Are direct flights from Seattle to Lisbon always the best option?

Direct flights offer convenience by minimizing travel time and avoiding layovers. However, they are not always the most budget-friendly choice. Flights with one or more stops can often be cheaper, so comparing both types of itineraries is usually a good strategy.

Can flexible travel dates help on Seattle to Lisbon flights?

Yes, being flexible with your travel dates can significantly impact the price of your flight. Flying during off-peak seasons or on weekdays, rather than weekends, often results in lower fares. Even shifting your departure or return by a day or two may lead to savings.

What extra costs should I check before booking Seattle to Lisbon flights?

Before booking, always check for potential extra costs such as baggage fees, seat selection charges, and in-flight meal costs. Some airlines may also charge for printing boarding passes at the airport. Being aware of these additional fees can help you calculate the true total cost of your journey.

Flights From Seattle

To Lisbon

Cheap Flights from Seattle to Lisbon

Browse current best options from Seattle. Become a member to unlock all deals and get alerts when new deals appear.

Deals from

Seattle

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

Prices updated 2 days ago

405 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated Jul 26, 2026.)

Today’s best flight deals from Seattle to Lisbon

Explore current cheapest deals departing from Seattle to Lisbon

2026-10-11 – 2026-10-18
SEA - Lisbon
82% AI deal score
$726
$611
Round trip
2026-10-23 – 2026-10-29
SEA - Lisbon
83% AI deal score
$748
$612
Round trip
2026-12-02 – 2026-12-08
SEA - Lisbon
90% AI deal score
$845
$617
Round trip
2026-10-11 – 2026-10-23
SEA - Lisbon
78% AI deal score
$703
$622
Round trip
2026-10-19 – 2026-10-26
SEA - Lisbon
79% AI deal score
$733
$624
Round trip
2026-10-02 – 2026-10-18
SEA - Lisbon
80% AI deal score
$690
$628
Round trip
2026-09-09 – 2026-09-16
SEA - Lisbon
86% AI deal score
$827
$635
Round trip
2026-11-16 – 2026-11-22
SEA - Lisbon
81% AI deal score
$733
$637
Round trip
2026-11-09 – 2026-11-24
SEA - Lisbon
79% AI deal score
$721
$666
Round trip
2026-10-06 – 2026-10-17
SEA - Lisbon
78% AI deal score
$693
$670
Round trip

Seattle to Lisbon: Overview

Insights for flights from Seattle to Lisbon

For flights from Seattle to Lisbon, fares typically range from $824–$1230, with a median of $1053. Right now, current fares are near the typical level for this route. Only about 10% of recent fares are classified as a good price, suggesting that finding a deal may require some flexibility. New deals appear almost daily, so setting up a price alert could be beneficial.

When is the cheapest time to fly from Seattle to Lisbon? The data indicates that January is the most affordable month, with a median fare of $404. Other cost-effective options include April, with a median of $529, and May, where the median fare is $554. Planning your trip during these months could lead to significant savings.

Regarding direct flights from Seattle to Lisbon, most itineraries connect at least once. Currently, 0% of recent fares are non-stop. For connecting itineraries, the typical number of stopovers is 2, which is important to consider when planning your journey.

How long is the flight from Seattle to Lisbon? A typical journey, including connections, takes about 29h 31m. This duration reflects the prevalence of connecting flights on this long-haul route, as direct options are not available.

The distance between Seattle and Lisbon is approximately 8372 km. This classifies the route as a long-haul journey, indicating a significant travel distance that typically involves extended flight times and often multiple connections.

How much is a round trip from Seattle to Lisbon

Regular price: $623 - $1,467

Prices for flights from Seattle to Lisbon are currently below the regular range.

The regular price range for flights from Seattle to Lisbon is $623 to $1467. The current lowest deal is $612 with Icelandair for travel from Oct 23-Oct 29.

now $612

Low $623

High $1,467

The cheapest time to fly from Seattle to Lisbon

The cheapest month to fly from Seattle to Lisbon is January, with a median price of $404. The most expensive month is June, with a median price of $1307. Prices are generally lower from January to December.

January

Cheapest

Flights from $404

June

Most Expensive

Flights from $1,307

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from Seattle to Lisbon

Icelandair

Alaska Airlines, Inc.

United Airlines

Air Canada

Last-minute flights going from Seattle to Lisbon

Sun, Sep 6

⌛ Last-Minute

SEA - Lisbon

Seattle (SEA) - Lisbon (LIS)

Icelandair

$823

$790

One-way

Sun, Sep 20

⌛ Last-Minute

SEA - Lisbon

Seattle (SEA) - Lisbon (LIS)

Alaska Airlines, Inc.

$854

$869

One-way

Mon, Sep 21

⌛ Last-Minute

SEA - Lisbon

Seattle (SEA) - Lisbon (LIS)

Icelandair

$835

$768

One-way

Tue, Sep 22

⌛ Last-Minute

SEA - Lisbon

Seattle (SEA) - Lisbon (LIS)

Air Canada

$835

$794

One-way

Wed, Sep 23

⌛ Last-Minute

SEA - Lisbon

Seattle (SEA) - Lisbon (LIS)

Lufthansa

$838

$802

One-way

Thu, Sep 24

⌛ Last-Minute

SEA - Lisbon

Seattle (SEA) - Lisbon (LIS)

Lufthansa

$858

$855

One-way

Biggest price drops on these dates for flights from Seattle to Lisbon

7 nights

Dec 9 - Dec 16

$856 → $720

16%

7 nights

Dec 2 - Dec 9

$831 → $739

11%

11 nights

Dec 14 - Dec 25

$868 → $781

10%

7 nights

Dec 4 - Dec 11

$842 → $768

Popular Airports to fly from Seattle to Lisbon

Seattle - Lisbon route insights

💸 Price insights

Recent fares are near the typical level

Recent fares from Seattle to Lisbon are near the typical level of $1053.

📅 Best time to fly

January is historically cheapest at $404

Historically, January is the cheapest month to fly from Seattle to Lisbon, with a median price of $404.

⏱️ Flight duration

Flights typically take 29h 31m

The typical flight duration from Seattle to Lisbon is 29 hours and 31 minutes, including layovers.

✈️ Airlines & availability

Connecting flights are dominant

Direct flights are not common; 0% of recent flights were direct, with most having 2 stopovers.

🏆 Airline highlight

Icelandair offers frequent deals

Icelandair has 48 direct deals, making it a frequent option for this route.

🎯 Booking tip

Deals are frequent for this route

Deals for flights from Seattle to Lisbon are frequent, appearing often over a 30-day window.

Seattle main airports to depart from

Seattle–Tacoma International (SEA)

Cheapest

Fly from Seattle–Tacoma International for direct or connecting flights to Lisbon.

📍 ~20 km from Seattle (reachable by car or train)

💸 Flights from ~$702

Lisbon main airports to arrive at

Lisbon Portela (LIS)

Cheapest

Lisbon Portela Airport is the primary gateway to Lisbon, offering direct access to the city and surrounding areas.

📍 ~7 km from city center (reachable by metro, bus, or car)

💸 Flights from ~$702

Airports nearby Lisbon used as alternative

Porto (OPO)

Porto (OPO) is a major international hub with an extensive route network comparable to Lisbon.

📍 ~280 km from Lisbon (reachable by train or car, ~3 hours travel time)

💸 Flights from ~$734

Business & First Class Flight Deals to Lisbon

94% AI deal score

$6,510

$3,376

Save $3,134

Frequently Asked Questions About Flights to Lisbon

To find more affordable flights, consider being flexible with your travel dates and times. Using flight comparison sites can help you compare prices across various airlines and booking platforms. Setting up price alerts may also notify you when fares drop for your desired route.

Booking in advance often provides more options and potentially better prices, especially for international routes. However, prices can fluctuate, so monitoring fares over time may help you identify a good deal. Mid-week bookings are sometimes associated with lower prices.

Comparing nearby airports at both your origin and destination can sometimes reveal more affordable flight options. While it may add to your ground travel time, the savings on airfare could be significant. Always factor in the cost and convenience of transportation to and from alternative airports.

Seattle to Lisbon: Overview

Insights for flights from Seattle to Lisbon

How much is a round trip from Seattle to Lisbon

Regular price: $623 - $1,467

Prices for flights from Seattle to Lisbon are currently below the regular range.

The regular price range for flights from Seattle to Lisbon is $623 to $1467. The current lowest deal is $612 with Icelandair for travel from Oct 23-Oct 29.

now $612

Low $623

High $1,467

The cheapest time to fly from Seattle to Lisbon

January

Cheapest

Flights from $404

June

Most Expensive

Flights from $1,307

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec