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>

$245 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

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

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

Cheapest round-trip

$351

Overall average: $539

TAP AIR PORTUGAL

Tue 3/24Mon 4/13

BOS - OPO • 1 stop

Cheapest non-stop

$559

TAP AIR PORTUGAL

Mon 3/30Mon 4/6

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

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

Tue, Mar 24 - Mon, Apr 13

7:05 pm - 1:10 pm

BOS

OPO

14h 05m

1 stop

9:00 am - 2:40 pm

OPO

BOS

10h 40m

1 stop

$351TAP AIR PORTUGAL

Tue, May 5 - Tue, May 12

10:45 pm - 12:40 am

BOS

OPO

20h 55m

1 stop

11:00 am - 8:05 pm

OPO

BOS

14h 05m

1 stop

$357TAP AIR PORTUGAL

Sun, Mar 29 - Sun, Apr 5

10:45 pm - 7:00 pm

BOS

OPO

15h 15m

1 stop

5:05 am - 8:45 pm

OPO

BOS

20h 40m

1 stop

$361TAP AIR PORTUGAL

Mon, Feb 23 - Thu, Mar 12

12:35 pm - 9:30 am

BOS

OPO

15h 55m

2 stops

12:35 pm - 2:31 pm

OPO

BOS

29h 56m

2 stops

$367United Airlines

Sun, Feb 22 - Tue, Mar 3

1:55 pm - 9:30 am

BOS

OPO

14h 35m

1 stop

12:35 pm - 10:55 am

OPO

BOS

27h 20m

1 stop

$371United Airlines

Sun, Feb 22 - Mon, Mar 2

6:15 am - 6:30 pm

BOS

OPO

31h 15m

2 stops

7:20 pm - 9:32 am

OPO

BOS

43h 12m

2 stops

$372Multiple Airlines

Sun, Mar 22 - Tue, Mar 31

3:35 pm - 12:05 pm

BOS

OPO

16h 30m

2 stops

6:20 am - 5:40 pm

OPO

BOS

16h 20m

1 stop

$376Multiple Airlines

Fri, Jul 10 - Fri, Jul 17

2:35 pm - 6:15 pm

PWM

OPO

22h 40m

2 stops

12:25 pm - 1:21 pm

OPO

PWM

29h 56m

1 stop

$1,101Delta

Sat, Jul 11 - Fri, Jul 17

4:50 pm - 10:30 am

PWM

OPO

36h 40m

2 stops

12:25 pm - 1:21 pm

OPO

PWM

29h 56m

1 stop

$1,163Delta

Sat, Jul 11 - Sat, Jul 18

2:18 pm - 6:00 pm

PWM

OPO

22h 42m

2 stops

12:15 pm - 11:36 pm

OPO

PWM

16h 21m

2 stops

$1,174Royal Air Maroc

Useful Info

Low season	November
High season	July
Cheapest flight	$245

Best time to beat the crowds with an average 17% drop in price.

Most popular time to fly with an average 22% 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

Arcos de Valdevez

Espinho

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

$206 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