£465 Cheap Flights from Lisbon (LIS) to Portland (PDX)

View £465 flight on Mon, 9 Nov 2026Opens in a new window

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

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

Prices were available within the past 7 days and start at £465 for one-way flights and £747 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Swiss International Air Lines
Thu, 15 Oct - Mon, 19 Oct
LIS
Lisbon
PDX
Portland
£747 Return, found 4 days ago
£747
Return
found 4 days ago
Select Swiss International Air Lines flight, departing Thu, 15 Oct from Lisbon to Portland, returning Mon, 19 Oct, priced at £747 found 4 days ago
KLM
Thu, 15 Oct - Mon, 19 Oct
LIS
Lisbon
PDX
Portland
£748 Return, found 4 days ago
£748
Return
found 4 days ago
Select KLM flight, departing Thu, 15 Oct from Lisbon to Portland, returning Mon, 19 Oct, priced at £748 found 4 days ago
British Airways
Thu, 15 Oct - Mon, 19 Oct
LIS
Lisbon
PDX
Portland
£749 Return, found 4 days ago
£749
Return
found 4 days ago
Select British Airways flight, departing Thu, 15 Oct from Lisbon to Portland, returning Mon, 19 Oct, priced at £749 found 4 days ago
British Airways
Thu, 15 Oct - Mon, 19 Oct
LIS
Lisbon
PDX
Portland
£751 Return, found 4 days ago
£751
Return
found 4 days ago
Select British Airways flight, departing Thu, 15 Oct from Lisbon to Portland, returning Mon, 19 Oct, priced at £751 found 4 days ago
British Airways
Thu, 15 Oct - Mon, 19 Oct
LIS
Lisbon
PDX
Portland
£753 Return, found 4 days ago
£753
Return
found 4 days ago
Select British Airways flight, departing Thu, 15 Oct from Lisbon to Portland, returning Mon, 19 Oct, priced at £753 found 4 days ago
Iberia
Thu, 15 Oct - Mon, 19 Oct
LIS
Lisbon
PDX
Portland
£755 Return, found 4 days ago
£755
Return
found 4 days ago
Select Iberia flight, departing Thu, 15 Oct from Lisbon to Portland, returning Mon, 19 Oct, priced at £755 found 4 days ago
Iberia
Thu, 15 Oct - Mon, 19 Oct
LIS
Lisbon
PDX
Portland
£757 Return, found 4 days ago
£757
Return
found 4 days ago
Select Iberia flight, departing Thu, 15 Oct from Lisbon to Portland, returning Mon, 19 Oct, priced at £757 found 4 days ago
British Airways
Thu, 15 Oct - Mon, 19 Oct
LIS
Lisbon
PDX
Portland
£759 Return, found 4 days ago
£759
Return
found 4 days ago
Select British Airways flight, departing Thu, 15 Oct from Lisbon to Portland, returning Mon, 19 Oct, priced at £759 found 4 days ago
British Airways
Thu, 15 Oct - Mon, 19 Oct
LIS
Lisbon
PDX
Portland
£763 Return, found 4 days ago
£763
Return
found 4 days ago
Select British Airways flight, departing Thu, 15 Oct from Lisbon to Portland, returning Mon, 19 Oct, priced at £763 found 4 days ago
Finnair
Thu, 15 Oct - Mon, 19 Oct
LIS
Lisbon
PDX
Portland
£766 Return, found 4 days ago
£766
Return
found 4 days ago
Select Finnair flight, departing Thu, 15 Oct from Lisbon to Portland, returning Mon, 19 Oct, priced at £766 found 4 days ago

Frequently asked questions

How much is a flight from Lisbon/Portela Airport to PDX?
If you're travelling between Humberto Delgado Airport (LIS) and PDX Airport, round-trip journeys start from £747. This figure is based on airfares available within the last 7 days on Expedia for flights departing within the next year, so don't let a good deal pass you by. Book today and save yourself both money and time. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Lisbon Airport to PDX Airport?
The majority of flights can be cancelled online, but each airline has different terms and conditions. If you do need to cancel your flight, check out our Customer Service Portal and follow the instructions.
How do I find cheap flights from Lisbon Airport to Portland Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Lisbon Airport to Portland Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from LIS to Portland Intl. Airport (PDX)?
With around 8,500 kilometres separating Lisbon/Portela Airport and Portland Intl. Airport (PDX), your flight will be a long one. Pack wisely to make your time in the air more comfortable. Things like a sleep mask and a good neck pillow should be in your hand luggage.
Which airlines fly direct from Lisbon/Portela Airport to PDX?
If you want to travel straight from Lisbon Airport to PDX, you'll need to book a flight with at least one stop. Unfortunately, there aren't any airlines that fly directly between these airports.
Are Humberto Delgado Airport (LIS) to Portland Airport flight tickets cheaper when they're purchased at the last minute?
Fares from Lisbon Airport to PDX Airport are available up to 12 months prior to departure on Expedia. And although you may occasionally score a great last-minute deal, it's never a sure thing. Also, booking your flights well in advance means you'll have more options — and you can avoid ending up with the dreaded middle seat! We're always updating our fares to bring you the best bargains, so keep checking in for all the latest specials.

Frequently asked questions

How do I find cheap flights from Lisbon (LIS-Humberto Delgado) to Portland, OR (PDX-Portland Intl.)?
To find a cheap flight from Lisbon (LIS-Humberto Delgado) to Portland, OR (PDX-Portland Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Lisbon (LIS-Humberto Delgado) to Portland, OR (PDX-Portland Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Lisbon (LIS-Humberto Delgado) to Portland, OR (PDX-Portland Intl.)?
There are approximately 51 connecting flights per day from Lisbon (LIS-Humberto Delgado) to Portland, OR (PDX-Portland Intl.). Some common connection points include Adolfo Suarez Madrid-Barajas (MAD), Heathrow (LHR), and Frankfurt Intl. (FRA).
What is the earliest flight from Lisbon (LIS-Humberto Delgado) to Portland, OR (PDX-Portland Intl.)?
The earliest flight from Lisbon (LIS-Humberto Delgado) to Portland, OR (PDX-Portland Intl.) typically departs at approximately 5:00 AM local time, operated by KLM and Delta. This is a seasonal service active in June, July, and August. An early departure like this can help maximise your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Lisbon (LIS-Humberto Delgado) to Portland, OR (PDX-Portland Intl.)?
If you're flying from Lisbon (LIS-Humberto Delgado) to Portland, OR (PDX-Portland Intl.), you'll generally find the most flight options on a Saturday, with around 50 flights available. This gives you plenty of choices for your travel plans. Major airlines on this route include TAP Air Portugal, British Airways, and Delta Air Lines. Looking at the week, Saturday offers notably more flight options compared to other days, making it a good day to consider for your departure.
What are the most popular departure times for flights from Lisbon (LIS-Humberto Delgado) to Portland, OR (PDX-Portland Intl.)?
The most popular departure times for flights from Lisbon (LIS-Humberto Delgado) to Portland, OR (PDX-Portland Intl.) are in the morning, between 9am and 12pm. Approximately 38% of passengers prefer this time window. Many major carriers, including American Airlines, Delta Air Lines and United Airlines, offer flights during this window. These times work well because you can get an early start to your journey.
How long does it take to fly from Lisbon (LIS-Humberto Delgado) to Portland, OR (PDX-Portland Intl.)?
Flying from LIS to PDX with a connection usually takes about 18 hours 30 minutes, traveling roughly 5,300 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Lisbon (LIS-Humberto Delgado) to Portland, OR (PDX-Portland Intl.)?
Select the "Business class" and "First class" filters when looking for LIS to PDX flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Lisbon (LIS-Humberto Delgado) to Portland, OR (PDX-Portland Intl.) flight with Expedia?
It's easy to earn miles on a Lisbon (LIS-Humberto Delgado) to Portland, OR (PDX-Portland Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia. *Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Portland from Humberto Delgado (LIS)?
When traveling from Humberto Delgado (LIS) to Portland, you can fly into Portland Intl. (PDX) and Portland Intl. Jetport (PWM). Some flights may connect through major hubs like Heathrow (LHR), Adolfo Suarez Madrid-Barajas (MAD), Frankfurt Intl. (FRA) before reaching Portland. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Lisbon (LIS-Humberto Delgado) to Portland, OR (PDX-Portland Intl.) at the last minute?
Typically, booking a last minute flight from Lisbon (LIS-Humberto Delgado) to Portland, OR (PDX-Portland Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Lisbon (LIS-Humberto Delgado) to Portland, OR (PDX-Portland Intl.) flight and hotel package?
Securing a Lisbon (LIS-Humberto Delgado) to Portland, OR (PDX-Portland Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Lisbon (LIS-Humberto Delgado) to Portland, OR (PDX-Portland Intl.)?
If you booked your Lisbon (LIS-Humberto Delgado) to Portland, OR (PDX-Portland Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Humberto Delgado
Destination airport
Portland Intl.
Airlines serving
Aer Lingus, Air Canada, Air France, British Airways, Finnair, Iberia, KLM, Lufthansa, Swiss International Air Lines
Return price
£746
Distance
8478 km

Book with confidence

Compare flights from Lisbon to Portland easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Lisbon to Portland. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Portland Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Humberto Delgado to Portland Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Humberto Delgado (LIS) to Portland Intl. (PDX)

The easiest way to view the best deals on flights from Lisbon to Portland today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Humberto Delgado to Portland Intl. start at just £747 and range up to £766.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Lisbon and Portland
  • booking your flight during October, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Lisbon to Portland flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Humberto Delgado to Portland Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Lisbon to Portland easily and book with confidence

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