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

Lufthansa and United 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?

Amsterdam (AMS) has the shortest average layover time for this route: 1h 24m.

What airlines fly to Lisbon?

British Airways, Delta and United Airlines 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 48% 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 offers the lowest fares from Portland to Lisbon?

Flights via Reykjavik (KEF) offer the lowest average round-trip price of $420.

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

London (LHR) was the most common stop: 67% 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 Amsterdam (AMS) have the shortest average one-way travel time: 13h 43m.

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 February 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.

$320 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 typical for flights on this route. Typical prices usually range from $507 to $789. The lowest price recently found on this route was $509.

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Find the cheapest flights from Portland to Lisbon

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One-way

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Enter your travel dates to find the best prices.

6:22 am - 11:25 pm

PDX

LIS

33h 03m

2 stops

6:35 am - 10:42 pm

LIS

PDX

24h 07m

2 stops

$509Finnair

Mon, Apr 13 - Mon, Apr 27

7:05 pm - 11:05 am

PDX

LIS

32h 00m

2 stops

1:00 pm - 7:05 pm

LIS

PDX

38h 05m

2 stops

$510Air Canada

Fri, Apr 17 - Sun, May 3

11:10 pm - 8:10 am

PDX

LIS

26h 00m

2 stops

12:20 pm - 9:48 am

LIS

PDX

29h 28m

2 stops

$513United Airlines

Mon, Mar 16 - Wed, Apr 1

11:10 pm - 10:15 am

PDX

LIS

28h 05m

1 stop

12:20 pm - 9:48 am

LIS

PDX

29h 28m

2 stops

$518United Airlines

Mon, Mar 16 - Wed, Apr 1

7:05 pm - 11:05 am

PDX

LIS

32h 00m

2 stops

5:05 am - 10:58 pm

LIS

PDX

25h 53m

2 stops

$525Lufthansa

Mon, Apr 13 - Tue, Apr 28

3:30 pm - 6:45 pm

PDX

LIS

19h 15m

2 stops

5:00 am - 11:10 am

LIS

PDX

14h 10m

1 stop

$526Air Europa

Mon, Apr 13 - Mon, Apr 27

3:15 pm - 9:20 am

PDX

LIS

34h 05m

2 stops

12:20 pm - 8:42 pm

LIS

PDX

16h 22m

1 stop

$532Lufthansa

Wed, Apr 8 - Tue, Apr 21

9:50 am - 11:05 am

PDX

LIS

17h 15m

2 stops

5:05 am - 2:45 pm

LIS

PDX

17h 40m

2 stops

$533Multiple Airlines

Tue, Mar 31 - Tue, May 5

7:45 pm - 11:00 am

PDX

LIS

31h 15m

2 stops

5:05 am - 2:45 pm

LIS

PDX

17h 40m

2 stops

$534Multiple Airlines

Wed, May 6 - Wed, May 13

1:55 pm - 5:50 pm

PDX

LIS

19h 55m

2 stops

5:00 am - 11:10 am

LIS

PDX

14h 10m

1 stop

$535Delta

Tue, Mar 31 - Tue, May 5

Air Canada flights from Portland to Lisbon

Our best Air Canada deals on Portland to Lisbon flight tickets

Air Canada

Apr 17

PDX7:05 pmPortland

32h 00m

2 stops

LIS11:05 amLisbon Humberto Delgado

May 3

LIS1:00 pmLisbon Humberto Delgado

33h 45m

2 stops

PDX2:45 pmPortland

$510

Air Canada

Apr 13

PDX7:05 pmPortland

32h 00m

2 stops

LIS11:05 amLisbon Humberto Delgado

May 13

LIS11:25 amLisbon Humberto Delgado

30h 05m

2 stops

PDX9:30 amPortland

$548

Air Canada

Aug 3

PDX7:45 pmPortland

29h 35m

2 stops

LIS9:20 amLisbon Humberto Delgado

Aug 21

LIS11:25 amLisbon Humberto Delgado

35h 26m

2 stops

PDX2:51 pmPortland

$585

Finnair flights from Portland to Lisbon

Our best Finnair deals on Portland to Lisbon flight tickets

Finnair

Apr 13

PDX6:22 amPortland

33h 03m

2 stops

LIS11:25 pmLisbon Humberto Delgado

Apr 27

LIS6:35 amLisbon Humberto Delgado

24h 07m

2 stops

PDX10:42 pmPortland

$509

Finnair

Mar 31

PDX6:40 amPortland

25h 10m

2 stops

LIS3:50 pmLisbon Humberto Delgado

May 5

LIS6:35 amLisbon Humberto Delgado

24h 07m

2 stops

PDX10:42 pmPortland

$555

Fly from

Fly to

Route

Depart

Return

Price

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 4/13

6:22 am-11:25 pm

2 stops33h 03m

Lisbon Humberto Delgado

Mon 4/27

6:35 am-10:42 pm

2 stops24h 07m

$509

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Fri 4/17

7:05 pm-11:05 am

2 stops32h 00m

Lisbon Humberto Delgado

Sun 5/3

1:00 pm-7:05 pm

2 stops38h 05m

$510

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 3/16

11:10 pm-8:10 am

2 stops26h 00m

Lisbon Humberto Delgado

Wed 4/1

12:20 pm-9:48 am

2 stops29h 28m

$513

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 3/16

11:10 pm-10:15 am

1 stop28h 05m

Lisbon Humberto Delgado

Wed 4/1

12:20 pm-9:48 am

2 stops29h 28m

$518

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 4/13

7:05 pm-11:05 am

2 stops32h 00m

Lisbon Humberto Delgado

Tue 4/28

5:05 am-10:58 pm

2 stops25h 53m

$525

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 4/13

3:30 pm-6:45 pm

2 stops19h 15m

Lisbon Humberto Delgado

Mon 4/27

5:00 am-11:10 am

1 stop14h 10m

$526

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 4/8

3:15 pm-9:20 am

2 stops34h 05m

Lisbon Humberto Delgado

Tue 4/21

12:20 pm-8:42 pm

1 stop16h 22m

$532

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Tue 3/31

9:50 am-11:05 am

2 stops17h 15m

Lisbon Humberto Delgado

Tue 5/5

5:05 am-2:45 pm

2 stops17h 40m

$533

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 5/6

7:45 pm-11:00 am

2 stops31h 15m

Lisbon Humberto Delgado

Wed 5/13

5:05 am-2:45 pm

2 stops17h 40m

$534

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Tue 3/31

1:55 pm-5:50 pm

2 stops19h 55m

Lisbon Humberto Delgado

Tue 5/5

5:00 am-11:10 am

1 stop14h 10m

$535

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 $557. 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 $601.

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 $832 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 $749 on momondo.

How have Portland to Lisbon flight prices changed over time?

As of February 2026, prices for Portland to Lisbon flights are approximately 15% 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

Fastest flight time	18h 00m
Direct flights	None

The fastest flight from Portland to Lisbon takes 18h 00m

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

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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 18h 00m, 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 February 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 41% of all bookings. The subsequent popular airlines are Delta at 17%, United Airlines at 14%, and KLM at 13%.

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 7.1 614 reviews	Search Icelandair flights
KLM	PriceFrom $492	Free Cancellation	Rating 7.7 1,455 reviews	Search KLM flights
Lufthansa	PriceFrom $501	Free Cancellation	Rating 6.8 7,786 reviews	Search Lufthansa flights
British Airways	PriceFrom $515	Free Cancellation	Rating 6.7 7,752 reviews	Search British Airways flights
Delta	PriceFrom $523	Free Cancellation	Rating 7.9 8,206 reviews	Search Delta flights
American Airlines	PriceFrom $524	Free Cancellation	Rating 7.2 11,294 reviews	Search American Airlines flights
United Airlines	PriceFrom $545	Free Cancellation	Rating 7.4 9,308 reviews	Search United Airlines flights
Air Canada	PriceFrom $584	Free Cancellation	Rating 7.1 10,725 reviews	Search Air Canada flights

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Estoril

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Figueira da Foz

Zambujeira do Mar

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Óbidos

Comporta

Torres Vedras

Sines

Almada

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 $320

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 2/25. 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?

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

Find info about flight duration, direct flights, and airports for your flight from Portland to Lisbon

Fastest flight time

Direct flights

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?

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

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

How can momondo help me find flights 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?

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.

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List of cabin classes available on flights landing in Lisbon. Availability may vary depending on flight origin and airline.

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