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Cheap flights from Seattle to Lisbon from £429

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 16/9. 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.
SEA — LIS
25 May — 1 Jun1
1 adult
Sat 25/5
Sat 1/6

Cheap flight deals from Seattle to Lisbon

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Lisbon (LIS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 20 May 2024.

Popular in

June

Cheapest in

February

Average price

£1,086

Round-trip from

£81
High demand for flights, 32% potential price rise
Best time to find cheap flights, 30% potential price drop
Average for round-trip flights in May 2024
From Seattle/Tacoma Intl to Lisbon Humberto Delgado

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

Travelers have found it’s best to book a flight 38 days in advance to save up to 46% 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 38 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 £574, or £785 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 February, with the cheapest ticket starting at £358.

When is the cheapest time to fly from Seattle to Lisbon (SEA - 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.

Cheap British Airways flights from Seattle to Lisbon

Explore cheap flight options specifically provided by British Airways for the route between Seattle and Lisbon. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 853,037 searches. Data last updated 20 May 2024.
Take a peek at the cheapest British Airways flights we've detected travelling from Seattle to Lisbon. Make sure to check back often as deals are often changing.
Wed 30/1019:45SEA - LIS
1 stop19h 05mBritish Airways
Wed 6/1111:15LIS - SEA
1 stop18h 28mBritish Airways
Deal found 19/5£520
Wed 30/1019:45SEA - LIS
1 stop19h 05mBritish Airways
Mon 4/1115:40LIS - SEA
1 stop27h 45mBritish Airways
Deal found 19/5£566
Fri 30/813:30SEA - LIS
1 stop25h 45mBritish Airways
Sun 15/911:05LIS - SEA
1 stop18h 28mBritish Airways
Deal found 20/5£875
Sun 25/819:40SEA - LIS
1 stop14h 15mBritish Airways
Sun 1/911:05LIS - SEA
1 stop19h 09mBritish Airways
Deal found 19/5£903
Sun 25/819:40SEA - LIS
1 stop14h 15mBritish Airways
Sun 1/911:05LIS - SEA
1 stop19h 09mBritish Airways
Deal found 20/5£959

Cheap Delta flights from Seattle to Lisbon

Explore cheap flight options specifically provided by Delta for the route between Seattle and Lisbon. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 853,037 searches. Data last updated 20 May 2024.
Take a gander at the lowest prices we've found on Delta flights from Seattle to Lisbon. Deals are refreshing constantly so come back soon for more options.
Tue 29/1022:00SEA - LIS
1 stop28h 00mDelta
Wed 6/1110:00LIS - SEA
1 stop17h 23mDelta
Deal found 19/5£531
Wed 30/1007:20SEA - LIS
2 stops20h 15mDelta
Wed 6/1105:30LIS - SEA
2 stops21h 53mDelta
Deal found 19/5£557
Mon 29/707:50SEA - LIS
1 stop18h 55mDelta
Thu 29/809:40LIS - SEA
1 stop16h 00mDelta
Deal found 19/5£801
Wed 31/713:35SEA - LIS
1 stop17h 15mDelta
Fri 30/805:00LIS - SEA
1 stop19h 35mDelta
Deal found 19/5£812
Mon 29/707:50SEA - LIS
1 stop18h 55mDelta
Sat 31/812:45LIS - SEA
1 stop17h 13mDelta
Deal found 19/5£839
Sun 28/713:35SEA - LIS
1 stop13h 40mDelta
Sat 31/812:45LIS - SEA
1 stop17h 13mDelta
Deal found 19/5£849
Wed 31/713:35SEA - LIS
1 stop13h 40mDelta
Mon 26/805:40LIS - SEA
1 stop20h 00mDelta
Deal found 19/5£849
Thu 20/613:35SEA - LIS
1 stop17h 15mDelta
Thu 27/612:45LIS - SEA
1 stop17h 27mDelta
Deal found 20/5£851
Sun 28/713:35SEA - LIS
1 stop13h 40mDelta
Sun 25/805:00LIS - SEA
1 stop19h 35mDelta
Deal found 19/5£852

Cheap Seattle to Lisbon flights in May & June 2024

Find cheap flight options from Seattle to Lisbon specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 853,037 searches. Prices were last updated on 20 May 2024.
These are some of the best deals we've found on flights to Lisbon in 2024 at this time. For more flight deals, be sure to check back very soon.
Sun 2/607:45SEA - LIS
1 stop19h 05mKLM
Sat 29/619:30LIS - SEA
1 stop22h 50mKLM
Deal found 19/5£844
Thu 20/613:35SEA - LIS
1 stop17h 15mDelta
Thu 27/612:45LIS - SEA
1 stop17h 27mDelta
Deal found 20/5£851
Sat 8/607:10SEA - LIS
2 stops26h 45mAir France
Mon 17/618:50LIS - SEA
1 stop24h 30mAir France
Deal found 20/5£853
Mon 10/613:35SEA - LIS
1 stop17h 15mDelta
Mon 17/605:40LIS - SEA
2 stops19h 00mDelta
Deal found 19/5£860
Tue 28/510:53SEA - LIS
2 stops15h 37mUnited Airlines
Wed 5/611:25LIS - SEA
1 stop17h 51mUnited Airlines
Deal found 20/5£861
Fri 7/613:35SEA - LIS
1 stop13h 40mDelta
Fri 14/605:00LIS - SEA
2 stops18h 50mDelta
Deal found 19/5£862
Mon 3/607:45SEA - LIS
2 stops19h 30mDelta
Mon 10/605:40LIS - SEA
2 stops21h 14mDelta
Deal found 20/5£864
Mon 27/511:05SEA - LIS
2 stops15h 25mUnited Airlines
Wed 5/610:25LIS - SEA
2 stops17h 45mUnited Airlines
Deal found 19/5£873
Fri 7/608:01SEA - LIS
1 stop18h 29mUnited Airlines
Mon 17/606:15LIS - SEA
2 stops26h 44mUnited Airlines
Deal found 19/5£884

Seattle to Lisbon 2024 flight deals

Discover exclusive flight deals for travel between Seattle and Lisbon in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 853,037 searches. Data last updated 20 May 2024.
These are some of the best deals we've found on flights to Lisbon in 2024 at this time. For more flight deals, be sure to check back very soon.
Mon 16/911:45SEA - LIS
2 stops24h 50mMultiple Airlines
Wed 25/907:10LIS - SEA
2 stops22h 51mMultiple Airlines
Deal found 19/5£429
Mon 28/1011:12SEA - LIS
2 stops27h 18mMultiple Airlines
Wed 6/1107:05LIS - SEA
2 stops23h 15mMultiple Airlines
Deal found 19/5£432
Mon 16/911:45SEA - LIS
2 stops24h 50mMultiple Airlines
Fri 27/907:00LIS - SEA
2 stops22h 56mMultiple Airlines
Deal found 19/5£478
Mon 16/911:45SEA - LIS
2 stops24h 50mMultiple Airlines
Mon 30/907:20LIS - SEA
2 stops22h 40mMultiple Airlines
Deal found 19/5£487
Mon 16/910:05SEA - LIS
2 stops26h 30mMultiple Airlines
Mon 30/907:20LIS - SEA
2 stops22h 40mMultiple Airlines
Deal found 20/5£505
Thu 7/1110:50SEA - LIS
2 stops20h 45mMultiple Airlines
Fri 15/1106:55LIS - SEA
2 stops23h 25mMultiple Airlines
Deal found 19/5£511
Wed 30/1019:45SEA - LIS
1 stop19h 05mBritish Airways
Wed 6/1111:15LIS - SEA
1 stop18h 28mBritish Airways
Deal found 19/5£520
Tue 29/1022:00SEA - LIS
1 stop28h 00mDelta
Wed 6/1110:00LIS - SEA
1 stop17h 23mDelta
Deal found 19/5£531
Tue 29/1019:30SEA - LIS
2 stops32h 00mMultiple Airlines
Tue 5/1115:50LIS - SEA
1 stop28h 10mMultiple Airlines
Deal found 19/5£540

Seattle to Lisbon flights leaving soon

Find last-minute flight options from Seattle to Lisbon for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 853,037 searches. Data last updated 20 May 2024.
Consider one of these great deals we found on last-minute flights from Seattle to Lisbon. Users should double check the flight they book to ensure it matches the day, time, and destination they're looking for.
Tue 28/510:53SEA - LIS
2 stops15h 37mUnited Airlines
Wed 5/611:25LIS - SEA
1 stop17h 51mUnited Airlines
Deal found 20/5£861
Mon 27/511:05SEA - LIS
2 stops15h 25mUnited Airlines
Wed 5/610:25LIS - SEA
2 stops17h 45mUnited Airlines
Deal found 19/5£873
Sun 26/507:45SEA - LIS
2 stops19h 30mDelta
Thu 6/605:40LIS - SEA
2 stops19h 16mDelta
Deal found 19/5£891
Mon 27/510:53SEA - LIS
2 stops15h 37mMultiple Airlines
Mon 3/611:25LIS - SEA
1 stop17h 51mMultiple Airlines
Deal found 19/5£901
Thu 30/507:10SEA - LIS
1 stop16h 50mKLM
Sat 8/612:45LIS - SEA
1 stop17h 27mKLM
Deal found 20/5£948
Thu 30/507:45SEA - LIS
1 stop19h 00mDelta
Sat 8/605:40LIS - SEA
2 stops20h 23mDelta
Deal found 20/5£956
Sun 26/514:43SEA - LIS
2 stops24h 37mMultiple Airlines
Thu 6/605:05LIS - SEA
2 stops25h 45mMultiple Airlines
Deal found 19/5£1,134
Sun 26/514:43SEA - LIS
2 stops24h 37mMultiple Airlines
Thu 6/607:30LIS - SEA
1 stop15h 30mMultiple Airlines
Deal found 19/5£1,165

One-way flights to Lisbon from Seattle

Search for one-way flight options from Seattle to Lisbon. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 853,037 searches. Data last updated 20 May 2024.
Take a look at some of the best available options we've come across on one-way flights from Seattle to Lisbon. Users can also find round-trip Seattle to Lisbon flights by using the search form above.
Sun 26/513:50SEA - LIS
2 stops24h 25mMultiple Airlines
Deal found 20/5£590
Sun 1/918:15SEA - LIS
2 stops44h 10mWestJet
Deal found 19/5£615
Fri 9/818:40SEA - LIS
1 stop31h 15mTurkish Airlines
Deal found 20/5£652
Sun 7/713:40SEA - LIS
1 stop25h 35mBritish Airways
Deal found 19/5£684
Sun 21/700:30SEA - LIS
2 stops24h 50mUnited Airlines
Deal found 19/5£734
Sat 20/723:59SEA - LIS
2 stops24h 21mUnited Airlines
Deal found 20/5£738
Fri 31/507:00SEA - LIS
2 stops31h 25mWestJet
Deal found 19/5£767
Fri 19/700:30SEA - LIS
2 stops23h 50mUnited Airlines
Deal found 20/5£778
Thu 29/806:45SEA - LIS
3 stops19h 45mUnited Airlines
Deal found 18/5£1,097

Find flights from Seattle to Lisbon within your budget

Customise your flight search to find flights from Seattle to Lisbon that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 853,037 searches. Data last updated 20 May 2024.

Fly from

Any airport

Fly to

Any airport

Budget

£429 - £847

Route

Depart

Return

Price

Seattle/Tacoma IntlLisbon Humberto Delgado

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Mon 16/9

2 stops24h 50m

Lisbon Humberto Delgado

Wed 25/9

2 stops22h 51m

£429

Seattle/Tacoma IntlLisbon Humberto Delgado

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Mon 28/10

2 stops27h 18m

Lisbon Humberto Delgado

Wed 6/11

2 stops23h 15m

£432

Seattle/Tacoma IntlLisbon Humberto Delgado

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Wed 30/10

1 stop19h 05m

Lisbon Humberto Delgado

Wed 6/11

1 stop18h 28m

£520

Seattle/Tacoma IntlLisbon Humberto Delgado

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Tue 29/10

1 stop28h 00m

Lisbon Humberto Delgado

Wed 6/11

1 stop17h 23m

£531

Seattle/Tacoma IntlLisbon Humberto Delgado

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Sun 10/11

2 stops40h 40m

Lisbon Humberto Delgado

Sat 16/11

2 stops41h 49m

£579

Seattle/Tacoma IntlLisbon Humberto Delgado

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Sat 9/11

1 stop25h 05m

Lisbon Humberto Delgado

Sun 17/11

1 stop26h 50m

£579

Seattle/Tacoma IntlLisbon Humberto Delgado

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Tue 15/10

2 stops19h 20m

Lisbon Humberto Delgado

Fri 1/11

3 stops30h 35m

£666

Seattle/Tacoma IntlLisbon Humberto Delgado

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Mon 16/9

1 stop31h 15m

Lisbon Humberto Delgado

Tue 24/9

1 stop32h 15m

£711

Seattle/Tacoma IntlLisbon Humberto Delgado

SEA - LIS

SEALIS

Seattle/Tacoma Intl

Tue 9/7

1 stop16h 50m

Lisbon Humberto Delgado

Mon 15/7

2 stops32h 48m

£847

Flights are sorted by cheapest first

Deals found on 19/5

When is the best time to book a flight from Seattle to Lisbon?

Use this chart to determine the optimal time to book a return flight from Seattle to Lisbon. Price data was last updated on 10 May 2024.
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 37 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Search Deals

Average price of flights to Lisbon by month

Plan your trip from Seattle to Lisbon by taking into account the cheapest months to travel. The average price of a one-way flight from Seattle to Lisbon is currently £739 while a return flight costs £588. Price data was last updated on 12 May 2024.

Currently, January is the cheapest month in which you can book a flight from Seattle to Lisbon (average of £103). Flying from Seattle to Lisbon in August is currently the most expensive (average of £245). 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.

January

£81

February

£92

March

£105

April

£114

May

£128

June

£142

July

£156

August

£193

September

£140

October

£126

November

£91

December

£83

Temperature and rainfall in Lisbon by month

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

LIS

Temperature

11 - 23 °C

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 20 May 2024.
Read reviews from past customers who have flown British Airways, Delta and SWISS from Seattle to Lisbon. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very Good
10,615 reviews

Overall

8.0

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Food

7.4

Crew

8.6

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

8.0
Very Good
10,615 reviews
8.0
Very Good
10,615 reviews

Overall

8.0

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Food

7.4

Crew

8.6

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

7.9
Good
1,555 reviews
8.0
Very Good
10,615 reviews

Overall

8.0

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Food

7.4

Crew

8.6

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

7.8
Good
1,980 reviews
8.0
Very Good
10,615 reviews

Overall

8.0

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Food

7.4

Crew

8.6

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

7.6
Good
1,761 reviews
8.0
Very Good
10,615 reviews

Overall

8.0

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Food

7.4

Crew

8.6

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

7.5
Good
2,895 reviews
8.0
Very Good
10,615 reviews

Overall

8.0

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Food

7.4

Crew

8.6

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

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.
  • Can I find flights from Seattle to Lisbon for under £500 on Cheapflights?

    Yes, there are multiple flights from Seattle to Lisbon for under £500. The cheapest flight booked recently is on Multiple Airlines for just £429, but on average you can expect to pay £548.

  • Are there last-minute flights available from Seattle to Lisbon for under £900?

    There are currently 8+ open flights from Seattle to Lisbon within the next 7 days for less than £900.

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

    British Airways, at £520, was found to be the cheapest airline from Seattle to Lisbon.Alternate airlines flying return to your destination include Delta and SWISS. British Airways is priced at 36% lower than the current average price of a flight leaving 3 months from now.

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

    One-way options have recently been found by users for as low as £615 on WestJet. Other airlines that offer cheap prices include Turkish Airlines from £652 and British Airways from £684 one-way.

  • What does SEA to LIS mean?

    Seattle/Tacoma Intl Airport is SEA and Lisbon Humberto Delgado Airport is LIS. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service.

  • Can I find deals for flights from Seattle to Lisbon that include extra baggage allowance?

    The amount of baggage you can bring on your Seattle to Lisbon flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Seattle to Lisbon with specific airlines?

    Yes, Cheapflights allows you to browse and filter Seattle to Lisbon flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • 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.

  • Can I find deals for flights from Seattle to Lisbon that allow pets onboard?

    Many airlines flying from Seattle to Lisbon offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Seattle to Lisbon?

    Yes, you can often find last-minute deals on Seattle to Lisbon flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Seattle to Lisbon flight deals updated?

    The Seattle to Lisbon flight deals you see on this page were last updated on 20/5.

See more FAQs

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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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