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?

British Airways, American Airlines, and Icelandair 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.

$278 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.

5:45 pm - 9:45 pmPDX Portland-LIS Lisbon Humberto Delgado

20h 00m1 stop London Heathrow

8:20 am - 7:47 pmLIS Lisbon Humberto Delgado-PDX Portland

19h 27m2 stops Madrid Barajas Chicago O'Hare Intl

$603Multiple Airlines

Sun, Nov 8 - Wed, Nov 18

5:45 pm - 9:55 pmPDX Portland-LIS Lisbon Humberto Delgado

20h 10m1 stop London Heathrow

8:45 pm - 11:07 amLIS Lisbon Humberto Delgado-PDX Portland

22h 22m2 stops Madrid Barajas Dallas/Fort Worth

$603Multiple Airlines

Wed, Nov 11 - Mon, Nov 16

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

16h 00m1 stop London Heathrow

11:05 am - 9:59 pmLIS Lisbon Humberto Delgado-PDX Portland

18h 54m1 stop Philadelphia

$609British Airways

Sun, Nov 8 - Wed, Nov 18

6:45 pm - 5:45 pmPDX Portland-LIS Lisbon Humberto Delgado

16h 00m1 stop London Heathrow

11:05 am - 9:59 pmLIS Lisbon Humberto Delgado-PDX Portland

18h 54m1 stop Philadelphia

$609British Airways

Wed, Oct 28 - Fri, Nov 6

7:10 am - 8:00 amPDX Portland-LIS Lisbon Humberto Delgado

16h 50m1 stop New York John F Kennedy Intl

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

20h 00m1 stop New York John F Kennedy Intl

$616KLM

Tue, Nov 10 - Wed, Nov 18

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

17h 00m1 stop New York John F Kennedy Intl

11:30 am - 11:40 amLIS Lisbon Humberto Delgado-PDX Portland

32h 10m1 stop Amsterdam Schiphol

$617Delta

Mon, Nov 2 - Tue, Nov 10

7:00 am - 9:00 amPDX Portland-LIS Lisbon Humberto Delgado

18h 00m2 stops New York John F Kennedy Intl Boston Logan Intl

10:55 am - 10:07 pmLIS Lisbon Humberto Delgado-PDX Portland

19h 12m2 stops Boston Logan Intl Detroit Metropolitan Wayne County

$620Delta

Tue, Nov 3 - Fri, Nov 13

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

$620Icelandair

Mon, Nov 16 - Thu, Nov 26

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

$628Icelandair

Mon, Nov 16 - Tue, Nov 24

6:00 am - 8:00 amPDX Portland-LIS Lisbon Humberto Delgado

18h 00m2 stops Salt Lake City New York John F Kennedy Intl

5:00 am - 7:03 pmLIS Lisbon Humberto Delgado-PDX Portland

22h 03m2 stops Amsterdam Schiphol Seattle/Tacoma Intl

$666KLM

Tue, Jan 5 - Fri, Jan 22

Cheap last minute flights

Enter your travel dates to find the best prices.

11:35 am - 2:55 pmPDX Portland-LIS Lisbon Humberto Delgado

19h 20m2 stops Minneapolis St Paul Paris Charles de Gaulle

10:00 am - 9:03 pmLIS Lisbon Humberto Delgado-PDX Portland

19h 03m1 stop New York John F Kennedy Intl

$999Delta

Tue, Sep 15 - Tue, Sep 22

7:10 am - 11:15 amPDX Portland-LIS Lisbon Humberto Delgado

20h 05m2 stops New York John F Kennedy Intl Paris Charles de Gaulle

10:00 am - 9:03 pmLIS Lisbon Humberto Delgado-PDX Portland

19h 03m1 stop New York John F Kennedy Intl

$999Delta

Tue, Sep 15 - Wed, Sep 23

9:30 pm - 6:45 amPDX Portland-PDL Ponta Delgada Nordela

26h 15m1 stop New York John F Kennedy Intl

5:30 pm - 12:59 pmPDL Ponta Delgada Nordela-PDX Portland

26h 29m1 stop New York John F Kennedy Intl

$1,023Multiple Airlines

Sat, Sep 12 - Fri, Sep 25

9:30 pm - 6:45 amPDX Portland-PDL Ponta Delgada Nordela

26h 15m1 stop New York John F Kennedy Intl

5:30 pm - 12:59 pmPDL Ponta Delgada Nordela-PDX Portland

26h 29m1 stop New York John F Kennedy Intl

$1,023Multiple Airlines

Sun, Sep 13 - Fri, Sep 25

7:45 pm - 7:00 amPDX Portland-OPO Porto

27h 15m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

12:15 pm - 7:18 pmOPO Porto-PDX Portland

39h 03m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$1,068Air Canada

Tue, Sep 15 - Tue, Sep 22

10:56 am - 9:45 amPDX Portland-OPO Porto

14h 49m1 stop Newark

12:15 pm - 10:53 pmOPO Porto-PDX Portland

42h 38m3 stops Montreal Pierre Elliott Trudeau Intl Newark Denver Intl

$1,069United Airlines

Mon, Sep 14 - Tue, Sep 22

11:18 pm - 6:55 amPDX Portland-OPO Porto

23h 37m1 stop Newark

12:15 pm - 3:05 pmOPO Porto-PDX Portland

34h 50m2 stops Montreal Pierre Elliott Trudeau Intl Denver Intl

$1,069United Airlines

Tue, Sep 15 - Tue, Sep 22

7:15 pm - 7:00 amPDX Portland-OPO Porto

27h 45m2 stops San Francisco Montreal Pierre Elliott Trudeau Intl

8:40 am - 9:31 amOPO Porto-PDX Portland

32h 51m2 stops Zurich Vancouver Intl

$1,072Air Canada

Mon, Sep 14 - Tue, Sep 22

1:05 pm - 10:40 amPDX Portland-OPO Porto

13h 35m1 stop Amsterdam Schiphol

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

14h 10m1 stop Amsterdam Schiphol

$1,076KLM

Mon, Sep 14 - Tue, Sep 22

1:05 pm - 10:40 amPDX Portland-OPO Porto

13h 35m1 stop Amsterdam Schiphol

7:00 pm - 11:10 amOPO Porto-PDX Portland

24h 10m1 stop Amsterdam Schiphol

$1,077KLM

Mon, Sep 14 - Tue, Sep 22

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

Lufthansa flights from Portland to Portugal

Our best Lufthansa deals on Portland to Portugal flight tickets

Lufthansa

Nov 8

PDX10:00 amPortland

40h 40m

2 stops

LIS10:40 amLisbon Humberto Delgado

Nov 18

LIS5:00 amLisbon Humberto Delgado

22h 12m

2 stops

PDX7:12 pmPortland

$740

Lufthansa

Oct 17

PDX10:10 amPortland

60h 40m

2 stops

OPO6:50 amPorto

Nov 4

OPO1:45 pmPorto

40h 42m

2 stops

PDX10:27 pmPortland

$763

Lufthansa

Oct 17

PDX10:10 amPortland

60h 40m

2 stops

OPO6:50 amPorto

Nov 5

OPO12:35 pmPorto

38h 37m

2 stops

PDX7:12 pmPortland

$771

Delta flights from Portland to Portugal

Our best Delta deals on Portland to Portugal flight tickets

Delta

Nov 2

PDX7:00 amPortland

17h 00m

1 stop

LIS8:00 amLisbon Humberto Delgado

Nov 10

LIS11:30 amLisbon Humberto Delgado

32h 10m

1 stop

PDX11:40 amPortland

$617

Delta

Nov 2

PDX10:15 pmPortland

26h 45m

2 stops

LIS9:00 amLisbon Humberto Delgado

Nov 11

LIS11:15 amLisbon Humberto Delgado

18h 42m

2 stops

PDX9:57 pmPortland

$620

Delta

Oct 31

PDX11:05 pmPortland

25h 55m

1 stop

LIS8:00 amLisbon Humberto Delgado

Nov 13

LIS10:00 amLisbon Humberto Delgado

20h 00m

1 stop

PDX10:00 pmPortland

$622

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Sun 11/8

5:45 pm-9:45 pm

1 stop20h 00m

Lisbon Humberto Delgado

Wed 11/18

8:20 am-7:47 pm

2 stops19h 27m

$603

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Wed 11/11

5:45 pm-9:55 pm

1 stop20h 10m

Lisbon Humberto Delgado

Mon 11/16

8:45 pm-11:07 am

2 stops22h 22m

$603

Quickest round-trip

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Sun 11/8

5:45 pm-5:45 pm

1 stop16h 00m

Lisbon Humberto Delgado

Wed 11/18

11:05 am-9:59 pm

1 stop18h 54m

$609

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Wed 10/28

6:45 pm-5:45 pm

1 stop16h 00m

Lisbon Humberto Delgado

Fri 11/6

11:05 am-9:59 pm

1 stop18h 54m

$609

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Tue 11/10

7:10 am-8:00 am

1 stop16h 50m

Lisbon Humberto Delgado

Wed 11/18

10:00 am-10:00 pm

1 stop20h 00m

$616

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Mon 11/2

7:00 am-8:00 am

1 stop17h 00m

Lisbon Humberto Delgado

Tue 11/10

11:30 am-11:40 am

1 stop32h 10m

$617

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Tue 11/3

7:00 am-9:00 am

2 stops18h 00m

Lisbon Humberto Delgado

Fri 11/13

10:55 am-10:07 pm

2 stops19h 12m

$620

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Mon 11/16

2:45 pm-12:50 pm

1 stop14h 05m

Lisbon Humberto Delgado

Thu 11/26

2:00 pm-5:00 pm

1 stop35h 00m

$620

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Mon 11/16

2:45 pm-12:50 pm

1 stop14h 05m

Lisbon Humberto Delgado

Tue 11/24

2:00 pm-5:00 pm

1 stop35h 00m

$628

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Tue 1/5

6:00 am-8:00 am

2 stops18h 00m

Lisbon Humberto Delgado

Fri 1/22

5:00 am-7:03 pm

2 stops22h 03m

$666

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 $612, 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 $646.

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

Best Price Found	$278
Fastest flight time	14h 49m
Direct flights	None

The best one-way flight to Portugal from Portland in the past 72 hours is $278. The best round-trip flight deal from Portland to Portugal found on momondo in the last 72 hours is $603.

The fastest flight from Portland to Portugal takes 14h 49m

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 6.9 741 reviews	Search Icelandair flights
KLM	PriceFrom $492	Free Cancellation	Rating 7.8 1,576 reviews	Search KLM flights
Delta	PriceFrom $492	Free Cancellation	Rating 7.8 8,553 reviews	Search Delta flights
Lufthansa	PriceFrom $501	Free Cancellation	Rating 6.8 8,216 reviews	Search Lufthansa flights
United Airlines	PriceFrom $502	Free Cancellation	Rating 7.4 10,192 reviews	Search United Airlines flights
British Airways	PriceFrom $509	Free Cancellation	Rating 6.7 8,209 reviews	Search British Airways flights
Air Canada	PriceFrom $576	Free Cancellation	Rating 7.1 11,608 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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Fri 10/9

Fri 10/16

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

Popular cities

Other flights from Portland

Other flights to Portugal

Airlines

Cabin classes

Complete your trip

Feeling lucky

Popular cities in Portugal

Flights to Lisbonfrom $396

Flights to Portofrom $539

Flights to Funchalfrom $589

Flights to Farofrom $576

Flights to Ponta Delgadafrom $565

Flights to Lajesfrom $567

Flights to Hortafrom $586

Flights to Pico Islandfrom $588

Flights to Porto Santofrom $804

Flights to Velasfrom $591

Cheap flights from Portland to Portugal from $278

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 10/27. 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

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Lufthansa flights from Portland to Portugal

Our best Lufthansa deals on Portland to Portugal flight tickets

Delta flights from Portland to Portugal

Our best Delta 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