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.

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

Flights via London (LHR) offer the lowest average round-trip price of $807.

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

London (LHR) has the shortest average layover time for this route: 1h 57m.

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

London (LHR) was the most common stop: 60% of momondo users choosing 1-stop flights on this route connected there.

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 33% 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 has the shortest travel time from Lisbon to Seattle?

Flights connecting via London (LHR) have the shortest average one-way travel time: 14h 58m.

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.

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 November 2025.

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.

$380 Cheap Flights from Lisbon to Seattle in 2025/26

Q: What is the typical price of a round-trip flight between Lisbon and Seattle?

Prices are currently low for flights on this route. Typical prices usually range from $803 to $1,079. The lowest price recently found on this route was $685.

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9:05 am - 11:54 amLIS-SEA

34h 49m2 stops

2:35 pm - 8:20 pmSEA-LIS

21h 45m1 stop

$685Multiple Airlines

Find Deal

Thu, Jan 15 - Wed, Jan 28

5:40 pm - 10:26 amLIS-SEA

48h 46m2 stops

2:35 pm - 8:20 pmSEA-LIS

21h 45m1 stop

$724Multiple Airlines

Find Deal

Mon, Jan 12 - Wed, Jan 28

11:00 am - 10:06 pmLIS-SEA

19h 06m2 stops

3:10 pm - 10:55 pmSEA-LIS

23h 45m2 stops

$748Multiple Airlines

Find Deal

Thu, Jan 15 - Wed, Jan 28

5:40 pm - 10:26 amLIS-SEA

48h 46m2 stops

2:35 pm - 8:20 pmSEA-LIS

21h 45m1 stop

$755Multiple Airlines

Find Deal

Tue, Jan 13 - Wed, Jan 21

11:00 am - 7:17 pmLIS-SEA

16h 17m1 stop

2:35 pm - 8:20 pmSEA-LIS

21h 45m1 stop

$775Multiple Airlines

Find Deal

Thu, Jan 15 - Wed, Jan 28

10:00 pm - 9:08 pmLIS-SEA

31h 08m2 stops

2:35 pm - 8:20 pmSEA-LIS

21h 45m1 stop

$813Multiple Airlines

Find Deal

Mon, Jan 12 - Sat, Jan 24

2:00 pm - 10:01 amLIS-SEA

52h 01m2 stops

10:09 am - 9:55 amSEA-LIS

15h 46m1 stop

$841Multiple Airlines

Find Deal

Mon, Jan 12 - Sun, Jan 25

5:00 am - 12:10 pmLIS-SEA

15h 10m1 stop

3:10 pm - 1:20 pmSEA-LIS

14h 10m1 stop

$842Lufthansa

Find Deal

Thu, Jan 15 - Wed, Jan 28

5:00 am - 12:10 pmLIS-SEA

15h 10m1 stop

7:00 am - 8:10 amSEA-LIS

17h 10m1 stop

$853United Airlines

Find Deal

Thu, Jan 15 - Wed, Jan 28

2:05 pm - 7:17 pmLIS-SEA

37h 12m2 stops

10:09 am - 11:40 amSEA-LIS

17h 31m1 stop

$854Multiple Airlines

Find Deal

Tue, Jan 13 - Sun, Jan 25

Lufthansa flights from Lisbon to Seattle

Our best Lufthansa deals on Lisbon to Seattle flight tickets

Lufthansa

Jan 15

LIS5:00 amLisbon Humberto Delgado

15h 10m

1 stop

SEA12:10 pmSeattle/Tacoma Intl

Jan 28

SEA3:10 pmSeattle/Tacoma Intl

14h 10m

1 stop

LIS1:20 pmLisbon Humberto Delgado

$842

Find similar

Lufthansa

Jan 15

LIS5:00 amLisbon Humberto Delgado

15h 10m

1 stop

SEA12:10 pmSeattle/Tacoma Intl

Jan 19

SEA2:00 pmSeattle/Tacoma Intl

16h 50m

1 stop

LIS2:50 pmLisbon Humberto Delgado

$857

Find similar

United Airlines flights from Lisbon to Seattle

Our best United Airlines deals on Lisbon to Seattle flight tickets

United Airlines

Jan 15

LIS5:00 amLisbon Humberto Delgado

15h 10m

1 stop

SEA12:10 pmSeattle/Tacoma Intl

Jan 19

SEA8:10 amSeattle/Tacoma Intl

16h 00m

2 stops

LIS8:10 amLisbon Humberto Delgado

$853

Find similar

United Airlines

Jan 15

LIS5:00 amLisbon Humberto Delgado

15h 10m

1 stop

SEA12:10 pmSeattle/Tacoma Intl

Jan 28

SEA7:00 amSeattle/Tacoma Intl

17h 10m

1 stop

LIS8:10 amLisbon Humberto Delgado

$856

Find similar

United Airlines

Nov 27

LIS11:55 amLisbon Humberto Delgado

16h 59m

1 stop

SEA8:54 pmSeattle/Tacoma Intl

Dec 11

SEA8:10 amSeattle/Tacoma Intl

18h 05m

1 stop

LIS10:15 amLisbon Humberto Delgado

$891

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Thu 1/15

9:05 am-11:54 am

2 stops34h 49m

Seattle/Tacoma Intl

Wed 1/28

2:35 pm-8:20 pm

1 stop21h 45m

$685

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Mon 1/12

5:40 pm-10:26 am

2 stops48h 46m

Seattle/Tacoma Intl

Wed 1/28

2:35 pm-8:20 pm

1 stop21h 45m

$724

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Thu 1/15

11:00 am-10:06 pm

2 stops19h 06m

Seattle/Tacoma Intl

Wed 1/28

3:10 pm-10:55 pm

2 stops23h 45m

$748

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Tue 1/13

5:40 pm-10:26 am

2 stops48h 46m

Seattle/Tacoma Intl

Wed 1/21

2:35 pm-8:20 pm

1 stop21h 45m

$755

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Thu 1/15

11:00 am-7:17 pm

1 stop16h 17m

Seattle/Tacoma Intl

Wed 1/28

2:35 pm-8:20 pm

1 stop21h 45m

$775

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Mon 1/12

10:00 pm-9:08 pm

2 stops31h 08m

Seattle/Tacoma Intl

Sat 1/24

2:35 pm-8:20 pm

1 stop21h 45m

$813

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Mon 1/12

2:00 pm-10:01 am

2 stops52h 01m

Seattle/Tacoma Intl

Sun 1/25

10:09 am-9:55 am

1 stop15h 46m

$841

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Thu 1/15

5:00 am-12:10 pm

1 stop15h 10m

Seattle/Tacoma Intl

Wed 1/28

3:10 pm-1:20 pm

1 stop14h 10m

$842

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Thu 1/15

5:00 am-12:10 pm

1 stop15h 10m

Seattle/Tacoma Intl

Wed 1/28

7:00 am-8:10 am

1 stop17h 10m

$853

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Tue 1/13

2:05 pm-7:17 pm

2 stops37h 12m

Seattle/Tacoma Intl

Sun 1/25

10:09 am-11:40 am

1 stop17h 31m

$854

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 typical price of a round-trip flight between Lisbon and Seattle?

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 $800. If you don’t want to visit Seattle in April, then you should wait until May to fly from Lisbon, when ticket prices are also cheap, with an average price of $801.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Lisbon is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $800. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Saturday is the most expensive day to depart from Lisbon because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,074.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Lisbon in the evening is the least expensive time of day to depart. momondo users have found prices as low as $718 when looking at flights departing in the evening. Flights to Seattle are more costly in the morning, with an average ticket price of $873. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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 $949 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 $792 on momondo.

How have Lisbon to Seattle flight prices changed over time?

As of November 2025, prices for Lisbon to Seattle flights are approximately 4% cheaper 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

Direct flights	None

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

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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 15h 10m.
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 November 2025.
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 33% of all bookings. The subsequent popular airlines are Delta at 26%, Air France at 23%, and United Airlines at 19%.

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 7,535 reviews	Search British Airways flights
United Airlines	PriceFrom $738	Free Cancellation	Rating 7.4 9,036 reviews	Search United Airlines flights
Air France	PriceFrom $762	Free Cancellation	Rating 7.4 1,493 reviews	Search Air France flights
Delta	PriceFrom $775	Free Cancellation	Rating 7.9 8,000 reviews	Search Delta flights

Tacoma

Leavenworth

SeaTac

Ocean Shores

Renton

Olympia

Lynnwood

Kent

Puyallup

Marysville

Redmond

Tukwila

Lakewood

Federal Way

Fife

Cle Elum

Centralia

Kirkland

Westport

Shoreline

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.

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Cheap flights from Lisbon to Seattle from $380

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 2/4. 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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Lufthansa flights from Lisbon to Seattle

Our best Lufthansa deals on Lisbon to Seattle flight tickets

United Airlines flights from Lisbon to Seattle

Our best United Airlines deals on Lisbon to Seattle flight tickets

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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

What is the typical price of a round-trip flight between Lisbon and Seattle?

What is the cheapest month to fly to Seattle?

What is the cheapest day to depart on your flight to Seattle?

What is the cheapest time of day to depart on your flight 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 November 2025, prices for Lisbon to Seattle flights are approximately 4% cheaper when compared to flights at the same time last year.

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?

London (LHR) was the most common stop: 60% 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 London (LHR) offer the lowest average round-trip price of $807.

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

Flights connecting via London (LHR) have the shortest average one-way travel time: 14h 58m.

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

London (LHR) has the shortest average layover time for this route: 1h 57m.

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

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