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Cheap flights from Seattle to Lisbon from C$ 967

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 4/3. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LIS
27 Feb — 6 Mar1
1 adult

Cheap flight deals from Seattle to Lisbon

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Lisbon (LIS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 22 February 2025.

Round-trip from

C$ 1,085

One-way from

C$ 967

Popular in

June

Cheapest in

January

Average price

C$ 1,096
Turkish Airlines
  • Turkish Airlines
  • 8/4-15/4
  • 2 total stops
  • 63h 30m total
  • Seattle to Lisbon
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WestJet
  • WestJet
  • 4/3
  • 2 total stops
  • 18h 15m total
  • Seattle to Lisbon
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (C$ 439 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 66 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from Seattle to Lisbon

Cheapest flights from Seattle to Lisbon
Explore the most affordable flight options available from Seattle to Lisbon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 February 2025.

Wed 5/117:46 a.m.SEA - LIS
2 stops20h 24mMultiple Airlines
Wed 12/1111:15 a.m.LIS - SEA
1 stop18h 34mMultiple Airlines
Deal found 20/2C$ 1,046
Tue 8/47:10 p.m.SEA - LIS
1 stop30h 45mTurkish Airlines
Tue 15/44:30 p.m.LIS - SEA
1 stop32h 45mTurkish Airlines
Deal found 22/2C$ 1,085
Sun 13/45:05 p.m.SEA - LIS
3 stops32h 15mUnited Airlines
Wed 23/411:25 a.m.LIS - SEA
2 stops36h 33mUnited Airlines
Deal found 21/2C$ 1,106
Wed 16/46:50 p.m.SEA - LIS
1 stop19h 00mLufthansa
Wed 30/46:15 a.m.LIS - SEA
1 stop18h 44mLufthansa
Deal found 20/2C$ 1,146
Wed 19/32:50 p.m.SEA - LIS
2 stops37h 35mSWISS
Tue 25/312:35 p.m.LIS - SEA
2 stops41h 18mSWISS
Deal found 21/2C$ 1,170
Wed 21/511:30 p.m.SEA - LIS
1 stop13h 50mIcelandair
Thu 29/510:20 p.m.LIS - SEA
1 stop21h 05mIcelandair
Deal found 21/2C$ 1,190
Mon 24/37:50 p.m.SEA - LIS
1 stop19h 05mBritish Airways
Sun 30/35:10 p.m.LIS - SEA
1 stop26h 25mBritish Airways
Deal found 21/2C$ 1,251
Wed 17/99:57 a.m.SEA - LIS
2 stops29h 28mFinnair
Wed 1/1011:00 a.m.LIS - SEA
1 stop32h 35mFinnair
Deal found 20/2C$ 1,725

Find flights from Seattle to Lisbon within your budget

Customize your flight search to find flights from Seattle to Lisbon 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 629,999 searches. Data last updated 22 February 2025.

Fly from

Seattle

Fly to

Lisbon

Route

Depart

Return

Price

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Tue 8/4

7:10 p.m.-9:55 a.m.

1 stop30h 45m

Lisbon Humberto Delgado

Tue 15/4

4:30 p.m.-5:15 p.m.

1 stop32h 45m

C$ 1,085

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Sun 13/4

5:05 p.m.-9:20 a.m.

3 stops32h 15m

Lisbon Humberto Delgado

Wed 23/4

11:25 a.m.-3:58 p.m.

2 stops36h 33m

C$ 1,106

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Wed 16/4

6:50 p.m.-9:50 p.m.

1 stop19h 00m

Lisbon Humberto Delgado

Wed 30/4

6:15 a.m.-4:59 p.m.

1 stop18h 44m

C$ 1,146

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Wed 19/3

2:50 p.m.-11:25 a.m.

2 stops37h 35m

Lisbon Humberto Delgado

Tue 25/3

12:35 p.m.-10:53 p.m.

2 stops41h 18m

C$ 1,170

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Wed 21/5

11:30 p.m.-9:20 p.m.

1 stop13h 50m

Lisbon Humberto Delgado

Thu 29/5

10:20 p.m.-11:25 a.m.

1 stop21h 05m

C$ 1,190

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Mon 24/3

7:50 p.m.-9:55 p.m.

1 stop19h 05m

Lisbon Humberto Delgado

Sun 30/3

5:10 p.m.-11:35 a.m.

1 stop26h 25m

C$ 1,251

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Tue 1/7

10:10 a.m.-11:00 p.m.

2 stops28h 50m

Lisbon Humberto Delgado

Tue 15/7

4:30 p.m.-4:00 p.m.

1 stop31h 30m

C$ 1,809

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Wed 21/5

7:00 p.m.-9:20 p.m.

1 stop18h 20m

Lisbon Humberto Delgado

Sat 31/5

6:35 a.m.-4:00 p.m.

2 stops17h 25m

C$ 1,827

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Mon 19/5

10:54 p.m.-9:05 a.m.

1 stop26h 11m

Lisbon Humberto Delgado

Wed 28/5

9:00 a.m.-11:02 p.m.

2 stops22h 02m

C$ 1,843

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Tue 4/3

3:15 p.m.-5:30 p.m.

2 stops18h 15m

C$ 967

Flights are sorted by cheapest round-trip flights first.

Deals found on 22/2

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

Have a flexible travel schedule? Discover the best time to fly to Lisbon 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.

Travel insights for flights from Seattle to Lisbon

Get recent, data-driven insights about flights from Seattle to Lisbon including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Seattle to Lisbon?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Lisbon. Price data was last updated on 14 February 2025.

Booking 67 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Lisbon. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Seattle to Lisbon?

Currently, January is the cheapest month in which you can book a flight from Seattle to Lisbon (average of C$ 482). Flying from Seattle to Lisbon in July is currently the most expensive (average of C$ 803). 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.

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

Find hourly flight availability from Seattle to Lisbon. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 22 February 2025.

When flying from Seattle to Lisbon, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 6% versus a flight at noon.

Rainfall in Lisbon by month

Plan your trip to Lisbon by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Lisbon ranges from 6.0 - 122.0 mm per month. December is typically the wettest month, when rainfall can reach 122.0 mm. July is typically the driest time to visit Lisbon when rainfall is around 6.0 mm.

Temperature in Lisbon by month

Plan your trip to Lisbon by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Lisbon, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 11.0 C).

Reviews of airlines servicing Lisbon

Get insights into the airlines that provide service to Lisbon. 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 Lisbon. Reviews last updated 22 February 2025.
Finnair
7.6
Good
1,271 reviews
Check prices

Entertainment

6.9

Comfort

7.4

Overall

7.6

Crew

8.1

Food

6.7

Boarding

7.7

Reviews

1 / 20

4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight

Finnair
7.6
Good
1,271 reviews
Finnair
7.6
Good
1,271 reviews
Check prices

Entertainment

6.9

Comfort

7.4

Overall

7.6

Crew

8.1

Food

6.7

Boarding

7.7

Reviews

1 / 20

4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight

SWISS
7.5
Good
1,566 reviews
Finnair
7.6
Good
1,271 reviews
Check prices

Entertainment

6.9

Comfort

7.4

Overall

7.6

Crew

8.1

Food

6.7

Boarding

7.7

Reviews

1 / 20

4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight

United Airlines
7.4
Good
8,754 reviews
Finnair
7.6
Good
1,271 reviews
Check prices

Entertainment

6.9

Comfort

7.4

Overall

7.6

Crew

8.1

Food

6.7

Boarding

7.7

Reviews

1 / 20

4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight

Turkish Airlines
7.3
Good
3,825 reviews
Finnair
7.6
Good
1,271 reviews
Check prices

Entertainment

6.9

Comfort

7.4

Overall

7.6

Crew

8.1

Food

6.7

Boarding

7.7

Reviews

1 / 20

4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight

American Airlines
7.2
Good
10,000 reviews
Finnair
7.6
Good
1,271 reviews
Check prices

Entertainment

6.9

Comfort

7.4

Overall

7.6

Crew

8.1

Food

6.7

Boarding

7.7

Reviews

1 / 20

4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight

Related info for your journey

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

  • What are the cheapest airlines flying from Seattle to Lisbon round-trip?

    Currently priced at C$ 1,085, Turkish Airlines will fly you from Seattle to Lisbon and back. In addition to Turkish Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Lufthansa - these airlines can fly you to your destination from C$ 1,106 and C$ 1,146, respectively. These flights start at 24% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Seattle to Lisbon one-way?

    The cheapest airlines for a one-way flight from Seattle to Lisbon are WestJet (C$ 967), Icelandair (C$ 1,033), and British Airways (C$ 1,066).

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Seattle to Lisbon (average of C$ 482). Flying from Seattle to Lisbon in July is currently the most expensive (average of C$ 803). 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

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Sintra
Setúbal
Óbidos
Beja
Costa da Caparica

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Top airline flying from Seattle to Lisbon

Discover the top airline that operate flights from Seattle to Lisbon. 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 629,999 searches. Data last updated 22 February 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapestC$ 978AverageC$ 1,340FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

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

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Lisbon from Seattle today with Cheapflights!

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

Cheapflights simply makes it quick and affordable to book flights from Seattle to Lisbon 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 Seattle to Lisbon with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Seattle to Lisbon flexibly with Cheapflights today.

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

Yes, Cheapflights offers price alerts on Seattle to Lisbon flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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