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Cheap flights from Oregon to Portugal from $304

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Oregon to Portugal departing on 12/9. 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
0 bags

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Find the cheapest flights from Oregon to Portugal

Cheap round-trip flights

Air Canada Logo
6:15 am - 9:20 amPDX-LIS
19h 05m2 stops
Air Canada Logo
5:00 am - 6:30 pmLIS-PDX
21h 30m2 stops
$543Air Canada
Find Deal
Mon, Oct 20 - Wed, Nov 5
Air Canada Logo
6:15 am - 9:20 amPDX-LIS
19h 05m2 stops
Air Canada Logo
5:00 am - 6:30 pmLIS-PDX
21h 30m2 stops
$547Air Canada
Find Deal
Mon, Oct 20 - Wed, Nov 5
Air Canada Logo
6:15 am - 9:20 amPDX-LIS
19h 05m2 stops
Air Canada Logo
5:00 am - 6:30 pmLIS-PDX
21h 30m2 stops
$552Air Canada
Find Deal
Thu, Oct 23 - Sat, Nov 8
United Airlines Logo
5:00 am - 9:30 amEUG-OPO
20h 30m2 stops
United Airlines Logo
6:00 am - 10:54 pmOPO-EUG
23h 54m2 stops
$564United Airlines
Find Deal
Mon, Mar 2 - Fri, Mar 13
United Airlines Logo
10:17 pm - 8:20 amPDX-LIS
26h 03m1 stop
United Airlines Logo
5:00 am - 10:10 pmLIS-PDX
25h 10m2 stops
$565United Airlines
Find Deal
Mon, Oct 20 - Wed, Nov 5
Logo
5:45 pm - 6:55 pmPDX-LIS
17h 10m1 stop
Logo
6:45 pm - 12:20 pmLIS-PDX
25h 35m2 stops
$571
Find Deal
Mon, Jan 5 - Mon, Jan 19
Finnair Logo
7:25 pm - 11:10 pmPDX-LIS
19h 45m1 stop
Finnair Logo
4:10 pm - 7:44 pmLIS-PDX
34h 34m2 stops
$573Finnair
Find Deal
Mon, Oct 13 - Thu, Oct 30
Icelandair Logo
3:45 pm - 8:20 pmPDX-LIS
21h 35m1 stop
Icelandair Logo
9:20 pm - 5:00 pmLIS-PDX
27h 40m1 stop
$574Icelandair
Find Deal
Sat, Nov 1 - Thu, Nov 13
Logo
9:17 am - 9:05 amPDX-LIS
15h 48m2 stops
Logo
4:10 pm - 9:00 pmLIS-PDX
35h 50m2 stops
$575
Find Deal
Mon, Mar 2 - Mon, Mar 16
Finnair Logo
7:25 pm - 11:10 pmPDX-LIS
19h 45m1 stop
Finnair Logo
4:30 pm - 7:46 pmLIS-PDX
35h 16m2 stops
$581Finnair
Find Deal
Mon, Oct 6 - Mon, Oct 13

Finnair flights from Oregon to Portugal

Our best Finnair deals on Oregon to Portugal flight tickets
Finnair
Oct 13
PDX7:25 pmPortland
19h 45m
1 stop
LIS11:10 pmLisbon Humberto Delgado
Oct 30
LIS4:10 pmLisbon Humberto Delgado
34h 34m
2 stops
PDX7:44 pmPortland
$573
Find similar
Finnair
Oct 6
PDX7:25 pmPortland
19h 45m
1 stop
LIS11:10 pmLisbon Humberto Delgado
Oct 13
LIS4:30 pmLisbon Humberto Delgado
35h 16m
2 stops
PDX7:46 pmPortland
$581
Find similar
Finnair
Oct 13
PDX8:46 amPortland
30h 24m
2 stops
LIS11:10 pmLisbon Humberto Delgado
Oct 30
LIS4:10 pmLisbon Humberto Delgado
34h 34m
2 stops
PDX7:44 pmPortland
$615
Find similar

Air Canada flights from Oregon to Portugal

Our best Air Canada deals on Oregon to Portugal flight tickets
Air Canada
Oct 20
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
$543
Find similar
Air Canada
Oct 20
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
$547
Find similar
Air Canada
Oct 23
PDX6:15 amPortland
19h 05m
2 stops
LIS9:20 amLisbon Humberto Delgado
Nov 8
LIS5:00 amLisbon Humberto Delgado
21h 30m
2 stops
PDX6:30 pmPortland
$552
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Oregon 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 September 4, 2025.
Use the filters below to find and compare flights from Oregon to Portugal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 10/20

6:15 am-9:20 am

2 stops19h 05m

Lisbon Humberto Delgado

Wed 11/5

5:00 am-6:30 pm

2 stops21h 30m

$543

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 10/20

6:15 am-9:20 am

2 stops19h 05m

Lisbon Humberto Delgado

Wed 11/5

5:00 am-6:30 pm

2 stops21h 30m

$547

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Thu 10/23

6:15 am-9:20 am

2 stops19h 05m

Lisbon Humberto Delgado

Sat 11/8

5:00 am-6:30 pm

2 stops21h 30m

$552

EugenePorto

EUG - OPO

EUGOPO

Eugene

Mon 3/2

5:00 am-9:30 am

2 stops20h 30m

Porto

Fri 3/13

6:00 am-10:54 pm

2 stops23h 54m

$564

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 10/20

10:17 pm-8:20 am

1 stop26h 03m

Lisbon Humberto Delgado

Wed 11/5

5:00 am-10:10 pm

2 stops25h 10m

$565

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 1/5

5:45 pm-6:55 pm

1 stop17h 10m

Lisbon Humberto Delgado

Mon 1/19

6:45 pm-12:20 pm

2 stops25h 35m

$571

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 10/13

7:25 pm-11:10 pm

1 stop19h 45m

Lisbon Humberto Delgado

Thu 10/30

4:10 pm-7:44 pm

2 stops34h 34m

$573

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sat 11/1

3:45 pm-8:20 pm

1 stop21h 35m

Lisbon Humberto Delgado

Thu 11/13

9:20 pm-5:00 pm

1 stop27h 40m

$574

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 3/2

9:17 am-9:05 am

2 stops15h 48m

Lisbon Humberto Delgado

Mon 3/16

4:10 pm-9:00 pm

2 stops35h 50m

$575

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 10/6

7:25 pm-11:10 pm

1 stop19h 45m

Lisbon Humberto Delgado

Mon 10/13

4:30 pm-7:46 pm

2 stops35h 16m

$581

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 Oregon 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 Oregon is in November. Flight prices, which tend to average around $619, 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 Oregon during February instead. Flights to Portugal in February, while not as cheap as those in November, still average around $666.

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 Oregon. 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 Oregon 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 Oregon 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 Oregon for as low as $762 on momondo.

Can stopping save me money on Oregon to Portugal flights?

You could potentially save up to 27% on your flight if you consider stops on a Oregon to Portugal flight.

Cheap Oregon to Portugal flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Oregon to Portugal

Direct flights

None
There are no direct flights from Oregon to Portugal. There are no popular flight routes from Oregon to Portugal.
Search flight deals

  • When did momondo last update prices for flights from Oregon to Portugal?

    Prices for flights from Oregon to Portugal refresh daily.

  • How many operators does momondo search for flights from Oregon to Portugal?

  • How old do you have to be to fly from Oregon to Portugal?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Oregon to Portugal.

  • What documentation or ID do you need to fly to Portugal?

    The required travel and health documents for your Portugal trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Portugal. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Oregon to Portugal

Compare and see reviews for airlines that fly from Oregon to Portugal with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom $434Free CancellationRating
7.0
545 reviews
Search Icelandair flights
Scandinavian AirlinesPriceFrom $563Free CancellationRating
7.4
1,482 reviews
Search Scandinavian Airlines flights
American AirlinesPriceFrom $564Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
LufthansaPriceFrom $578Free CancellationRating
6.8
7,390 reviews
Search Lufthansa flights
DeltaPriceFrom $587Free CancellationRating
7.9
7,977 reviews
Search Delta flights
United AirlinesPriceFrom $590Free CancellationRating
7.4
8,937 reviews
Search United Airlines flights
KLMPriceFrom $591Free CancellationRating
7.8
1,383 reviews
Search KLM flights
Air CanadaPriceFrom $591Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
Virgin AtlanticPriceFrom $595Free CancellationRating
7.4
663 reviews
Search Virgin Atlantic flights
Air FrancePriceFrom $643Free CancellationRating
7.4
1,469 reviews
Search Air France flights

Why use momondo?

Why should I use momondo to find a flight deal from Oregon to Portugal?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Oregon to Portugal. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Oregon to Portugal with flexible booking policies on momondo?

Flights from Oregon to Portugal with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Oregon to Portugal?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Oregon to Portugal.

I’m not ready to book a flight from Oregon to Portugal right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Oregon to Portugal flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Find better results for your trip to Portugal

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