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Cheap flights from Oregon to Porto from $291

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 10/21. 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Oregon to Porto

Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
8:45 am - 12:50 pmPDX  Portland-OPO Porto
20h 05m2 stops Denver Intl Munich Franz Josef Strauss
Lufthansa Logo
6:00 am - 11:12 pmOPO  Porto-PDX Portland
25h 12m2 stops Frankfurt am Main Chicago O'Hare Intl
$726Lufthansa
Mon, Dec 7 - Fri, Dec 11
Delta Logo
6:15 am - 10:35 amPDX  Portland-OPO Porto
20h 20m2 stops Minneapolis St Paul Paris Charles de Gaulle
Delta Logo
5:00 am - 11:20 amOPO  Porto-PDX Portland
14h 20m1 stop Amsterdam Schiphol
$737Delta
Mon, Dec 7 - Fri, Dec 11
KLM Logo
1:20 pm - 10:30 amPDX  Portland-OPO Porto
13h 10m1 stop Amsterdam Schiphol
KLM Logo
5:00 am - 11:20 amOPO  Porto-PDX Portland
14h 20m1 stop Amsterdam Schiphol
$737KLM
Mon, Feb 1 - Wed, Feb 24
United Airlines Logo
5:00 am - 3:20 pmEUG  Eugene-OPO Porto
26h 20m2 stops Denver Intl Frankfurt am Main
United Airlines Logo
6:00 am - 11:20 pmOPO  Porto-EUG Eugene
25h 20m2 stops Frankfurt am Main San Francisco
$737United Airlines
Mon, Jan 11 - Thu, Jan 14
United Airlines Logo
5:00 am - 3:20 pmEUG  Eugene-OPO Porto
26h 20m3 stops Denver Intl Houston George Bush Intcntl Frankfurt am Main
United Airlines Logo
6:00 am - 9:38 pmOPO  Porto-EUG Eugene
23h 38m2 stops Frankfurt am Main Denver Intl
$737United Airlines
Mon, Jan 11 - Thu, Jan 14
Delta Logo
6:04 am - 10:35 amPDX  Portland-OPO Porto
20h 31m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle
Delta Logo
5:00 am - 11:20 amOPO  Porto-PDX Portland
14h 20m1 stop Amsterdam Schiphol
$737Delta
Mon, Feb 1 - Wed, Feb 24
Delta Logo
6:04 am - 10:35 amPDX  Portland-OPO Porto
20h 31m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle
Delta Logo
5:00 am - 6:43 pmOPO  Porto-PDX Portland
21h 43m2 stops Amsterdam Schiphol Seattle/Tacoma Intl
$747Delta
Mon, Feb 1 - Wed, Feb 24
American Airlines Logo
5:00 am - 7:40 amPDX  Portland-OPO Porto
18h 40m2 stops Dallas/Fort Worth Madrid Barajas
American Airlines Logo
8:40 pm - 11:05 amOPO  Porto-PDX Portland
22h 25m2 stops Madrid Barajas Dallas/Fort Worth
$754American Airlines
Tue, Nov 24 - Wed, Dec 2
Multiple Airlines Logo
6:00 am - 7:40 amPDX  Portland-OPO Porto
17h 40m2 stops Dallas/Fort Worth Madrid Barajas
Multiple Airlines Logo
4:40 pm - 12:54 pmOPO  Porto-PDX Portland
28h 14m2 stops Madrid Barajas Dallas/Fort Worth
$754Multiple Airlines
Tue, Nov 24 - Wed, Dec 2
KLM Logo
7:05 am - 9:05 amPDX  Portland-OPO Porto
18h 00m1 stop New York John F Kennedy Intl
KLM Logo
5:00 am - 11:20 amOPO  Porto-PDX Portland
14h 20m1 stop Amsterdam Schiphol
$823KLM
Wed, Nov 25 - Mon, Nov 30

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United Airlines flights from Oregon to Porto

Our best United Airlines deals on Oregon to Porto flight tickets
United Airlines
Jan 11
EUG5:00 amEugene
26h 20m
3 stops
OPO3:20 pmPorto
Jan 14
OPO6:00 amPorto
23h 38m
2 stops
EUG9:38 pmEugene
$737
United Airlines
Dec 7
PDX10:45 amPortland
14h 45m
2 stops
OPO9:30 amPorto
Dec 11
OPO12:35 pmPorto
16h 46m
1 stop
PDX9:21 pmPortland
$755
United Airlines
Nov 12
EUG5:00 amEugene
20h 30m
3 stops
OPO9:30 amPorto
Nov 18
OPO12:35 pmPorto
32h 50m
3 stops
EUG1:25 pmEugene
$781

British Airways flights from Oregon to Porto

Our best British Airways deals on Oregon to Porto flight tickets
British Airways
Oct 25
PDX11:58 amPortland
21h 47m
2 stops
OPO4:45 pmPorto
Nov 3
OPO8:20 amPorto
19h 27m
2 stops
PDX7:47 pmPortland
$790
British Airways
Oct 25
PDX1:12 pmPortland
20h 33m
2 stops
OPO4:45 pmPorto
Nov 2
OPO12:25 pmPorto
37h 23m
2 stops
PDX5:48 pmPortland
$842

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 August 9, 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 Portland - OPO Porto

PDXOPO

Portland

Mon 12/7

8:45 am-12:50 pm

2 stops20h 05m

Porto

Fri 12/11

6:00 am-11:12 pm

2 stops25h 12m

$726

PortlandPorto

PDX Portland - OPO Porto

PDXOPO

Portland

Mon 12/7

6:15 am-10:35 am

2 stops20h 20m

Porto

Fri 12/11

5:00 am-11:20 am

1 stop14h 20m

$737
Quickest round-trip

PortlandPorto

PDX Portland - OPO Porto

PDXOPO

Portland

Mon 2/1

1:20 pm-10:30 am

1 stop13h 10m

Porto

Wed 2/24

5:00 am-11:20 am

1 stop14h 20m

$737

EugenePorto

EUG Eugene - OPO Porto

EUGOPO

Eugene

Mon 1/11

5:00 am-3:20 pm

2 stops26h 20m

Porto

Thu 1/14

6:00 am-11:20 pm

2 stops25h 20m

$737

EugenePorto

EUG Eugene - OPO Porto

EUGOPO

Eugene

Mon 1/11

5:00 am-3:20 pm

3 stops26h 20m

Porto

Thu 1/14

6:00 am-9:38 pm

2 stops23h 38m

$737

PortlandPorto

PDX Portland - OPO Porto

PDXOPO

Portland

Mon 2/1

6:04 am-10:35 am

2 stops20h 31m

Porto

Wed 2/24

5:00 am-11:20 am

1 stop14h 20m

$737

PortlandPorto

PDX Portland - OPO Porto

PDXOPO

Portland

Mon 2/1

6:04 am-10:35 am

2 stops20h 31m

Porto

Wed 2/24

5:00 am-6:43 pm

2 stops21h 43m

$747

PortlandPorto

PDX Portland - OPO Porto

PDXOPO

Portland

Tue 11/24

5:00 am-7:40 am

2 stops18h 40m

Porto

Wed 12/2

8:40 pm-11:05 am

2 stops22h 25m

$754

PortlandPorto

PDX Portland - OPO Porto

PDXOPO

Portland

Tue 11/24

6:00 am-7:40 am

2 stops17h 40m

Porto

Wed 12/2

4:40 pm-12:54 pm

2 stops28h 14m

$754

PortlandPorto

PDX Portland - OPO Porto

PDXOPO

Portland

Wed 11/25

7:05 am-9:05 am

1 stop18h 00m

Porto

Mon 11/30

5:00 am-11:20 am

1 stop14h 20m

$823

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.

Can stopping save me money on Oregon to Porto flights?

You could potentially save up to 39% 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

14h 45m

Direct flights

None
The fastest flight from Oregon to Porto takes 14h 45m
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
7.8
8,504 reviews
Search Delta flights
KLMPriceFrom $498Free CancellationRating
7.8
1,555 reviews
Search KLM flights
United AirlinesPriceFrom $502Free CancellationRating
7.4
10,089 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
Pinhao
Esposende
Lamego
Chaves
Arcos de Valdevez
Guimarães
Viseu
Espinho
Ponte de Lima
Mesao Frio
Penafiel
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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