What airlines fly to Portugal?

British Airways, Delta and KLM are the top three most popular airlines that fly to Portugal from Portland according to our data. British Airways is the first choice among our users, with 40% of people opting to fly with this airline when traveling to Portugal. Keep in mind that there are 8 different airlines that fly to Portugal on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Portland to Portugal?

American Airlines and Iberia are the most popular carriers operating from Portland to Portugal

When did momondo last update prices for flights from Portland Airport to Portugal?

Prices for flights from Portland Airport to Portugal are refreshed on a daily basis.

How many operators does momondo search for flights from Portland Airport to Portugal?

As of April 2026, there are 8 operators available to choose from for flights from Portland Airport to Portugal.

How old do you have to be to fly from Portland Airport to Portugal?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Portland Airport to Portugal.

What documentation or ID do you need to fly to Portugal?

The travel and health documents required for your trip to Portugal can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Portugal. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$345 Cheap Flights from Portland to Portugal in 2026

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0 bags

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Find the cheapest flights from Portland to Portugal

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:45 pm - 11:05 am

PDX

LIS

31h 20m

2 stops

5:00 am - 6:30 pm

LIS

PDX

21h 30m

2 stops

$709Air Canada

Fri, Oct 16 - Mon, Nov 2

7:45 pm - 11:05 am

PDX

LIS

31h 20m

2 stops

10:15 am - 9:21 pm

LIS

PDX

19h 06m

1 stop

$761Lufthansa

Fri, Oct 16 - Mon, Nov 2

1:28 pm - 11:25 pm

PDX

LIS

25h 57m

2 stops

4:35 pm - 7:01 pm

LIS

PDX

34h 26m

2 stops

$770Finnair

Fri, Oct 16 - Mon, Oct 19

7:00 am - 9:05 am

PDX

LIS

18h 05m

2 stops

11:05 am - 8:06 pm

LIS

PDX

16h 01m

1 stop

$775Multiple Airlines

Thu, Oct 15 - Fri, Oct 30

7:00 am - 8:00 am

PDX

LIS

17h 00m

1 stop

5:00 am - 11:25 am

LIS

PDX

14h 25m

1 stop

$781KLM

Fri, Oct 16 - Mon, Nov 2

7:11 am - 11:05 am

PDX

LIS

19h 54m

2 stops

11:55 am - 12:54 am

LIS

PDX

19h 59m

2 stops

$783United Airlines

Thu, Oct 15 - Fri, Oct 30

8:30 am - 11:05 am

PDX

LIS

18h 35m

2 stops

11:55 am - 9:30 am

LIS

PDX

28h 35m

2 stops

$784United Airlines

Thu, Oct 15 - Fri, Oct 30

1:05 pm - 6:05 pm

PDX

FAO

21h 00m

1 stop

6:55 pm - 11:10 am

FAO

PDX

24h 15m

1 stop

$1,026KLM

Sat, Oct 3 - Sun, Oct 11

2:02 pm - 6:55 pm

PDX

FAO

44h 53m

2 stops

12:15 pm - 9:49 pm

FAO

PDX

41h 34m

2 stops

$1,340British Airways

Sat, Jul 11 - Sat, Jul 18

1:45 pm - 12:00 pm

PDX

FAO

38h 15m

2 stops

6:45 pm - 5:40 pm

FAO

PDX

30h 55m

1 stop

$1,341British Airways

Sat, May 30 - Sat, Jun 6

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Air Canada flights from Portland to Portugal

Our best Air Canada deals on Portland to Portugal flight tickets

Air Canada

Oct 16

PDX7:45 pmPortland

31h 20m

2 stops

LIS11:05 amLisbon Humberto Delgado

Nov 2

LIS5:00 amLisbon Humberto Delgado

21h 30m

2 stops

PDX6:30 pmPortland

$709

Air Canada

Sep 20

PDX7:45 pmPortland

31h 15m

2 stops

LIS11:00 amLisbon Humberto Delgado

Sep 29

LIS1:00 pmLisbon Humberto Delgado

37h 05m

2 stops

PDX6:05 pmPortland

$801

Air Canada

Sep 22

PDX7:13 pmPortland

31h 52m

2 stops

LIS11:05 amLisbon Humberto Delgado

Oct 1

LIS1:00 pmLisbon Humberto Delgado

34h 05m

2 stops

PDX3:05 pmPortland

$806

Lufthansa flights from Portland to Portugal

Our best Lufthansa deals on Portland to Portugal flight tickets

Lufthansa

Oct 16

PDX7:45 pmPortland

31h 20m

2 stops

LIS11:05 amLisbon Humberto Delgado

Nov 2

LIS10:15 amLisbon Humberto Delgado

19h 06m

1 stop

PDX9:21 pmPortland

$761

Lufthansa

May 5

PDX1:37 pmPortland

25h 48m

2 stops

OPO11:25 pmPorto

May 19

OPO6:20 amPorto

19h 24m

2 stops

PDX5:44 pmPortland

$949

Lufthansa

Aug 20

PDX7:45 pmPortland

27h 15m

2 stops

OPO7:00 amPorto

Aug 26

OPO2:25 pmPorto

18h 22m

1 stop

PDX12:47 amPortland

$953

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Fri 10/16

7:45 pm-11:05 am

2 stops31h 20m

Lisbon Humberto Delgado

Mon 11/2

5:00 am-6:30 pm

2 stops21h 30m

$709

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Fri 10/16

7:45 pm-11:05 am

2 stops31h 20m

Lisbon Humberto Delgado

Mon 11/2

10:15 am-9:21 pm

1 stop19h 06m

$761

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Fri 10/16

1:28 pm-11:25 pm

2 stops25h 57m

Lisbon Humberto Delgado

Mon 10/19

4:35 pm-7:01 pm

2 stops34h 26m

$770

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Thu 10/15

7:00 am-9:05 am

2 stops18h 05m

Lisbon Humberto Delgado

Fri 10/30

11:05 am-8:06 pm

1 stop16h 01m

$775

Quickest round-trip

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Fri 10/16

7:00 am-8:00 am

1 stop17h 00m

Lisbon Humberto Delgado

Mon 11/2

5:00 am-11:25 am

1 stop14h 25m

$781

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Thu 10/15

7:11 am-11:05 am

2 stops19h 54m

Lisbon Humberto Delgado

Fri 10/30

11:55 am-12:54 am

2 stops19h 59m

$783

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Thu 10/15

8:30 am-11:05 am

2 stops18h 35m

Lisbon Humberto Delgado

Fri 10/30

11:55 am-9:30 am

2 stops28h 35m

$784

PortlandFaro

PDX - FAO

PDXFAO

Portland

Sat 10/3

1:05 pm-6:05 pm

1 stop21h 00m

Faro

Sun 10/11

6:55 pm-11:10 am

1 stop24h 15m

$1,026

PortlandFaro

PDX - FAO

PDXFAO

Portland

Sat 7/11

2:02 pm-6:55 pm

2 stops44h 53m

Faro

Sat 7/18

12:15 pm-9:49 pm

2 stops41h 34m

$1,340

PortlandFaro

PDX - FAO

PDXFAO

Portland

Sat 5/30

1:45 pm-12:00 pm

2 stops38h 15m

Faro

Sat 6/6

6:45 pm-5:40 pm

1 stop30h 55m

$1,341

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 Portugal

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

What is the cheapest month to fly to Portugal?

The cheapest month to fly to Portugal from Portland is in November. Flight prices, which tend to average around $558, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of November, then book flights to Portugal from Portland during February instead. Flights to Portugal in February, while not as cheap as those in November, still average around $599.

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

You are more likely to see cheaper flights to Portugal from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Portugal for around $816 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portugal from Portland for as low as $682 on momondo.

Can stopping save me money on Portland to Portugal flights?

You could potentially save up to 27% on your flight if you consider stops on a Portland to Portugal flight.

Cheap Portland to Portugal flight deals and tips

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

Fastest flight time	14h 25m
Direct flights	None

The fastest flight from Portland to Portugal takes 14h 25m

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

Search flight deals

Frequently asked questions about flying from Portland to Portugal

When did momondo last update prices for flights from Portland Airport to Portugal?
Prices for flights from Portland Airport to Portugal are refreshed on a daily basis.
How many operators does momondo search for flights from Portland Airport to Portugal?
As of April 2026, there are 8 operators available to choose from for flights from Portland Airport to Portugal.
How old do you have to be to fly from Portland Airport to Portugal?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Portland Airport to Portugal.
What documentation or ID do you need to fly to Portugal?
The travel and health documents required for your trip to Portugal can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Portugal. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Portland to Portugal

Compare and see reviews for airlines that fly from Portland to Portugal with momondo

Airline	Rating	Free Cancellation	Price
Icelandair	PriceFrom $360	Free Cancellation	Rating 7.0 636 reviews	Search Icelandair flights
KLM	PriceFrom $492	Free Cancellation	Rating 7.8 1,501 reviews	Search KLM flights
Delta	PriceFrom $494	Free Cancellation	Rating 7.9 8,422 reviews	Search Delta flights
Lufthansa	PriceFrom $501	Free Cancellation	Rating 6.8 7,930 reviews	Search Lufthansa flights
British Airways	PriceFrom $510	Free Cancellation	Rating 6.7 7,895 reviews	Search British Airways flights
American Airlines	PriceFrom $524	Free Cancellation	Rating 7.1 11,621 reviews	Search American Airlines flights
United Airlines	PriceFrom $537	Free Cancellation	Rating 7.4 9,604 reviews	Search United Airlines flights
Air Canada	PriceFrom $577	Free Cancellation	Rating 7.1 10,941 reviews	Search Air Canada flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Portland to Portugal. momondo saves you time and could save you money on your trip.

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

All flight searches from Portland to Portugal on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Portland to Portugal?

Once all potential Portland to Portugal flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Portland to Portugal right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Portland to Portugal now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Portugal and let you know when they change.

An easier way to manage your Portugal 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.

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Popular cities

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Complete your trip

Feeling lucky

Popular cities in Portugal

Flights to Lisbonfrom $459

Flights to Portofrom $498

Flights to Funchalfrom $630

Flights to Farofrom $540

Flights to Ponta Delgadafrom $642

Flights to Lajesfrom $669

Flights to Pico Islandfrom $667

Flights to Hortafrom $675

Flights to Porto Santofrom $818

Flights to Velasfrom $665

Cheap flights from Portland to Portugal from $345

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 Portugal departing on 4/29. 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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Air Canada flights from Portland to Portugal

Our best Air Canada deals on Portland to Portugal flight tickets

Lufthansa flights from Portland to Portugal

Our best Lufthansa deals on Portland to Portugal flight tickets

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See travel insights to Portugal from

How to get the cheapest flight ticket from Portland to Portugal

What is the cheapest month to fly to Portugal?

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

Can stopping save me money on Portland to Portugal flights?

What is the cheapest airline that flies from Portland to Portugal?

What airlines fly to Portugal?

Cheap Portland to Portugal flight deals and tips

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

Fastest flight time

Direct flights

Frequently asked questions about flying from Portland to Portugal

Best airlines flying from Portland to Portugal

Compare and see reviews for airlines that fly from Portland to Portugal with momondo

Why use momondo?

An easier way to manage your Portugal 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

Popular cities in Portugal

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

Portland flight routes

According to popular flight searches on momondo this year

Portugal flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Portugal

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Portugal

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

Complete your trip to Portugal

Explore popular destinations other users love

According to popular flight searches on momondo this year