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 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?

Air Canada is the most popular carrier 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 January 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.

$303 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.

3:15 pm - 9:20 am

PDX

LIS

34h 05m

2 stops

11:25 am - 6:30 pm

LIS

PDX

39h 05m

2 stops

$442Multiple Airlines

Mon, Apr 13 - Tue, Apr 21

3:15 pm - 9:20 am

PDX

LIS

34h 05m

2 stops

6:10 pm - 10:29 pm

LIS

PDX

36h 19m

2 stops

$444Multiple Airlines

Mon, Apr 13 - Tue, Apr 28

7:00 am - 8:00 am

PDX

LIS

17h 00m

1 stop

5:00 am - 4:30 pm

LIS

PDX

19h 30m

2 stops

$445KLM

Wed, Jan 28 - Wed, Feb 4

7:00 am - 8:00 am

PDX

LIS

17h 00m

1 stop

10:00 am - 8:25 pm

LIS

PDX

18h 25m

1 stop

$446Virgin Atlantic

Wed, Jan 28 - Wed, Feb 4

7:00 am - 8:10 am

PDX

LIS

17h 10m

2 stops

2:00 pm - 11:57 am

LIS

PDX

29h 57m

2 stops

$448United Airlines

Wed, Jan 28 - Wed, Feb 4

11:59 pm - 9:30 am

PDX

OPO

25h 31m

2 stops

12:35 pm - 9:52 pm

OPO

PDX

16h 17m

1 stop

$450United Airlines

Sun, Feb 22 - Wed, Mar 11

7:30 pm - 11:15 pm

PDX

LIS

19h 45m

1 stop

11:00 am - 5:40 pm

LIS

PDX

14h 40m

1 stop

$451British Airways

Wed, Apr 8 - Wed, Apr 22

6:00 am - 12:10 pm

PDX

LIS

22h 10m

2 stops

7:05 am - 3:55 pm

LIS

PDX

16h 50m

1 stop

$455British Airways

Wed, Feb 4 - Wed, Feb 11

1:56 pm - 10:05 pm

PDX

OPO

24h 09m

2 stops

11:45 am - 11:10 am

OPO

PDX

31h 25m

1 stop

$470Delta

Tue, Apr 7 - Mon, Apr 20

1:25 pm - 3:25 pm

PDX

OPO

18h 00m

1 stop

5:00 am - 12:25 pm

OPO

PDX

14h 25m

1 stop

$479Delta

Sun, Feb 22 - Wed, Mar 11

Air Canada flights from Portland to Portugal

Our best Air Canada deals on Portland to Portugal flight tickets

Air Canada

Apr 13

PDX3:15 pmPortland

34h 05m

2 stops

LIS9:20 amLisbon Humberto Delgado

Apr 28

LIS11:25 amLisbon Humberto Delgado

35h 15m

2 stops

PDX2:40 pmPortland

$449

Air Canada

Feb 17

PDX3:15 pmPortland

56h 40m

2 stops

LIS7:55 amLisbon Humberto Delgado

Feb 24

LIS11:20 amLisbon Humberto Delgado

36h 07m

2 stops

PDX3:27 pmPortland

$461

Air Canada

Apr 15

PDX3:15 pmPortland

34h 05m

2 stops

LIS9:20 amLisbon Humberto Delgado

May 1

LIS1:00 pmLisbon Humberto Delgado

31h 25m

2 stops

PDX12:25 pmPortland

$466

Delta flights from Portland to Portugal

Our best Delta deals on Portland to Portugal flight tickets

Delta

Apr 13

PDX7:00 amPortland

17h 00m

1 stop

LIS8:00 amLisbon Humberto Delgado

Apr 23

LIS10:00 amLisbon Humberto Delgado

20h 10m

1 stop

PDX10:10 pmPortland

$457

Delta

Apr 13

PDX7:00 amPortland

17h 00m

1 stop

LIS8:00 amLisbon Humberto Delgado

Apr 24

LIS5:00 amLisbon Humberto Delgado

14h 10m

1 stop

PDX11:10 amPortland

$459

Delta

Mar 14

PDX12:30 amPortland

25h 25m

2 stops

LIS8:55 amLisbon Humberto Delgado

Apr 1

LIS5:00 amLisbon Humberto Delgado

14h 10m

1 stop

PDX11:10 amPortland

$463

Fly from

Fly to

Route

Depart

Return

Price

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 4/13

3:15 pm-9:20 am

2 stops34h 05m

Lisbon Humberto Delgado

Tue 4/21

11:25 am-6:30 pm

2 stops39h 05m

$442

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 4/13

3:15 pm-9:20 am

2 stops34h 05m

Lisbon Humberto Delgado

Tue 4/28

6:10 pm-10:29 pm

2 stops36h 19m

$444

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 1/28

7:00 am-8:00 am

1 stop17h 00m

Lisbon Humberto Delgado

Wed 2/4

5:00 am-4:30 pm

2 stops19h 30m

$445

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 1/28

7:00 am-8:00 am

1 stop17h 00m

Lisbon Humberto Delgado

Wed 2/4

10:00 am-8:25 pm

1 stop18h 25m

$446

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 1/28

7:00 am-8:10 am

2 stops17h 10m

Lisbon Humberto Delgado

Wed 2/4

2:00 pm-11:57 am

2 stops29h 57m

$448

PortlandPorto

PDX - OPO

PDXOPO

Portland

Sun 2/22

11:59 pm-9:30 am

2 stops25h 31m

Porto

Wed 3/11

12:35 pm-9:52 pm

1 stop16h 17m

$450

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 4/8

7:30 pm-11:15 pm

1 stop19h 45m

Lisbon Humberto Delgado

Wed 4/22

11:00 am-5:40 pm

1 stop14h 40m

$451

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 2/4

6:00 am-12:10 pm

2 stops22h 10m

Lisbon Humberto Delgado

Wed 2/11

7:05 am-3:55 pm

1 stop16h 50m

$455

PortlandPorto

PDX - OPO

PDXOPO

Portland

Tue 4/7

1:56 pm-10:05 pm

2 stops24h 09m

Porto

Mon 4/20

11:45 am-11:10 am

1 stop31h 25m

$470

PortlandPorto

PDX - OPO

PDXOPO

Portland

Sun 2/22

1:25 pm-3:25 pm

1 stop18h 00m

Porto

Wed 3/11

5:00 am-12:25 pm

1 stop14h 25m

$479

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 $558, 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 $671.

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 $863 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 $806 on momondo.

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 15m
Direct flights	None

The fastest flight from Portland to Portugal takes 14h 15m

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 January 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 7.1 595 reviews	Search Icelandair flights
Delta	PriceFrom $494	Free Cancellation	Rating 7.9 8,039 reviews	Search Delta flights
KLM	PriceFrom $498	Free Cancellation	Rating 7.7 1,437 reviews	Search KLM flights
American Airlines	PriceFrom $524	Free Cancellation	Rating 7.2 11,114 reviews	Search American Airlines flights
United Airlines	PriceFrom $586	Free Cancellation	Rating 7.4 9,149 reviews	Search United Airlines flights
British Airways	PriceFrom $592	Free Cancellation	Rating 6.7 7,665 reviews	Search British Airways flights
Air Canada	PriceFrom $627	Free Cancellation	Rating 7.1 10,618 reviews	Search Air Canada flights
Lufthansa	PriceFrom $692	Free Cancellation	Rating 6.8 7,709 reviews	Search Lufthansa 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.