Cheap flights from Lisbon to Seattle from $313
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Lisbon to Seattle departing on 9/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from Lisbon to Seattle
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Seattle?
In general, December is the cheapest month to fly from Lisbon to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $795. If you don’t want to visit Seattle in December, then you should wait until April to fly from Lisbon, when ticket prices are also cheap, with an average price of $800.
What is the cheapest day to depart on your flight to Seattle?
On average, the least expensive day to fly to Seattle from Lisbon is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $800. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Saturday is the most expensive day to depart from Lisbon because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,074.
What is the cheapest time of day to depart on your flight to Seattle?
Flying to Seattle from Lisbon in the evening is the least expensive time of day to depart. momondo users have found prices as low as $718 when looking at flights departing in the evening. Flights to Seattle are more costly in the morning, with an average ticket price of $873. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.
How far in advance should I book a flight to Seattle?
You are more likely to see cheaper flights to Seattle from Lisbon when booking 26 weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $935 when searching 26 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Lisbon for as low as $781 on momondo.
What is the cheapest airline that flies from Lisbon Humberto Delgado to Seattle/Tacoma Intl?
Icelandair, Aer Lingus, and Turkish Airlines are the most popular carriers operating from Lisbon Humberto Delgado to Seattle/Tacoma Intl
What airlines fly to Seattle?
British Airways, United Airlines and Delta are the top three most popular airlines that fly to Seattle from Lisbon according to our data. British Airways is the first choice among our users, with 46% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 5 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.
When to book flights from Lisbon to Seattle
Cheap Lisbon to Seattle (LIS to SEA) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Lisbon to Seattle
How far is Lisbon Humberto Delgado to Seattle/Tacoma Intl by plane?
A flight from Lisbon Humberto Delgado to Seattle/Tacoma Intl will travel around 5195.1 mi. In terms of flight time, this usually takes a little over 14h 35m.
When did momondo last update prices for flights from Lisbon Humberto Delgado Airport to Seattle/Tacoma Intl Airport?
Prices for flights from Lisbon Humberto Delgado Airport to Seattle/Tacoma Intl Airport refresh daily.
How many operators does momondo search for flights from Lisbon Humberto Delgado Airport to Seattle/Tacoma Intl Airport?
There are 5 operators available for flights from Lisbon Humberto Delgado Airport to Seattle/Tacoma Intl Airport as of June 2025.
How old do you have to be to fly from Lisbon Humberto Delgado Airport to Seattle/Tacoma Intl Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lisbon Humberto Delgado Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Lisbon to Seattle?
momondo data reveals that the most frequently booked airline on the route from Lisbon to Seattle is British Airways, representing 40% of all bookings. The subsequent popular airlines are United Airlines at 18%, Delta at 15%, and American Airlines at 14%.
Best airlines flying from Lisbon to Seattle
Compare and see reviews for airlines that fly from Lisbon to Seattle with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $717 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $720 | Free Cancellation | Rating 6.6 7,008 reviews | |||
| PriceFrom $738 | Free Cancellation | Rating 7.4 8,790 reviews | |||
| PriceFrom $762 | Free Cancellation | Rating 7.5 1,463 reviews | |||
| PriceFrom $775 | Free Cancellation | Rating 8.0 7,950 reviews |
Traveling to a place near Seattle?
Book flights to Seattle if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Lisbon to Seattle?
Finding the right flight to Seattle from Lisbon is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Seattle quick and easy, saving you time and money.
Can I find flights from Lisbon to Seattle with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to Seattle from Lisbon with this policy.
How can momondo help me find flights from Lisbon to Seattle?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Lisbon to Seattle.
I’m not ready to book a flight from Lisbon to Seattle right now. Can momondo alert me if prices change?
If you are simply researching potential flights to Seattle, momondo offers a useful price alert feature which will track prices for flights to Seattle from Lisbon and alert you when they change.