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

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Porto from Maryland 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 Maryland 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 Maryland 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 Maryland 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 Maryland 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>

$273 CHEAP FLIGHTS from Maryland to Porto

OPO

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Cheap Flights from Maryland to Porto

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

Round-trip

One-way

Last minute

Recent round-trip flight deals from Maryland to Porto

Wed, Oct 7 - Tue, Oct 13

8:30 pm - 7:45 pm

BWI

OPO

18h 15m

2 stops

6:30 am - 10:15 pm

OPO

BWI

20h 45m

2 stops

$700Multiple Airlines

Mon, Nov 9 - Tue, Nov 17

11:39 am - 9:30 am

PHL

OPO

16h 51m

2 stops

6:00 am - 4:05 pm

OPO

PHL

15h 05m

1 stop

$701United Airlines

Tue, Nov 10 - Tue, Nov 17

6:10 am - 9:30 am

PHL

OPO

22h 20m

2 stops

12:35 pm - 12:25 pm

OPO

PHL

28h 50m

2 stops

$711United Airlines

Sun, Nov 8 - Tue, Nov 17

10:15 am - 11:45 am

PHL

OPO

20h 30m

2 stops

6:00 am - 4:05 pm

OPO

PHL

15h 05m

1 stop

$716United Airlines

Mon, Nov 9 - Mon, Nov 16

1:00 pm - 11:15 am

PHL

OPO

41h 15m

2 stops

7:20 pm - 9:32 pm

OPO

PHL

31h 12m

2 stops

$723SWISS

Mon, Oct 12 - Wed, Oct 21

10:40 am - 7:00 am

PHL

OPO

39h 20m

2 stops

11:20 am - 2:43 pm

OPO

PHL

32h 23m

2 stops

$729Air Canada

Tue, Oct 13 - Thu, Oct 22

3:25 pm - 7:00 am

PHL

OPO

10h 35m

1 stop

6:20 am - 2:47 pm

OPO

PHL

37h 27m

2 stops

$730Air Canada

Wed, Nov 4 - Wed, Nov 18

8:35 pm - 5:50 pm

BWI

OPO

16h 15m

1 stop

8:40 pm - 7:30 pm

OPO

BWI

27h 50m

2 stops

$774British Airways

Wed, Nov 4 - Wed, Nov 18

8:21 pm - 5:50 pm

BWI

OPO

16h 29m

2 stops

8:40 pm - 7:30 pm

OPO

BWI

27h 50m

2 stops

$780British Airways

Wed, Oct 21 - Fri, Oct 30

6:48 am - 7:40 am

BWI

OPO

19h 52m

2 stops

8:20 am - 11:31 pm

OPO

BWI

19h 11m

2 stops

$785American Airlines

Useful Info

Low season	January
High season	July
Cheapest flight	$273

Best time to beat the crowds with an average 25% drop in price.

Most popular time to fly with an average 32% increase in price.

Flight from Washington Dulles Airport to Porto

How does KAYAK find such low prices on flights from Maryland 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 Maryland to Porto.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Maryland to Porto?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Porto from Maryland 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 Maryland 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 Maryland with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Maryland 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 Maryland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Lamego

Guimarães

Pinhao

Chaves

Viseu

Esposende

Espinho

Arcos de Valdevez

Ponte de Lima

Baiao

Santa Maria da Feira

Caminha

Mira

Penafiel

Amares

Curia

Everything you need to know for your flight to Porto

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Cabin class

Complete your trip

Direct Flights

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Origins

Other airports

Return flight deals

Information on the airport you'll fly into in Porto

Porto (OPO)

OPO

$273 Find Cheap Flights from Maryland to Porto

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

Cheap Flights from Maryland to Porto

Recent round-trip flight deals from Maryland to Porto

Recent one-way flight deals from Maryland to Porto

Recent last minute flight deals from Maryland to Porto

Good to know

FAQs for booking flights from Maryland to Porto

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 Maryland

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

Find deals for your return flight