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Cheap flights from Oregon to Porto from $320

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 Porto departing on 4/9. 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 Porto

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:00 am - 10:30 am
PDX
-
OPO
19h 30m
2 stops
Multiple Airlines Logo
5:00 am - 11:25 am
OPO
-
PDX
14h 25m
1 stop
$484Multiple Airlines
Wed, Mar 4 - Sun, Mar 8
Delta Logo
2:25 pm - 10:30 am
PDX
-
OPO
13h 05m
1 stop
Delta Logo
11:15 am - 12:25 pm
OPO
-
PDX
32h 10m
1 stop
$486Delta
Mon, Mar 9 - Tue, Mar 17
Delta Logo
10:30 pm - 3:25 pm
PDX
-
OPO
33h 55m
2 stops
Delta Logo
11:15 am - 12:25 pm
OPO
-
PDX
32h 10m
1 stop
$490Delta
Sun, Mar 8 - Tue, Mar 17
United Airlines Logo
11:28 pm - 9:30 am
PDX
-
OPO
26h 02m
2 stops
United Airlines Logo
12:30 pm - 6:47 pm
OPO
-
PDX
37h 17m
2 stops
$492United Airlines
Sat, Mar 7 - Tue, Mar 17
Multiple Airlines Logo
7:00 am - 10:30 am
PDX
-
OPO
19h 30m
2 stops
Multiple Airlines Logo
5:00 am - 8:25 pm
OPO
-
PDX
22h 25m
2 stops
$495Multiple Airlines
Wed, Mar 4 - Wed, Mar 11
Lufthansa Logo
3:45 pm - 11:40 pm
PDX
-
OPO
23h 55m
2 stops
Lufthansa Logo
6:15 am - 12:35 am
OPO
-
PDX
25h 20m
2 stops
$497Lufthansa
Sat, Mar 7 - Sat, Mar 14
SWISS Logo
1:39 pm - 11:15 am
PDX
-
OPO
38h 36m
2 stops
SWISS Logo
12:05 pm - 11:04 pm
OPO
-
PDX
41h 59m
2 stops
$499SWISS
Tue, Mar 10 - Mon, Mar 16
Multiple Airlines Logo
3:15 pm - 3:40 pm
PDX
-
OPO
40h 25m
2 stops
Multiple Airlines Logo
8:40 am - 10:29 pm
OPO
-
PDX
21h 49m
2 stops
$505Multiple Airlines
Tue, Apr 7 - Tue, Apr 21
United Airlines Logo
11:59 pm - 11:15 am
PDX
-
OPO
27h 16m
2 stops
United Airlines Logo
6:00 am - 12:44 am
OPO
-
PDX
26h 44m
2 stops
$508United Airlines
Sun, Apr 12 - Fri, Apr 24
Lufthansa Logo
3:50 pm - 10:25 pm
PDX
-
OPO
46h 35m
2 stops
Lufthansa Logo
6:00 am - 6:14 pm
OPO
-
PDX
44h 14m
2 stops
$513Lufthansa
Wed, Mar 4 - Sun, Mar 8

Iberia flights from Oregon to Porto

Our best Iberia deals on Oregon to Porto flight tickets
Iberia
Apr 16
PDX10:35 amPortland
21h 25m
2 stops
OPO4:00 pmPorto
Apr 30
OPO8:20 amPorto
23h 34m
2 stops
PDX11:54 pmPortland
$650
Iberia
Apr 9
PDX10:35 amPortland
25h 25m
2 stops
OPO8:00 pmPorto
Apr 13
OPO8:40 pmPorto
56h 58m
2 stops
PDX9:38 pmPortland
$667

KLM flights from Oregon to Porto

Our best KLM deals on Oregon to Porto flight tickets
KLM
Mar 4
PDX1:25 pmPortland
21h 55m
1 stop
OPO7:20 pmPorto
Mar 8
OPO5:00 amPorto
14h 25m
1 stop
PDX11:25 amPortland
$585
KLM
Apr 7
PDX1:05 pmPortland
25h 10m
1 stop
OPO10:15 pmPorto
Apr 21
OPO4:20 pmPorto
26h 50m
1 stop
PDX11:10 amPortland
$669
KLM
Apr 9
PDX1:05 pmPortland
25h 10m
1 stop
OPO10:15 pmPorto
Apr 13
OPO4:20 pmPorto
26h 50m
1 stop
PDX11:10 amPortland
$719

momondo Fare Finder

 
Customize your flight search to find flights from Oregon to Porto 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 February 7, 2026.
Use the filters below to find and compare flights from Oregon to Porto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandPorto

PDX - OPO

PDXOPO

Portland

Wed 3/4

7:00 am-10:30 am

2 stops19h 30m

Porto

Sun 3/8

5:00 am-11:25 am

1 stop14h 25m

$484

PortlandPorto

PDX - OPO

PDXOPO

Portland

Mon 3/9

2:25 pm-10:30 am

1 stop13h 05m

Porto

Tue 3/17

11:15 am-12:25 pm

1 stop32h 10m

$486

PortlandPorto

PDX - OPO

PDXOPO

Portland

Sun 3/8

10:30 pm-3:25 pm

2 stops33h 55m

Porto

Tue 3/17

11:15 am-12:25 pm

1 stop32h 10m

$490

PortlandPorto

PDX - OPO

PDXOPO

Portland

Sat 3/7

11:28 pm-9:30 am

2 stops26h 02m

Porto

Tue 3/17

12:30 pm-6:47 pm

2 stops37h 17m

$492

PortlandPorto

PDX - OPO

PDXOPO

Portland

Wed 3/4

7:00 am-10:30 am

2 stops19h 30m

Porto

Wed 3/11

5:00 am-8:25 pm

2 stops22h 25m

$495

PortlandPorto

PDX - OPO

PDXOPO

Portland

Sat 3/7

3:45 pm-11:40 pm

2 stops23h 55m

Porto

Sat 3/14

6:15 am-12:35 am

2 stops25h 20m

$497

PortlandPorto

PDX - OPO

PDXOPO

Portland

Tue 3/10

1:39 pm-11:15 am

2 stops38h 36m

Porto

Mon 3/16

12:05 pm-11:04 pm

2 stops41h 59m

$499

PortlandPorto

PDX - OPO

PDXOPO

Portland

Tue 4/7

3:15 pm-3:40 pm

2 stops40h 25m

Porto

Tue 4/21

8:40 am-10:29 pm

2 stops21h 49m

$505

PortlandPorto

PDX - OPO

PDXOPO

Portland

Sun 4/12

11:59 pm-11:15 am

2 stops27h 16m

Porto

Fri 4/24

6:00 am-12:44 am

2 stops26h 44m

$508

PortlandPorto

PDX - OPO

PDXOPO

Portland

Wed 3/4

3:50 pm-10:25 pm

2 stops46h 35m

Porto

Sun 3/8

6:00 am-6:14 pm

2 stops44h 14m

$513

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 Porto from

How to get the cheapest flight ticket from Oregon to Porto

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 Porto?

The month of January is, on average, the cheapest month to fly to Porto from Oregon, with most prices found around $484. If you aren’t able to travel during the month of January, then book flights to Porto from Oregon during December instead. Flights to Porto in December, while not as cheap as those in January, still average around $589.

How far in advance should I book a flight to Porto?

You are more likely to see cheaper flights to Porto from Oregon when booking weeks ahead of your departure date. In general, you can expect to find flights to Porto for around $942 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Porto from Oregon for as low as $652 on momondo.

Can stopping save me money on Oregon to Porto flights?

You could potentially save up to 22% on your flight if you consider stops on a Oregon to Porto flight.

Cheap Oregon to Porto flight deals and tips

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

Fastest flight time

15h 45m

Direct flights

None
The fastest flight from Oregon to Porto takes 15h 45m
There are no direct flights from Oregon to Porto. There are no popular flight routes from Oregon to Porto.
Search flight deals

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

    Prices for flights from Oregon to Porto Airport are refreshed on a daily basis.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Oregon to Porto Airport.

  • What documentation or ID do you need to fly to Porto Airport?

    The travel and health documents you'll need for your trip to Porto Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Porto Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Oregon to Porto

Compare and see reviews for airlines that fly from Oregon to Porto with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $494Free CancellationRating
7.9
8,172 reviews
Search Delta flights
KLMPriceFrom $498Free CancellationRating
7.7
1,450 reviews
Search KLM flights
United AirlinesPriceFrom $537Free CancellationRating
7.4
9,254 reviews
Search United Airlines flights

Traveling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Vila Nova de Gaia
Coimbra
Braga
Aveiro
Matosinhos
Esposende
Lamego
Guimarães
Espinho
Chaves
Pinhao
Arcos de Valdevez
Viseu
Ponte de Lima
Curia
Penafiel
Mesao Frio
Mira
Baiao

Why use momondo?

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

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

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

Yes. momondo allows you to filter the results for Oregon to Porto flights to just show those with flexible booking policies.

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

Once you have performed a search for Oregon to Porto flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Price alerts on flights to Porto from Oregon are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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