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

Iberia, British Airways, and American Airlines 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.

$413 Cheap Flights from Porto to Baltimore in 2025/26

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

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One-way

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Cheap round-trip flights

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6:00 am - 9:59 amOPO-BWI

32h 59m2 stops

10:56 am - 9:30 amBWI-OPO

17h 34m2 stops

$615United Airlines

Find Deal

Fri, Nov 14 - Thu, Nov 20

6:35 am - 7:02 pmOPO-BWI

17h 27m2 stops

5:36 pm - 3:25 pmBWI-OPO

16h 49m2 stops

$655Delta

Find Deal

Thu, Dec 18 - Tue, Dec 30

12:35 pm - 9:59 amOPO-BWI

26h 24m2 stops

6:15 am - 11:40 amBWI-OPO

24h 25m2 stops

$656United Airlines

Find Deal

Mon, Nov 24 - Mon, Dec 1

11:20 am - 11:04 pmOPO-BWI

16h 44m2 stops

6:59 pm - 3:25 pmBWI-OPO

15h 26m2 stops

$707KLM

Find Deal

Fri, Dec 19 - Tue, Dec 30

11:20 am - 11:03 pmOPO-BWI

16h 43m2 stops

2:00 pm - 10:30 amBWI-OPO

15h 30m2 stops

$735KLM

Find Deal

Thu, Dec 18 - Wed, Dec 31

4:55 pm - 6:45 pmOPO-BWI

30h 50m1 stop

8:35 pm - 7:00 pmBWI-OPO

17h 25m1 stop

$799British Airways

Find Deal

Thu, Dec 11 - Fri, Dec 26

8:20 am - 7:30 pmOPO-BWI

16h 10m2 stops

9:30 pm - 8:20 pmBWI-OPO

17h 50m1 stop

$961Multiple Airlines

Find Deal

Sat, Nov 22 - Sun, Apr 5

11:35 am - 3:50 pmOPO-BWI

33h 15m3 stops

7:30 am - 11:50 amBWI-OPO

23h 20m3 stops

$1,003Multiple Airlines

Find Deal

Fri, Nov 14 - Thu, Nov 20

8:20 am - 7:25 pmOPO-BWI

16h 05m2 stops

8:35 pm - 7:00 pmBWI-OPO

17h 25m1 stop

$1,008British Airways

Find Deal

Thu, Dec 11 - Fri, Dec 26

8:20 am - 6:45 pmOPO-BWI

15h 25m2 stops

8:35 pm - 4:00 pmBWI-OPO

14h 25m2 stops

$1,163Iberia

Find Deal

Wed, Dec 24 - Sat, Jan 3

Delta flights from Porto to Baltimore

Our best Delta deals on Porto to Baltimore flight tickets

Delta

Nov 1

OPO6:00 amPorto

21h 02m

2 stops

BWI11:02 pmBaltimore/Washington

Nov 5

BWI5:00 pmBaltimore/Washington

17h 25m

2 stops

OPO3:25 pmPorto

$646

Find similar

Delta

Dec 18

OPO6:35 amPorto

17h 27m

2 stops

BWI7:02 pmBaltimore/Washington

Dec 30

BWI5:36 pmBaltimore/Washington

16h 49m

2 stops

OPO3:25 pmPorto

$655

Find similar

Delta

Dec 19

OPO11:20 amPorto

16h 44m

2 stops

BWI11:04 pmBaltimore/Washington

Dec 31

BWI12:34 pmBaltimore/Washington

16h 56m

2 stops

OPO10:30 amPorto

$657

Find similar

KLM flights from Porto to Baltimore

Our best KLM deals on Porto to Baltimore flight tickets

KLM

Dec 19

OPO11:20 amPorto

16h 44m

2 stops

BWI11:04 pmBaltimore/Washington

Dec 30

BWI6:59 pmBaltimore/Washington

15h 26m

2 stops

OPO3:25 pmPorto

$707

Find similar

KLM

Dec 18

OPO11:20 amPorto

16h 43m

2 stops

BWI11:03 pmBaltimore/Washington

Dec 31

BWI2:00 pmBaltimore/Washington

15h 30m

2 stops

OPO10:30 amPorto

$735

Find similar

KLM

Nov 24

OPO6:30 amPorto

17h 33m

2 stops

BWI7:03 pmBaltimore/Washington

Dec 1

BWI7:27 pmBaltimore/Washington

14h 58m

2 stops

OPO3:25 pmPorto

$863

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortoBaltimore

OPO - BWI

OPOBWI

Porto

Fri 11/14

6:00 am-9:59 am

2 stops32h 59m

Baltimore/Washington

Thu 11/20

10:56 am-9:30 am

2 stops17h 34m

$615

PortoBaltimore

OPO - BWI

OPOBWI

Porto

Thu 12/18

6:35 am-7:02 pm

2 stops17h 27m

Baltimore/Washington

Tue 12/30

5:36 pm-3:25 pm

2 stops16h 49m

$655

PortoBaltimore

OPO - BWI

OPOBWI

Porto

Mon 11/24

12:35 pm-9:59 am

2 stops26h 24m

Baltimore/Washington

Mon 12/1

6:15 am-11:40 am

2 stops24h 25m

$656

PortoBaltimore

OPO - BWI

OPOBWI

Porto

Fri 12/19

11:20 am-11:04 pm

2 stops16h 44m

Baltimore/Washington

Tue 12/30

6:59 pm-3:25 pm

2 stops15h 26m

$707

PortoBaltimore

OPO - BWI

OPOBWI

Porto

Thu 12/18

11:20 am-11:03 pm

2 stops16h 43m

Baltimore/Washington

Wed 12/31

2:00 pm-10:30 am

2 stops15h 30m

$735

PortoBaltimore

OPO - BWI

OPOBWI

Porto

Thu 12/11

4:55 pm-6:45 pm

1 stop30h 50m

Baltimore/Washington

Fri 12/26

8:35 pm-7:00 pm

1 stop17h 25m

$799

PortoBaltimore

OPO - BWI

OPOBWI

Porto

Sat 11/22

8:20 am-7:30 pm

2 stops16h 10m

Baltimore/Washington

Sun 4/5

9:30 pm-8:20 pm

1 stop17h 50m

$961

PortoBaltimore

OPO - BWI

OPOBWI

Porto

Fri 11/14

11:35 am-3:50 pm

3 stops33h 15m

Baltimore/Washington

Thu 11/20

7:30 am-11:50 am

3 stops23h 20m

$1,003

PortoBaltimore

OPO - BWI

OPOBWI

Porto

Thu 12/11

8:20 am-7:25 pm

2 stops16h 05m

Baltimore/Washington

Fri 12/26

8:35 pm-7:00 pm

1 stop17h 25m

$1,008

PortoBaltimore

OPO - BWI

OPOBWI

Porto

Wed 12/24

8:20 am-6:45 pm

2 stops15h 25m

Baltimore/Washington

Sat 1/3

8:35 pm-4:00 pm

2 stops14h 25m

$1,163

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 36% 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 15h 25m.
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.