BWI - OPO

$291 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
$687
Typical prices: $534-$927
Multiple Airlines
Wed 10/17Sun 10/21
BWI - OPO • 3 stops
Cheapest one-way
$291
Typical prices: $358-$556
Multiple Airlines
Wed 10/17
BWI - OPO • 2 stops
Nonstop flights
Not available
There are currently no direct flights between Baltimore and Porto. You'll need to take a connecting flight to reach the destination.
Insights
Insights
Top layover airports
Lisbon Humberto Delgado (LIS)
Cheapest • Avg $652 (round-trip)
Newark (EWR)
Shortest trip • 11h 50m (one-way)
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Insights
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Flight Deals

Cheap Flights from Baltimore to Porto (BWI-OPO)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Baltimore to Porto

Sat, Oct 17 - Wed, Oct 21
Multiple Airlines Logo
8:30 pm - 8:00 amBWI  Baltimore/Washington-OPO Porto
30h 30m3 stops Reykjavik Keflavik Intl Milan Malpensa Barcelona-El Prat
Multiple Airlines Logo
4:50 pm - 10:15 pmOPO  Porto-BWI Baltimore/Washington
34h 25m3 stops Barcelona-El Prat Milan Malpensa Reykjavik Keflavik Intl
$687Multiple Airlines
Sat, Oct 17 - Wed, Oct 21
Multiple Airlines Logo
8:30 pm - 8:25 pmBWI  Baltimore/Washington-OPO Porto
18h 55m2 stops Reykjavik Keflavik Intl Milan Malpensa
Multiple Airlines Logo
9:15 pm - 10:15 pmOPO  Porto-BWI Baltimore/Washington
30h 00m3 stops Lisbon Humberto Delgado Milan Malpensa Reykjavik Keflavik Intl
$700Multiple Airlines
Wed, Nov 11 - Tue, Nov 17
Multiple Airlines Logo
7:40 pm - 8:10 amBWI  Baltimore/Washington-OPO Porto
31h 30m3 stops Reykjavik Keflavik Intl Kastrup Copenhagen Barcelona-El Prat
Multiple Airlines Logo
9:55 pm - 6:40 pmOPO  Porto-BWI Baltimore/Washington
25h 45m3 stops Barcelona-El Prat Kastrup Copenhagen Reykjavik Keflavik Intl
$722Multiple Airlines
Tue, Dec 8 - Wed, Dec 16
Delta Logo
12:00 pm - 10:35 amBWI  Baltimore/Washington-OPO Porto
17h 35m2 stops Detroit Metropolitan Wayne County Paris Charles de Gaulle
Delta Logo
5:00 am - 4:49 pmOPO  Porto-BWI Baltimore/Washington
16h 49m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County
$747Delta
Tue, Dec 8 - Wed, Dec 16
Delta Logo
12:18 pm - 10:35 amBWI  Baltimore/Washington-OPO Porto
17h 17m2 stops Detroit Metropolitan Wayne County Paris Charles de Gaulle
Delta Logo
5:00 am - 6:06 pmOPO  Porto-BWI Baltimore/Washington
18h 06m2 stops Amsterdam Schiphol Boston Logan Intl
$748Delta
Mon, Feb 1 - Wed, Feb 10
Delta Logo
3:30 pm - 10:35 amBWI  Baltimore/Washington-OPO Porto
14h 05m2 stops Boston Logan Intl Paris Charles de Gaulle
Delta Logo
5:00 am - 7:41 pmOPO  Porto-BWI Baltimore/Washington
19h 41m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson
$753Delta
Mon, Dec 7 - Fri, Dec 11
United Airlines Logo
6:15 am - 9:30 amBWI  Baltimore/Washington-OPO Porto
22h 15m2 stops Chicago O'Hare Intl Newark
United Airlines Logo
12:35 pm - 10:09 amOPO  Porto-BWI Baltimore/Washington
26h 34m2 stops Newark Chicago O'Hare Intl
$755United Airlines
Mon, Sep 28 - Tue, Oct 6
Multiple Airlines Logo
8:30 pm - 8:00 amBWI  Baltimore/Washington-OPO Porto
30h 30m3 stops Reykjavik Keflavik Intl Zurich Barcelona-El Prat
Multiple Airlines Logo
4:50 pm - 7:25 pmOPO  Porto-BWI Baltimore/Washington
31h 35m3 stops Barcelona-El Prat Zurich Reykjavik Keflavik Intl
$760Multiple Airlines
Mon, Sep 28 - Tue, Oct 6
Multiple Airlines Logo
8:30 pm - 8:00 amBWI  Baltimore/Washington-OPO Porto
30h 30m3 stops Reykjavik Keflavik Intl Zurich Barcelona-El Prat
Multiple Airlines Logo
4:50 pm - 7:25 pmOPO  Porto-BWI Baltimore/Washington
31h 35m3 stops Barcelona-El Prat Zurich Reykjavik Keflavik Intl
$761Multiple Airlines
Mon, Dec 7 - Fri, Dec 11
United Airlines Logo
5:20 pm - 9:30 amBWI  Baltimore/Washington-OPO Porto
35h 10m2 stops Chicago O'Hare Intl Newark
United Airlines Logo
12:35 pm - 10:09 amOPO  Porto-BWI Baltimore/Washington
26h 34m2 stops Newark Chicago O'Hare Intl
$766United Airlines
Booking Insights

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 from Baltimore to Porto with more confidence.

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

Delta ($747) and United Airlines ($755) are the cheapest airlines to fly round-trip from Baltimore to Porto according to KAYAK data over the last 5 days.

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Key details for Baltimore to Porto flights

Cheapest flight

$291
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 route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • 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).

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

    Only Economy Class is available on flights from Baltimore to Porto.

  • Which airports do connecting flights from Baltimore to Porto pass through?

    Connecting flights from Baltimore to Porto most commonly pass through:

    • Lisbon Humberto Delgado (LIS) - 80% of one-stop connections
    • Newark (EWR) - 20% of one-stop connections
    Together, these airports account for 100% of one-stop bookings on this route.

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

    Yes. Being flexible with your travel dates can save you up to 46% on the Baltimore to Porto route. Thursday is the cheapest departure day at $529 round-trip on average, while Saturday is the most expensive at $972, a difference of $443. 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 popular places can I visit in Porto?

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

  • How long is a flight from Baltimore to Porto?

    A nonstop flight from Baltimore to Porto takes 0h 00m, covering 3,493 miles.

  • 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 $301, which is 29% below the typical average for this route.

  • How much time can I save by choosing a different layover airport from Baltimore to Porto?

    Flying via Newark (EWR) gives the shortest average 1-stop total travel time at 11h 50m, compared with 12h 18m via Lisbon Humberto Delgado (LIS).

  • 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 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:
    · Klass Wagen
    · Drive on Holiday
    · GREEN MOTION
    · Goldcar Rental SP
    · SURPRICE CAR RENTAL

  • How much should I expect to pay for a Baltimore to Porto flight?

    Round-trip flights from Baltimore to Porto range from $534 to $927, with an average of $782 over the past 12 months. Anything below $534 counts as a good deal.

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 can be flexible, aim for a Thursday departure instead of Saturday. On this route, Thursday flights average $529 - about $443 less than Saturday (46% 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

Everything you need to know for your flight from Baltimore to Porto

Information on your arrival and departure airports

Baltimore (BWI)
Porto (OPO)