What is the most punctual flight time for Lisbon to Seattle flights?

Generally, flights departing at night tend to experience fewer delays. Flights at night have, in the past, seen delays more frequently in comparison.

How often are flights from Lisbon to Seattle delayed?

Historically, on average around 50% of flights between Lisbon and Seattle have experienced a delay on any given week. The average delay length over the past 12 months has been 108 minutes.

What is the cheapest airline that flies from Lisbon Humberto Delgado to Seattle/Tacoma Intl?

WestJet and British Airways are the most popular carriers operating from Lisbon Humberto Delgado to Seattle/Tacoma Intl

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Tuesday has historically seen more delays on average compared to the rest of the week.

Which airport is the most popular layover for flights between Lisbon and Seattle?

Frankfurt am Main (FRA) was the most common stop: 33% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Lisbon to Seattle?

Flights via Amsterdam (AMS) offer the lowest average round-trip price of $1,158.

What airlines fly to Seattle?

Delta, Air France and British Airways are the top three most popular airlines that fly to Seattle from Lisbon according to our data. Delta is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 3 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

Which layover airport has the shortest travel time from Lisbon to Seattle?

Flights connecting via Amsterdam (AMS) have the shortest average one-way travel time: 15h 29m.

Which layover airport has the shortest connection time from Lisbon to Seattle?

Amsterdam (AMS) has the shortest average layover time for this route: 3h 13m.

When did momondo last update prices for flights from Lisbon Humberto Delgado Airport to Seattle/Tacoma Intl Airport?

Prices for flights from Lisbon Humberto Delgado Airport to Seattle/Tacoma Intl Airport refresh daily.

How many operators does momondo search for flights from Lisbon Humberto Delgado Airport to Seattle/Tacoma Intl Airport?

There are 3 operators available for flights from Lisbon Humberto Delgado Airport to Seattle/Tacoma Intl Airport as of February 2026.

How old do you have to be to fly from Lisbon Humberto Delgado Airport to Seattle/Tacoma Intl Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lisbon Humberto Delgado Airport to Seattle/Tacoma Intl Airport.

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$326 Cheap Flights from Lisbon to Seattle in 2026

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Lisbon to Seattle

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:20 am - 10:20 pm

LIS

SEA

47h 00m

3 stops

7:10 pm - 10:15 pm

SEA

LIS

19h 05m

2 stops

$696Multiple Airlines

Sun, May 10 - Mon, May 18

6:30 am - 8:40 pm

LIS

SEA

22h 10m

2 stops

3:40 pm - 8:45 pm

SEA

LIS

21h 05m

2 stops

$723Multiple Airlines

Tue, Apr 7 - Tue, Apr 14

7:20 am - 10:20 pm

LIS

SEA

23h 00m

3 stops

3:40 pm - 8:30 am

SEA

LIS

32h 50m

3 stops

$741Multiple Airlines

Sun, May 10 - Mon, May 18

9:15 pm - 8:40 pm

LIS

SEA

31h 25m

3 stops

3:40 pm - 8:45 pm

SEA

LIS

21h 05m

2 stops

$747Multiple Airlines

Tue, Apr 7 - Tue, Apr 14

7:20 am - 9:40 am

LIS

SEA

34h 20m

2 stops

7:10 pm - 10:15 pm

SEA

LIS

19h 05m

2 stops

$749Multiple Airlines

Sun, May 10 - Mon, May 18

8:35 am - 7:20 pm

LIS

SEA

42h 45m

3 stops

3:40 pm - 8:45 pm

SEA

LIS

21h 05m

3 stops

$774Multiple Airlines

Sun, Apr 5 - Tue, Apr 21

8:35 am - 7:20 pm

LIS

SEA

42h 45m

3 stops

3:40 pm - 8:45 pm

SEA

LIS

21h 05m

3 stops

$776Multiple Airlines

Sun, Apr 5 - Tue, Apr 21

6:20 am - 10:25 am

LIS

SEA

36h 05m

3 stops

3:40 pm - 8:30 am

SEA

LIS

32h 50m

3 stops

$784Multiple Airlines

Sun, Apr 5 - Tue, Apr 21

8:35 am - 10:25 am

LIS

SEA

33h 50m

3 stops

3:40 pm - 8:45 pm

SEA

LIS

21h 05m

3 stops

$820Multiple Airlines

Sun, Apr 5 - Tue, Apr 21

11:35 am - 7:19 pm

LIS

SEA

15h 44m

1 stop

4:35 pm - 11:20 pm

SEA

LIS

22h 45m

2 stops

$836Multiple Airlines

Tue, Jun 2 - Mon, Jul 6

United Airlines flights from Lisbon to Seattle

Our best United Airlines deals on Lisbon to Seattle flight tickets

United Airlines

Mar 13

LIS5:00 amLisbon Humberto Delgado

15h 10m

1 stop

SEA1:10 pmSeattle/Tacoma Intl

Mar 16

SEA5:00 amSeattle/Tacoma Intl

22h 15m

2 stops

LIS10:15 amLisbon Humberto Delgado

$895

United Airlines

Apr 17

LIS5:05 amLisbon Humberto Delgado

15h 15m

1 stop

SEA12:20 pmSeattle/Tacoma Intl

May 6

SEA6:50 pmSeattle/Tacoma Intl

19h 55m

1 stop

LIS10:45 pmLisbon Humberto Delgado

$899

United Airlines

Apr 5

LIS6:15 amLisbon Humberto Delgado

18h 44m

1 stop

SEA4:59 pmSeattle/Tacoma Intl

Apr 21

SEA8:00 amSeattle/Tacoma Intl

18h 30m

1 stop

LIS10:30 amLisbon Humberto Delgado

$908

Lufthansa flights from Lisbon to Seattle

Our best Lufthansa deals on Lisbon to Seattle flight tickets

Lufthansa

Mar 13

LIS5:00 amLisbon Humberto Delgado

15h 10m

1 stop

SEA1:10 pmSeattle/Tacoma Intl

Mar 16

SEA3:00 pmSeattle/Tacoma Intl

16h 50m

1 stop

LIS2:50 pmLisbon Humberto Delgado

$883

Lufthansa

Apr 5

LIS6:15 amLisbon Humberto Delgado

18h 44m

1 stop

SEA4:59 pmSeattle/Tacoma Intl

Apr 21

SEA2:10 pmSeattle/Tacoma Intl

17h 25m

1 stop

LIS3:35 pmLisbon Humberto Delgado

$888

Lufthansa

Apr 5

LIS6:15 amLisbon Humberto Delgado

18h 44m

1 stop

SEA4:59 pmSeattle/Tacoma Intl

Apr 21

SEA8:00 amSeattle/Tacoma Intl

18h 30m

1 stop

LIS10:30 amLisbon Humberto Delgado

$890

Fly from

Fly to

Route

Depart

Return

Price

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Sun 5/10

7:20 am-10:20 pm

3 stops47h 00m

Seattle/Tacoma Intl

Mon 5/18

7:10 pm-10:15 pm

2 stops19h 05m

$696

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Tue 4/7

6:30 am-8:40 pm

2 stops22h 10m

Seattle/Tacoma Intl

Tue 4/14

3:40 pm-8:45 pm

2 stops21h 05m

$723

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Sun 5/10

7:20 am-10:20 pm

3 stops23h 00m

Seattle/Tacoma Intl

Mon 5/18

3:40 pm-8:30 am

3 stops32h 50m

$741

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Tue 4/7

9:15 pm-8:40 pm

3 stops31h 25m

Seattle/Tacoma Intl

Tue 4/14

3:40 pm-8:45 pm

2 stops21h 05m

$747

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Sun 5/10

7:20 am-9:40 am

2 stops34h 20m

Seattle/Tacoma Intl

Mon 5/18

7:10 pm-10:15 pm

2 stops19h 05m

$749

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Sun 4/5

8:35 am-7:20 pm

3 stops42h 45m

Seattle/Tacoma Intl

Tue 4/21

3:40 pm-8:45 pm

3 stops21h 05m

$774

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Sun 4/5

8:35 am-7:20 pm

3 stops42h 45m

Seattle/Tacoma Intl

Tue 4/21

3:40 pm-8:45 pm

3 stops21h 05m

$776

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Sun 4/5

6:20 am-10:25 am

3 stops36h 05m

Seattle/Tacoma Intl

Tue 4/21

3:40 pm-8:30 am

3 stops32h 50m

$784

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Sun 4/5

8:35 am-10:25 am

3 stops33h 50m

Seattle/Tacoma Intl

Tue 4/21

3:40 pm-8:45 pm

3 stops21h 05m

$820

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Tue 6/2

11:35 am-7:19 pm

1 stop15h 44m

Seattle/Tacoma Intl

Mon 7/6

4:35 pm-11:20 pm

2 stops22h 45m

$836

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Lisbon to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Delays

Layovers

What is the cheapest month to fly to Seattle?

In general, April is the cheapest month to fly from Lisbon to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $815. If you don’t want to visit Seattle in April, then you should wait until February to fly from Lisbon, when ticket prices are also cheap, with an average price of $825.

How far in advance should I book a flight to Seattle?

You are more likely to see cheaper flights to Seattle from Lisbon when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $973 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Lisbon for as low as $825 on momondo.

How have Lisbon to Seattle flight prices changed over time?

As of February 2026, prices for Lisbon to Seattle flights are approximately 32% more expensive when compared to flights at the same time last year.

When to book flights from Lisbon to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Lisbon to Seattle according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Lisbon to Seattle (LIS to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Lisbon to Seattle

Fastest flight time	14h 35m
Direct flights	None

The fastest flight from Lisbon to Seattle takes 14h 35m

There are no direct flights from Lisbon to Seattle. There are no popular flight routes from Lisbon to Seattle.

Search flight deals

How far is Lisbon Humberto Delgado to Seattle/Tacoma Intl by plane?
A flight from Lisbon Humberto Delgado to Seattle/Tacoma Intl will travel around 5195.1 mi. In terms of flight time, this usually takes a little over 14h 35m.
When did momondo last update prices for flights from Lisbon Humberto Delgado Airport to Seattle/Tacoma Intl Airport?
Prices for flights from Lisbon Humberto Delgado Airport to Seattle/Tacoma Intl Airport refresh daily.
How many operators does momondo search for flights from Lisbon Humberto Delgado Airport to Seattle/Tacoma Intl Airport?
There are 3 operators available for flights from Lisbon Humberto Delgado Airport to Seattle/Tacoma Intl Airport as of February 2026.
How old do you have to be to fly from Lisbon Humberto Delgado Airport to Seattle/Tacoma Intl Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lisbon Humberto Delgado Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Lisbon to Seattle?
momondo data reveals that the most frequently booked airline on the route from Lisbon to Seattle is Delta, representing 41% of all bookings. The subsequent popular airlines are Air France at 29% and British Airways at 29%.

Best airlines flying from Lisbon to Seattle

Compare and see reviews for airlines that fly from Lisbon to Seattle with momondo

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom $720	Free Cancellation	Rating 6.7 7,760 reviews	Search British Airways flights
Air France	PriceFrom $762	Free Cancellation	Rating 7.4 1,536 reviews	Search Air France flights
Delta	PriceFrom $775	Free Cancellation	Rating 7.9 8,236 reviews	Search Delta flights

Tacoma

Leavenworth

SeaTac

Ocean Shores

Renton

Olympia

Lynnwood

Kent

Marysville

Redmond

Puyallup

Cle Elum

Lakewood

Tukwila

Federal Way

Fife

Westport

Kirkland

Centralia

Tumwater

Why use momondo?

Why should I use momondo to find a flight deal from Lisbon to Seattle?

Finding the right flight to Seattle from Lisbon is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Seattle quick and easy, saving you time and money.

Can I find flights from Lisbon to Seattle with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Seattle from Lisbon with this policy.

How can momondo help me find flights from Lisbon to Seattle?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Lisbon to Seattle.

I’m not ready to book a flight from Lisbon to Seattle right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Seattle, momondo offers a useful price alert feature which will track prices for flights to Seattle from Lisbon and alert you when they change.

An easier way to manage your Seattle trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Wed 3/25

Wed 4/1

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States

Nearby airports

Airlines

Cabin classes

Other United States destinations

Other flights from Lisbon

Complete your trip

Feeling lucky

Airports servicing Washington

Walla Walla Airport

Bellingham Airport

Wenatchee Pangborn Field Airport

Eastsound Orcas Island Airport

Friday Harbor SPB Airport

Spokane Airport

Kenmore Air Harbor Airport

Pasco Tri Cities Airport

Pullman Moscow Regional Airport

Rosario SPB Airport

Yakima Air Terminal Airport

Cheap flights from Lisbon to Seattle from $326

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Lisbon to Seattle departing on 4/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Lisbon to Seattle

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

United Airlines flights from Lisbon to Seattle

Our best United Airlines deals on Lisbon to Seattle flight tickets

Lufthansa flights from Lisbon to Seattle

Our best Lufthansa deals on Lisbon to Seattle flight tickets

momondo Fare Finder

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

See travel insights to Seattle from

How to get the cheapest flight ticket from Lisbon to Seattle

What is the cheapest month to fly to Seattle?

How far in advance should I book a flight to Seattle?

How have Lisbon to Seattle flight prices changed over time?

What is the cheapest airline that flies from Lisbon Humberto Delgado to Seattle/Tacoma Intl?

What airlines fly to Seattle?

How often are flights from Lisbon to Seattle delayed?

What is the most punctual flight time for Lisbon to Seattle flights?

What day of the week experiences the fewest flight delays on this route?

Which airport is the most popular layover for flights between Lisbon and Seattle?

Which layover airport offers the lowest fares from Lisbon to Seattle?

Which layover airport has the shortest travel time from Lisbon to Seattle?

Which layover airport has the shortest connection time from Lisbon to Seattle?

When to book flights from Lisbon to Seattle

Cheap Lisbon to Seattle (LIS to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Lisbon to Seattle

Fastest flight time

Direct flights

Best airlines flying from Lisbon to Seattle

Compare and see reviews for airlines that fly from Lisbon to Seattle with momondo

Traveling to a place near Seattle?

Why use momondo?

Why should I use momondo to find a flight deal from Lisbon to Seattle?

Can I find flights from Lisbon to Seattle with flexible booking policies on momondo?

How can momondo help me find flights from Lisbon to Seattle?

I’m not ready to book a flight from Lisbon to Seattle right now. Can momondo alert me if prices change?

An easier way to manage your Seattle trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Washington

Fly your favorite airline to Seattle

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Seattle

List of cabin classes available on flights landing in Seattle. Availability may vary depending on flight origin and airline.

Popular cities in the United States

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from Lisbon

According to popular flight searches on momondo this year

Complete your trip to Seattle

Explore popular destinations other users love

According to popular flight searches on momondo this year