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Cheap flights from Oregon to Porto from $350

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 8/2. 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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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.
Air Canada Logo
10:10 am - 7:00 am
PDX
-
OPO
36h 50m
2 stops
Air Canada Logo
12:15 pm - 3:57 pm
OPO
-
PDX
35h 42m
2 stops
$907Air Canada
Tue, Jul 21 - Tue, Jul 28
United Airlines Logo
10:52 pm - 6:55 am
PDX
-
OPO
24h 03m
1 stop
United Airlines Logo
12:15 pm - 3:57 pm
OPO
-
PDX
35h 42m
2 stops
$908United Airlines
Tue, Jul 21 - Tue, Jul 28
United Airlines Logo
10:40 pm - 7:00 am
PDX
-
OPO
24h 20m
2 stops
United Airlines Logo
11:20 am - 10:30 pm
OPO
-
PDX
43h 10m
2 stops
$911United Airlines
Tue, Jul 21 - Wed, Jul 29
United Airlines Logo
6:49 pm - 7:00 am
EUG
-
OPO
28h 11m
2 stops
United Airlines Logo
2:25 pm - 3:28 pm
OPO
-
EUG
33h 03m
2 stops
$918United Airlines
Tue, Jul 28 - Wed, Aug 12
Air Canada Logo
7:45 pm - 7:00 am
PDX
-
OPO
27h 15m
2 stops
Air Canada Logo
11:20 am - 9:31 am
OPO
-
PDX
30h 11m
2 stops
$920Air Canada
Tue, Jul 21 - Wed, Jul 29
KLM Logo
7:00 am - 10:30 am
PDX
-
OPO
19h 30m
1 stop
KLM Logo
12:40 pm - 9:13 pm
OPO
-
PDX
16h 33m
1 stop
$953KLM
Tue, Jul 21 - Wed, Jul 29
Delta Logo
11:17 am - 3:25 pm
PDX
-
OPO
20h 08m
2 stops
Delta Logo
12:25 pm - 9:13 pm
OPO
-
PDX
16h 48m
1 stop
$957Delta
Tue, Jul 7 - Tue, Jul 14
KLM Logo
10:35 pm - 10:30 am
PDX
-
OPO
27h 55m
1 stop
KLM Logo
12:25 pm - 9:13 pm
OPO
-
PDX
16h 48m
1 stop
$963KLM
Tue, Jul 7 - Tue, Jul 14
Lufthansa Logo
10:54 pm - 6:55 am
PDX
-
OPO
24h 01m
1 stop
Lufthansa Logo
2:25 pm - 12:47 am
OPO
-
PDX
18h 22m
1 stop
$971Lufthansa
Sun, Aug 2 - Wed, Aug 12
Multiple Airlines Logo
6:13 am - 11:45 am
EUG
-
OPO
21h 32m
3 stops
Multiple Airlines Logo
1:30 pm - 12:59 pm
OPO
-
EUG
31h 29m
3 stops
$1,846Multiple Airlines
Thu, Jun 18 - Thu, Jun 25

Air Canada flights from Oregon to Porto

Our best Air Canada deals on Oregon to Porto flight tickets
Air Canada
Oct 17
PDX7:45 pmPortland
51h 15m
2 stops
OPO7:00 amPorto
Nov 20
OPO6:15 amPorto
35h 10m
2 stops
PDX9:25 amPortland
$793
Air Canada
Oct 21
PDX10:10 amPortland
24h 20m
2 stops
OPO6:30 pmPorto
Nov 20
OPO6:15 amPorto
40h 25m
2 stops
PDX2:40 pmPortland
$799
Air Canada
Oct 15
PDX3:30 pmPortland
55h 30m
2 stops
OPO7:00 amPorto
Nov 20
OPO6:15 amPorto
20h 15m
2 stops
PDX6:30 pmPortland
$843

Lufthansa flights from Oregon to Porto

Our best Lufthansa deals on Oregon to Porto flight tickets
Lufthansa
Oct 17
PDX3:30 pmPortland
55h 30m
2 stops
OPO7:00 amPorto
Nov 18
OPO6:00 amPorto
26h 02m
2 stops
PDX12:02 amPortland
$801
Lufthansa
Oct 15
PDX3:30 pmPortland
31h 40m
2 stops
OPO7:10 amPorto
Nov 17
OPO12:30 pmPorto
19h 32m
2 stops
PDX12:02 amPortland
$851
Lufthansa
Oct 21
PDX2:14 pmPortland
25h 11m
2 stops
OPO11:25 pmPorto
Nov 14
OPO6:00 amPorto
22h 49m
2 stops
PDX8:49 pmPortland
$860

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 May 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

Cheapest round-trip

PortlandPorto

PDX - OPO

PDXOPO

Portland

Tue 7/21

10:10 am-7:00 am

2 stops36h 50m

Porto

Tue 7/28

12:15 pm-3:57 pm

2 stops35h 42m

$907

PortlandPorto

PDX - OPO

PDXOPO

Portland

Tue 7/21

10:52 pm-6:55 am

1 stop24h 03m

Porto

Tue 7/28

12:15 pm-3:57 pm

2 stops35h 42m

$908

PortlandPorto

PDX - OPO

PDXOPO

Portland

Tue 7/21

10:40 pm-7:00 am

2 stops24h 20m

Porto

Wed 7/29

11:20 am-10:30 pm

2 stops43h 10m

$911

EugenePorto

EUG - OPO

EUGOPO

Eugene

Tue 7/28

6:49 pm-7:00 am

2 stops28h 11m

Porto

Wed 8/12

2:25 pm-3:28 pm

2 stops33h 03m

$918

PortlandPorto

PDX - OPO

PDXOPO

Portland

Tue 7/21

7:45 pm-7:00 am

2 stops27h 15m

Porto

Wed 7/29

11:20 am-9:31 am

2 stops30h 11m

$920
Quickest round-trip

PortlandPorto

PDX - OPO

PDXOPO

Portland

Tue 7/21

7:00 am-10:30 am

1 stop19h 30m

Porto

Wed 7/29

12:40 pm-9:13 pm

1 stop16h 33m

$953

PortlandPorto

PDX - OPO

PDXOPO

Portland

Tue 7/7

11:17 am-3:25 pm

2 stops20h 08m

Porto

Tue 7/14

12:25 pm-9:13 pm

1 stop16h 48m

$957

PortlandPorto

PDX - OPO

PDXOPO

Portland

Tue 7/7

10:35 pm-10:30 am

1 stop27h 55m

Porto

Tue 7/14

12:25 pm-9:13 pm

1 stop16h 48m

$963

PortlandPorto

PDX - OPO

PDXOPO

Portland

Sun 8/2

10:54 pm-6:55 am

1 stop24h 01m

Porto

Wed 8/12

2:25 pm-12:47 am

1 stop18h 22m

$971

EugenePorto

EUG - OPO

EUGOPO

Eugene

Thu 6/18

6:13 am-11:45 am

3 stops21h 32m

Porto

Thu 6/25

1:30 pm-12:59 pm

3 stops31h 29m

$1,846

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 $468. If you aren’t able to travel during the month of January, then book flights to Porto from Oregon during November instead. Flights to Porto in November, while not as cheap as those in January, still average around $479.

How far in advance should I book a flight from Oregon 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 $903 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 $733 on momondo.

Can stopping save me money on Oregon to Porto flights?

You could potentially save up to 67% 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

18h 15m

Direct flights

None
The fastest flight from Oregon to Porto takes 18h 15m
There are no direct flights from Oregon to Porto. There are no popular flight routes from Oregon to Porto.
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Frequently asked questions about flying from Oregon to Porto

  • 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
8,460 reviews
Search Delta flights
KLMPriceFrom $498Free CancellationRating
7.8
1,511 reviews
Search KLM flights
United AirlinesPriceFrom $537Free CancellationRating
7.4
9,690 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
Lamego
Esposende
Chaves
Pinhao
Guimarães
Espinho
Arcos de Valdevez
Ponte de Lima
Viseu
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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