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>

$265 CHEAP FLIGHTS from Maryland 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

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

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

Cheapest round-trip

$480

Overall average: $657

TAP AIR PORTUGAL

Tue 2/24Tue 3/3

IAD - OPO • 1 stop

Cheapest one-way

$265

Typical prices: $272-$452

Air Canada

Sun 7/19

IAD - OPO • 2 stops

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 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

Tue, Feb 24 - Tue, Mar 3

5:30 pm - 6:55 pm

IAD

OPO

20h 25m

1 stop

6:55 am - 2:35 pm

OPO

IAD

12h 40m

1 stop

$480TAP AIR PORTUGAL

Wed, Feb 18 - Wed, Feb 25

12:29 pm - 10:30 am

PHL

OPO

17h 01m

2 stops

5:00 am - 7:25 pm

OPO

PHL

19h 25m

2 stops

$495Multiple Airlines

Sun, Feb 22 - Mon, Mar 9

10:30 pm - 5:00 pm

IAD

OPO

13h 30m

1 stop

8:00 pm - 3:35 pm

OPO

IAD

23h 35m

1 stop

$497TAP AIR PORTUGAL

Wed, Apr 22 - Fri, May 8

1:27 pm - 3:40 pm

PHL

OPO

21h 13m

2 stops

6:00 am - 4:05 pm

OPO

PHL

15h 05m

1 stop

$499United Airlines

Tue, Apr 14 - Fri, Apr 24

8:15 pm - 8:00 pm

PHL

OPO

18h 45m

1 stop

8:20 am - 5:35 pm

OPO

PHL

14h 15m

1 stop

$500Iberia

Wed, Feb 18 - Wed, Feb 25

7:45 pm - 11:45 am

PHL

OPO

11h 00m

1 stop

8:40 pm - 3:25 pm

OPO

PHL

23h 45m

1 stop

$509Iberia

Wed, Feb 18 - Wed, Feb 25

12:22 pm - 7:40 am

PHL

OPO

14h 18m

2 stops

8:40 pm - 3:25 pm

OPO

PHL

23h 45m

1 stop

$513American Airlines

Mon, Mar 9 - Mon, Mar 30

4:35 pm - 12:50 pm

PHL

OPO

16h 15m

2 stops

4:35 pm - 4:05 pm

OPO

PHL

28h 30m

1 stop

$521Lufthansa

Sun, May 3 - Wed, May 13

2:46 pm - 11:45 am

PHL

OPO

15h 59m

2 stops

8:20 am - 8:40 pm

OPO

PHL

17h 20m

2 stops

$544American Airlines

Sun, Apr 19 - Tue, Apr 28

6:00 pm - 9:45 am

DCA

OPO

10h 45m

1 stop

6:00 am - 8:53 am

OPO

DCA

31h 53m

2 stops

$581United Airlines

Useful Info

Low season	November
High season	July
Cheapest flight	$265

Best time to beat the crowds with an average 18% drop in price.

Most popular time to fly with an average 22% 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

Esposende

Viseu

Arcos de Valdevez

Espinho

Ponte de Lima

Caminha

Baiao

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

Return flight deals

Information on the airport you'll fly into in Porto

Porto (OPO)

OPO

$265 Find Cheap Flights from Maryland to Porto

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

Everything you should know

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

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.

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