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583 € Cheap Flights from Baltimore Washington International to Porto

Compare Baltimore Washington International to Porto flight deals

Find the cheapest month or even day of the year to fly to Porto

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Flight deals from Baltimore Washington International to Porto

Looking for a cheap last-minute deal or the best return flight from Baltimore Washington International Airport to Porto Airport? If you want to travel next month, return fares start from 712 €. Find the lowest prices on one-way and return tickets right here.
Porto.583 € per passenger.Departing Tue, 18 Aug, returning Thu, 10 Sep.Return flight with Frontier Airlines and Ryanair.Outbound indirect flight with Frontier Airlines, departs from Baltimore Washington International on Tue, 18 Aug, arriving in Porto.Inbound indirect flight with Ryanair, departs from Porto on Thu, 10 Sep, arriving in Baltimore Washington International.Price includes taxes and charges.From 583 €, select.
Porto.636 € per passenger.Departing Thu, 5 Nov, returning Wed, 11 Nov.Return flight with Icelandair and Iberia.Outbound indirect flight with Icelandair, departs from Baltimore Washington International on Thu, 5 Nov, arriving in Porto.Inbound indirect flight with Iberia, departs from Porto on Wed, 11 Nov, arriving in Baltimore Washington International.Price includes taxes and charges.From 636 €, select.
Porto.652 € per passenger.Departing Tue, 12 Jan, returning Tue, 19 Jan.Return flight with Delta.Outbound indirect flight with Delta, departs from Baltimore Washington International on Tue, 12 Jan, arriving in Porto.Inbound indirect flight with Delta, departs from Porto on Tue, 19 Jan, arriving in Baltimore Washington International.Price includes taxes and charges.From 652 €, select.
Porto.654 € per passenger.Departing Mon, 19 Oct, returning Mon, 26 Oct.Return flight with Frontier Airlines and Ryanair.Outbound indirect flight with Frontier Airlines, departs from Baltimore Washington International on Mon, 19 Oct, arriving in Porto.Inbound indirect flight with Ryanair, departs from Porto on Mon, 26 Oct, arriving in Baltimore Washington International.Price includes taxes and charges.From 654 €, select.
Porto.654 € per passenger.Departing Mon, 15 Mar, returning Thu, 18 Mar.Return flight with Delta.Outbound indirect flight with Delta, departs from Baltimore Washington International on Mon, 15 Mar, arriving in Porto.Inbound indirect flight with Delta, departs from Porto on Thu, 18 Mar, arriving in Baltimore Washington International.Price includes taxes and charges.From 654 €, select.
Porto.658 € per passenger.Departing Mon, 26 Oct, returning Mon, 2 Nov.Return flight with Icelandair and Volotea.Outbound indirect flight with Icelandair, departs from Baltimore Washington International on Mon, 26 Oct, arriving in Porto.Inbound indirect flight with Volotea, departs from Porto on Mon, 2 Nov, arriving in Baltimore Washington International.Price includes taxes and charges.From 658 €, select.
Porto.658 € per passenger.Departing Tue, 26 Jan, returning Tue, 23 Feb.Return flight with Delta.Outbound indirect flight with Delta, departs from Baltimore Washington International on Tue, 26 Jan, arriving in Porto.Inbound indirect flight with Delta, departs from Porto on Tue, 23 Feb, arriving in Baltimore Washington International.Price includes taxes and charges.From 658 €, select.
Porto.658 € per passenger.Departing Tue, 1 Dec, returning Tue, 8 Dec.Return flight with Delta.Outbound indirect flight with Delta, departs from Baltimore Washington International on Tue, 1 Dec, arriving in Porto.Inbound indirect flight with Delta, departs from Porto on Tue, 8 Dec, arriving in Baltimore Washington International.Price includes taxes and charges.From 658 €, select.
Porto.658 € per passenger.Departing Tue, 23 Feb, returning Tue, 2 Mar.Return flight with Delta.Outbound indirect flight with Delta, departs from Baltimore Washington International on Tue, 23 Feb, arriving in Porto.Inbound indirect flight with Delta, departs from Porto on Tue, 2 Mar, arriving in Baltimore Washington International.Price includes taxes and charges.From 658 €, select.
Porto.658 € per passenger.Departing Tue, 16 Feb, returning Tue, 23 Feb.Return flight with Delta.Outbound indirect flight with Delta, departs from Baltimore Washington International on Tue, 16 Feb, arriving in Porto.Inbound indirect flight with Delta, departs from Porto on Tue, 23 Feb, arriving in Baltimore Washington International.Price includes taxes and charges.From 658 €, select.
Porto.660 € per passenger.Departing Tue, 17 Nov, returning Thu, 10 Dec.Return flight with Delta.Outbound indirect flight with Delta, departs from Baltimore Washington International on Tue, 17 Nov, arriving in Porto.Inbound indirect flight with Delta, departs from Porto on Thu, 10 Dec, arriving in Baltimore Washington International.Price includes taxes and charges.From 660 €, select.
Porto.672 € per passenger.Departing Mon, 14 Sep, returning Mon, 21 Sep.Return flight with Icelandair and Ryanair.Outbound indirect flight with Icelandair, departs from Baltimore Washington International on Mon, 14 Sep, arriving in Porto.Inbound indirect flight with Ryanair, departs from Porto on Mon, 21 Sep, arriving in Baltimore Washington International.Price includes taxes and charges.From 672 €, select.
Porto.712 € per passenger.Departing Tue, 25 Aug, returning Mon, 31 Aug.Return flight with Icelandair and Ryanair.Outbound indirect flight with Icelandair, departs from Baltimore Washington International on Tue, 25 Aug, arriving in Porto.Inbound indirect flight with Ryanair, departs from Porto on Mon, 31 Aug, arriving in Baltimore Washington International.Price includes taxes and charges.From 712 €, select.
Porto.722 € per passenger.Departing Thu, 31 Dec, returning Thu, 7 Jan.Return flight with Delta.Outbound indirect flight with Delta, departs from Baltimore Washington International on Thu, 31 Dec, arriving in Porto.Inbound indirect flight with Delta, departs from Porto on Thu, 7 Jan, arriving in Baltimore Washington International.Price includes taxes and charges.From 722 €, select.
Porto.730 € per passenger.Departing Thu, 24 Sep, returning Thu, 1 Oct.Return flight with Icelandair and Norwegian Air Sweden.Outbound indirect flight with Icelandair, departs from Baltimore Washington International on Thu, 24 Sep, arriving in Porto.Inbound indirect flight with Norwegian Air Sweden, departs from Porto on Thu, 1 Oct, arriving in Baltimore Washington International.Price includes taxes and charges.From 730 €, select.
Porto.745 € per passenger.Departing Tue, 6 Oct, returning Thu, 3 Dec.Return flight with British Airways.Outbound indirect flight with British Airways, departs from Baltimore Washington International on Tue, 6 Oct, arriving in Porto.Inbound indirect flight with British Airways, departs from Porto on Thu, 3 Dec, arriving in Baltimore Washington International.Price includes taxes and charges.From 745 €, select.

Find the cheapest month to fly from Baltimore Washington International to Porto

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Baltimore Washington International to Porto flights are currently cheapest in November.
Jul
Find prices
Aug
from 712 €
Sep
from 672 €
Oct
from 654 €
Nov
from 636 €
Dec
from 658 €
Jan
from 652 €
Feb
from 658 €
Mar
from 654 €
Apr
from 784 €
May
from 769 €
Jun
from 909 €

Baltimore Washington International to Porto: Alternative routes

Compare routes from Baltimore Washington International to Porto below. You may find an airport to fly into that's cheaper, faster, or easier than Porto.

Porto

12km from central Porto
ClosestCheapest
from 583 €
Search flights

Vila Real

76km from central Porto
Search flights

Viseu G. Lobato

81km from central Porto
Search flights

Washington D.C. to Porto: Flight information

The things to know before you go.
Cheapest flight found583 €
Cheapest month to flyAugust

Finding cheap flights from Baltimore Washington International to Porto: Frequently asked questions

The best price we found for a return flight from Baltimore Washington International to Porto is 583 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Baltimore Washington International to Porto. But we found flights with one or more stops from 583 €.
As of July 2026, there are no flights flying from Baltimore Washington International to Porto.
The cheapest month to fly from Baltimore Washington International to Porto is usually August.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Baltimore Washington International Airport to Porto Airport on Tuesday, 18 August 2026.
No airlines currently offer direct flights between Baltimore Washington International Airport and Porto Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Porto but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Porto is around 40 days in advance, so don’t leave your flight to the last minute.

Currently, Frontier Airlines offers the cheapest flight tickets to Porto.

Travelling from Baltimore Washington International Airport (BWI) to Porto Airport (OPO): what you need to know

  • The timezone in Porto is UTC+0, which is five hours ahead of Washington DC.

  • Your BWI to OPO flight won't wait if you're running late, so don't forget to check in on time. Arrive up to one hour in advance for domestic flights and two hours ahead for international travel.

  • Travelling during a peak time like July? Public holidays and other popular periods can result in longer lines and delays at check-in and security. Play things extra safe and arrive up to four hours before international flights and two hours before domestic departures.

  • We make it easy to book a flight with a stopover. To see your options for tickets from Baltimore Washington International Airport to Porto Airport, deselect 'Direct flights only.' Then, pick a flight offering a stop long enough to explore the city of your choice. Popular stopovers between BWI and OPO include:

    • New York John F. Kennedy Airport

    • Boston Logan International Airport

    • Reykjavik Keflavik Airport

Handy information about Baltimore Washington International Airport (BWI)

  • When it comes to Baltimore Washington International Airport's on-time performance, data shows 77% of flights complete their journey on time.

  • Central Washington DC to Baltimore Washington International Airport is approximately 48 kilometres. Depending on traffic, it'll take you about 40 minutes to get there if you're driving, catching a taxi or ride-sharing.

  • The journey on public transport typically takes 50 minutes.

  • Need a handy hotel near BWI? If you're boarding an early flight from Baltimore Washington International Airport to Porto Airport, these accommodation options will put you moments from your check-in counter:

Arriving at Porto Airport (OPO)

  • Consider staying in a hotel close to OPO if you have a late Baltimore Washington International Airport to Porto Airport flight. Choose one of these options and skip the long transfer:

  • Grab a Porto Airport rental car and explore Porto and beyond with your own set of wheels. Klass Wagen, Goldcar and Drive & Go are popular outlets you can book with here.

  • Secure the lowest price by reserving your ride from Porto Airport about three weeks ahead of your departure.

When to fly to Porto Airport (OPO)

  • It's time to work out your dates for your flight from Baltimore Washington International Airport to Porto Airport. August is the most popular month to head to Porto. If you want a more relaxed vibe, go in March.

  • The warmest month in Porto is August, with the temperature ranging between 14ºC (57ºF) and 32ºC (90ºF). Lock in your flights from Baltimore Washington International Airport to Porto Airport in this month if this is the type of weather you enjoy.

  • If you'd rather travel in cooler conditions, look for a cheap ticket from BWI to OPO in January. Average temperatures are between 3ºC (37ºF) and 14ºC (57ºF) then.

Explore more of Portugal

  • Porto has loads to offer, but there are so many other parts of Portugal just waiting to be discovered. About 274 kilometres south of Porto, a trip to Lisbon will fill your itinerary to the brim. Start with leading sights like Pasteis de Belém, belém and Real Mosteiro de Santa Maria de Belém.

  • If you're ready to explore another major destination in Portugal, head for Amadora, roughly 274 kilometres south of Porto. Roman Villa, Park Fantasia and Palácio dos Condes da Lousã are the start of reasons to visit.

Plan the rest of your trip from Washington D.C. to Porto

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.