.9

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Air France
7.6
Good
1,769 reviews
Delta
8.0
Very good
10,706 reviews
Check prices

Crew

8.6

Overall

8.0

Food

7.4

Boarding

8.2

Entertainment

8.0

Comfort

7.9

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

WestJet
7.5
Good
2,925 reviews
Delta
8.0
Very good
10,706 reviews
Check prices

Crew

8.6

Overall

8.0

Food

7.4

Boarding

8.2

Entertainment

8.0

Comfort

7.9

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Portugal. 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 Portugal?

    Most people fly from Seattle/Tacoma Intl (SEA) if they book a flight from Seattle to Portugal. Seattle/Tacoma Intl is conveniently located just 11.4 mi from Seattle’s city center.

  • Can I find flights from Seattle to Portugal for under $700 on Cheapflights?

    Yes, there are multiple flights from Seattle to Portugal for under $700. The cheapest flight booked recently is on Air Canada for just $651, but on average you can expect to pay $665.

  • Are there last-minute flights available from Seattle to Portugal for under $1,100?

    There are currently 20+ open flights from Seattle to Portugal within the next 7 days for less than $1,100.

  • What are the most popular routes from Seattle to Portugal?

    When deciding which route to take from Seattle to Portugal consider Seattle/Tacoma Intl - Lisbon Humberto Delgado, Seattle/Tacoma Intl - Porto or Seattle/Tacoma Intl - Ponta Delgada Nordela as they are the most popular.

  • What are the most popular airlines that fly from Seattle to Portugal?

    American Airlines, Air Canada and Air France are the most popular airlines when flying from Seattle to Portugal.

  • What does SEA to LIS mean?

    SEA stands for Seattle/Tacoma Intl Airport, while LIS stands for Lisbon Humberto Delgado Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry. Porto Airport (OPO), Faro Airport (FAO), Funchal Madeira Airport (FNC), Ponta Delgada Nordela Airport (PDL), Lajes Airport (TER) are some additional IATA codes for airports related to your trip.

  • Can I find deals for flights from Seattle to Portugal that include extra baggage allowance?

    The amount of baggage you can bring on your Seattle to Portugal flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Seattle to Portugal with specific airlines?

    Yes, Cheapflights allows you to browse and filter Seattle to Portugal flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle to Portugal by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Seattle to Portugal that allow pets onboard?

    Many airlines flying from Seattle to Portugal offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Seattle to Portugal?

    Yes, you can often find last-minute deals on Seattle to Portugal flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Seattle to Portugal flight deals updated?

    The Seattle to Portugal flight deals you see on this page were last updated on 5/14.

See more FAQs

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Top 10 airlines flying from Seattle to Portugal

Discover the top 10 airlines that operate flights from Seattle to Portugal. 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 2,632,958 searches. Data last updated May 14, 2024.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$456Average$955FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
LufthansaCheapest$543Average$1,067FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
American AirlinesCheapest$544Average$840FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
KLMCheapest$549Average$988FlexibilityNo cancel feeOn-time75%
Search KLM flights
British AirwaysCheapest$581Average$1,076FlexibilityNo cancel feeOn-time70%
Search British Airways flights
United AirlinesCheapest$600Average$1,204FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapest$616Average$1,008FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
FinnairCheapest$645Average$1,058FlexibilityNo cancel feeOn-time76%
Search Finnair flights
DeltaCheapest$646Average$1,070FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air FranceCheapest$654Average$1,325FlexibilityNo cancel feeOn-time77%
Search Air France flights
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Search flights from Seattle to Portugal by cabin class

Find flights from Seattle to Portugal, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Fly with Cheapflights

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How does Cheapflights help users find flights from Seattle to Portugal?

When you search for this flight from Seattle to Portugal, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Seattle to Portugal?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Portugal from Seattle.

Can Cheapflights find flights from Seattle to Portugal with no change fees?

Need flexible booking options for your flight to Portugal from Seattle? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Seattle to Portugal become cheaper?

Not ready to book yet? You can track prices for flights from Seattle to Portugal on Cheapflights with our Price Alert feature and get notified when better prices are available.

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