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Cheap flights from Baltimore to Porto from $277

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 1/11. 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.
American Airlines Logo
11:13 am - 7:40 amBWI-OPO
15h 27m2 stops
American Airlines Logo
8:20 am - 11:52 pmOPO-BWI
20h 32m2 stops
$460American Airlines
Find Deal
Wed, Jan 14 - Thu, Jan 22
British Airways Logo
8:35 pm - 4:40 pmBWI-OPO
15h 05m1 stop
British Airways Logo
8:40 pm - 6:45 pmOPO-BWI
27h 05m2 stops
$468British Airways
Find Deal
Sun, Jan 11 - Mon, Jan 19
Air France Logo
3:37 pm - 10:30 amBWI-OPO
13h 53m2 stops
Air France Logo
11:25 am - 10:53 pmOPO-BWI
16h 28m2 stops
$478Air France
Find Deal
Tue, Feb 24 - Tue, Mar 3
Delta Logo
10:54 am - 10:30 amBWI-OPO
18h 36m2 stops
Delta Logo
11:15 am - 12:41 amOPO-BWI
18h 26m2 stops
$479Delta
Find Deal
Wed, Jan 14 - Wed, Jan 21
British Airways Logo
9:35 pm - 4:40 pmBWI-OPO
15h 05m1 stop
British Airways Logo
6:30 pm - 7:45 pmOPO-BWI
29h 15m1 stop
$480British Airways
Find Deal
Sun, Mar 8 - Wed, Mar 18
British Airways Logo
11:13 am - 4:40 pmBWI-OPO
24h 27m2 stops
British Airways Logo
5:30 pm - 9:18 pmOPO-BWI
32h 48m2 stops
$481British Airways
Find Deal
Sun, Jan 11 - Mon, Jan 19
United Airlines Logo
10:30 am - 9:30 amBWI-OPO
18h 00m2 stops
United Airlines Logo
6:00 am - 9:42 pmOPO-BWI
19h 42m2 stops
$485United Airlines
Find Deal
Wed, Mar 4 - Tue, Mar 10
Delta Logo
3:35 pm - 10:30 amBWI-OPO
14h 55m2 stops
Delta Logo
11:25 am - 7:19 pmOPO-BWI
35h 54m2 stops
$490Delta
Find Deal
Mon, Mar 9 - Mon, Mar 16
Delta Logo
10:53 am - 10:30 amBWI-OPO
19h 37m2 stops
Delta Logo
5:00 am - 7:19 pmOPO-BWI
18h 19m2 stops
$492Delta
Find Deal
Mon, Mar 9 - Wed, Mar 18
Delta Logo
11:45 am - 10:30 amBWI-OPO
18h 45m2 stops
Delta Logo
11:25 am - 7:19 pmOPO-BWI
35h 54m2 stops
$503Delta
Find Deal
Tue, Mar 10 - Mon, Mar 16

American Airlines flights from Baltimore to Porto

Our best American Airlines deals on Baltimore to Porto flight tickets
American Airlines
Jan 14
BWI9:17 amBaltimore/Washington
17h 23m
2 stops
OPO7:40 amPorto
Jan 22
OPO8:20 amPorto
20h 32m
2 stops
BWI11:52 pmBaltimore/Washington
$460
Find similar
American Airlines
Dec 7
BWI12:29 pmBaltimore/Washington
14h 11m
2 stops
OPO7:40 amPorto
Jan 31
OPO8:20 amPorto
17h 58m
2 stops
BWI9:18 pmBaltimore/Washington
$698
Find similar
American Airlines
Dec 7
BWI12:29 pmBaltimore/Washington
14h 11m
2 stops
OPO7:40 amPorto
Jan 31
OPO8:20 amPorto
17h 58m
2 stops
BWI9:18 pmBaltimore/Washington
$860
Find similar

British Airways flights from Baltimore to Porto

Our best British Airways deals on Baltimore to Porto flight tickets
British Airways
Jan 11
BWI8:35 pmBaltimore/Washington
15h 05m
1 stop
OPO4:40 pmPorto
Jan 19
OPO8:40 pmPorto
27h 05m
2 stops
BWI6:45 pmBaltimore/Washington
$468
Find similar
British Airways
Jan 7
BWI8:35 pmBaltimore/Washington
15h 10m
1 stop
OPO4:45 pmPorto
Jan 22
OPO5:35 pmPorto
30h 10m
1 stop
BWI6:45 pmBaltimore/Washington
$480
Find similar
British Airways
Jan 11
BWI11:13 amBaltimore/Washington
24h 27m
2 stops
OPO4:40 pmPorto
Jan 19
OPO5:30 pmPorto
32h 48m
2 stops
BWI9:18 pmBaltimore/Washington
$481
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 December 2, 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

Wed 1/14

11:13 am-7:40 am

2 stops15h 27m

Porto

Thu 1/22

8:20 am-11:52 pm

2 stops20h 32m

$460

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Sun 1/11

8:35 pm-4:40 pm

1 stop15h 05m

Porto

Mon 1/19

8:40 pm-6:45 pm

2 stops27h 05m

$468

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Tue 2/24

3:37 pm-10:30 am

2 stops13h 53m

Porto

Tue 3/3

11:25 am-10:53 pm

2 stops16h 28m

$478

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Wed 1/14

10:54 am-10:30 am

2 stops18h 36m

Porto

Wed 1/21

11:15 am-12:41 am

2 stops18h 26m

$479

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Sun 3/8

9:35 pm-4:40 pm

1 stop15h 05m

Porto

Wed 3/18

6:30 pm-7:45 pm

1 stop29h 15m

$480

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Sun 1/11

11:13 am-4:40 pm

2 stops24h 27m

Porto

Mon 1/19

5:30 pm-9:18 pm

2 stops32h 48m

$481

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Wed 3/4

10:30 am-9:30 am

2 stops18h 00m

Porto

Tue 3/10

6:00 am-9:42 pm

2 stops19h 42m

$485

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Mon 3/9

3:35 pm-10:30 am

2 stops14h 55m

Porto

Mon 3/16

11:25 am-7:19 pm

2 stops35h 54m

$490

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Mon 3/9

10:53 am-10:30 am

2 stops19h 37m

Porto

Wed 3/18

5:00 am-7:19 pm

2 stops18h 19m

$492

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Tue 3/10

11:45 am-10:30 am

2 stops18h 45m

Porto

Mon 3/16

11:25 am-7:19 pm

2 stops35h 54m

$503

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 typical price of a round-trip flight between Baltimore and Porto?

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 17% 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

13h 53m

Direct flights

None
The fastest flight from Baltimore to Porto takes 13h 53m
There are no direct flights from Baltimore to Porto. There are no popular flight routes from Baltimore to Porto.
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  • 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 13h 53m, 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
8,010 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
Guimarães
Lamego
Esposende
Chaves
Viseu
Espinho
Ponte de Lima
Arcos de Valdevez
Pinhao
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.

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