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SEA - LIS

$263 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 10/11. 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
Sat 6/29
Sat 7/6

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Lisbon.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Lisbon.
In the last 7 days travelers have searched 42,686,544 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 pm - 9:45 pmSEA-LIS
19h 00m1 stop
6:35 am - 9:15 pmLIS-SEA
22h 40m2 stops
$603American Airlines
Find Deal
Sun, Nov 17 - Wed, Dec 4
6:45 pm - 9:45 pmSEA-LIS
19h 00m1 stop
11:15 am - 9:43 pmLIS-SEA
18h 28m1 stop
$604British Airways
Find Deal
Sun, Nov 17 - Wed, Dec 4
1:50 pm - 5:45 pmSEA-LIS
19h 55m2 stops
6:35 am - 9:15 pmLIS-SEA
22h 40m2 stops
$606American Airlines
Find Deal
Sun, Nov 17 - Wed, Dec 4
6:45 pm - 9:50 pmSEA-LIS
19h 05m1 stop
12:30 pm - 12:56 amLIS-SEA
20h 26m2 stops
$653American Airlines
Find Deal
Wed, Nov 6 - Sat, Nov 16
9:45 am - 9:20 amSEA-LIS
15h 35m1 stop
11:00 am - 9:08 pmLIS-SEA
18h 08m1 stop
$711Air Canada
Find Deal
Thu, Nov 7 - Fri, Nov 15
6:45 pm - 10:15 amSEA-LIS
31h 30m1 stop
10:15 pm - 5:01 pmLIS-SEA
26h 46m1 stop
$877Aer Lingus
Find Deal
Fri, Aug 16 - Sun, Aug 18
7:10 am - 8:00 amSEA-LIS
16h 50m1 stop
6:50 pm - 11:20 amLIS-SEA
24h 30m1 stop
$931Air France
Find Deal
Tue, Jul 9 - Tue, Jul 16
1:35 pm - 11:15 amSEA-LIS
13h 40m1 stop
5:40 am - 5:35 pmLIS-SEA
19h 55m1 stop
$958Delta
Find Deal
Mon, Jul 15 - Wed, Jul 24
11:15 am - 2:50 pmSEA-LIS
19h 35m2 stops
5:40 am - 5:35 pmLIS-SEA
19h 55m1 stop
$963Delta
Find Deal
Mon, Jul 15 - Wed, Jul 24
6:45 pm - 9:35 pmSEA-LIS
18h 50m1 stop
10:15 pm - 5:01 pmLIS-SEA
26h 46m1 stop
$997Aer Lingus
Find Deal
Thu, Jul 25 - Sat, Aug 17

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’s the cheapest day of the week to fly from Seattle to Lisbon?

The average price of all flights from Seattle to Lisbon clicked on KAYAK for each day over the last 12 months.
Your flight ticket price will generally be cheaper if you fly to Lisbon on a Monday and more expensive on a Thursday. On your return trip to Seattle, you should consider flying back on a Friday, and avoid Saturdays for better deals.

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 $722 on average. On the other hand, the most expensive months are June and May, where the average cost of tickets is $1,499 and $1,377 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 best deals for a one-way ticket found by KAYAK users over the last 3 days were on Aer Lingus ($516) and United Airlines ($627). The cheapest round-trip tickets were found on American Airlines ($603) and British Airways ($604).

Good to know

Low season

January

High season

September

Cheapest flight

$263
Best time to beat the crowds with an average 31% drop in price.
Most popular time to fly with an average 2% increase in price.
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 $263 for a one-way ticket and $603 for a round-trip.

  • Do I need a passport to fly between Seattle and Lisbon?

    Yes, you’ll need a passport to travel to Lisbon from Seattle.

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

  • What is the most popular layover when flying to Lisbon from Seattle?

    London is the most popular layover city among KAYAK users traveling from Seattle to Lisbon.

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

    The two airlines most popular with KAYAK users for flights from Seattle to Lisbon are Delta and Air France. With an average price for the route of $1,062 and an overall rating of 8.0, Delta is the most popular choice. Air France is also a great choice for the route, with an average price of $1,105 and an overall rating of 7.5.

  • 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. Booking your flights between Seattle and LIS can sometimes prove cheaper using this method.

  • 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

KAYAK’s 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 5 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.
8.0
DeltaOverall score based on 10457 reviews
8.2Boarding
8.6Crew
8.0Entertainment
7.4Food
7.9Comfort
Airline reviews

The plane from SNA wouldn’t start after 5 tries. The team gave me an option of flying direct from LAX and giving me a Lyft ride there! Perfect!

10.0 ExcellentSash, May 2024SEA - HNL
Read more about Delta reviews

The plane from SNA wouldn’t start after 5 tries. The team gave me an option of flying direct from LAX and giving me a Lyft ride there! Perfect!

Had a broken tray in business class. Crew just shrugged it off.

Everything was great except for the seat. The backrest would not stay in the upright position.

public website still broken for years randomly blocking browsers with privacy options active after loading a page maybe once. check-in on laptop was almost impossible but eventually randomly worked. had to print pass at airport since couldn't get back in to load digital pass on mobile firefox or chrome. red eye flight so smooth onboarding, plenty of room to spread out, easy offboarding. onboard wifi instructions mention vpn can cause problems connecting but fails to also mention private dns. no printed or built in menu list, seems weird to require personal device to point at qr code link for menu which does not even allow direct ordering. people with health condition risk related dietary restrictions trying to avoid for example cholesterol and sugar are left guessing what they can order either way without nutritional info highlights (cranberry juice was minute maid cocktail with as much suger as typical can of soda). tap to pay wasn't working and always seems sketchy to manually enter card info. good movie variety, so limited tv was okay.

Bag drop off was slow and annoying. Only 2 agents at the entire delta desk, and no one directing traffic for what line to be in, many confused people slowed down the process. Boarding was fine. Seats in Delta comfort plus were fine. Snacks were great! Definitely a bonus. The entertainment system was awful — old, slow, not responsive, and completely unable to play games due to some kind of error. But on the other hand, thank you to Delta for the free WiFi. That made it better.

Flight diverted in SD. Later take off in Seattle by 1.3hrs

Mi primera conexión se retrasó por lo cual perdí mi segunda conexión la cual salió adelantada

Crew was not friendly when I went to request a seat change.

There were choices for the snacks. Good choices and tasty lunch and breakfast as well.

The flight crew was amazing. I’m very tall and they moved me to an exit row unsolicited!!! Amazing service.

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

The flight and boarding were easy peasy. I was traveling with my 4-year-old, so a smooth boarding experience was especially appreciated. My only piece of feedback is really about where our gate was in O'Hare. They've shoved four gates into a tiny corner of the B terminal and there isn't early enough room or seating for everyone. Not United's problem, but did dent the overall experience.

We liked the fully reclinable seats. Had center seats, so it was difficult to talk to spouse. Crew was great

Aisle chair was good and liked the foot bar preventing you from putting your foot in the isle, The breakfast on this international flight to Zurich was horrible (Europeans, specially, used to good food) may make this a dealbreaker for booking with United Airlines again. I agreed with my Spanish fellow passenger.

Dinner was okay but the breakfast was not eatable on the flight San Francisco to Zurich.

There was no screens on board AND the WiFi didn’t work. My seat was broken and couldn’t recline so I couldn’t even sleep. The flight attendants didn’t offer anything to make it more comfortable. It was such an old cramped plane, when the person in front of me reclined I couldn’t even open my tray table. All the United ads talk about guaranteeing everyone gets a screen!

The Wi-Fi was unavailable on this flight for some reason.

The flight was delayed almost 2 hours. Bad customer service etc. I will never fly Luthansa. Ever!!!

On time take off…US cabins look tired and need of refresh!

Fine. Though no food or entertainment so the survey needs to be updated with those options.

Backpack should NOT allowed put in the flight bin , only put it under the seat. I can't find space put my carry on luggage!!! and I pay for it ! that was very bad experience

Unable to initiate refund/reschedule the ticket #worst experience #lost 900$

Flight was delayed for almost 3 hours. Communication of gate change was poor. Email and screen said one gate and it was a different gate from that. Gate changed first to 64 B and then to 64 C. Originally it was 68B. 64C was not communicated properly!

Much better than previous experiences. Overall, it went smoothly after an unexpected delay and gate change.

This was a red eye return, so I doubt there would be anyway to make it better. Other than adding beds.

Direct nonstop flight was great. Flight was delayed and the crew announced a 2h delay on the sound system. 30 min or so later I hear my name on the sound system for immediate board. Several other passangers were late too. Reason: The crew incorrectly announced a 2h delay when in reality they meant a new boarding time at 2pm.

Plenty of room in the exit row. Sat on the plane an hour before taking off.☹️ Landed late and had to wait for gate availability.

Flight was on time early arrival better entertainment good staff.everything was excellent

Delayed leaving. On arrival we were taken to the airstrip and had to get off onto an over crowed bus, not all that passengers fit. Drove around the airport for 20 + minutes. Taken off the bus told to go upstairs 3 flights then all the passengers had to walk a mile or more , those of us old there was no one to direct us to were to go. I asked several people with no answers. Once I got to baggage claim my bags were not on the right bag claim. Once again asked for help and finally someone found my bags on a different carasel. Very frustrating.

Excellent host on board. Not so friendly check-in staff. Older plane with no food or entertainment due to short flight. Friendly captain and crew.

I don’t think there was entertainment? No mention of it. It was a good flight. Only complaint was my seat cushion was not attached and kept slipping.

The flight as far as timings go was excellent. Unfortunately we ended up sat with someone on a night flight who had been drinking alcohol before boarding and BA staff were happily serving him more alcohol. He was very drunk which made our flight uncomfortable and awkward. My partner had this person lying on him whilst asleep. Alcohol should be served minimally. If there had been an emergency this person would not have been in a fit state to act accordingly.

First time flying with BA and I will do it again. Staff at airport and on board were very nice and helpful

they are improving. The crew from Charlotte to Tampa was outstanding. SMILING and trying to be helpful with the customers.

Wonderful service and very comfy in the bulkhead in Economy Plus! Delicious food.

The BA team at Sky Harbor is deplorable, full of unnecessary attitude and poor communication. It seems like every member of the team was looking at another to solve the problem, instead of taking agency to do so themselves. I saw no less than 6 altercations with the same gate agent where he threatened to revoke the passengers boarding pass for asking a wildly reasonable question, something as simple as where the cue to board was. I’ve complained to BA before but it seems this isn’t an issue for them, which is very disappointing

Boarding poor in London,ok in Chicago. Don’t like Heatrow/terminal5

It was very good. We got a late start by about an hour and a half. However I worked rather have that than crash. It was purely mechanical. They had our tickets ready when we came off the plane in London for the next leg. The only mishap was when we got to Lisbon my husbands luggage made or bit mine didn't. All was not lost because I did finally get it 2 days later. I was really pleased that they c made the effort.

Leg space was not enough. The meal was not satisfactory.

Liked that my American Airlines status seamlessly transferred to BA so luggage check was free. Flights were on time, boarding quick. Wish they didn’t assign connecting gate so late at Heathrow.

The entire process was flawless and as expected flying first class. The only thing that I have a complaint on...when first boarding, the plane was EXTREMELY cold; then when we were trying to sleep, it was way too hot - just better regulating (especially trying to sleep) would have made it perfect.

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.
10/11Fri
2 stops
27h 00mSEA-LIS
$263
10/11Fri
3 stops
32h 40mSEA-LIS
$298
8/20Tue
2 stops
38h 50mSEA-LIS
$343
10/11Fri
1 stopAer Lingus
31h 30mSEA-LIS
$516
7/20Sat
1 stopAer Lingus
32h 00mSEA-LIS
$584
11/18Mon
3 stopsUnited Airlines
19h 51mSEA-LIS
$627
9/23Mon
2 stopsBritish Airways
39h 01mSEA-LIS
$676
6/10Mon
1 stopBritish Airways
19h 35mSEA-LIS
$766
7/22Mon
2 stopsUnited Airlines
26h 00mSEA-LIS
$944
9/24Tue
1 stopAir France
15h 40mSEA-LIS
$1,924

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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.
6/3Mon
multi-stopBritish Airways
20h 35mSEA-LIS
6/17Mon
multi-stopBritish Airways
31h 00mLIS-SEA
$950
6/3Mon
multi-stopBritish Airways
19h 10mSEA-LIS
6/17Mon
multi-stopBritish Airways
22h 42mLIS-SEA
$983
6/3Mon
multi-stopAmerican Airlines
17h 02mSEA-LIS
6/17Mon
multi-stopAmerican Airlines
17h 35mLIS-SEA
$1,036
6/3Mon
multi-stop
27h 05mSEA-LIS
6/17Mon
multi-stop
32h 20mLIS-SEA
$1,102
6/3Mon
multi-stop
28h 55mSEA-LIS
6/17Mon
multi-stop
32h 20mLIS-SEA
$1,154
6/3Mon
multi-stop
22h 00mSEA-LIS
6/8Sat
multi-stop
30h 35mLIS-SEA
$1,179
6/2Sun
multi-stopIberia
27h 21mSEA-LIS
6/29Sat
multi-stopIberia
39h 36mLIS-SEA
$1,282
6/4Tue
multi-stop
26h 39mSEA-LIS
6/18Tue
multi-stop
20h 39mLIS-SEA
$1,460
6/3Mon
multi-stop
22h 00mSEA-LIS
6/29Sat
multi-stop
17h 05mLIS-SEA
$1,512
6/4Tue
multi-stopAmerican Airlines
27h 30mSEA-LIS
6/16Sun
multi-stopAmerican Airlines
36h 15mLIS-SEA
$8,070

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Seattle - Lisbon Flights

Departure:

Seattle (SEA)United States

Destination:

Lisbon (LIS)Portugal

Return flight deals:

Lisbon - Seattle

Cabin classes:

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