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 39% 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?

Icelandair, Virgin Atlantic, 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 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.

$281 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

$695Icelandair

Mon, Nov 2 - Tue, Nov 24

10:00 am - 9:20 amPDX Portland-LIS Lisbon Humberto Delgado

16h 20m2 stops Vancouver Intl Toronto Pearson Intl

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

21h 31m2 stops Frankfurt am Main Vancouver Intl

$709Multiple Airlines

Mon, Oct 26 - Thu, Nov 5

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

16h 40m2 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

$711Multiple Airlines

Mon, Nov 2 - Tue, Nov 24

8:45 am - 12:50 pmPDX Portland-OPO Porto

20h 05m2 stops Denver Intl Munich Franz Josef Strauss

6:00 am - 11:12 pmOPO Porto-PDX Portland

25h 12m2 stops Frankfurt am Main Chicago O'Hare Intl

$726Lufthansa

Mon, Dec 7 - Fri, Dec 11

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

$726Icelandair

Mon, Oct 26 - Thu, Nov 5

7:00 am - 9:05 amPDX Portland-OPO Porto

18h 05m1 stop New York John F Kennedy Intl

11:15 am - 11:20 amOPO Porto-PDX Portland

32h 05m1 stop Amsterdam Schiphol

$733Delta

Wed, Nov 4 - Thu, Nov 12

7:00 am - 9:05 amPDX Portland-OPO Porto

18h 05m1 stop New York John F Kennedy Intl

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

14h 20m1 stop Amsterdam Schiphol

$733Delta

Wed, Nov 4 - Wed, Nov 11

5:45 pm - 5:40 pmPDX Portland-LIS Lisbon Humberto Delgado

15h 55m1 stop London Heathrow

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

18h 54m1 stop Philadelphia

$736British Airways

Wed, Nov 4 - Wed, Nov 11

6:45 pm - 5:40 pmPDX Portland-LIS Lisbon Humberto Delgado

15h 55m1 stop London Heathrow

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

18h 54m1 stop Philadelphia

$736British Airways

Wed, Oct 28 - Wed, Nov 11

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

40h 40m2 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

$741Lufthansa

Sun, Nov 8 - Wed, Nov 18

Cheap last minute flights

Enter your travel dates to find the best prices.

12:50 pm - 3:35 pmPDX Portland-LIS Lisbon Humberto Delgado

18h 45m2 stops Philadelphia London Heathrow

11:05 am - 7:34 pmLIS Lisbon Humberto Delgado-PDX Portland

16h 29m1 stop Philadelphia

$1,064Multiple Airlines

Tue, Aug 11 - Fri, Aug 21

7:17 am - 9:05 amPDX Portland-LIS Lisbon Humberto Delgado

17h 48m1 stop Philadelphia

11:05 am - 7:34 pmLIS Lisbon Humberto Delgado-PDX Portland

16h 29m1 stop Philadelphia

$1,067Multiple Airlines

Tue, Aug 11 - Fri, Aug 21

6:27 am - 3:35 pmPDX Portland-LIS Lisbon Humberto Delgado

25h 08m2 stops Dallas/Fort Worth London Heathrow

7:20 am - 11:59 pmLIS Lisbon Humberto Delgado-PDX Portland

24h 39m2 stops London Heathrow Chicago O'Hare Intl

$1,159British Airways

Tue, Aug 11 - Wed, Aug 19

5:18 am - 3:35 pmPDX Portland-LIS Lisbon Humberto Delgado

26h 17m2 stops Dallas/Fort Worth London Heathrow

6:45 pm - 6:05 pmLIS Lisbon Humberto Delgado-PDX Portland

31h 20m2 stops London Heathrow Chicago O'Hare Intl

$1,159British Airways

Tue, Aug 11 - Wed, Aug 19

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

17h 00m1 stop New York John F Kennedy Intl

12:15 pm - 11:41 amLIS Lisbon Humberto Delgado-PDX Portland

31h 26m2 stops Paris Charles de Gaulle New York John F Kennedy Intl

$1,452Delta

Tue, Aug 11 - Tue, Aug 18

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

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

7:25 am - 7:11 pmLIS Lisbon Humberto Delgado-PDX Portland

19h 46m2 stops Frankfurt am Main Vancouver Intl

$1,519Air Canada

Sat, Aug 8 - Thu, Aug 20

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

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

7:25 am - 7:11 pmLIS Lisbon Humberto Delgado-PDX Portland

19h 46m2 stops Frankfurt am Main Vancouver Intl

$1,519Air Canada

Sat, Aug 8 - Fri, Aug 21

11:29 pm - 10:30 amPDX Portland-LIS Lisbon Humberto Delgado

27h 01m1 stop Washington, D.C. Dulles Intl

12:20 pm - 8:10 pmLIS Lisbon Humberto Delgado-PDX Portland

15h 50m1 stop Washington, D.C. Dulles Intl

$1,558United Airlines

Sat, Aug 8 - Fri, Aug 21

11:29 pm - 10:30 amPDX Portland-LIS Lisbon Humberto Delgado

27h 01m1 stop Washington, D.C. Dulles Intl

12:20 pm - 8:10 pmLIS Lisbon Humberto Delgado-PDX Portland

15h 50m1 stop Washington, D.C. Dulles Intl

$1,558United Airlines

Sat, Aug 8 - Wed, Aug 19

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

$1,633Delta

Sun, Aug 9 - Fri, Aug 21

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United Airlines flights from Portland to Portugal

Our best United Airlines deals on Portland to Portugal flight tickets

United Airlines

Oct 28

PDX8:30 amPortland

18h 50m

1 stop

LIS10:20 amLisbon Humberto Delgado

Nov 6

LIS11:20 amLisbon Humberto Delgado

42h 38m

2 stops

PDX9:58 pmPortland

$746

United Airlines

Oct 20

PDX10:58 amPortland

13h 22m

1 stop

LIS8:20 amLisbon Humberto Delgado

Nov 10

LIS11:20 amLisbon Humberto Delgado

32h 27m

2 stops

PDX11:47 amPortland

$751

United Airlines

Dec 7

PDX8:46 amPortland

16h 44m

2 stops

OPO9:30 amPorto

Dec 11

OPO12:35 pmPorto

29h 42m

2 stops

PDX10:17 amPortland

$755

Air Canada flights from Portland to Portugal

Our best Air Canada deals on Portland to Portugal flight tickets

Air Canada

Nov 22

PDX3:15 pmPortland

35h 25m

2 stops

LIS10:40 amLisbon Humberto Delgado

Dec 4

LIS5:00 amLisbon Humberto Delgado

21h 31m

2 stops

PDX6:31 pmPortland

$742

Air Canada

Oct 20

PDX7:45 pmPortland

29h 35m

2 stops

LIS9:20 amLisbon Humberto Delgado

Nov 10

LIS5:00 amLisbon Humberto Delgado

21h 31m

2 stops

PDX6:31 pmPortland

$743

Air Canada

Oct 25

PDX7:10 pmPortland

32h 30m

2 stops

LIS10:40 amLisbon Humberto Delgado

Nov 3

LIS12:50 pmLisbon Humberto Delgado

38h 22m

2 stops

PDX7:12 pmPortland

$745

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Mon 11/2

2:45 pm-12:50 pm

1 stop14h 05m

Lisbon Humberto Delgado

Tue 11/24

2:00 pm-5:00 pm

1 stop35h 00m

$695

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Mon 10/26

10:00 am-9:20 am

2 stops16h 20m

Lisbon Humberto Delgado

Thu 11/5

5:00 am-6:31 pm

2 stops21h 31m

$709

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Mon 11/2

10:00 am-10:40 am

2 stops16h 40m

Lisbon Humberto Delgado

Tue 11/24

5:00 am-6:31 pm

2 stops21h 31m

$711

PortlandPorto

PDX Portland - OPO Porto

PDXOPO

Portland

Mon 12/7

8:45 am-12:50 pm

2 stops20h 05m

Porto

Fri 12/11

6:00 am-11:12 pm

2 stops25h 12m

$726

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Mon 10/26

3:45 pm-12:50 pm

1 stop14h 05m

Lisbon Humberto Delgado

Thu 11/5

2:00 pm-5:00 pm

1 stop35h 00m

$726

PortlandPorto

PDX Portland - OPO Porto

PDXOPO

Portland

Wed 11/4

7:00 am-9:05 am

1 stop18h 05m

Porto

Thu 11/12

11:15 am-11:20 am

1 stop32h 05m

$733

Quickest round-trip

PortlandPorto

PDX Portland - OPO Porto

PDXOPO

Portland

Wed 11/4

7:00 am-9:05 am

1 stop18h 05m

Porto

Wed 11/11

5:00 am-11:20 am

1 stop14h 20m

$733

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Wed 11/4

5:45 pm-5:40 pm

1 stop15h 55m

Lisbon Humberto Delgado

Wed 11/11

11:05 am-9:59 pm

1 stop18h 54m

$736

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Wed 10/28

6:45 pm-5:40 pm

1 stop15h 55m

Lisbon Humberto Delgado

Wed 11/11

11:05 am-9:59 pm

1 stop18h 54m

$736

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

5:00 am-7:12 pm

2 stops22h 12m

$741

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 $647.

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 $869 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 13% 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 05m
Direct flights	None

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 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 7.0 721 reviews	Search Icelandair flights
KLM	PriceFrom $492	Free Cancellation	Rating 7.8 1,555 reviews	Search KLM flights
Delta	PriceFrom $492	Free Cancellation	Rating 7.8 8,496 reviews	Search Delta flights
Lufthansa	PriceFrom $501	Free Cancellation	Rating 6.8 8,178 reviews	Search Lufthansa flights
United Airlines	PriceFrom $502	Free Cancellation	Rating 7.4 10,075 reviews	Search United Airlines flights
British Airways	PriceFrom $509	Free Cancellation	Rating 6.7 8,150 reviews	Search British Airways flights
Air Canada	PriceFrom $576	Free Cancellation	Rating 7.1 11,433 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 $552

Flights to Portofrom $530

Flights to Funchalfrom $622

Flights to Farofrom $612

Flights to Ponta Delgadafrom $574

Flights to Lajesfrom $604

Flights to Hortafrom $659

Flights to Pico Islandfrom $725

Flights to Porto Santofrom $710

Flights to Velasfrom $695

Cheap flights from Portland to Portugal from $281

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 10/29. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Portland to Portugal

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United Airlines flights from Portland to Portugal

Our best United Airlines 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

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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