Cheap Flights from Lisbon (LIS) to Portland (PDX)

Popular airlines from Humberto Delgado Airport (LIS) to Portland International Airport (PDX)

Find the cheapest month to fly from Lisbon (LIS) to Portland (PDX)

February is typically the cheapest month to fly

From U$S 635 - U$S 916 per traveler.

Graph displaying average flight prices per month

Flights from Lisbon (LIS) to Portland (PDX)
Origin airport
Humberto Delgado
Destination airport
Portland Intl.
Distance
5299 mi

Lisbon to Portland Flights

The cheapest times to fly from Lisbon to Portland

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Lisbon to Portland are during the month of . You can find some of the cheapest flights from Lisbon to Portland with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Lisbon to Portland

Sunday is one of the best days to book for cheap flights from Lisbon to Portland: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Lisbon to Portland

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Lisbon to Portland in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Lisbon to Portland flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Lisbon to Portland airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Humberto Delgado Airport (LIS) to Portland Intl. Airport (PDX) cost?
Grab a cheap one-way flight or cheap return flight from Humberto Delgado Airport (LIS) to Portland Intl. Airport (PDX) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Humberto Delgado Airport (LIS) to Portland Intl. Airport (PDX)?
is the least expensive month to fly from LIS to PDX. Timing your trip outside of the busy season is often the key to better flight prices.
What is the cheapest airline that flies from Humberto Delgado Airport (LIS) to Portland Intl. Airport (PDX)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find the carrier with the cheapest LIS to PDX flight.
How many flights per day from Humberto Delgado Airport (LIS) to Portland Intl. Airport (PDX)?
You'll have to catch a flight with a layover when traveling from Humberto Delgado Airport (LIS) to Portland Intl. Airport (PDX). Direct flights don't operate daily on this route. However, just filter your search to include one or more stops to find the best option for your trip.
What day of the week has the most flights from LIS to PDX?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Humberto Delgado Airport (LIS) to Portland Intl. Airport (PDX)?
Choose a flight from Humberto Delgado Airport (LIS) to Portland Intl. Airport (PDX) that leaves before 3 PM to reduce the likelihood of delays. Later departures are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Humberto Delgado Airport (LIS) to Portland Intl. Airport (PDX) last-minute?
Holding off until right before your break to book your flight from LIS to PDX generally means paying more. While you may come across some last-minute deals, there's no guarantee. Keep your travel schedule open for a better chance of getting a bargain.
Is it cheaper to book a LIS to PDX flight and hotel package?
Compared with arranging hotels and flights separately, booking a LIS to PDX flight and hotel package with Expedia could lead to significant savings. Better yet, managing everything in one place will take the stress out of planning your trip. Simply pick your flights and choose from our extensive range of hotels, then customize your trip with extras like activities and car rentals.
Can I cancel or change the date of my flight from Humberto Delgado Airport (LIS) to Portland Intl. Airport (PDX)?
You can usually reschedule or cancel your LIS to PDX flight. However, for bookings made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find further details on our Customer Service portal.

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*Available to One Key members.