$300 Find Cheap Flights from Seattle to Lisbon - Compare and Save

Four cabin classes are available on flights from Seattle to Lisbon:

• Economy Class
• Premium Economy Class
• Business Class
• First Class

Prices vary by airline.

A nonstop flight from Seattle to Lisbon takes 00m, covering 5,199 miles.

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

Round-trip flights from Seattle to Lisbon range from $670 to $1,116, with an average of $882 over the past 12 months. Anything below $670 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) are 8% below the route average of $882. Booking late can sometimes save you money, but inventory is limited.

One-way fares from Seattle to Lisbon are currently lower than usual. Average one-way flight prices are about $376, which is 29% below the typical average for this route.

Lisbon Humberto Delgado Airport (LIS) hosts 5 major car rental companies, with daily rates averaging $23 for economy cars. Top options include:

• Klass Wagen
• Goldcar Rental SP
• Drive on Holiday
• GREEN MOTION
• Guerin

Flights from Seattle to Lisbon usually depart from Seattle/Tacoma Intl (SEA) and arrive at Lisbon Humberto Delgado (LIS).

One-stop flights from Seattle to Lisbon most commonly connect through:

• London Heathrow (LHR) - 32% of one-stop connections
• Paris Charles de Gaulle (CDG) - 24% of one-stop connections
• Philadelphia (PHL) - 7% of one-stop connections
• Reykjavik Keflavik Intl (KEF) - 7% of one-stop connections

Yes. Flexible dates can save you up to 20% on flights from Seattle to Lisbon. Wednesday is the cheapest departure day at $825 round-trip on average, while Friday is the most expensive at $1,028, a difference of $203.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

Flying via Paris Charles de Gaulle (CDG) gives the shortest average 1-stop total travel time at 14h 48m, compared with 15h 50m via Munich Franz Josef Strauss (MUC) and 15h 56m via London Heathrow (LHR).

Lisbon is 8 hours ahead of Seattle (Western European Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

Some of the most popular sights in Lisbon are Chiado, Commerce Square and Praça dos Restauradores. These are among the most viewed places in Lisbon on KAYAK.

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.

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.

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.

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.