Which airport is the most popular layover for flights between Portland and Lisbon?

London (LHR) was the most common stop: 62% of momondo users choosing 1-stop flights on this route connected there.

What airlines fly to Lisbon?

British Airways, Delta and KLM are the top three most popular airlines that fly to Lisbon from Portland according to our data. British Airways is the first choice among our users, with 52% of people opting to fly with this airline when traveling to Lisbon. Keep in mind that there are 8 different airlines that fly to Lisbon on a routine basis, so you have a few additional options to choose from.

Which layover airport offers the lowest fares from Portland to Lisbon?

Flights via Reykjavik (KEF) offer the lowest average round-trip price of $399.

Which layover airport has the shortest connection time from Portland to Lisbon?

London (LHR) has the shortest average layover time for this route: 2h 14m.

Which layover airport has the shortest travel time from Portland to Lisbon?

Flights connecting via Amsterdam (AMS) have the shortest average one-way travel time: 14h 25m.

When did momondo last update prices for flights from Portland Airport to Lisbon Humberto Delgado Airport?

Prices for flights from Portland Airport to Lisbon Humberto Delgado Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Portland Airport to Lisbon Humberto Delgado Airport?

The number of operators available for flights from Portland Airport to Lisbon Humberto Delgado Airport is 8 as of April 2026.

How old do you have to be to fly from Portland Airport to Lisbon Humberto Delgado Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Lisbon Humberto Delgado Airport.

What documentation or ID do you need to fly to Lisbon Humberto Delgado Airport?

The travel and health documents you'll need for your trip to Lisbon Humberto Delgado Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Lisbon Humberto Delgado Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$345 Cheap Flights from Portland to Lisbon in 2026

Q: What is the typical price of a round-trip flight between Portland and Lisbon?

Prices are currently low for flights on this route. Typical prices usually range from $818 to $576. The lowest price recently found on this route was $704.

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Find the cheapest flights from Portland to Lisbon

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

3:30 pm - 9:20 am

PDX

LIS

33h 50m

2 stops

5:00 am - 6:30 pm

LIS

PDX

21h 30m

2 stops

$704Air Canada

Wed, Oct 14 - Tue, Nov 3

5:30 am - 9:20 am

PDX

LIS

19h 50m

2 stops

5:00 am - 9:25 am

LIS

PDX

36h 25m

2 stops

$708Air Canada

Tue, Oct 13 - Mon, Nov 2

3:30 pm - 9:20 am

PDX

LIS

33h 50m

2 stops

1:00 pm - 12:54 am

LIS

PDX

43h 54m

2 stops

$711Air Canada

Wed, Oct 14 - Thu, Nov 5

5:30 am - 9:20 am

PDX

LIS

19h 50m

2 stops

1:00 pm - 12:02 am

LIS

PDX

43h 02m

2 stops

$715Air Canada

Tue, Oct 13 - Thu, Nov 5

9:40 am - 11:15 am

PDX

LIS

17h 35m

2 stops

11:25 am - 11:25 am

LIS

PDX

32h 00m

1 stop

$785Delta

Tue, Oct 13 - Thu, Nov 5

7:30 pm - 11:00 pm

PDX

LIS

19h 30m

1 stop

6:35 am - 10:47 pm

LIS

PDX

24h 12m

2 stops

$789Multiple Airlines

Tue, Apr 28 - Wed, May 13

7:30 pm - 11:00 pm

PDX

LIS

19h 30m

1 stop

7:20 am - 5:40 pm

LIS

PDX

18h 20m

1 stop

$790British Airways

Tue, Apr 28 - Wed, May 13

10:59 pm - 11:05 am

PDX

LIS

28h 06m

2 stops

1:00 pm - 11:35 am

LIS

PDX

29h 35m

2 stops

$792Air Canada

Wed, Oct 14 - Fri, Oct 30

7:45 pm - 11:05 am

PDX

LIS

31h 20m

2 stops

5:05 am - 2:51 pm

LIS

PDX

17h 46m

2 stops

$795Air Canada

Mon, Sep 21 - Thu, Oct 1

10:56 pm - 9:20 am

PDX

LIS

26h 24m

2 stops

11:25 am - 5:38 pm

LIS

PDX

38h 13m

2 stops

$796United Airlines

Sun, Oct 4 - Wed, Oct 14

Lufthansa flights from Portland to Lisbon

Our best Lufthansa deals on Portland to Lisbon flight tickets

Lufthansa

May 2

PDX3:59 pmPortland

22h 46m

2 stops

LIS10:45 pmLisbon Humberto Delgado

May 19

LIS5:05 amLisbon Humberto Delgado

21h 40m

2 stops

PDX6:45 pmPortland

$850

Lufthansa

May 2

PDX4:15 pmPortland

32h 05m

2 stops

LIS8:20 amLisbon Humberto Delgado

May 14

LIS12:20 pmLisbon Humberto Delgado

16h 22m

1 stop

PDX8:42 pmPortland

$857

Lufthansa

May 2

PDX4:15 pmPortland

32h 05m

2 stops

LIS8:20 amLisbon Humberto Delgado

May 14

LIS11:25 amLisbon Humberto Delgado

21h 34m

2 stops

PDX12:59 amPortland

$860

KLM flights from Portland to Lisbon

Our best KLM deals on Portland to Lisbon flight tickets

KLM

Apr 19

PDX1:05 pmPortland

25h 45m

1 stop

LIS10:50 pmLisbon Humberto Delgado

Apr 27

LIS3:35 pmLisbon Humberto Delgado

27h 35m

1 stop

PDX11:10 amPortland

$852

KLM

Apr 29

PDX1:05 pmPortland

25h 45m

1 stop

LIS10:50 pmLisbon Humberto Delgado

May 8

LIS5:00 amLisbon Humberto Delgado

14h 10m

1 stop

PDX11:10 amPortland

$853

KLM

Apr 19

PDX5:05 pmPortland

17h 40m

2 stops

LIS6:45 pmLisbon Humberto Delgado

Apr 27

LIS3:35 pmLisbon Humberto Delgado

27h 35m

1 stop

PDX11:10 amPortland

$857

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 10/14

3:30 pm-9:20 am

2 stops33h 50m

Lisbon Humberto Delgado

Tue 11/3

5:00 am-6:30 pm

2 stops21h 30m

$704

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Tue 10/13

5:30 am-9:20 am

2 stops19h 50m

Lisbon Humberto Delgado

Mon 11/2

5:00 am-9:25 am

2 stops36h 25m

$708

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 10/14

3:30 pm-9:20 am

2 stops33h 50m

Lisbon Humberto Delgado

Thu 11/5

1:00 pm-12:54 am

2 stops43h 54m

$711

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Tue 10/13

5:30 am-9:20 am

2 stops19h 50m

Lisbon Humberto Delgado

Thu 11/5

1:00 pm-12:02 am

2 stops43h 02m

$715

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Tue 10/13

9:40 am-11:15 am

2 stops17h 35m

Lisbon Humberto Delgado

Thu 11/5

11:25 am-11:25 am

1 stop32h 00m

$785

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Tue 4/28

7:30 pm-11:00 pm

1 stop19h 30m

Lisbon Humberto Delgado

Wed 5/13

6:35 am-10:47 pm

2 stops24h 12m

$789

Quickest round-trip

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Tue 4/28

7:30 pm-11:00 pm

1 stop19h 30m

Lisbon Humberto Delgado

Wed 5/13

7:20 am-5:40 pm

1 stop18h 20m

$790

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 10/14

10:59 pm-11:05 am

2 stops28h 06m

Lisbon Humberto Delgado

Fri 10/30

1:00 pm-11:35 am

2 stops29h 35m

$792

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 9/21

7:45 pm-11:05 am

2 stops31h 20m

Lisbon Humberto Delgado

Thu 10/1

5:05 am-2:51 pm

2 stops17h 46m

$795

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sun 10/4

10:56 pm-9:20 am

2 stops26h 24m

Lisbon Humberto Delgado

Wed 10/14

11:25 am-5:38 pm

2 stops38h 13m

$796

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Portland to Lisbon

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

Prices

Airlines

Layovers

What is the typical price of a round-trip flight between Portland and Lisbon?

What is the cheapest month to fly to Lisbon?

In general, November is the cheapest month to fly from Portland to Lisbon. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $558. If you are unable to visit Lisbon during the month of November, then departing from Portland during the month February is also very affordable. Most momondo users find prices during this month for around $599.

How far in advance should I book a flight to Lisbon?

You are more likely to see cheaper flights to Lisbon from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Lisbon for around $815 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Lisbon from Portland for as low as $682 on momondo.

Can stopping save me money on Portland to Lisbon flights?

You could potentially save up to 27% on your flight if you consider stops on a Portland to Lisbon flight.

How have Portland to Lisbon flight prices changed over time?

As of April 2026, prices for Portland to Lisbon flights are approximately 11% more expensive when compared to flights at the same time last year.

When to book flights from Portland to Lisbon

Are you open to changing your travel dates? Check out the ideal times to fly from Portland to Lisbon according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Portland to Lisbon (PDX to LIS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Lisbon

Fastest flight time	14h 35m
Direct flights	None

The fastest flight from Portland to Lisbon takes 14h 35m

There are no direct flights from Portland to Lisbon. There are no popular flight routes from Portland to Lisbon.

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Frequently asked questions about flying from Portland to Lisbon

How far is Portland to Lisbon Humberto Delgado by plane?
The distance between Portland and Lisbon Humberto Delgado is about 5304.2 mi. Flights usually cover this in 14h 35m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Portland Airport to Lisbon Humberto Delgado Airport?
Prices for flights from Portland Airport to Lisbon Humberto Delgado Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Portland Airport to Lisbon Humberto Delgado Airport?
The number of operators available for flights from Portland Airport to Lisbon Humberto Delgado Airport is 8 as of April 2026.
How old do you have to be to fly from Portland Airport to Lisbon Humberto Delgado Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Lisbon Humberto Delgado Airport.
What documentation or ID do you need to fly to Lisbon Humberto Delgado Airport?
The travel and health documents you'll need for your trip to Lisbon Humberto Delgado Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Lisbon Humberto Delgado Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Portland to Lisbon?
momondo data reveals that the most frequently booked airline on the route from Portland to Lisbon is British Airways, representing 46% of all bookings. The subsequent popular airlines are Delta at 15%, KLM at 15%, and United Airlines at 12%.

Best airlines flying from Portland to Lisbon

Compare and see reviews for airlines that fly from Portland to Lisbon with momondo

Airline	Rating	Free Cancellation	Price
Icelandair	PriceFrom $360	Free Cancellation	Rating 7.0 634 reviews	Search Icelandair flights
KLM	PriceFrom $492	Free Cancellation	Rating 7.8 1,502 reviews	Search KLM flights
Lufthansa	PriceFrom $501	Free Cancellation	Rating 6.8 7,930 reviews	Search Lufthansa flights
British Airways	PriceFrom $511	Free Cancellation	Rating 6.7 7,893 reviews	Search British Airways flights
American Airlines	PriceFrom $524	Free Cancellation	Rating 7.1 11,606 reviews	Search American Airlines flights
United Airlines	PriceFrom $543	Free Cancellation	Rating 7.4 9,606 reviews	Search United Airlines flights
Delta	PriceFrom $551	Free Cancellation	Rating 7.9 8,427 reviews	Search Delta flights
Air Canada	PriceFrom $577	Free Cancellation	Rating 7.1 10,935 reviews	Search Air Canada flights

Sintra

Fátima

Ericeira

Nazaré

Setúbal

Peniche

Estoril

Evora

Oeiras

Sesimbra

Leiria

Figueira da Foz

Óbidos

Zambujeira do Mar

Batalha

Tomar

Comporta

Torres Vedras

Almada

Sines

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Lisbon?

Finding the right flight to Lisbon from Portland 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 Lisbon quick and easy, saving you time and money.

Can I find flights from Portland to Lisbon with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Lisbon from Portland with this policy.

How can momondo help me find flights from Portland to Lisbon?

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 Portland to Lisbon.

I’m not ready to book a flight from Portland to Lisbon right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Portland to Lisbon flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Lisbon trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Cheap flights from Portland to Lisbon from $345

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Lisbon departing on 4/29. 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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Lufthansa flights from Portland to Lisbon

Our best Lufthansa deals on Portland to Lisbon flight tickets

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How to get the cheapest flight ticket from Portland to Lisbon

What is the typical price of a round-trip flight between Portland and Lisbon?

What is the cheapest month to fly to Lisbon?

How far in advance should I book a flight to Lisbon?

Can stopping save me money on Portland to Lisbon flights?

How have Portland to Lisbon flight prices changed over time?

What airlines fly to Lisbon?

Which airport is the most popular layover for flights between Portland and Lisbon?

Which layover airport offers the lowest fares from Portland to Lisbon?

Which layover airport has the shortest travel time from Portland to Lisbon?

Which layover airport has the shortest connection time from Portland to Lisbon?

When to book flights from Portland to Lisbon

Cheap Portland to Lisbon (PDX to LIS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Lisbon

Fastest flight time

Direct flights

Frequently asked questions about flying from Portland to Lisbon

Best airlines flying from Portland to Lisbon

Compare and see reviews for airlines that fly from Portland to Lisbon with momondo

Traveling to a place near Lisbon?

Why use momondo?

An easier way to manage your Lisbon trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Portugal

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Fly your favorite airline to Lisbon

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Lisbon

List of cabin classes available on flights landing in Lisbon. Availability may vary depending on flight origin and airline.

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