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>

$203 CHEAP FLIGHTS from Maine to Porto

OPO

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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

Tue, Nov 11 - Tue, Nov 18

9:55 pm - 11:15 amBOS-OPO

32h 20m1 stop

12:05 pm - 8:20 pmOPO-BOS

13h 15m1 stop

$351SWISS

Find Deal

Wed, Nov 19 - Wed, Nov 26

8:40 pm - 1:10 pmBOS-OPO

11h 30m1 stop

6:00 am - 1:25 pmOPO-BOS

12h 25m1 stop

$353Lufthansa

Find Deal

Mon, Dec 29 - Tue, Jan 13

8:40 pm - 12:50 pmBOS-OPO

11h 10m1 stop

12:05 pm - 8:20 pmOPO-BOS

13h 15m1 stop

$355

Find Deal

Wed, Nov 19 - Wed, Nov 26

8:40 pm - 1:10 pmBOS-OPO

11h 30m1 stop

6:00 am - 1:25 pmOPO-BOS

12h 25m1 stop

$356Lufthansa

Find Deal

Tue, Nov 11 - Tue, Nov 18

4:20 pm - 9:30 amBOS-OPO

12h 10m1 stop

12:05 pm - 8:20 pmOPO-BOS

13h 15m1 stop

$368

Find Deal

Tue, Oct 21 - Tue, Nov 4

9:20 pm - 3:55 pmBOS-OPO

13h 35m1 stop

8:20 am - 3:15 pmOPO-BOS

11h 55m1 stop

$370British Airways

Find Deal

Tue, Jan 6 - Tue, Jan 20

10:40 pm - 9:15 pmBOS-OPO

17h 35m1 stop

8:45 am - 8:55 pmOPO-BOS

17h 10m1 stop

$371Iberia

Find Deal

Mon, Oct 20 - Thu, Nov 6

11:00 pm - 9:20 pmBOS-OPO

17h 20m1 stop

8:20 am - 3:15 pmOPO-BOS

11h 55m1 stop

$374Iberia

Find Deal

Sat, Nov 8 - Tue, Nov 18

1:39 pm - 9:30 amBOS-OPO

14h 51m1 stop

12:35 pm - 9:34 pmOPO-BOS

13h 59m1 stop

$388United Airlines

Find Deal

Wed, Aug 13 - Tue, Sep 9

5:50 am - 9:20 amBOS-OPO

22h 30m1 stop

12:50 pm - 2:13 pmOPO-BOS

30h 23m2 stops

$396United Airlines

Find Deal

Useful Info

Low season	February
High season	July
Cheapest flight	$203

Best time to beat the crowds with an average 23% drop in price.

Most popular time to fly with an average 25% 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

Viseu

Esposende

Arcos de Valdevez

Ponte de Lima

Santa Maria da Feira

Baiao

Amares

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)

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.

OPO

$203 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