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$334+ Cheap flights from Washington, D.C. (WAS) to Porto (OPO)

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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — OPO
Dec 24 — Dec 311
Tue 12/24
Tue 12/31
1 adult, Economy
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The best prices from Washington, D.C. to Porto are usually found in January or February, booked 74 days in advance, depart on a Sunday or Monday and return on a Thursday

Cheap flight deals from Washington, D.C. to Porto

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) to Porto (OPO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 19, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$502
(Mytrip)

One-way from

$436
(Kiwi.com)

Popular in

May

Cheapest in

January

Average price

$698
Provider with most accurate pricing for Washington, D.C. (WAS)-Porto flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Porto flights.
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From Washington, D.C. (WAS) to Porto
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One-way flight from Washington, D.C. (WAS) to Porto
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High demand for flights, 17% potential price rise
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Best time to find cheap flights, 2% potential price drop
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Average for round-trip flights in December 2024
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Find flight deals from Washington, D.C. to Porto

Cheapest flights from Washington, D.C. to Porto
Explore the most affordable flight options available from Washington, D.C. to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 19, 2024.

This TAP AIR PORTUGAL deal was found by Cheapflights users on 12/18. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/315:30 pmIAD - OPO
1 stop11h 40mTAP AIR PORTUGAL
Tue 1/216:55 amOPO - IAD
1 stop12h 35mTAP AIR PORTUGAL
Deal found 12/18$724
This Kiwi.com deal was found by Cheapflights users on 12/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/307:15 pmIAD - OPO
1 stop10h 50mMultiple Airlines
Sun 1/266:00 amOPO - IAD
2 stops20h 00mMultiple Airlines
Deal found 12/17$934
This Turkish Airlines deal was found by Cheapflights users on 12/18. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/302:00 pmIAD - OPO
1 stop39h 00mTurkish Airlines
Sun 1/264:30 pmOPO - IAD
1 stop24h 45mTurkish Airlines
Deal found 12/18$973
This Delta deal was found by Cheapflights users on 12/17. 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.
Tue 12/316:30 pmIAD - OPO
1 stop11h 20mDelta
Fri 1/2411:45 amOPO - IAD
2 stops28h 38mDelta
Deal found 12/17$1,048
This Delta deal was found by Cheapflights users on 12/17. 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.
Tue 12/319:00 amDCA - OPO
2 stops20h 50mDelta
Wed 1/2211:45 amOPO - DCA
2 stops27h 35mDelta
Deal found 12/17$1,053
This Iberia deal was found by Cheapflights users on 12/17. 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.
Tue 12/3112:13 pmDCA - OPO
2 stops18h 32mIberia
Thu 1/2312:25 pmOPO - DCA
2 stops15h 16mIberia
Deal found 12/17$1,132
This Mytrip deal was found by Cheapflights users on 12/17. 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.
Tue 12/316:55 amBWI - OPO
3 stops28h 55mMultiple Airlines
Tue 1/79:55 pmOPO - BWI
2 stops30h 46mMultiple Airlines
Deal found 12/17$1,133
This Air Canada deal was found by Cheapflights users on 12/17. 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.
Tue 12/314:00 pmDCA - OPO
2 stops16h 15mMultiple Airlines
Mon 1/278:00 pmOPO - DCA
2 stops30h 00mMultiple Airlines
Deal found 12/17$1,244
This Air Canada deal was found by Cheapflights users on 12/17. 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.
Tue 12/314:00 pmDCA - OPO
2 stops16h 15mAir Canada
Mon 1/206:00 amOPO - DCA
2 stops31h 57mAir Canada
Deal found 12/17$1,273
This Kiwi.com deal was found by Cheapflights users on 12/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/318:05 pmDCA - OPO
1 stop11h 10mTAP AIR PORTUGAL
Tue 1/219:00 amOPO - DCA
2 stops16h 59mTAP AIR PORTUGAL
Deal found 12/18$1,331
This KAYAK deal was found by Cheapflights users on 12/18. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2510:20 pmIAD - OPO
1 stop20h 15mLufthansa
Wed 1/812:30 pmOPO - IAD
1 stop32h 20mLufthansa
Deal found 12/18$1,495
This Air Canada deal was found by Cheapflights users on 12/18. 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.
Wed 12/252:35 pmIAD - OPO
2 stops19h 40mAir Canada
Thu 1/96:00 amOPO - IAD
2 stops32h 46mAir Canada
Deal found 12/18$1,497

Find flights from Washington, D.C. to Porto within your budget

Customize your flight search to find flights from Washington, D.C. to Porto 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 December 19, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Fri 2/7

6:10 pm-3:50 pm

2 stops16h 40m

Porto

Wed 2/12

6:45 am-5:00 pm

2 stops15h 15m

$502

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Wed 4/2

10:20 pm-9:10 pm

1 stop17h 50m

Porto

Wed 4/9

10:55 pm-8:20 pm

1 stop26h 25m

$513

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Sun 1/19

10:30 pm-8:00 am

3 stops28h 30m

Porto

Mon 1/27

9:15 am-2:30 pm

2 stops34h 15m

$522

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Mon 3/3

12:27 pm-9:05 am

2 stops15h 38m

Porto

Mon 3/10

11:15 am-4:45 pm

1 stop33h 30m

$648

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Mon 1/20

11:10 am-7:20 pm

3 stops27h 10m

Porto

Mon 1/27

4:05 pm-10:37 pm

3 stops35h 32m

$648

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Mon 3/3

9:55 pm-7:40 am

2 stops28h 45m

Porto

Mon 3/10

8:40 pm-8:45 pm

2 stops28h 05m

$649

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Tue 3/18

1:48 pm-10:50 am

2 stops17h 02m

Porto

Wed 3/26

6:00 am-7:19 pm

2 stops17h 19m

$652

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Tue 3/18

3:15 pm-10:50 am

2 stops15h 35m

Porto

Wed 3/26

6:00 am-10:59 pm

2 stops20h 59m

$652

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Tue 3/18

2:30 pm-10:50 am

2 stops16h 20m

Porto

Wed 3/26

6:00 am-7:14 pm

2 stops17h 14m

$652

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Thu 4/24

12:30 pm-5:05 pm

2 stops23h 35m

Porto

Wed 5/14

12:05 pm-7:59 pm

1 stop12h 54m

$674

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/18

Showing 1-10 of 50 results
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Compare providers for flights from Washington, D.C. to Porto

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Washington, D.C. to Porto in December.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*2 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C.-Porto flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C.-Porto flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C.-Porto flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C.-Porto flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C.-Porto flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Washington, D.C. to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from Washington, D.C. 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.

Travel insights for flights from Washington, D.C. to Porto

Get recent, data-driven insights about flights from Washington, D.C. to Porto including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Washington, D.C. to Porto?

Use this chart to determine the optimal time to book a round-trip flight from Washington, D.C. to Porto. Price data was last updated on December 13, 2024.

The best time to book flights from Washington, D.C. to Porto is 74 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Washington, D.C. to Porto?

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. to Porto (average of $523). Flying from Washington, D.C. to Porto in June is currently the most expensive (average of $1,000). 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 WAS to OPO?

Find hourly flight availability from Washington, D.C. to Porto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 19, 2024.

Unlike at noon, when flights are generally more expensive, you can save up to 17% on flights from Washington, D.C. to Porto by exploring options for tickets in the afternoon.

What is the cheapest day to fly from Washington, D.C. to Porto?

Use this chart to determine the cheapest time to fly round-trip from Washington, D.C. to Porto. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Washington, D.C. to Porto flight should consider departing on Tuesday at noon when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Porto by month

Plan your trip to Porto by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Porto ranges from 0.7 - 7.7 inches per month. December is typically the wettest month, when rainfall can reach 7.7 in. July is typically the driest time to visit Porto when rainfall is around 0.7 in.

Temperature in Porto by month

Plan your trip to Porto by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Porto, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

Reviews of airlines servicing Porto

Get insights into the airlines that provide service to Porto. 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 Porto. Reviews last updated December 19, 2024.
Read through reviews of airlines operating flights from Washington, D.C. to Porto, such as American Airlines, TAP AIR PORTUGAL and KLM. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,600 reviews

Boarding

8.2

Overall

8.0

Food

7.3

Entertainment

7.9

Comfort

8.0

Crew

8.6

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,600 reviews
Delta
8.0
Very good
8,600 reviews

Boarding

8.2

Overall

8.0

Food

7.3

Entertainment

7.9

Comfort

8.0

Crew

8.6

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,349 reviews
Delta
8.0
Very good
8,600 reviews

Boarding

8.2

Overall

8.0

Food

7.3

Entertainment

7.9

Comfort

8.0

Crew

8.6

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

SWISS
7.6
Good
1,605 reviews
Delta
8.0
Very good
8,600 reviews

Boarding

8.2

Overall

8.0

Food

7.3

Entertainment

7.9

Comfort

8.0

Crew

8.6

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Austrian Airlines
7.6
Good
788 reviews
Delta
8.0
Very good
8,600 reviews

Boarding

8.2

Overall

8.0

Food

7.3

Entertainment

7.9

Comfort

8.0

Crew

8.6

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air France
7.4
Good
1,505 reviews
Delta
8.0
Very good
8,600 reviews

Boarding

8.2

Overall

8.0

Food

7.3

Entertainment

7.9

Comfort

8.0

Crew

8.6

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to Porto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Porto from Washington, D.C.?

    Most people fly into Porto (OPO) if they book a flight to Porto from Washington, D.C.. On average, Porto has 0 inbound flights from Washington, D.C. per day from 9 airlines. Porto is conveniently located just 6.8 mi from Porto’s city center.

  • What are the cheapest airlines flying from Washington, D.C. to Porto round-trip?

    Cheapflights users have booked flights from Washington, D.C. to Porto round-trip from $513. Other airlines that can offer you cheap pricing are KLM, from $648, and Delta, from $649. TAP AIR PORTUGAL is priced at 18% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Washington, D.C. to Porto one-way?

    To fly one-way, consider booking your trip with Lufthansa, which is currently one of the cheapest options available, starting at $874. British Airways flights start at $902 while deals on Air Canada start at $917 one-way.

  • What are the most popular routes from Washington, D.C. to Porto?

    The most popular flight routes from Washington, D.C. to Porto are Washington, D.C. Dulles Intl - Porto, Washington, D.C. Reagan-National - Porto and Baltimore/Washington - Porto.

  • Where are the most common layover locations when flying from Washington, D.C. to Porto?

    Washington, D.C. to Porto flights have a layover in Lisbon most often. Madrid sees the next most layovers on Washington, D.C. to Porto flights. Madrid is followed by Paris in terms of the most popular layover location for Washington, D.C. to Porto flights.

  • What are some popular things to do or see while on a layover in Lisbon?

    Chiado, Centro Cultural de Belém, and Praça do Príncipe Real are the most popular attractions in Lisbon if you're in need of something to do during your layover. Chiado, Centro Cultural de Belém, and Praça do Príncipe Real can be accessed by traveling approximately 4.5 mi, 6.9 mi, and 4.2 mi, respectively from Lisbon Humberto Delgado. Those on a layover in Lisbon in need of a rental car can book one at Lisbon Humberto Delgado for about $17.

  • What are some popular points of interest to see during a layover in Madrid?

    Most Madrid visitors opt to spend their time at Puerta del Sol, Plaza Mayor, and Spain Building. Those on a layover in Madrid interested in visiting Puerta del Sol, Plaza Mayor, or Spain Building can do so by traveling 8.4 mi, 8.6 mi, and 8.5 mi, respectively from Madrid Barajas. Those landing in Madrid looking to spend some time exploring during their layover can rent a car for about $26 per day.

  • What are points of interest worth seeing during a layover in Paris?

    If you're on a layover in Paris and looking for things to do, consider visiting Eiffel Tower, Champs-Elysées, or Louvre Museum. Eiffel Tower, Champs-Elysées, and Louvre Museum are located about 15.8 mi, 14.7 mi, and 14.3 mi, respectively from Paris Charles de Gaulle. Those looking to explore during their layover in Paris can rent a car from Paris Charles de Gaulle for about $37 per day.

  • Where are the least popular layover locations for Washington, D.C. to Porto flights?

    Washington, D.C. to Porto flights that have layovers will least frequently stop in London. Washington, D.C. to Porto flights stopping in Amsterdam are the next rarest.

  • Can I find deals for flights from Washington, D.C. to Porto that include hotel bookings?

    Yes. In addition to deals on Washington, D.C. to Porto flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington, D.C. to Porto?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Porto.

  • Can I find deals for business class flights from Washington, D.C. to Porto?

    Yes. Cheapflights offers flight deals from Washington, D.C. to Porto 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 Washington, D.C. to Porto?

    Currently, January is the cheapest month in which you can book a flight from Washington, D.C. to Porto (average of $523). Flying from Washington, D.C. to Porto in June is currently the most expensive (average of $1,000). 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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Top 9 airlines flying from Washington, D.C. to Porto

Discover the top 9 airlines that operate flights from Washington, D.C. to Porto. 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 December 19, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$418Average$683FlexibilityNo cancel feeOn-time71%
IberiaCheapest$421Average$558FlexibilityNo cancel feeOn-time77%
Air FranceCheapest$422Average$740FlexibilityNo cancel feeOn-time77%
DeltaCheapest$424Average$777FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$429Average$556FlexibilityNo cancel feeOn-time75%
TAP AIR PORTUGALCheapest$458Average$757FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$533Average$701FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$538Average$1,080FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$538Average$931FlexibilityNo cancel feeOn-time76%
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