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>

$249 CHEAP FLIGHTS from Maryland to Porto

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Cheap Flights from Maryland to Porto

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Maryland 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

Recent round-trip flight deals from Maryland to Porto

Tue, Oct 7 - Mon, Oct 13

9:35 am - 3:00 pmIAD-OPO

24h 25m2 stops

9:20 am - 1:30 pmOPO-IAD

33h 10m2 stops

$472

Find Deal

Mon, Sep 1 - Sun, Sep 7

5:45 pm - 3:05 pmIAD-OPO

16h 20m2 stops

10:35 pm - 8:50 pmOPO-IAD

27h 15m2 stops

$498

Find Deal

Wed, Sep 3 - Fri, Sep 19

5:50 pm - 9:00 amIAD-OPO

10h 10m1 stop

9:00 am - 3:20 pmOPO-IAD

11h 20m1 stop

$500TAP AIR PORTUGAL

Find Deal

Sun, Sep 21 - Thu, Oct 2

10:20 pm - 5:00 pmIAD-OPO

13h 40m1 stop

10:00 am - 8:50 pmOPO-IAD

15h 50m1 stop

$502TAP AIR PORTUGAL

Find Deal

Tue, Nov 11 - Tue, Nov 18

11:00 am - 11:15 amDCA-OPO

19h 15m2 stops

6:00 am - 7:57 pmOPO-DCA

18h 57m2 stops

$502Air Canada

Find Deal

Tue, Nov 11 - Tue, Nov 18

5:15 pm - 2:45 pmIAD-OPO

16h 30m1 stop

12:30 pm - 3:55 pmOPO-IAD

32h 25m2 stops

$512United Airlines

Find Deal

Tue, Nov 11 - Tue, Nov 18

6:00 pm - 11:40 amIAD-OPO

12h 40m1 stop

4:15 pm - 3:50 pmOPO-IAD

28h 35m1 stop

$520Lufthansa

Find Deal

Wed, Nov 12 - Sun, Nov 16

11:10 pm - 11:45 pmIAD-OPO

19h 35m1 stop

6:00 am - 3:50 pmOPO-IAD

14h 50m1 stop

$547Lufthansa

Find Deal

Mon, Dec 1 - Sun, Dec 7

11:00 am - 11:15 amDCA-OPO

19h 15m2 stops

6:00 am - 8:57 amOPO-DCA

31h 57m2 stops

$552Air Canada

Find Deal

Wed, Nov 12 - Sun, Nov 16

10:00 pm - 3:25 pmIAD-OPO

12h 25m1 stop

6:00 am - 8:15 pmOPO-IAD

19h 15m1 stop

$552United Airlines

Find Deal

Useful Info

Low season	February
High season	July
Cheapest flight	$249

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 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

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

Return flight deals

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

$249 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

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