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

Book the best Porto fare with no extra fees

Flight deals from Baltimore Washington International Airport to Porto Airport

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 Rs213,158. Find the lowest prices on one-way and return tickets right here.

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 October.

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.

Washington D.C. to Porto: Flight information

The things to know before you go.
Cheapest flight foundRs76,459
Cheapest month to flyOctober

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 Rs166,355. 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 Rs166,355.
As of March 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 November.
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 Wednesday, 11 November 2026.
No airlines currently offer direct flights between Baltimore Washington International Airport and Porto Airport. Most routes have one or more stops.
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, Delta offers the cheapest flight tickets to Porto.

Flying from Baltimore/Wash International Thurgood Marshall Airport (BWI) to Porto Airport (OPO): what you need to know

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

  • For a stress-free journey, turn up at the airport two hours ahead of international flights and one hour before domestic departures. This will give you plenty of time to board your BWI to OPO flight.

  • During popular months such as July, you'll want to get to the airport earlier. Plan to arrive two hours before domestic departures and four hours ahead of international flights whenever you're flying during a peak period in general.

  • Consider adding a stopover when booking your ticket from Baltimore/Wash International Thurgood Marshall Airport to Porto Airport. Just deselect 'Direct flights only' to break up your journey, or enjoy a detour to a new and interesting place. Here are some options between BWI and OPO:

    • John F. Kennedy International Airport

    • Logan International Airport

    • Keflavik International Airport

How to find the cheapest flights from Baltimore/Wash International Thurgood Marshall Airport (BWI) to Porto Airport (OPO)

  • The lowest price we've seen for a one-way Baltimore/Wash International Thurgood Marshall Airport to Porto Airport flight is Rs76,459. A return fare is currently Rs166,355. Depending on the availability and when you book, these fares can change.

  • Don't leave everything to the last minute. You're more likely to find cheap tickets from BWI to OPO if you book early. Airlines often have some terrific early bird rates.

  • The 'Whole month' search function shows you the cheapest flights from Baltimore/Wash International Thurgood Marshall Airport to Porto Airport throughout the month. It's an easy way to find a bargain if your travel plans are flexible.

  • Getting your hands on cheap flights from BWI to OPO is a cinch with Price Alerts. Simply create one of these automatic alerts and we'll get in touch when a new deal comes up.

  • Tailor your trip using filters. Choose your ideal departure and arrival times, total journey duration and airlines. You can also sort results by 'Best,' 'Cheapest' or 'Fastest' flights from Baltimore/Wash International Thurgood Marshall Airport to Porto Airport.

Handy information about Baltimore/Wash International Thurgood Marshall Airport (BWI)

  • Of the flights that depart from Baltimore/Wash International Thurgood Marshall Airport, 77.13% arrive as scheduled at their destination.

  • To get to Baltimore/Wash International Thurgood Marshall Airport from central Washington DC, it takes around 50 minutes if you're planning to drive. This depends on traffic though. It's approximately 48 kilometres from the airport to the city centre.

  • Planning to take public transport? You can expect a journey time of around 1 hour 30 minutes.

  • Booked an early flight from Baltimore/Wash International Thurgood Marshall Airport to Porto Airport? Avoid rushing to the terminal (and sneak in some extra snooze time) by choosing one of these hotels close to BWI:

Arriving at Porto Airport (OPO)

  • The last thing you need is a long trip to your hotel if you're landing late on a Baltimore/Wash International Thurgood Marshall Airport to Porto Airport flight. Check in to one of these accommodation options near OPO instead:

  • Travel at your own pace with a Porto Airport rental car. Book your wheels from Klass Wagen, Goldcar or Drive & Go and discover more of Porto and beyond.

  • Booking your vehicle from Porto Airport around three weeks ahead can help you secure the lowest rate.

Getting from Porto Airport (OPO) to central Porto

  • Porto Airport to central Porto has a drive time of around 20 minutes. It's approximately 16 kilometres away.

  • It takes roughly 50 minutes if you're travelling on public transport.

When to fly to Porto Airport (OPO)

  • August is the most popular month for flights from Baltimore/Wash International Thurgood Marshall Airport to Porto Airport. To steer clear of the crowds, visit Porto in January.

  • Before locking in your flight from Baltimore/Wash International Thurgood Marshall Airport to Porto Airport, consider the kind of weather you like. August is the warmest month in Porto, with the temperature ranging from 14ºC to 32ºC.

  • January has average temperatures of between 3ºC and 14ºC. Look for cheap tickets from BWI to OPO sometime around then if you like cooler conditions.

Explore more of Portugal

  • Porto has plenty going for it, but there are so many other corners of Portugal you'll want to see. About 274 kilometres south of Porto, a visit to Lisbon will fill your itinerary to the brim. Start with leading sights like Torre de Belem Garden, Estrela At Lisbon - Tram 28 and Archaeological museum of Sao Jorge Castle.

  • Around 274 kilometres south of Porto, Amadora is another essential stop in Portugal. Experience the best of this destination with a visit to Jardim Porta do Viveiro Alfragide, Jardim Caracol do Victor Alfragide and Jardim e estatua Eduardo Jorge.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.