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 40m.

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

Amsterdam (AMS) has the shortest average layover time for this route: 1h 25m.

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 44% of people opting to fly with this airline when traveling to Lisbon. Keep in mind that there are 9 different airlines that fly to Lisbon on a routine basis, so you have a few additional options to choose from.

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

London (LHR) was the most common stop: 65% of momondo users choosing 1-stop flights on this route connected there.

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

Flights via Reykjavik (KEF) offer the lowest average round-trip price of $459.

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

KLM is the most popular carrier 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 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 9 as of December 2025.

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.

$368 Cheap Flights from Portland to Lisbon in 2025/26

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 $751 to $1,362. The lowest price recently found on this route was $368.

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2:45 pm - 8:20 pm

PDX

LIS

21h 35m1 stop

9:20 pm - 6:00 pm

LIS

PDX

27h 40m1 stop

$368Icelandair

Sat, Mar 7 - Thu, Mar 19

2:45 pm - 8:20 pm

PDX

LIS

21h 35m1 stop

9:20 pm - 6:00 pm

LIS

PDX

27h 40m1 stop

$370Icelandair

Sat, Mar 7 - Thu, Mar 19

9:50 am - 9:20 am

PDX

LIS

39h 30m2 stops

5:00 am - 6:30 pm

LIS

PDX

21h 30m2 stops

$462Multiple Airlines

Mon, Feb 2 - Sun, Feb 15

9:50 am - 7:55 am

PDX

LIS

38h 05m2 stops

5:00 am - 6:49 pm

LIS

PDX

21h 49m2 stops

$477Lufthansa

Wed, Feb 18 - Wed, Feb 25

9:50 am - 9:20 am

PDX

LIS

39h 30m2 stops

3:25 pm - 10:32 pm

LIS

PDX

39h 07m2 stops

$479Multiple Airlines

Wed, Jan 7 - Wed, Jan 14

3:15 pm - 7:55 am

PDX

LIS

32h 40m2 stops

5:00 am - 6:30 pm

LIS

PDX

21h 30m2 stops

$482Multiple Airlines

Wed, Feb 4 - Wed, Feb 11

7:00 pm - 9:20 am

PDX

LIS

30h 20m2 stops

5:00 am - 6:30 pm

LIS

PDX

21h 30m2 stops

$483Multiple Airlines

Mon, Jan 12 - Mon, Jan 26

7:00 am - 8:40 am

PDX

LIS

17h 40m1 stop

5:00 am - 11:25 am

LIS

PDX

14h 25m1 stop

$486Delta

Wed, Feb 25 - Wed, Mar 4

7:00 pm - 9:20 am

PDX

LIS

30h 20m2 stops

6:10 am - 2:40 pm

LIS

PDX

40h 30m2 stops

$487Air Canada

Thu, Feb 26 - Fri, Mar 6

7:00 am - 8:55 am

PDX

LIS

17h 55m2 stops

5:00 am - 12:39 am

LIS

PDX

27h 39m2 stops

$488Multiple Airlines

Sat, Jan 24 - Sat, Jan 31

Lufthansa flights from Portland to Lisbon

Our best Lufthansa deals on Portland to Lisbon flight tickets

Lufthansa

Feb 18

PDX9:50 amPortland

38h 05m

2 stops

LIS7:55 amLisbon Humberto Delgado

Feb 25

LIS5:00 amLisbon Humberto Delgado

21h 49m

2 stops

PDX6:49 pmPortland

$477

Find similar

Lufthansa

Feb 27

PDX10:56 amPortland

27h 54m

2 stops

LIS10:50 pmLisbon Humberto Delgado

Mar 6

LIS5:00 amLisbon Humberto Delgado

22h 14m

2 stops

PDX7:14 pmPortland

$498

Find similar

Lufthansa

Feb 25

PDX7:00 amPortland

28h 55m

2 stops

LIS7:55 pmLisbon Humberto Delgado

Mar 8

LIS7:45 amLisbon Humberto Delgado

23h 59m

2 stops

PDX11:44 pmPortland

$503

Find similar

KLM flights from Portland to Lisbon

Our best KLM deals on Portland to Lisbon flight tickets

KLM

Feb 27

PDX1:25 pmPortland

25h 45m

1 stop

LIS11:10 pmLisbon Humberto Delgado

Mar 14

LIS9:50 amLisbon Humberto Delgado

33h 35m

1 stop

PDX12:25 pmPortland

$491

Find similar

KLM

Feb 28

PDX7:00 amPortland

18h 00m

1 stop

LIS9:00 amLisbon Humberto Delgado

Mar 7

LIS9:50 amLisbon Humberto Delgado

33h 35m

1 stop

PDX11:25 amPortland

$586

Find similar

KLM

Mar 11

PDX2:25 pmPortland

21h 05m

1 stop

LIS6:30 pmLisbon Humberto Delgado

Mar 18

LIS5:00 amLisbon Humberto Delgado

14h 25m

1 stop

PDX12:25 pmPortland

$591

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sat 3/7

2:45 pm-8:20 pm

1 stop21h 35m

Lisbon Humberto Delgado

Thu 3/19

9:20 pm-6:00 pm

1 stop27h 40m

$368

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sat 3/7

2:45 pm-8:20 pm

1 stop21h 35m

Lisbon Humberto Delgado

Thu 3/19

9:20 pm-6:00 pm

1 stop27h 40m

$370

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 2/2

9:50 am-9:20 am

2 stops39h 30m

Lisbon Humberto Delgado

Sun 2/15

5:00 am-6:30 pm

2 stops21h 30m

$462

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 2/18

9:50 am-7:55 am

2 stops38h 05m

Lisbon Humberto Delgado

Wed 2/25

5:00 am-6:49 pm

2 stops21h 49m

$477

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 1/7

9:50 am-9:20 am

2 stops39h 30m

Lisbon Humberto Delgado

Wed 1/14

3:25 pm-10:32 pm

2 stops39h 07m

$479

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 2/4

3:15 pm-7:55 am

2 stops32h 40m

Lisbon Humberto Delgado

Wed 2/11

5:00 am-6:30 pm

2 stops21h 30m

$482

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 1/12

7:00 pm-9:20 am

2 stops30h 20m

Lisbon Humberto Delgado

Mon 1/26

5:00 am-6:30 pm

2 stops21h 30m

$483

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 2/25

7:00 am-8:40 am

1 stop17h 40m

Lisbon Humberto Delgado

Wed 3/4

5:00 am-11:25 am

1 stop14h 25m

$486

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Thu 2/26

7:00 pm-9:20 am

2 stops30h 20m

Lisbon Humberto Delgado

Fri 3/6

6:10 am-2:40 pm

2 stops40h 30m

$487

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sat 1/24

7:00 am-8:55 am

2 stops17h 55m

Lisbon Humberto Delgado

Sat 1/31

5:00 am-12:39 am

2 stops27h 39m

$488

Flights are sorted by cheapest round-trip flights first.

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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 October is also very affordable. Most momondo users find prices during this month for around $740.

What is the cheapest day to depart on your flight to Lisbon?

Our data shows that Wednesday is the least expensive day to fly to Lisbon. Tickets to fly out on this day can be as low as $864. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Portland to Lisbon for around $1,041.

What is the cheapest time of day to depart on your flight to Lisbon?

The cheapest time of day to fly to Lisbon is in the afternoon when flights can be purchased for as low as $622. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $981 on average. Flights to Lisbon from Portland in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

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 $907 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 $785 on momondo.

Can stopping save me money on Portland to Lisbon flights?

You could potentially save up to 26% 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 December 2025, prices for Portland to Lisbon flights are approximately 13% 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	15h 55m
Direct flights	None

The fastest flight from Portland to Lisbon takes 15h 55m

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

Search flight deals

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 55m, 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 9 as of December 2025.
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 37% of all bookings. The subsequent popular airlines are Delta at 19%, United Airlines at 15%, 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 $391	Free Cancellation	Rating 7.0 589 reviews	Search Icelandair flights
KLM	PriceFrom $558	Free Cancellation	Rating 7.7 1,432 reviews	Search KLM flights
American Airlines	PriceFrom $564	Free Cancellation	Rating 7.2 11,049 reviews	Search American Airlines flights
Delta	PriceFrom $574	Free Cancellation	Rating 7.9 8,007 reviews	Search Delta flights
United Airlines	PriceFrom $586	Free Cancellation	Rating 7.4 9,094 reviews	Search United Airlines flights
Virgin Atlantic	PriceFrom $603	Free Cancellation	Rating 7.5 675 reviews	Search Virgin Atlantic flights
British Airways	PriceFrom $622	Free Cancellation	Rating 6.7 7,571 reviews	Search British Airways flights
Air Canada	PriceFrom $634	Free Cancellation	Rating 7.1 10,517 reviews	Search Air Canada flights
Lufthansa	PriceFrom $692	Free Cancellation	Rating 6.8 7,626 reviews	Search Lufthansa flights

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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 $368

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Lisbon departing on 3/7. 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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Lufthansa flights from Portland to Lisbon

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Our best KLM deals on Portland to Lisbon flight tickets

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Use the filters below to find and compare flights from Portland to Lisbon that are best for you.

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?

What is the cheapest day to depart on your flight to Lisbon?

Our data shows that Wednesday is the least expensive day to fly to Lisbon. Tickets to fly out on this day can be as low as $864. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Portland to Lisbon for around $1,041.

What is the cheapest time of day to depart on your flight to Lisbon?

How far in advance should I book a flight to Lisbon?

Can stopping save me money on Portland to Lisbon flights?

You could potentially save up to 26% 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 December 2025, prices for Portland to Lisbon flights are approximately 13% more expensive when compared to flights at the same time last year.

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

KLM is the most popular carrier operating from Portland to Lisbon Humberto Delgado

What airlines fly to Lisbon?

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

London (LHR) was the most common stop: 65% of momondo users choosing 1-stop flights on this route connected there.

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

Flights via Reykjavik (KEF) offer the lowest average round-trip price of $459.

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 40m.

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

Amsterdam (AMS) has the shortest average layover time for this route: 1h 25m.

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

How far is Portland to Lisbon Humberto Delgado by plane?

When did momondo last update prices for flights from Portland Airport to Lisbon Humberto Delgado Airport?

How many operators does momondo search for flights from Portland Airport to Lisbon Humberto Delgado Airport?

How old do you have to be to fly from Portland Airport to Lisbon Humberto Delgado Airport?

What documentation or ID do you need to fly to Lisbon Humberto Delgado Airport?

What is the most popular airline 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?

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.

Find better results for your trip to Portugal

Airports servicing Portugal