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Cheap flights from Baltimore to Porto from $363

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Baltimore to Porto departing on 10/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Baltimore to Porto

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
9:30 pm - 8:00 pm
BWI
-
OPO
17h 30m
2 stops
Multiple Airlines Logo
8:55 pm - 5:15 pm
OPO
-
BWI
25h 20m
1 stop
$781Multiple Airlines
Mon, Sep 21 - Tue, Sep 29
British Airways Logo
9:30 pm - 8:05 pm
BWI
-
OPO
17h 35m
1 stop
British Airways Logo
8:55 pm - 5:15 pm
OPO
-
BWI
25h 20m
1 stop
$783British Airways
Mon, Sep 21 - Tue, Sep 29
Delta Logo
2:08 pm - 10:30 am
BWI
-
OPO
15h 22m
2 stops
Delta Logo
5:00 am - 6:09 pm
OPO
-
BWI
18h 09m
2 stops
$808Delta
Mon, Aug 3 - Thu, Sep 3
United Airlines Logo
6:15 am - 6:55 am
BWI
-
OPO
43h 40m
2 stops
United Airlines Logo
2:25 pm - 9:34 am
OPO
-
BWI
48h 09m
2 stops
$812United Airlines
Sat, Aug 8 - Wed, Aug 19
United Airlines Logo
8:15 am - 9:30 am
BWI
-
OPO
21h 15m
2 stops
United Airlines Logo
6:00 am - 5:13 pm
OPO
-
BWI
40h 13m
2 stops
$833United Airlines
Sun, Oct 25 - Sun, Nov 8
British Airways Logo
9:30 pm - 8:30 pm
BWI
-
OPO
18h 00m
1 stop
British Airways Logo
9:25 pm - 5:15 pm
OPO
-
BWI
24h 50m
1 stop
$843British Airways
Thu, Sep 17 - Mon, Sep 21
British Airways Logo
9:30 pm - 7:05 pm
BWI
-
OPO
16h 35m
1 stop
British Airways Logo
8:20 am - 7:26 pm
OPO
-
BWI
16h 06m
2 stops
$848British Airways
Wed, Oct 7 - Tue, Oct 13
British Airways Logo
9:30 pm - 8:05 pm
BWI
-
OPO
17h 35m
1 stop
British Airways Logo
9:25 pm - 5:15 pm
OPO
-
BWI
24h 50m
1 stop
$868British Airways
Mon, Sep 7 - Mon, Sep 21
British Airways Logo
9:35 pm - 8:35 pm
BWI
-
OPO
18h 00m
1 stop
British Airways Logo
8:55 pm - 5:15 pm
OPO
-
BWI
25h 20m
1 stop
$874British Airways
Sun, Aug 16 - Tue, Aug 25
Delta Logo
2:10 pm - 10:30 am
BWI
-
OPO
15h 20m
2 stops
Delta Logo
11:00 am - 10:55 pm
OPO
-
BWI
16h 55m
2 stops
$875Delta
Mon, Oct 12 - Mon, Nov 30

British Airways flights from Baltimore to Porto

Our best British Airways deals on Baltimore to Porto flight tickets
British Airways
Sep 21
BWI9:30 pmBaltimore/Washington
17h 35m
1 stop
OPO8:05 pmPorto
Sep 29
OPO8:55 pmPorto
25h 20m
1 stop
BWI5:15 pmBaltimore/Washington
$783
British Airways
Sep 17
BWI9:30 pmBaltimore/Washington
18h 00m
1 stop
OPO8:30 pmPorto
Sep 21
OPO9:25 pmPorto
24h 50m
1 stop
BWI5:15 pmBaltimore/Washington
$843
British Airways
Oct 7
BWI9:30 pmBaltimore/Washington
16h 35m
1 stop
OPO7:05 pmPorto
Oct 13
OPO8:20 amPorto
16h 06m
2 stops
BWI7:26 pmBaltimore/Washington
$848

Delta flights from Baltimore to Porto

Our best Delta deals on Baltimore to Porto flight tickets
Delta
Aug 3
BWI2:08 pmBaltimore/Washington
15h 22m
2 stops
OPO10:30 amPorto
Sep 3
OPO5:00 amPorto
18h 09m
2 stops
BWI6:09 pmBaltimore/Washington
$808
Delta
Oct 12
BWI2:10 pmBaltimore/Washington
15h 20m
2 stops
OPO10:30 amPorto
Nov 30
OPO11:00 amPorto
16h 55m
2 stops
BWI10:55 pmBaltimore/Washington
$875
Delta
Aug 16
BWI10:00 amBaltimore/Washington
19h 25m
2 stops
OPO10:25 amPorto
Aug 25
OPO5:00 amPorto
18h 09m
2 stops
BWI6:09 pmBaltimore/Washington
$891

momondo Fare Finder

 
Customize your flight search to find flights from Baltimore to Porto that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated May 5, 2026.
Use the filters below to find and compare flights from Baltimore to Porto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Mon 9/21

9:30 pm-8:00 pm

2 stops17h 30m

Porto

Tue 9/29

8:55 pm-5:15 pm

1 stop25h 20m

$781

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Mon 9/21

9:30 pm-8:05 pm

1 stop17h 35m

Porto

Tue 9/29

8:55 pm-5:15 pm

1 stop25h 20m

$783

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Mon 8/3

2:08 pm-10:30 am

2 stops15h 22m

Porto

Thu 9/3

5:00 am-6:09 pm

2 stops18h 09m

$808

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Sat 8/8

6:15 am-6:55 am

2 stops43h 40m

Porto

Wed 8/19

2:25 pm-9:34 am

2 stops48h 09m

$812

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Sun 10/25

8:15 am-9:30 am

2 stops21h 15m

Porto

Sun 11/8

6:00 am-5:13 pm

2 stops40h 13m

$833

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Thu 9/17

9:30 pm-8:30 pm

1 stop18h 00m

Porto

Mon 9/21

9:25 pm-5:15 pm

1 stop24h 50m

$843

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Wed 10/7

9:30 pm-7:05 pm

1 stop16h 35m

Porto

Tue 10/13

8:20 am-7:26 pm

2 stops16h 06m

$848

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Mon 9/7

9:30 pm-8:05 pm

1 stop17h 35m

Porto

Mon 9/21

9:25 pm-5:15 pm

1 stop24h 50m

$868

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Sun 8/16

9:35 pm-8:35 pm

1 stop18h 00m

Porto

Tue 8/25

8:55 pm-5:15 pm

1 stop25h 20m

$874
Quickest round-trip

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Mon 10/12

2:10 pm-10:30 am

2 stops15h 20m

Porto

Mon 11/30

11:00 am-10:55 pm

2 stops16h 55m

$875

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Porto from

How to get the cheapest flight ticket from Baltimore to Porto

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 month to fly to Porto?

The month of February is, on average, the cheapest month to fly to Porto from Baltimore, with most prices found around $0. If you aren’t able to travel during the month of February, then book flights to Porto from Baltimore during January instead. Flights to Porto in January, while not as cheap as those in February, still average around $0.

Can stopping save me money on Baltimore to Porto flights?

You could potentially save up to 16% on your flight if you consider stops on a Baltimore to Porto flight.

When to book flights from Baltimore to Porto

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

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

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

Fastest flight time

14h 50m

Direct flights

None
The fastest flight from Baltimore to Porto takes 14h 50m
There are no direct flights from Baltimore to Porto. There are no popular flight routes from Baltimore to Porto.
Search flight deals

Frequently asked questions about flying from Baltimore to Porto

  • How far is Baltimore/Washington to Porto by plane?

    The distance between Baltimore/Washington and Porto is about 3491.2 mi. Flights usually cover this in 14h 50m, depending on flying conditions and air traffic around both airports.

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

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

  • How many operators does momondo search for flights from Baltimore/Washington Airport to Porto Airport?

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

  • What documentation or ID do you need to fly to Porto Airport?

    The required travel and health documents for your Porto 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 Porto Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Baltimore to Porto?

Best airlines flying from Baltimore to Porto

Compare and see reviews for airlines that fly from Baltimore to Porto with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $529Free CancellationRating
7.9
8,459 reviews
Search Delta flights

Traveling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Vila Nova de Gaia
Coimbra
Braga
Aveiro
Matosinhos
Lamego
Esposende
Chaves
Pinhao
Guimarães
Espinho
Arcos de Valdevez
Ponte de Lima
Viseu
Curia
Penafiel
Mesao Frio
Mira
Baiao

Why use momondo?

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

It is quick and easy to find Baltimore to Porto flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Porto that suits you.

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

All flight searches from Baltimore to Porto on momondo can be filtered to show those which offer flexible booking policies.

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

Once you have performed a search for Baltimore to Porto flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

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

An easier way to manage your Porto trip

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