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Find cheap flights from Porto to Maryland from $310

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Porto to Maryland departing on 8/24. 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 6/2
Sun 6/9

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Best Maryland Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Good to know

Low season

February

High season

December

Cheapest flight

$310
Best time to beat the crowds but there is an average 31% increase in price.
Most popular time to fly and prices are also 0% lower on average.
Flight from Porto to Washington Dulles Airport

FAQs - booking Maryland flights

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

    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 Porto to Maryland.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Maryland from Porto 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 Porto to Maryland?

    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 Maryland with an airline and back to Porto with another airline.

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

    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 Maryland from Porto up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Maryland

  • Morning departure is around 4% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top airlines flying from Porto to Maryland

 
Need help choosing which airline to fly with from Porto to Maryland? 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.
7.0
LufthansaOverall score based on 7727 reviews
6.9Comfort
7.7Crew
7.2Boarding
6.7Entertainment
6.5Food
Airline reviews

It was freezing in the airplane. Everyone was wearing everything they had with them. The crew acknowledged it was cold, but did nothing about it

4.0 OkayAnonymous, May 2024LIS - IAD
Read more about Lufthansa reviews

It was freezing in the airplane. Everyone was wearing everything they had with them. The crew acknowledged it was cold, but did nothing about it

The flight attendants were superb and the service was outstanding. Some passengers with small children were very rude and inconsiderate, kids were constantly crying and some were running around the aisle unsupervised.

Terrible. There was a rattling noise the whole flight. The internet didn't work after I paid. Boarding is very disorganized.

Horrible flight attendant in back of economy that screamed at me, have already reported to United. Horrible food - for Gluten free, why would you assume the person is vegetarian? I was served some kind of horrible curry bean paste and multiple cold rolls and soggy vegetables with no seasoning... um no!

The crew member put her luggage and boxes behind my seat so I was able to recline while the passenger in front of me did for 8 hours. My knees were forced against the seat for hours :(. Dude sitting next to me hasn't showered in weeks so I almost threw up.

Sorry my last review for prg to fra was for this flight. My prg to fra flight was fine but my second flight back to Washington DC was with a slow awful crew who wouldn’t come in a timely manner to take trash and take trash before serving coffee tea and was shoving other people’s bottles of water on me when we were not traveling together

Lufthansa was amazing. Definitely upgrade your seat if you can swing it - they take very good care of their passengers. Customs in DC is nothing short of a nightmare though. Stood in line waiting to go back through security for 30 minutes, had to RUN through and across two terminals to make my connection and only had 5 minutes to spare. Terrible. Very very poor coordination by the airport staff and CBP.

I was ver pleased with the service all the way through

I always try to book flights that don’t charge for baggage. Yet I was charged $75 for this flight.

Trouble keeps changing the time and I was booked different flight without knowing it was bad experience

Perfect timing, perfect departure, lovely crew on the ground and in the air.

3 hours delay, non comunicated until past the time of original boarding, no assistance, witnessed land crew shouting at a passenger

Good flight. Take off a little late but make up the time

very delayed boarding; the crew started the service extremely late and everything felt like they didn't want to be there and do their jobs; the pilot changed her mind about landing :))))))))) and we spent 10 more minutes circling around the airport before landing, eventually!!! lack of communication = lack of professionalism. she could have said 'ladies and gentlemen, due to us having taken off very late, we have lost our landing permissions and we'll have to wait some more', but she chose to shut up. big mistake that reflects poorly on the airline and herself.

Everything’s went straight forward, no issues, good service and friendly crew

Very unpleasant staff, disgusting service, ignoring requests, refusal to help

Flights were on time. The crew was efficient and friendly.

Em relação a Ryanair, ter de ir ao check-in só para carimbar o cartão de embarque não foi muito fácil, são muito demorados, e atrasam a passagem do controlo de passaporte... E cheguei com 2 horas de antecedência

O voo atrasou um bom bocado A tripulação não era comunicativa,não fez vendas... Não abordava os passageiros... A 1°vez que me acontece tal coisa 🤷‍♀️

Easy process and good flight experience The food good be better

Book cheap flights from Porto to Maryland

Recent round-trip flight deals

5/30Thu
1 stopIberia
11h 55mOPO-IAD
6/6Thu
1 stopIberia
10h 00mIAD-OPO
$500
5/30Thu
1 stopIberia
11h 55mOPO-IAD
6/4Tue
1 stopIberia
18h 10mIAD-OPO
$501
6/25Tue
2 stopsDelta
19h 07mOPO-BWI
7/5Fri
2 stopsDelta
17h 24mBWI-OPO
$511
6/26Wed
2 stopsDelta
19h 07mOPO-BWI
7/6Sat
2 stopsDelta
16h 23mBWI-OPO
$520
6/24Mon
1 stopKLM
24h 05mOPO-IAD
7/4Thu
1 stopKLM
17h 15mIAD-OPO
$520
6/26Wed
2 stopsKLM
16h 09mOPO-DCA
7/4Thu
2 stopsKLM
15h 10mDCA-OPO
$534
5/29Wed
1 stopUnited Airlines
12h 30mOPO-IAD
6/3Mon
1 stopUnited Airlines
11h 12mIAD-OPO
$537
8/28Wed
1 stopLufthansa
18h 10mOPO-IAD
9/7Sat
1 stopLufthansa
20h 00mIAD-OPO
$543
5/25Sat
1 stopUnited Airlines
12h 27mOPO-DCA
6/2Sun
1 stopUnited Airlines
9h 35mDCA-OPO
$544
5/28Tue
2 stopsLufthansa
14h 50mOPO-IAD
6/5Wed
1 stopLufthansa
20h 00mIAD-OPO
$563

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Recent one-way flight deals

8/24Sat
1 stopPLAY
25h 45mOPO-IAD
$310
5/23Thu
1 stopPLAY
25h 30mOPO-IAD
$311
5/10Fri
2 stops
50h 30mOPO-BWI
$327
5/10Fri
3 stops
48h 45mOPO-BWI
$331
8/20Tue
1 stopPLAY
25h 45mOPO-IAD
$338
6/18Tue
1 stopRoyal Air Maroc
29h 20mOPO-IAD
$405
10/1Tue
1 stopRoyal Air Maroc
29h 20mOPO-IAD
$458
10/21Mon
2 stopsIberia
24h 00mOPO-IAD
$488
10/1Tue
2 stopsIberia
15h 59mOPO-DCA
$506
7/19Fri
2 stopsLufthansa
18h 45mOPO-IAD
$834

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Porto - Maryland Flights

Departure:

Porto (OPO)Portugal

Return flight deals:

Maryland - Porto

Cabin classes: