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Find cheap flights from District of Columbia to Portugal from $272

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from District of Columbia to Portugal departing on 8/4. 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
sáb 7/6
sáb 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

$272
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 Washington Dulles Airport to Porto

FAQs for booking flights from District of Columbia to Portugal

  • How does KAYAK find such low prices on flights from District of Columbia 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 District of Columbia to Portugal.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Portugal from District of Columbia 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 District of Columbia 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 District of Columbia with another airline.

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

Recent round-trip flight deals

7/30ter
1 stopTAP AIR PORTUGAL
17h 05mIAD-OPO
9/25qua
1 stopTAP AIR PORTUGAL
13h 40mOPO-IAD
$401
9/30seg
1 stopTAP AIR PORTUGAL
20h 10mIAD-OPO
10/16qua
1 stopTAP AIR PORTUGAL
21h 25mOPO-IAD
$416
9/4qua
1 stop
19h 05mIAD-LIS
9/11qua
2 stops
20h 35mLIS-IAD
$434
10/31qui
1 stopPLAY
21h 10mIAD-LIS
11/11seg
1 stopPLAY
24h 40mLIS-IAD
$444
11/7qui
1 stopPLAY
21h 10mIAD-LIS
11/11seg
1 stopPLAY
24h 40mLIS-IAD
$476
10/19sáb
2 stopsBritish Airways
24h 42mDCA-LIS
10/26sáb
1 stopBritish Airways
10h 31mLIS-DCA
$517
11/27qua
2 stopsUnited Airlines
17h 05mIAD-OPO
12/2seg
1 stopUnited Airlines
32h 20mOPO-IAD
$519
11/27qua
2 stops
17h 05mIAD-OPO
12/2seg
2 stops
34h 08mOPO-IAD
$524
11/21qui
2 stopsUnited Airlines
16h 50mIAD-OPO
11/26ter
1 stopUnited Airlines
14h 50mOPO-IAD
$592
10/30qua
1 stopBritish Airways
14h 57mDCA-LIS
11/9sáb
1 stopBritish Airways
11h 35mLIS-DCA
$701

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Recent one-way flight deals

8/4dom
1 stopTAP AIR PORTUGAL
10h 50mIAD-OPO
$272
8/4dom
2 stops
43h 50mIAD-OPO
$273
10/13dom
1 stopPLAY
20h 30mIAD-LIS
$334
9/4qua
1 stopRoyal Air Maroc
10h 00mIAD-LIS
$363
8/30sex
1 stopRoyal Air Maroc
15h 20mIAD-LIS
$377
9/14sáb
1 stopPLAY
20h 10mIAD-OPO
$381
11/13qua
2 stopsAir Canada
16h 05mIAD-OPO
$471
9/23seg
2 stopsIberia
27h 50mIAD-OPO
$473
9/24ter
2 stopsAir Canada
20h 35mIAD-OPO
$506
11/5ter
2 stopsIberia
14h 40mDCA-OPO
$509

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Search by price

Last minute flights from District of Columbia to Portugal

Last minute flight, train and bus deals

6/11ter
multi-stop
25h 26mDCA-LIS
7/2ter
multi-stop
24h 39mLIS-DCA
$750
6/10seg
multi-stopBritish Airways
23h 10mDCA-LIS
6/19qua
multi-stopBritish Airways
10h 53mLIS-DCA
$754
6/8sáb
multi-stopDelta
17h 27mIAD-OPO
6/21sex
multi-stopDelta
14h 55mOPO-IAD
$828
6/10seg
multi-stopDelta
17h 27mIAD-OPO
6/16dom
multi-stopDelta
15h 35mOPO-IAD
$830
6/8sáb
multi-stopKLM
11h 50mIAD-OPO
6/21sex
multi-stopKLM
14h 55mOPO-IAD
$836
6/10seg
multi-stopAir France
30h 05mIAD-OPO
6/16dom
multi-stopAir France
28h 50mOPO-IAD
$883
6/9dom
multi-stopTAP AIR PORTUGAL
15h 30mIAD-OPO
6/26qua
multi-stopTAP AIR PORTUGAL
15h 20mOPO-IAD
$887
6/11ter
multi-stopKLM
11h 50mIAD-OPO
6/21sex
multi-stopKLM
14h 55mOPO-IAD
$891
6/9dom
multi-stopTAP AIR PORTUGAL
10h 20mIAD-OPO
6/14sex
multi-stopTAP AIR PORTUGAL
12h 25mOPO-IAD
$895
6/7sex
multi-stopAir France
16h 05mIAD-OPO
8/15qui
multi-stopAir France
11h 55mOPO-IAD
$1,047

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Flights to Portugal

Return flight deals:

Portugal - District of Columbia

Cabin classes:

$5,346
$1,384
$1,555
$463