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 41% 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, WestJet, and Alaska Airlines 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.

$309 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.

3:43 pm - 11:25 pm

PDX

LIS

23h 42m

2 stops

5:55 am - 7:06 pm

LIS

PDX

21h 11m

2 stops

$691SWISS

Thu, Sep 17 - Thu, Sep 24

7:11 am - 11:40 am

PDX

OPO

21h 29m

2 stops

12:30 pm - 12:02 am

OPO

PDX

19h 32m

2 stops

$707Lufthansa

Tue, Oct 27 - Wed, Nov 4

1:00 pm - 4:55 pm

PDX

OPO

43h 55m

2 stops

5:45 pm - 9:27 pm

OPO

PDX

35h 42m

2 stops

$760Scandinavian Airlines

Wed, Nov 4 - Fri, Nov 13

11:55 am - 4:00 pm

PDX

OPO

20h 05m

2 stops

8:40 pm - 9:20 pm

OPO

PDX

32h 40m

2 stops

$766Iberia

Wed, Oct 21 - Wed, Nov 4

1:28 pm - 5:45 pm

PDX

OPO

21h 17m

2 stops

8:40 pm - 9:20 pm

OPO

PDX

32h 40m

2 stops

$767British Airways

Tue, Oct 27 - Wed, Nov 4

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

7:00 am - 8:00 am

PDX

LIS

17h 00m

1 stop

11:30 am - 11:20 am

LIS

PDX

31h 50m

1 stop

$790KLM

Tue, Oct 20 - Tue, Nov 10

10:00 am - 9:30 am

PDX

OPO

16h 30m

1 stop

6:00 am - 8:49 pm

OPO

PDX

22h 49m

2 stops

$802United Airlines

Sun, Oct 25 - Wed, Nov 4

4:29 pm - 9:30 am

PDX

OPO

34h 01m

2 stops

6:00 am - 10:38 pm

OPO

PDX

24h 38m

2 stops

$807United Airlines

Mon, Oct 26 - Thu, Nov 5

1:05 pm - 7:40 am

PDX

FAO

34h 35m

1 stop

8:20 pm - 11:10 am

FAO

PDX

22h 50m

1 stop

$972KLM

Tue, Sep 15 - Wed, Oct 21

American Airlines flights from Portland to Portugal

Our best American Airlines deals on Portland to Portugal flight tickets

American Airlines

Nov 1

PDX5:45 pmPortland

20h 00m

1 stop

LIS9:45 pmLisbon Humberto Delgado

Nov 24

LIS11:05 amLisbon Humberto Delgado

20h 46m

2 stops

PDX11:51 pmPortland

$833

American Airlines

Oct 24

PDX11:55 amPortland

21h 05m

2 stops

OPO5:00 pmPorto

Oct 29

OPO8:20 amPorto

21h 39m

2 stops

PDX10:59 pmPortland

$835

American Airlines

Oct 23

PDX1:30 pmPortland

18h 30m

2 stops

OPO4:00 pmPorto

Nov 2

OPO8:20 amPorto

23h 31m

2 stops

PDX11:51 pmPortland

$890

Iberia flights from Portland to Portugal

Our best Iberia deals on Portland to Portugal flight tickets

Iberia

Oct 21

PDX11:55 amPortland

20h 05m

2 stops

OPO4:00 pmPorto

Nov 4

OPO8:40 pmPorto

32h 40m

2 stops

PDX9:20 pmPortland

$766

Iberia

Oct 27

PDX7:45 amPortland

16h 55m

2 stops

LIS7:40 amLisbon Humberto Delgado

Nov 4

LIS6:30 amLisbon Humberto Delgado

22h 50m

2 stops

PDX9:20 pmPortland

$811

Iberia

Oct 5

PDX7:30 pmPortland

28h 10m

2 stops

OPO7:40 amPorto

Oct 14

OPO12:25 pmPorto

41h 32m

2 stops

PDX9:57 pmPortland

$819

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Thu 9/17

3:43 pm-11:25 pm

2 stops23h 42m

Lisbon Humberto Delgado

Thu 9/24

5:55 am-7:06 pm

2 stops21h 11m

$691

PortlandPorto

PDX - OPO

PDXOPO

Portland

Tue 10/27

7:11 am-11:40 am

2 stops21h 29m

Porto

Wed 11/4

12:30 pm-12:02 am

2 stops19h 32m

$707

PortlandPorto

PDX - OPO

PDXOPO

Portland

Wed 11/4

1:00 pm-4:55 pm

2 stops43h 55m

Porto

Fri 11/13

5:45 pm-9:27 pm

2 stops35h 42m

$760

PortlandPorto

PDX - OPO

PDXOPO

Portland

Wed 10/21

11:55 am-4:00 pm

2 stops20h 05m

Porto

Wed 11/4

8:40 pm-9:20 pm

2 stops32h 40m

$766

PortlandPorto

PDX - OPO

PDXOPO

Portland

Tue 10/27

1:28 pm-5:45 pm

2 stops21h 17m

Porto

Wed 11/4

8:40 pm-9:20 pm

2 stops32h 40m

$767

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

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Tue 10/20

7:00 am-8:00 am

1 stop17h 00m

Lisbon Humberto Delgado

Tue 11/10

11:30 am-11:20 am

1 stop31h 50m

$790

Quickest round-trip

PortlandPorto

PDX - OPO

PDXOPO

Portland

Sun 10/25

10:00 am-9:30 am

1 stop16h 30m

Porto

Wed 11/4

6:00 am-8:49 pm

2 stops22h 49m

$802

PortlandPorto

PDX - OPO

PDXOPO

Portland

Mon 10/26

4:29 pm-9:30 am

2 stops34h 01m

Porto

Thu 11/5

6:00 am-10:38 pm

2 stops24h 38m

$807

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

$972

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 $826 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 $681 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	14h 25m
Direct flights	None

The fastest flight from Portland to Portugal takes 14h 25m

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 7.0 654 reviews	Search Icelandair flights
KLM	PriceFrom $491	Free Cancellation	Rating 7.8 1,517 reviews	Search KLM flights
Delta	PriceFrom $494	Free Cancellation	Rating 7.9 8,455 reviews	Search Delta flights
Lufthansa	PriceFrom $501	Free Cancellation	Rating 6.8 8,004 reviews	Search Lufthansa flights
United Airlines	PriceFrom $502	Free Cancellation	Rating 7.4 9,727 reviews	Search United Airlines flights
British Airways	PriceFrom $510	Free Cancellation	Rating 6.7 7,982 reviews	Search British Airways flights
Air Canada	PriceFrom $577	Free Cancellation	Rating 7.1 11,046 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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Complete your trip

Feeling lucky

Popular cities in Portugal

Flights to Lisbonfrom $474

Flights to Portofrom $484

Flights to Funchalfrom $611

Flights to Farofrom $544

Flights to Ponta Delgadafrom $577

Flights to Lajesfrom $653

Flights to Pico Islandfrom $674

Flights to Hortafrom $678

Flights to Porto Santofrom $822

Flights to Velasfrom $845

Cheap flights from Portland to Portugal from $309

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 8/26. 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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American Airlines flights from Portland to Portugal

Our best American Airlines deals on Portland to Portugal flight tickets

Iberia flights from Portland to Portugal

Our best Iberia 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