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>

$307 CHEAP FLIGHTS from Maine to Porto

OPO

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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

Wed, Oct 14 - Wed, Oct 21

10:40 am - 7:00 am

BOS

OPO

15h 20m

1 stop

12:45 pm - 8:44 am

OPO

BOS

24h 59m

2 stops

$618Air Canada

Wed, Jul 22 - Wed, Nov 11

3:35 pm - 7:00 am

BOS

OPO

10h 25m

1 stop

12:05 pm - 8:20 pm

OPO

BOS

13h 15m

1 stop

$619Multiple Airlines

Wed, Sep 9 - Sat, Sep 26

11:00 pm - 4:10 pm

BOS

OPO

12h 10m

1 stop

10:00 pm - 10:05 pm

OPO

BOS

29h 05m

1 stop

$621LEVEL

Wed, Oct 14 - Wed, Oct 28

9:35 am - 7:00 am

BOS

OPO

16h 25m

2 stops

7:20 pm - 9:37 am

OPO

BOS

42h 17m

2 stops

$622Multiple Airlines

Wed, Jul 8 - Wed, Sep 9

10:55 pm - 9:20 pm

BOS

OPO

17h 25m

1 stop

10:00 pm - 9:15 pm

OPO

BOS

28h 15m

1 stop

$625LEVEL

Mon, Sep 21 - Wed, Oct 14

5:50 am - 7:00 am

BOS

OPO

20h 10m

1 stop

6:45 pm - 3:10 pm

OPO

BOS

25h 25m

1 stop

$626Multiple Airlines

Mon, Sep 28 - Wed, Oct 7

7:30 am - 9:45 am

BOS

OPO

21h 15m

1 stop

12:45 pm - 9:50 am

OPO

BOS

26h 05m

1 stop

$631United Airlines

Sun, Aug 9 - Tue, Aug 18

10:55 am - 6:55 am

PWM

OPO

15h 00m

1 stop

12:15 pm - 1:54 pm

OPO

PWM

30h 39m

2 stops

$954United Airlines

Sun, Aug 9 - Tue, Aug 18

5:15 am - 9:45 am

PWM

OPO

23h 30m

2 stops

12:15 pm - 1:54 pm

OPO

PWM

30h 39m

2 stops

$958United Airlines

Tue, May 12 - Mon, Jun 8

11:08 am - 9:15 am

PWM

OPO

41h 07m

2 stops

10:10 am - 6:35 pm

OPO

PWM

37h 25m

2 stops

$1,157Austrian Airlines

Useful Info

Low season	January
High season	July
Cheapest flight	$307

Best time to beat the crowds with an average 24% drop in price.

Most popular time to fly with an average 27% 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

Santa Maria da Feira

Caminha

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

$307 Find Cheap Flights from Maine to Porto

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

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