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BWI - OPO

$330 Find Cheap Flights from Baltimore to Porto - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$727
Typical prices: $847-$972
Multiple Airlines
Fri 10/19Sun 11/4
BWI - OPO • 2 stops
Cheapest one-way
$330
Typical prices: $350-$624
Multiple Airlines
Fri 11/9
BWI - OPO • 3 stops
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Cheap Flights from Baltimore to Porto (BWI-OPO)

 

Cheap flights from Baltimore to Porto with top airlines, updated regularly. Compare round-trip, one-way, direct and last-minute deals.

Mon, Oct 19 - Wed, Nov 4
Multiple Airlines Logo
10:50 am - 9:00 amBWI  Baltimore/Washington-OPO Porto
17h 10m2 stops Miami Lisbon Humberto Delgado
Multiple Airlines Logo
1:00 pm - 10:24 amOPO  Porto-BWI Baltimore/Washington
26h 24m2 stops Lisbon Humberto Delgado Miami
$727Multiple Airlines
Mon, Jan 11 - Fri, Jan 15
Delta Logo
1:00 pm - 10:35 amBWI  Baltimore/Washington-OPO Porto
16h 35m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle
Delta Logo
5:00 am - 7:56 pmOPO  Porto-BWI Baltimore/Washington
19h 56m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson
$728Delta
Tue, Nov 10 - Wed, Nov 18
United Airlines Logo
12:34 pm - 9:30 amBWI  Baltimore/Washington-OPO Porto
15h 56m2 stops Chicago O'Hare Intl Newark
United Airlines Logo
6:00 am - 7:09 pmOPO  Porto-BWI Baltimore/Washington
18h 09m2 stops Frankfurt am Main Chicago O'Hare Intl
$733United Airlines
Wed, Nov 4 - Wed, Nov 11
United Airlines Logo
12:34 pm - 9:30 amBWI  Baltimore/Washington-OPO Porto
15h 56m2 stops Chicago O'Hare Intl Newark
United Airlines Logo
12:35 pm - 10:29 amOPO  Porto-BWI Baltimore/Washington
26h 54m2 stops Frankfurt am Main Chicago O'Hare Intl
$734United Airlines
Wed, Nov 11 - Wed, Nov 18
Delta Logo
1:49 pm - 10:35 amBWI  Baltimore/Washington-OPO Porto
15h 46m2 stops Boston Logan Intl Paris Charles de Gaulle
Delta Logo
5:00 am - 5:51 pmOPO  Porto-BWI Baltimore/Washington
17h 51m2 stops Amsterdam Schiphol Boston Logan Intl
$734Delta
Wed, Nov 18 - Wed, Nov 25
Delta Logo
1:49 pm - 10:35 amBWI  Baltimore/Washington-OPO Porto
15h 46m2 stops Boston Logan Intl Paris Charles de Gaulle
Delta Logo
5:00 am - 6:49 pmOPO  Porto-BWI Baltimore/Washington
18h 49m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson
$734Delta
Wed, Nov 4 - Wed, Nov 11
Delta Logo
12:37 pm - 10:35 amBWI  Baltimore/Washington-OPO Porto
16h 58m2 stops Detroit Metropolitan Wayne County Paris Charles de Gaulle
Delta Logo
5:00 am - 5:51 pmOPO  Porto-BWI Baltimore/Washington
17h 51m2 stops Amsterdam Schiphol Boston Logan Intl
$734Delta
Tue, Dec 8 - Wed, Dec 16
Delta Logo
1:52 pm - 10:35 amBWI  Baltimore/Washington-OPO Porto
15h 43m2 stops Boston Logan Intl Paris Charles de Gaulle
Delta Logo
5:00 am - 5:58 pmOPO  Porto-BWI Baltimore/Washington
17h 58m2 stops Amsterdam Schiphol Boston Logan Intl
$735Delta
Tue, Dec 8 - Wed, Dec 16
Air France Logo
2:00 pm - 10:35 amBWI  Baltimore/Washington-OPO Porto
15h 35m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle
Air France Logo
5:55 am - 4:57 pmOPO  Porto-BWI Baltimore/Washington
16h 02m2 stops Paris Charles de Gaulle Detroit Metropolitan Wayne County
$741Air France
Tue, Dec 8 - Wed, Dec 16
Air France Logo
2:00 pm - 10:35 amBWI  Baltimore/Washington-OPO Porto
15h 35m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle
Air France Logo
5:55 am - 4:57 pmOPO  Porto-BWI Baltimore/Washington
16h 02m2 stops Paris Charles de Gaulle Detroit Metropolitan Wayne County
$742Air France

Price, demand and travel trends for Baltimore to Porto flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Which airline is the cheapest to fly from Baltimore to Porto?

Delta ($728) and United Airlines ($729) are the cheapest airlines to fly round-trip from Baltimore to Porto according to KAYAK data over the last 5 days.

Find deals

Key details for Baltimore to Porto flights

Cheapest flight

$330
One-way flight from Baltimore to Porto

When to book flights from Baltimore to Porto

Are your dates flexible? Find out the best times to travel from Baltimore to Porto based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Baltimore to Porto flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Baltimore to Porto?

    Two cabin classes are available on flights from Baltimore to Porto:

    • Economy Class
    • Business Class

  • Do I need a passport to fly from Baltimore to Porto?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How are flight prices from Baltimore to Porto looking right now?

    One-way fares from Baltimore to Porto are currently lower than usual. Average one-way flight prices are about $335, which is 21% below the typical average for this route.

  • What car rental options are available at Porto Airport (OPO)?

    Porto Airport (OPO) hosts 5 major car rental companies, with daily rates starting from around $2 for economy cars. Top options include:

    • GREEN MOTION
    • Drive on Holiday
    • Klass Wagen
    • Goldcar Rental SP
    • Sixt

  • Which airports can I use when flying from Baltimore to Porto?

    Flights from Baltimore to Porto usually depart from Baltimore/Washington (BWI) and arrive at Porto (OPO).

  • Can I save money by using flexible dates for flights from Baltimore to Porto?

    Yes. Flexible dates can save you up to 20% on flights from Baltimore to Porto. Monday is the cheapest departure day at $782 round-trip on average, while Saturday is the most expensive at $972, a difference of $190.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What is the time difference between Baltimore and Porto?

    Porto is 5 hours ahead of Baltimore (Western European Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Porto?

    Some of the most popular sights in Porto are Ribeira Square, Avenida dos Aliados and Boavista Square. These are among the most viewed places in Porto on KAYAK.

Your guide to booking Baltimore to Porto flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Monday departure and avoid flying on Saturday. On this route, Monday flights average $782, about $190 less than Saturday fares (20% savings) based on the last 12 months.
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Porto Airport.

    • Opo Hotel Porto Aeroporto

More options for your flight from Baltimore to Porto

Complete your trip to Porto with a hotel stay or car rental

Car rentals in Porto
Hotels in Porto
Vacations in Porto