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

Delta, United Airlines, and KLM are the most popular carriers 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 were last updated today.

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 stopovers. 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 required for your trip to Lisbon Humberto Delgado Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Lisbon Humberto Delgado Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

R5 882 Cheap Flights from Portland to Lisbon in 2026/27

Find the cheapest flights from Portland to Lisbon

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One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

14:45 - 12:45PDX Portland-LIS Lisbon Humberto Delgado

14h 00m1 stop Reykjavik Keflavik Intl

14:00 - 17:00LIS Lisbon Humberto Delgado-PDX Portland

35h 00m1 stop Reykjavik Keflavik Intl

R10 235Icelandair

Mon, Nov 30 - Thu, Dec 10

14:45 - 12:45PDX Portland-LIS Lisbon Humberto Delgado

14h 00m1 stop Reykjavik Keflavik Intl

14:00 - 17:00LIS Lisbon Humberto Delgado-PDX Portland

35h 00m1 stop Reykjavik Keflavik Intl

R10 335Icelandair

Mon, Nov 30 - Thu, Dec 10

14:45 - 12:50PDX Portland-LIS Lisbon Humberto Delgado

14h 05m1 stop Reykjavik Keflavik Intl

14:00 - 17:00LIS Lisbon Humberto Delgado-PDX Portland

35h 00m1 stop Reykjavik Keflavik Intl

R11 066Icelandair

Sat, Nov 28 - Thu, Dec 10

14:45 - 12:50PDX Portland-LIS Lisbon Humberto Delgado

14h 05m1 stop Reykjavik Keflavik Intl

13:55 - 17:00LIS Lisbon Humberto Delgado-PDX Portland

35h 05m1 stop Reykjavik Keflavik Intl

R11 166Icelandair

Sat, Nov 28 - Tue, Dec 8

14:45 - 15:55PDX Portland-LIS Lisbon Humberto Delgado

17h 10m1 stop Reykjavik Keflavik Intl

14:10 - 17:00LIS Lisbon Humberto Delgado-PDX Portland

34h 50m1 stop Reykjavik Keflavik Intl

R11 897Icelandair

Sat, Nov 14 - Sun, Nov 22

14:45 - 12:50PDX Portland-LIS Lisbon Humberto Delgado

14h 05m1 stop Reykjavik Keflavik Intl

14:00 - 17:00LIS Lisbon Humberto Delgado-PDX Portland

35h 00m1 stop Reykjavik Keflavik Intl

R11 997Icelandair

Sat, Nov 28 - Sun, Dec 6

7:10 - 8:00PDX Portland-LIS Lisbon Humberto Delgado

16h 50m1 stop New York John F Kennedy Intl

5:00 - 17:19LIS Lisbon Humberto Delgado-PDX Portland

20h 19m2 stops Amsterdam Schiphol Seattle/Tacoma Intl

R12 362KLM

Tue, Dec 1 - Tue, Dec 8

11:32 - 14:40PDX Portland-LIS Lisbon Humberto Delgado

19h 08m2 stops Seattle/Tacoma Intl Amsterdam Schiphol

5:00 - 18:58LIS Lisbon Humberto Delgado-PDX Portland

21h 58m2 stops Amsterdam Schiphol Seattle/Tacoma Intl

R12 495KLM

Tue, Dec 1 - Tue, Dec 8

7:00 - 8:00PDX Portland-LIS Lisbon Humberto Delgado

17h 00m1 stop New York John F Kennedy Intl

11:30 - 11:20LIS Lisbon Humberto Delgado-PDX Portland

31h 50m1 stop Amsterdam Schiphol

R12 628Delta

Tue, Feb 2 - Thu, Feb 18

7:00 - 8:00PDX Portland-LIS Lisbon Humberto Delgado

17h 00m1 stop New York John F Kennedy Intl

5:00 - 11:20LIS Lisbon Humberto Delgado-PDX Portland

14h 20m1 stop Amsterdam Schiphol

R12 645KLM

Wed, Feb 10 - Wed, Feb 24

Cheap last-minute flights

Enter your travel dates to find the best prices.

8:30 - 10:20PDX Portland-LIS Lisbon Humberto Delgado

17h 50m1 stop Washington, D.C. Dulles Intl

5:00 - 20:46LIS Lisbon Humberto Delgado-PDX Portland

23h 46m2 stops Frankfurt am Main Vancouver Intl

R13 891Multiple Airlines

Mon, Nov 9 - Thu, Nov 19

7:10 - 8:00PDX Portland-LIS Lisbon Humberto Delgado

16h 50m1 stop New York John F Kennedy Intl

5:00 - 11:40LIS Lisbon Humberto Delgado-PDX Portland

14h 40m1 stop Amsterdam Schiphol

R13 924Delta

Tue, Nov 10 - Wed, Nov 18

7:00 - 10:20PDX Portland-LIS Lisbon Humberto Delgado

19h 20m2 stops Chicago O'Hare Intl Washington, D.C. Reagan-National

5:00 - 20:46LIS Lisbon Humberto Delgado-PDX Portland

23h 46m2 stops Frankfurt am Main Vancouver Intl

R13 974Multiple Airlines

Mon, Nov 9 - Thu, Nov 19

11:43 - 17:30PDX Portland-LIS Lisbon Humberto Delgado

21h 47m2 stops Detroit Metropolitan Wayne County Paris Charles de Gaulle

5:00 - 11:40LIS Lisbon Humberto Delgado-PDX Portland

14h 40m1 stop Amsterdam Schiphol

R13 991Delta

Sun, Nov 8 - Wed, Nov 18

8:30 - 10:20PDX Portland-LIS Lisbon Humberto Delgado

17h 50m1 stop Washington, D.C. Dulles Intl

11:20 - 15:23LIS Lisbon Humberto Delgado-PDX Portland

36h 03m2 stops Toronto Pearson Intl Chicago O'Hare Intl

R14 024United Airlines

Tue, Nov 10 - Tue, Nov 17

23:30 - 10:20PDX Portland-LIS Lisbon Humberto Delgado

26h 50m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl

11:20 - 11:47LIS Lisbon Humberto Delgado-PDX Portland

32h 27m2 stops Toronto Pearson Intl Chicago O'Hare Intl

R14 090United Airlines

Sun, Nov 8 - Wed, Nov 18

23:30 - 10:20PDX Portland-LIS Lisbon Humberto Delgado

26h 50m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl

11:20 - 15:23LIS Lisbon Humberto Delgado-PDX Portland

36h 03m2 stops Toronto Pearson Intl Chicago O'Hare Intl

R14 107United Airlines

Sun, Nov 8 - Wed, Nov 18

17:45 - 21:55PDX Portland-LIS Lisbon Humberto Delgado

20h 10m1 stop London Heathrow

11:05 - 21:59LIS Lisbon Humberto Delgado-PDX Portland

18h 54m1 stop Philadelphia

R14 157British Airways

Mon, Nov 9 - Tue, Nov 17

7:00 - 8:00PDX Portland-LIS Lisbon Humberto Delgado

17h 00m1 stop New York John F Kennedy Intl

5:00 - 11:20LIS Lisbon Humberto Delgado-PDX Portland

14h 20m1 stop Amsterdam Schiphol

R14 755Delta

Sun, Nov 8 - Mon, Nov 16

7:00 - 15:10PDX Portland-LIS Lisbon Humberto Delgado

24h 10m2 stops New York John F Kennedy Intl Paris Charles de Gaulle

5:00 - 11:20LIS Lisbon Humberto Delgado-PDX Portland

14h 20m1 stop Amsterdam Schiphol

R14 821Delta

Sun, Nov 8 - Mon, Nov 16

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Icelandair flights from Portland to Lisbon

Our best Icelandair deals on Portland to Lisbon flight tickets

Icelandair

Nov 30

PDX14:45Portland

14h 00m

1 stop

LIS12:45Lisbon Humberto Delgado

Dec 10

LIS14:00Lisbon Humberto Delgado

35h 00m

1 stop

PDX17:00Portland

R10 235

Icelandair

Nov 30

PDX14:45Portland

14h 00m

1 stop

LIS12:45Lisbon Humberto Delgado

Dec 10

LIS14:00Lisbon Humberto Delgado

35h 00m

1 stop

PDX17:00Portland

R10 335

Icelandair

Nov 28

PDX14:45Portland

14h 05m

1 stop

LIS12:50Lisbon Humberto Delgado

Dec 10

LIS14:00Lisbon Humberto Delgado

35h 00m

1 stop

PDX17:00Portland

R11 066

KLM flights from Portland to Lisbon

Our best KLM deals on Portland to Lisbon flight tickets

KLM

Dec 1

PDX7:10Portland

16h 50m

1 stop

LIS8:00Lisbon Humberto Delgado

Dec 8

LIS5:00Lisbon Humberto Delgado

20h 19m

2 stops

PDX17:19Portland

R12 362

KLM

Dec 1

PDX11:32Portland

19h 08m

2 stops

LIS14:40Lisbon Humberto Delgado

Dec 8

LIS5:00Lisbon Humberto Delgado

21h 58m

2 stops

PDX18:58Portland

R12 495

KLM

Feb 10

PDX7:00Portland

17h 00m

1 stop

LIS8:00Lisbon Humberto Delgado

Feb 24

LIS5:00Lisbon Humberto Delgado

14h 20m

1 stop

PDX11:20Portland

R12 645

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Mon 30/11

14:45-12:45

1 stop14h 00m

Lisbon Humberto Delgado

Thu 10/12

14:00-17:00

1 stop35h 00m

R10 235

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Mon 30/11

14:45-12:45

1 stop14h 00m

Lisbon Humberto Delgado

Thu 10/12

14:00-17:00

1 stop35h 00m

R10 335

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Sat 28/11

14:45-12:50

1 stop14h 05m

Lisbon Humberto Delgado

Thu 10/12

14:00-17:00

1 stop35h 00m

R11 066

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Sat 28/11

14:45-12:50

1 stop14h 05m

Lisbon Humberto Delgado

Tue 8/12

13:55-17:00

1 stop35h 05m

R11 166

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Sat 14/11

14:45-15:55

1 stop17h 10m

Lisbon Humberto Delgado

Sun 22/11

14:10-17:00

1 stop34h 50m

R11 897

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Sat 28/11

14:45-12:50

1 stop14h 05m

Lisbon Humberto Delgado

Sun 6/12

14:00-17:00

1 stop35h 00m

R11 997

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Tue 1/12

7:10-8:00

1 stop16h 50m

Lisbon Humberto Delgado

Tue 8/12

5:00-17:19

2 stops20h 19m

R12 362

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Tue 1/12

11:32-14:40

2 stops19h 08m

Lisbon Humberto Delgado

Tue 8/12

5:00-18:58

2 stops21h 58m

R12 495

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Tue 2/2

7:00-8:00

1 stop17h 00m

Lisbon Humberto Delgado

Thu 18/2

11:30-11:20

1 stop31h 50m

R12 628

Fastest return journey

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Wed 10/2

7:00-8:00

1 stop17h 00m

Lisbon Humberto Delgado

Wed 24/2

5:00-11:20

1 stop14h 20m

R12 645

Flights are sorted by cheapest return 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

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 R9 272 to R14 057.
The lowest price recently found on this route was R10 235.

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 R9 953. If you’re not able to fly to Lisbon in February, then April is your next best option. Flight prices from Portland to Lisbon during April average around R10 867.

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 R14 985 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Lisbon from Portland for as low as R13 010 on momondo.

How have Portland to Lisbon flight prices changed over time?

As of November 2026, prices for Portland to Lisbon flights are approximately 20% 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 return 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	R5 882
Direct flights	None

The best one-way flight to Lisbon from Portland in the past 72 hours is R5 882. The best return flight deal from Portland to Lisbon found on momondo in the last 72 hours is R10 235.

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 straight-line distance from Portland to Lisbon Humberto Delgado is 8536,3 km.
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 were last updated today.
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 stopovers. 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 required for your trip to Lisbon Humberto Delgado Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Lisbon Humberto Delgado Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Fátima

Estoril

Nazaré

Almada

Leiria

Sintra

Peniche

Setúbal

Why use momondo?

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

It is quick and easy to find Portland to Lisbon flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Lisbon that suits you.

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

momondo does allow users to show only those flights to Lisbon from Portland which offer a flexible booking policy as well as other useful filters and features.

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

Once all potential Portland to Lisbon flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are simply researching potential flights to Lisbon, momondo offers a useful price alert feature which will track prices for flights to Lisbon from Portland and alert you when they change.

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Cheap flights from Portland to Lisbon from R5 882

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 16/2. 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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Icelandair flights from Portland to Lisbon

Our best Icelandair 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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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?

How have Portland to Lisbon flight prices changed over time?

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

When to book flights from Portland to Lisbon

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

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Direct flights

Frequently asked questions about flying from Portland to Lisbon

Travelling to a place near Lisbon?

Why use momondo?

An easier way to manage your Lisbon trip

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