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>

$248 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

Wed, Oct 29 - Wed, Nov 12

5:45 pm - 7:40 amBOS-OPO

9h 55m1 stop

8:20 am - 3:15 pmOPO-BOS

11h 55m1 stop

$370Iberia

Find Deal

Wed, Dec 3 - Thu, Dec 11

4:45 pm - 7:40 amBOS-OPO

9h 55m1 stop

8:45 am - 8:55 pmOPO-BOS

17h 10m1 stop

$372Iberia

Find Deal

Mon, Nov 10 - Wed, Nov 19

6:45 pm - 10:50 amBOS-OPO

11h 05m1 stop

11:45 am - 7:25 amOPO-BOS

24h 40m2 stops

$403Delta

Find Deal

Wed, Aug 20 - Wed, Nov 12

10:35 am - 7:35 amBOS-OPO

16h 00m2 stops

8:20 am - 7:50 pmOPO-BOS

16h 30m1 stop

$404American Airlines

Find Deal

Wed, Nov 12 - Wed, Nov 19

10:00 am - 10:50 amBOS-OPO

19h 50m2 stops

11:45 am - 7:25 amOPO-BOS

24h 40m2 stops

$407Delta

Find Deal

Wed, Aug 20 - Wed, Nov 12

10:35 am - 7:35 amBOS-OPO

16h 00m2 stops

12:25 pm - 11:44 pmOPO-BOS

16h 19m2 stops

$414American Airlines

Find Deal

Wed, Aug 20 - Tue, Oct 14

6:55 pm - 3:30 pmBOS-OPO

15h 35m1 stop

6:50 pm - 4:30 pmOPO-BOS

26h 40m1 stop

$443KLM

Find Deal

Wed, Aug 20 - Wed, Oct 15

6:55 pm - 3:30 pmBOS-OPO

15h 35m1 stop

8:10 pm - 4:30 pmOPO-BOS

25h 20m1 stop

$446KLM

Find Deal

Tue, Aug 12 - Wed, Aug 20

4:30 pm - 7:35 amBOS-OPO

10h 05m1 stop

8:20 pm - 10:59 pmOPO-BOS

31h 39m2 stops

$461British Airways

Find Deal

Mon, Sep 8 - Mon, Sep 29

9:20 pm - 3:55 pmBOS-OPO

13h 35m1 stop

9:10 pm - 10:50 pmOPO-BOS

30h 40m2 stops

$486British Airways

Find Deal

Useful Info

Low season	February
High season	July
Cheapest flight	$248

Best time to beat the crowds with an average 24% 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

Baiao

Santa Maria da Feira

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

$248 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