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Cheap flights from Baltimore to Porto from $276

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 10/26. 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

Logo
10:45 am - 12:05 pmBWI-OPO
20h 20m2 stops
Logo
6:00 am - 8:57 pmOPO-BWI
19h 57m2 stops
$518
Find Deal
Th. 3, Thg. 1 6 - Th. 6, Thg. 1 16
United Airlines Logo
5:19 pm - 2:55 pmBWI-OPO
40h 36m2 stops
United Airlines Logo
12:30 pm - 1:57 pmOPO-BWI
54h 27m2 stops
$536United Airlines
Find Deal
CN, Thg. 12 28 - Th. 2, Thg. 1 12
British Airways Logo
8:35 pm - 4:40 pmBWI-OPO
15h 05m1 stop
British Airways Logo
4:55 pm - 6:45 pmOPO-BWI
30h 50m1 stop
$547British Airways
Find Deal
CN, Thg. 11 30 - Th. 5, Thg. 12 18
British Airways Logo
8:35 pm - 5:35 pmBWI-OPO
16h 00m1 stop
British Airways Logo
8:20 am - 7:28 pmOPO-BWI
16h 08m2 stops
$559British Airways
Find Deal
Th. 3, Thg. 1 6 - Th. 6, Thg. 1 16
British Airways Logo
8:35 pm - 5:35 pmBWI-OPO
16h 00m1 stop
British Airways Logo
8:40 pm - 6:45 pmOPO-BWI
27h 05m2 stops
$562British Airways
Find Deal
Th. 3, Thg. 1 6 - Th. 6, Thg. 1 16
United Airlines Logo
10:45 am - 11:40 amBWI-OPO
19h 55m2 stops
United Airlines Logo
12:30 pm - 8:57 pmOPO-BWI
37h 27m2 stops
$587United Airlines
Find Deal
Th. 6, Thg. 2 13 - Th. 2, Thg. 2 16
Delta Logo
11:00 am - 10:30 amBWI-OPO
18h 30m2 stops
Delta Logo
11:25 am - 10:56 pmOPO-BWI
16h 31m2 stops
$637Delta
Find Deal
CN, Thg. 12 7 - Th. 3, Thg. 12 16
Delta Logo
3:30 pm - 10:30 amBWI-OPO
14h 00m2 stops
Delta Logo
11:25 am - 10:56 pmOPO-BWI
16h 31m2 stops
$657Delta
Find Deal
Th. 3, Thg. 12 2 - Th. 4, Thg. 12 17
American Airlines Logo
8:05 am - 7:35 amBWI-OPO
18h 30m2 stops
American Airlines Logo
8:15 am - 11:48 pmOPO-BWI
20h 33m2 stops
$673American Airlines
Find Deal
Th. 7, Thg. 10 18 - Th. 7, Thg. 10 25
American Airlines Logo
11:09 am - 7:40 amBWI-OPO
15h 31m2 stops
American Airlines Logo
8:20 am - 7:19 pmOPO-BWI
15h 59m2 stops
$721American Airlines
Find Deal
Th. 6, Thg. 11 7 - Th. 7, Thg. 11 15

United Airlines flights from Baltimore to Porto

Our best United Airlines deals on Baltimore to Porto flight tickets
United Airlines
Dec 28
BWI5:19 pmBaltimore/Washington
40h 36m
2 stops
OPO2:55 pmPorto
Jan 12
OPO12:30 pmPorto
54h 27m
2 stops
BWI1:57 pmBaltimore/Washington
$536
Find similar
United Airlines
Feb 13
BWI10:45 amBaltimore/Washington
19h 55m
2 stops
OPO11:40 amPorto
Feb 16
OPO12:30 pmPorto
37h 27m
2 stops
BWI8:57 pmBaltimore/Washington
$587
Find similar
United Airlines
Feb 12
BWI5:11 pmBaltimore/Washington
37h 29m
2 stops
OPO11:40 amPorto
Feb 16
OPO12:30 pmPorto
37h 27m
2 stops
BWI8:57 pmBaltimore/Washington
$593
Find similar

British Airways flights from Baltimore to Porto

Our best British Airways deals on Baltimore to Porto flight tickets
British Airways
Nov 30
BWI8:35 pmBaltimore/Washington
15h 05m
1 stop
OPO4:40 pmPorto
Dec 18
OPO4:55 pmPorto
30h 50m
1 stop
BWI6:45 pmBaltimore/Washington
$547
Find similar
British Airways
Jan 6
BWI8:35 pmBaltimore/Washington
16h 00m
1 stop
OPO5:35 pmPorto
Jan 16
OPO8:20 amPorto
16h 08m
2 stops
BWI7:28 pmBaltimore/Washington
$559
Find similar
British Airways
Jan 6
BWI8:35 pmBaltimore/Washington
16h 00m
1 stop
OPO5:35 pmPorto
Jan 16
OPO8:40 pmPorto
27h 05m
2 stops
BWI6:45 pmBaltimore/Washington
$562
Find similar

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 Tháng Tám 18, 2025.
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

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Th. 3 1/6

10:45 am-12:05 pm

2 stops20h 20m

Porto

Th. 6 1/16

6:00 am-8:57 pm

2 stops19h 57m

$518

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

CN 12/28

5:19 pm-2:55 pm

2 stops40h 36m

Porto

Th. 2 1/12

12:30 pm-1:57 pm

2 stops54h 27m

$536

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

CN 11/30

8:35 pm-4:40 pm

1 stop15h 05m

Porto

Th. 5 12/18

4:55 pm-6:45 pm

1 stop30h 50m

$547

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Th. 3 1/6

8:35 pm-5:35 pm

1 stop16h 00m

Porto

Th. 6 1/16

8:20 am-7:28 pm

2 stops16h 08m

$559

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Th. 3 1/6

8:35 pm-5:35 pm

1 stop16h 00m

Porto

Th. 6 1/16

8:40 pm-6:45 pm

2 stops27h 05m

$562

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Th. 6 2/13

10:45 am-11:40 am

2 stops19h 55m

Porto

Th. 2 2/16

12:30 pm-8:57 pm

2 stops37h 27m

$587

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

CN 12/7

11:00 am-10:30 am

2 stops18h 30m

Porto

Th. 3 12/16

11:25 am-10:56 pm

2 stops16h 31m

$637

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Th. 3 12/2

3:30 pm-10:30 am

2 stops14h 00m

Porto

Th. 4 12/17

11:25 am-10:56 pm

2 stops16h 31m

$657

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Th. 7 10/18

8:05 am-7:35 am

2 stops18h 30m

Porto

Th. 7 10/25

8:15 am-11:48 pm

2 stops20h 33m

$673

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Th. 6 11/7

11:09 am-7:40 am

2 stops15h 31m

Porto

Th. 7 11/15

8:20 am-7:19 pm

2 stops15h 59m

$721

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 day to depart on your flight to Porto?

The cheapest day to depart on your flight to Porto is on a Sunday when prices can be found for as low as $613. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $779. These prices are subject to change though, so be sure to set up a Price Alert for flights to Porto.

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

In the afternoon is the cheapest time of day to fly from Baltimore to Porto when you can find flight prices for as low as $698. Flying to Porto in the afternoon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $836 on average. Flights to Porto from Baltimore at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

Can stopping save me money on Baltimore to Porto flights?

You could potentially save up to 50% 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

Best Price Found

$276

Fastest flight time

13h 30m

Direct flights

None

Airports in Porto

1 airport
The best one-way flight to Porto from Baltimore in the past 72 hours is $276. The best round-trip flight deal from Baltimore to Porto found on momondo in the last 72 hours is $518.
The fastest flight from Baltimore to Porto takes 13h 30m
There are no direct flights from Baltimore to Porto. Popular non-direct route for this connection is Baltimore/Washington Airport - Porto Airport.
There is 1 airport near Porto: Porto (OPO)
Search flight deals

  • 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 00m, 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 $434Free CancellationRating
8.0
7,981 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
Aveiro
Coimbra
Braga
Matosinhos
Caminha
Lamego
Guimarães
Esposende
Chaves
Arcos de Valdevez
Espinho
Viseu
Ponte de Lima
Pinhao
Santa Maria da Feira
Curia
Penafiel
Mesao Frio
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.

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