What is the cheapest airline that flies from Portland to Lisbon Humberto Delgado?

Lufthansa, United Airlines, and Icelandair are the most popular carriers operating from Portland to Lisbon Humberto Delgado

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

Amsterdam (AMS) has the shortest average layover time for this route: 2h 05m.

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 17m.

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

Flights via Reykjavik (KEF) offer the lowest average round-trip price of $484.

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

London (LHR) was the most common stop: 67% of momondo users choosing 1-stop flights on this route connected there.

What airlines fly to Lisbon?

British Airways, Delta and United Airlines 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 43% of people opting to fly with this airline when traveling to Lisbon. Keep in mind that there are 11 different airlines that fly to Lisbon on a routine basis, so you have a few additional options to choose from.

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 11 as of September 2025.

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.

$295 Cheap Flights from Portland to Lisbon in 2025/26

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Find the cheapest flights from Portland to Lisbon

Round-trip

One-way

Last minute

Cheap round-trip flights

6:15 am - 9:20 amPDX-LIS

19h 05m2 stops

5:00 am - 12:26 amLIS-PDX

27h 26m2 stops

$526Multiple Airlines

Find Deal

Mon, Oct 20 - Wed, Nov 5

7:00 am - 3:40 pmPDX-LIS

24h 40m2 stops

7:00 pm - 10:22 pmLIS-PDX

35h 22m2 stops

$539Scandinavian Airlines

Find Deal

Tue, Jan 27 - Sun, Feb 1

7:00 pm - 8:55 amPDX-LIS

29h 55m2 stops

11:20 am - 9:15 amLIS-PDX

29h 55m2 stops

$544Air Canada

Find Deal

Mon, Dec 1 - Fri, Dec 12

5:00 am - 8:55 amPDX-LIS

19h 55m2 stops

11:20 am - 11:48 amLIS-PDX

32h 28m2 stops

$550United Airlines

Find Deal

Tue, Dec 2 - Tue, Dec 9

11:59 pm - 8:10 amPDX-LIS

24h 11m2 stops

10:55 am - 11:57 amLIS-PDX

33h 02m2 stops

$555United Airlines

Find Deal

Sat, Jan 17 - Thu, Jan 29

6:20 am - 10:45 amPDX-LIS

20h 25m2 stops

10:00 am - 12:06 pmLIS-PDX

34h 06m1 stop

$565Delta

Find Deal

Mon, Oct 20 - Wed, Nov 5

7:05 am - 9:00 amPDX-LIS

17h 55m1 stop

10:00 am - 8:45 pmLIS-PDX

18h 45m1 stop

$573KLM

Find Deal

Tue, Dec 2 - Tue, Dec 9

7:05 am - 8:55 amPDX-LIS

17h 50m1 stop

3:30 pm - 11:25 amLIS-PDX

27h 55m1 stop

$589KLM

Find Deal

Sun, Nov 16 - Tue, Nov 25

5:45 pm - 5:45 pmPDX-LIS

16h 00m1 stop

12:55 pm - 3:55 pmLIS-PDX

35h 00m1 stop

$591British Airways

Find Deal

Sun, Nov 30 - Thu, Dec 11

5:45 pm - 6:55 pmPDX-LIS

17h 10m1 stop

7:05 am - 4:55 pmLIS-PDX

16h 50m1 stop

$598British Airways

Find Deal

Mon, Mar 2 - Mon, Mar 16

United Airlines flights from Portland to Lisbon

Our best United Airlines deals on Portland to Lisbon flight tickets

United Airlines

Dec 2

PDX5:00 amPortland

19h 55m

2 stops

LIS8:55 amLisbon Humberto Delgado

Dec 9

LIS11:20 amLisbon Humberto Delgado

32h 28m

2 stops

PDX11:48 amPortland

$550

Find similar

United Airlines

Jan 17

PDX11:59 pmPortland

24h 11m

2 stops

LIS8:10 amLisbon Humberto Delgado

Jan 29

LIS10:55 amLisbon Humberto Delgado

33h 02m

2 stops

PDX11:57 amPortland

$555

Find similar

United Airlines

Dec 2

PDX5:00 amPortland

19h 55m

2 stops

LIS8:55 amLisbon Humberto Delgado

Dec 10

LIS11:00 amLisbon Humberto Delgado

32h 48m

2 stops

PDX11:48 amPortland

$557

Find similar

KLM flights from Portland to Lisbon

Our best KLM deals on Portland to Lisbon flight tickets

KLM

Dec 2

PDX7:05 amPortland

17h 55m

1 stop

LIS9:00 amLisbon Humberto Delgado

Dec 9

LIS10:00 amLisbon Humberto Delgado

18h 45m

1 stop

PDX8:45 pmPortland

$573

Find similar

KLM

Nov 16

PDX7:05 amPortland

17h 50m

1 stop

LIS8:55 amLisbon Humberto Delgado

Nov 25

LIS3:30 pmLisbon Humberto Delgado

27h 55m

1 stop

PDX11:25 amPortland

$589

Find similar

KLM

Oct 20

PDX7:12 amPortland

16h 48m

1 stop

LIS8:00 amLisbon Humberto Delgado

Oct 28

LIS9:30 amLisbon Humberto Delgado

33h 55m

1 stop

PDX12:25 pmPortland

$603

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 10/20

6:15 am-9:20 am

2 stops19h 05m

Lisbon Humberto Delgado

Wed 11/5

5:00 am-12:26 am

2 stops27h 26m

$526

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Tue 1/27

7:00 am-3:40 pm

2 stops24h 40m

Lisbon Humberto Delgado

Sun 2/1

7:00 pm-10:22 pm

2 stops35h 22m

$539

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 12/1

7:00 pm-8:55 am

2 stops29h 55m

Lisbon Humberto Delgado

Fri 12/12

11:20 am-9:15 am

2 stops29h 55m

$544

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Tue 12/2

5:00 am-8:55 am

2 stops19h 55m

Lisbon Humberto Delgado

Tue 12/9

11:20 am-11:48 am

2 stops32h 28m

$550

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sat 1/17

11:59 pm-8:10 am

2 stops24h 11m

Lisbon Humberto Delgado

Thu 1/29

10:55 am-11:57 am

2 stops33h 02m

$555

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 10/20

6:20 am-10:45 am

2 stops20h 25m

Lisbon Humberto Delgado

Wed 11/5

10:00 am-12:06 pm

1 stop34h 06m

$565

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Tue 12/2

7:05 am-9:00 am

1 stop17h 55m

Lisbon Humberto Delgado

Tue 12/9

10:00 am-8:45 pm

1 stop18h 45m

$573

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sun 11/16

7:05 am-8:55 am

1 stop17h 50m

Lisbon Humberto Delgado

Tue 11/25

3:30 pm-11:25 am

1 stop27h 55m

$589

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sun 11/30

5:45 pm-5:45 pm

1 stop16h 00m

Lisbon Humberto Delgado

Thu 12/11

12:55 pm-3:55 pm

1 stop35h 00m

$591

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 3/2

5:45 pm-6:55 pm

1 stop17h 10m

Lisbon Humberto Delgado

Mon 3/16

7:05 am-4:55 pm

1 stop16h 50m

$598

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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 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 $616. 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 $696.

What is the cheapest day to depart on your flight to Lisbon?

Our data shows that Wednesday is the least expensive day to fly to Lisbon. Tickets to fly out on this day can be as low as $864. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Portland to Lisbon for around $1,041.

What is the cheapest time of day to depart on your flight to Lisbon?

The cheapest time of day to fly to Lisbon is in the afternoon when flights can be purchased for as low as $622. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $981 on average. Flights to Lisbon from Portland in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

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 $922 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 $792 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 September 2025, prices for Portland to Lisbon flights are approximately 37% cheaper 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

Direct flights	None

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

Search flight deals

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 15h 40m, 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 11 as of September 2025.
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 35% of all bookings. The subsequent popular airlines are Delta at 18%, United Airlines at 16%, and KLM at 13%.

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 $434	Free Cancellation	Rating 7.0 545 reviews	Search Icelandair flights
Scandinavian Airlines	PriceFrom $563	Free Cancellation	Rating 7.4 1,486 reviews	Search Scandinavian Airlines flights
American Airlines	PriceFrom $564	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Lufthansa	PriceFrom $578	Free Cancellation	Rating 6.8 7,409 reviews	Search Lufthansa flights
Delta	PriceFrom $581	Free Cancellation	Rating 7.9 7,961 reviews	Search Delta flights
KLM	PriceFrom $587	Free Cancellation	Rating 7.8 1,386 reviews	Search KLM flights
Air Canada	PriceFrom $591	Free Cancellation	Rating 7.1 10,000 reviews	Search Air Canada flights
Virgin Atlantic	PriceFrom $595	Free Cancellation	Rating 7.4 664 reviews	Search Virgin Atlantic flights
United Airlines	PriceFrom $595	Free Cancellation	Rating 7.4 8,926 reviews	Search United Airlines flights
Air France	PriceFrom $643	Free Cancellation	Rating 7.4 1,468 reviews	Search Air France flights

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Ericeira

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Setúbal

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Almada

Leiria

Tomar

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Sesimbra

Evora

Figueira da Foz

Zambujeira do Mar

Torres Vedras

Batalha

Óbidos

Comporta

Costa da Caparica

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 $295

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 10/20. 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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Filter for what you want

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Find the cheapest flights from Portland to Lisbon

Cheap round-trip flights

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Cheap last minute flights

United Airlines flights from Portland to Lisbon

Our best United Airlines deals on Portland to Lisbon flight tickets

KLM flights from Portland to Lisbon

Our best KLM deals on Portland to Lisbon flight tickets

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Use the filters below to find and compare flights from Portland to Lisbon that are best for you.

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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

What is the cheapest month to fly to Lisbon?

What is the cheapest day to depart on your flight to Lisbon?

Our data shows that Wednesday is the least expensive day to fly to Lisbon. Tickets to fly out on this day can be as low as $864. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Portland to Lisbon for around $1,041.

What is the cheapest time of day to depart on your flight to Lisbon?

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

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 September 2025, prices for Portland to Lisbon flights are approximately 37% cheaper when compared to flights at the same time last year.

What is the cheapest airline that flies from Portland to Lisbon Humberto Delgado?

Lufthansa, United Airlines, and Icelandair are the most popular carriers operating from Portland to Lisbon Humberto Delgado

What airlines fly to Lisbon?

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

London (LHR) was the most common stop: 67% of momondo users choosing 1-stop flights on this route connected there.

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

Flights via Reykjavik (KEF) offer the lowest average round-trip price of $484.

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 17m.

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

Amsterdam (AMS) has the shortest average layover time for this route: 2h 05m.

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

Direct flights

How far is Portland to Lisbon Humberto Delgado by plane?

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

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

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

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

What is the most popular airline 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?

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

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

How can momondo help me find flights 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?

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

Airports servicing Portugal