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

Flights via Reykjavik (KEF) offer the lowest average round-trip price of $382.

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 22m.

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

London (LHR) has the shortest average layover time for this route: 2h 03m.

What airlines fly to Lisbon?

British Airways, KLM and Delta 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 55% of people opting to fly with this airline when traveling to Lisbon. Keep in mind that there are 7 different airlines that fly to Lisbon on a routine basis, so you have a few additional options to choose from.

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

London (LHR) was the most common stop: 57% 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?

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

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 7 as of May 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.

$294 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 $1,469 to $1,201. The lowest price recently found on this route was $793.

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Find the cheapest flights from Portland to Lisbon

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:05 pm - 9:05 am

PDX

LIS

30h 00m

3 stops

6:15 am - 1:50 pm

LIS

PDX

39h 35m

3 stops

$793Multiple Airlines

Sun, Aug 16 - Mon, Aug 31

7:05 pm - 9:05 am

PDX

LIS

30h 00m

3 stops

10:30 pm - 9:31 am

LIS

PDX

43h 01m

3 stops

$828Multiple Airlines

Sun, Aug 16 - Mon, Aug 24

7:05 pm - 9:05 am

PDX

LIS

30h 00m

3 stops

10:30 pm - 9:31 am

LIS

PDX

43h 01m

3 stops

$829Multiple Airlines

Sun, Aug 16 - Mon, Aug 24

3:30 pm - 6:25 pm

PDX

LIS

18h 55m

2 stops

9:15 pm - 1:35 pm

LIS

PDX

24h 20m

2 stops

$866Multiple Airlines

Mon, Aug 17 - Wed, Aug 26

7:45 pm - 11:05 am

PDX

LIS

55h 20m

2 stops

6:10 am - 1:50 pm

LIS

PDX

39h 40m

3 stops

$892Multiple Airlines

Fri, Jul 17 - Sat, Jul 25

7:45 pm - 9:20 am

PDX

LIS

29h 35m

2 stops

6:15 am - 1:50 pm

LIS

PDX

39h 35m

3 stops

$896Multiple Airlines

Mon, Aug 10 - Tue, Aug 25

7:05 pm - 10:35 am

PDX

LIS

31h 30m

3 stops

9:10 pm - 9:31 am

LIS

PDX

44h 21m

3 stops

$907Multiple Airlines

Wed, Aug 5 - Wed, Aug 12

3:30 pm - 11:30 pm

PDX

LIS

24h 00m

3 stops

6:10 am - 1:50 pm

LIS

PDX

39h 40m

3 stops

$914Multiple Airlines

Sat, Aug 15 - Sun, Aug 23

10:10 am - 11:05 am

PDX

LIS

16h 55m

2 stops

6:15 am - 1:50 pm

LIS

PDX

39h 35m

3 stops

$919Multiple Airlines

Wed, Aug 12 - Tue, Aug 18

3:30 pm - 6:50 am

PDX

LIS

31h 20m

3 stops

9:15 pm - 1:35 pm

LIS

PDX

24h 20m

2 stops

$922Multiple Airlines

Mon, Aug 17 - Wed, Aug 26

Delta flights from Portland to Lisbon

Our best Delta deals on Portland to Lisbon flight tickets

Delta

Aug 16

PDX10:35 pmPortland

25h 25m

1 stop

LIS8:00 amLisbon Humberto Delgado

Aug 27

LIS5:00 amLisbon Humberto Delgado

14h 10m

1 stop

PDX11:10 amPortland

$951

Delta

Jul 12

PDX9:17 amPortland

17h 58m

2 stops

LIS11:15 amLisbon Humberto Delgado

Jul 22

LIS11:55 amLisbon Humberto Delgado

31h 15m

1 stop

PDX11:10 amPortland

$961

Delta

Aug 23

PDX12:30 amPortland

23h 30m

2 stops

LIS8:00 amLisbon Humberto Delgado

Aug 26

LIS11:55 amLisbon Humberto Delgado

31h 15m

1 stop

PDX11:10 amPortland

$964

Scandinavian Airlines flights from Portland to Lisbon

Our best Scandinavian Airlines deals on Portland to Lisbon flight tickets

Scandinavian Airlines

Jun 2

PDX6:55 amPortland

24h 40m

3 stops

LIS3:35 pmLisbon Humberto Delgado

Jun 13

LIS10:55 pmLisbon Humberto Delgado

26h 14m

2 stops

PDX5:09 pmPortland

$1,828

Scandinavian Airlines

Jun 2

PDX6:55 amPortland

24h 40m

3 stops

LIS3:35 pmLisbon Humberto Delgado

Jun 13

LIS10:55 pmLisbon Humberto Delgado

26h 14m

2 stops

PDX5:09 pmPortland

$1,928

Scandinavian Airlines

Jun 2

PDX6:55 amPortland

24h 40m

3 stops

LIS3:35 pmLisbon Humberto Delgado

Jun 13

LIS10:55 pmLisbon Humberto Delgado

26h 14m

2 stops

PDX5:09 pmPortland

$2,093

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sun 8/16

7:05 pm-9:05 am

3 stops30h 00m

Lisbon Humberto Delgado

Mon 8/31

6:15 am-1:50 pm

3 stops39h 35m

$793

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sun 8/16

7:05 pm-9:05 am

3 stops30h 00m

Lisbon Humberto Delgado

Mon 8/24

10:30 pm-9:31 am

3 stops43h 01m

$828

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sun 8/16

7:05 pm-9:05 am

3 stops30h 00m

Lisbon Humberto Delgado

Mon 8/24

10:30 pm-9:31 am

3 stops43h 01m

$829

Quickest round-trip

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 8/17

3:30 pm-6:25 pm

2 stops18h 55m

Lisbon Humberto Delgado

Wed 8/26

9:15 pm-1:35 pm

2 stops24h 20m

$866

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Fri 7/17

7:45 pm-11:05 am

2 stops55h 20m

Lisbon Humberto Delgado

Sat 7/25

6:10 am-1:50 pm

3 stops39h 40m

$892

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 8/10

7:45 pm-9:20 am

2 stops29h 35m

Lisbon Humberto Delgado

Tue 8/25

6:15 am-1:50 pm

3 stops39h 35m

$896

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 8/5

7:05 pm-10:35 am

3 stops31h 30m

Lisbon Humberto Delgado

Wed 8/12

9:10 pm-9:31 am

3 stops44h 21m

$907

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sat 8/15

3:30 pm-11:30 pm

3 stops24h 00m

Lisbon Humberto Delgado

Sun 8/23

6:10 am-1:50 pm

3 stops39h 40m

$914

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 8/12

10:10 am-11:05 am

2 stops16h 55m

Lisbon Humberto Delgado

Tue 8/18

6:15 am-1:50 pm

3 stops39h 35m

$919

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 8/17

3:30 pm-6:50 am

3 stops31h 20m

Lisbon Humberto Delgado

Wed 8/26

9:15 pm-1:35 pm

2 stops24h 20m

$922

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, February 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 $603. If you are unable to visit Lisbon during the month of February, then departing from Portland during the month November is also very affordable. Most momondo users find prices during this month for around $625.

How far in advance should I book a flight from Portland 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 $828 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 $704 on momondo.

Can stopping save me money on Portland to Lisbon flights?

You could potentially save up to 9% 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 May 2026, prices for Portland to Lisbon flights are approximately 30% 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

Fastest flight time	13h 47m
Direct flights	None

The fastest flight from Portland to Lisbon takes 13h 47m

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

Search flight deals

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 13h 47m, 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 7 as of May 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 50% of all bookings. The subsequent popular airlines are KLM at 15%, Delta at 15%, and United Airlines at 11%.

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 7.0 661 reviews	Search Icelandair flights
KLM	PriceFrom $492	Free Cancellation	Rating 7.8 1,526 reviews	Search KLM flights
Lufthansa	PriceFrom $501	Free Cancellation	Rating 6.8 8,032 reviews	Search Lufthansa flights
British Airways	PriceFrom $510	Free Cancellation	Rating 6.7 8,008 reviews	Search British Airways flights
Delta	PriceFrom $543	Free Cancellation	Rating 7.9 8,421 reviews	Search Delta flights
United Airlines	PriceFrom $549	Free Cancellation	Rating 7.4 9,762 reviews	Search United Airlines flights
Air Canada	PriceFrom $577	Free Cancellation	Rating 7.1 11,096 reviews	Search Air Canada flights

Sintra

Fátima

Ericeira

Nazaré

Estoril

Peniche

Setúbal

Evora

Oeiras

Sesimbra

Leiria

Figueira da Foz

Zambujeira do Mar

Batalha

Óbidos

Tomar

Comporta

Sines

Torres Vedras

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

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Cheap flights from Portland to Lisbon from $294

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 8/18. 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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Delta flights from Portland to Lisbon

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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 from Portland to Lisbon?

Can stopping save me money on Portland to Lisbon flights?

How have Portland to Lisbon flight prices changed over time?

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

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

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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

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

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