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

London (LHR) was the most common stop: 65% of momondo users choosing 1-stop flights on this route connected there.

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

Lufthansa is the most popular carrier operating from Portland to Lisbon Humberto Delgado

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 44% 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 $459.

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: 13h 40m.

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

Amsterdam (AMS) has the shortest average layover time for this route: 1h 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 9 as of December 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.

$438 Cheap Flights from Portland to Lisbon in 2025/26

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9:50 am - 7:55 am

PDX

LIS

38h 05m2 stops

5:00 am - 6:49 pm

LIS

PDX

21h 49m2 stops

$478Lufthansa

mié., feb. 4 - mié., feb. 25

5:45 pm - 5:45 pm

PDX

LIS

16h 00m1 stop

6:40 pm - 3:55 pm

LIS

PDX

29h 15m1 stop

$484British Airways

dom., feb. 8 - dom., feb. 15

5:45 pm - 9:55 pm

PDX

LIS

20h 10m1 stop

7:05 am - 3:55 pm

LIS

PDX

16h 50m1 stop

$485British Airways

lun., feb. 9 - lun., feb. 16

7:05 pm - 9:20 am

PDX

LIS

30h 15m2 stops

11:20 am - 7:14 pm

LIS

PDX

38h 54m2 stops

$486Air Canada

lun., mar. 2 - jue., mar. 12

7:00 am - 8:55 am

PDX

LIS

17h 55m1 stop

5:00 am - 12:25 pm

LIS

PDX

14h 25m1 stop

$487Delta

dom., mar. 1 - vie., mar. 13

7:05 pm - 9:20 am

PDX

LIS

30h 15m2 stops

11:20 am - 7:14 pm

LIS

PDX

38h 54m2 stops

$489Air Canada

lun., mar. 2 - lun., mar. 9

7:00 am - 8:55 am

PDX

LIS

17h 55m2 stops

11:20 am - 10:32 pm

LIS

PDX

43h 12m2 stops

$490United Airlines

sáb., ene. 24 - sáb., ene. 31

7:15 am - 5:30 pm

PDX

LIS

26h 15m2 stops

5:00 am - 12:25 pm

LIS

PDX

14h 25m1 stop

$491Delta

dom., mar. 1 - vie., mar. 13

3:15 pm - 9:20 am

PDX

LIS

34h 05m2 stops

11:20 am - 11:04 pm

LIS

PDX

42h 44m2 stops

$492Air Canada

jue., mar. 5 - mié., mar. 11

2:25 pm - 2:35 pm

PDX

LIS

17h 10m1 stop

11:25 am - 12:25 pm

LIS

PDX

32h 00m1 stop

$493Delta

lun., mar. 9 - jue., mar. 19

British Airways flights from Portland to Lisbon

Our best British Airways deals on Portland to Lisbon flight tickets

British Airways

Feb 8

PDX5:45 pmPortland

16h 00m

1 stop

LIS5:45 pmLisbon Humberto Delgado

Feb 15

LIS6:40 pmLisbon Humberto Delgado

29h 15m

1 stop

PDX3:55 pmPortland

$484

Find similar

British Airways

Feb 18

PDX5:45 pmPortland

20h 05m

1 stop

LIS9:50 pmLisbon Humberto Delgado

Feb 25

LIS7:05 amLisbon Humberto Delgado

16h 50m

1 stop

PDX3:55 pmPortland

$485

Find similar

British Airways

Mar 6

PDX5:45 pmPortland

32h 10m

1 stop

LIS9:55 amLisbon Humberto Delgado

Mar 12

LIS12:55 pmLisbon Humberto Delgado

35h 00m

1 stop

PDX4:55 pmPortland

$510

Find similar

Air Canada flights from Portland to Lisbon

Our best Air Canada deals on Portland to Lisbon flight tickets

Air Canada

Mar 2

PDX7:05 pmPortland

30h 15m

2 stops

LIS9:20 amLisbon Humberto Delgado

Mar 12

LIS11:20 amLisbon Humberto Delgado

38h 54m

2 stops

PDX7:14 pmPortland

$486

Find similar

Air Canada

Mar 2

PDX3:15 pmPortland

34h 05m

2 stops

LIS9:20 amLisbon Humberto Delgado

Mar 11

LIS11:20 amLisbon Humberto Delgado

44h 15m

2 stops

PDX12:35 amPortland

$489

Find similar

Air Canada

Mar 5

PDX3:15 pmPortland

34h 05m

2 stops

LIS9:20 amLisbon Humberto Delgado

Mar 11

LIS11:20 amLisbon Humberto Delgado

42h 44m

2 stops

PDX11:04 pmPortland

$492

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortlandLisbon

PDX - LIS

PDXLIS

Portland

mié. 2/4

9:50 am-7:55 am

2 stops38h 05m

Lisbon Humberto Delgado

mié. 2/25

5:00 am-6:49 pm

2 stops21h 49m

$478

PortlandLisbon

PDX - LIS

PDXLIS

Portland

dom. 2/8

5:45 pm-5:45 pm

1 stop16h 00m

Lisbon Humberto Delgado

dom. 2/15

6:40 pm-3:55 pm

1 stop29h 15m

$484

PortlandLisbon

PDX - LIS

PDXLIS

Portland

lun. 2/9

5:45 pm-9:55 pm

1 stop20h 10m

Lisbon Humberto Delgado

lun. 2/16

7:05 am-3:55 pm

1 stop16h 50m

$485

PortlandLisbon

PDX - LIS

PDXLIS

Portland

lun. 3/2

7:05 pm-9:20 am

2 stops30h 15m

Lisbon Humberto Delgado

jue. 3/12

11:20 am-7:14 pm

2 stops38h 54m

$486

PortlandLisbon

PDX - LIS

PDXLIS

Portland

dom. 3/1

7:00 am-8:55 am

1 stop17h 55m

Lisbon Humberto Delgado

vie. 3/13

5:00 am-12:25 pm

1 stop14h 25m

$487

PortlandLisbon

PDX - LIS

PDXLIS

Portland

lun. 3/2

7:05 pm-9:20 am

2 stops30h 15m

Lisbon Humberto Delgado

lun. 3/9

11:20 am-7:14 pm

2 stops38h 54m

$489

PortlandLisbon

PDX - LIS

PDXLIS

Portland

sáb. 1/24

7:00 am-8:55 am

2 stops17h 55m

Lisbon Humberto Delgado

sáb. 1/31

11:20 am-10:32 pm

2 stops43h 12m

$490

PortlandLisbon

PDX - LIS

PDXLIS

Portland

dom. 3/1

7:15 am-5:30 pm

2 stops26h 15m

Lisbon Humberto Delgado

vie. 3/13

5:00 am-12:25 pm

1 stop14h 25m

$491

PortlandLisbon

PDX - LIS

PDXLIS

Portland

jue. 3/5

3:15 pm-9:20 am

2 stops34h 05m

Lisbon Humberto Delgado

mié. 3/11

11:20 am-11:04 pm

2 stops42h 44m

$492

PortlandLisbon

PDX - LIS

PDXLIS

Portland

lun. 3/9

2:25 pm-2:35 pm

1 stop17h 10m

Lisbon Humberto Delgado

jue. 3/19

11:25 am-12:25 pm

1 stop32h 00m

$493

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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

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 October is also very affordable. Most momondo users find prices during this month for around $740.

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 $906 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 $785 on momondo.

Can stopping save me money on Portland to Lisbon flights?

You could potentially save up to 26% 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 December 2025, prices for Portland to Lisbon flights are approximately 14% 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 25m
Direct flights	None

The fastest flight from Portland to Lisbon takes 14h 25m

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 14h 25m, 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 9 as of December 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 37% of all bookings. The subsequent popular airlines are Delta at 19%, United Airlines at 15%, 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 $360	Free Cancellation	Rating 7.0 592 reviews	Search Icelandair flights
KLM	PriceFrom $557	Free Cancellation	Rating 7.7 1,435 reviews	Search KLM flights
Delta	PriceFrom $562	Free Cancellation	Rating 7.9 8,022 reviews	Search Delta flights
American Airlines	PriceFrom $564	Free Cancellation	Rating 7.2 11,073 reviews	Search American Airlines flights
United Airlines	PriceFrom $586	Free Cancellation	Rating 7.4 9,117 reviews	Search United Airlines flights
British Airways	PriceFrom $604	Free Cancellation	Rating 6.7 7,617 reviews	Search British Airways flights
Air Canada	PriceFrom $634	Free Cancellation	Rating 7.1 10,562 reviews	Search Air Canada flights
Lufthansa	PriceFrom $692	Free Cancellation	Rating 6.8 7,657 reviews	Search Lufthansa flights

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Ericeira

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Nazaré

Setúbal

Peniche

Estoril

Leiria

Oeiras

Sesimbra

Tomar

Evora

Figueira da Foz

Zambujeira do Mar

Batalha

Comporta

Torres Vedras

Óbidos

Sines

Almada

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.

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Cheap flights from Portland to Lisbon from $438

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 3/26. 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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British Airways flights from Portland to Lisbon

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See travel insights to Lisbon from

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?

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 26% 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 December 2025, prices for Portland to Lisbon flights are approximately 14% more expensive when compared to flights at the same time last year.

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

Lufthansa is the most popular carrier 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: 65% 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 $459.

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: 13h 40m.

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

Amsterdam (AMS) has the shortest average layover time for this route: 1h 25m.

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

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