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 37% 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?

United Airlines, KLM, 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 September 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.

$269 Cheap Flights from Portland to Portugal in 2026/27

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.

2:45 pm - 12:50 pmPDX Portland-LIS Lisbon Humberto Delgado

14h 05m1 stop Reykjavik Keflavik Intl

2:00 pm - 5:00 pmLIS Lisbon Humberto Delgado-PDX Portland

35h 00m1 stop Reykjavik Keflavik Intl

$547Icelandair

Sat, Nov 14 - Sun, Nov 22

2:45 pm - 12:50 pmPDX Portland-LIS Lisbon Humberto Delgado

14h 05m1 stop Reykjavik Keflavik Intl

11:35 am - 5:00 pmLIS Lisbon Humberto Delgado-PDX Portland

13h 25m1 stop Reykjavik Keflavik Intl

$557Icelandair

Wed, Jan 13 - Tue, Jan 26

12:29 pm - 9:00 amPDX Portland-LIS Lisbon Humberto Delgado

36h 31m2 stops Seattle/Tacoma Intl Boston Logan Intl

11:15 am - 5:11 pmLIS Lisbon Humberto Delgado-PDX Portland

37h 56m2 stops Boston Logan Intl Seattle/Tacoma Intl

$589Virgin Atlantic

Mon, Nov 2 - Tue, Nov 17

5:45 pm - 5:45 pmPDX Portland-LIS Lisbon Humberto Delgado

16h 00m1 stop London Heathrow

6:30 am - 8:58 pmLIS Lisbon Humberto Delgado-PDX Portland

22h 28m2 stops Madrid Barajas Dallas/Fort Worth

$590Multiple Airlines

Wed, Jan 13 - Wed, Jan 27

7:15 am - 2:55 pmPDX Portland-LIS Lisbon Humberto Delgado

23h 40m2 stops Dallas/Fort Worth London Heathrow

6:30 am - 8:58 pmLIS Lisbon Humberto Delgado-PDX Portland

22h 28m2 stops Madrid Barajas Dallas/Fort Worth

$594Multiple Airlines

Wed, Jan 13 - Wed, Jan 27

8:30 am - 10:05 amPDX Portland-LIS Lisbon Humberto Delgado

17h 35m1 stop Washington, D.C. Dulles Intl

12:50 pm - 8:15 pmLIS Lisbon Humberto Delgado-PDX Portland

39h 25m2 stops Montreal Pierre Elliott Trudeau Intl Washington, D.C. Dulles Intl

$595United Airlines

Tue, Nov 10 - Tue, Nov 17

8:30 am - 10:05 amPDX Portland-LIS Lisbon Humberto Delgado

17h 35m1 stop Washington, D.C. Dulles Intl

12:50 pm - 10:27 pmLIS Lisbon Humberto Delgado-PDX Portland

41h 37m3 stops Montreal Pierre Elliott Trudeau Intl Washington, D.C. Dulles Intl Chicago O'Hare Intl

$595United Airlines

Tue, Nov 10 - Tue, Nov 17

7:10 pm - 6:55 amPDX Portland-LIS Lisbon Humberto Delgado

27h 45m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

11:20 am - 6:39 pmLIS Lisbon Humberto Delgado-PDX Portland

39h 19m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$599Air Canada

Tue, Jan 12 - Thu, Jan 28

10:00 am - 10:40 amPDX Portland-LIS Lisbon Humberto Delgado

40h 40m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

11:20 am - 10:27 pmLIS Lisbon Humberto Delgado-PDX Portland

43h 07m2 stops Toronto Pearson Intl Chicago O'Hare Intl

$599Air Canada

Sun, Nov 8 - Wed, Nov 18

7:00 am - 8:00 amPDX Portland-LIS Lisbon Humberto Delgado

17h 00m1 stop New York John F Kennedy Intl

10:00 am - 11:51 pmLIS Lisbon Humberto Delgado-PDX Portland

21h 51m2 stops New York John F Kennedy Intl Salt Lake City

$625Virgin Atlantic

Wed, Jan 6 - Wed, Jan 20

Cheap last minute flights

Enter your travel dates to find the best prices.

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

21h 05m1 stop Amsterdam Schiphol

5:55 am - 5:04 pmOPO Porto-PDX Portland

19h 09m2 stops Paris Charles de Gaulle Seattle/Tacoma Intl

$820KLM

Fri, Oct 2 - Sun, Oct 11

1:05 pm - 7:10 pmPDX Portland-OPO Porto

22h 05m1 stop Amsterdam Schiphol

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

14h 10m1 stop Amsterdam Schiphol

$890KLM

Thu, Oct 1 - Thu, Oct 15

1:05 pm - 7:10 pmPDX Portland-OPO Porto

22h 05m1 stop Amsterdam Schiphol

5:55 am - 2:51 pmOPO Porto-PDX Portland

16h 56m2 stops Paris Charles de Gaulle Seattle/Tacoma Intl

$900Multiple Airlines

Thu, Oct 1 - Thu, Oct 15

2:27 pm - 10:45 pmPDX Portland-OPO Porto

48h 18m2 stops Chicago O'Hare Intl Frankfurt am Main

6:00 am - 10:23 pmOPO Porto-PDX Portland

48h 23m2 stops Frankfurt am Main Chicago O'Hare Intl

$933Lufthansa

Thu, Oct 1 - Thu, Oct 15

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

19h 20m1 stop New York John F Kennedy Intl

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

14h 10m1 stop Amsterdam Schiphol

$965Delta

Mon, Sep 28 - Fri, Oct 9

11:54 am - 3:25 pmPDX Portland-OPO Porto

19h 31m2 stops Detroit Metropolitan Wayne County Paris Charles de Gaulle

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

14h 10m1 stop Amsterdam Schiphol

$968Delta

Mon, Sep 28 - Fri, Oct 9

11:59 pm - 7:00 amPDX Portland-OPO Porto

23h 01m2 stops Houston George Bush Intcntl Montreal Pierre Elliott Trudeau Intl

6:20 am - 9:31 amOPO Porto-PDX Portland

35h 11m2 stops Munich Franz Josef Strauss Vancouver Intl

$968Multiple Airlines

Mon, Sep 28 - Fri, Oct 9

3:30 pm - 9:20 amPDX Portland-LIS Lisbon Humberto Delgado

33h 50m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

5:05 am - 9:31 amLIS Lisbon Humberto Delgado-PDX Portland

36h 26m2 stops Frankfurt am Main Vancouver Intl

$1,044Air Canada

Sun, Sep 27 - Tue, Oct 6

7:45 pm - 9:20 amPDX Portland-LIS Lisbon Humberto Delgado

29h 35m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

5:05 am - 7:11 pmLIS Lisbon Humberto Delgado-PDX Portland

22h 06m2 stops Frankfurt am Main Vancouver Intl

$1,044Air Canada

Sun, Sep 27 - Tue, Oct 6

8:25 am - 10:30 amPDX Portland-LIS Lisbon Humberto Delgado

18h 05m1 stop Washington, D.C. Dulles Intl

5:05 am - 2:46 pmLIS Lisbon Humberto Delgado-PDX Portland

17h 41m2 stops Frankfurt am Main Vancouver Intl

$1,045United Airlines

Sun, Sep 27 - Tue, Oct 6

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American Airlines flights from Portland to Portugal

Our best American Airlines deals on Portland to Portugal flight tickets

American Airlines

Nov 2

PDX5:45 pmPortland

17h 05m

1 stop

LIS6:50 pmLisbon Humberto Delgado

Nov 17

LIS11:05 amLisbon Humberto Delgado

18h 54m

1 stop

PDX9:59 pmPortland

$603

American Airlines

Nov 18

PDX1:22 pmPortland

17h 33m

2 stops

LIS2:55 pmLisbon Humberto Delgado

Nov 24

LIS8:20 amLisbon Humberto Delgado

20h 09m

2 stops

PDX8:29 pmPortland

$606

American Airlines

Oct 28

PDX1:12 pmPortland

18h 43m

2 stops

LIS2:55 pmLisbon Humberto Delgado

Nov 6

LIS11:05 amLisbon Humberto Delgado

18h 54m

1 stop

PDX9:59 pmPortland

$613

Icelandair flights from Portland to Portugal

Our best Icelandair deals on Portland to Portugal flight tickets

Icelandair

Nov 14

PDX2:45 pmPortland

14h 05m

1 stop

LIS12:50 pmLisbon Humberto Delgado

Nov 22

LIS2:00 pmLisbon Humberto Delgado

35h 00m

1 stop

PDX5:00 pmPortland

$547

Icelandair

Jan 13

PDX2:45 pmPortland

14h 05m

1 stop

LIS12:50 pmLisbon Humberto Delgado

Jan 26

LIS11:35 amLisbon Humberto Delgado

13h 25m

1 stop

PDX5:00 pmPortland

$557

Icelandair

Nov 7

PDX2:45 pmPortland

14h 05m

1 stop

LIS12:50 pmLisbon Humberto Delgado

Nov 17

LIS1:55 pmLisbon Humberto Delgado

35h 05m

1 stop

PDX5:00 pmPortland

$559

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Sat 11/14

2:45 pm-12:50 pm

1 stop14h 05m

Lisbon Humberto Delgado

Sun 11/22

2:00 pm-5:00 pm

1 stop35h 00m

$547

Quickest round-trip

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Wed 1/13

2:45 pm-12:50 pm

1 stop14h 05m

Lisbon Humberto Delgado

Tue 1/26

11:35 am-5:00 pm

1 stop13h 25m

$557

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Mon 11/2

12:29 pm-9:00 am

2 stops36h 31m

Lisbon Humberto Delgado

Tue 11/17

11:15 am-5:11 pm

2 stops37h 56m

$589

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Wed 1/13

5:45 pm-5:45 pm

1 stop16h 00m

Lisbon Humberto Delgado

Wed 1/27

6:30 am-8:58 pm

2 stops22h 28m

$590

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Wed 1/13

7:15 am-2:55 pm

2 stops23h 40m

Lisbon Humberto Delgado

Wed 1/27

6:30 am-8:58 pm

2 stops22h 28m

$594

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Tue 11/10

8:30 am-10:05 am

1 stop17h 35m

Lisbon Humberto Delgado

Tue 11/17

12:50 pm-8:15 pm

2 stops39h 25m

$595

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Tue 11/10

8:30 am-10:05 am

1 stop17h 35m

Lisbon Humberto Delgado

Tue 11/17

12:50 pm-10:27 pm

3 stops41h 37m

$595

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Tue 1/12

7:10 pm-6:55 am

2 stops27h 45m

Lisbon Humberto Delgado

Thu 1/28

11:20 am-6:39 pm

2 stops39h 19m

$599

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Sun 11/8

10:00 am-10:40 am

2 stops40h 40m

Lisbon Humberto Delgado

Wed 11/18

11:20 am-10:27 pm

2 stops43h 07m

$599

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Wed 1/6

7:00 am-8:00 am

1 stop17h 00m

Lisbon Humberto Delgado

Wed 1/20

10:00 am-11:51 pm

2 stops21h 51m

$625

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 December. Flight prices, which tend to average around $609, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of December, then book flights to Portugal from Portland during February instead. Flights to Portugal in February, while not as cheap as those in December, still average around $612.

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 $876 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

Best Price Found	$269
Fastest flight time	13h 35m
Direct flights	None

The best one-way flight to Portugal from Portland in the past 72 hours is $269. The best round-trip flight deal from Portland to Portugal found on momondo in the last 72 hours is $547.

The fastest flight from Portland to Portugal takes 13h 35m

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 September 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 7.4 694 reviews	Search Virgin Atlantic flights
Icelandair	PriceFrom $360	Free Cancellation	Rating 6.9 753 reviews	Search Icelandair flights
KLM	PriceFrom $492	Free Cancellation	Rating 7.8 1,578 reviews	Search KLM flights
Delta	PriceFrom $492	Free Cancellation	Rating 7.8 8,611 reviews	Search Delta flights
Lufthansa	PriceFrom $501	Free Cancellation	Rating 6.8 8,240 reviews	Search Lufthansa flights
United Airlines	PriceFrom $502	Free Cancellation	Rating 7.4 10,245 reviews	Search United Airlines flights
British Airways	PriceFrom $508	Free Cancellation	Rating 6.7 8,238 reviews	Search British Airways flights
Air Canada	PriceFrom $576	Free Cancellation	Rating 7.1 11,694 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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Other flights to Portugal

Airlines

Cabin classes

Complete your trip

Feeling lucky

Popular cities in Portugal

Flights to Lisbonfrom $457

Flights to Portofrom $450

Flights to Funchalfrom $567

Flights to Farofrom $470

Flights to Ponta Delgadafrom $557

Flights to Lajesfrom $559

Flights to Hortafrom $582

Flights to Pico Islandfrom $584

Flights to Porto Santofrom $943

Flights to Velasfrom $586

Cheap flights from Portland to Portugal from $269

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 10/26. 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 Portugal

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Big names and deals

Big names and deals

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Trusted and free

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American Airlines flights from Portland to Portugal

Our best American Airlines deals on Portland to Portugal flight tickets

Icelandair flights from Portland to Portugal

Our best Icelandair 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

Best Price Found

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