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

London (LHR) was the most common stop: 62% of momondo users choosing 1-stop flights on this route connected there.

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

London (LHR) has the shortest average layover time for this route: 2h 14m.

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

Flights via Reykjavik (KEF) offer the lowest average round-trip price of $399.

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 25m.

What airlines fly to Lisbon?

British Airways, Delta and KLM 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 52% 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.

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 April 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.

$303 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 $818 to $576. The lowest price recently found on this route was $747.

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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.

3:30 pm - 9:20 am

PDX

LIS

33h 50m

2 stops

5:00 am - 6:30 pm

LIS

PDX

21h 30m

2 stops

$747Air Canada

Mon, Sep 28 - Wed, Nov 18

10:00 am - 8:20 am

PDX

LIS

14h 20m

1 stop

11:20 am - 6:05 pm

LIS

PDX

38h 45m

2 stops

$750United Airlines

Wed, Sep 30 - Tue, Nov 17

3:30 pm - 11:00 am

PDX

LIS

35h 30m

2 stops

5:00 am - 6:30 pm

LIS

PDX

21h 30m

2 stops

$752Air Canada

Sun, Sep 27 - Thu, Nov 19

2:15 pm - 9:20 am

PDX

LIS

35h 05m

2 stops

5:00 am - 6:30 pm

LIS

PDX

21h 30m

2 stops

$753Air Canada

Sat, Sep 19 - Wed, Nov 18

8:00 am - 10:30 am

PDX

LIS

18h 30m

1 stop

1:00 pm - 11:35 am

LIS

PDX

30h 35m

2 stops

$755United Airlines

Tue, Sep 29 - Tue, Nov 17

5:30 am - 11:05 am

PDX

LIS

21h 35m

2 stops

5:00 am - 9:25 am

LIS

PDX

36h 25m

2 stops

$756Air Canada

Tue, Sep 29 - Sat, Nov 14

11:15 pm - 10:30 am

PDX

LIS

27h 15m

2 stops

10:15 am - 12:54 am

LIS

PDX

22h 39m

2 stops

$762United Airlines

Sat, Sep 19 - Fri, Nov 13

7:00 am - 8:40 pm

PDX

LIS

29h 40m

2 stops

4:55 pm - 10:26 pm

LIS

PDX

37h 31m

2 stops

$769Scandinavian Airlines

Wed, Sep 30 - Tue, Nov 17

8:00 am - 10:30 am

PDX

LIS

18h 30m

1 stop

11:55 am - 8:25 pm

LIS

PDX

16h 30m

1 stop

$770United Airlines

Tue, Sep 29 - Fri, Nov 20

8:00 am - 10:30 am

PDX

LIS

18h 30m

1 stop

11:55 am - 12:02 am

LIS

PDX

20h 07m

2 stops

$775United Airlines

Tue, Sep 29 - Mon, Nov 16

Air Canada flights from Portland to Lisbon

Our best Air Canada deals on Portland to Lisbon flight tickets

Air Canada

Sep 28

PDX3:30 pmPortland

33h 50m

2 stops

LIS9:20 amLisbon Humberto Delgado

Nov 18

LIS5:00 amLisbon Humberto Delgado

21h 30m

2 stops

PDX6:30 pmPortland

$747

Air Canada

Sep 27

PDX3:30 pmPortland

35h 30m

2 stops

LIS11:00 amLisbon Humberto Delgado

Nov 19

LIS5:00 amLisbon Humberto Delgado

21h 30m

2 stops

PDX6:30 pmPortland

$752

Air Canada

Sep 19

PDX2:15 pmPortland

35h 05m

2 stops

LIS9:20 amLisbon Humberto Delgado

Nov 18

LIS5:00 amLisbon Humberto Delgado

21h 30m

2 stops

PDX6:30 pmPortland

$753

United Airlines flights from Portland to Lisbon

Our best United Airlines deals on Portland to Lisbon flight tickets

United Airlines

Sep 30

PDX10:00 amPortland

14h 20m

1 stop

LIS8:20 amLisbon Humberto Delgado

Nov 17

LIS11:20 amLisbon Humberto Delgado

38h 45m

2 stops

PDX6:05 pmPortland

$750

United Airlines

Sep 29

PDX8:00 amPortland

18h 30m

1 stop

LIS10:30 amLisbon Humberto Delgado

Nov 17

LIS1:00 pmLisbon Humberto Delgado

30h 35m

2 stops

PDX11:35 amPortland

$755

United Airlines

Sep 19

PDX11:15 pmPortland

27h 15m

2 stops

LIS10:30 amLisbon Humberto Delgado

Nov 13

LIS10:15 amLisbon Humberto Delgado

22h 39m

2 stops

PDX12:54 amPortland

$762

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 9/28

3:30 pm-9:20 am

2 stops33h 50m

Lisbon Humberto Delgado

Wed 11/18

5:00 am-6:30 pm

2 stops21h 30m

$747

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 9/30

10:00 am-8:20 am

1 stop14h 20m

Lisbon Humberto Delgado

Tue 11/17

11:20 am-6:05 pm

2 stops38h 45m

$750

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sun 9/27

3:30 pm-11:00 am

2 stops35h 30m

Lisbon Humberto Delgado

Thu 11/19

5:00 am-6:30 pm

2 stops21h 30m

$752

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sat 9/19

2:15 pm-9:20 am

2 stops35h 05m

Lisbon Humberto Delgado

Wed 11/18

5:00 am-6:30 pm

2 stops21h 30m

$753

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Tue 9/29

8:00 am-10:30 am

1 stop18h 30m

Lisbon Humberto Delgado

Tue 11/17

1:00 pm-11:35 am

2 stops30h 35m

$755

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Tue 9/29

5:30 am-11:05 am

2 stops21h 35m

Lisbon Humberto Delgado

Sat 11/14

5:00 am-9:25 am

2 stops36h 25m

$756

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sat 9/19

11:15 pm-10:30 am

2 stops27h 15m

Lisbon Humberto Delgado

Fri 11/13

10:15 am-12:54 am

2 stops22h 39m

$762

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 9/30

7:00 am-8:40 pm

2 stops29h 40m

Lisbon Humberto Delgado

Tue 11/17

4:55 pm-10:26 pm

2 stops37h 31m

$769

Quickest round-trip

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Tue 9/29

8:00 am-10:30 am

1 stop18h 30m

Lisbon Humberto Delgado

Fri 11/20

11:55 am-8:25 pm

1 stop16h 30m

$770

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Tue 9/29

8:00 am-10:30 am

1 stop18h 30m

Lisbon Humberto Delgado

Mon 11/16

11:55 am-12:02 am

2 stops20h 07m

$775

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, November 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 $558. If you are unable to visit Lisbon during the month of November, then departing from Portland during the month February is also very affordable. Most momondo users find prices during this month for around $599.

How far in advance should I book a flight 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 $815 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 $682 on momondo.

Can stopping save me money on Portland to Lisbon flights?

You could potentially save up to 27% 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 April 2026, prices for Portland to Lisbon flights are approximately 11% more expensive 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	14h 20m
Direct flights	None

The fastest flight from Portland to Lisbon takes 14h 20m

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

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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 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 April 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 Delta at 15%, KLM at 15%, and United Airlines at 12%.

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 7.0 632 reviews	Search Icelandair flights
KLM	PriceFrom $492	Free Cancellation	Rating 7.8 1,496 reviews	Search KLM flights
Lufthansa	PriceFrom $501	Free Cancellation	Rating 6.8 7,919 reviews	Search Lufthansa flights
British Airways	PriceFrom $511	Free Cancellation	Rating 6.7 7,881 reviews	Search British Airways flights
American Airlines	PriceFrom $524	Free Cancellation	Rating 7.1 11,566 reviews	Search American Airlines flights
United Airlines	PriceFrom $543	Free Cancellation	Rating 7.4 9,579 reviews	Search United Airlines flights
Delta	PriceFrom $551	Free Cancellation	Rating 7.9 8,406 reviews	Search Delta flights
Air Canada	PriceFrom $577	Free Cancellation	Rating 7.1 10,916 reviews	Search Air Canada flights

Sintra

Fátima

Ericeira

Nazaré

Setúbal

Peniche

Estoril

Evora

Oeiras

Sesimbra

Leiria

Figueira da Foz

Zambujeira do Mar

Óbidos

Batalha

Tomar

Comporta

Almada

Torres Vedras

Sines

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 $303

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 5/4. 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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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 to Lisbon?

Can stopping save me money on Portland to Lisbon flights?

How have Portland to Lisbon flight prices changed over time?

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

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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