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

British Airways and Air Canada are the most popular carriers operating from Portland to Lisbon Humberto Delgado

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 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.

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.

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 Amsterdam (AMS) have the shortest average one-way travel time: 14h 15m.

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

London (LHR) was the most common stop: 48% 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 August 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.

$270 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

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:00 am - 8:55 am

PDX

LIS

15h 55m

2 stops

5:00 am - 8:46 pm

LIS

PDX

23h 46m

2 stops

$717Multiple Airlines

Wed, Oct 28 - Wed, Nov 11

7:00 am - 9:20 am

PDX

LIS

18h 20m

2 stops

5:00 am - 2:41 pm

LIS

PDX

17h 41m

2 stops

$724Multiple Airlines

Sun, Nov 1 - Tue, Nov 24

10:10 am - 9:20 am

PDX

LIS

15h 10m

2 stops

5:00 am - 2:41 pm

LIS

PDX

17h 41m

2 stops

$731Air Canada

Tue, Oct 13 - Wed, Dec 2

5:45 pm - 5:40 pm

PDX

LIS

15h 55m

1 stop

11:05 am - 9:59 pm

LIS

PDX

18h 54m

1 stop

$736British Airways

Wed, Nov 4 - Wed, Nov 11

6:45 pm - 5:40 pm

PDX

LIS

15h 55m

1 stop

11:05 am - 9:59 pm

LIS

PDX

18h 54m

1 stop

$736British Airways

Wed, Oct 28 - Wed, Nov 11

10:00 am - 10:40 am

PDX

LIS

40h 40m

2 stops

5:00 am - 7:12 pm

LIS

PDX

22h 12m

2 stops

$740Lufthansa

Sun, Nov 8 - Wed, Nov 18

10:00 am - 10:40 am

PDX

LIS

40h 40m

2 stops

5:00 am - 7:12 pm

LIS

PDX

22h 12m

2 stops

$741Lufthansa

Sun, Nov 8 - Wed, Nov 18

7:10 pm - 10:40 am

PDX

LIS

32h 30m

2 stops

5:00 am - 6:31 pm

LIS

PDX

21h 31m

2 stops

$742Air Canada

Sun, Oct 25 - Tue, Nov 3

7:00 am - 8:00 am

PDX

LIS

17h 00m

1 stop

5:00 am - 11:20 am

LIS

PDX

14h 20m

1 stop

$745Delta

Sun, Nov 8 - Wed, Nov 18

11:43 am - 5:30 pm

PDX

LIS

21h 47m

2 stops

5:00 am - 11:20 am

LIS

PDX

14h 20m

1 stop

$749Delta

Sun, Nov 8 - Wed, Nov 18

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Delta flights from Portland to Lisbon

Our best Delta deals on Portland to Lisbon flight tickets

Delta

Nov 8

PDX7:00 amPortland

17h 00m

1 stop

LIS8:00 amLisbon Humberto Delgado

Nov 18

LIS5:00 amLisbon Humberto Delgado

14h 20m

1 stop

PDX11:20 amPortland

$745

Delta

Nov 8

PDX11:43 amPortland

21h 47m

2 stops

LIS5:30 pmLisbon Humberto Delgado

Nov 18

LIS5:00 amLisbon Humberto Delgado

14h 20m

1 stop

PDX11:20 amPortland

$749

Delta

Nov 8

PDX11:43 amPortland

21h 47m

2 stops

LIS5:30 pmLisbon Humberto Delgado

Nov 18

LIS5:00 amLisbon Humberto Delgado

14h 20m

1 stop

PDX11:20 amPortland

$750

Air Canada flights from Portland to Lisbon

Our best Air Canada deals on Portland to Lisbon flight tickets

Air Canada

Oct 13

PDX10:10 amPortland

15h 10m

2 stops

LIS9:20 amLisbon Humberto Delgado

Dec 2

LIS5:00 amLisbon Humberto Delgado

17h 41m

2 stops

PDX2:41 pmPortland

$731

Air Canada

Oct 20

PDX7:45 pmPortland

29h 35m

2 stops

LIS9:20 amLisbon Humberto Delgado

Nov 10

LIS5:00 amLisbon Humberto Delgado

21h 31m

2 stops

PDX6:31 pmPortland

$742

Air Canada

Nov 8

PDX7:10 pmPortland

31h 30m

2 stops

LIS10:40 amLisbon Humberto Delgado

Nov 18

LIS5:00 amLisbon Humberto Delgado

17h 41m

2 stops

PDX2:41 pmPortland

$747

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 10/28

10:00 am-8:55 am

2 stops15h 55m

Lisbon Humberto Delgado

Wed 11/11

5:00 am-8:46 pm

2 stops23h 46m

$717

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sun 11/1

7:00 am-9:20 am

2 stops18h 20m

Lisbon Humberto Delgado

Tue 11/24

5:00 am-2:41 pm

2 stops17h 41m

$724

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Tue 10/13

10:10 am-9:20 am

2 stops15h 10m

Lisbon Humberto Delgado

Wed 12/2

5:00 am-2:41 pm

2 stops17h 41m

$731

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 11/4

5:45 pm-5:40 pm

1 stop15h 55m

Lisbon Humberto Delgado

Wed 11/11

11:05 am-9:59 pm

1 stop18h 54m

$736

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 10/28

6:45 pm-5:40 pm

1 stop15h 55m

Lisbon Humberto Delgado

Wed 11/11

11:05 am-9:59 pm

1 stop18h 54m

$736

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sun 11/8

10:00 am-10:40 am

2 stops40h 40m

Lisbon Humberto Delgado

Wed 11/18

5:00 am-7:12 pm

2 stops22h 12m

$740

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sun 11/8

10:00 am-10:40 am

2 stops40h 40m

Lisbon Humberto Delgado

Wed 11/18

5:00 am-7:12 pm

2 stops22h 12m

$741

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sun 10/25

7:10 pm-10:40 am

2 stops32h 30m

Lisbon Humberto Delgado

Tue 11/3

5:00 am-6:31 pm

2 stops21h 31m

$742

Quickest round-trip

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sun 11/8

7:00 am-8:00 am

1 stop17h 00m

Lisbon Humberto Delgado

Wed 11/18

5:00 am-11:20 am

1 stop14h 20m

$745

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sun 11/8

11:43 am-5:30 pm

2 stops21h 47m

Lisbon Humberto Delgado

Wed 11/18

5:00 am-11:20 am

1 stop14h 20m

$749

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 $754 to $1,074.
The lowest price recently found on this route was $717.

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 November 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 $864 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 21% 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 August 2026, prices for Portland to Lisbon flights are approximately 3% 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 10m
Direct flights	None

The fastest flight from Portland to Lisbon takes 15h 10m

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 10m, 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 August 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 47% of all bookings. The subsequent popular airlines are KLM at 18%, Delta at 15%, 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 7.5 694 reviews	Search Virgin Atlantic flights
Icelandair	PriceFrom $360	Free Cancellation	Rating 7.0 720 reviews	Search Icelandair flights
KLM	PriceFrom $492	Free Cancellation	Rating 7.8 1,552 reviews	Search KLM flights
Delta	PriceFrom $492	Free Cancellation	Rating 7.8 8,492 reviews	Search Delta flights
Lufthansa	PriceFrom $501	Free Cancellation	Rating 6.8 8,174 reviews	Search Lufthansa flights
British Airways	PriceFrom $510	Free Cancellation	Rating 6.7 8,142 reviews	Search British Airways flights
United Airlines	PriceFrom $549	Free Cancellation	Rating 7.4 10,062 reviews	Search United Airlines flights
Air Canada	PriceFrom $584	Free Cancellation	Rating 7.1 11,419 reviews	Search Air Canada flights

Sintra

Figueira da Foz

Setúbal

Estoril

Fátima

Nazaré

Evora

Ericeira

Leiria

Peniche

Óbidos

Sesimbra

Batalha

Tomar

Oeiras

Zambujeira do Mar

Torres Vedras

Comporta

Sines

Caldas da Rainha

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

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.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Tue 9/1

Tue 9/8

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Portugal

Nearby airports

Airlines

Cabin classes

Other Portugal destinations

Other flights from Portland

Complete your trip

Feeling lucky

Airports servicing Portugal

Cheap flights from Portland to Lisbon from $270

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 9/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Portland to Lisbon

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Delta flights from Portland to Lisbon

Our best Delta deals on Portland to Lisbon flight tickets

Air Canada flights from Portland to Lisbon

Our best Air Canada deals on Portland to Lisbon flight tickets

momondo Fare Finder

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?

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

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.

Popular cities in Portugal

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from Portland

According to popular flight searches on momondo this year

Complete your trip to Lisbon

Explore popular destinations other users love

According to popular flight searches on momondo this year