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Cheap flights from Portland, Maine to Porto from $1,079

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Portland, Maine to Porto

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
3:20 pm - 9:30 amPWM  Portland-OPO Porto
13h 10m1 stop Newark
United Airlines Logo
6:00 am - 9:29 pmOPO  Porto-PWM Portland
20h 29m2 stops Frankfurt am Main Chicago O'Hare Intl
$1,079United Airlines
Mon, Dec 7 - Fri, Dec 11
United Airlines Logo
9:51 am - 9:30 amPWM  Portland-OPO Porto
18h 39m2 stops Chicago O'Hare Intl Newark
United Airlines Logo
6:00 am - 7:25 pmOPO  Porto-PWM Portland
18h 25m2 stops Frankfurt am Main Newark
$1,083United Airlines
Mon, Dec 7 - Fri, Dec 11
United Airlines Logo
3:20 pm - 9:30 amPWM  Portland-OPO Porto
13h 10m1 stop Newark
United Airlines Logo
6:00 am - 9:29 pmOPO  Porto-PWM Portland
20h 29m2 stops Frankfurt am Main Chicago O'Hare Intl
$1,084United Airlines
Mon, Dec 7 - Fri, Dec 11
United Airlines Logo
3:20 pm - 9:30 amPWM  Portland-OPO Porto
13h 10m1 stop Newark
United Airlines Logo
12:35 pm - 7:25 pmOPO  Porto-PWM Portland
11h 50m1 stop Newark
$1,089United Airlines
Mon, Dec 7 - Fri, Dec 11
United Airlines Logo
9:51 am - 9:30 amPWM  Portland-OPO Porto
18h 39m2 stops Chicago O'Hare Intl Newark
United Airlines Logo
6:00 am - 11:24 pmOPO  Porto-PWM Portland
22h 24m2 stops Frankfurt am Main Newark
$1,089United Airlines
Mon, Dec 7 - Fri, Dec 11

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United Airlines flights from Portland, Maine to Porto

Our best United Airlines deals on Portland, Maine to Porto flight tickets
United Airlines
Dec 7
PWM3:20 pmPortland
13h 10m
1 stop
OPO9:30 amPorto
Dec 11
OPO6:00 amPorto
20h 29m
2 stops
PWM9:29 pmPortland
$1,079
United Airlines
Dec 7
PWM9:51 amPortland
18h 39m
2 stops
OPO9:30 amPorto
Dec 11
OPO6:00 amPorto
18h 25m
2 stops
PWM7:25 pmPortland
$1,083
United Airlines
Dec 7
PWM3:20 pmPortland
13h 10m
1 stop
OPO9:30 amPorto
Dec 11
OPO6:00 amPorto
20h 29m
2 stops
PWM9:29 pmPortland
$1,084

momondo Fare Finder

 
Use the filters below to find and compare flights from Portland, Maine to Porto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandPorto

PWM Portland - OPO Porto

PWMOPO

Portland

Mon 12/7

3:20 pm-9:30 am

1 stop13h 10m

Porto

Fri 12/11

6:00 am-9:29 pm

2 stops20h 29m

$1,079

PortlandPorto

PWM Portland - OPO Porto

PWMOPO

Portland

Mon 12/7

9:51 am-9:30 am

2 stops18h 39m

Porto

Fri 12/11

6:00 am-7:25 pm

2 stops18h 25m

$1,083

PortlandPorto

PWM Portland - OPO Porto

PWMOPO

Portland

Mon 12/7

3:20 pm-9:30 am

1 stop13h 10m

Porto

Fri 12/11

6:00 am-9:29 pm

2 stops20h 29m

$1,084
Quickest round-trip

PortlandPorto

PWM Portland - OPO Porto

PWMOPO

Portland

Mon 12/7

3:20 pm-9:30 am

1 stop13h 10m

Porto

Fri 12/11

12:35 pm-7:25 pm

1 stop11h 50m

$1,089

PortlandPorto

PWM Portland - OPO Porto

PWMOPO

Portland

Mon 12/7

9:51 am-9:30 am

2 stops18h 39m

Porto

Fri 12/11

6:00 am-11:24 pm

2 stops22h 24m

$1,089

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Porto from

How to get the cheapest flight ticket from Portland, Maine 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 airlines fly to Porto?

TAP AIR PORTUGAL, Iberia and United Airlines are the top three most popular airlines that fly to Porto from Portland, Maine according to our data. TAP AIR PORTUGAL is the first choice among our users, with 85% of people opting to fly with this airline when traveling to Porto. Keep in mind that there are 11 different airlines that fly to Porto on a routine basis, so you have a few additional options to choose from.

When to book flights from Portland, Maine to Porto

Are you open to changing your travel dates? Check out the ideal times to fly from Portland, Maine to Porto according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Portland, Maine to Porto (PWM to OPO) flight deals and tips

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

Best Price Found

$1,079

Fastest flight time

13h 10m

Direct flights

None
The best flight deal from Portland, Maine to Porto found on momondo in the last 72 hours is $1,079
The fastest flight from Portland, Maine to Porto takes 13h 10m
There are no direct flights from Portland, Maine to Porto. There are no popular flight routes from Portland, Maine to Porto.
Search flight deals

Frequently asked questions about flying from Portland, Maine to Porto

  • How far is Portland to Porto by plane?

    Porto is 3072.7 mi away from Portland. Typically, this will take 13h 10m by plane in normal conditions.

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

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

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

    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 Portland Airport to Porto Airport.

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

    The necessary travel and health documents for your Porto Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Porto?

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

Why use momondo?

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

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

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

All flight searches from Portland to Porto on momondo can be filtered to show those which offer flexible booking policies.

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

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 Portland to Porto.

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

Yes momondo offers price alerts on flights to Porto from Portland. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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