Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Oregon to Porto from $317

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 9/24. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Oregon to Porto

Cheap round-trip flights

United Airlines Logo
8:30 am - 9:30 amPDX-OPO
17h 00m2 stops
United Airlines Logo
6:00 am - 12:45 amOPO-PDX
26h 45m2 stops
$593United Airlines
Find Deal
Wed, Nov 5 - Wed, Nov 19
United Airlines Logo
8:30 am - 9:30 amPDX-OPO
17h 00m2 stops
United Airlines Logo
12:35 pm - 10:10 pmOPO-PDX
17h 35m1 stop
$597United Airlines
Find Deal
Wed, Nov 5 - Wed, Nov 19
United Airlines Logo
6:52 pm - 9:30 amEUG-OPO
31h 38m3 stops
United Airlines Logo
12:30 pm - 9:38 pmOPO-EUG
41h 08m2 stops
$612United Airlines
Find Deal
Sat, Nov 1 - Wed, Jan 14
Logo
6:15 am - 3:00 pmPDX-OPO
24h 45m3 stops
Logo
7:35 am - 11:01 pmOPO-PDX
23h 26m3 stops
$642
Find Deal
Tue, Sep 16 - Tue, Sep 23
Lufthansa Logo
6:52 pm - 10:25 pmEUG-OPO
44h 33m2 stops
Lufthansa Logo
1:45 pm - 9:38 pmOPO-EUG
39h 53m2 stops
$649Lufthansa
Find Deal
Sat, Nov 1 - Wed, Jan 14
American Airlines Logo
12:30 pm - 4:00 pmPDX-OPO
19h 30m2 stops
American Airlines Logo
8:20 am - 10:19 pmOPO-PDX
21h 59m2 stops
$657American Airlines
Find Deal
Fri, Nov 28 - Fri, Dec 12
Lufthansa Logo
6:52 pm - 3:15 pmEUG-OPO
37h 23m2 stops
Lufthansa Logo
12:30 pm - 9:38 pmOPO-EUG
41h 08m2 stops
$732Lufthansa
Find Deal
Sat, Nov 1 - Tue, Jan 6
Logo
7:40 pm - 6:15 pmPDX-OPO
38h 35m2 stops
Logo
6:15 am - 9:15 amOPO-PDX
34h 00m2 stops
$745
Find Deal
Sat, Oct 18 - Sun, Oct 26
Air Canada Logo
3:25 pm - 11:25 amPDX-OPO
60h 00m2 stops
Air Canada Logo
6:00 am - 6:46 pmOPO-PDX
20h 46m2 stops
$814Air Canada
Find Deal
Wed, Sep 17 - Wed, Sep 24
Air Canada Logo
7:40 pm - 11:15 amPDX-OPO
55h 35m2 stops
Air Canada Logo
12:50 pm - 11:49 amOPO-PDX
30h 59m2 stops
$840Air Canada
Find Deal
Tue, Sep 16 - Tue, Sep 23

Delta flights from Oregon to Porto

Our best Delta deals on Oregon to Porto flight tickets
Delta
Nov 12
PDX1:25 pmPortland
25h 00m
1 stop
OPO10:25 pmPorto
Nov 16
OPO11:15 amPorto
32h 10m
1 stop
PDX11:25 amPortland
$850
Find similar
Delta
Nov 12
PDX1:25 pmPortland
13h 05m
1 stop
OPO10:30 amPorto
Nov 16
OPO11:15 amPorto
32h 10m
1 stop
PDX11:25 amPortland
$851
Find similar
Delta
Nov 28
PDX1:25 pmPortland
13h 05m
1 stop
OPO10:30 amPorto
Dec 12
OPO6:30 amPorto
24h 59m
2 stops
PDX11:29 pmPortland
$865
Find similar

Lufthansa flights from Oregon to Porto

Our best Lufthansa deals on Oregon to Porto flight tickets
Lufthansa
Nov 1
EUG6:52 pmEugene
44h 33m
2 stops
OPO10:25 pmPorto
Jan 14
OPO1:45 pmPorto
39h 53m
2 stops
EUG9:38 pmEugene
$649
Find similar
Lufthansa
Nov 1
EUG6:52 pmEugene
37h 23m
2 stops
OPO3:15 pmPorto
Jan 6
OPO12:30 pmPorto
41h 08m
2 stops
EUG9:38 pmEugene
$732
Find similar
Lufthansa
Sep 26
PDX3:25 pmPortland
34h 10m
2 stops
OPO9:35 amPorto
Oct 4
OPO6:15 amPorto
22h 51m
2 stops
PDX9:06 pmPortland
$878
Find similar

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 4, 2025.
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 11/5

8:30 am-9:30 am

2 stops17h 00m

Porto

Wed 11/19

6:00 am-12:45 am

2 stops26h 45m

$593

PortlandPorto

PDX - OPO

PDXOPO

Portland

Wed 11/5

8:30 am-9:30 am

2 stops17h 00m

Porto

Wed 11/19

12:35 pm-10:10 pm

1 stop17h 35m

$597

EugenePorto

EUG - OPO

EUGOPO

Eugene

Sat 11/1

6:52 pm-9:30 am

3 stops31h 38m

Porto

Wed 1/14

12:30 pm-9:38 pm

2 stops41h 08m

$612

PortlandPorto

PDX - OPO

PDXOPO

Portland

Tue 9/16

6:15 am-3:00 pm

3 stops24h 45m

Porto

Tue 9/23

7:35 am-11:01 pm

3 stops23h 26m

$642

EugenePorto

EUG - OPO

EUGOPO

Eugene

Sat 11/1

6:52 pm-10:25 pm

2 stops44h 33m

Porto

Wed 1/14

1:45 pm-9:38 pm

2 stops39h 53m

$649

PortlandPorto

PDX - OPO

PDXOPO

Portland

Fri 11/28

12:30 pm-4:00 pm

2 stops19h 30m

Porto

Fri 12/12

8:20 am-10:19 pm

2 stops21h 59m

$657

EugenePorto

EUG - OPO

EUGOPO

Eugene

Sat 11/1

6:52 pm-3:15 pm

2 stops37h 23m

Porto

Tue 1/6

12:30 pm-9:38 pm

2 stops41h 08m

$732

PortlandPorto

PDX - OPO

PDXOPO

Portland

Sat 10/18

7:40 pm-6:15 pm

2 stops38h 35m

Porto

Sun 10/26

6:15 am-9:15 am

2 stops34h 00m

$745

PortlandPorto

PDX - OPO

PDXOPO

Portland

Wed 9/17

3:25 pm-11:25 am

2 stops60h 00m

Porto

Wed 9/24

6:00 am-6:46 pm

2 stops20h 46m

$814

PortlandPorto

PDX - OPO

PDXOPO

Portland

Tue 9/16

7:40 pm-11:15 am

2 stops55h 35m

Porto

Tue 9/23

12:50 pm-11:49 am

2 stops30h 59m

$840

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 February is, on average, the cheapest month to fly to Porto from Oregon, with most prices found around $742. If you aren’t able to travel during the month of February, then book flights to Porto from Oregon during November instead. Flights to Porto in November, while not as cheap as those in February, still average around $794.

What is the cheapest day to depart on your flight to Porto?

The cheapest day to depart on your flight to Porto is on a Monday when prices can be found for as low as $1,088. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Wednesday because tickets tend to average around $1,428. These prices are subject to change though, so be sure to set up a Price Alert for flights to Porto.

What is the cheapest time of day to depart on your flight to Porto?

At noon is the cheapest time of day to fly from Oregon to Porto when you can find flight prices for as low as $1,088. Flying to Porto at noon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $1,278 on average. Flights to Porto from Oregon in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

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 $1,044 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 $709 on momondo.

Can stopping save me money on Oregon to Porto flights?

You could potentially save up to 12% 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

Best Price Found

$317

Fastest flight time

13h 05m

Direct flights

None

Airports in Porto

1 airport
The best one-way flight to Porto from Oregon in the past 72 hours is $317. The best round-trip flight deal from Oregon to Porto found on momondo in the last 72 hours is $593.
The fastest flight from Oregon to Porto takes 13h 05m
There are no direct flights from Oregon to Porto. Popular non-direct routes for this connection are Portland Airport - Porto Airport and Eugene Airport - Porto Airport.
There is 1 airport near Porto: Porto (OPO)
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
Air CanadaPriceFrom $658Free CancellationRating
7.1
9,879 reviews
Search Air Canada flights
United AirlinesPriceFrom $695Free CancellationRating
7.4
8,912 reviews
Search United Airlines flights
DeltaPriceFrom $704Free CancellationRating
8.0
7,987 reviews
Search Delta flights
KLMPriceFrom $731Free CancellationRating
7.8
1,381 reviews
Search KLM flights

Traveling to a place near Porto?

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

An easier way to manage your Porto trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 8/9
Sat 8/16
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Portugal