What is the cheapest airline that flies from Porto to Baltimore/Washington?

PLAY, WorldTicket, and British Airways are the most popular carriers operating from Porto to Baltimore/Washington

When did momondo last update prices for flights from Porto Airport to Baltimore/Washington Airport?

Prices for flights from Porto Airport to Baltimore/Washington Airport are updated daily.

How old do you have to be to fly from Porto Airport to Baltimore/Washington Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Porto Airport to Baltimore/Washington Airport.

What documentation or ID do you need to fly to Baltimore/Washington Airport?

The required travel and health documents for your Baltimore/Washington Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Baltimore/Washington Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$363 Cheap Flights from Porto to Baltimore in 2025/26

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Find the cheapest flights from Porto to Washington, D.C.

Round-trip

One-way

Last minute

Cheap round-trip flights

9:20 pm - 5:40 pmOPO-BWI

25h 20m1 stop

6:50 pm - 8:20 pmBWI-OPO

20h 30m1 stop

$476PLAY

Find Deal

Thu, Oct 2 - Wed, Oct 15

9:20 pm - 5:40 pmOPO-BWI

25h 20m1 stop

6:50 pm - 8:20 pmBWI-OPO

20h 30m1 stop

$489PLAY

Find Deal

Thu, Oct 2 - Wed, Oct 15

11:35 am - 11:13 pmOPO-BWI

16h 38m2 stops

1:00 pm - 10:40 amBWI-OPO

16h 40m2 stops

$557Delta

Find Deal

Wed, Oct 15 - Wed, Oct 22

12:35 pm - 9:59 amOPO-BWI

25h 24m2 stops

10:56 am - 11:40 amBWI-OPO

19h 44m2 stops

$579United Airlines

Find Deal

Fri, Oct 31 - Mon, Nov 10

8:40 pm - 7:45 pmOPO-BWI

27h 05m2 stops

8:35 pm - 8:00 pmBWI-OPO

18h 25m2 stops

$605Iberia

Find Deal

Thu, Oct 30 - Fri, Nov 7

6:00 am - 9:55 amOPO-BWI

32h 55m2 stops

7:05 pm - 9:45 amBWI-OPO

33h 40m2 stops

$609United Airlines

Find Deal

Tue, Oct 14 - Tue, Oct 21

11:15 am - 5:26 pmOPO-BWI

34h 11m2 stops

1:00 pm - 10:30 amBWI-OPO

16h 30m2 stops

$629Delta

Find Deal

Fri, Oct 31 - Sat, Nov 8

8:40 pm - 7:45 pmOPO-BWI

27h 05m2 stops

8:35 pm - 11:45 amBWI-OPO

34h 10m2 stops

$630Iberia

Find Deal

Thu, Oct 30 - Sat, Nov 8

10:40 am - 7:45 pmOPO-BWI

14h 05m1 stop

9:35 pm - 8:35 pmBWI-OPO

18h 00m1 stop

$641British Airways

Find Deal

Sat, Oct 11 - Sat, Oct 18

9:55 am - 7:45 pmOPO-BWI

14h 50m1 stop

9:35 pm - 10:25 amBWI-OPO

31h 50m1 stop

$739British Airways

Find Deal

Thu, Oct 2 - Wed, Oct 15

PLAY flights from Porto to Baltimore

Our best PLAY deals on Porto to Baltimore flight tickets

PLAY

Oct 2

OPO9:20 pmPorto

25h 20m

1 stop

BWI5:40 pmBaltimore/Washington

Oct 15

BWI6:50 pmBaltimore/Washington

20h 30m

1 stop

OPO8:20 pmPorto

$476

Find similar

PLAY

Oct 2

OPO9:20 pmPorto

25h 20m

1 stop

BWI5:40 pmBaltimore/Washington

Oct 15

BWI6:50 pmBaltimore/Washington

20h 30m

1 stop

OPO8:20 pmPorto

$489

Find similar

PLAY

Sep 25

OPO9:20 pmPorto

25h 20m

1 stop

BWI5:40 pmBaltimore/Washington

Oct 8

BWI6:50 pmBaltimore/Washington

20h 30m

1 stop

OPO8:20 pmPorto

$535

Find similar

United Airlines flights from Porto to Baltimore

Our best United Airlines deals on Porto to Baltimore flight tickets

United Airlines

Oct 31

OPO12:35 pmPorto

25h 24m

2 stops

BWI9:59 amBaltimore/Washington

Nov 10

BWI10:56 amBaltimore/Washington

19h 44m

2 stops

OPO11:40 amPorto

$579

Find similar

United Airlines

Sep 24

OPO9:35 amPorto

17h 07m

2 stops

BWI9:42 pmBaltimore/Washington

Oct 4

BWI10:51 amBaltimore/Washington

17h 54m

2 stops

OPO9:45 amPorto

$595

Find similar

United Airlines

Oct 14

OPO6:00 amPorto

32h 55m

2 stops

BWI9:55 amBaltimore/Washington

Oct 21

BWI7:05 pmBaltimore/Washington

33h 40m

2 stops

OPO9:45 amPorto

$609

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortoBaltimore

OPO - BWI

OPOBWI

Porto

Thu 10/2

9:20 pm-5:40 pm

1 stop25h 20m

Baltimore/Washington

Wed 10/15

6:50 pm-8:20 pm

1 stop20h 30m

$476

PortoBaltimore

OPO - BWI

OPOBWI

Porto

Thu 10/2

9:20 pm-5:40 pm

1 stop25h 20m

Baltimore/Washington

Wed 10/15

6:50 pm-8:20 pm

1 stop20h 30m

$489

PortoBaltimore

OPO - BWI

OPOBWI

Porto

Wed 10/15

11:35 am-11:13 pm

2 stops16h 38m

Baltimore/Washington

Wed 10/22

1:00 pm-10:40 am

2 stops16h 40m

$557

PortoBaltimore

OPO - BWI

OPOBWI

Porto

Fri 10/31

12:35 pm-9:59 am

2 stops25h 24m

Baltimore/Washington

Mon 11/10

10:56 am-11:40 am

2 stops19h 44m

$579

PortoBaltimore

OPO - BWI

OPOBWI

Porto

Thu 10/30

8:40 pm-7:45 pm

2 stops27h 05m

Baltimore/Washington

Fri 11/7

8:35 pm-8:00 pm

2 stops18h 25m

$605

PortoBaltimore

OPO - BWI

OPOBWI

Porto

Tue 10/14

6:00 am-9:55 am

2 stops32h 55m

Baltimore/Washington

Tue 10/21

7:05 pm-9:45 am

2 stops33h 40m

$609

PortoBaltimore

OPO - BWI

OPOBWI

Porto

Fri 10/31

11:15 am-5:26 pm

2 stops34h 11m

Baltimore/Washington

Sat 11/8

1:00 pm-10:30 am

2 stops16h 30m

$629

PortoBaltimore

OPO - BWI

OPOBWI

Porto

Thu 10/30

8:40 pm-7:45 pm

2 stops27h 05m

Baltimore/Washington

Sat 11/8

8:35 pm-11:45 am

2 stops34h 10m

$630

PortoBaltimore

OPO - BWI

OPOBWI

Porto

Sat 10/11

10:40 am-7:45 pm

1 stop14h 05m

Baltimore/Washington

Sat 10/18

9:35 pm-8:35 pm

1 stop18h 00m

$641

PortoBaltimore

OPO - BWI

OPOBWI

Porto

Thu 10/2

9:55 am-7:45 pm

1 stop14h 50m

Baltimore/Washington

Wed 10/15

9:35 pm-10:25 am

1 stop31h 50m

$739

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Porto to Baltimore

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

Can stopping save me money on Porto to Baltimore flights?

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

When to book flights from Porto to Baltimore

Are you open to changing your travel dates? Check out the ideal times to fly from Porto to Baltimore according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Porto to Baltimore (OPO to BWI) flight deals and tips

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

Direct flights	None

There are no direct flights from Porto to Baltimore. There are no popular flight routes from Porto to Baltimore.

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How far is Porto to Baltimore/Washington by plane?
The straight-line distance from Porto to Baltimore/Washington is 3491.2 mi. By plane, this route typically takes 14h 05m.
When did momondo last update prices for flights from Porto Airport to Baltimore/Washington Airport?
Prices for flights from Porto Airport to Baltimore/Washington Airport are updated daily.
How old do you have to be to fly from Porto Airport to Baltimore/Washington Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Porto Airport to Baltimore/Washington Airport.
What documentation or ID do you need to fly to Baltimore/Washington Airport?
The required travel and health documents for your Baltimore/Washington Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Baltimore/Washington Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Baltimore from Porto.

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

momondo does allow users to show only those flights to Baltimore from Porto which offer a flexible booking policy as well as other useful filters and features.

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

momondo provides multiple filters to help you find the best flight to Baltimore from Porto. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are simply researching potential flights to Baltimore, momondo offers a useful price alert feature which will track prices for flights to Baltimore from Porto and alert you when they change.