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Cheap flights from Portland to Portugal from $302

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 10/11. 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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Cheap round-trip flights

Air Canada Logo
7:00 pm - 8:55 amPDX-LIS
29h 55m2 stops
Air Canada Logo
11:20 am - 2:45 pmLIS-PDX
59h 25m2 stops
$569Air Canada
Find Deal
Tue, Nov 25 - Tue, Dec 2
Air Canada Logo
7:00 pm - 9:20 amPDX-LIS
30h 20m2 stops
Air Canada Logo
11:20 am - 10:08 pmLIS-PDX
42h 48m2 stops
$575Air Canada
Find Deal
Mon, Feb 2 - Tue, Feb 17
United Airlines Logo
10:56 pm - 9:20 amPDX-LIS
26h 24m2 stops
United Airlines Logo
11:20 am - 10:38 pmLIS-PDX
43h 18m3 stops
$580United Airlines
Find Deal
Mon, Feb 2 - Tue, Feb 17
United Airlines Logo
11:59 pm - 8:55 amPDX-LIS
24h 56m2 stops
United Airlines Logo
10:50 am - 9:15 pmLIS-PDX
42h 25m2 stops
$589United Airlines
Find Deal
Mon, Dec 1 - Sun, Dec 7
British Airways Logo
5:45 pm - 9:45 pmPDX-LIS
20h 00m1 stop
British Airways Logo
6:30 am - 9:20 pmLIS-PDX
22h 50m2 stops
$595British Airways
Find Deal
Sun, Nov 16 - Tue, Nov 25
British Airways Logo
5:45 pm - 9:45 pmPDX-LIS
20h 00m1 stop
British Airways Logo
7:40 pm - 3:55 pmLIS-PDX
28h 15m1 stop
$649British Airways
Find Deal
Sun, Nov 16 - Tue, Nov 25
KLM Logo
1:25 pm - 10:30 amPDX-OPO
13h 05m1 stop
KLM Logo
9:55 am - 11:25 amOPO-PDX
33h 30m1 stop
$662KLM
Find Deal
Wed, Nov 12 - Tue, Nov 18
Delta Logo
1:25 pm - 10:30 amPDX-OPO
13h 05m1 stop
Delta Logo
11:15 am - 11:25 amOPO-PDX
32h 10m1 stop
$712Delta
Find Deal
Wed, Nov 12 - Sun, Nov 16
Delta Logo
12:40 am - 10:30 amPDX-OPO
25h 50m2 stops
Delta Logo
11:15 am - 11:25 amOPO-PDX
32h 10m1 stop
$717Delta
Find Deal
Tue, Nov 11 - Sun, Nov 16
KLM Logo
1:25 pm - 10:25 pmPDX-OPO
25h 00m1 stop
KLM Logo
6:30 am - 8:25 pmOPO-PDX
21h 55m2 stops
$722KLM
Find Deal
Fri, Nov 28 - Fri, Dec 12

Air Canada flights from Portland to Portugal

Our best Air Canada deals on Portland to Portugal flight tickets
Air Canada
Nov 25
PDX7:00 pmPortland
29h 55m
2 stops
LIS8:55 amLisbon Humberto Delgado
Dec 2
LIS11:20 amLisbon Humberto Delgado
59h 25m
2 stops
PDX2:45 pmPortland
$569
Find similar
Air Canada
Feb 2
PDX7:00 pmPortland
30h 20m
2 stops
LIS9:20 amLisbon Humberto Delgado
Feb 17
LIS11:20 amLisbon Humberto Delgado
42h 48m
2 stops
PDX10:08 pmPortland
$575
Find similar
Air Canada
Oct 23
PDX6:15 amPortland
19h 05m
2 stops
LIS9:20 amLisbon Humberto Delgado
Nov 5
LIS5:00 amLisbon Humberto Delgado
21h 30m
2 stops
PDX6:30 pmPortland
$585
Find similar

Icelandair flights from Portland to Portugal

Our best Icelandair deals on Portland to Portugal flight tickets
Icelandair
Nov 1
PDX3:45 pmPortland
21h 35m
1 stop
LIS8:20 pmLisbon Humberto Delgado
Nov 13
LIS9:20 pmLisbon Humberto Delgado
27h 40m
1 stop
PDX5:00 pmPortland
$588
Find similar
Icelandair
Nov 1
PDX3:45 pmPortland
21h 35m
1 stop
LIS8:20 pmLisbon Humberto Delgado
Nov 13
LIS9:20 pmLisbon Humberto Delgado
27h 40m
1 stop
PDX5:00 pmPortland
$601
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Portland to Portugal that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 18, 2025.
Use the filters below to find and compare flights from Portland to Portugal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Tue 11/25

7:00 pm-8:55 am

2 stops29h 55m

Lisbon Humberto Delgado

Tue 12/2

11:20 am-2:45 pm

2 stops59h 25m

$569

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 2/2

7:00 pm-9:20 am

2 stops30h 20m

Lisbon Humberto Delgado

Tue 2/17

11:20 am-10:08 pm

2 stops42h 48m

$575

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 2/2

10:56 pm-9:20 am

2 stops26h 24m

Lisbon Humberto Delgado

Tue 2/17

11:20 am-10:38 pm

3 stops43h 18m

$580

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 12/1

11:59 pm-8:55 am

2 stops24h 56m

Lisbon Humberto Delgado

Sun 12/7

10:50 am-9:15 pm

2 stops42h 25m

$589

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sun 11/16

5:45 pm-9:45 pm

1 stop20h 00m

Lisbon Humberto Delgado

Tue 11/25

6:30 am-9:20 pm

2 stops22h 50m

$595

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sun 11/16

5:45 pm-9:45 pm

1 stop20h 00m

Lisbon Humberto Delgado

Tue 11/25

7:40 pm-3:55 pm

1 stop28h 15m

$649

PortlandPorto

PDX - OPO

PDXOPO

Portland

Wed 11/12

1:25 pm-10:30 am

1 stop13h 05m

Porto

Tue 11/18

9:55 am-11:25 am

1 stop33h 30m

$662

PortlandPorto

PDX - OPO

PDXOPO

Portland

Wed 11/12

1:25 pm-10:30 am

1 stop13h 05m

Porto

Sun 11/16

11:15 am-11:25 am

1 stop32h 10m

$712

PortlandPorto

PDX - OPO

PDXOPO

Portland

Tue 11/11

12:40 am-10:30 am

2 stops25h 50m

Porto

Sun 11/16

11:15 am-11:25 am

1 stop32h 10m

$717

PortlandPorto

PDX - OPO

PDXOPO

Portland

Fri 11/28

1:25 pm-10:25 pm

1 stop25h 00m

Porto

Fri 12/12

6:30 am-8:25 pm

2 stops21h 55m

$722

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Portugal from

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

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 $611, 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 $661.

What is the cheapest day to depart on your flight to Portugal?

According to our data, Wednesday is the cheapest day to fly to Portugal from Portland. The lowest ticket price found for a Wednesday departure recently was $864. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Portugal is Thursday, with ticket prices averaging around $1,041.

What is the cheapest time of day to depart on your flight to Portugal?

Our most recent data shows that the best time of day to fly to Portugal is in the afternoon. Flights from Portland to Portugal during this time can be as low as $622. In the evening is when there is more demand to fly to Portugal, so prices are often more expensive at around $981 per ticket.

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 $927 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 $762 on momondo.

Can stopping save me money on Portland to Portugal flights?

You could potentially save up to 4% 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

Best Price Found

$302

Fastest flight time

13h 05m

Direct flights

None

Airports in Portugal

4 airports
The best one-way flight to Portugal from Portland in the past 72 hours is $302. The best round-trip flight deal from Portland to Portugal found on momondo in the last 72 hours is $569.
The fastest flight from Portland to Portugal takes 13h 05m
There are no direct flights from Portland to Portugal. Popular non-direct routes for this connection are Portland Airport - Porto Airport and Portland Airport - Lisbon Humberto Delgado Airport.
There are 4 airports near Portugal: Faro (FAO), Lisbon Humberto Delgado (LIS), Ponta Delgada Nordela (PDL), Porto (OPO)
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  • 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?

  • 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
IcelandairPriceFrom $434Free CancellationRating
7.0
527 reviews
Search Icelandair flights
Scandinavian AirlinesPriceFrom $563Free CancellationRating
7.4
1,470 reviews
Search Scandinavian Airlines flights
American AirlinesPriceFrom $564Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $576Free CancellationRating
7.4
8,925 reviews
Search United Airlines flights
LufthansaPriceFrom $578Free CancellationRating
6.8
7,330 reviews
Search Lufthansa flights
DeltaPriceFrom $582Free CancellationRating
8.0
7,981 reviews
Search Delta flights
KLMPriceFrom $585Free CancellationRating
7.8
1,385 reviews
Search KLM flights
Air CanadaPriceFrom $591Free CancellationRating
7.1
9,992 reviews
Search Air Canada flights
Virgin AtlanticPriceFrom $595Free CancellationRating
7.4
657 reviews
Search Virgin Atlantic flights
British AirwaysPriceFrom $624Free CancellationRating
6.6
7,277 reviews
Search British Airways 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.

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Find better results for your trip to Portugal

Popular cities in Portugal

Popular flights according to clicks in the last 7 days on momondo
Flights to Lisbonfrom $356
Flights to Portofrom $340
Flights to Funchalfrom $383
Flights to Farofrom $377
Flights to Ponta Delgadafrom $450
Flights to Lajesfrom $522
Flights to Hortafrom $589
Flights to Pico Islandfrom $559
Flights to Porto Santofrom $580
Flights to Velasfrom $591