Seattle (SEA) → Lisbon (LIS)
About Seattle to Lisbon Flights
Discover the best flights from Seattle to Lisbon, covering 8,372 km in approximately 10h 58m. Seattle (SEA) to Lisbon (LIS) is one of the major long-haul routes connecting United States and Portugal. With 7 major airlines operating this route, travelers have plenty of options to choose from. Whether you're traveling for business or leisure, our comprehensive guide helps you find the best deals, understand seasonal price variations, and choose the right airline for your journey from Seattle to Lisbon.
12-Month Price History
Flight prices from Seattle to Lisbon vary significantly throughout the year. February typically offers the best deals with average prices around $1490, while July sees the highest prices, averaging $2538. Savvy travelers can save up to 41% by choosing their travel dates wisely.
Best Time to Fly
Cheapest Month
February
Save up to 40% on average
Most Expensive
July
Peak season pricing
Book in Advance
99 days
For best prices
Booking Tips
For the best prices on Seattle to Lisbon flights, we recommend booking 131 days in advance. International flights typically see price increases as the departure date approaches, so early booking is advisable. Tuesday and Wednesday departures often offer the lowest fares, while Friday and Sunday flights tend to be more expensive due to business and leisure travel demand. Consider flying early morning or late evening for additional savings, as these off-peak times usually have lower demand.
Airlines Serving This Route
| Airline | Economy | Business | First |
|---|---|---|---|
United Airlines UA | $1990 | $8320 | $12200 |
Alaska Airlines AS | $2040 | $7290 | $14450 |
American Airlines AA | $2230 | $7870 | $14030 |
Portugália Airlines PGA | $2370 | $7980 | $11970 |
Portugália Airlines NI | $2620 | $9370 | $12490 |
TAP Air Portugal TP | $2690 | $7180 | $14250 |
Delta Air Lines DL | $2690 | $9210 | $15010 |
United Airlines
UA
Economy
$1990
Business
$8320
First
$12200
Alaska Airlines
AS
Economy
$2040
Business
$7290
First
$14450
American Airlines
AA
Economy
$2230
Business
$7870
First
$14030
Portugália Airlines
PGA
Economy
$2370
Business
$7980
First
$11970
Portugália Airlines
NI
Economy
$2620
Business
$9370
First
$12490
TAP Air Portugal
TP
Economy
$2690
Business
$7180
First
$14250
Delta Air Lines
DL
Economy
$2690
Business
$9210
First
$15010
Prices shown are estimates based on historical data. Actual prices may vary based on dates, availability, and current promotions.
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Frequently Asked Questions
How long is the flight from Seattle to Lisbon?
The flight time from Seattle (SEA) to Lisbon (LIS) is approximately 10 hours and 58 minutes. This duration is for direct flights and may vary depending on aircraft type, weather conditions, and air traffic.
What is the distance between Seattle and Lisbon?
The aerial distance between Seattle and Lisbon is 8,372 kilometers (5,202 miles). This is the straight-line distance, which is used to calculate flight times.
Which airlines fly from Seattle to Lisbon?
Several airlines operate flights between Seattle and Lisbon, including Delta Air Lines, Alaska Airlines, TAP Air Portugal and 4 more airlines. Most flights on this route include one or more stops.
What is the cheapest month to fly from Seattle to Lisbon?
Based on historical data, February typically offers the lowest airfares for flights from Seattle to Lisbon. However, prices can vary based on holidays, events, and airline promotions. We recommend checking our price calendar for the most up-to-date information.
How far in advance should I book my flight to Lisbon?
For the best prices on Seattle to Lisbon flights, we recommend booking 78 days in advance. International flights generally require earlier booking than domestic routes.
Do I need a visa to travel from Seattle to Lisbon?
Visa requirements depend on your nationality and the purpose of your visit. Citizens of United States traveling to Portugal should check the latest visa requirements. Visit our partner site visarequirements.io for detailed visa information.
What is the time difference between Seattle and Lisbon?
Seattle operates on America/Los_Angeles time zone, while Lisbon is in the Europe/Lisbon time zone. For current time differences and to plan your schedule, visit our partner site timezig.com for accurate timezone conversions.