How does KAYAK find such low prices on flights from Maine to Porto?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Maine to Porto. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Maine to Porto?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Porto from Maine is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Maine to Porto?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Porto with an airline and back to Maine with another airline. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Maine to Porto?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Porto from Maine up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

$255 Cheap Flights from Maine to Porto

OPO

KAYAK searches hundreds of travel sites at once for deals on flights to Porto

...and more

Travelers love KAYAK

41,299,237 searches in the past 7 days on KAYAK

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Filter your dealsChoose cabin class, free Wi-Fi and more.

Cheapest round-trip

$384

Overall average: $563

TAP AIR PORTUGAL

Sun 2/1Sun 2/8

BOS - OPO • 1 stop

Cheapest non-stop

$399

TAP AIR PORTUGAL

Mon 4/6Wed 4/15

BOS - OPO • Non-stop

Start a new search

KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to Porto!

Flight Deals

Cheap Flights from Maine to Porto

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Maine to Porto that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Maine to Porto

Sun, Feb 1 - Sun, Feb 8

10:45 pm - 6:05 pm

BOS

OPO

14h 20m1 stop

9:55 am - 8:10 pm

OPO

BOS

15h 15m1 stop

$384TAP AIR PORTUGAL

Sun, Mar 8 - Wed, Mar 18

7:57 pm - 9:30 am

BOS

OPO

9h 33m1 stop

12:35 pm - 8:15 pm

OPO

BOS

11h 40m1 stop

$385United Airlines

Sun, Jan 25 - Tue, Feb 3

9:20 pm - 4:00 pm

BOS

OPO

13h 40m1 stop

8:40 pm - 3:15 pm

OPO

BOS

23h 35m1 stop

$386Multiple Airlines

Sun, Mar 29 - Fri, Apr 10

6:30 pm - 9:00 am

BOS

OPO

9h 30m1 stop

11:55 am - 8:25 pm

OPO

BOS

13h 30m1 stop

$388TAP AIR PORTUGAL

Sun, Mar 8 - Wed, Mar 18

7:57 pm - 9:30 am

BOS

OPO

9h 33m1 stop

12:35 pm - 11:57 pm

OPO

BOS

15h 22m2 stops

$389United Airlines

Tue, Feb 17 - Tue, Feb 24

12:04 pm - 7:40 am

BOS

OPO

14h 36m2 stops

8:40 pm - 3:15 pm

OPO

BOS

23h 35m1 stop

$390Iberia

Wed, Jan 14 - Wed, Jan 21

2:20 pm - 1:15 pm

BOS

OPO

17h 55m2 stops

1:45 pm - 6:57 pm

OPO

BOS

34h 12m2 stops

$391Lufthansa

Wed, Feb 11 - Wed, Feb 25

5:30 am - 1:15 pm

BOS

OPO

26h 45m2 stops

7:20 pm - 8:00 pm

OPO

BOS

29h 40m1 stop

$392Multiple Airlines

Tue, Jan 13 - Thu, Jan 22

10:10 pm - 11:15 am

BOS

OPO

32h 05m1 stop

12:05 pm - 8:20 pm

OPO

BOS

13h 15m1 stop

$394SWISS

Tue, Feb 10 - Tue, Feb 24

6:30 pm - 10:30 am

BOS

OPO

11h 00m1 stop

4:10 pm - 6:55 pm

OPO

BOS

31h 45m1 stop

$395KLM

Useful Info

Low season	February
High season	July
Cheapest flight	$255

Best time to beat the crowds with an average 18% drop in price.

Most popular time to fly with an average 20% increase in price.

Flight from Boston to Porto

How does KAYAK find such low prices on flights from Maine to Porto?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Maine to Porto.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Maine to Porto?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Porto from Maine is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Maine to Porto?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Porto with an airline and back to Maine with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Maine to Porto?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Porto from Maine up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Lamego

Guimarães

Pinhao

Chaves

Esposende

Viseu

Espinho

Arcos de Valdevez

Ponte de Lima

Baiao

Caminha

Santa Maria da Feira

Mira

Penafiel

Amares

Curia

Everything you need to know for your flight to Porto

Airports

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Information on the airport you'll fly into in Porto

Porto (OPO)

OPO

$255 Find Cheap Flights from Maine to Porto

KAYAK searches hundreds of travel sites at once for deals on flights to Porto

Everything you should know

Cheap Flights from Maine to Porto

Recent round-trip flight deals from Maine to Porto

Recent one-way flight deals from Maine to Porto

Recent last minute flight deals from Maine to Porto

Recent direct flight deals from Maine to Porto

Good to know

FAQs for booking flights from Maine to Porto

How does KAYAK find such low prices on flights from Maine to Porto?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Maine to Porto.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Maine to Porto?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Porto from Maine is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Maine to Porto?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Porto with an airline and back to Maine with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Maine to Porto?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Porto from Maine up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Traveling to a place near Porto?

Everything you need to know for your flight to Porto

Information on the airport you'll fly into in Porto

Cabin class types available on flights to Maine

Complete your trip to Porto with a hotel stay or car rental

Find direct flights for Porto

Flights to other popular destinations

Flights from domestic origins to Porto

Choose which airport to fly into in Porto