Find flights
Deals
Insights
When to book
FAQs & Tips
Airlines

BWI - OPO

Find cheap flights from Baltimore to Porto from $365

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Baltimore to Porto departing on 7/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Sun 6/9
Sun 6/16

Search hundreds of travel sites at once for deals on flights to Porto

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Baltimore to Porto, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Baltimore to Porto, as well as popular online travel agencies
In the last 7 days travelers have searched 43,156,178 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals from Baltimore to Porto (BWI-OPO)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Baltimore to Porto that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
5:30 pm - 3:30 pmBWI-OPO
17h 00m2 stops
9:15 am - 10:52 pmOPO-BWI
18h 37m2 stops
$567Air France
Find Deal
Thu, Aug 15 - Wed, Aug 21
6:30 pm - 3:30 pmBWI-OPO
16h 00m2 stops
9:15 am - 10:52 pmOPO-BWI
18h 37m2 stops
$568Delta
Find Deal
Sat, Aug 17 - Fri, Aug 23
6:50 pm - 8:20 pmBWI-OPO
20h 30m1 stop
8:55 pm - 5:40 pmOPO-BWI
25h 45m1 stop
$610PLAY
Find Deal
Wed, Sep 4 - Sun, Sep 8
5:37 pm - 6:15 pmBWI-OPO
19h 38m2 stops
4:20 pm - 5:23 pmOPO-BWI
30h 03m2 stops
$624Air France
Find Deal
Fri, Aug 2 - Mon, Aug 26
12:21 pm - 3:30 pmBWI-OPO
22h 09m2 stops
4:20 pm - 4:17 pmOPO-BWI
28h 57m2 stops
$625Air France
Find Deal
Wed, Sep 25 - Sun, Sep 29
5:05 pm - 3:30 pmBWI-OPO
17h 25m2 stops
9:15 am - 10:46 pmOPO-BWI
18h 31m2 stops
$702Delta
Find Deal
Thu, Aug 29 - Fri, Sep 13
9:25 pm - 7:55 pmBWI-OPO
17h 30m2 stops
8:35 pm - 7:40 pmOPO-BWI
28h 05m2 stops
$802Iberia
Find Deal
Sun, Sep 22 - Mon, Sep 30
2:28 pm - 10:40 amBWI-OPO
15h 12m2 stops
11:25 am - 10:42 pmOPO-BWI
16h 17m2 stops
$852KLM
Find Deal
Wed, Jun 5 - Thu, Jun 13
9:25 pm - 3:55 pmBWI-OPO
13h 30m2 stops
8:35 pm - 7:40 pmOPO-BWI
28h 05m2 stops
$1,119Iberia
Find Deal
Fri, Oct 11 - Thu, Oct 17
5:35 pm - 11:40 amBWI-OPO
37h 05m2 stops
8:05 pm - 7:35 pmOPO-BWI
28h 30m1 stop
$1,150British Airways
Find Deal
Thu, Aug 15 - Wed, Aug 21

Flights from Baltimore to Porto - Travel Insights & Trends

Get data-powered insights and trends into flights from Baltimore to Porto to help you find the cheapest flights, the best time to fly and much more.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Baltimore to Porto, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Baltimore to Porto is January, where tickets cost $422 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is $838 and $831 respectively.

How far in advance should I book a flight from Baltimore to Porto?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Baltimore to Porto, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Baltimore to Porto, you should book around 2 days before departure. For the absolute cheapest price, our data suggests you should book 13 days before departure.

Which airlines provide the cheapest flights from Baltimore to Porto?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 3 days, PLAY offered the best one-way deal for that route, at $404. KAYAK users also found Baltimore to Porto round-trip flights on Air France from $567 and on Delta from $568.

Good to know

Low season

December

High season

August

Cheapest flight

$365
Best time to beat the crowds with an average 33% drop in price.
Most popular time to fly with an average 21% increase in price.
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
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Baltimore to Porto

  • What is the cheapest flight from Baltimore to Porto?

    In the last 3 days, the lowest price for a flight from Baltimore to Porto was $365 for a one-way ticket and $567 for a round-trip.

  • Do I need a passport to fly between Baltimore and Porto?

    A passport is required to fly from Baltimore to Porto.

  • Which airports will I be using when flying from Baltimore to Porto?

    When flying out of Baltimore you will be using Baltimore/Washington. You will be landing at Porto, also known as Porto.

  • Which aircraft models fly most regularly from Baltimore to Porto?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Baltimore to Porto?

    Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between Baltimore and Porto, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Baltimore to Porto, Delta or KLM?

    The two airlines most popular with KAYAK users for flights from Baltimore to Porto are Delta and KLM. With an average price for the route of $760 and an overall rating of 8.0, Delta is the most popular choice. KLM is also a great choice for the route, with an average price of $446 and an overall rating of 7.8.

  • How does KAYAK find such low prices on flights from Baltimore to Porto?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Baltimore to Porto.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Baltimore to Porto?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Porto from Baltimore is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Baltimore to Porto?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Porto with an airline and back to Baltimore with another airline. Booking your flights between Baltimore and OPO can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Baltimore to Porto?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Porto from Baltimore up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 5 airlines serving from Baltimore to Porto

 
See real verified KAYAK customer reviews for airlines flying from Baltimore to Porto. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Baltimore to Porto? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 10768 reviews
7.9Comfort
8.6Crew
8.2Boarding
8.0Entertainment
7.4Food
Airline reviews

Boarding was chaotic. I didn’t finish dinner because I went to bed early. Breakfast omelet was overcooked and tasteless but croissant was better than usual. Plane was dirty—crumbs in every seam and lavatory was poorly maintained (paint peeling, etc.) and toilet paper had not been refreshed before takeoff. No cubby for storage in first and seat was narrow.

4.0 OkayPatricia, May 2024DTW - CDG
Read more about Delta reviews

Boarding was chaotic. I didn’t finish dinner because I went to bed early. Breakfast omelet was overcooked and tasteless but croissant was better than usual. Plane was dirty—crumbs in every seam and lavatory was poorly maintained (paint peeling, etc.) and toilet paper had not been refreshed before takeoff. No cubby for storage in first and seat was narrow.

Boarding was somewhat chaotic. Unable to evaluate crew or food/drink because captain kept them seated due to turbulence. Have no idea if entertainment was offered.

West Jet has a horrible boarding process and the seats have no cushion.

Everything went smoothly. I didn’t like that when I booked in the main cabin my wife and I weren’t seated together. One would think when booking on an option that allows picking your seat. They would put you and your travel partner together. Had to call to get it sorted. They did fix.

The gate area was incredibly short staffed, with one representative manning 4-5 flights, which caused a 3 hr delay in boarding even though the plane was all ready to leave. Other flights also were delayed because of this. The flight crew was awesome and I feel bad for the only gate worker on call, but Delta needs to hire more employees.

Very frustrated with boarding gate crew. She announced the plane was small and they would be limiting us to one item to carry on. Not a problem for me as I understand the tiny planes have limited space!! Not the case here! It was a rather large plane and had plenty of room for bags! So because I don’t want to be one of “those people” who ignores the request to check a carry on I did so asking if I would be able to pick it up at the bottom of the ramp on arrival in Knoxville to which she responded “yes”! Then I watched as every other passenger held onto their 2 items and boarded!! Then when we arrived in Knoxville our 2 carry ons had been put with all the other luggage and we had to go to baggage pick up and wait for all the big checked bags to come off the carousel! So she lied!! Frustrating. Next time I won’t be so nice!

It was a good experience except when boarding a female flight attendant did not go out of her way to assist my teenage daughters in finding space for their carry-ons after their compartments were full.

On time departure, smooth trip, flight attendant told through passengers the gate we would arrive at and the gate our outbound flight was departing from. Early arrival

Checking in at the airport the agent only booked the first keg of my trip and had my checked luggage going to the airport with a layover! Never was issued a boarding pass for the second leg or received sticker fir my checked bag. All was well in the end! Delta agents helped to resolve the situation!!!

Delayed due to an ill passenger after loading. Not preventable on Delta's part. Was in first class. The seats are becoming worn and detaching from their velcro attachments. Only got snacks on flight. The attendant was not the friendliest.

The food from Lagos to Amsterdam was was very poor compared to AMS-YYZ

The flight was again delayed for more then 2 hours with some lousy explanation regarding the reason of the delay. Although the flight was delayed for more than 2 hours, no refreshments were offered (according to EU regulations). Last 4 flights on KLM - always at least 2 hrs late. So be prepared that you cannot plan anything with KLM.

I thought KLM was the best airline but the Lima - Amsterdam was 1 hours late, the Brussels - Amsterdam was 2.30 hours late and the Amsterdam - Lima was 30 minutes late

Overall a good experience. We were disappointed when we had to check our carry on due to the plane being full. KLM hadn’t notified us and we had valuable items in the carry on but they still made us check it. Some of the food was great and some was mediocre. Crew is really kind and funny.

One of the vstewardeses wanted to bump me of the plane for absolutely nothing. There is CCTV in the plane ans everything can be verified. Very disappointing , you all will see, o other 5 years and the passangers who does not smile to flight attendent will be bumped off...

It was nice to be on a legacy airline, people try at least.

The plane was clean and the staff was friendly. Food and drinks as expected on international flights. The entertainment system was old style, with a pullout controller, and selections not as extensive as on other flights.

I requested wheel chair assistance , it was confirmed via email that inwoood get it but I didn’t get it . The last leg of my trip to Nigeria was the worst.

The boarding was one of the worst I’ve ever experienced. The fault lays on Ohare Airport and not so much the airline. The waiting area by the gate was the size to accommodate a regional flight for 20-30 people and right next to a busy walkway. When you cramped nearly 300 passengers into that space is was unbearable.

All and all pretty good. It’s crowded but that is what flying is all about. But no complaints otherwise.

They charge me for luggage which is was included on the ticket

Good aorcraft 777 but Worst food ever Breakfast was a bû’with matonnaise… Staff was nice but invisible most of the flight

Business class in the second leg - CDG-EVN was a disaster.

worst experience ever i choose my seat in advance and also have my seat selected in my boarding and the they told me that my seat has been changed without notify me

Food could have been better especially the breakfast. Overall it was a good flight

No birding was given for next trip on same carrier, food was very moderate.

We transited through Chad and what was supposed to be a 1hr 20 minutes transit time lasted over 4hrs. We didn't get regular updates until we complained. After a 10hr flight from Paris no form of refreshment given and finally arrived Abuja over 6hrs later and none of my bags came

The line at boarding was not well organized and managed

Je n'ai pas pû incliner mon siège et une des hôtesses ne comprenait pas ce que je disais. Je devais parler fort

their gluten free lactose meal is the best, I have never been satisfied with my flight meals. I definitely enjoyed my flight and the chair is very spacious for economy. I'm so glad Delta is my flight way back to NY.

Good food, prompt and timely flight, good on-board personnel

Original flight was cancelled - After waiting 2 hours for new take-off times. Then had to stand in line for 3 hours, ending at 2:30 am - to be told, " No hotel rooms anywhere in Dallas". No way for me to get any rest at DFW at that time of night.

Thankful for 2-4-2 economy seating. Food was ok. Free beer & wine in economy was nice. Served hot dinner, mud- flight snack and pre-arrival ham sandwich. Seat with pillow & blanket. Reasonable movie options. Overall, a good experience. IBERIA APP is terrible terrible terrible.... needs to get upgraded to equivalent of TAP Airlines App. No option to bid or request an upgrade. Very disappointing.

I liked the friendly crew and desk staff, all very helpful. I was surprised and a little annoyed on my outbound flight from LGW to MCO as I had prepaid and booked my seat, which was all correct at check in on my boarding pass. when I got on the plane someone was in my seat ! I was moved to another seat. The food choice is quite limited and I feel that an option of a muffin for breakfast snack would be welcomed, not everyone wants egg or bacon wrap. The choice of entertainment is good, plenty to keep you busy on a long haul flight. I liked the option offered to have the cabin bag checked into the hold, it saved me as an older, lone traveller lifting my case into the overhead locker or finding there was no space.

good service from crew. Before the would have an option between cookies or nuts as snacks.. Now, there are only cookies. too bad. People who can not have sugar don't have a choice.

As with every airline the seats are not built for tall people.

I’m hoping for WiFi included. Everything else was very good

Rude security cunts. However the lady that issued my boarding ticket when I was flying back from New York was lovely & helpful!!

Appalling! The flight was delayed by 3.5 hours and the American Airlines staff at the airport where nit very helpful. Once boarded, the flight crew were unhelpful, the food was poor and the aircraft was tatty.

Overall not great . We had a 4 four hour plus delay on returning and communication about the changes was poor . No updates were given on the website or by e-mail . We subsequently missed a connection , were our on a later flight and then missed all public transport for our onward journey home. Needed to hire a car at some expense . One member if staff was rude at the gate

This flight was cancelled at the last minute. We were rebooked on another flight but a day later. We lost a day of our vacation and paid for a night in a hotel we couldn’t use. The flights we were rebooked on (both American) messed up our seating on both flights-we didn’t get the seats we had paid for. All in all, a terrible experience.

Lost our bags in Heathrow, We didn’t receive bags in Mallorca for 3 days, out of a 7 day cycling vacation. Really inconvenient and disappointing!

We missed the flight to Barcelona because the flight from Baltimore was delayed. We flew on Vueling VW6653. Our luggage didn’t arrive. Please help us get our luggage. We are staying at Hotel Gran Via in Barcelona

The seats were tiny, being of a fairly petite build, I don’t usually expect to feel crammed and cramped in a seat, but I definitely was on this flight. I couldn’t even bend over to get anything out from under the seat in front and getting up to go to the bathroom at night with the seat backs reclined was nearly impossible. I had to do gymnastics to get over and out. For an airline that does long flights overnight, it’s kind of ridiculous.

Not connecting flights. Missed my flight from Dublin to Liverpool because I arrived at Dublin one hour too late. For this mistake, they offered me a flight from Dublin to Manchester. Thats great and all, but I waste time and money to commute to Liverpool. Be sure to check the time of your connecting flights, because they sure don’t when they sell it to you

Excellent! Great flight attendants, good food (in business class, at least), very comfortable. Touchscreen and remote wasn’t great.

In economy and food was ok, but with limited leg space (and I was in a 2 seat configuration) it was difficult to eat with a tiny seat tray. I spilt wine on my trousers. First time on British Air (I usually fly Turkish Air) and in a 777. Heathrow was pleasant but changing terminals awkward.

Starting with the flight Cairo to London the plain was so poor no entertainment at all uncomfortable seats although it’s 5 hours long,then an American airline plain took me from London to Miami it was a bad experience the crew most of flight time not available and they asked us to help our selves for any snacks if we need. From Miami to London actually was perfect flight with a huge plain and perfect crew but from London to Cairo was horrible plain with stiff fixed seats not movable no entertainment or wi fi very poor Menu which is unacceptable for a business class

I've done hundreds of flights in my life, and this flight was one of the best I've ever taken, From beginning to end, everything went smoothly, professionally, and with a smile and friendly attitude from all employees I interacted with. The food was delicious (and free), as were the drinks. There was just a genial and effective way in the way that British Airways organized the flight -that reminded of days in the 70's, 80's, and 90's, when flying was a fun, and exciting adventure. I enjoyed and had confidence in the abilities of the flight crew, I'll be flying British Airways several more times this summer. Thank you so much for the great experience! Cheryl Olso

My baggage did not arrived with me. Took 3 days to get it after so may calls and follow up

Book cheap flights from Baltimore to Porto

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Baltimore to Porto found on KAYAK in the last 72 hours.
7/10Wed
2 stops
42h 57mBWI-OPO
$365
7/15Mon
1 stopPLAY
20h 10mBWI-OPO
$404
7/10Wed
3 stops
30h 30mBWI-OPO
$406
7/11Thu
2 stops
17h 35mBWI-OPO
$417
8/7Wed
3 stops
18h 35mBWI-OPO
$418
6/22Sat
3 stops
56h 56mBWI-OPO
$419
8/4Sun
2 stopsUnited Airlines
15h 05mBWI-OPO
$522
6/3Mon
1 stopPLAY
20h 10mBWI-OPO
$523
7/15Mon
2 stopsUnited Airlines
22h 15mBWI-OPO
$528
8/8Thu
1 stopBritish Airways
31h 15mBWI-OPO
$1,381

Search by stops

Search by airline

Search by price

Last minute flights from Baltimore to Porto

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Baltimore to Porto that are departing in the next 10 days.
5/14Tue
multi-stop
29h 31mBWI-OPO
5/22Wed
multi-stop
30h 35mOPO-BWI
$1,008
5/14Tue
multi-stopDelta
15h 12mBWI-OPO
5/22Wed
multi-stopDelta
19h 12mOPO-BWI
$1,128
5/14Tue
multi-stopDelta
15h 12mBWI-OPO
5/22Wed
multi-stopDelta
19h 12mOPO-BWI
$1,218
5/14Tue
multi-stop
29h 31mBWI-OPO
5/22Wed
multi-stop
16h 25mOPO-BWI
$1,259
5/14Tue
multi-stopDelta
15h 12mBWI-OPO
5/26Sun
multi-stopDelta
18h 37mOPO-BWI
$1,260
5/14Tue
multi-stopAir France
24h 18mBWI-OPO
5/26Sun
multi-stopAir France
36h 22mOPO-BWI
$1,299
5/14Tue
multi-stopBritish Airways
17h 00mBWI-OPO
5/22Wed
multi-stopBritish Airways
28h 20mOPO-BWI
$2,418
5/14Tue
multi-stopAmerican Airlines
25h 05mBWI-OPO
5/16Thu
multi-stopAmerican Airlines
16h 11mOPO-BWI
$8,380

Search by stops

Search by airline

Search by price

Baltimore - Porto Flights

Departure:

Baltimore (undefined)United States

Destination:

Porto (OPO)Portugal

Return flight deals:

Porto - Baltimore

Cabin classes:

Browse destinations: