$344 Find Cheap Flights from Porto to Maryland

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Porto to Maryland departing on 10/13. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Porto to Maryland, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Porto to Maryland, as well as popular online travel agencies
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Flight Deals

Book Cheap Porto to Maryland Plane Tickets

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

Recent round-trip flight deals from Porto to Maryland

Thu, Nov 19 - Wed, Dec 30
Multiple Airlines Logo
8:20 am - 4:20 pm
OPO
-
IAD
13h 00m
1 stop
Multiple Airlines Logo
5:50 pm - 4:00 pm
IAD
-
OPO
17h 10m
1 stop
$622Multiple Airlines
Thu, Dec 3 - Sat, Dec 5
American Airlines Logo
8:20 am - 4:46 pm
OPO
-
BWI
37h 26m
2 stops
American Airlines Logo
5:47 pm - 11:45 am
BWI
-
OPO
36h 58m
2 stops
$625American Airlines
Thu, Nov 19 - Wed, Dec 30
Delta Logo
5:00 am - 7:12 pm
OPO
-
DCA
19h 12m
2 stops
Delta Logo
1:30 pm - 10:35 am
DCA
-
OPO
16h 05m
2 stops
$636Delta
Thu, Nov 19 - Wed, Dec 30
Delta Logo
5:00 am - 7:10 pm
OPO
-
IAD
19h 10m
2 stops
Delta Logo
4:55 pm - 9:05 am
IAD
-
OPO
11h 10m
1 stop
$639Delta
Wed, Nov 18 - Wed, Dec 30
Iberia Logo
8:20 am - 4:20 pm
OPO
-
IAD
13h 00m
1 stop
Iberia Logo
5:50 pm - 4:00 pm
IAD
-
OPO
17h 10m
1 stop
$657Iberia
Wed, Nov 18 - Fri, Jan 1
Iberia Logo
8:20 am - 4:20 pm
OPO
-
IAD
13h 00m
1 stop
Iberia Logo
5:50 pm - 8:00 pm
IAD
-
OPO
21h 10m
1 stop
$665Iberia
Fri, Nov 20 - Thu, Dec 31
TAP AIR PORTUGAL Logo
10:30 am - 8:35 pm
OPO
-
IAD
15h 05m
1 stop
TAP AIR PORTUGAL Logo
5:25 pm - 10:00 am
IAD
-
OPO
11h 35m
1 stop
$672TAP AIR PORTUGAL
Thu, Nov 19 - Wed, Dec 30
United Airlines Logo
6:00 am - 5:23 pm
OPO
-
DCA
16h 23m
2 stops
United Airlines Logo
3:00 pm - 9:30 am
DCA
-
OPO
13h 30m
1 stop
$694United Airlines
Wed, Nov 18 - Mon, Dec 28
United Airlines Logo
6:00 am - 3:55 pm
OPO
-
IAD
14h 55m
1 stop
United Airlines Logo
5:20 pm - 9:30 am
IAD
-
OPO
11h 10m
1 stop
$694United Airlines
Sun, Aug 2 - Sun, Aug 9
TAP AIR PORTUGAL Logo
6:00 pm - 8:30 am
OPO
-
PHL
19h 30m
1 stop
TAP AIR PORTUGAL Logo
8:28 am - 10:30 am
PHL
-
OPO
21h 02m
1 stop
$937TAP AIR PORTUGAL
Booking Insights

KAYAK's insights & trends for Porto to Maryland flights

Get data-powered insights and trends into flights from Porto to Maryland to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Porto to Maryland?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 5 days.

In the past 5 days, the cheapest round-trip tickets from Porto to Maryland were found on American Airlines ($625) and Delta ($713).

Find deals

Good to know

Low seasonMarch
Cheapest flight$344
Best time to beat the crowds with an average 26% drop in price.
Most popular time to fly with an average 6% increase in price.
Flight from Porto to Washington Dulles Airport

FAQs - booking Maryland flights

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

    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 Porto to Maryland.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Porto to Maryland?

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

    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 from Porto to Maryland with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Porto to Maryland?

    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 from Porto to Maryland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Porto to Maryland

Information on your arrival and departure airports

Porto (OPO)