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Cheap flights from Portugal to Seattle (SEA) from $379

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 9/16. 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.
LIS — SEA
Jun 2 — Jun 91
From?
To?
Sun 6/2
Sun 6/9
1 adult, Economy
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How far in advance should I book a flight from Portugal to Seattle?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 42 days in advance, which can save you up to 35% on flights from Portugal to Seattle compared to booking the week you need them. Waiting 42 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $809. For sooner than that we have options available in the next 3 days from $974.

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

Our data shows that December tends to be the cheapest month to fly to Seattle from Portugal. Users have commonly found prices around $908 for the month, but tickets can be as low as $731. Due to multiple factors, prepare for potentially higher prices in July.

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

When flying from Portugal to Seattle, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Cheap British Airways flights from Portugal to Seattle

Explore cheap flight options specifically provided by British Airways for the route between Portugal and Seattle. 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 2,740,132 searches. Data last updated May 28, 2024.
Find some of the cheapest British Airways flights traveling from Portugal to Seattle. Deals update often to give you more flight options matching your criteria
Fri 11/810:45 amLIS - SEA
1 stop14h 00mBritish Airways
Wed 11/131:39 pmSEA - LIS
2 stops20h 06mBritish Airways
Deal found 5/27$809
Mon 11/1111:05 amLIS - SEA
1 stop18h 38mBritish Airways
Mon 11/187:50 amSEA - LIS
2 stops20h 20mBritish Airways
Deal found 5/26$817
Mon 11/1111:05 amLIS - SEA
1 stop18h 38mBritish Airways
Mon 11/187:50 amSEA - LIS
2 stops20h 20mBritish Airways
Deal found 5/28$818
Mon 6/106:45 pmLIS - SEA
1 stop24h 50mBritish Airways
Mon 6/241:25 pmSEA - LIS
2 stops25h 50mBritish Airways
Deal found 5/28$843
Mon 6/105:10 pmLIS - SEA
2 stops34h 38mBritish Airways
Mon 6/241:25 pmSEA - LIS
2 stops25h 50mBritish Airways
Deal found 5/28$848
Mon 6/105:10 pmLIS - SEA
1 stop26h 25mBritish Airways
Mon 6/241:25 pmSEA - LIS
2 stops25h 50mBritish Airways
Deal found 5/27$967
Mon 6/106:45 pmLIS - SEA
2 stops33h 03mBritish Airways
Mon 6/241:25 pmSEA - LIS
2 stops25h 50mBritish Airways
Deal found 5/27$973
Sat 6/87:00 pmLIS - SEA
1 stop30h 45mBritish Airways
Sat 6/157:40 pmSEA - LIS
1 stop19h 35mBritish Airways
Deal found 5/27$974
Sat 6/87:00 pmLIS - SEA
1 stop24h 30mBritish Airways
Sat 6/157:40 pmSEA - LIS
1 stop19h 35mBritish Airways
Deal found 5/27$1,034

Cheap United Airlines flights from Portugal to Seattle

Explore cheap flight options specifically provided by United Airlines for the route between Portugal and Seattle. 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 2,740,132 searches. Data last updated May 28, 2024.
Some of the lowest-priced United Airlines flights we've found at this time heading from Portugal to Seattle. Check back soon if you're not seeing flights that suit your needs.
Fri 11/86:10 amLIS - SEA
1 stop15h 10mUnited Airlines
Wed 11/136:39 amSEA - LIS
3 stops19h 51mUnited Airlines
Deal found 5/27$814
Fri 11/86:10 amLIS - SEA
2 stops25h 00mUnited Airlines
Wed 11/136:39 amSEA - LIS
3 stops19h 51mUnited Airlines
Deal found 5/27$840
Mon 11/116:10 amLIS - SEA
2 stops25h 00mUnited Airlines
Mon 11/186:39 amSEA - LIS
3 stops19h 51mUnited Airlines
Deal found 5/28$842
Mon 6/1010:25 amLIS - SEA
1 stop32h 42mUnited Airlines
Mon 6/2412:45 pmSEA - LIS
1 stop13h 45mUnited Airlines
Deal found 5/28$902
Mon 6/105:05 amLIS - SEA
1 stop15h 20mUnited Airlines
Mon 6/2412:45 pmSEA - LIS
1 stop13h 45mUnited Airlines
Deal found 5/27$907
Mon 6/1010:25 amLIS - SEA
1 stop32h 42mUnited Airlines
Mon 6/2412:45 pmSEA - LIS
1 stop13h 45mUnited Airlines
Deal found 5/27$922
Mon 11/1112:20 pmLIS - SEA
2 stops18h 50mUnited Airlines
Mon 11/186:39 amSEA - LIS
3 stops19h 51mUnited Airlines
Deal found 5/26$946
Mon 6/39:00 amOPO - SEA
2 stops23h 59mUnited Airlines
Tue 6/1812:10 pmSEA - OPO
1 stop13h 35mUnited Airlines
Deal found 5/27$966
Thu 8/1510:25 amLIS - SEA
2 stops20h 20mUnited Airlines
Tue 8/278:53 amSEA - LIS
2 stops15h 27mUnited Airlines
Deal found 5/27$1,022

Cheap Portugal to Seattle flights in May & June 2024

Find cheap flight options from Portugal to Seattle specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,740,132 searches. Prices were last updated on May 28, 2024.
These are some of the best deals we've found on flights to Seattle in 2024 at this time. More deals are always being added, so be sure to check back regularly.
Mon 6/106:45 pmLIS - SEA
1 stop24h 50mBritish Airways
Mon 6/241:25 pmSEA - LIS
2 stops25h 50mBritish Airways
Deal found 5/28$843
Mon 6/105:10 pmLIS - SEA
2 stops34h 38mBritish Airways
Mon 6/241:25 pmSEA - LIS
2 stops25h 50mBritish Airways
Deal found 5/28$848
Mon 6/1010:25 amLIS - SEA
1 stop32h 42mUnited Airlines
Mon 6/2412:45 pmSEA - LIS
1 stop13h 45mUnited Airlines
Deal found 5/28$902
Mon 6/105:05 amLIS - SEA
1 stop15h 20mUnited Airlines
Mon 6/2412:45 pmSEA - LIS
1 stop13h 45mUnited Airlines
Deal found 5/27$907
Mon 6/1010:25 amLIS - SEA
1 stop32h 42mUnited Airlines
Mon 6/2412:45 pmSEA - LIS
1 stop13h 45mUnited Airlines
Deal found 5/27$922
Sat 6/88:25 amLIS - SEA
2 stops21h 21mAmerican Airlines
Sat 6/158:10 amSEA - LIS
2 stops16h 55mAmerican Airlines
Deal found 5/27$951
Sat 6/811:05 amLIS - SEA
1 stop19h 22mAmerican Airlines
Sat 6/157:30 amSEA - LIS
2 stops17h 35mAmerican Airlines
Deal found 5/27$952
Mon 6/39:00 amOPO - SEA
2 stops23h 59mUnited Airlines
Tue 6/1812:10 pmSEA - OPO
1 stop13h 35mUnited Airlines
Deal found 5/27$966
Mon 6/105:10 pmLIS - SEA
1 stop26h 25mBritish Airways
Mon 6/241:25 pmSEA - LIS
2 stops25h 50mBritish Airways
Deal found 5/27$967

Portugal to Seattle 2024 flight deals

Discover exclusive flight deals for travel between Portugal and Seattle in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,740,132 searches. Data last updated May 28, 2024.
These are some of the best deals we've found on flights to Seattle in 2024 at this time. More deals are always being added, so be sure to check back regularly.
Fri 11/811:35 amLIS - SEA
1 stop37h 30mTurkish Airlines
Wed 11/137:00 pmSEA - LIS
1 stop36h 00mTurkish Airlines
Deal found 5/27$723
Mon 11/117:10 amLIS - SEA
2 stops17h 50mMultiple Airlines
Mon 11/182:35 pmSEA - LIS
2 stops20h 40mMultiple Airlines
Deal found 5/26$761
Mon 11/113:25 pmLIS - SEA
1 stop26h 50mMultiple Airlines
Mon 11/184:20 pmSEA - LIS
1 stop14h 50mMultiple Airlines
Deal found 5/28$796
Fri 11/810:45 amLIS - SEA
1 stop14h 00mBritish Airways
Wed 11/131:39 pmSEA - LIS
2 stops20h 06mBritish Airways
Deal found 5/27$809
Fri 11/86:10 amLIS - SEA
1 stop15h 10mUnited Airlines
Wed 11/136:39 amSEA - LIS
3 stops19h 51mUnited Airlines
Deal found 5/27$814
Mon 8/2611:25 amLIS - SEA
1 stop18h 00mAir Canada
Mon 9/211:40 amSEA - LIS
1 stop15h 30mAir Canada
Deal found 5/27$816
Mon 11/1111:05 amLIS - SEA
1 stop18h 38mBritish Airways
Mon 11/187:50 amSEA - LIS
2 stops20h 20mBritish Airways
Deal found 5/26$817
Mon 11/1111:05 amLIS - SEA
1 stop18h 38mBritish Airways
Mon 11/187:50 amSEA - LIS
2 stops20h 20mBritish Airways
Deal found 5/28$818
Mon 8/2611:25 amLIS - SEA
1 stop18h 00mAir Canada
Mon 9/27:40 amSEA - LIS
1 stop17h 40mAir Canada
Deal found 5/28$826

Portugal to Seattle flights leaving soon

Find last-minute flight options from Portugal to Seattle 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 2,740,132 searches. Data last updated May 28, 2024.
Have a look at some of the flights available from Portugal to Seattle departing last-minute. It's wise to confirm all flight details are correct before booking.
Mon 6/106:45 pmLIS - SEA
1 stop24h 50mBritish Airways
Mon 6/241:25 pmSEA - LIS
2 stops25h 50mBritish Airways
Deal found 5/28$843
Mon 6/105:10 pmLIS - SEA
2 stops34h 38mBritish Airways
Mon 6/241:25 pmSEA - LIS
2 stops25h 50mBritish Airways
Deal found 5/28$848
Mon 6/1010:25 amLIS - SEA
1 stop32h 42mUnited Airlines
Mon 6/2412:45 pmSEA - LIS
1 stop13h 45mUnited Airlines
Deal found 5/28$902
Mon 6/105:05 amLIS - SEA
1 stop15h 20mUnited Airlines
Mon 6/2412:45 pmSEA - LIS
1 stop13h 45mUnited Airlines
Deal found 5/27$907
Mon 6/1010:25 amLIS - SEA
1 stop32h 42mUnited Airlines
Mon 6/2412:45 pmSEA - LIS
1 stop13h 45mUnited Airlines
Deal found 5/27$922
Sat 6/88:25 amLIS - SEA
2 stops21h 21mAmerican Airlines
Sat 6/158:10 amSEA - LIS
2 stops16h 55mAmerican Airlines
Deal found 5/27$951
Sat 6/811:05 amLIS - SEA
1 stop19h 22mAmerican Airlines
Sat 6/157:30 amSEA - LIS
2 stops17h 35mAmerican Airlines
Deal found 5/27$952
Mon 6/39:00 amOPO - SEA
2 stops23h 59mUnited Airlines
Tue 6/1812:10 pmSEA - OPO
1 stop13h 35mUnited Airlines
Deal found 5/27$966
Mon 6/105:10 pmLIS - SEA
1 stop26h 25mBritish Airways
Mon 6/241:25 pmSEA - LIS
2 stops25h 50mBritish Airways
Deal found 5/27$967

One-way flights to Seattle from Portugal

Search for one-way flight options from Portugal to Seattle. 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 2,740,132 searches. Data last updated May 28, 2024.
Users in need of a one-way flight from Portugal to Seattle can choose from these deals. Those seeking round-trip flights from Portugal to Seattle should utilize the search form at the the top of the page.
Mon 9/169:55 pmLIS - SEA
2 stops29h 06mMultiple Airlines
Deal found 5/27$379
Mon 9/168:05 pmLIS - SEA
3 stops32h 16mMultiple Airlines
Deal found 5/27$387
Thu 10/106:20 amOPO - SEA
2 stops19h 35mMultiple Airlines
Deal found 5/27$491
Thu 10/310:00 pmLIS - SEA
2 stops30h 26mMultiple Airlines
Deal found 5/28$495
Sat 9/288:35 pmLIS - SEA
2 stops30h 26mMultiple Airlines
Deal found 5/27$498
Mon 9/305:55 amLIS - SEA
3 stops42h 13mMultiple Airlines
Deal found 5/27$499
Thu 6/201:30 pmOPO - SEA
2 stops27h 02mMultiple Airlines
Deal found 5/27$502
Wed 10/99:55 pmOPO - SEA
3 stops28h 00mMultiple Airlines
Deal found 5/28$503
Wed 10/910:05 pmLIS - SEA
3 stops27h 50mMultiple Airlines
Deal found 5/28$503

Find flights from Portugal to Seattle within your budget

Customize your flight search to find flights from Portugal to Seattle 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 2,740,132 searches. Data last updated May 28, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$723 - $1,156

Route

Depart

Return

Price

Lisbon Humberto DelgadoSeattle/Tacoma Intl

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Fri 11/8

1 stop37h 30m

Seattle/Tacoma Intl

Wed 11/13

1 stop36h 00m

$723

Lisbon Humberto DelgadoSeattle/Tacoma Intl

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Mon 11/11

2 stops17h 50m

Seattle/Tacoma Intl

Mon 11/18

2 stops20h 40m

$761

Lisbon Humberto DelgadoSeattle/Tacoma Intl

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Fri 11/8

1 stop14h 00m

Seattle/Tacoma Intl

Wed 11/13

2 stops20h 06m

$809

Lisbon Humberto DelgadoSeattle/Tacoma Intl

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Fri 11/8

1 stop15h 10m

Seattle/Tacoma Intl

Wed 11/13

3 stops19h 51m

$814

Lisbon Humberto DelgadoSeattle/Tacoma Intl

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Mon 8/26

1 stop18h 00m

Seattle/Tacoma Intl

Mon 9/2

1 stop15h 30m

$816

Lisbon Humberto DelgadoSeattle/Tacoma Intl

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Fri 11/8

2 stops18h 10m

Seattle/Tacoma Intl

Tue 11/12

2 stops21h 02m

$847

Lisbon Humberto DelgadoSeattle/Tacoma Intl

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Thu 8/15

1 stop22h 45m

Seattle/Tacoma Intl

Tue 8/27

1 stop18h 55m

$981

Lisbon Humberto DelgadoSeattle/Tacoma Intl

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Mon 6/10

2 stops34h 52m

Seattle/Tacoma Intl

Mon 6/24

2 stops17h 55m

$1,029

PortoSeattle/Tacoma Intl

OPO - SEA

OPOSEA

Porto

Sat 6/22

1 stop27h 00m

Seattle/Tacoma Intl

Tue 7/2

1 stop17h 55m

$1,156

Flights are sorted by cheapest first

Deals found on 5/27

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

Best time to book a flight from Portugal to Seattle

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

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated May 28, 2024.
See what other customers who have flown with British Airways, United Airlines and American Airlines from Portugal to Seattle have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
10,476 reviews
Check prices

Food

7.4

Crew

8.6

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Overall

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Delta
8.0
Very good
10,476 reviews
Delta
8.0
Very good
10,476 reviews
Check prices

Food

7.4

Crew

8.6

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Overall

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

KLM
7.9
Good
1,528 reviews
Delta
8.0
Very good
10,476 reviews
Check prices

Food

7.4

Crew

8.6

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Overall

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

SWISS
7.8
Good
1,952 reviews
Delta
8.0
Very good
10,476 reviews
Check prices

Food

7.4

Crew

8.6

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Overall

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Air France
7.5
Good
1,736 reviews
Delta
8.0
Very good
10,476 reviews
Check prices

Food

7.4

Crew

8.6

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Overall

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

WestJet
7.5
Good
2,871 reviews
Delta
8.0
Very good
10,476 reviews
Check prices

Food

7.4

Crew

8.6

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Overall

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Related info for your journey

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

    Located just 11.4 mi from the city center, Seattle/Tacoma Intl (SEA) is the airport most travelers will use when flying to Seattle from Portugal.

  • Can I find flights from Portugal to Seattle for under $800 on Cheapflights?

    Yes, there are multiple flights from Portugal to Seattle for under $800. The cheapest flight booked recently is on Turkish Airlines for just $723, but on average you can expect to pay $831.

  • Are there last-minute flights available from Portugal to Seattle for under $900?

    There are currently 20+ open flights from Portugal to Seattle within the next 7 days for less than $900.

  • What does LIS to SEA mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Lisbon Humberto Delgado Airport to Seattle/Tacoma Intl Airport flight would often be abbreviated as a LIS to SEA flight. Ready for more IATA code knowledge? These are related airports for your current travel destination: Porto Airport (OPO), Faro Airport (FAO), Funchal Madeira Airport (FNC), Ponta Delgada Nordela Airport (PDL), Lajes Airport (TER).

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

    The amount of baggage you can bring on your Portugal to Seattle 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 Portugal to Seattle with specific airlines?

    Yes, Cheapflights allows you to browse and filter Portugal to Seattle 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 Portugal to Seattle that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Portugal to Seattle 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 Portugal to Seattle that allow pets onboard?

    Many airlines flying from Portugal to Seattle 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 Portugal to Seattle?

    Yes, you can often find last-minute deals on Portugal to Seattle 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 Portugal to Seattle flight deals updated?

    The Portugal to Seattle flight deals you see on this page were last updated on 5/28.

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

    Consider American Airlines, Air Canada or Air France when booking your flight. These represent the most popular airlines when flying from Portugal to Seattle.

  • When is the best time to book a flight from Portugal to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Portugal to Seattle (average of $247). Flying from Portugal to Seattle in July is currently the most expensive (average of $406). 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 8 airlines flying from Portugal to Seattle

Discover the top 8 airlines that operate flights from Portugal to Seattle. 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 2,740,132 searches. Data last updated May 28, 2024.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$560Average$718FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
British AirwaysCheapest$700Average$921FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Air FranceCheapest$710Average$816FlexibilityNo cancel feeOn-time77%
Search Air France flights
Air CanadaCheapest$731Average$1,173FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
DeltaCheapest$757Average$1,025FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
KLMCheapest$773Average$939FlexibilityNo cancel feeOn-time75%
Search KLM flights
American AirlinesCheapest$834Average$1,116FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapest$880Average$1,203FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
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Search flights from Portugal to Seattle by cabin class

Find flights from Portugal to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Business Class
Prem Econ Class
Economy Class

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

When you search for this flight from Portugal to Seattle, 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 Portugal to Seattle?

Cheapflights simply makes it quick and affordable to book flights from Portugal to Seattle by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Yes, we can. To see specific flights from Portugal to Seattle with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes! Start tracking prices for Portugal to Seattle flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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