How long is the flight from Seattle to Lisbon?

Departing from Seattle to Lisbon will take you 18h 20m. The distance from Seattle to Lisbon is about 5199 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

Our cheapest airline available from Seattle to Lisbon is Icelandair. Our recent data shows that you can find tickets from as low as $358 on this airline. Additional options worth looking into are Lufthansa and British Airways, starting at $517 and $534 round-trip. Icelandair is currently priced 60% below the average price you’ll pay for this route.

In terms of precipitation, rainfall in Lisbon ranges from 0.2 - 4.8 inches per month. December is typically the wettest month, when rainfall can reach 4.8 in. July is typically the driest time to visit Lisbon when rainfall is around 0.2 in.

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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

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

Consider British Airways, Delta or United Airlines when booking your flight. These represent the most popular airlines when flying from Seattle to Lisbon.

Where are the most common layover locations when flying from Seattle to Lisbon?

Seattle to Lisbon flights have a layover in London most often. Paris sees the second most layovers for non-direct flights flying from Seattle to Lisbon.

Where are the least popular layover locations for Seattle to Lisbon flights?

Seattle to Lisbon flights have a layover in Toronto the least frequently.

What are some popular things to do or see while on a layover in London?

The majority of London visitors spend their time at Hyde Park, Buckingham Palace, and Piccadilly Circus. Travelers on a layover in London can visit Hyde Park, Buckingham Palace, and Piccadilly Circus, by traveling 12.5 mi, 13.7 mi, and 14.1 mi, respectively after landing at London Heathrow. Travelers can rent a car at London Heathrow for an average daily rate of $29 to make sightseeing during their layover a little easier.

What are some popular points of interest to see during a layover in Paris?

Eiffel Tower, Champs-Elysées, and Louvre Museum are currently the most popular points of interest in Paris at the moment. Those on a layover in Paris interested in visiting Eiffel Tower, Champs-Elysées, or Louvre Museum can do so by traveling 15.8 mi, 14.7 mi, and 14.3 mi, respectively from Paris Charles de Gaulle. Those landing in Paris looking to spend some time exploring during their layover can rent a car for about $38 per day.

Most accurate provider : When it comes to deals on Seattle-Lisbon flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Seattle-Lisbon flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Seattle-Lisbon flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Seattle-Lisbon flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Lisbon flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

$262+ Flights from Seattle to Lisbon

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Seattle to Lisbon with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Lisbon Humberto Delgado are usually found in November or January, booked 27 days in advance, depart on a Monday or Tuesday and return on a Wednesday

Cheap flight deals from Seattle to Lisbon

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$494 (Booking.com)
One-way from	$262 (SmartFares)
Popular in	June
Cheapest in	November
Average price	$635

Provider with most accurate pricing for Seattle/Tacoma Intl-Lisbon Humberto Delgado flight deals.

Search Deals

Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Lisbon Humberto Delgado flights.

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From Seattle/Tacoma Intl to Lisbon Humberto Delgado

Search Deals

One-way flight from Seattle/Tacoma Intl to Lisbon Humberto Delgado

Search Deals

Highest demand for flights based on searches. 20% potential increase in price ($227 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($37 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in November 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 November 13, 2025.

Tue 12/25:50 amSEA - LIS

2 stops19h 30mMultiple Airlines

Tue 12/96:10 amLIS - SEA

2 stops24h 18mMultiple Airlines

Deal found 11/12

$494

Tue 12/27:00 amSEA - LIS

2 stops19h 15mUnited Airlines

Tue 12/911:20 amLIS - SEA

3 stops41h 40mUnited Airlines

Deal found 11/12

$496

Thu 12/115:00 amSEA - LIS

2 stops21h 15mUnited Airlines

Wed 12/2411:55 amLIS - SEA

2 stops43h 17mUnited Airlines

Deal found 11/13

$497

Tue 12/22:00 pmSEA - LIS

1 stop16h 30mLufthansa

Tue 12/95:00 amLIS - SEA

1 stop15h 10mLufthansa

Deal found 11/12

$499

Sat 12/65:11 pmSEA - LIS

2 stops33h 04mUnited Airlines

Tue 12/165:00 amLIS - SEA

1 stop15h 10mUnited Airlines

Deal found 11/13

$501

Wed 12/35:00 amSEA - LIS

2 stops21h 15mUnited Airlines

Tue 12/95:00 amLIS - SEA

3 stops24h 00mUnited Airlines

Deal found 11/12

$505

Mon 12/15:45 amSEA - LIS

2 stops19h 35mMultiple Airlines

Mon 12/82:10 pmLIS - SEA

2 stops30h 00mMultiple Airlines

Deal found 11/11

$513

Wed 11/129:59 amSEA - LIS

1 stop14h 56mMultiple Airlines

Wed 11/1911:05 amLIS - SEA

1 stop19h 15mMultiple Airlines

Deal found 11/11

$515

Thu 12/47:00 amSEA - LIS

2 stops17h 10mUnited Airlines

Mon 12/85:00 amLIS - SEA

1 stop15h 10mUnited Airlines

Deal found 11/11

$521

Best flights from Seattle to Lisbon
Discover carefully curated flight deals from Seattle to Lisbon that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 13, 2025.

Thu 1/157:00 amSEA - LIS

2 stops18h 20mUnited Airlines

Wed 1/2111:20 amLIS - SEA

3 stops41h 52mUnited Airlines

Deal found 11/12

$494

Sun 1/111:45 pmSEA - LIS

1 stop34h 15mDelta

Tue 1/205:00 amLIS - SEA

1 stop14h 50mDelta

Deal found 11/12

$497

Sat 1/106:12 amSEA - LIS

1 stop18h 53mMultiple Airlines

Thu 1/2210:55 amLIS - SEA

1 stop19h 12mMultiple Airlines

Deal found 11/12

$506

Sat 12/65:11 pmSEA - LIS

2 stops33h 04mUnited Airlines

Tue 12/1611:20 amLIS - SEA

2 stops43h 08mUnited Airlines

Deal found 11/12

$496

Thu 12/118:10 amSEA - LIS

1 stop18h 05mUnited Airlines

Wed 12/2411:55 amLIS - SEA

2 stops43h 17mUnited Airlines

Deal found 11/13

$497

Mon 1/511:09 pmSEA - LIS

1 stop25h 01mMultiple Airlines

Mon 1/1211:20 amLIS - SEA

2 stops39h 56mMultiple Airlines

Deal found 11/12

$586

Fri 1/168:10 amSEA - LIS

1 stop17h 10mUnited Airlines

Sun 1/1810:50 amLIS - SEA

1 stop19h 26mUnited Airlines

Deal found 11/12

$504

Thu 12/47:00 amSEA - LIS

2 stops17h 10mUnited Airlines

Mon 12/85:00 amLIS - SEA

1 stop15h 10mUnited Airlines

Deal found 11/11

$521

Sat 1/107:00 amSEA - LIS

2 stops17h 55mUnited Airlines

Thu 1/2210:15 amLIS - SEA

3 stops20h 28mUnited Airlines

Deal found 11/11

$605

Last-minute flights from Seattle to Lisbon
Discover last-minute flight deals from Seattle to Lisbon. Data last updated November 13, 2025 and is based on user searches.

Mon 12/15:45 amSEA - LIS

2 stops19h 35mMultiple Airlines

Mon 12/82:10 pmLIS - SEA

2 stops30h 00mMultiple Airlines

Deal found 11/11

$513

Tue 12/25:50 amSEA - LIS

2 stops19h 30mMultiple Airlines

Tue 12/96:10 amLIS - SEA

2 stops24h 18mMultiple Airlines

Deal found 11/12

$494

Tue 12/27:00 amSEA - LIS

2 stops19h 15mUnited Airlines

Tue 12/911:20 amLIS - SEA

3 stops41h 40mUnited Airlines

Deal found 11/12

$496

Tue 12/22:00 pmSEA - LIS

1 stop16h 30mLufthansa

Tue 12/95:00 amLIS - SEA

1 stop15h 10mLufthansa

Deal found 11/12

$499

Wed 12/35:00 amSEA - LIS

2 stops21h 15mUnited Airlines

Tue 12/95:00 amLIS - SEA

3 stops24h 00mUnited Airlines

Deal found 11/12

$505

Thu 12/48:10 amSEA - LIS

1 stop18h 05mUnited Airlines

Mon 12/85:00 amLIS - SEA

1 stop15h 10mUnited Airlines

Deal found 11/11

$521

Thu 12/410:40 amSEA - LIS

2 stops25h 40mScandinavian Airlines

Mon 12/89:20 pmLIS - SEA

2 stops33h 03mScandinavian Airlines

Deal found 11/11

$522

Sat 12/65:11 pmSEA - LIS

2 stops33h 04mUnited Airlines

Tue 12/165:00 amLIS - SEA

1 stop15h 10mUnited Airlines

Deal found 11/12

$501

Thu 12/115:00 amSEA - LIS

2 stops21h 15mUnited Airlines

Wed 12/2411:55 amLIS - SEA

2 stops43h 17mUnited Airlines

Deal found 11/13

$497

One-way flights from Seattle to Lisbon
Search for one-way flight options from Seattle to Lisbon. Find affordable one-way fares based on user searches. Data last updated November 13, 2025.

Wed 12/32:35 pmSEA - LIS

1 stop21h 45mIcelandair

Deal found 11/11

$262

Wed 1/142:35 pmSEA - LIS

1 stop21h 45mIcelandair

Deal found 11/12

$270

Wed 12/102:35 pmSEA - LIS

1 stop21h 45mIcelandair

Deal found 11/10

$284

Sat 12/610:40 amSEA - LIS

2 stops23h 30mScandinavian Airlines

Deal found 11/11

$307

Thu 12/47:10 amSEA - LIS

2 stops29h 10mScandinavian Airlines

Deal found 11/11

$308

Wed 1/147:10 amSEA - LIS

2 stops30h 25mScandinavian Airlines

Deal found 11/13

$349

Wed 12/107:55 amSEA - LIS

2 stops28h 25mMultiple Airlines

Deal found 11/10

$355

Tue 12/23:10 pmSEA - LIS

3 stops42h 55mMultiple Airlines

Deal found 11/11

$358

Wed 12/37:55 amSEA - LIS

2 stops28h 25mMultiple Airlines

Deal found 11/11

$360

Thu 12/43:10 pmSEA - LIS

3 stops46h 05mMultiple Airlines

Deal found 11/11

$361

Mon 12/12:00 pmSEA - LIS

1 stop16h 50mLufthansa

Deal found 11/10

$363

Fly from

Fly to

Route

Depart

Return

Price

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Thu 1/15

7:00 am-9:20 am

2 stops18h 20m

Lisbon Humberto Delgado

Wed 1/21

11:20 am-9:12 pm

3 stops41h 52m

$494

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Sat 12/6

5:11 pm-10:15 am

2 stops33h 04m

Lisbon Humberto Delgado

Tue 12/16

11:20 am-10:28 pm

2 stops43h 08m

$496

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Sun 1/11

1:45 pm-8:00 am

1 stop34h 15m

Lisbon Humberto Delgado

Tue 1/20

5:00 am-11:50 am

1 stop14h 50m

$497

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Thu 12/11

8:10 am-10:15 am

1 stop18h 05m

Lisbon Humberto Delgado

Wed 12/24

11:55 am-11:12 pm

2 stops43h 17m

$497

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Fri 1/16

8:10 am-9:20 am

1 stop17h 10m

Lisbon Humberto Delgado

Sun 1/18

10:50 am-10:16 pm

1 stop19h 26m

$504

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Sat 1/10

6:12 am-9:05 am

1 stop18h 53m

Lisbon Humberto Delgado

Thu 1/22

10:55 am-10:07 pm

1 stop19h 12m

$506

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Thu 12/4

7:00 am-8:10 am

2 stops17h 10m

Lisbon Humberto Delgado

Mon 12/8

5:00 am-12:10 pm

1 stop15h 10m

$521

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Mon 1/5

11:09 pm-8:10 am

1 stop25h 01m

Lisbon Humberto Delgado

Mon 1/12

11:20 am-7:16 pm

2 stops39h 56m

$586

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Sat 1/10

7:00 am-8:55 am

2 stops17h 55m

Lisbon Humberto Delgado

Thu 1/22

10:15 am-10:43 pm

3 stops20h 28m

$605

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Sat 12/6

2:35 pm-8:20 pm

1 stop21h 45m

$270

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/11

Showing 1-10 of 18 results

Compare providers for flights from Seattle to Lisbon

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Lisbon in November.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
AranGrant	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars
CheapTicketsDeal	Price Accuracy3 stars	Trust Score*3 stars
Cheapflightsfares	Price Accuracy3 stars	Trust Score*2 stars
Cheapfaremart	Price Accuracy-	Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Seattle-Lisbon flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Seattle-Lisbon flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Seattle-Lisbon flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Seattle-Lisbon flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Lisbon flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Lisbon

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

To ensure you get the cheapest price possible for a flight from Seattle to Lisbon, you should look to book at least 27 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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 $354). Flying from Seattle to Lisbon in June is currently the most expensive (average of $1,016). 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?

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 afternoon, which can drop the price by up to 10% versus a flight at noon.

What is the cheapest day to fly from Seattle to Lisbon?

Travelers seeking maximum savings on their Seattle to Lisbon flight should consider departing on Monday afternoons when fares are most often at their lowest. Friday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Lisbon

Get a feel of what it's like to fly with Delta, Air France, and United Airlines from Seattle to Lisbon by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

7.9

Good

8,008 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Delta

7.9

Good

8,008 reviews

Delta

7.9

Good

8,008 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

Air France

7.4

Good

1,486 reviews

Delta

7.9

Good

8,008 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

United Airlines

7.4

Good

9,015 reviews

Delta

7.9

Good

8,008 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

Lufthansa

6.8

Okay

7,571 reviews

Delta

7.9

Good

8,008 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

British Airways

6.7

Okay

7,516 reviews

Delta

7.9

Good

8,008 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

Related info for your journey

How long is the flight from Seattle to Lisbon?
Departing from Seattle to Lisbon will take you 18h 20m. The distance from Seattle to Lisbon is about 5199 mi. Both multi-stop and nonstop flights can be found to your destination and back.
What are the cheapest airlines flying from Seattle to Lisbon round-trip?
Our cheapest airline available from Seattle to Lisbon is Icelandair. Our recent data shows that you can find tickets from as low as $358 on this airline. Additional options worth looking into are Lufthansa and British Airways, starting at $517 and $534 round-trip. Icelandair is currently priced 60% below the average price you’ll pay for this route.
Where are the most common layover locations when flying from Seattle to Lisbon?
Seattle to Lisbon flights have a layover in London most often. Paris sees the second most layovers for non-direct flights flying from Seattle to Lisbon.
What are some popular things to do or see while on a layover in London?
The majority of London visitors spend their time at Hyde Park, Buckingham Palace, and Piccadilly Circus. Travelers on a layover in London can visit Hyde Park, Buckingham Palace, and Piccadilly Circus, by traveling 12.5 mi, 13.7 mi, and 14.1 mi, respectively after landing at London Heathrow. Travelers can rent a car at London Heathrow for an average daily rate of $29 to make sightseeing during their layover a little easier.
What are some popular points of interest to see during a layover in Paris?
Eiffel Tower, Champs-Elysées, and Louvre Museum are currently the most popular points of interest in Paris at the moment. Those on a layover in Paris interested in visiting Eiffel Tower, Champs-Elysées, or Louvre Museum can do so by traveling 15.8 mi, 14.7 mi, and 14.3 mi, respectively from Paris Charles de Gaulle. Those landing in Paris looking to spend some time exploring during their layover can rent a car for about $38 per day.
Where are the least popular layover locations for Seattle to Lisbon flights?
Seattle to Lisbon flights have a layover in Toronto the least frequently.
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 $354). Flying from Seattle to Lisbon in June is currently the most expensive (average of $1,016). 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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Fátima

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Other flights to Lisbon

Top 10 airlines flying from Seattle to Lisbon

Airline	Cheapest	Average	Flexibility	On-time
Icelandair	Cheapest$358	Average$597	FlexibilityNo cancel fee	On-time76%
Lufthansa	Cheapest$517	Average$802	FlexibilityNo cancel fee	On-time76%
British Airways	Cheapest$534	Average$831	FlexibilityNo cancel fee	On-time70%
Air Canada	Cheapest$543	Average$1,024	FlexibilityNo cancel fee	On-time67%
United Airlines	Cheapest$543	Average$947	FlexibilityNo cancel fee	On-time69%
Air France	Cheapest$560	Average$967	FlexibilityNo cancel fee	On-time77%
SWISS	Cheapest$562	Average$940	FlexibilityNo cancel fee	On-time79%
KLM	Cheapest$566	Average$877	FlexibilityNo cancel fee	On-time75%
American Airlines	Cheapest$621	Average$1,054	FlexibilityNo cancel fee	On-time71%
Aer Lingus	Cheapest$627	Average$923	FlexibilityNo cancel fee	On-timeN/A

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$262+ Cheap flights from Seattle (SEA) to Lisbon (LIS)

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 12/3. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Seattle to Lisbon with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Lisbon Humberto Delgado are usually found in November or January, booked 27 days in advance, depart on a Monday or Tuesday and return on a Wednesday

Cheap flight deals from Seattle to Lisbon

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Seattle to Lisbon

Cheapest flights from Seattle to LisbonExplore 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 November 13, 2025.

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 November 13, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Seattle to Lisbon that are best for you.

Compare providers for flights from Seattle to Lisbon

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Lisbon in November.

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.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Lisbon

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

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

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

What is the cheapest day to fly from Seattle to Lisbon?

Reviews of airlines servicing Lisbon

Get a feel of what it's like to fly with Delta, Air France, and United Airlines from Seattle to Lisbon by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

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.

How long is the flight from Seattle to Lisbon?

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

Where are the most common layover locations when flying from Seattle to Lisbon?

What are some popular things to do or see while on a layover in London?

What are some popular points of interest to see during a layover in Paris?

Where are the least popular layover locations for Seattle to Lisbon flights?

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

How can I find direct flights from Seattle to Lisbon?

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

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

Traveling to a place near Lisbon?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Seattle to Lisbon

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Top 10 airlines flying from Seattle to Lisbon

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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 November 13, 2025.