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 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 51% 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 travel time from Portland to Lisbon?

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

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

Amsterdam (AMS) was the most common stop: 45% 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?

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

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

London (LHR) has the shortest average layover time for this route: 1h 53m.

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 September 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.

$278 Cheap Flights from Portland to Lisbon in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Portland to Lisbon

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

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

16h 20m2 stops Vancouver Intl Toronto Pearson Intl

6:05 am - 8:46 pmLIS Lisbon Humberto Delgado-PDX Portland

22h 41m2 stops Munich Franz Josef Strauss Vancouver Intl

$582Multiple Airlines

Tue, Oct 27 - Tue, Nov 10

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

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

6:05 am - 8:46 pmLIS Lisbon Humberto Delgado-PDX Portland

22h 41m2 stops Munich Franz Josef Strauss Vancouver Intl

$582Multiple Airlines

Mon, Jan 18 - Thu, Jan 28

8:30 am - 10:05 amPDX Portland-LIS Lisbon Humberto Delgado

17h 35m1 stop Washington, D.C. Dulles Intl

12:50 pm - 8:15 pmLIS Lisbon Humberto Delgado-PDX Portland

39h 25m2 stops Montreal Pierre Elliott Trudeau Intl Washington, D.C. Dulles Intl

$596United Airlines

Tue, Nov 10 - Tue, Nov 17

8:00 am - 9:05 amPDX Portland-LIS Lisbon Humberto Delgado

17h 05m1 stop Philadelphia

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

18h 54m1 stop Philadelphia

$597British Airways

Wed, Dec 2 - Tue, Dec 8

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

16h 00m1 stop London Heathrow

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

18h 54m1 stop Philadelphia

$597British Airways

Sun, Nov 8 - Wed, Nov 18

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

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

11:20 am - 2:41 pmLIS Lisbon Humberto Delgado-PDX Portland

35h 21m2 stops Toronto Pearson Intl Vancouver Intl

$598Lufthansa

Sun, Nov 8 - Wed, Nov 18

3:30 pm - 9:20 amPDX Portland-LIS Lisbon Humberto Delgado

33h 50m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

11:20 am - 2:41 pmLIS Lisbon Humberto Delgado-PDX Portland

35h 21m2 stops Toronto Pearson Intl Vancouver Intl

$598Lufthansa

Tue, Oct 20 - Tue, Nov 10

8:30 am - 10:05 amPDX Portland-LIS Lisbon Humberto Delgado

17h 35m1 stop Washington, D.C. Dulles Intl

11:20 am - 11:47 amLIS Lisbon Humberto Delgado-PDX Portland

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

$601United Airlines

Sun, Nov 8 - Wed, Nov 18

7:00 am - 8:55 amPDX Portland-LIS Lisbon Humberto Delgado

17h 55m2 stops Vancouver Intl Toronto Pearson Intl

11:20 am - 3:20 pmLIS Lisbon Humberto Delgado-PDX Portland

36h 00m2 stops Toronto Pearson Intl Chicago O'Hare Intl

$604Air Canada

Wed, Nov 18 - Wed, Nov 25

7:00 am - 8:55 amPDX Portland-LIS Lisbon Humberto Delgado

17h 55m2 stops Vancouver Intl Toronto Pearson Intl

11:20 am - 10:27 pmLIS Lisbon Humberto Delgado-PDX Portland

43h 07m2 stops Toronto Pearson Intl Chicago O'Hare Intl

$604Air Canada

Wed, Nov 11 - Tue, Nov 24

Cheap last minute flights

Enter your travel dates to find the best prices.

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

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

1:00 pm - 6:53 pmLIS Lisbon Humberto Delgado-PDX Portland

37h 53m2 stops Toronto Pearson Intl Chicago O'Hare Intl

$773United Airlines

Fri, Sep 18 - Fri, Sep 25

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

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

10:25 am - 9:27 pmLIS Lisbon Humberto Delgado-PDX Portland

19h 02m1 stop Newark

$788United Airlines

Fri, Sep 18 - Fri, Sep 25

11:20 am - 2:55 pmPDX Portland-LIS Lisbon Humberto Delgado

19h 35m2 stops Seattle/Tacoma Intl Paris Charles de Gaulle

12:45 pm - 11:40 pmLIS Lisbon Humberto Delgado-PDX Portland

18h 55m2 stops Boston Logan Intl Salt Lake City

$798Delta

Thu, Sep 17 - Thu, Sep 24

11:20 am - 2:55 pmPDX Portland-LIS Lisbon Humberto Delgado

19h 35m2 stops Seattle/Tacoma Intl Paris Charles de Gaulle

10:00 am - 9:03 pmLIS Lisbon Humberto Delgado-PDX Portland

19h 03m1 stop New York John F Kennedy Intl

$798Delta

Thu, Sep 17 - Thu, Sep 24

1:35 pm - 2:55 pmPDX Portland-LIS Lisbon Humberto Delgado

17h 20m2 stops Minneapolis St Paul Paris Charles de Gaulle

5:00 am - 11:10 amLIS Lisbon Humberto Delgado-PDX Portland

14h 10m1 stop Amsterdam Schiphol

$804Multiple Airlines

Fri, Sep 18 - Fri, Sep 25

1:35 pm - 2:55 pmPDX Portland-LIS Lisbon Humberto Delgado

17h 20m2 stops Minneapolis St Paul Paris Charles de Gaulle

5:00 am - 2:41 pmLIS Lisbon Humberto Delgado-PDX Portland

17h 41m2 stops Amsterdam Schiphol Seattle/Tacoma Intl

$809Multiple Airlines

Fri, Sep 18 - Fri, Sep 25

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

17h 30m1 stop Amsterdam Schiphol

5:00 am - 11:10 amLIS Lisbon Humberto Delgado-PDX Portland

14h 10m1 stop Amsterdam Schiphol

$816KLM

Thu, Sep 17 - Fri, Sep 25

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

17h 30m1 stop Amsterdam Schiphol

7:45 pm - 11:10 amLIS Lisbon Humberto Delgado-PDX Portland

23h 25m1 stop Amsterdam Schiphol

$876KLM

Thu, Sep 17 - Sun, Sep 27

11:48 am - 3:35 pmPDX Portland-LIS Lisbon Humberto Delgado

19h 47m2 stops Chicago O'Hare Intl London Heathrow

4:30 pm - 4:54 pmLIS Lisbon Humberto Delgado-PDX Portland

32h 24m2 stops London Heathrow Dallas/Fort Worth

$1,080British Airways

Tue, Sep 15 - Tue, Sep 22

7:25 am - 9:05 amPDX Portland-LIS Lisbon Humberto Delgado

17h 40m1 stop Philadelphia

4:30 pm - 4:54 pmLIS Lisbon Humberto Delgado-PDX Portland

32h 24m2 stops London Heathrow Dallas/Fort Worth

$1,088British Airways

Tue, Sep 15 - Tue, Sep 22

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United Airlines flights from Portland to Lisbon

Our best United Airlines deals on Portland to Lisbon flight tickets

United Airlines

Nov 10

PDX8:30 amPortland

17h 35m

1 stop

LIS10:05 amLisbon Humberto Delgado

Nov 17

LIS12:50 pmLisbon Humberto Delgado

39h 25m

2 stops

PDX8:15 pmPortland

$596

United Airlines

Nov 8

PDX8:30 amPortland

17h 35m

1 stop

LIS10:05 amLisbon Humberto Delgado

Nov 18

LIS11:20 amLisbon Humberto Delgado

32h 27m

2 stops

PDX11:47 amPortland

$601

United Airlines

Oct 19

PDX10:58 amPortland

13h 22m

1 stop

LIS8:20 amLisbon Humberto Delgado

Nov 4

LIS10:15 amLisbon Humberto Delgado

19h 43m

1 stop

PDX9:58 pmPortland

$607

American Airlines flights from Portland to Lisbon

Our best American Airlines deals on Portland to Lisbon flight tickets

American Airlines

Oct 19

PDX7:30 pmPortland

19h 40m

1 stop

LIS11:10 pmLisbon Humberto Delgado

Nov 4

LIS8:20 amLisbon Humberto Delgado

19h 27m

2 stops

PDX7:47 pmPortland

$599

American Airlines

Oct 19

PDX7:30 pmPortland

14h 25m

1 stop

LIS5:55 pmLisbon Humberto Delgado

Nov 4

LIS11:05 amLisbon Humberto Delgado

18h 54m

1 stop

PDX9:59 pmPortland

$604

American Airlines

Feb 1

PDX1:33 pmPortland

17h 22m

2 stops

LIS2:55 pmLisbon Humberto Delgado

Feb 10

LIS8:20 amLisbon Humberto Delgado

22h 10m

2 stops

PDX10:30 pmPortland

$612

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Tue 10/27

10:00 am-9:20 am

2 stops16h 20m

Lisbon Humberto Delgado

Tue 11/10

6:05 am-8:46 pm

2 stops22h 41m

$582

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Mon 1/18

10:00 am-9:20 am

2 stops15h 20m

Lisbon Humberto Delgado

Thu 1/28

6:05 am-8:46 pm

2 stops22h 41m

$582

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Tue 11/10

8:30 am-10:05 am

1 stop17h 35m

Lisbon Humberto Delgado

Tue 11/17

12:50 pm-8:15 pm

2 stops39h 25m

$596

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Wed 12/2

8:00 am-9:05 am

1 stop17h 05m

Lisbon Humberto Delgado

Tue 12/8

11:05 am-9:59 pm

1 stop18h 54m

$597

Quickest round-trip

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Sun 11/8

5:45 pm-5:45 pm

1 stop16h 00m

Lisbon Humberto Delgado

Wed 11/18

11:05 am-9:59 pm

1 stop18h 54m

$597

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Sun 11/8

10:00 am-10:40 am

2 stops40h 40m

Lisbon Humberto Delgado

Wed 11/18

11:20 am-2:41 pm

2 stops35h 21m

$598

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Tue 10/20

3:30 pm-9:20 am

2 stops33h 50m

Lisbon Humberto Delgado

Tue 11/10

11:20 am-2:41 pm

2 stops35h 21m

$598

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Sun 11/8

8:30 am-10:05 am

1 stop17h 35m

Lisbon Humberto Delgado

Wed 11/18

11:20 am-11:47 am

2 stops32h 27m

$601

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Wed 11/18

7:00 am-8:55 am

2 stops17h 55m

Lisbon Humberto Delgado

Wed 11/25

11:20 am-3:20 pm

2 stops36h 00m

$604

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Wed 11/11

7:00 am-8:55 am

2 stops17h 55m

Lisbon Humberto Delgado

Tue 11/24

11:20 am-10:27 pm

2 stops43h 07m

$604

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 $846 to $1,237.
The lowest price recently found on this route was $582.

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 $598. 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 $874 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 11% 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 September 2026, prices for Portland to Lisbon flights are approximately 24% 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	$278
Fastest flight time	13h 24m
Direct flights	None

The best one-way flight to Lisbon from Portland in the past 72 hours is $278. The best round-trip flight deal from Portland to Lisbon found on momondo in the last 72 hours is $582.

The fastest flight from Portland to Lisbon takes 13h 24m

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 24m, 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 September 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 46% of all bookings. The subsequent popular airlines are KLM at 18%, Delta at 16%, 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
Virgin Atlantic	PriceFrom $318	Free Cancellation	Rating 7.4 694 reviews	Search Virgin Atlantic flights
Icelandair	PriceFrom $360	Free Cancellation	Rating 6.9 741 reviews	Search Icelandair flights
KLM	PriceFrom $492	Free Cancellation	Rating 7.8 1,576 reviews	Search KLM flights
Delta	PriceFrom $492	Free Cancellation	Rating 7.8 8,567 reviews	Search Delta flights
Lufthansa	PriceFrom $501	Free Cancellation	Rating 6.8 8,220 reviews	Search Lufthansa flights
British Airways	PriceFrom $509	Free Cancellation	Rating 6.7 8,212 reviews	Search British Airways flights
United Airlines	PriceFrom $549	Free Cancellation	Rating 7.4 10,205 reviews	Search United Airlines flights
Air Canada	PriceFrom $576	Free Cancellation	Rating 7.1 11,617 reviews	Search Air Canada flights

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Sines

Oeiras

Costa da Caparica

Comporta

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Tomar

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 $278

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 10/27. 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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United Airlines flights from Portland to Lisbon

Our best United Airlines deals on Portland to Lisbon flight tickets

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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?

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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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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