How many flights depart from Maine to Porto on average per week?

The number of flights available between Maine and Porto is 4 per week as of August 2025. The most frequent departure day is Mon, with 25% of weekly flights leaving on this day.

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

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

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

As of August 2025, there are 11 operators available to choose from for flights from Maine to Porto Airport.

How old do you have to be to fly from Maine 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 Maine 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.

$151 Cheap Flights from Maine to Porto in 2025

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Find the cheapest flights from Maine to Porto

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

4:30 pm - 7:35 amBOS-OPO

10h 05m1 stop

8:20 am - 3:15 pmOPO-BOS

11h 55m1 stop

$340

Find Deal

Tue, Oct 21 - Tue, Nov 4

9:20 pm - 11:40 amBOS-OPO

9h 20m1 stop

12:25 pm - 7:50 pmOPO-BOS

12h 25m1 stop

$341Iberia

Find Deal

Wed, Oct 22 - Wed, Nov 5

11:00 pm - 9:20 pmBOS-OPO

17h 20m1 stop

8:20 am - 3:15 pmOPO-BOS

11h 55m1 stop

$344Iberia

Find Deal

Mon, Oct 20 - Thu, Nov 6

9:20 pm - 3:55 pmBOS-OPO

13h 35m1 stop

12:20 pm - 7:50 pmOPO-BOS

12h 30m1 stop

$364British Airways

Find Deal

Tue, Oct 14 - Tue, Oct 21

9:20 pm - 3:55 pmBOS-OPO

13h 35m1 stop

12:20 pm - 7:50 pmOPO-BOS

12h 30m1 stop

$365British Airways

Find Deal

Tue, Oct 14 - Tue, Oct 21

9:50 pm - 6:35 pmBOS-OPO

15h 45m1 stop

12:05 pm - 8:20 pmOPO-BOS

13h 15m1 stop

$373SWISS

Find Deal

Wed, Nov 5 - Tue, Nov 11

9:40 am - 9:30 amBOS-OPO

18h 50m2 stops

12:35 pm - 11:42 pmOPO-BOS

16h 07m2 stops

$378United Airlines

Find Deal

Wed, Nov 5 - Thu, Nov 13

4:19 pm - 9:30 amBOS-OPO

12h 11m1 stop

6:00 am - 1:25 pmOPO-BOS

12h 25m1 stop

$380United Airlines

Find Deal

Sun, Nov 23 - Thu, Dec 4

8:40 pm - 12:50 pmBOS-OPO

11h 10m1 stop

2:05 pm - 6:35 pmOPO-BOS

33h 30m1 stop

$382Lufthansa

Find Deal

Sun, Dec 28 - Thu, Jan 8

9:50 pm - 11:15 amBOS-OPO

32h 25m1 stop

12:05 pm - 8:20 pmOPO-BOS

13h 15m1 stop

$383SWISS

Find Deal

Tue, Nov 4 - Thu, Nov 13

Iberia flights from Maine to Porto

Our best Iberia deals on Maine to Porto flight tickets

Iberia

Oct 22

BOS9:20 pmBoston Logan Intl

9h 20m

1 stop

OPO11:40 amPorto

Nov 5

OPO12:25 pmPorto

12h 25m

1 stop

BOS7:50 pmBoston Logan Intl

$341

Find similar

Iberia

Oct 20

BOS11:00 pmBoston Logan Intl

17h 20m

1 stop

OPO9:20 pmPorto

Nov 6

OPO8:20 amPorto

11h 55m

1 stop

BOS3:15 pmBoston Logan Intl

$344

Find similar

Iberia

Nov 2

BOS4:45 pmBoston Logan Intl

9h 55m

1 stop

OPO7:40 amPorto

Nov 12

OPO12:25 pmPorto

12h 25m

1 stop

BOS7:50 pmBoston Logan Intl

$345

Find similar

British Airways flights from Maine to Porto

Our best British Airways deals on Maine to Porto flight tickets

British Airways

Oct 14

BOS9:20 pmBoston Logan Intl

13h 35m

1 stop

OPO3:55 pmPorto

Oct 21

OPO12:20 pmPorto

12h 30m

1 stop

BOS7:50 pmBoston Logan Intl

$364

Find similar

British Airways

Oct 14

BOS9:20 pmBoston Logan Intl

13h 35m

1 stop

OPO3:55 pmPorto

Oct 21

OPO12:20 pmPorto

12h 30m

1 stop

BOS7:50 pmBoston Logan Intl

$365

Find similar

British Airways

Oct 15

BOS9:20 pmBoston Logan Intl

9h 20m

1 stop

OPO11:40 amPorto

Oct 20

OPO12:20 pmPorto

31h 40m

1 stop

BOS3:00 pmBoston Logan Intl

$375

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Tue 10/21

4:30 pm-7:35 am

1 stop10h 05m

Porto

Tue 11/4

8:20 am-3:15 pm

1 stop11h 55m

$340

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Wed 10/22

9:20 pm-11:40 am

1 stop9h 20m

Porto

Wed 11/5

12:25 pm-7:50 pm

1 stop12h 25m

$341

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Mon 10/20

11:00 pm-9:20 pm

1 stop17h 20m

Porto

Thu 11/6

8:20 am-3:15 pm

1 stop11h 55m

$344

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Tue 10/14

9:20 pm-3:55 pm

1 stop13h 35m

Porto

Tue 10/21

12:20 pm-7:50 pm

1 stop12h 30m

$364

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Tue 10/14

9:20 pm-3:55 pm

1 stop13h 35m

Porto

Tue 10/21

12:20 pm-7:50 pm

1 stop12h 30m

$365

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Wed 11/5

9:50 pm-6:35 pm

1 stop15h 45m

Porto

Tue 11/11

12:05 pm-8:20 pm

1 stop13h 15m

$373

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Wed 11/5

9:40 am-9:30 am

2 stops18h 50m

Porto

Thu 11/13

12:35 pm-11:42 pm

2 stops16h 07m

$378

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Sun 11/23

4:19 pm-9:30 am

1 stop12h 11m

Porto

Thu 12/4

6:00 am-1:25 pm

1 stop12h 25m

$380

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Sun 12/28

8:40 pm-12:50 pm

1 stop11h 10m

Porto

Thu 1/8

2:05 pm-6:35 pm

1 stop33h 30m

$382

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Tue 11/4

9:50 pm-11:15 am

1 stop32h 25m

Porto

Thu 11/13

12:05 pm-8:20 pm

1 stop13h 15m

$383

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from 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

Airlines

Other information

What is the cheapest airline that flies from Maine to Porto?

British Airways, American Airlines, and Iberia are the most popular carriers operating from Maine to Porto

Cheap Maine to Porto flight deals and tips

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

Best Price Found	$151
Fastest flight time	6h 40m
Direct flights	Mon, Tue, Thu, Sat and Sun
Airports in Porto	1 airport

The best one-way flight to Porto from Maine in the past 72 hours is $151. The best round-trip flight deal from Maine to Porto found on momondo in the last 72 hours is $340.

The fastest flight from Maine to Porto takes 6h 40m

Direct flights go from Maine to Porto on Monday, Tuesday, Thursday, Saturday and Sunday. Airlines offering direct flights are: TAP AIR PORTUGAL and Azores Airlines.

There is 1 airport near Porto: Porto (OPO)

Search flight deals

When did momondo last update prices for flights from Maine to Porto Airport?
Prices for flights from Maine to Porto Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Maine to Porto Airport?
As of August 2025, there are 11 operators available to choose from for flights from Maine to Porto Airport.
How old do you have to be to fly from Maine 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 Maine 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.

Vila Nova de Gaia

Aveiro

Coimbra

Braga

Matosinhos

Caminha

Lamego

Guimarães

Esposende

Chaves

Arcos de Valdevez

Espinho

Viseu

Ponte de Lima

Pinhao

Santa Maria da Feira

Curia

Penafiel

Mesao Frio

Baiao

Why use momondo?

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

Finding the right flight to Porto from Maine is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Porto quick and easy, saving you time and money.

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

momondo does allow users to show only those flights to Porto from Maine which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search for Maine 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 Maine to Porto right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Porto, momondo offers a useful price alert feature which will track prices for flights to Porto from Maine and alert you when they change.

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.

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Airports servicing Portugal

Faro Airport

Lisbon Humberto Delgado Airport

Azores Airport

Madeira Airport

Algarve Airport

Cheap flights from Maine to Porto from $151

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Maine to Porto departing on 10/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Maine to Porto

Cheap round-trip flights

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Cheap direct flights

Iberia flights from Maine to Porto

Our best Iberia deals on Maine to Porto flight tickets

British Airways flights from Maine to Porto

Our best British Airways deals on Maine to Porto flight tickets

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

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How to get the cheapest flight ticket from 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 is the cheapest airline that flies from Maine to Porto?

British Airways, American Airlines, and Iberia are the most popular carriers operating from Maine to Porto

How many flights depart from Maine to Porto on average per week?

The number of flights available between Maine and Porto is 4 per week as of August 2025. The most frequent departure day is Mon, with 25% of weekly flights leaving on this day.

Cheap Maine to Porto flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Porto

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

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

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

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

Traveling to a place near Porto?

Why use momondo?

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

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

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

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

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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Portugal

Airports servicing Portugal