What airlines fly to Portugal?

British Airways, KLM and Delta 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 38% 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?

Delta, United Airlines, and British Airways 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 August 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.

$297 Cheap Flights from Portland to Portugal in 2026

Discover deals from 900+ travel sites with momondo.

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.

6:04 am - 10:35 amPDX Portland-OPO Porto

20h 31m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle

5:00 am - 11:20 amOPO Porto-PDX Portland

14h 20m1 stop Amsterdam Schiphol

$737Delta

Mon, Feb 1 - Wed, Feb 24

1:20 pm - 10:30 amPDX Portland-OPO Porto

13h 10m1 stop Amsterdam Schiphol

5:00 am - 11:20 amOPO Porto-PDX Portland

14h 20m1 stop Amsterdam Schiphol

$737KLM

Mon, Feb 1 - Wed, Feb 24

6:04 am - 10:35 amPDX Portland-OPO Porto

20h 31m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle

5:00 am - 6:43 pmOPO Porto-PDX Portland

21h 43m2 stops Amsterdam Schiphol Seattle/Tacoma Intl

$747Delta

Mon, Feb 1 - Wed, Feb 24

10:00 am - 11:45 amPDX Portland-OPO Porto

17h 45m2 stops Vancouver Intl Frankfurt am Main

12:05 pm - 8:33 pmOPO Porto-PDX Portland

40h 28m2 stops Zurich San Francisco

$748Multiple Airlines

Tue, Nov 24 - Wed, Dec 2

10:45 am - 9:30 amPDX Portland-OPO Porto

14h 45m2 stops Chicago O'Hare Intl Newark

12:35 pm - 9:21 pmOPO Porto-PDX Portland

16h 46m1 stop Newark

$755United Airlines

Mon, Dec 7 - Fri, Dec 11

5:15 am - 9:30 amPDX Portland-OPO Porto

20h 15m2 stops Denver Intl Newark

12:35 pm - 10:17 amOPO Porto-PDX Portland

29h 42m2 stops Newark Chicago O'Hare Intl

$755United Airlines

Wed, Dec 2 - Fri, Dec 4

7:00 pm - 9:20 pmPDX Portland-LIS Lisbon Humberto Delgado

18h 20m1 stop Reykjavik Keflavik Intl

6:10 am - 1:50 pmLIS Lisbon Humberto Delgado-PDX Portland

39h 40m2 stops Halifax Intl Calgary

$788Multiple Airlines

Wed, Aug 26 - Thu, Sep 10

5:45 pm - 4:45 pmPDX Portland-OPO Porto

15h 00m1 stop London Heathrow

8:40 pm - 3:50 pmOPO Porto-PDX Portland

51h 10m2 stops Madrid Barajas London Heathrow

$791British Airways

Sun, Jan 3 - Mon, Jan 11

1:05 pm - 6:10 pmPDX Portland-OPO Porto

21h 05m1 stop Amsterdam Schiphol

5:00 am - 11:10 amOPO Porto-PDX Portland

14h 10m1 stop Amsterdam Schiphol

$857KLM

Mon, Oct 5 - Tue, Oct 13

7:30 pm - 7:05 pmPDX Portland-FAO Faro

15h 35m1 stop London Heathrow

11:30 am - 5:40 pmFAO Faro-PDX Portland

14h 10m1 stop London Heathrow

$928British Airways

Wed, Sep 23 - Tue, Oct 20

Cheap last minute flights

Enter your travel dates to find the best prices.

7:00 am - 10:30 amPDX Portland-OPO Porto

19h 30m1 stop New York John F Kennedy Intl

5:00 am - 11:10 amOPO Porto-PDX Portland

14h 10m1 stop Amsterdam Schiphol

$1,025KLM

Mon, Aug 17 - Mon, Sep 7

6:45 am - 8:30 amPDX Portland-OPO Porto

17h 45m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle

5:00 am - 11:10 amOPO Porto-PDX Portland

14h 10m1 stop Amsterdam Schiphol

$1,029Delta

Mon, Aug 17 - Mon, Sep 7

6:45 am - 8:30 amPDX Portland-OPO Porto

17h 45m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle

5:00 am - 5:34 pmOPO Porto-PDX Portland

20h 34m2 stops Amsterdam Schiphol Minneapolis St Paul

$1,039Multiple Airlines

Mon, Aug 17 - Mon, Sep 7

3:30 pm - 11:25 pmPDX Portland-OPO Porto

23h 55m2 stops Vancouver Intl Munich Franz Josef Strauss

7:20 pm - 8:28 pmOPO Porto-PDX Portland

33h 08m2 stops Zurich San Francisco

$1,133Multiple Airlines

Mon, Aug 17 - Mon, Sep 7

3:43 pm - 7:00 amPDX Portland-OPO Porto

31h 17m3 stops San Francisco Denver Intl Montreal Pierre Elliott Trudeau Intl

9:00 am - 11:28 amOPO Porto-PDX Portland

34h 28m2 stops Newark Chicago O'Hare Intl

$1,288United Airlines

Mon, Aug 17 - Mon, Sep 7

6:00 am - 11:15 amPDX Portland-LIS Lisbon Humberto Delgado

21h 15m2 stops Minneapolis St Paul Paris Charles de Gaulle

5:35 am - 5:10 pmLIS Lisbon Humberto Delgado-PDX Portland

19h 35m2 stops Paris Charles de Gaulle Seattle/Tacoma Intl

$1,295Delta

Sat, Aug 22 - Sat, Sep 26

1:05 pm - 10:55 amPDX Portland-LIS Lisbon Humberto Delgado

13h 50m1 stop Amsterdam Schiphol

5:35 am - 5:10 pmLIS Lisbon Humberto Delgado-PDX Portland

19h 35m2 stops Paris Charles de Gaulle Seattle/Tacoma Intl

$1,295Delta

Sat, Aug 22 - Sat, Sep 26

7:30 pm - 6:05 pmPDX Portland-LIS Lisbon Humberto Delgado

14h 35m1 stop London Heathrow

7:10 am - 5:40 pmLIS Lisbon Humberto Delgado-PDX Portland

18h 30m1 stop London Heathrow

$1,418British Airways

Sat, Aug 22 - Sat, Sep 26

5:30 am - 8:40 amPDX Portland-PDL Ponta Delgada Nordela

20h 10m2 stops San Francisco Newark

11:00 am - 10:45 pmPDL Ponta Delgada Nordela-PDX Portland

18h 45m2 stops Newark San Francisco

$5,125Lufthansa

Wed, Aug 19 - Fri, Aug 21

11:15 am - 8:40 amPDX Portland-PDL Ponta Delgada Nordela

14h 25m1 stop Newark

11:00 am - 8:59 pmPDL Ponta Delgada Nordela-PDX Portland

16h 59m2 stops Newark San Francisco

$5,130Lufthansa

Wed, Aug 19 - Fri, Aug 21

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Lufthansa flights from Portland to Portugal

Our best Lufthansa deals on Portland to Portugal flight tickets

Lufthansa

Oct 22

PDX3:30 pmPortland

33h 50m

2 stops

LIS9:20 amLisbon Humberto Delgado

Nov 4

LIS5:00 amLisbon Humberto Delgado

22h 12m

2 stops

PDX7:12 pmPortland

$791

Lufthansa

Oct 5

PDX3:30 pmPortland

33h 50m

2 stops

LIS9:20 amLisbon Humberto Delgado

Oct 16

LIS5:05 amLisbon Humberto Delgado

21h 48m

2 stops

PDX6:53 pmPortland

$802

Lufthansa

Oct 15

PDX3:30 pmPortland

33h 50m

2 stops

LIS9:20 amLisbon Humberto Delgado

Oct 30

LIS5:00 amLisbon Humberto Delgado

21h 12m

2 stops

PDX7:12 pmPortland

$822

Air Canada flights from Portland to Portugal

Our best Air Canada deals on Portland to Portugal flight tickets

Air Canada

Oct 31

PDX3:15 pmPortland

35h 05m

2 stops

LIS9:20 amLisbon Humberto Delgado

Nov 8

LIS5:00 amLisbon Humberto Delgado

23h 46m

2 stops

PDX8:46 pmPortland

$797

Air Canada

Nov 13

PDX7:00 amPortland

18h 20m

2 stops

LIS9:20 amLisbon Humberto Delgado

Nov 21

LIS5:00 amLisbon Humberto Delgado

21h 31m

2 stops

PDX6:31 pmPortland

$843

Air Canada

Sep 14

PDX7:45 pmPortland

51h 15m

2 stops

OPO7:00 amPorto

Sep 22

OPO12:15 pmPorto

31h 13m

2 stops

PDX11:28 amPortland

$906

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandPorto

PDX Portland - OPO Porto

PDXOPO

Portland

Mon 2/1

6:04 am-10:35 am

2 stops20h 31m

Porto

Wed 2/24

5:00 am-11:20 am

1 stop14h 20m

$737

Quickest round-trip

PortlandPorto

PDX Portland - OPO Porto

PDXOPO

Portland

Mon 2/1

1:20 pm-10:30 am

1 stop13h 10m

Porto

Wed 2/24

5:00 am-11:20 am

1 stop14h 20m

$737

PortlandPorto

PDX Portland - OPO Porto

PDXOPO

Portland

Mon 2/1

6:04 am-10:35 am

2 stops20h 31m

Porto

Wed 2/24

5:00 am-6:43 pm

2 stops21h 43m

$747

PortlandPorto

PDX Portland - OPO Porto

PDXOPO

Portland

Tue 11/24

10:00 am-11:45 am

2 stops17h 45m

Porto

Wed 12/2

12:05 pm-8:33 pm

2 stops40h 28m

$748

PortlandPorto

PDX Portland - OPO Porto

PDXOPO

Portland

Mon 12/7

10:45 am-9:30 am

2 stops14h 45m

Porto

Fri 12/11

12:35 pm-9:21 pm

1 stop16h 46m

$755

PortlandPorto

PDX Portland - OPO Porto

PDXOPO

Portland

Wed 12/2

5:15 am-9:30 am

2 stops20h 15m

Porto

Fri 12/4

12:35 pm-10:17 am

2 stops29h 42m

$755

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Wed 8/26

7:00 pm-9:20 pm

1 stop18h 20m

Lisbon Humberto Delgado

Thu 9/10

6:10 am-1:50 pm

2 stops39h 40m

$788

PortlandPorto

PDX Portland - OPO Porto

PDXOPO

Portland

Sun 1/3

5:45 pm-4:45 pm

1 stop15h 00m

Porto

Mon 1/11

8:40 pm-3:50 pm

2 stops51h 10m

$791

PortlandPorto

PDX Portland - OPO Porto

PDXOPO

Portland

Mon 10/5

1:05 pm-6:10 pm

1 stop21h 05m

Porto

Tue 10/13

5:00 am-11:10 am

1 stop14h 10m

$857

PortlandFaro

PDX Portland - FAO Faro

PDXFAO

Portland

Wed 9/23

7:30 pm-7:05 pm

1 stop15h 35m

Faro

Tue 10/20

11:30 am-5:40 pm

1 stop14h 10m

$928

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 February. Flight prices, which tend to average around $623, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of February, then book flights to Portugal from Portland during November instead. Flights to Portugal in November, while not as cheap as those in February, still average around $669.

How far in advance should I book a flight from Portland 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 $874 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 $745 on momondo.

Can stopping save me money on Portland to Portugal flights?

You could potentially save up to 11% 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 August 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
Virgin Atlantic	PriceFrom $318	Free Cancellation	Rating 7.5 694 reviews	Search Virgin Atlantic flights
Icelandair	PriceFrom $360	Free Cancellation	Rating 6.9 731 reviews	Search Icelandair flights
KLM	PriceFrom $492	Free Cancellation	Rating 7.8 1,559 reviews	Search KLM flights
Delta	PriceFrom $494	Free Cancellation	Rating 7.8 8,504 reviews	Search Delta flights
Lufthansa	PriceFrom $501	Free Cancellation	Rating 6.8 8,195 reviews	Search Lufthansa flights
United Airlines	PriceFrom $502	Free Cancellation	Rating 7.4 10,105 reviews	Search United Airlines flights
British Airways	PriceFrom $509	Free Cancellation	Rating 6.7 8,168 reviews	Search British Airways flights
Air Canada	PriceFrom $584	Free Cancellation	Rating 7.1 11,481 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 $562

Flights to Portofrom $541

Flights to Funchalfrom $604

Flights to Farofrom $541

Flights to Ponta Delgadafrom $580

Flights to Lajesfrom $635

Flights to Hortafrom $712

Flights to Pico Islandfrom $674

Flights to Porto Santofrom $713

Flights to Velasfrom $687

Cheap flights from Portland to Portugal from $297

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 10/12. 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 Portugal

Our best Lufthansa deals on Portland to Portugal flight tickets

Air Canada flights from Portland to Portugal

Our best Air Canada deals on Portland to Portugal flight tickets

momondo Fare Finder

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

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 from Portland 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

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