What is the cheapest airline that flies from Porto to Maryland?

WorldTicket, Royal Air Maroc, and TAP AIR PORTUGAL are the most popular carriers operating from Porto to Maryland

When did momondo last update prices for flights from Porto Airport to Maryland?

Prices for flights from Porto Airport to Maryland are refreshed on a daily basis.

How many operators does momondo search for flights from Porto Airport to Maryland?

There is 1 operator available for flights from Porto Airport to Maryland as of July 2025.

How old do you have to be to fly from Porto Airport to Maryland?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Porto Airport to Maryland.

What documentation or ID do you need to fly to Maryland?

The travel and health documents you'll need for your trip to Maryland may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Maryland. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$337 Cheap Flights from Porto to Maryland in 2025

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Find the cheapest flights from Porto to Maryland

Round-trip

One-way

Cheap round-trip flights

9:20 pm - 5:40 pmOPO-BWI

25h 20m1 stop

6:50 pm - 8:05 pmBWI-OPO

20h 15m1 stop

$437PLAY

Find Deal

jue., sep. 4 - sáb., sep. 20

9:20 pm - 5:40 pmOPO-BWI

25h 20m1 stop

6:50 pm - 8:20 pmBWI-OPO

20h 30m1 stop

$453PLAY

Find Deal

jue., sep. 18 - mié., oct. 1

9:15 pm - 3:20 pmOPO-IAD

23h 05m1 stop

10:35 pm - 5:00 pmIAD-OPO

13h 25m1 stop

$478TAP AIR PORTUGAL

Find Deal

jue., sep. 4 - sáb., sep. 20

9:15 pm - 3:20 pmOPO-IAD

23h 05m1 stop

10:20 pm - 5:05 pmIAD-OPO

13h 45m1 stop

$482TAP AIR PORTUGAL

Find Deal

jue., sep. 18 - mié., oct. 1

6:30 am - 3:35 pmOPO-IAD

14h 05m1 stop

8:17 pm - 3:30 pmIAD-OPO

14h 13m2 stops

$551Delta

Find Deal

jue., sep. 4 - sáb., sep. 20

6:30 am - 3:35 pmOPO-IAD

14h 05m1 stop

8:17 pm - 3:30 pmIAD-OPO

14h 13m2 stops

$553Delta

Find Deal

jue., sep. 4 - sáb., sep. 20

8:20 pm - 3:35 pmOPO-IAD

24h 15m1 stop

9:20 pm - 8:25 amIAD-OPO

30h 05m1 stop

$560

Find Deal

jue., sep. 18 - mié., oct. 1

8:15 am - 7:00 pmOPO-DCA

15h 45m2 stops

6:00 pm - 11:40 amDCA-OPO

12h 40m2 stops

$563American Airlines

Find Deal

jue., sep. 4 - sáb., sep. 20

8:15 am - 3:00 pmOPO-IAD

11h 45m1 stop

4:35 pm - 7:35 amIAD-OPO

10h 00m1 stop

$564American Airlines

Find Deal

jue., sep. 18 - mié., oct. 1

6:00 am - 2:35 pmOPO-IAD

13h 35m1 stop

8:30 pm - 6:30 pmIAD-OPO

17h 00m1 stop

$566

Find Deal

lun., dic. 22 - mar., dic. 30

Iberia flights from Porto to Maryland

Our best Iberia deals on Porto to Maryland flight tickets

Iberia

Sep 18

OPO12:20 pmPorto

15h 47m

2 stops

DCA11:07 pmWashington, D.C. Reagan-National

Oct 1

DCA1:15 pmWashington, D.C. Reagan-National

13h 20m

2 stops

OPO7:35 amPorto

$600

Find similar

Iberia

Dec 24

OPO12:25 pmPorto

15h 15m

2 stops

DCA10:40 pmWashington, D.C. Reagan-National

Jan 3

DCA10:40 amWashington, D.C. Reagan-National

16h 00m

2 stops

OPO7:40 amPorto

$705

Find similar

Iberia

Nov 26

OPO8:20 amPorto

12h 15m

1 stop

PHL3:35 pmPhiladelphia

Dec 12

PHL6:35 pmPhiladelphia

12h 10m

2 stops

OPO11:45 amPorto

$798

Find similar

United Airlines flights from Porto to Maryland

Our best United Airlines deals on Porto to Maryland flight tickets

United Airlines

Sep 4

OPO12:35 pmPorto

14h 01m

1 stop

DCA9:36 pmWashington, D.C. Reagan-National

Sep 20

DCA3:29 pmWashington, D.C. Reagan-National

10h 26m

1 stop

OPO6:55 amPorto

$566

Find similar

United Airlines

Dec 24

OPO6:00 amPorto

14h 50m

1 stop

IAD3:50 pmWashington, D.C. Dulles Intl

Jan 3

IAD6:00 pmWashington, D.C. Dulles Intl

16h 05m

1 stop

OPO3:05 pmPorto

$567

Find similar

United Airlines

Dec 24

OPO6:00 amPorto

20h 15m

2 stops

IAD9:15 pmWashington, D.C. Dulles Intl

Jan 3

IAD6:00 pmWashington, D.C. Dulles Intl

16h 05m

1 stop

OPO3:05 pmPorto

$572

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortoBaltimore

OPO - BWI

OPOBWI

Porto

jue. 9/4

9:20 pm-5:40 pm

1 stop25h 20m

Baltimore/Washington

sáb. 9/20

6:50 pm-8:05 pm

1 stop20h 15m

$437

PortoBaltimore

OPO - BWI

OPOBWI

Porto

jue. 9/18

9:20 pm-5:40 pm

1 stop25h 20m

Baltimore/Washington

mié. 10/1

6:50 pm-8:20 pm

1 stop20h 30m

$453

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

jue. 9/4

9:15 pm-3:20 pm

1 stop23h 05m

Washington, D.C. Dulles Intl

sáb. 9/20

10:35 pm-5:00 pm

1 stop13h 25m

$478

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

jue. 9/18

9:15 pm-3:20 pm

1 stop23h 05m

Washington, D.C. Dulles Intl

mié. 10/1

10:20 pm-5:05 pm

1 stop13h 45m

$482

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

jue. 9/4

6:30 am-3:35 pm

1 stop14h 05m

Washington, D.C. Dulles Intl

sáb. 9/20

8:17 pm-3:30 pm

2 stops14h 13m

$551

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

jue. 9/4

6:30 am-3:35 pm

1 stop14h 05m

Washington, D.C. Dulles Intl

sáb. 9/20

8:17 pm-3:30 pm

2 stops14h 13m

$553

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

jue. 9/18

8:20 pm-3:35 pm

1 stop24h 15m

Washington, D.C. Dulles Intl

mié. 10/1

9:20 pm-8:25 am

1 stop30h 05m

$560

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

jue. 9/4

8:15 am-7:00 pm

2 stops15h 45m

Washington, D.C. Reagan-National

sáb. 9/20

6:00 pm-11:40 am

2 stops12h 40m

$563

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

jue. 9/18

8:15 am-3:00 pm

1 stop11h 45m

Washington, D.C. Dulles Intl

mié. 10/1

4:35 pm-7:35 am

1 stop10h 00m

$564

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

lun. 12/22

6:00 am-2:35 pm

1 stop13h 35m

Washington, D.C. Dulles Intl

mar. 12/30

8:30 pm-6:30 pm

1 stop17h 00m

$566

Flights are sorted by cheapest round-trip flights first.

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How to get the cheapest flight ticket from Porto to Maryland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest day to depart on your flight to Maryland?

The cheapest day to depart from Porto to Maryland is on a Thursday. Travelers who choose to depart for Maryland on a Thursday will often find tickets for as low as $616. The most expensive day to fly to Maryland is Saturday, with ticket prices averaging around $1,018.

What is the cheapest time of day to depart on your flight to Maryland?

Our most recent data shows that the best time of day to fly to Maryland is in the morning. Flights from Porto to Maryland during this time can be as low as $735. In contrast, the most expensive time of day to depart to Maryland is in the afternoon when prices are around $1,068.

Can stopping save me money on Porto to Maryland flights?

You could potentially save up to 19% on your flight if you consider stops on a Porto to Maryland flight.

Cheap Porto to Maryland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Porto to Maryland

Best Price Found	$337
Fastest flight time	11h 10m
Direct flights	None
Airports in Maryland	4 airports

The best one-way flight to Maryland from Porto in the past 72 hours is $337. The best round-trip flight deal from Porto to Maryland found on momondo in the last 72 hours is $437.

The fastest flight from Porto to Maryland takes 11h 10m

There are no direct flights from Porto to Maryland. Popular non-direct routes for this connection are Porto Airport - Baltimore/Washington Airport, Porto Airport - Philadelphia Airport and Porto Airport - Washington, D.C. Dulles Intl Airport.

There are 4 airports near Maryland: Washington, D.C. Reagan-National (DCA), Baltimore/Washington (BWI), Philadelphia (PHL), Washington, D.C. Dulles Intl (IAD)

Search flight deals

When did momondo last update prices for flights from Porto Airport to Maryland?
Prices for flights from Porto Airport to Maryland are refreshed on a daily basis.
How many operators does momondo search for flights from Porto Airport to Maryland?
There is 1 operator available for flights from Porto Airport to Maryland as of July 2025.
How old do you have to be to fly from Porto Airport to Maryland?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Porto Airport to Maryland.
What documentation or ID do you need to fly to Maryland?
The travel and health documents you'll need for your trip to Maryland may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Maryland. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Porto to Maryland?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Porto to Maryland for you.

Can I find flights from Porto to Maryland with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Porto to Maryland flights to just show those with flexible booking policies.

How can momondo help me find flights from Porto to Maryland?

Once all potential Porto to Maryland flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Porto to Maryland right now. Can momondo alert me if prices change?

Price alerts on flights to Maryland from Porto are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Maryland trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

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mar. 8/5

mar. 8/12

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Find better results for your trip to Maryland

Popular cities in Maryland

Flights to New Yorkfrom $39

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Flights to Orlandofrom $54

Flights to Las Vegasfrom $35

Flights to San Franciscofrom $49

Flights to Washington, D.C.from $49

Flights to Bostonfrom $77

Flights to Atlantafrom $29

Flights to Dallasfrom $55

Flights to Seattlefrom $93

Cheap flights from Porto to Maryland from $337

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Porto to Maryland departing on 10/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Porto to Maryland

Cheap round-trip flights

Cheap one-way flights

Iberia flights from Porto to Maryland

Our best Iberia deals on Porto to Maryland flight tickets

United Airlines flights from Porto to Maryland

Our best United Airlines deals on Porto to Maryland flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Porto to Maryland that are best for you.

See travel insights to Maryland from

How to get the cheapest flight ticket from Porto to Maryland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Maryland?

The cheapest day to depart from Porto to Maryland is on a Thursday. Travelers who choose to depart for Maryland on a Thursday will often find tickets for as low as $616. The most expensive day to fly to Maryland is Saturday, with ticket prices averaging around $1,018.

What is the cheapest time of day to depart on your flight to Maryland?

Our most recent data shows that the best time of day to fly to Maryland is in the morning. Flights from Porto to Maryland during this time can be as low as $735. In contrast, the most expensive time of day to depart to Maryland is in the afternoon when prices are around $1,068.

Can stopping save me money on Porto to Maryland flights?

You could potentially save up to 19% on your flight if you consider stops on a Porto to Maryland flight.

What is the cheapest airline that flies from Porto to Maryland?

WorldTicket, Royal Air Maroc, and TAP AIR PORTUGAL are the most popular carriers operating from Porto to Maryland

Cheap Porto to Maryland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Porto to Maryland

Best Price Found

Fastest flight time

Direct flights

Airports in Maryland

When did momondo last update prices for flights from Porto Airport to Maryland?

How many operators does momondo search for flights from Porto Airport to Maryland?

How old do you have to be to fly from Porto Airport to Maryland?

What documentation or ID do you need to fly to Maryland?

Why use momondo?

Why should I use momondo to find a flight deal from Porto to Maryland?

Can I find flights from Porto to Maryland with flexible booking policies on momondo?

How can momondo help me find flights from Porto to Maryland?

I’m not ready to book a flight from Porto to Maryland right now. Can momondo alert me if prices change?

An easier way to manage your Maryland trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Maryland

Popular cities in Maryland

Popular flights according to clicks in the last 7 days on momondo