What is the cheapest airline that flies from Portland to Portugal?

Air Canada and United Airlines are the most popular carriers operating from Portland to Portugal

What airlines fly to Portugal?

British Airways, Delta and United Airlines 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.

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 March 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.

$245 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.

7:30 pm - 5:45 pm

PDX

LIS

14h 15m

1 stop

6:35 am - 9:38 pm

LIS

PDX

23h 03m

2 stops

$514Multiple Airlines

Sun, Apr 26 - Thu, May 7

7:30 pm - 11:05 pm

PDX

LIS

19h 35m

1 stop

12:30 pm - 11:54 pm

LIS

PDX

19h 24m

2 stops

$516Multiple Airlines

Thu, Apr 16 - Thu, Apr 23

7:30 pm - 11:00 pm

PDX

LIS

19h 30m

1 stop

7:10 am - 5:40 pm

LIS

PDX

18h 30m

1 stop

$526British Airways

Tue, Apr 14 - Tue, Apr 21

7:30 pm - 11:05 pm

PDX

LIS

19h 35m

1 stop

7:20 am - 5:40 pm

LIS

PDX

18h 20m

1 stop

$533British Airways

Thu, Apr 16 - Thu, Apr 23

4:15 pm - 10:30 am

PDX

LIS

34h 15m

2 stops

11:25 am - 5:44 pm

LIS

PDX

38h 19m

2 stops

$555United Airlines

Sat, May 2 - Tue, May 12

1:05 pm - 7:20 am

PDX

FAO

34h 15m

1 stop

5:40 pm - 11:10 am

FAO

PDX

25h 30m

1 stop

$586KLM

Mon, Apr 6 - Wed, Apr 22

1:05 pm - 7:25 pm

PDX

FAO

22h 20m

1 stop

8:10 am - 9:32 pm

FAO

PDX

21h 22m

2 stops

$596KLM

Mon, Apr 6 - Wed, Apr 22

8:05 pm - 10:00 pm

PDX

OPO

41h 55m

2 stops

11:25 am - 11:10 am

OPO

PDX

31h 45m

1 stop

$699Delta

Sun, Apr 12 - Mon, Apr 27

1:32 pm - 6:20 pm

PDX

OPO

20h 48m

2 stops

5:00 am - 11:10 am

OPO

PDX

14h 10m

1 stop

$708Delta

Tue, Apr 14 - Tue, Apr 28

11:59 pm - 9:50 am

PDX

FAO

25h 51m

2 stops

11:40 am - 11:35 am

FAO

PDX

31h 55m

3 stops

$777United Airlines

Sat, Jul 4 - Tue, Sep 1

Finnair flights from Portland to Portugal

Our best Finnair deals on Portland to Portugal flight tickets

Finnair

Apr 26

PDX6:22 amPortland

33h 03m

2 stops

LIS11:25 pmLisbon Humberto Delgado

May 7

LIS4:35 pmLisbon Humberto Delgado

37h 03m

2 stops

PDX9:38 pmPortland

$525

Finnair

Apr 19

PDX6:22 amPortland

33h 03m

2 stops

LIS11:25 pmLisbon Humberto Delgado

Apr 27

LIS6:35 amLisbon Humberto Delgado

24h 21m

2 stops

PDX10:56 pmPortland

$528

Finnair

Apr 19

PDX6:22 amPortland

33h 03m

2 stops

LIS11:25 pmLisbon Humberto Delgado

May 5

LIS6:35 amLisbon Humberto Delgado

24h 21m

2 stops

PDX10:56 pmPortland

$529

British Airways flights from Portland to Portugal

Our best British Airways deals on Portland to Portugal flight tickets

British Airways

Apr 14

PDX7:30 pmPortland

19h 30m

1 stop

LIS11:00 pmLisbon Humberto Delgado

Apr 21

LIS7:10 amLisbon Humberto Delgado

18h 30m

1 stop

PDX5:40 pmPortland

$526

British Airways

Apr 16

PDX7:30 pmPortland

19h 35m

1 stop

LIS11:05 pmLisbon Humberto Delgado

Apr 23

LIS7:20 amLisbon Humberto Delgado

18h 20m

1 stop

PDX5:40 pmPortland

$533

British Airways

Apr 14

PDX7:30 pmPortland

19h 30m

1 stop

LIS11:00 pmLisbon Humberto Delgado

Apr 21

LIS11:00 amLisbon Humberto Delgado

19h 56m

2 stops

PDX10:56 pmPortland

$541

Fly from

Fly to

Route

Depart

Return

Price

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sun 4/26

7:30 pm-5:45 pm

1 stop14h 15m

Lisbon Humberto Delgado

Thu 5/7

6:35 am-9:38 pm

2 stops23h 03m

$514

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Thu 4/16

7:30 pm-11:05 pm

1 stop19h 35m

Lisbon Humberto Delgado

Thu 4/23

12:30 pm-11:54 pm

2 stops19h 24m

$516

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Tue 4/14

7:30 pm-11:00 pm

1 stop19h 30m

Lisbon Humberto Delgado

Tue 4/21

7:10 am-5:40 pm

1 stop18h 30m

$526

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Thu 4/16

7:30 pm-11:05 pm

1 stop19h 35m

Lisbon Humberto Delgado

Thu 4/23

7:20 am-5:40 pm

1 stop18h 20m

$533

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sat 5/2

4:15 pm-10:30 am

2 stops34h 15m

Lisbon Humberto Delgado

Tue 5/12

11:25 am-5:44 pm

2 stops38h 19m

$555

PortlandFaro

PDX - FAO

PDXFAO

Portland

Mon 4/6

1:05 pm-7:20 am

1 stop34h 15m

Faro

Wed 4/22

5:40 pm-11:10 am

1 stop25h 30m

$586

PortlandFaro

PDX - FAO

PDXFAO

Portland

Mon 4/6

1:05 pm-7:25 pm

1 stop22h 20m

Faro

Wed 4/22

8:10 am-9:32 pm

2 stops21h 22m

$596

PortlandPorto

PDX - OPO

PDXOPO

Portland

Sun 4/12

8:05 pm-10:00 pm

2 stops41h 55m

Porto

Mon 4/27

11:25 am-11:10 am

1 stop31h 45m

$699

PortlandPorto

PDX - OPO

PDXOPO

Portland

Tue 4/14

1:32 pm-6:20 pm

2 stops20h 48m

Porto

Tue 4/28

5:00 am-11:10 am

1 stop14h 10m

$708

PortlandFaro

PDX - FAO

PDXFAO

Portland

Sat 7/4

11:59 pm-9:50 am

2 stops25h 51m

Faro

Tue 9/1

11:40 am-11:35 am

3 stops31h 55m

$777

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 November. Flight prices, which tend to average around $557, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of November, then book flights to Portugal from Portland during February instead. Flights to Portugal in February, while not as cheap as those in November, still average around $601.

How far in advance should I book a flight 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 $833 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 $747 on momondo.

Can stopping save me money on Portland to Portugal flights?

You could potentially save up to 15% 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	12h 33m
Direct flights	None

The fastest flight from Portland to Portugal takes 12h 33m

There are no direct flights from Portland to Portugal. There are no popular flight routes from Portland to Portugal.

Search flight deals

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 March 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
Icelandair	PriceFrom $360	Free Cancellation	Rating 7.1 617 reviews	Search Icelandair flights
KLM	PriceFrom $492	Free Cancellation	Rating 7.7 1,465 reviews	Search KLM flights
Delta	PriceFrom $494	Free Cancellation	Rating 7.9 8,250 reviews	Search Delta flights
Lufthansa	PriceFrom $501	Free Cancellation	Rating 6.8 7,826 reviews	Search Lufthansa flights
British Airways	PriceFrom $513	Free Cancellation	Rating 6.7 7,775 reviews	Search British Airways flights
American Airlines	PriceFrom $524	Free Cancellation	Rating 7.1 11,381 reviews	Search American Airlines flights
United Airlines	PriceFrom $537	Free Cancellation	Rating 7.4 9,388 reviews	Search United Airlines flights
Air Canada	PriceFrom $583	Free Cancellation	Rating 7.1 10,776 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

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Complete your trip

Feeling lucky

Popular cities in Portugal

Flights to Lisbonfrom $397

Flights to Portofrom $363

Flights to Funchalfrom $447

Flights to Farofrom $437

Flights to Ponta Delgadafrom $450

Flights to Lajesfrom $539

Flights to Pico Islandfrom $583

Flights to Hortafrom $593

Flights to Porto Santofrom $421

Flights to Velasfrom $554

Cheap flights from Portland to Portugal from $245

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 4/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Finnair flights from Portland to Portugal

Our best Finnair deals on Portland to Portugal flight tickets

British Airways flights from Portland to Portugal

Our best British Airways 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 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

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