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Find cheap flights from District of Columbia to Portugal from $295

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 7/14. 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
Fri 7/5
Fri 7/12

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Good to know

Low season

January

High season

July

Cheapest flight

$295
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 Lisbon

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

9/8Sun
1 stopPLAY
20h 30mIAD-LIS
9/16Mon
1 stopPLAY
25h 10mLIS-IAD
$407
11/3Sun
1 stopPLAY
21h 10mIAD-LIS
11/11Mon
1 stopPLAY
24h 40mLIS-IAD
$422
10/7Mon
1 stopTAP AIR PORTUGAL
10h 25mIAD-OPO
10/14Mon
1 stopTAP AIR PORTUGAL
21h 25mOPO-IAD
$427
10/6Sun
1 stopTAP AIR PORTUGAL
10h 20mIAD-OPO
10/15Tue
1 stopTAP AIR PORTUGAL
13h 20mOPO-IAD
$430
9/22Sun
1 stopBrussels Airlines
12h 10mIAD-LIS
9/28Sat
1 stopBrussels Airlines
30h 25mLIS-IAD
$433
9/4Wed
1 stop
19h 05mIAD-LIS
9/11Wed
2 stops
20h 35mLIS-IAD
$434
11/8Fri
1 stopKLM
19h 05mIAD-OPO
11/13Wed
1 stopKLM
12h 40mOPO-IAD
$435
9/28Sat
1 stopKLM
23h 50mIAD-OPO
10/5Sat
1 stopKLM
23h 40mOPO-IAD
$569
9/27Fri
2 stops
27h 50mIAD-OPO
10/15Tue
2 stops
28h 55mOPO-IAD
$587
8/18Sun
1 stopBrussels Airlines
12h 20mIAD-FAO
8/25Sun
1 stopBrussels Airlines
31h 00mFAO-IAD
$800

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Recent one-way flight deals

7/14Sun
3 stops
57h 55mIAD-LIS
$295
9/30Mon
2 stops
17h 40mIAD-LIS
$296
11/5Tue
nonstopTAP AIR PORTUGAL
7h 05mIAD-LIS
$329
11/13Wed
1 stopTAP AIR PORTUGAL
21h 30mIAD-FNC
$332
10/13Sun
1 stopPLAY
20h 30mIAD-LIS
$334
7/19Fri
1 stopPLAY
20h 10mIAD-OPO
$357
8/30Fri
1 stopRoyal Air Maroc
15h 20mIAD-LIS
$362
11/20Wed
1 stopRoyal Air Maroc
10h 05mIAD-LIS
$363
7/21Sun
2 stopsAmerican Airlines
21h 41mDCA-OPO
$484
7/21Sun
2 stopsAmerican Airlines
38h 45mIAD-OPO
$496

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Last minute flights from District of Columbia to Portugal

Last minute flight, train and bus deals

6/6Thu
multi-stopAir France
16h 05mIAD-OPO
6/12Wed
multi-stopAir France
14h 55mOPO-IAD
$824
6/10Mon
multi-stopDelta
17h 27mIAD-OPO
6/16Sun
multi-stopDelta
14h 55mOPO-IAD
$828
6/9Sun
multi-stopTAP AIR PORTUGAL
10h 20mIAD-OPO
6/14Fri
multi-stopTAP AIR PORTUGAL
12h 25mOPO-IAD
$895
6/9Sun
nonstop
7h 30mIAD-LIS
6/12Wed
multi-stop
17h 55mLIS-IAD
$937
6/6Thu
multi-stopUnited Airlines
11h 55mDCA-OPO
6/12Wed
multi-stopUnited Airlines
12h 27mOPO-DCA
$948
6/9Sun
nonstop
7h 30mIAD-LIS
6/14Fri
multi-stop
36h 00mLIS-IAD
$961
6/9Sun
multi-stopAir Canada
24h 16mDCA-OPO
6/16Sun
multi-stopAir Canada
33h 02mOPO-DCA
$963
6/6Thu
multi-stopUnited Airlines
11h 55mDCA-OPO
6/12Wed
multi-stopUnited Airlines
16h 56mOPO-DCA
$989
6/8Sat
multi-stopTAP AIR PORTUGAL
13h 40mIAD-OPO
6/16Sun
multi-stopTAP AIR PORTUGAL
21h 20mOPO-IAD
$1,017
6/8Sat
multi-stopAir Canada
21h 30mIAD-OPO
6/16Sun
multi-stopAir Canada
19h 29mOPO-IAD
$1,078

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Flights to Portugal

Return flight deals:

Portugal - District of Columbia

Cabin classes:

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