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 airlines fly to Seattle?

British Airways, Delta and Air France are the top three most popular airlines that fly to Seattle from Lisbon according to our data. British Airways is the first choice among our users, with 27% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 4 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

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

Flights via Paris (CDG) offer the lowest average round-trip price of $1,564.

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

Flights connecting via Paris (CDG) have the shortest average one-way travel time: 15h 50m.

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

Paris (CDG) has the shortest average layover time for this route: 3h 15m.

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.

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

WestJet is the most popular carrier operating from Lisbon Humberto Delgado to Seattle/Tacoma Intl

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

Frankfurt am Main (FRA) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

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 4 operators available for flights from Lisbon Humberto Delgado Airport to Seattle/Tacoma Intl Airport as of January 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.

$357 Cheap Flights from Lisbon to Seattle in 2026

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9:30 pm - 7:18 pm

LIS

SEA

29h 48m

2 stops

3:35 pm - 8:20 pm

SEA

LIS

21h 45m

1 stop

$665Multiple Airlines

Mon, Mar 2 - Wed, Mar 11

9:05 am - 10:28 am

LIS

SEA

33h 23m

2 stops

3:35 pm - 8:20 pm

SEA

LIS

21h 45m

1 stop

$724Multiple Airlines

Tue, Mar 3 - Wed, Mar 11

6:20 am - 5:00 pm

LIS

SEA

18h 40m

2 stops

2:35 pm - 10:50 pm

SEA

LIS

24h 15m

2 stops

$752Multiple Airlines

Mon, Feb 23 - Mon, Mar 2

6:30 am - 9:24 pm

LIS

SEA

22h 54m

2 stops

6:50 pm - 9:45 pm

SEA

LIS

18h 55m

1 stop

$756Multiple Airlines

Tue, Feb 17 - Tue, Feb 24

11:05 am - 9:57 pm

LIS

SEA

18h 52m

1 stop

6:50 pm - 9:45 pm

SEA

LIS

18h 55m

1 stop

$757British Airways

Tue, Feb 17 - Tue, Feb 24

11:05 am - 9:23 pm

LIS

SEA

18h 18m

1 stop

1:35 pm - 11:15 pm

SEA

LIS

25h 40m

1 stop

$760American Airlines

Wed, Apr 8 - Wed, Apr 22

6:30 am - 9:24 pm

LIS

SEA

22h 54m

2 stops

6:50 pm - 9:45 pm

SEA

LIS

18h 55m

1 stop

$763Multiple Airlines

Tue, Feb 17 - Tue, Feb 24

8:20 am - 11:51 pm

LIS

SEA

23h 31m

2 stops

6:50 pm - 9:45 pm

SEA

LIS

18h 55m

1 stop

$764Multiple Airlines

Fri, Feb 6 - Sun, Feb 22

11:05 am - 10:07 pm

LIS

SEA

19h 02m

1 stop

6:50 pm - 12:05 pm

SEA

LIS

33h 15m

1 stop

$765British Airways

Fri, Feb 6 - Sat, Feb 21

11:05 am - 10:07 pm

LIS

SEA

19h 02m

1 stop

6:50 pm - 2:55 pm

SEA

LIS

36h 05m

1 stop

$766British Airways

Fri, Feb 6 - Sun, Feb 22

American Airlines flights from Lisbon to Seattle

Our best American Airlines deals on Lisbon to Seattle flight tickets

American Airlines

Apr 8

LIS11:05 amLisbon Humberto Delgado

18h 18m

1 stop

SEA9:23 pmSeattle/Tacoma Intl

Apr 22

SEA1:35 pmSeattle/Tacoma Intl

25h 40m

1 stop

LIS11:15 pmLisbon Humberto Delgado

$760

American Airlines

Feb 7

LIS8:20 amLisbon Humberto Delgado

21h 47m

2 stops

SEA10:07 pmSeattle/Tacoma Intl

Feb 23

SEA7:15 amSeattle/Tacoma Intl

17h 50m

2 stops

LIS9:05 amLisbon Humberto Delgado

$773

American Airlines

Feb 7

LIS8:20 amLisbon Humberto Delgado

22h 00m

2 stops

SEA10:20 pmSeattle/Tacoma Intl

Feb 23

SEA6:44 amSeattle/Tacoma Intl

18h 21m

2 stops

LIS9:05 amLisbon Humberto Delgado

$775

KLM flights from Lisbon to Seattle

Our best KLM deals on Lisbon to Seattle flight tickets

KLM

Mar 1

LIS5:00 amLisbon Humberto Delgado

14h 35m

1 stop

SEA11:35 amSeattle/Tacoma Intl

Mar 12

SEA4:05 pmSeattle/Tacoma Intl

19h 40m

1 stop

LIS6:45 pmLisbon Humberto Delgado

$869

KLM

Feb 1

LIS10:00 amLisbon Humberto Delgado

20h 25m

1 stop

SEA10:25 pmSeattle/Tacoma Intl

Feb 14

SEA9:55 pmSeattle/Tacoma Intl

26h 05m

1 stop

LIS8:00 amLisbon Humberto Delgado

$1,015

Fly from

Fly to

Route

Depart

Return

Price

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Mon 3/2

9:30 pm-7:18 pm

2 stops29h 48m

Seattle/Tacoma Intl

Wed 3/11

3:35 pm-8:20 pm

1 stop21h 45m

$665

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Tue 3/3

9:05 am-10:28 am

2 stops33h 23m

Seattle/Tacoma Intl

Wed 3/11

3:35 pm-8:20 pm

1 stop21h 45m

$724

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Mon 2/23

6:20 am-5:00 pm

2 stops18h 40m

Seattle/Tacoma Intl

Mon 3/2

2:35 pm-10:50 pm

2 stops24h 15m

$752

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Tue 2/17

6:30 am-9:24 pm

2 stops22h 54m

Seattle/Tacoma Intl

Tue 2/24

6:50 pm-9:45 pm

1 stop18h 55m

$756

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Tue 2/17

11:05 am-9:57 pm

1 stop18h 52m

Seattle/Tacoma Intl

Tue 2/24

6:50 pm-9:45 pm

1 stop18h 55m

$757

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Wed 4/8

11:05 am-9:23 pm

1 stop18h 18m

Seattle/Tacoma Intl

Wed 4/22

1:35 pm-11:15 pm

1 stop25h 40m

$760

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Tue 2/17

6:30 am-9:24 pm

2 stops22h 54m

Seattle/Tacoma Intl

Tue 2/24

6:50 pm-9:45 pm

1 stop18h 55m

$763

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Fri 2/6

8:20 am-11:51 pm

2 stops23h 31m

Seattle/Tacoma Intl

Sun 2/22

6:50 pm-9:45 pm

1 stop18h 55m

$764

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Fri 2/6

11:05 am-10:07 pm

1 stop19h 02m

Seattle/Tacoma Intl

Sat 2/21

6:50 pm-12:05 pm

1 stop33h 15m

$765

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Fri 2/6

11:05 am-10:07 pm

1 stop19h 02m

Seattle/Tacoma Intl

Sun 2/22

6:50 pm-2:55 pm

1 stop36h 05m

$766

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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, May 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 $804. If you don’t want to visit Seattle in May, then you should wait until April to fly from Lisbon, when ticket prices are also cheap, with an average price of $815.

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 $950 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 $796 on momondo.

How have Lisbon to Seattle flight prices changed over time?

As of January 2026, prices for Lisbon to Seattle flights are approximately 42% 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	17h 50m
Direct flights	None

The fastest flight from Lisbon to Seattle takes 17h 50m

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 17h 50m.
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 4 operators available for flights from Lisbon Humberto Delgado Airport to Seattle/Tacoma Intl Airport as of January 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 British Airways, representing 27% of all bookings. The subsequent popular airlines are Delta at 27%, Air France at 25%, and United Airlines at 20%.

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 7,704 reviews	Search British Airways flights
United Airlines	PriceFrom $738	Free Cancellation	Rating 7.4 9,212 reviews	Search United Airlines flights
Air France	PriceFrom $762	Free Cancellation	Rating 7.4 1,528 reviews	Search Air France flights
Delta	PriceFrom $775	Free Cancellation	Rating 7.9 8,124 reviews	Search Delta flights

Tacoma

Leavenworth

SeaTac

Ocean Shores

Renton

Olympia

Lynnwood

Kent

Marysville

Puyallup

Redmond

Cle Elum

Tukwila

Lakewood

Federal Way

Centralia

Westport

Kirkland

Fife

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.

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Cheap flights from Lisbon to Seattle from $357

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 4/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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American Airlines flights from Lisbon to Seattle

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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?

As of January 2026, prices for Lisbon to Seattle flights are approximately 42% more expensive when compared to flights at the same time last year.

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

WestJet is the most popular carrier operating from Lisbon Humberto Delgado to Seattle/Tacoma Intl

What airlines fly to Seattle?

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 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.

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: 50% 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 Paris (CDG) offer the lowest average round-trip price of $1,564.

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

Flights connecting via Paris (CDG) have the shortest average one-way travel time: 15h 50m.

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

Paris (CDG) has the shortest average layover time for this route: 3h 15m.

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

How far is Lisbon Humberto Delgado to Seattle/Tacoma Intl by plane?

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

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

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

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

What is the most popular airline from Lisbon to Seattle?

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