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Find cheap flights from Maryland to Portugal from $270

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Maryland to Portugal departing on 9/28. 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
Sat 7/6
Sat 7/13

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In the last 7 days travelers have searched 43,995,393 times on KAYAK, and here is why:

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Good to know

Low season

January

High season

July

Cheapest flight

$270
Best time to beat the crowds with an average 27% drop in price.
Most popular time to fly with an average 31% increase in price.
Flight from Philadelphia to Porto

FAQs for booking flights from Maryland to Portugal

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

    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 Maryland to Portugal.

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

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

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

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

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

See more FAQs

Book cheap flights from Maryland to Portugal

Recent round-trip flight deals

10/13Sun
nonstopBritish Airways
6h 50mPHL-LIS
10/20Sun
1 stopBritish Airways
28h 20mLIS-PHL
$366
10/13Sun
1 stopBritish Airways
23h 45mPHL-LIS
10/20Sun
1 stopBritish Airways
28h 20mLIS-PHL
$384
7/30Tue
1 stopTAP AIR PORTUGAL
17h 05mIAD-OPO
9/25Wed
1 stopTAP AIR PORTUGAL
13h 40mOPO-IAD
$401
9/30Mon
1 stopTAP AIR PORTUGAL
20h 10mIAD-OPO
10/16Wed
1 stopTAP AIR PORTUGAL
21h 25mOPO-IAD
$416
9/4Wed
1 stop
19h 05mIAD-LIS
9/11Wed
2 stops
20h 35mLIS-IAD
$434
10/31Thu
1 stopPLAY
21h 10mIAD-LIS
11/11Mon
1 stopPLAY
24h 40mLIS-IAD
$444
11/27Wed
2 stopsKLM
16h 10mBWI-OPO
12/2Mon
2 stopsKLM
16h 31mOPO-BWI
$453
11/7Thu
1 stopPLAY
21h 10mIAD-LIS
11/11Mon
1 stopPLAY
24h 40mLIS-IAD
$476
11/12Tue
1 stop
12h 30mPHL-LIS
11/25Mon
1 stop
21h 45mLIS-PHL
$520
11/25Mon
2 stopsKLM
17h 10mPHL-OPO
12/3Tue
2 stopsKLM
17h 36mOPO-PHL
$564

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Recent one-way flight deals

9/28Sat
2 stops
45h 40mPHL-OPO
$270
8/4Sun
1 stopTAP AIR PORTUGAL
10h 50mIAD-OPO
$272
8/19Mon
1 stopPLAY
20h 10mBWI-OPO
$333
10/13Sun
1 stopPLAY
20h 30mIAD-LIS
$334
9/4Wed
1 stopRoyal Air Maroc
10h 00mIAD-LIS
$363
8/30Fri
1 stopRoyal Air Maroc
15h 20mIAD-LIS
$377
11/13Wed
2 stopsAir Canada
16h 05mIAD-OPO
$471
9/23Mon
2 stopsIberia
27h 50mIAD-OPO
$473
9/24Tue
2 stopsAir Canada
20h 35mIAD-OPO
$506
11/5Tue
2 stopsIberia
14h 40mDCA-OPO
$509

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Last minute flights from Maryland to Portugal

Last minute flight, train and bus deals

6/9Sun
multi-stopUnited Airlines
22h 45mPHL-OPO
6/25Tue
multi-stopUnited Airlines
19h 18mOPO-PHL
$706
6/8Sat
multi-stopUnited Airlines
32h 49mPHL-OPO
6/18Tue
multi-stopUnited Airlines
10h 55mOPO-PHL
$731
6/11Tue
multi-stop
25h 26mDCA-LIS
7/2Tue
multi-stop
24h 39mLIS-DCA
$750
6/10Mon
multi-stopBritish Airways
23h 10mDCA-LIS
6/19Wed
multi-stopBritish Airways
10h 53mLIS-DCA
$754
6/8Sat
multi-stopBritish Airways
23h 15mDCA-LIS
6/18Tue
multi-stopBritish Airways
13h 52mLIS-DCA
$801
6/8Sat
multi-stopDelta
17h 27mIAD-OPO
6/21Fri
multi-stopDelta
14h 55mOPO-IAD
$828
6/10Mon
multi-stopDelta
17h 27mIAD-OPO
6/16Sun
multi-stopDelta
15h 35mOPO-IAD
$830
6/8Sat
multi-stopKLM
11h 50mIAD-OPO
6/21Fri
multi-stopKLM
14h 55mOPO-IAD
$836
6/11Tue
multi-stop
26h 15mIAD-LIS
6/21Fri
multi-stop
24h 35mLIS-IAD
$844
6/11Tue
multi-stopKLM
11h 50mIAD-OPO
6/21Fri
multi-stopKLM
14h 55mOPO-IAD
$891

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Flights to Portugal

Return flight deals:

Portugal - Maryland

Cabin classes: