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Find cheap flights from District of Columbia to Portugal from $298

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 8/15. 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 6/7
Fri 6/14

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Good to know

Low season

January

High season

July

Cheapest flight

$298
Best time to beat the crowds with an average 28% 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

10/13Sun
1 stopPLAY
20h 30mIAD-LIS
10/21Mon
1 stopPLAY
25h 10mLIS-IAD
$398
11/3Sun
1 stopPLAY
21h 10mIAD-LIS
11/15Fri
1 stopPLAY
24h 40mLIS-IAD
$401
9/29Sun
1 stopTAP AIR PORTUGAL
13h 45mIAD-OPO
10/16Wed
1 stopTAP AIR PORTUGAL
26h 20mOPO-IAD
$403
9/29Sun
1 stopTAP AIR PORTUGAL
15h 40mIAD-OPO
10/16Wed
1 stopTAP AIR PORTUGAL
15h 20mOPO-IAD
$419
10/16Wed
1 stopRoyal Air Maroc
10h 00mIAD-LIS
10/31Thu
1 stopRoyal Air Maroc
29h 35mLIS-IAD
$538
9/20Fri
1 stopAir France
16h 05mIAD-OPO
9/27Fri
1 stopAir France
11h 55mOPO-IAD
$553
10/23Wed
1 stopRoyal Air Maroc
10h 00mIAD-LIS
10/31Thu
1 stopRoyal Air Maroc
29h 35mLIS-IAD
$555
8/20Tue
1 stopDelta
16h 05mIAD-OPO
8/29Thu
1 stopDelta
14h 05mOPO-IAD
$555
10/7Mon
2 stopsDelta
17h 15mIAD-OPO
10/23Wed
1 stopDelta
11h 55mOPO-IAD
$558
9/27Fri
2 stopsAir France
38h 10mIAD-OPO
10/16Wed
1 stopAir France
28h 50mOPO-IAD
$616

Search by stops

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Recent one-way flight deals

8/15Thu
1 stopPLAY
20h 30mIAD-LIS
$298
8/5Mon
1 stopPLAY
20h 10mIAD-OPO
$316
10/1Tue
2 stops
19h 25mIAD-LIS
$329
9/26Thu
2 stops
41h 05mIAD-LIS
$330
8/16Fri
1 stopRoyal Air Maroc
10h 00mIAD-LIS
$360
9/16Mon
1 stopRoyal Air Maroc
15h 20mIAD-LIS
$361
10/2Wed
nonstopTAP AIR PORTUGAL
7h 30mIAD-LIS
$379
10/1Tue
nonstopTAP AIR PORTUGAL
7h 30mIAD-LIS
$380
9/30Mon
1 stopScandinavian Airlines
22h 20mIAD-LIS
$408
10/1Tue
1 stopScandinavian Airlines
17h 15mIAD-LIS
$409

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Search by price

Last minute flights from District of Columbia to Portugal

Last minute flight, train and bus deals

5/13Mon
nonstop
7h 15mIAD-LIS
5/22Wed
multi-stop
39h 35mLIS-IAD
$997
5/13Mon
nonstop
7h 15mIAD-LIS
5/23Thu
multi-stop
16h 45mLIS-IAD
$998
5/10Fri
multi-stopTAP AIR PORTUGAL
21h 20mIAD-OPO
5/19Sun
multi-stopTAP AIR PORTUGAL
26h 55mOPO-IAD
$1,016
5/13Mon
multi-stopRoyal Air Maroc
15h 20mIAD-LIS
6/11Tue
multi-stopRoyal Air Maroc
29h 40mLIS-IAD
$1,060
5/10Fri
multi-stopRoyal Air Maroc
15h 20mIAD-LIS
5/14Tue
multi-stopRoyal Air Maroc
29h 40mLIS-IAD
$1,072
5/13Mon
nonstopTAP AIR PORTUGAL
7h 15mIAD-LIS
5/24Fri
nonstopTAP AIR PORTUGAL
8h 20mLIS-IAD
$1,081
5/12Sun
multi-stopAir France
13h 10mIAD-OPO
5/19Sun
multi-stopAir France
30h 01mOPO-IAD
$1,155
5/10Fri
multi-stopSWISS
30h 10mIAD-OPO
5/19Sun
multi-stopSWISS
30h 40mOPO-IAD
$1,205
5/10Fri
multi-stopSWISS
19h 00mIAD-OPO
5/19Sun
multi-stopSWISS
30h 40mOPO-IAD
$1,419
5/13Mon
multi-stopAir France
21h 21mIAD-LIS
5/19Sun
multi-stopAir France
21h 05mLIS-IAD
$1,560

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Flights to Portugal

Return flight deals:

Portugal - District of Columbia

Cabin classes:

$5,346
$2,407
$2,078
$491