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$241+ Cheap flights from District of Columbia to Portugal

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — LIS
ago. 5 — ago. 121
mar. 8/5
mar. 8/12
1 adult, Economy
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Cheap flight deals from District of Columbia to Portugal

Keep the following information in mind while searching for District of Columbia to Portugal flight deals. Data was last updated julio 31, 2025.

Round-trip from

$545
(oojo)

One-way from

$241
(Mytrip)

Popular in

December

Cheapest in

February

Average price

$1,053

Good round-trip deal

$516 or less

Good one-way deal

$305 or less
From District of Columbia to Portugal
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One-way flight from District of Columbia to Portugal
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Highest demand for flights based on searches. 2% potential increase in price ($20 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($36 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from District of Columbia to Portugal.
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Price to beat on a one-way flight from District of Columbia to Portugal.
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Find flight deals from District of Columbia to Portugal

Cheapest flights from District of Columbia to Portugal
Explore the most affordable flight options available from District of Columbia to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 31, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/25:30 pmIAD - FNC
1 stop11h 40mTAP AIR PORTUGAL
lun. 12/84:10 amFNC - IAD
1 stop15h 25mTAP AIR PORTUGAL
Deal found 7/29$531
This oojo deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/710:20 pmIAD - FAO
1 stop14h 00mTAP AIR PORTUGAL
mié. 10/156:05 amFAO - IAD
1 stop14h 15mTAP AIR PORTUGAL
Deal found 7/31$545
This FlightHub deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/610:05 pmIAD - FAO
1 stop29h 45mScandinavian Airlines
mar. 10/2810:50 amFAO - IAD
1 stop35h 25mScandinavian Airlines
Deal found 7/30$557
This Mytrip deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/2510:20 pmIAD - OPO
2 stops19h 05mMultiple Airlines
mié. 9/311:35 amOPO - IAD
2 stops32h 45mMultiple Airlines
Deal found 7/30$569
This Lufthansa deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/66:00 pmIAD - OPO
1 stop12h 40mLufthansa
lun. 11/174:15 pmOPO - IAD
1 stop28h 35mLufthansa
Deal found 7/31$571
This Iberia deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/194:35 pmIAD - OPO
1 stop10h 00mIberia
mié. 10/294:40 pmOPO - IAD
2 stops27h 55mIberia
Deal found 7/31$574
This United Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/241:00 pmIAD - OPO
1 stop15h 20mUnited Airlines
mar. 10/76:00 amOPO - IAD
1 stop14h 50mUnited Airlines
Deal found 7/31$575
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/82:00 pmDCA - OPO
2 stops15h 30mDelta
mié. 11/1911:25 amOPO - DCA
2 stops16h 39mDelta
Deal found 7/31$577
This Air Canada deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/208:16 amIAD - OPO
2 stops20h 04mAir Canada
jue. 9/412:10 pmOPO - IAD
2 stops28h 23mAir Canada
Deal found 7/31$578
This CheapOair deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 8/1712:55 pmDCA - OPO
2 stops39h 40mAir Canada
jue. 9/412:10 pmOPO - DCA
2 stops28h 58mAir Canada
Deal found 7/31$578
This Iberia deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/12:59 pmDCA - OPO
2 stops21h 01mIberia
mié. 11/128:20 amOPO - DCA
2 stops15h 50mIberia
Deal found 7/31$579
This Mytrip deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/69:40 amDCA - OPO
2 stops23h 30mMultiple Airlines
mar. 9/2310:50 pmOPO - DCA
2 stops28h 01mMultiple Airlines
Deal found 7/31$581

Cheapflights Fare Finder

 
Customize your flight search to find flights from District of Columbia to Portugal that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated julio 31, 2025.
Use the filters below to find and compare flights from District of Columbia to Portugal that are best for you.

Fly from

District of Columbia

Fly to

Portugal

Route

Depart

Return

Price

Washington, D.C.Faro

IAD - FAO

IADFAO

Washington, D.C. Dulles Intl

mar. 10/7

10:20 pm-5:20 pm

1 stop14h 00m

Faro

mié. 10/15

6:05 am-3:20 pm

1 stop14h 15m

$545

Washington, D.C.Faro

IAD - FAO

IADFAO

Washington, D.C. Dulles Intl

lun. 10/6

10:05 pm-8:50 am

1 stop29h 45m

Faro

mar. 10/28

10:50 am-6:15 pm

1 stop35h 25m

$557

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

mié. 10/1

1:30 pm-3:50 pm

1 stop21h 20m

Porto

mié. 10/8

4:50 pm-11:45 am

1 stop23h 55m

$568

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

lun. 8/25

10:20 pm-10:25 pm

2 stops19h 05m

Porto

mié. 9/3

11:35 am-3:20 pm

2 stops32h 45m

$569

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

sáb. 10/25

5:16 pm-1:50 pm

2 stops15h 34m

Porto

mar. 11/4

6:00 am-3:50 pm

1 stop14h 50m

$572

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

mié. 8/20

8:16 am-9:20 am

2 stops20h 04m

Porto

jue. 9/4

12:10 pm-11:33 am

2 stops28h 23m

$578

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

mié. 9/24

12:52 pm-9:20 am

2 stops15h 28m

Porto

mié. 10/1

6:00 am-3:50 pm

1 stop14h 50m

$579

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

sáb. 9/6

9:40 am-2:10 pm

2 stops23h 30m

Porto

mar. 9/23

10:50 pm-9:51 pm

2 stops28h 01m

$581

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

lun. 9/15

5:45 pm-10:00 am

1 stop11h 15m

Porto

lun. 9/22

8:50 am-3:20 pm

1 stop11h 30m

$582

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

lun. 9/22

4:35 pm-9:35 am

1 stop12h 00m

Porto

mié. 10/1

6:00 am-5:47 pm

2 stops16h 47m

$585

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 60 results
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Best time to book a flight from District of Columbia to Portugal

Have a flexible travel schedule? Discover the best time to fly to Portugal from District of Columbia with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from District of Columbia to Portugal

What is the cheapest month to book a flight from District of Columbia to Portugal?

Currently, January is the cheapest month in which you can book a flight from District of Columbia to Portugal (average of $612). Flying from District of Columbia to Portugal in June is currently the most expensive (average of $1,129). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from DC to PT?

Find hourly flight availability from District of Columbia to Portugal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated julio 31, 2025.

When flying from District of Columbia to Portugal, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Portugal

Get insights into the airlines that provide service to Portugal. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portugal. Reviews last updated julio 31, 2025.
Read through reviews of airlines operating flights from District of Columbia to Portugal, such as Delta, KLM, and Austrian Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,383 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Austrian Airlines
7.6
Good
823 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
SWISS
7.5
Good
1,686 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,900 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from District of Columbia to Portugal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from District of Columbia to Portugal one-way?

    One-way options have recently been found by users for as low as $254 on TAP AIR PORTUGAL. Other airlines that offer cheap prices include Iberia from $322 and United Airlines from $359 one-way.

  • Can I find deals for flights from District of Columbia to Portugal that include hotel bookings?

    Yes. In addition to deals on District of Columbia to Portugal flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from District of Columbia to Portugal?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from District of Columbia to Portugal.

  • Can I find deals for business class flights from District of Columbia to Portugal?

    Yes. Cheapflights offers flight deals from District of Columbia to Portugal by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from District of Columbia to Portugal?

    Currently, January is the cheapest month in which you can book a flight from District of Columbia to Portugal (average of $612). Flying from District of Columbia to Portugal in June is currently the most expensive (average of $1,129). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for District of Columbia to Portugal

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from District of Columbia to Portugal

Discover the top 10 airlines that operate flights from District of Columbia to Portugal. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated julio 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest$333Average$382FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$418Average$1,096FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$424Average$763FlexibilityNo cancel feeOn-time75%
TAP AIR PORTUGALCheapest$473Average$920FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$508Average$732FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$510Average$926FlexibilityNo cancel feeOn-time70%
IberiaCheapest$515Average$766FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$520Average$1,116FlexibilityNo cancel feeOn-time69%
SWISSCheapest$542Average$651FlexibilityNo cancel feeOn-time79%
Royal Air MarocCheapest$552Average$643FlexibilityNo cancel feeOn-time75%

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