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SEA - LIS

C$ 574 Find cheap flights from Seattle to Lisbon

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Lisbon departing on 3/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Fri 7/6
Fri 14/6

Search hundreds of travel sites at once for deals on flights to Lisbon

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Lisbon, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Lisbon, as well as popular online travel agencies
In the last 7 days, travellers have searched 43,968,530 times on KAYAK, and here is why:

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Cheap flight deals from Seattle to Lisbon (SEA-LIS)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Lisbon that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
6:45 p.m. - 5:45 p.m.SEA-LIS
15h 00m1 stop
6:35 p.m. - 11:25 a.m.LIS-SEA
24h 50m1 stop
C$ 915British Airways
Find Deal
Sun, 3 Nov - Mon, 11 Nov
2:35 p.m. - 12:10 p.m.SEA-LIS
14h 35m1 stop
8:45 a.m. - 9:43 p.m.LIS-SEA
20h 58m1 stop
C$ 972British Airways
Find Deal
Thu, 31 Oct - Thu, 7 Nov
3:10 p.m. - 9:20 a.m.SEA-LIS
34h 10m2 stops
11:25 a.m. - 2:34 p.m.LIS-SEA
35h 09m2 stops
C$ 979Lufthansa
Find Deal
Mon, 19 Aug - Thu, 29 Aug
7:20 a.m. - 10:45 a.m.SEA-LIS
19h 25m1 stop
5:40 a.m. - 4:31 p.m.LIS-SEA
18h 51m2 stops
C$ 1,013Delta
Find Deal
Mon, 5 Aug - Fri, 23 Aug
10:40 a.m. - 9:20 a.m.SEA-LIS
38h 40m2 stops
11:25 a.m. - 2:34 p.m.LIS-SEA
35h 09m2 stops
C$ 1,048Lufthansa
Find Deal
Tue, 13 Aug - Mon, 26 Aug
6:30 a.m. - 8:00 a.m.SEA-LIS
18h 30m2 stops
10:00 a.m. - 10:20 p.m.LIS-SEA
20h 20m1 stop
C$ 1,068Delta
Find Deal
Thu, 31 Oct - Fri, 8 Nov
7:00 a.m. - 10:30 a.m.SEA-LIS
19h 30m2 stops
12:20 p.m. - 9:49 a.m.LIS-SEA
29h 29m2 stops
C$ 1,204United Airlines
Find Deal
Wed, 17 Jul - Wed, 24 Jul
7:40 a.m. - 9:20 a.m.SEA-LIS
17h 40m1 stop
12:50 p.m. - 6:52 p.m.LIS-SEA
38h 02m2 stops
C$ 1,238United Airlines
Find Deal
Thu, 29 Aug - Tue, 17 Sep
6:15 p.m. - 5:55 p.m.SEA-LIS
15h 40m1 stop
12:10 p.m. - 10:12 p.m.LIS-SEA
42h 02m2 stops
C$ 1,365Air France
Find Deal
Sun, 14 Jul - Mon, 22 Jul
11:15 a.m. - 5:55 p.m.SEA-LIS
22h 40m2 stops
6:50 p.m. - 11:20 a.m.LIS-SEA
24h 30m1 stop
C$ 1,368Air France
Find Deal
Tue, 17 Sep - Mon, 30 Sep

Flights from Seattle to Lisbon - Travel Insights & Trends

Get data-powered insights and trends into flights from Seattle to Lisbon to help you find the cheapest flights, the best time to fly and much more.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Seattle to Lisbon, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Seattle to Lisbon is February, where tickets cost C$ 990 on average. On the other hand, the most expensive months are June and May, where the average cost of tickets is C$ 2,110 and C$ 1,899 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Seattle to Lisbon, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Seattle to Lisbon, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 37 days before departure.

Which airlines provide the cheapest flights from Seattle to Lisbon?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The cheapest return flight ticket from Seattle to Lisbon found by KAYAK users in the last 72 hours was for C$ 915 on British Airways, followed by Lufthansa (C$ 979). One-way flight deals have also been found from as low as C$ 902 on United Airlines and from C$ 5,563 on KLM.

Good to know

Low season

January

High season

September

Cheapest flight

C$ 574
Best time to beat the crowds (31% less expensive on average)
Most popular time to fly (1% more expensive on average)
Flight from Seattle to Lisbon

When to book flights from Seattle to Lisbon

Are your dates flexible? Find out the best times to travel from Seattle to Lisbon based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Seattle to Lisbon

  • How early should I get to SEA on the date I’m supposed to travel?

    On the date you’re supposed to fly to Lisbon from Seattle, it’s in your best interest to reach SEA at least 2h ahead of your flight. Getting to this airport this early will give you adequate time to go through the airport’s time-consuming checkpoints and check out the interesting sites available in its terminals.

  • Does SEA have a spa?

    If you’d like to visit a spa while waiting for your flight at SEA, you’re in luck, as this airport is home to the fabulous Terminal Gateway Spa. Situated a short distance from Gate A5, this spa features exceptional professionals. Given that it offers its services at affordable rates, you won’t incur an exaggerated bill at this spa.

  • Can I leave my luggage at LIS?

    LIS has a luggage storage facility. Located next to car park P2, this facility offers secure storage services at affordable rates. It’s worth noting that as it is usually open 24/7, you can pick up your luggage at this facility whenever you feel like it.

  • Where can I shower at LIS?

    At LIS, you can shower at either ANA Lounge, located on the 6th floor of Terminal 1, or the Airport Business Center, near check-in desks 14 to 36 in Terminal 1. Please note that to gain entry to either, you’ll have to pay an entry fee.

  • What is the cheapest flight from Seattle to Lisbon?

    In the last 3 days, the lowest price for a flight from Seattle to Lisbon was C$ 419 for a one-way ticket and C$ 668 for a round-trip.

  • Which aircraft models fly most regularly from Seattle to Lisbon?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Seattle to Lisbon?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Seattle and Lisbon, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Seattle to Lisbon, Air France or United Airlines?

    The two airlines most popular with KAYAK users for flights from Seattle to Lisbon are Air France and United Airlines. With an average price for the route of C$ 1,337 and an overall rating of 7.5, Air France is the most popular choice. United Airlines is also a great choice for the route, with an average price of C$ 1,124 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Seattle to Lisbon?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Lisbon.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Lisbon?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Lisbon from Seattle is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Lisbon?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Lisbon with an airline and back to Seattle with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Lisbon?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Lisbon from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from Seattle to Lisbon

  • If you are traveling to Lisbon with your kids, you should consider checking out Seattle-Tacoma International Airport’s (SEA) children’s play area. Located between the Central Terminal and Gates A, this children’s play area features a variety of toys and soft play areas for toddlers. Given that it is normally open round-the-clock, you can count on finding it open regardless of the time.
  • SEA features several nursing rooms. These nursing rooms are near Gates A9, C10, D10, D23, and N2. As they all feature changing tables, you can comfortably change your baby’s diapers in any of these rooms.
  • To pay for services and purchase goods easily once you land at Humberto Delgado Airport (LIS), you should convert some of your cash to the local currency. At SEA, you’ll be able to do so, as this airport features currency exchange sites. They are located in the ticketing level and baggage claim area in the Main Terminal and near Gates A and S.
  • LIS features information desks in its Arrivals Hall and Departures Hall. At any of these information desks, open from 7 am to 12 am, you can rest assured of getting the help you need once you land at this airport, as they are both manned by informed airport staff.
  • If you have the necessary documents, you can easily rent a car at LIS, as this airport features counters for car rental agencies such as Hertz, SIXT, Europcar, Avis, Budget, and other local car rentals. As the counters for these car rentals are within the airport’s terminal complex, you won’t need any form of ground transportation to get to the counter of your preferred car rental.
See more tips

Top 4 airlines serving from Seattle to Lisbon

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Lisbon. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seattle to Lisbon? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.5
Air FranceOverall score based on 1777 reviews
7.4Comfort
7.2Food
8.2Crew
7.1Entertainment
7.5Boarding
Airline reviews

Old cabine without flat bed in business for a 12 hour flight is not acceptable

4.0 OkayAnonymous, Apr. 2024JNB - CDG
Read more about Air France reviews

Old cabine without flat bed in business for a 12 hour flight is not acceptable

Generally good. The crew is excellent. The food could be better.

They wanted to close counter although they did not provide the wheelchair requested which ended by going alone to transit security and lost long time and they did not want to wait .

Did not find the wheelchair that supposed to assist and went to a long queue for transit security chk which was very slow and boarding desk wanted to close counter although that they knew that I am minutes away because of their mistake of not providing the wheelchair.

They charge me for luggage which is was included on the ticket

Business class in the second leg - CDG-EVN was a disaster.

worst experience ever i choose my seat in advance and also have my seat selected in my boarding and the they told me that my seat has been changed without notify me

No birding was given for next trip on same carrier, food was very moderate.

We transited through Chad and what was supposed to be a 1hr 20 minutes transit time lasted over 4hrs. We didn't get regular updates until we complained. After a 10hr flight from Paris no form of refreshment given and finally arrived Abuja over 6hrs later and none of my bags came

The line at boarding was not well organized and managed

Flight was delayed 2.5 hours - a big deal on an overnight when you plan to sleep.

I feel like they have upgraded the app since I last flew United and I found it to be super helpful. I had stopped flying United unless absolutely necessary and my experience on this trip indicates they have been working hard to improve their services.

Surprisingly easy! I was hesitant to try this, but the cost swayed me. I actually felt like I had less stress than all the taxiing and possible delays that occur with short regional flights where you spend less time in the air than getting to and from the plane..

This flight was delayed multiple times and eventually canceled around 2-3ish. Original take off time was around 10:30am. By 3, there were no other options out of Houston, so stuck in Houston for from 3pm - 11am the next day.

Should have video screens Plane audio was poor and without wired connection hard to understand crew. Should serve more than just cups of water and pretzels on six hour flight. Did not see crew rest of flight. Fix charging sockets to retain charging blocks.

I paid $380 for my one-way ticket from California to Minnesota. The fair did not include online check-in. I received instructions from their app to check in at a kiosk. At the kiosk, the boarding pass would not print until an actual person came to verify that I had a personal item and not a carry-on item, On the plane, the person next to me was drunk and allowed to continue to order alcohol. United is garbage I’d rather fly spirit.

The plane was dirty and the in seat air wasn't blowing as planes usually do.

Generally good but there wasn’t any staff available when my luggage didn’t appear at baggage claim in Fresno. It took about half an hour to locate a staff member to open up the locked room where it was being kept.

Do not like the feeling of being in the basic economy. Everyone should feel good no matter what.

All flights were on time and boarding was issue free

The flight was half full and I presume that the next few days are even less busy not sure why they are still charging a premium to change a flight.

Are Longus was fine. I booked thru Kayak and was unable to get my business class seat early. Sat next to galley. Crew forgot to wake me for breakfast.

I loved how they arrange boarding (starting with people seated in back and moving to the front). Flight crew was very polite and welcoming. Seating was ok, I felt like there was enough leg space however it is noticeable when the passenger in front of you sets their seat back.

Nice to be on a flight that wasn't fully booked so there were only two of us in the three seat row.

The only problem was there are games on the entertaiment system. The guy behind me played poker the entire time and poking the back of my seat. I hope they remove these.

Great travel. Wonderful experience. Hope to do it again in the near future. God willing

Aer Lingus doesn't have plug ins for devices at each seat. They also did not give me a dairy free meal as requested and confirmed by staff. It was as if I had not requested anything. Otherwise, they were great!

The transatlantic flight was wonderful. The regional reminded me of jet blue. Crazy and packed. Not enough overhead space and tough on elderly.

All OK. Food, best bring your own. Even a BigMac will be better.

Always find Aer Lingus reliable and good value for money. Food on this flight was pretty basic and the headphone Jack at my seat only worked for one ear. Little disappointed in movie selection, limited on recent releases. Staff are okay - but I always buy a cheap ticket so not like I expect first class opulence anyway!!!

Lost our bags in Heathrow, We didn’t receive bags in Mallorca for 3 days, out of a 7 day cycling vacation. Really inconvenient and disappointing!

We missed the flight to Barcelona because the flight from Baltimore was delayed. We flew on Vueling VW6653. Our luggage didn’t arrive. Please help us get our luggage. We are staying at Hotel Gran Via in Barcelona

The seats were tiny, being of a fairly petite build, I don’t usually expect to feel crammed and cramped in a seat, but I definitely was on this flight. I couldn’t even bend over to get anything out from under the seat in front and getting up to go to the bathroom at night with the seat backs reclined was nearly impossible. I had to do gymnastics to get over and out. For an airline that does long flights overnight, it’s kind of ridiculous.

Not connecting flights. Missed my flight from Dublin to Liverpool because I arrived at Dublin one hour too late. For this mistake, they offered me a flight from Dublin to Manchester. Thats great and all, but I waste time and money to commute to Liverpool. Be sure to check the time of your connecting flights, because they sure don’t when they sell it to you

Excellent! Great flight attendants, good food (in business class, at least), very comfortable. Touchscreen and remote wasn’t great.

In economy and food was ok, but with limited leg space (and I was in a 2 seat configuration) it was difficult to eat with a tiny seat tray. I spilt wine on my trousers. First time on British Air (I usually fly Turkish Air) and in a 777. Heathrow was pleasant but changing terminals awkward.

Starting with the flight Cairo to London the plain was so poor no entertainment at all uncomfortable seats although it’s 5 hours long,then an American airline plain took me from London to Miami it was a bad experience the crew most of flight time not available and they asked us to help our selves for any snacks if we need. From Miami to London actually was perfect flight with a huge plain and perfect crew but from London to Cairo was horrible plain with stiff fixed seats not movable no entertainment or wi fi very poor Menu which is unacceptable for a business class

I've done hundreds of flights in my life, and this flight was one of the best I've ever taken, From beginning to end, everything went smoothly, professionally, and with a smile and friendly attitude from all employees I interacted with. The food was delicious (and free), as were the drinks. There was just a genial and effective way in the way that British Airways organized the flight -that reminded of days in the 70's, 80's, and 90's, when flying was a fun, and exciting adventure. I enjoyed and had confidence in the abilities of the flight crew, I'll be flying British Airways several more times this summer. Thank you so much for the great experience! Cheryl Olso

My baggage did not arrived with me. Took 3 days to get it after so may calls and follow up

Terrible! I missed my flight to my final destination and British airlines and American Airlines keep pointing fingers on each other’s. Nobody wants to take responsibility

Book cheap flights from Seattle to Lisbon

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Seattle to Lisbon found on KAYAK in the last 72 hours.
3/8Sat
2 stops
25h 45mSEA-LIS
C$ 574
3/8Sat
3 stops
24h 45mSEA-LIS
C$ 634
3/8Sat
1 stopUnited Airlines
26h 55mSEA-LIS
C$ 902
22/7Mon
3 stopsUnited Airlines
19h 45mSEA-LIS
C$ 1,290
23/9Mon
3 stopsUnited Airlines
19h 45mSEA-LIS
C$ 1,358
1/9Sun
3 stopsUnited Airlines
19h 45mSEA-LIS
C$ 1,845
8/9Sun
1 stopKLM
22h 15mSEA-LIS
C$ 5,563

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Last minute flights from Seattle to Lisbon

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Seattle to Lisbon that are departing in the next 10 days.
12/5Sun
multi-stopTurkish Airlines
36h 45mSEA-LIS
23/5Thu
multi-stopTurkish Airlines
31h 55mLIS-SEA
C$ 1,380
12/5Sun
multi-stopTurkish Airlines
36h 45mSEA-LIS
21/5Tue
multi-stopTurkish Airlines
37h 50mLIS-SEA
C$ 1,437
11/5Sat
multi-stopTurkish Airlines
36h 45mSEA-LIS
31/5Fri
multi-stopTurkish Airlines
37h 45mLIS-SEA
C$ 1,532
11/5Sat
multi-stopTurkish Airlines
36h 45mSEA-LIS
2/6Sun
multi-stopTurkish Airlines
32h 20mLIS-SEA
C$ 1,546
9/5Thu
multi-stopTurkish Airlines
31h 15mSEA-LIS
31/5Fri
multi-stopTurkish Airlines
37h 45mLIS-SEA
C$ 1,560
12/5Sun
multi-stopTurkish Airlines
36h 45mSEA-LIS
31/5Fri
multi-stopTurkish Airlines
32h 20mLIS-SEA
C$ 1,567
9/5Thu
multi-stopTurkish Airlines
31h 15mSEA-LIS
2/6Sun
multi-stopTurkish Airlines
32h 20mLIS-SEA
C$ 1,574
11/5Sat
multi-stopLufthansa
34h 10mSEA-LIS
4/6Tue
multi-stopLufthansa
14h 55mLIS-SEA
C$ 2,050
11/5Sat
multi-stopLufthansa
23h 50mSEA-LIS
18/5Sat
multi-stopLufthansa
20h 32mLIS-SEA
C$ 2,106
9/5Thu
multi-stop
19h 45mSEA-LIS
1/6Sat
multi-stop
20h 40mLIS-SEA
C$ 2,870

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Seattle - Lisbon Flights

Departure:

Seattle (undefined)United States

Destination:

Lisbon (LIS)Portugal

Cabin classes:

Browse origins:

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  • Seattle

Browse destinations:

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  • Lisbon