What airlines fly to Portugal?

British Airways, Delta and KLM 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 42% of people opting to fly with this airline when traveling to Portugal. Keep in mind that there are 7 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?

American Airlines, British Airways, and Lufthansa 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 May 2026, there are 7 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.

$340 Cheap Flights from Portland to Portugal in 2026

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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.

7:45 am - 11:45 am

PDX

OPO

21h 00m

2 stops

8:20 am - 11:51 pm

OPO

PDX

23h 31m

2 stops

$755American Airlines

Tue, Oct 27 - Tue, Nov 3

10:10 am - 7:00 am

PDX

OPO

36h 50m

2 stops

6:00 am - 2:41 pm

OPO

PDX

16h 41m

2 stops

$782Multiple Airlines

Sun, Oct 18 - Wed, Nov 11

11:55 am - 7:30 pm

PDX

OPO

23h 35m

2 stops

8:20 am - 10:59 pm

OPO

PDX

22h 39m

2 stops

$785British Airways

Tue, Oct 13 - Tue, Oct 20

10:10 am - 7:00 am

PDX

OPO

36h 50m

2 stops

6:00 am - 6:31 pm

OPO

PDX

20h 31m

2 stops

$790Air Canada

Mon, Oct 19 - Wed, Nov 11

7:02 am - 7:00 am

PDX

OPO

15h 58m

2 stops

6:00 am - 2:41 pm

OPO

PDX

16h 41m

2 stops

$795Air Canada

Wed, Oct 21 - Wed, Nov 11

11:55 am - 7:30 pm

PDX

OPO

23h 35m

2 stops

8:40 pm - 9:57 pm

OPO

PDX

32h 17m

2 stops

$796British Airways

Tue, Oct 13 - Mon, Oct 26

10:56 am - 9:45 am

PDX

OPO

14h 49m

1 stop

6:00 am - 9:21 pm

OPO

PDX

23h 21m

2 stops

$802United Airlines

Sun, Oct 18 - Fri, Nov 13

10:59 pm - 9:30 am

PDX

OPO

26h 31m

2 stops

6:00 am - 12:02 am

OPO

PDX

26h 02m

2 stops

$806United Airlines

Sat, Nov 7 - Tue, Nov 17

7:00 am - 8:00 am

PDX

LIS

17h 00m

1 stop

7:45 pm - 11:10 am

LIS

PDX

23h 25m

1 stop

$938KLM

Tue, Aug 11 - Tue, Aug 18

1:05 pm - 7:40 am

PDX

FAO

34h 35m

1 stop

8:20 pm - 11:10 am

FAO

PDX

22h 50m

1 stop

$971KLM

Tue, Sep 15 - Wed, Oct 21

British Airways flights from Portland to Portugal

Our best British Airways deals on Portland to Portugal flight tickets

British Airways

Oct 13

PDX7:30 pmPortland

16h 00m

1 stop

OPO7:30 pmPorto

Oct 29

OPO8:20 amPorto

21h 53m

2 stops

PDX11:13 pmPortland

$779

British Airways

Oct 13

PDX1:30 pmPortland

22h 00m

2 stops

OPO7:30 pmPorto

Oct 29

OPO8:20 amPorto

21h 39m

2 stops

PDX10:59 pmPortland

$784

British Airways

Oct 13

PDX11:55 amPortland

23h 35m

2 stops

OPO7:30 pmPorto

Oct 20

OPO8:20 amPorto

22h 39m

2 stops

PDX10:59 pmPortland

$785

Air Canada flights from Portland to Portugal

Our best Air Canada deals on Portland to Portugal flight tickets

Air Canada

Oct 19

PDX10:10 amPortland

36h 50m

2 stops

OPO7:00 amPorto

Nov 11

OPO6:00 amPorto

20h 31m

2 stops

PDX6:31 pmPortland

$790

Air Canada

Oct 21

PDX7:02 amPortland

15h 58m

2 stops

OPO7:00 amPorto

Nov 11

OPO6:00 amPorto

16h 41m

2 stops

PDX2:41 pmPortland

$795

Air Canada

Sep 20

PDX7:45 pmPortland

27h 15m

2 stops

OPO7:00 amPorto

Oct 6

OPO12:15 pmPorto

42h 08m

2 stops

PDX10:23 pmPortland

$850

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandPorto

PDX - OPO

PDXOPO

Portland

Tue 10/27

7:45 am-11:45 am

2 stops21h 00m

Porto

Tue 11/3

8:20 am-11:51 pm

2 stops23h 31m

$755

PortlandPorto

PDX - OPO

PDXOPO

Portland

Sun 10/18

10:10 am-7:00 am

2 stops36h 50m

Porto

Wed 11/11

6:00 am-2:41 pm

2 stops16h 41m

$782

PortlandPorto

PDX - OPO

PDXOPO

Portland

Tue 10/13

11:55 am-7:30 pm

2 stops23h 35m

Porto

Tue 10/20

8:20 am-10:59 pm

2 stops22h 39m

$785

PortlandPorto

PDX - OPO

PDXOPO

Portland

Mon 10/19

10:10 am-7:00 am

2 stops36h 50m

Porto

Wed 11/11

6:00 am-6:31 pm

2 stops20h 31m

$790

Quickest round-trip

PortlandPorto

PDX - OPO

PDXOPO

Portland

Wed 10/21

7:02 am-7:00 am

2 stops15h 58m

Porto

Wed 11/11

6:00 am-2:41 pm

2 stops16h 41m

$795

PortlandPorto

PDX - OPO

PDXOPO

Portland

Tue 10/13

11:55 am-7:30 pm

2 stops23h 35m

Porto

Mon 10/26

8:40 pm-9:57 pm

2 stops32h 17m

$796

PortlandPorto

PDX - OPO

PDXOPO

Portland

Sun 10/18

10:56 am-9:45 am

1 stop14h 49m

Porto

Fri 11/13

6:00 am-9:21 pm

2 stops23h 21m

$802

PortlandPorto

PDX - OPO

PDXOPO

Portland

Sat 11/7

10:59 pm-9:30 am

2 stops26h 31m

Porto

Tue 11/17

6:00 am-12:02 am

2 stops26h 02m

$806

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Tue 8/11

7:00 am-8:00 am

1 stop17h 00m

Lisbon Humberto Delgado

Tue 8/18

7:45 pm-11:10 am

1 stop23h 25m

$938

PortlandFaro

PDX - FAO

PDXFAO

Portland

Tue 9/15

1:05 pm-7:40 am

1 stop34h 35m

Faro

Wed 10/21

8:20 pm-11:10 am

1 stop22h 50m

$971

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 March. Flight prices, which tend to average around $360, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of March, then book flights to Portugal from Portland during November instead. Flights to Portugal in November, while not as cheap as those in March, still average around $364.

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 $829 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 $704 on momondo.

Can stopping save me money on Portland to Portugal flights?

You could potentially save up to 9% 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	13h 47m
Direct flights	None

The fastest flight from Portland to Portugal takes 13h 47m

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 May 2026, there are 7 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
Icelandair	PriceFrom $360	Free Cancellation	Rating 7.0 656 reviews	Search Icelandair flights
KLM	PriceFrom $492	Free Cancellation	Rating 7.8 1,518 reviews	Search KLM flights
Delta	PriceFrom $494	Free Cancellation	Rating 7.9 8,452 reviews	Search Delta flights
Lufthansa	PriceFrom $501	Free Cancellation	Rating 6.8 8,015 reviews	Search Lufthansa flights
United Airlines	PriceFrom $502	Free Cancellation	Rating 7.4 9,738 reviews	Search United Airlines flights
British Airways	PriceFrom $510	Free Cancellation	Rating 6.7 7,988 reviews	Search British Airways flights
Air Canada	PriceFrom $577	Free Cancellation	Rating 7.1 11,065 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

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Complete your trip

Feeling lucky

Popular cities in Portugal

Flights to Lisbonfrom $468

Flights to Portofrom $448

Flights to Funchalfrom $649

Flights to Farofrom $621

Flights to Ponta Delgadafrom $592

Flights to Lajesfrom $639

Flights to Pico Islandfrom $674

Flights to Hortafrom $670

Flights to Porto Santofrom $702

Flights to Velasfrom $695

Cheap flights from Portland to Portugal from $340

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 5/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Filter for what you want

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British Airways flights from Portland to Portugal

Our best British Airways 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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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

Find info about flight duration, direct flights, and airports for your flight from Portland to Portugal

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