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

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

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

British Airways, Aer Lingus, and Air France are the most popular carriers operating from Portland to Lisbon Humberto Delgado

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 49% 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 has the shortest connection time from Portland to Lisbon?

London (LHR) has the shortest average layover time for this route: 2h 08m.

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

Amsterdam (AMS) was the most common stop: 49% of momondo users choosing 1-stop flights on this route connected there.

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

Flights connecting via Newark (EWR) have the shortest average one-way travel time: 13h 22m.

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 October 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.

$336 Cheap Flights from Portland to Lisbon in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Portland to Lisbon

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One-way

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Cheap round-trip flights

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2:45 pm - 12:50 pmPDX Portland-LIS Lisbon Humberto Delgado

14h 05m1 stop Reykjavik Keflavik Intl

2:00 pm - 5:00 pmLIS Lisbon Humberto Delgado-PDX Portland

35h 00m1 stop Reykjavik Keflavik Intl

$595Icelandair

Mon, Dec 7 - Thu, Dec 17

2:45 pm - 12:50 pmPDX Portland-LIS Lisbon Humberto Delgado

14h 05m1 stop Reykjavik Keflavik Intl

2:00 pm - 5:00 pmLIS Lisbon Humberto Delgado-PDX Portland

35h 00m1 stop Reykjavik Keflavik Intl

$648Icelandair

Mon, Dec 7 - Thu, Dec 17

2:45 pm - 8:15 pmPDX Portland-LIS Lisbon Humberto Delgado

21h 30m2 stops Reykjavik Keflavik Intl Rome Fiumicino

7:00 pm - 5:00 pmLIS Lisbon Humberto Delgado-PDX Portland

30h 00m3 stops Barcelona-El Prat Rome Fiumicino Reykjavik Keflavik Intl

$705Multiple Airlines

Thu, Dec 10 - Thu, Dec 17

10:00 am - 9:20 amPDX Portland-LIS Lisbon Humberto Delgado

15h 20m2 stops Vancouver Intl Toronto Pearson Intl

6:05 am - 12:47 amLIS Lisbon Humberto Delgado-PDX Portland

26h 42m2 stops Munich Franz Josef Strauss San Francisco

$731Lufthansa

Mon, Dec 7 - Thu, Dec 17

6:55 am - 9:20 amPDX Portland-LIS Lisbon Humberto Delgado

18h 25m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

7:25 am - 6:30 pmLIS Lisbon Humberto Delgado-PDX Portland

19h 05m2 stops Frankfurt am Main Vancouver Intl

$731Multiple Airlines

Tue, Apr 13 - Wed, Apr 21

7:10 am - 8:00 amPDX Portland-LIS Lisbon Humberto Delgado

16h 50m1 stop New York John F Kennedy Intl

5:30 am - 10:07 pmLIS Lisbon Humberto Delgado-PDX Portland

24h 37m2 stops Paris Charles de Gaulle Detroit Metropolitan Wayne County

$741Delta

Mon, Dec 7 - Thu, Dec 17

7:10 am - 8:00 amPDX Portland-LIS Lisbon Humberto Delgado

16h 50m1 stop New York John F Kennedy Intl

5:30 am - 7:01 pmLIS Lisbon Humberto Delgado-PDX Portland

21h 31m2 stops Paris Charles de Gaulle Seattle/Tacoma Intl

$742Delta

Wed, Dec 9 - Tue, Dec 22

5:45 pm - 9:45 amPDX Portland-LIS Lisbon Humberto Delgado

32h 00m1 stop London Heathrow

10:25 am - 10:13 pmLIS Lisbon Humberto Delgado-PDX Portland

19h 48m1 stop Philadelphia

$744British Airways

Mon, Dec 7 - Thu, Dec 17

10:00 am - 9:20 amPDX Portland-LIS Lisbon Humberto Delgado

15h 20m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

5:05 am - 6:05 pmLIS Lisbon Humberto Delgado-PDX Portland

21h 00m2 stops Frankfurt am Main Chicago O'Hare Intl

$751Lufthansa

Mon, Apr 12 - Tue, Apr 20

5:45 pm - 9:45 pmPDX Portland-LIS Lisbon Humberto Delgado

20h 00m1 stop London Heathrow

11:05 am - 10:10 pmLIS Lisbon Humberto Delgado-PDX Portland

19h 05m1 stop Philadelphia

$763British Airways

Sun, Dec 6 - Sun, Dec 13

Cheap last minute flights

Enter your travel dates to find the best prices.

3:45 pm - 8:15 pmPDX Portland-LIS Lisbon Humberto Delgado

21h 30m1 stop Reykjavik Keflavik Intl

1:45 pm - 5:00 pmLIS Lisbon Humberto Delgado-PDX Portland

35h 15m1 stop Reykjavik Keflavik Intl

$710Icelandair

Sat, Oct 31 - Thu, Nov 5

6:00 am - 9:00 amPDX Portland-LIS Lisbon Humberto Delgado

19h 00m2 stops Minneapolis St Paul Boston Logan Intl

11:30 am - 11:40 amLIS Lisbon Humberto Delgado-PDX Portland

32h 10m1 stop Amsterdam Schiphol

$825Delta

Mon, Nov 2 - Tue, Nov 17

7:00 am - 8:00 amPDX Portland-LIS Lisbon Humberto Delgado

17h 00m1 stop New York John F Kennedy Intl

11:30 am - 11:40 amLIS Lisbon Humberto Delgado-PDX Portland

32h 10m1 stop Amsterdam Schiphol

$825Delta

Mon, Nov 2 - Tue, Nov 17

7:00 am - 8:00 amPDX Portland-LIS Lisbon Humberto Delgado

18h 00m1 stop New York John F Kennedy Intl

5:00 am - 11:20 amLIS Lisbon Humberto Delgado-PDX Portland

14h 20m1 stop Amsterdam Schiphol

$829KLM

Wed, Oct 28 - Fri, Nov 6

1:10 pm - 3:10 pmPDX Portland-LIS Lisbon Humberto Delgado

19h 00m2 stops Salt Lake City Paris Charles de Gaulle

5:00 am - 11:20 amLIS Lisbon Humberto Delgado-PDX Portland

14h 20m1 stop Amsterdam Schiphol

$832Multiple Airlines

Wed, Oct 28 - Fri, Nov 6

2:34 pm - 11:30 pmPDX Portland-LIS Lisbon Humberto Delgado

24h 56m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

5:00 am - 6:20 pmLIS Lisbon Humberto Delgado-PDX Portland

21h 20m2 stops Frankfurt am Main San Francisco

$835Lufthansa

Mon, Nov 2 - Tue, Nov 17

7:00 am - 8:00 amPDX Portland-LIS Lisbon Humberto Delgado

18h 00m1 stop New York John F Kennedy Intl

5:00 am - 11:20 amLIS Lisbon Humberto Delgado-PDX Portland

14h 20m1 stop Amsterdam Schiphol

$839KLM

Wed, Oct 28 - Fri, Nov 6

1:10 pm - 3:10 pmPDX Portland-LIS Lisbon Humberto Delgado

19h 00m2 stops Salt Lake City Paris Charles de Gaulle

5:00 am - 2:51 pmLIS Lisbon Humberto Delgado-PDX Portland

17h 51m2 stops Amsterdam Schiphol Seattle/Tacoma Intl

$842Multiple Airlines

Wed, Oct 28 - Fri, Nov 6

2:34 pm - 11:30 pmPDX Portland-LIS Lisbon Humberto Delgado

24h 56m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

6:00 am - 12:54 amLIS Lisbon Humberto Delgado-PDX Portland

26h 54m2 stops Munich Franz Josef Strauss San Francisco

$880Lufthansa

Mon, Nov 2 - Mon, Nov 16

3:45 pm - 8:15 pmPDX Portland-LIS Lisbon Humberto Delgado

21h 30m1 stop Reykjavik Keflavik Intl

5:05 pm - 5:00 pmLIS Lisbon Humberto Delgado-PDX Portland

31h 55m1 stop Reykjavik Keflavik Intl

$940Icelandair

Sat, Oct 31 - Sun, Nov 8

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British Airways flights from Portland to Lisbon

Our best British Airways deals on Portland to Lisbon flight tickets

British Airways

Dec 7

PDX5:45 pmPortland

32h 00m

1 stop

LIS9:45 amLisbon Humberto Delgado

Dec 17

LIS10:25 amLisbon Humberto Delgado

19h 48m

1 stop

PDX10:13 pmPortland

$744

British Airways

Dec 10

PDX1:30 pmPortland

20h 35m

2 stops

LIS6:05 pmLisbon Humberto Delgado

Dec 17

LIS10:25 amLisbon Humberto Delgado

19h 48m

1 stop

PDX10:13 pmPortland

$768

British Airways

Feb 1

PDX2:06 pmPortland

20h 44m

2 stops

LIS6:50 pmLisbon Humberto Delgado

Feb 10

LIS7:05 amLisbon Humberto Delgado

16h 45m

1 stop

PDX3:50 pmPortland

$769

Icelandair flights from Portland to Lisbon

Our best Icelandair deals on Portland to Lisbon flight tickets

Icelandair

Dec 7

PDX2:45 pmPortland

14h 05m

1 stop

LIS12:50 pmLisbon Humberto Delgado

Dec 17

LIS2:00 pmLisbon Humberto Delgado

35h 00m

1 stop

PDX5:00 pmPortland

$595

Icelandair

Dec 7

PDX2:45 pmPortland

14h 05m

1 stop

LIS12:50 pmLisbon Humberto Delgado

Dec 17

LIS2:00 pmLisbon Humberto Delgado

35h 00m

1 stop

PDX5:00 pmPortland

$648

Icelandair

Jan 13

PDX2:45 pmPortland

14h 05m

1 stop

LIS12:50 pmLisbon Humberto Delgado

Feb 23

LIS11:35 amLisbon Humberto Delgado

13h 25m

1 stop

PDX5:00 pmPortland

$659

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Mon 12/7

2:45 pm-12:50 pm

1 stop14h 05m

Lisbon Humberto Delgado

Thu 12/17

2:00 pm-5:00 pm

1 stop35h 00m

$595

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Mon 12/7

2:45 pm-12:50 pm

1 stop14h 05m

Lisbon Humberto Delgado

Thu 12/17

2:00 pm-5:00 pm

1 stop35h 00m

$648

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Thu 12/10

2:45 pm-8:15 pm

2 stops21h 30m

Lisbon Humberto Delgado

Thu 12/17

7:00 pm-5:00 pm

3 stops30h 00m

$705

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Mon 12/7

10:00 am-9:20 am

2 stops15h 20m

Lisbon Humberto Delgado

Thu 12/17

6:05 am-12:47 am

2 stops26h 42m

$731

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Tue 4/13

6:55 am-9:20 am

2 stops18h 25m

Lisbon Humberto Delgado

Wed 4/21

7:25 am-6:30 pm

2 stops19h 05m

$731

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Mon 12/7

7:10 am-8:00 am

1 stop16h 50m

Lisbon Humberto Delgado

Thu 12/17

5:30 am-10:07 pm

2 stops24h 37m

$741

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Wed 12/9

7:10 am-8:00 am

1 stop16h 50m

Lisbon Humberto Delgado

Tue 12/22

5:30 am-7:01 pm

2 stops21h 31m

$742

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Mon 12/7

5:45 pm-9:45 am

1 stop32h 00m

Lisbon Humberto Delgado

Thu 12/17

10:25 am-10:13 pm

1 stop19h 48m

$744

Quickest round-trip

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Mon 4/12

10:00 am-9:20 am

2 stops15h 20m

Lisbon Humberto Delgado

Tue 4/20

5:05 am-6:05 pm

2 stops21h 00m

$751

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Sun 12/6

5:45 pm-9:45 pm

1 stop20h 00m

Lisbon Humberto Delgado

Sun 12/13

11:05 am-10:10 pm

1 stop19h 05m

$763

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?

Prices are currently typical for flights on this route.

Typical prices usually range from $558 to $846.
The lowest price recently found on this route was $595.

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 $599. If you are unable to visit Lisbon during the month of February, then departing from Portland during the month April is also very affordable. Most momondo users find prices during this month for around $654.

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 $894 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 $783 on momondo.

Can stopping save me money on Portland to Lisbon flights?

You could potentially save up to 15% 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 October 2026, prices for Portland to Lisbon flights are approximately 5% 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

Best Price Found	$336
Fastest flight time	14h 05m
Direct flights	None

The best one-way flight to Lisbon from Portland in the past 72 hours is $336. The best round-trip flight deal from Portland to Lisbon found on momondo in the last 72 hours is $595.

The fastest flight from Portland to Lisbon takes 14h 05m

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 14h 05m, 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 October 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 45% of all bookings. The subsequent popular airlines are KLM at 19%, Delta at 18%, and United Airlines at 10%.

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
Virgin Atlantic	PriceFrom $318	Free Cancellation	Rating 7.5 697 reviews	Search Virgin Atlantic flights
Icelandair	PriceFrom $360	Free Cancellation	Rating 7.0 766 reviews	Search Icelandair flights
KLM	PriceFrom $492	Free Cancellation	Rating 7.8 1,597 reviews	Search KLM flights
Lufthansa	PriceFrom $501	Free Cancellation	Rating 6.8 8,295 reviews	Search Lufthansa flights
British Airways	PriceFrom $508	Free Cancellation	Rating 6.7 8,274 reviews	Search British Airways flights
United Airlines	PriceFrom $508	Free Cancellation	Rating 7.3 10,443 reviews	Search United Airlines flights
Delta	PriceFrom $543	Free Cancellation	Rating 7.8 8,683 reviews	Search Delta flights
Air Canada	PriceFrom $576	Free Cancellation	Rating 7.1 11,819 reviews	Search Air Canada flights

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Caldas da Rainha

Costa da Caparica

Comporta

Oeiras

Tomar

Torres Vedras

Peniche

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 $336

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 2/28. 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

Our best British Airways deals on Portland to Lisbon flight tickets

Icelandair flights from Portland to Lisbon

Our best Icelandair 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 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

Best Price Found

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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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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