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Cheap flights from Portland to Portugal from $248

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 4/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Portland to Portugal

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
11:59 pm - 1:50 pm
PDX
-
FAO
29h 51m
2 stops
United Airlines Logo
3:25 pm - 8:48 pm
FAO
-
PDX
37h 23m
2 stops
$608United Airlines
Mon, Apr 13 - Thu, Apr 23
Multiple Airlines Logo
3:30 pm - 5:50 pm
PDX
-
OPO
18h 20m
2 stops
Multiple Airlines Logo
6:30 pm - 6:00 pm
OPO
-
PDX
55h 30m
2 stops
$610Multiple Airlines
Tue, Apr 28 - Wed, May 6
United Airlines Logo
11:59 pm - 1:50 pm
PDX
-
FAO
29h 51m
2 stops
United Airlines Logo
3:25 pm - 11:44 am
FAO
-
PDX
52h 19m
3 stops
$621United Airlines
Mon, Apr 13 - Thu, Apr 23
British Airways Logo
7:30 pm - 11:05 pm
PDX
-
LIS
19h 35m
1 stop
British Airways Logo
7:20 am - 5:40 pm
LIS
-
PDX
18h 20m
1 stop
$665British Airways
Thu, Apr 16 - Thu, Apr 23
Lufthansa Logo
3:30 pm - 10:45 pm
PDX
-
LIS
23h 15m
2 stops
Lufthansa Logo
7:25 am - 11:59 pm
LIS
-
PDX
24h 34m
2 stops
$672Lufthansa
Fri, Apr 17 - Fri, Apr 24
Lufthansa Logo
7:00 am - 10:15 pm
PDX
-
LIS
31h 15m
2 stops
Lufthansa Logo
5:05 am - 12:41 am
LIS
-
PDX
27h 36m
2 stops
$683Lufthansa
Sun, Apr 19 - Mon, Apr 27
British Airways Logo
7:30 pm - 10:05 am
PDX
-
LIS
30h 35m
1 stop
British Airways Logo
7:20 am - 10:56 pm
LIS
-
PDX
23h 36m
2 stops
$689British Airways
Wed, Apr 15 - Sun, May 3
American Airlines Logo
3:16 pm - 4:55 pm
PDX
-
FAO
17h 39m
2 stops
American Airlines Logo
10:50 pm - 10:47 pm
FAO
-
PDX
31h 57m
2 stops
$780American Airlines
Sat, May 2 - Sat, May 9
Air Canada Logo
7:45 pm - 8:20 am
PDX
-
PDL
29h 35m
2 stops
Air Canada Logo
9:35 am - 3:30 pm
PDL
-
PDX
36h 55m
2 stops
$915Air Canada
Mon, Aug 10 - Wed, Aug 19
Air Canada Logo
10:10 am - 8:20 am
PDX
-
PDL
15h 10m
2 stops
Air Canada Logo
9:35 am - 11:35 am
PDL
-
PDX
33h 00m
2 stops
$975Air Canada
Thu, Aug 13 - Fri, Aug 21

British Airways flights from Portland to Portugal

Our best British Airways deals on Portland to Portugal flight tickets
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
$665
British Airways
Apr 15
PDX7:30 pmPortland
30h 35m
1 stop
LIS10:05 amLisbon Humberto Delgado
May 3
LIS7:20 amLisbon Humberto Delgado
23h 36m
2 stops
PDX10:56 pmPortland
$689
British Airways
Apr 16
PDX7:05 amPortland
32h 00m
2 stops
LIS11:05 pmLisbon Humberto Delgado
May 3
LIS6:50 pmLisbon Humberto Delgado
36h 06m
2 stops
PDX10:56 pmPortland
$693

KLM flights from Portland to Portugal

Our best KLM deals on Portland to Portugal flight tickets
KLM
Apr 27
PDX1:05 pmPortland
13h 35m
1 stop
OPO10:40 amPorto
May 9
OPO5:55 amPorto
16h 53m
2 stops
PDX2:48 pmPortland
$893
KLM
Apr 28
PDX1:32 pmPortland
17h 58m
2 stops
OPO3:30 pmPorto
May 9
OPO5:55 amPorto
19h 16m
2 stops
PDX5:11 pmPortland
$898
KLM
Mar 31
PDX1:05 pmPortland
25h 45m
1 stop
LIS10:50 pmLisbon Humberto Delgado
May 5
LIS5:00 amLisbon Humberto Delgado
14h 10m
1 stop
PDX11:10 amPortland
$914

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 March 23, 2026.
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

Cheapest round-trip

PortlandFaro

PDX - FAO

PDXFAO

Portland

Mon 4/13

11:59 pm-1:50 pm

2 stops29h 51m

Faro

Thu 4/23

3:25 pm-8:48 pm

2 stops37h 23m

$608

PortlandPorto

PDX - OPO

PDXOPO

Portland

Tue 4/28

3:30 pm-5:50 pm

2 stops18h 20m

Porto

Wed 5/6

6:30 pm-6:00 pm

2 stops55h 30m

$610

PortlandFaro

PDX - FAO

PDXFAO

Portland

Mon 4/13

11:59 pm-1:50 pm

2 stops29h 51m

Faro

Thu 4/23

3:25 pm-11:44 am

3 stops52h 19m

$621
Quickest round-trip

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

$665

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Fri 4/17

3:30 pm-10:45 pm

2 stops23h 15m

Lisbon Humberto Delgado

Fri 4/24

7:25 am-11:59 pm

2 stops24h 34m

$672

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sun 4/19

7:00 am-10:15 pm

2 stops31h 15m

Lisbon Humberto Delgado

Mon 4/27

5:05 am-12:41 am

2 stops27h 36m

$683

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 4/15

7:30 pm-10:05 am

1 stop30h 35m

Lisbon Humberto Delgado

Sun 5/3

7:20 am-10:56 pm

2 stops23h 36m

$689

PortlandFaro

PDX - FAO

PDXFAO

Portland

Sat 5/2

3:16 pm-4:55 pm

2 stops17h 39m

Faro

Sat 5/9

10:50 pm-10:47 pm

2 stops31h 57m

$780

PortlandPonta Delgada

PDX - PDL

PDXPDL

Portland

Mon 8/10

7:45 pm-8:20 am

2 stops29h 35m

Ponta Delgada Nordela

Wed 8/19

9:35 am-3:30 pm

2 stops36h 55m

$915

PortlandPonta Delgada

PDX - PDL

PDXPDL

Portland

Thu 8/13

10:10 am-8:20 am

2 stops15h 10m

Ponta Delgada Nordela

Fri 8/21

9:35 am-11:35 am

2 stops33h 00m

$975

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 $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 $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 $763 on momondo.

Can stopping save me money on Portland to Portugal flights?

You could potentially save up to 2% 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

  • 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 $360Free CancellationRating
7.0
625 reviews
Search Icelandair flights
KLMPriceFrom $492Free CancellationRating
7.8
1,477 reviews
Search KLM flights
DeltaPriceFrom $494Free CancellationRating
7.9
8,319 reviews
Search Delta flights
LufthansaPriceFrom $501Free CancellationRating
6.8
7,862 reviews
Search Lufthansa flights
United AirlinesPriceFrom $502Free CancellationRating
7.4
9,459 reviews
Search United Airlines flights
British AirwaysPriceFrom $512Free CancellationRating
6.7
7,811 reviews
Search British Airways flights
American AirlinesPriceFrom $524Free CancellationRating
7.1
11,488 reviews
Search American Airlines flights
Air CanadaPriceFrom $577Free CancellationRating
7.1
10,834 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.

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Find better results for your trip to Portugal

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