How long is the flight from Seattle to Lisbon?

For as low as £611, United Airlines can have you in Lisbon from Seattle in 16h 01m. The distance from Seattle to Lisbon is about 5199 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

In terms of precipitation, rainfall in Lisbon ranges from 6.0 - 122.0 inches 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.

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).

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

When flying from Seattle to Lisbon, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 holiday 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.

£289+ Cheap Flights from Seattle to Lisbon

Cheap flight deals from Seattle to Lisbon

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 5 October 2026.

Thu 19/1113:50 -

1 stop17h 00m

Thu 26/1105:00 -

1 stop15h 00m

Deal found 5/10£606

Wed 9/1214:50 -

1 stop24h 40m

Sat 19/1214:20 -

1 stop30h 40m

Deal found 1/10£610

Sun 15/1108:09 -

2 stops16h 01m

Sun 22/1112:20 -

2 stops18h 55m

Deal found 1/10£611

Sat 7/1122:59 -

1 stop25h 01m

Mon 16/1112:25 -

1 stop33h 25m

Deal found 2/10£612

Mon 7/1207:00 -

1 stop17h 10m

Sat 19/1211:20 -

1 stop17h 39m

Deal found 1/10£615

Thu 10/1216:05 -

1 stop15h 05m

Tue 22/1210:00 -

1 stop18h 05m

Deal found 1/10£615

Sun 15/1107:38 -

2 stops19h 47m

Sun 22/1105:30 -

2 stops19h 23m

Deal found 1/10£616

Thu 10/1213:40 -

1 stop14h 25m

Mon 21/1218:35 -

1 stop24h 50m

Deal found 1/10£618

Sat 5/1222:55 -

1 stop25h 05m

Sun 20/1210:00 -

1 stop18h 05m

Deal found 1/10£621

Thu 19/1108:40 -

2 stops22h 10m

Thu 26/1105:00 -

1 stop15h 00m

Deal found 5/10£622

Wed 28/1009:05 -

2 stops18h 15m

Wed 18/1105:00 -

1 stop15h 00m

Deal found 5/10£624

Thu 24/1216:10 -

1 stop15h 00m

Wed 13/111:30 -

1 stop32h 19m

Deal found 3/10£625

Find flight deals from Seattle to Lisbon

Round-trip from	£610
One-way from	£289
Popular in	June
Cheapest in	January
Average price	£658

Lufthansa
9/12-19/12
2 total stops
55h 20m total
Seattle to Lisbon

Search Deals

British Airways
17/3-31/12
1 total stop
15h 00m total
Seattle to Lisbon

Search Deals

Highest demand for flights based on searches. 26% potential increase in price (£179 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£19 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Fastest return journey

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Wed 17/3

19:45-17:45

1 stop15h 00m

Lisbon Humberto Delgado

Wed 31/12

00:00-15:00

Nonstop0h 00m

£289

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Thu 21/1

08:30-09:20

3 stops40h 50m

Lisbon Humberto Delgado

Wed 31/12

00:00-15:00

Nonstop0h 00m

£334

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Mon 9/11

18:45-21:55

1 stop19h 10m

Lisbon Humberto Delgado

Wed 31/12

00:00-15:00

Nonstop0h 00m

£347

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Sat 14/11

23:17-08:10

1 stop24h 53m

Lisbon Humberto Delgado

Wed 31/12

00:00-15:00

Nonstop0h 00m

£350

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Sun 28/2

19:32-08:10

3 stops28h 38m

Lisbon Humberto Delgado

Wed 31/12

00:00-15:00

Nonstop0h 00m

£356

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Sun 27/12

23:20-08:00

1 stop24h 40m

Lisbon Humberto Delgado

Wed 31/12

00:00-15:00

Nonstop0h 00m

£448

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Wed 23/12

21:25-08:00

1 stop26h 35m

Lisbon Humberto Delgado

Wed 31/12

00:00-15:00

Nonstop0h 00m

£461

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Sun 15/11

08:09-08:10

2 stops16h 01m

Lisbon Humberto Delgado

Sun 22/11

12:20-23:15

2 stops18h 55m

£611

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Sun 21/2

07:30-12:05

2 stops20h 35m

Lisbon Humberto Delgado

Sat 27/2

18:45-09:42

2 stops22h 57m

£619

SeattleLisbon

SEA Seattle/Tacoma Intl - LIS Lisbon Humberto Delgado

SEALIS

Seattle/Tacoma Intl

Sun 21/2

18:45-21:45

1 stop19h 00m

Lisbon Humberto Delgado

Sat 27/2

12:55-16:50

1 stop35h 55m

£624

Flights are sorted by cheapest return flights first.

Deals found on 1/10

Showing 1-10 of 20 resultsSorted by cheapest first

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.

SEA-LIS

Estimated return 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?

The price you pay for your flight from Seattle to Lisbon may vary depending on when you book. For the best chance of a lower fare, look to book 80 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 £372). Flying from Seattle to Lisbon in June is currently the most expensive (average of £935). 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.

How much does it cost for a return flight from Seattle to Lisbon?

Airfare is typical for this route at the moment.

Seattle to Lisbon flights typically cost between £595 and £760 in November.
The cheapest return price found within the last 5 days was £606 on Lufthansa (19 Nov–26 Nov).

Related info for your journey

How long is the flight from Seattle to Lisbon?
For as low as £611, United Airlines can have you in Lisbon from Seattle in 16h 01m. The distance from Seattle to Lisbon is about 5199 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
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 holiday 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 £372). Flying from Seattle to Lisbon in June is currently the most expensive (average of £935). 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.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Seattle to Lisbon.

Can Cheapflights find flights from Seattle to Lisbon with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Seattle to Lisbon, users can toggle the no change fees filter when performing a flight search.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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Cheap flights from Seattle to Lisbon from £289

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 17/3. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap 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 5 October 2026.

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 5 October 2026.

Best flights from Seattle to LisbonDiscover carefully curated flight deals from Seattle to Lisbon that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 5 October 2026.

Discover carefully curated flight deals from Seattle to Lisbon that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 5 October 2026.

Last-minute flights from Seattle to LisbonDiscover last-minute flight deals from Seattle to Lisbon. Data last updated 5 October 2026 and is based on user searches.

Discover last-minute flight deals from Seattle to Lisbon. Data last updated 5 October 2026 and is based on user searches.

One-way flights from Seattle to LisbonSearch for one-way flight options from Seattle to Lisbon. Find affordable one-way fares based on user searches. Data last updated 5 October 2026.

Search for one-way flight options from Seattle to Lisbon. Find affordable one-way fares based on user searches. Data last updated 5 October 2026.

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

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

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

The price you pay for your flight from Seattle to Lisbon may vary depending on when you book. For the best chance of a lower fare, look to book 80 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

How much does it cost for a return flight from Seattle to Lisbon?

Airfare is typical for this route at the moment.

Seattle to Lisbon flights typically cost between £595 and £760 in November.The cheapest return price found within the last 5 days was £606 on Lufthansa (19 Nov–26 Nov).

Related info for your journey

How long is the flight from Seattle to Lisbon?

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?

Travelling to a place near Lisbon?

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Search flights from Seattle to Lisbon by cabin class

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Other flights to Lisbon

Explore flights to Lisbon departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 5 October 2026.

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

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

Can Cheapflights find flights from Seattle to Lisbon with no change fees?

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

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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 5 October 2026.

Best flights from Seattle to Lisbon
Discover carefully curated flight deals from Seattle to Lisbon that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 5 October 2026.

Last-minute flights from Seattle to Lisbon
Discover last-minute flight deals from Seattle to Lisbon. Data last updated 5 October 2026 and is based on user searches.

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 5 October 2026.

Seattle to Lisbon flights typically cost between £595 and £760 in November.
The cheapest return price found within the last 5 days was £606 on Lufthansa (19 Nov–26 Nov).