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, Delta, and KLM 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.

$327 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.

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

$698Icelandair

Sat, Nov 7 - Sun, Nov 15

7:00 am - 9:20 amPDX Portland-LIS Lisbon Humberto Delgado

18h 20m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

5:00 am - 6:31 pmLIS Lisbon Humberto Delgado-PDX Portland

21h 31m2 stops Frankfurt am Main Vancouver Intl

$726Multiple Airlines

Wed, Feb 10 - Wed, Feb 24

7:00 am - 10:25 amPDX Portland-OPO Porto

19h 25m1 stop New York John F Kennedy Intl

11:15 am - 11:40 amOPO Porto-PDX Portland

32h 25m1 stop Amsterdam Schiphol

$734Delta

Sun, Oct 18 - Tue, Nov 3

7:10 am - 10:25 amPDX Portland-OPO Porto

19h 15m2 stops Seattle/Tacoma Intl New York John F Kennedy Intl

11:15 am - 11:40 amOPO Porto-PDX Portland

32h 25m1 stop Amsterdam Schiphol

$734Delta

Sun, Oct 18 - Tue, Nov 3

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

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

11:20 am - 6:31 pmLIS Lisbon Humberto Delgado-PDX Portland

39h 11m2 stops Toronto Pearson Intl Vancouver Intl

$736Air Canada

Mon, Oct 19 - Wed, Nov 4

10:00 am - 6:55 amPDX Portland-LIS Lisbon Humberto Delgado

36h 55m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

5:00 am - 7:12 pmLIS Lisbon Humberto Delgado-PDX Portland

22h 12m2 stops Frankfurt am Main Chicago O'Hare Intl

$740Lufthansa

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

5:00 am - 11:40 amLIS Lisbon Humberto Delgado-PDX Portland

14h 40m1 stop Amsterdam Schiphol

$742Multiple Airlines

Mon, Oct 19 - Wed, Nov 4

7:10 pm - 10:40 amPDX Portland-LIS Lisbon Humberto Delgado

31h 30m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

5:00 am - 8:46 pmLIS Lisbon Humberto Delgado-PDX Portland

23h 46m2 stops Frankfurt am Main Vancouver Intl

$743Air Canada

Sun, Nov 22 - Fri, Dec 4

11:10 pm - 8:10 amPDX Portland-LIS Lisbon Humberto Delgado

25h 00m1 stop Newark

5:00 am - 2:41 pmLIS Lisbon Humberto Delgado-PDX Portland

17h 41m2 stops Frankfurt am Main Vancouver Intl

$805Lufthansa

Sun, Nov 22 - Fri, Dec 4

3:45 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

$820Icelandair

Sat, Oct 31 - Sun, Nov 8

Cheap last minute flights

Enter your travel dates to find the best prices.

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

14h 49m1 stop Newark

12:15 pm - 5:49 pmOPO Porto-PDX Portland

37h 34m2 stops Montreal Pierre Elliott Trudeau Intl Denver Intl

$1,139United Airlines

Thu, Sep 10 - 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

$1,139United Airlines

Thu, Sep 10 - Tue, Sep 22

11:09 pm - 6:50 amPDX Portland-OPO Porto

23h 41m1 stop Newark

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

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

$1,139United Airlines

Thu, Sep 10 - Tue, Sep 22

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

$1,146Delta

Thu, Sep 10 - Tue, Sep 22

1:05 pm - 6:45 pmPDX Portland-LIS Lisbon Humberto Delgado

21h 40m1 stop Amsterdam Schiphol

5:00 am - 11:10 amLIS Lisbon Humberto Delgado-PDX Portland

14h 10m1 stop Amsterdam Schiphol

$1,148KLM

Wed, Sep 9 - Wed, Sep 30

1:05 pm - 2:35 pmPDX Portland-LIS Lisbon Humberto Delgado

17h 30m1 stop Amsterdam Schiphol

5:00 am - 11:10 amLIS Lisbon Humberto Delgado-PDX Portland

14h 10m1 stop Amsterdam Schiphol

$1,148KLM

Tue, Sep 8 - Wed, Sep 16

1:05 pm - 6:45 pmPDX Portland-LIS Lisbon Humberto Delgado

21h 40m1 stop Amsterdam Schiphol

5:00 am - 11:10 amLIS Lisbon Humberto Delgado-PDX Portland

14h 10m1 stop Amsterdam Schiphol

$1,148Delta

Tue, Sep 8 - Wed, Sep 16

1:42 pm - 2:55 pmPDX Portland-LIS Lisbon Humberto Delgado

17h 13m2 stops Minneapolis St Paul Paris Charles de Gaulle

5:00 am - 11:10 amLIS Lisbon Humberto Delgado-PDX Portland

14h 10m1 stop Amsterdam Schiphol

$1,148Multiple Airlines

Tue, Sep 8 - Wed, Sep 16

11:20 am - 11:15 amPDX Portland-LIS Lisbon Humberto Delgado

15h 55m2 stops Seattle/Tacoma Intl Paris Charles de Gaulle

5:00 am - 11:10 amLIS Lisbon Humberto Delgado-PDX Portland

14h 10m1 stop Amsterdam Schiphol

$1,148Multiple Airlines

Tue, Sep 8 - Wed, Sep 30

11:09 pm - 6:50 amPDX Portland-OPO Porto

23h 41m1 stop Newark

12:35 pm - 10:03 pmOPO Porto-PDX Portland

17h 28m1 stop Newark

$1,209Lufthansa

Thu, Sep 10 - Tue, Sep 22

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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 19

PDX7:45 pmPortland

29h 35m

2 stops

LIS9:20 amLisbon Humberto Delgado

Nov 4

LIS11:20 amLisbon Humberto Delgado

39h 11m

2 stops

PDX6:31 pmPortland

$736

Air Canada

Nov 22

PDX7:10 pmPortland

31h 30m

2 stops

LIS10:40 amLisbon Humberto Delgado

Dec 4

LIS5:00 amLisbon Humberto Delgado

23h 46m

2 stops

PDX8:46 pmPortland

$743

Air Canada

Oct 25

PDX7:15 pmPortland

32h 25m

2 stops

LIS10:40 amLisbon Humberto Delgado

Nov 3

LIS6:05 amLisbon Humberto Delgado

22h 41m

2 stops

PDX8:46 pmPortland

$745

Lufthansa flights from Portland to Portugal

Our best Lufthansa deals on Portland to Portugal flight tickets

Lufthansa

Nov 10

PDX10:00 amPortland

36h 55m

2 stops

LIS6:55 amLisbon Humberto Delgado

Nov 18

LIS5:00 amLisbon Humberto Delgado

22h 12m

2 stops

PDX7:12 pmPortland

$740

Lufthansa

Nov 22

PDX11:10 pmPortland

25h 00m

1 stop

LIS8:10 amLisbon Humberto Delgado

Dec 4

LIS5:00 amLisbon Humberto Delgado

17h 41m

2 stops

PDX2:41 pmPortland

$805

Lufthansa

Oct 16

PDX10:10 amPortland

36h 40m

2 stops

OPO6:50 amPorto

Oct 24

OPO11:20 amPorto

39h 11m

2 stops

PDX6:31 pmPortland

$900

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Sat 11/7

2:45 pm-12:50 pm

1 stop14h 05m

Lisbon Humberto Delgado

Sun 11/15

2:00 pm-5:00 pm

1 stop35h 00m

$698

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Wed 2/10

7:00 am-9:20 am

2 stops18h 20m

Lisbon Humberto Delgado

Wed 2/24

5:00 am-6:31 pm

2 stops21h 31m

$726

PortlandPorto

PDX Portland - OPO Porto

PDXOPO

Portland

Sun 10/18

7:00 am-10:25 am

1 stop19h 25m

Porto

Tue 11/3

11:15 am-11:40 am

1 stop32h 25m

$734

PortlandPorto

PDX Portland - OPO Porto

PDXOPO

Portland

Sun 10/18

7:10 am-10:25 am

2 stops19h 15m

Porto

Tue 11/3

11:15 am-11:40 am

1 stop32h 25m

$734

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Mon 10/19

7:45 pm-9:20 am

2 stops29h 35m

Lisbon Humberto Delgado

Wed 11/4

11:20 am-6:31 pm

2 stops39h 11m

$736

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Tue 11/10

10:00 am-6:55 am

2 stops36h 55m

Lisbon Humberto Delgado

Wed 11/18

5:00 am-7:12 pm

2 stops22h 12m

$740

Quickest round-trip

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Mon 10/19

7:00 am-8:00 am

1 stop17h 00m

Lisbon Humberto Delgado

Wed 11/4

5:00 am-11:40 am

1 stop14h 40m

$742

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Sun 11/22

7:10 pm-10:40 am

2 stops31h 30m

Lisbon Humberto Delgado

Fri 12/4

5:00 am-8:46 pm

2 stops23h 46m

$743

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Sun 11/22

11:10 pm-8:10 am

1 stop25h 00m

Lisbon Humberto Delgado

Fri 12/4

5:00 am-2:41 pm

2 stops17h 41m

$805

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Sat 10/31

3:45 pm-12:50 pm

1 stop14h 05m

Lisbon Humberto Delgado

Sun 11/8

2:00 pm-5:00 pm

1 stop35h 00m

$820

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 $645.

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 $873 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	$327
Fastest flight time	14h 05m
Direct flights	None

The best one-way flight to Portugal from Portland in the past 72 hours is $327. The best round-trip flight deal from Portland to Portugal found on momondo in the last 72 hours is $698.

The fastest flight from Portland to Portugal takes 14h 05m

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 7.4 696 reviews	Search Virgin Atlantic flights
Icelandair	PriceFrom $360	Free Cancellation	Rating 6.9 740 reviews	Search Icelandair flights
KLM	PriceFrom $492	Free Cancellation	Rating 7.8 1,571 reviews	Search KLM flights
Delta	PriceFrom $494	Free Cancellation	Rating 7.8 8,568 reviews	Search Delta flights
Lufthansa	PriceFrom $501	Free Cancellation	Rating 6.8 8,223 reviews	Search Lufthansa flights
United Airlines	PriceFrom $502	Free Cancellation	Rating 7.4 10,173 reviews	Search United Airlines flights
British Airways	PriceFrom $509	Free Cancellation	Rating 6.7 8,206 reviews	Search British Airways flights
Air Canada	PriceFrom $576	Free Cancellation	Rating 7.1 11,582 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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Airlines

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Complete your trip

Feeling lucky

Popular cities in Portugal

Flights to Lisbonfrom $509

Flights to Portofrom $539

Flights to Funchalfrom $554

Flights to Farofrom $574

Flights to Ponta Delgadafrom $566

Flights to Lajesfrom $578

Flights to Hortafrom $591

Flights to Pico Islandfrom $561

Flights to Porto Santofrom $881

Flights to Velasfrom $692

Cheap flights from Portland to Portugal from $327

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 10/16. 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

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Cheap last minute flights

Big names and deals

Big names and deals

Filter for what you want

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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

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