How long is the flight from Seattle to Lisbon?

For as low as £459, Delta can have you in Lisbon from Seattle in 20h 20m. 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.

£262+ Flights from Seattle to Lisbon

Cheap flight deals from Seattle to Lisbon

Round-trip from	£440
One-way from	£262
Popular in	June
Cheapest in	January
Average price	£646

United Airlines
10/1-22/1
5 total stops
38h 58m total
Seattle to Lisbon

Search Deals

United Airlines
10/1
3 total stops
19h 10m total
Seattle to Lisbon

Search Deals

Highest demand for flights based on searches. 16% potential increase in price (£103 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 September 2025

Search Deals

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 17 September 2025.

Wed 15/1015:28SEA - LIS

2 stops33h 52mUnited Airlines

Wed 22/1005:05LIS - SEA

2 stops21h 40mUnited Airlines

Deal found 17/9£443

Wed 15/1019:37SEA - LIS

2 stops29h 43mUnited Airlines

Wed 29/1011:55LIS - SEA

2 stops28h 55mUnited Airlines

Deal found 16/9£451

Fri 17/1013:30SEA - LIS

1 stop20h 20mDelta

Thu 30/1005:30LIS - SEA

1 stop13h 55mDelta

Deal found 15/9£452

Fri 26/1218:50SEA - LIS

1 stop31h 05mBritish Airways

Fri 9/107:05LIS - SEA

1 stop17h 50mBritish Airways

Deal found 17/9£453

Sat 13/1207:00SEA - LIS

2 stops17h 10mUnited Airlines

Sun 21/1210:50LIS - SEA

1 stop19h 26mUnited Airlines

Deal found 16/9£455

Tue 4/1114:00SEA - LIS

1 stop16h 30mLufthansa

Sun 23/1112:15LIS - SEA

1 stop31h 55mLufthansa

Deal found 16/9£458

Thu 9/1013:30SEA - LIS

1 stop17h 20mDelta

Thu 20/1105:30LIS - SEA

2 stops21h 09mDelta

Deal found 16/9£459

Fri 26/1218:50SEA - LIS

1 stop31h 05mBritish Airways

Sat 10/112:55LIS - SEA

1 stop36h 00mBritish Airways

Deal found 17/9£460

Sun 28/1218:50SEA - LIS

1 stop18h 55mBritish Airways

Mon 5/110:35LIS - SEA

1 stop32h 55mBritish Airways

Deal found 17/9£475

Sat 25/1007:19SEA - LIS

1 stop18h 41mMultiple Airlines

Sat 1/1118:30LIS - SEA

1 stop26h 50mMultiple Airlines

Deal found 16/9£477

Thu 16/1014:20SEA - LIS

1 stop23h 45mLufthansa

Fri 24/1005:05LIS - SEA

1 stop14h 50mLufthansa

Deal found 14/9£481

Sun 19/1007:19SEA - LIS

1 stop16h 41mDelta

Mon 27/1005:30LIS - SEA

2 stops20h 30mDelta

Deal found 14/9£485

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 17 September 2025.

Fri 26/1218:50SEA - LIS

1 stop31h 05mBritish Airways

Mon 5/118:35LIS - SEA

1 stop24h 55mBritish Airways

Deal found 17/9£453

Sat 25/1007:19SEA - LIS

1 stop18h 41mMultiple Airlines

Sat 1/1118:30LIS - SEA

1 stop26h 50mMultiple Airlines

Deal found 16/9£477

Sat 1/1123:59SEA - LIS

2 stops27h 16mUnited Airlines

Sat 8/1105:00LIS - SEA

2 stops40h 20mUnited Airlines

Deal found 16/9£485

Wed 1/1009:40SEA - LIS

2 stops21h 10mDelta

Thu 9/1010:00LIS - SEA

1 stop18h 16mDelta

Deal found 15/9£502

Fri 26/1218:50SEA - LIS

1 stop31h 05mBritish Airways

Tue 6/116:00LIS - SEA

1 stop32h 55mBritish Airways

Deal found 17/9£490

Sat 21/208:17SEA - LIS

1 stop17h 58mUnited Airlines

Sat 28/205:00LIS - SEA

1 stop15h 10mUnited Airlines

Deal found 15/9£504

Mon 6/1009:46SEA - LIS

2 stops21h 04mDelta

Tue 14/1005:40LIS - SEA

2 stops22h 36mDelta

Deal found 16/9£510

Sat 1/1123:59SEA - LIS

2 stops27h 16mMultiple Airlines

Sat 8/1114:10LIS - SEA

1 stop31h 10mMultiple Airlines

Deal found 16/9£511

Thu 25/1218:50SEA - LIS

1 stop31h 15mBritish Airways

Fri 9/107:05LIS - SEA

1 stop17h 50mBritish Airways

Deal found 17/9£512

Last-minute flights from Seattle to Lisbon
Discover last-minute flight deals from Seattle to Lisbon. Data last updated 17 September 2025 and is based on user searches.

Wed 1/1009:40SEA - LIS

2 stops21h 10mDelta

Thu 9/1010:00LIS - SEA

1 stop18h 16mDelta

Deal found 15/9£502

Mon 6/1007:50SEA - LIS

1 stop18h 55mDelta

Tue 14/1005:40LIS - SEA

2 stops22h 36mDelta

Deal found 16/9£496

Thu 9/1013:30SEA - LIS

1 stop17h 20mDelta

Thu 20/1105:30LIS - SEA

2 stops21h 09mDelta

Deal found 16/9£459

Wed 15/1015:28SEA - LIS

2 stops33h 52mUnited Airlines

Wed 22/1005:05LIS - SEA

2 stops21h 40mUnited Airlines

Deal found 17/9£443

Wed 15/1019:37SEA - LIS

2 stops29h 43mUnited Airlines

Wed 29/1011:55LIS - SEA

2 stops28h 55mUnited Airlines

Deal found 16/9£451

Thu 16/1014:20SEA - LIS

1 stop23h 45mLufthansa

Fri 24/1005:05LIS - SEA

1 stop14h 50mLufthansa

Deal found 14/9£481

Fri 17/1013:30SEA - LIS

1 stop20h 20mDelta

Thu 30/1005:30LIS - SEA

1 stop13h 55mDelta

Deal found 15/9£452

Fri 17/1013:30SEA - LIS

1 stop13h 45mDelta

Sun 9/1105:30LIS - SEA

2 stops21h 30mDelta

Deal found 16/9£486

Sun 19/1007:19SEA - LIS

1 stop16h 41mDelta

Mon 27/1005:30LIS - SEA

2 stops20h 30mDelta

Deal found 14/9£485

Sat 25/1007:19SEA - LIS

1 stop18h 41mMultiple Airlines

Sat 1/1118:30LIS - SEA

1 stop26h 50mMultiple Airlines

Deal found 16/9£477

Thu 30/1005:05SEA - LIS

2 stops22h 10mUnited Airlines

Sat 8/1105:00LIS - SEA

3 stops23h 51mUnited Airlines

Deal found 15/9£508

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 17 September 2025.

Sat 10/105:00SEA - LIS

3 stops19h 10mUnited Airlines

Deal found 15/9£262

Thu 16/1014:20SEA - LIS

1 stop23h 45mLufthansa

Deal found 14/9£265

Tue 14/1007:15SEA - LIS

1 stop18h 05mUnited Airlines

Deal found 14/9£271

Thu 30/1015:00SEA - LIS

1 stop24h 50mLufthansa

Deal found 15/9£275

Mon 3/1114:00SEA - LIS

1 stop16h 50mLufthansa

Deal found 15/9£276

Mon 13/1007:15SEA - LIS

1 stop18h 05mUnited Airlines

Deal found 17/9£277

Sat 1/1117:20SEA - LIS

3 stops33h 55mUnited Airlines

Deal found 15/9£279

Thu 30/1005:05SEA - LIS

2 stops22h 10mUnited Airlines

Deal found 15/9£280

Fri 31/1015:00SEA - LIS

1 stop24h 50mLufthansa

Deal found 15/9£292

Sat 3/123:15SEA - LIS

2 stops24h 55mUnited Airlines

Deal found 16/9£293

Sat 11/1023:10SEA - LIS

2 stops25h 10mUnited Airlines

Deal found 15/9£392

Fly from

Fly to

Route

Depart

Return

Price

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Fri 26/12

18:50-09:55

1 stop31h 05m

Lisbon Humberto Delgado

Mon 5/1

18:35-11:30

1 stop24h 55m

£453

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Sat 25/10

07:19-10:00

1 stop18h 41m

Lisbon Humberto Delgado

Sat 1/11

18:30-14:20

1 stop26h 50m

£477

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Sat 1/11

23:59-10:15

2 stops27h 16m

Lisbon Humberto Delgado

Sat 8/11

05:00-13:20

2 stops40h 20m

£485

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Fri 26/12

18:50-09:55

1 stop31h 05m

Lisbon Humberto Delgado

Tue 6/1

16:00-16:55

1 stop32h 55m

£490

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Wed 1/10

09:40-14:50

2 stops21h 10m

Lisbon Humberto Delgado

Thu 9/10

10:00-20:16

1 stop18h 16m

£502

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Sat 21/2

08:17-10:15

1 stop17h 58m

Lisbon Humberto Delgado

Sat 28/2

05:00-12:10

1 stop15h 10m

£504

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Mon 6/10

09:46-14:50

2 stops21h 04m

Lisbon Humberto Delgado

Tue 14/10

05:40-20:16

2 stops22h 36m

£510

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Sat 1/11

23:59-10:15

2 stops27h 16m

Lisbon Humberto Delgado

Sat 8/11

14:10-13:20

1 stop31h 10m

£511

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Thu 25/12

18:50-10:05

1 stop31h 15m

Lisbon Humberto Delgado

Fri 9/1

07:05-16:55

1 stop17h 50m

£512

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Sat 10/1

05:00-08:10

3 stops19h 10m

£262

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Showing 1-10 of 17 results

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 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 29 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 £101). Flying from Seattle to Lisbon in August is currently the most expensive (average of £274). 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.

Related info for your journey

How long is the flight from Seattle to Lisbon?
For as low as £459, Delta can have you in Lisbon from Seattle in 20h 20m. 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 £101). Flying from Seattle to Lisbon in August is currently the most expensive (average of £274). 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

Madeira

Setúbal

Oeiras

Fátima

Almada

Estoril

Beja

Sintra

Costa da Caparica

Óbidos

Nazaré

Sesimbra

Peniche

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Complete your trip

Lisbon car hire

Lisbon Humberto Delgado Airport car hire

Ponta Delgada car hire

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

Cheapflights helps you search for flights from Seattle to Lisbon via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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 £262

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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Seattle to Lisbon

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 17 September 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 17 September 2025.

Cheapflights Fare Finder

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

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?

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?

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?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Complete your trip

Complete your trip to Lisbon by adding a car hire and/or hotel booking to your travel itinerary.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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 17 September 2025.