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

United Airlines, American Airlines, and British Airways are the most popular carriers operating from Portland to Lisbon Humberto Delgado

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

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.

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.

$306 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

11:35 am - 5:00 pmLIS Lisbon Humberto Delgado-PDX Portland

13h 25m1 stop Reykjavik Keflavik Intl

$681Icelandair

Wed, Jan 13 - Tue, Jan 26

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

14h 05m1 stop Reykjavik Keflavik Intl

11:35 am - 5:00 pmLIS Lisbon Humberto Delgado-PDX Portland

13h 25m1 stop Reykjavik Keflavik Intl

$714Icelandair

Wed, Feb 17 - Tue, Mar 2

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

15h 20m2 stops Vancouver Intl Toronto Pearson Intl

5:00 am - 8:46 pmLIS Lisbon Humberto Delgado-PDX Portland

23h 46m2 stops Frankfurt am Main Vancouver Intl

$719Multiple Airlines

Tue, Dec 1 - Wed, Dec 9

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

$725Multiple Airlines

Tue, Apr 13 - Fri, Apr 23

7:00 am - 3:10 pmPDX Portland-LIS Lisbon Humberto Delgado

24h 10m2 stops Seattle/Tacoma Intl Paris Charles de Gaulle

5:00 am - 11:40 amLIS Lisbon Humberto Delgado-PDX Portland

14h 40m1 stop Amsterdam Schiphol

$728Delta

Tue, Dec 1 - Wed, Dec 9

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

16h 50m1 stop New York John F Kennedy Intl

5:30 am - 6:16 pmLIS Lisbon Humberto Delgado-PDX Portland

20h 46m2 stops Paris Charles de Gaulle Salt Lake City

$741Delta

Wed, Dec 9 - Tue, Dec 22

7:10 pm - 6:55 amPDX Portland-LIS Lisbon Humberto Delgado

27h 45m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

5:00 am - 2:40 pmLIS Lisbon Humberto Delgado-PDX Portland

17h 40m2 stops Frankfurt am Main Vancouver Intl

$748Air Canada

Sat, Feb 20 - Thu, Mar 4

10:00 am - 10:40 amPDX Portland-LIS Lisbon Humberto Delgado

16h 40m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

5:00 am - 9:26 amLIS Lisbon Humberto Delgado-PDX Portland

36h 26m2 stops Frankfurt am Main Vancouver Intl

$748Air Canada

Mon, Feb 15 - Thu, Feb 18

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

15h 20m2 stops Vancouver Intl Toronto Pearson Intl

5:00 am - 6:26 pmLIS Lisbon Humberto Delgado-PDX Portland

21h 26m2 stops Frankfurt am Main San Francisco

$750Lufthansa

Sun, Feb 14 - Fri, Feb 19

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

15h 20m2 stops Vancouver Intl Toronto Pearson Intl

2:20 pm - 12:54 amLIS Lisbon Humberto Delgado-PDX Portland

41h 34m2 stops Munich Franz Josef Strauss San Francisco

$762Lufthansa

Wed, Mar 10 - Mon, Mar 22

Cheap last minute flights

Enter your travel dates to find the best prices.

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

17h 00m1 stop New York John F Kennedy Intl

5:00 am - 9:57 pmLIS Lisbon Humberto Delgado-PDX Portland

24h 57m2 stops Amsterdam Schiphol Seattle/Tacoma Intl

$838Delta

Tue, Oct 20 - Tue, Nov 10

12:29 pm - 5:50 pmPDX Portland-LIS Lisbon Humberto Delgado

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

5:00 am - 9:57 pmLIS Lisbon Humberto Delgado-PDX Portland

24h 57m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

$842Delta

Tue, Oct 20 - Tue, Nov 10

7:30 pm - 11:00 pmPDX Portland-LIS Lisbon Humberto Delgado

19h 30m1 stop London Heathrow

11:05 am - 9:59 pmLIS Lisbon Humberto Delgado-PDX Portland

18h 54m1 stop Philadelphia

$842American Airlines

Tue, Oct 20 - Tue, Nov 10

11:25 am - 2:55 pmPDX Portland-LIS Lisbon Humberto Delgado

19h 30m2 stops Seattle/Tacoma Intl Paris Charles de Gaulle

5:00 am - 10:10 pmLIS Lisbon Humberto Delgado-PDX Portland

25h 10m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County

$842Delta

Tue, Oct 20 - Tue, Nov 10

8:25 am - 10:30 amPDX Portland-LIS Lisbon Humberto Delgado

18h 05m1 stop Washington, D.C. Dulles Intl

10:15 am - 9:58 pmLIS Lisbon Humberto Delgado-PDX Portland

18h 43m1 stop Newark

$1,006United Airlines

Mon, Oct 19 - Thu, Oct 29

10:58 am - 8:20 amPDX Portland-LIS Lisbon Humberto Delgado

13h 22m1 stop Newark

12:20 pm - 11:52 amLIS Lisbon Humberto Delgado-PDX Portland

30h 32m2 stops Washington, D.C. Dulles Intl Chicago O'Hare Intl

$1,006United Airlines

Mon, Oct 19 - Fri, Oct 30

11:25 am - 11:15 amPDX Portland-LIS Lisbon Humberto Delgado

15h 50m2 stops Seattle/Tacoma Intl Paris Charles de Gaulle

5:30 am - 8:02 pmLIS Lisbon Humberto Delgado-PDX Portland

21h 32m2 stops Paris Charles de Gaulle Minneapolis St Paul

$1,008Air France

Thu, Oct 15 - Fri, Oct 30

1:05 pm - 2:35 pmPDX Portland-LIS Lisbon Humberto Delgado

17h 30m1 stop Amsterdam Schiphol

5:00 am - 12:20 pmLIS Lisbon Humberto Delgado-PDX Portland

14h 20m1 stop Amsterdam Schiphol

$1,113KLM

Thu, Oct 15 - Fri, Oct 30

1:05 pm - 2:35 pmPDX Portland-LIS Lisbon Humberto Delgado

17h 30m1 stop Amsterdam Schiphol

5:00 am - 12:20 pmLIS Lisbon Humberto Delgado-PDX Portland

14h 20m1 stop Amsterdam Schiphol

$1,191KLM

Thu, Oct 15 - Fri, Oct 30

7:45 pm - 9:20 amPDX Portland-LIS Lisbon Humberto Delgado

29h 35m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

8:15 am - 9:26 amLIS Lisbon Humberto Delgado-PDX Portland

32h 11m3 stops Frankfurt am Main Calgary Vancouver Intl

$1,920Air Canada

Sat, Oct 17 - Wed, Oct 28

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American Airlines flights from Portland to Lisbon

Our best American Airlines deals on Portland to Lisbon flight tickets

American Airlines

Dec 1

PDX8:00 amPortland

17h 05m

1 stop

LIS9:05 amLisbon Humberto Delgado

Dec 19

LIS10:40 amLisbon Humberto Delgado

19h 33m

1 stop

PDX10:13 pmPortland

$770

American Airlines

Dec 1

PDX7:00 amPortland

18h 05m

2 stops

LIS9:05 amLisbon Humberto Delgado

Dec 19

LIS10:40 amLisbon Humberto Delgado

19h 42m

2 stops

PDX10:22 pmPortland

$775

American Airlines

Nov 10

PDX8:00 amPortland

17h 05m

1 stop

LIS9:05 amLisbon Humberto Delgado

Nov 17

LIS6:30 amLisbon Humberto Delgado

21h 17m

2 stops

PDX7:47 pmPortland

$793

British Airways flights from Portland to Lisbon

Our best British Airways deals on Portland to Lisbon flight tickets

British Airways

Nov 10

PDX8:00 amPortland

17h 05m

1 stop

LIS9:05 amLisbon Humberto Delgado

Nov 17

LIS11:05 amLisbon Humberto Delgado

18h 54m

1 stop

PDX9:59 pmPortland

$773

British Airways

Oct 25

PDX6:45 pmPortland

34h 20m

1 stop

LIS12:05 pmLisbon Humberto Delgado

Nov 3

LIS10:40 amLisbon Humberto Delgado

37h 10m

1 stop

PDX3:50 pmPortland

$851

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Wed 1/13

2:45 pm-12:50 pm

1 stop14h 05m

Lisbon Humberto Delgado

Tue 1/26

11:35 am-5:00 pm

1 stop13h 25m

$681

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Wed 2/17

2:45 pm-12:50 pm

1 stop14h 05m

Lisbon Humberto Delgado

Tue 3/2

11:35 am-5:00 pm

1 stop13h 25m

$714

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Tue 12/1

10:00 am-9:20 am

2 stops15h 20m

Lisbon Humberto Delgado

Wed 12/9

5:00 am-8:46 pm

2 stops23h 46m

$719

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Tue 4/13

6:55 am-9:20 am

2 stops18h 25m

Lisbon Humberto Delgado

Fri 4/23

7:25 am-6:30 pm

2 stops19h 05m

$725

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Tue 12/1

7:00 am-3:10 pm

2 stops24h 10m

Lisbon Humberto Delgado

Wed 12/9

5:00 am-11:40 am

1 stop14h 40m

$728

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-6:16 pm

2 stops20h 46m

$741

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Sat 2/20

7:10 pm-6:55 am

2 stops27h 45m

Lisbon Humberto Delgado

Thu 3/4

5:00 am-2:40 pm

2 stops17h 40m

$748

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Mon 2/15

10:00 am-10:40 am

2 stops16h 40m

Lisbon Humberto Delgado

Thu 2/18

5:00 am-9:26 am

2 stops36h 26m

$748

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Sun 2/14

10:00 am-9:20 am

2 stops15h 20m

Lisbon Humberto Delgado

Fri 2/19

5:00 am-6:26 pm

2 stops21h 26m

$750

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Wed 3/10

10:00 am-9:20 am

2 stops15h 20m

Lisbon Humberto Delgado

Mon 3/22

2:20 pm-12:54 am

2 stops41h 34m

$762

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 low for flights on this route.

Typical prices usually range from $793 to $1,012.
The lowest price recently found on this route was $681.

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 $651.

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 $885 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 $745 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	$306
Fastest flight time	15h 20m
Direct flights	None

The best one-way flight to Lisbon from Portland in the past 72 hours is $306. The best round-trip flight deal from Portland to Lisbon found on momondo in the last 72 hours is $681.

The fastest flight from Portland to Lisbon takes 15h 20m

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 15h 20m, 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 7.5 695 reviews	Search Virgin Atlantic flights
Icelandair	PriceFrom $360	Free Cancellation	Rating 6.9 758 reviews	Search Icelandair flights
KLM	PriceFrom $492	Free Cancellation	Rating 7.8 1,588 reviews	Search KLM flights
Delta	PriceFrom $492	Free Cancellation	Rating 7.8 8,652 reviews	Search Delta flights
Lufthansa	PriceFrom $501	Free Cancellation	Rating 6.8 8,277 reviews	Search Lufthansa flights
British Airways	PriceFrom $508	Free Cancellation	Rating 6.7 8,261 reviews	Search British Airways flights
United Airlines	PriceFrom $508	Free Cancellation	Rating 7.4 10,364 reviews	Search United Airlines flights
Air Canada	PriceFrom $576	Free Cancellation	Rating 7.1 11,774 reviews	Search Air Canada flights

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Comporta

Ericeira

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Costa da Caparica

Tomar

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Beja

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 $306

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 10/26. 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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American Airlines flights from Portland to Lisbon

Our best American Airlines deals on Portland to Lisbon flight tickets

British Airways flights from Portland to Lisbon

Our best British Airways 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

Airports servicing Portugal

Fly your favorite airline to Lisbon

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

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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