What are the cheapest airlines flying from Seattle to Lisbon round-trip?

Currently priced at C$ 749, United Airlines will fly you from Seattle to Lisbon and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from British Airways and Delta - these airlines can fly you to your destination from C$ 783 and C$ 812, respectively. These flights start at 43% lower than the current average price 3 months from now.

What are the cheapest airlines to fly from Seattle to Lisbon one-way?

The cheapest airlines for a one-way flight from Seattle to Lisbon are United Airlines (C$ 488), Lufthansa (C$ 777), and Delta (C$ 1,039).

What is the cheapest day to fly from Seattle to Lisbon?

Travelers seeking maximum savings on their Seattle to Lisbon flight should consider departing on Wednesday mornings when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

What is the cheapest day to fly round-trip from Seattle to Lisbon?

Leaving on a Friday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 30% on the overall cost on flights from Seattle to Lisbon.

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

Travellers have found it’s best to book a flight 18 days in advance to save up to 37% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 18 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Seattle to Lisbon 1-2 weeks in advance for as low as C$ 1,025, or C$ 1,329 for flights within the next 24 hours.

What is the cheapest month to fly from Seattle to Lisbon?

Flights from Seattle to Lisbon lean towards being more expensive in June. Prices are generally better when you fly from Seattle to Lisbon in January, with the cheapest ticket starting at C$ 774.

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 vacation 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.

C$ 488+ Flights from Seattle to Lisbon

Cheap flight deals from Seattle to Lisbon

Round-trip from	C$ 749
One-way from	C$ 488
Popular in	June
Cheapest in	January
Average price	C$ 1,870

United Airlines
30/10-8/11
4 total stops
42h 04m total
Seattle to Lisbon

Search Deals

United Airlines
6/12
3 total stops
19h 12m total
Seattle to Lisbon

Search Deals

Highest demand for flights based on searches. 17% potential increase in price (C$ 387 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (C$ 70 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in June 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 12 June 2025.

Thu 30/105:05 a.m.SEA - LIS

2 stops20h 05mUnited Airlines

Sat 8/1111:00 a.m.LIS - SEA

2 stops21h 59mUnited Airlines

Deal found 12/6C$ 749

Wed 22/101:30 p.m.SEA - LIS

1 stop16h 35mBritish Airways

Sun 9/1110:45 a.m.LIS - SEA

2 stops20h 19mBritish Airways

Deal found 12/6C$ 783

Fri 24/106:05 a.m.SEA - LIS

2 stops21h 10mDelta

Fri 14/115:30 a.m.LIS - SEA

1 stop15h 45mDelta

Deal found 12/6C$ 812

Wed 1/104:20 p.m.SEA - LIS

2 stops21h 30mMultiple Airlines

Tue 14/106:20 p.m.LIS - SEA

2 stops27h 40mMultiple Airlines

Deal found 12/6C$ 909

Thu 10/712:30 p.m.SEA - LIS

1 stop19h 00mTurkish Airlines

Wed 23/75:55 a.m.LIS - SEA

1 stop36h 40mTurkish Airlines

Deal found 11/6C$ 952

Fri 24/102:20 p.m.SEA - LIS

1 stop23h 45mLufthansa

Thu 30/1011:00 a.m.LIS - SEA

2 stops34h 26mLufthansa

Deal found 11/6C$ 957

Fri 24/101:45 p.m.SEA - LIS

2 stops25h 35mSWISS

Thu 30/1012:35 p.m.LIS - SEA

2 stops41h 40mSWISS

Deal found 11/6C$ 964

Tue 7/105:30 a.m.SEA - LIS

2 stops19h 50mAir Canada

Fri 17/107:30 a.m.LIS - SEA

2 stops19h 06mAir Canada

Deal found 10/6C$ 1,112

Wed 22/102:00 p.m.SEA - LIS

2 stops22h 40mScandinavian Airlines

Mon 27/104:55 p.m.LIS - SEA

2 stops36h 53mScandinavian Airlines

Deal found 11/6C$ 1,258

Best flights from Seattle to Lisbon
Discover carefully curated flight deals from Seattle to Lisbon that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 12 June 2025.

Thu 30/105:05 a.m.SEA - LIS

2 stops20h 05mUnited Airlines

Sat 8/1111:00 a.m.LIS - SEA

2 stops21h 59mUnited Airlines

Deal found 12/6C$ 749

Wed 22/101:30 p.m.SEA - LIS

1 stop16h 35mBritish Airways

Sun 9/1110:45 a.m.LIS - SEA

2 stops20h 19mBritish Airways

Deal found 12/6C$ 783

Fri 24/106:05 a.m.SEA - LIS

2 stops21h 10mDelta

Fri 14/115:30 a.m.LIS - SEA

1 stop15h 45mDelta

Deal found 12/6C$ 812

Wed 1/104:20 p.m.SEA - LIS

2 stops21h 30mMultiple Airlines

Tue 14/106:20 p.m.LIS - SEA

2 stops27h 40mMultiple Airlines

Deal found 12/6C$ 909

Thu 10/712:30 p.m.SEA - LIS

1 stop19h 00mTurkish Airlines

Wed 23/75:55 a.m.LIS - SEA

1 stop36h 40mTurkish Airlines

Deal found 11/6C$ 952

Fri 24/102:20 p.m.SEA - LIS

1 stop23h 45mLufthansa

Tue 28/1011:00 a.m.LIS - SEA

2 stops38h 26mLufthansa

Deal found 11/6C$ 957

Fri 24/101:45 p.m.SEA - LIS

2 stops25h 35mSWISS

Thu 30/1012:35 p.m.LIS - SEA

2 stops41h 40mSWISS

Deal found 11/6C$ 964

Tue 7/105:30 a.m.SEA - LIS

2 stops19h 50mAir Canada

Fri 17/107:30 a.m.LIS - SEA

2 stops19h 06mAir Canada

Deal found 10/6C$ 1,112

Wed 22/102:00 p.m.SEA - LIS

2 stops22h 40mScandinavian Airlines

Mon 27/104:55 p.m.LIS - SEA

2 stops36h 53mScandinavian Airlines

Deal found 11/6C$ 1,258

Last-minute flights from Seattle to Lisbon
Discover last-minute flight deals from Seattle to Lisbon. Data last updated 12 June 2025 and is based on user searches.

Wed 18/610:00 a.m.SEA - LIS

2 stops15h 20mLufthansa

Sun 29/65:05 a.m.LIS - SEA

1 stop15h 20mLufthansa

Deal found 11/6C$ 2,754

Fri 20/64:00 p.m.SEA - LIS

2 stops20h 20mMultiple Airlines

Fri 27/66:55 a.m.LIS - SEA

1 stop14h 55mMultiple Airlines

Deal found 12/6C$ 2,427

Fri 20/63:45 p.m.SEA - LIS

2 stops16h 45mIcelandair

Sun 13/711:15 p.m.LIS - SEA

1 stop29h 25mIcelandair

Deal found 11/6C$ 2,886

Sat 21/610:15 p.m.SEA - LIS

1 stop28h 15mUnited Airlines

Tue 1/712:55 p.m.LIS - SEA

1 stop30h 05mUnited Airlines

Deal found 12/6C$ 2,618

Mon 23/611:30 p.m.SEA - LIS

2 stops33h 00mIcelandair

Thu 17/710:20 p.m.LIS - SEA

1 stop21h 05mIcelandair

Deal found 12/6C$ 2,177

Fri 27/61:30 p.m.SEA - LIS

1 stop13h 45mDelta

Fri 11/75:40 a.m.LIS - SEA

2 stops21h 20mDelta

Deal found 11/6C$ 1,840

Mon 7/72:55 p.m.SEA - LIS

2 stops36h 10mLufthansa

Wed 23/75:05 a.m.LIS - SEA

1 stop14h 50mLufthansa

Deal found 11/6C$ 1,209

Mon 7/72:55 p.m.SEA - LIS

2 stops34h 25mAir Canada

Fri 25/712:55 p.m.LIS - SEA

2 stops37h 41mAir Canada

Deal found 11/6C$ 1,218

Mon 7/74:25 p.m.SEA - LIS

1 stop14h 20mMultiple Airlines

Thu 24/75:05 a.m.LIS - SEA

1 stop14h 50mMultiple Airlines

Deal found 11/6C$ 1,280

Tue 8/71:18 p.m.SEA - LIS

2 stops18h 12mBritish Airways

Sat 26/711:00 a.m.LIS - SEA

1 stop15h 20mBritish Airways

Deal found 12/6C$ 5,461

Wed 9/71:45 p.m.SEA - LIS

2 stops25h 35mSWISS

Fri 25/75:55 a.m.LIS - SEA

2 stops20h 41mSWISS

Deal found 11/6C$ 1,236

Thu 10/712:30 p.m.SEA - LIS

1 stop19h 00mTurkish Airlines

Wed 23/75:55 a.m.LIS - SEA

1 stop36h 40mTurkish Airlines

Deal found 11/6C$ 952

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 12 June 2025.

Sat 6/127:03 a.m.SEA - LIS

3 stops19h 12mUnited Airlines

Deal found 10/6C$ 488

Wed 1/1010:00 a.m.SEA - LIS

2 stops15h 20mLufthansa

Deal found 11/6C$ 777

Fri 3/1012:40 a.m.SEA - LIS

2 stops23h 20mDelta

Deal found 11/6C$ 1,039

Tue 12/812:20 a.m.SEA - LIS

2 stops25h 35mMultiple Airlines

Deal found 11/6C$ 5,591

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Thu 30/10

5:05 a.m.-8:10 a.m.

2 stops20h 05m

Lisbon Humberto Delgado

Sat 8/11

11:00 a.m.-12:59 a.m.

2 stops21h 59m

C$ 749

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Wed 22/10

1:30 p.m.-2:05 p.m.

1 stop16h 35m

Lisbon Humberto Delgado

Sun 9/11

10:45 a.m.-11:04 p.m.

2 stops20h 19m

C$ 783

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Fri 24/10

6:05 a.m.-11:15 a.m.

2 stops21h 10m

Lisbon Humberto Delgado

Fri 14/11

5:30 a.m.-1:15 p.m.

1 stop15h 45m

C$ 812

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Wed 1/10

4:20 p.m.-9:50 p.m.

2 stops21h 30m

Lisbon Humberto Delgado

Tue 14/10

6:20 p.m.-2:00 p.m.

2 stops27h 40m

C$ 909

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Thu 10/7

12:30 p.m.-3:30 p.m.

1 stop19h 00m

Lisbon Humberto Delgado

Wed 23/7

5:55 a.m.-10:35 a.m.

1 stop36h 40m

C$ 952

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Fri 24/10

2:20 p.m.-10:05 p.m.

1 stop23h 45m

Lisbon Humberto Delgado

Thu 30/10

11:00 a.m.-2:26 p.m.

2 stops34h 26m

C$ 957

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Fri 24/10

1:45 p.m.-11:20 p.m.

2 stops25h 35m

Lisbon Humberto Delgado

Thu 30/10

12:35 p.m.-11:15 p.m.

2 stops41h 40m

C$ 964

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Tue 7/10

5:30 a.m.-9:20 a.m.

2 stops19h 50m

Lisbon Humberto Delgado

Fri 17/10

7:30 a.m.-6:36 p.m.

2 stops19h 06m

C$ 1,112

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Wed 22/10

2:00 p.m.-8:40 p.m.

2 stops22h 40m

Lisbon Humberto Delgado

Mon 27/10

4:55 p.m.-10:48 p.m.

2 stops36h 53m

C$ 1,258

SeattleLisbon

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Sat 6/12

7:03 a.m.-10:15 a.m.

3 stops19h 12m

C$ 488

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/6

Showing 1-10 of 13 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 round-trip 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?

Booking 17 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Lisbon. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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 C$ 482). Flying from Seattle to Lisbon in July is currently the most expensive (average of C$ 775). 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.

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

When flying from Seattle to Lisbon, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 6% versus a flight at noon.

Rainfall in Lisbon by month

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

Temperature in Lisbon by month

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).

Reviews of airlines servicing Lisbon

See what other customers who have flown with Delta, SWISS and United Airlines from Seattle to Lisbon have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,950 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,950 reviews

Delta

8.0

Very good

7,950 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

SWISS

7.5

Good

1,623 reviews

Delta

8.0

Very good

7,950 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,790 reviews

Delta

8.0

Very good

7,950 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Turkish Airlines

7.3

Good

3,848 reviews

Delta

8.0

Very good

7,950 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Scandinavian Airlines

7.3

Good

1,387 reviews

Delta

8.0

Very good

7,950 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

What are the cheapest airlines flying from Seattle to Lisbon round-trip?
Currently priced at C$ 749, United Airlines will fly you from Seattle to Lisbon and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from British Airways and Delta - these airlines can fly you to your destination from C$ 783 and C$ 812, respectively. These flights start at 43% lower than the current average price 3 months from now.
What are the cheapest airlines to fly from Seattle to Lisbon one-way?
The cheapest airlines for a one-way flight from Seattle to Lisbon are United Airlines (C$ 488), Lufthansa (C$ 777), and Delta (C$ 1,039).
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 vacation 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 C$ 482). Flying from Seattle to Lisbon in July is currently the most expensive (average of C$ 775). 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

Sintra

Costa da Caparica

Beja

Óbidos

Setúbal

Browse thousands of different options on Cheapflights for your next trip

Complete your trip

Lisbon car rentals

Lisbon Humberto Delgado Airport car rentals

Porto car rentals

Ponta Delgada car rentals

Faro car rentals

Funchal car rentals

Albufeira car rentals

Lagos car rentals

Angra do Heroísmo car rentals

Portimão car rentals

Horta car rentals

Madeira car rentals

Other flights to Lisbon

Top airline flying from Seattle to Lisbon

Airline	Cheapest	Average	Flexibility	On-time
British Airways	CheapestC$ 930	AverageC$ 1,352	FlexibilityNo cancel fee	On-time70%	Search British Airways flights

Fly with Cheapflights

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

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Lisbon from Seattle today with Cheapflights!

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

Cheapflights simply makes it quick and affordable to book flights from Seattle to Lisbon by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Seattle to Lisbon flexibly with Cheapflights today.

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

Yes, Cheapflights offers price alerts on Seattle to Lisbon flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Seattle to Lisbon from C$ 488

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 6/12. 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 12 June 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 12 June 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?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Lisbon. Price data was last updated on 9 June 2025.

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

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

Find hourly flight availability from Seattle to Lisbon. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 12 June 2025.

Rainfall in Lisbon by month

Plan your trip to Lisbon by taking into account the average rainfall totals by month.

Temperature in Lisbon by month

Plan your trip to Lisbon by taking into account the average temperature totals by month.

Reviews of airlines servicing Lisbon

Get insights into the airlines that provide service to Lisbon. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Lisbon. Reviews last updated 12 June 2025.

See what other customers who have flown with Delta, SWISS and United Airlines from Seattle to Lisbon have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

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.

What are the cheapest airlines flying from Seattle to Lisbon round-trip?

What are the cheapest airlines to fly from Seattle to Lisbon one-way?

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 Seattle?

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 rental and/or hotel reservation to your travel itinerary.

Top airline flying from Seattle to Lisbon

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers 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?

100% Free

Book with Flexibility

Travel Smart

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 12 June 2025.