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

Lufthansa, at $578, was found to be the cheapest airline from Porto to Washington, D.C. Dulles Intl Airport.Alternate airlines to your destination round-trip include SWISS and KLM. Lufthansa is priced at 19% lower than the current average price of a flight leaving 3 months from now.

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

To fly one-way, consider booking your trip with British Airways, which is currently one of the cheapest options available, starting at $482. Turkish Airlines flights start at $534 while deals on Iberia start at $978 one-way.

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

Travelers seeking maximum savings on their Porto to Washington, D.C. Dulles Intl Airport flight should consider departing on Monday mornings when fares are most often at their lowest. Wednesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

What is the cheapest day to fly round-trip from Porto to Washington, D.C. Dulles Intl Airport?

Flying to your destination on a Tuesday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to Washington, D.C. Dulles Intl Airport. Check prices with Cheapflights to find a great deal for your trip.

What is the cheapest month to fly from Porto to Washington, D.C. Dulles Intl Airport?

The best pricing can be found in the month of April. Prices to Washington, D.C. Dulles Intl Airport from Porto average $698. You can even find prices in April for less than $698, as users have found deals to Washington, D.C. Dulles Intl Airport from as low as $470. The month of January appears to be one of the more expensive times to travel to Washington, D.C. Dulles Intl Airport from Porto. Flying in the targeted month can save you up to 27%.

Most accurate provider : When it comes to deals on Porto-Washington, D.C. Dulles Intl Airport flights, users find the pricing of Gurufare to be most consistent on Cheapflights vs. Gurufare Users can find the same prices on Porto-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. Gurufare >95% of the time. Price accuracy is based on data collected from Porto-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Porto-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust Gurufare the most. Gurufare 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 Porto-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

Porto (OPO), located 6.8 mi from the city center, is the airport you fly out of when you book flights from Porto to Washington, D.C. Dulles Intl. 1 airline have flights from Porto to Washington, D.C. Dulles Intl on a regular basis. Booking flights from Porto to Washington, D.C. Dulles Intl should not be difficult; the airport handles an average of 0 outbound flights to Washington, D.C. Dulles Intl per day.

Can I find deals for flights from Porto to Dulles Intl that include hotel bookings?

Yes. In addition to deals on Porto to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Porto to Dulles Intl?

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

Can I find deals for business class flights from Porto to Dulles Intl?

Yes. Cheapflights offers flight deals from Porto to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$482+ Flights from Porto to Washington, D.C. Dulles Intl Airport

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1. Tell us where you want to go

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Cheap flight deals from Porto to Dulles Intl

Most accurate provider	Gurufare 3 stars
Most trusted provider	Gurufare 3 stars
Round-trip from	$536 (Gotogate)
One-way from	$482 (Cheapflightsfares)
Popular in	June
Cheapest in	February
Average price	$712

Provider with most accurate pricing for Porto-Washington, D.C. Dulles Intl flight deals.

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Provider most trusted by Cheapflights users for Porto-Washington, D.C. Dulles Intl flights.

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From Porto to Washington, D.C. Dulles Intl

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One-way flight from Porto to Washington, D.C. Dulles Intl

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High demand for flights, 27% potential price rise

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Best time to find cheap flights, 4% potential price drop

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Average for round-trip flights in December 2024

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Find flight deals from Porto to Dulles Intl

Best flights from Porto to Dulles Intl
Discover carefully curated flight deals from Porto to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2024.

Mon 3/1712:05 pmOPO - IAD

1 stop31h 25mMultiple Airlines

Mon 3/3110:20 pmIAD - OPO

1 stop20h 00mMultiple Airlines

Deal found 12/18

$536

Sun 3/166:05 amOPO - IAD

2 stops19h 15mLufthansa

Sun 3/3010:20 pmIAD - OPO

1 stop20h 00mLufthansa

Deal found 12/18

$578

Mon 3/177:30 pmOPO - IAD

2 stops24h 05mSWISS

Mon 3/315:35 pmIAD - OPO

2 stops15h 10mSWISS

Deal found 12/18

$604

Tue 1/77:30 pmOPO - IAD

1 stop25h 15mKLM

Sun 3/167:30 pmIAD - OPO

1 stop11h 25mKLM

Deal found 12/16

$934

Tue 1/76:55 amOPO - IAD

2 stops14h 35mUnited Airlines

Sun 3/166:50 pmIAD - OPO

1 stop12h 45mUnited Airlines

Deal found 12/16

$1,460

Last-minute flights from Porto to Dulles Intl
Discover last-minute flight deals from Porto to Dulles Intl. Data last updated December 18, 2024 and is based on user searches.

Tue 1/77:30 pmOPO - IAD

1 stop25h 15mKLM

Sun 3/167:30 pmIAD - OPO

1 stop11h 25mKLM

Deal found 12/16

$934

Tue 1/711:25 amOPO - IAD

2 stops31h 35mSWISS

Sat 3/159:45 pmIAD - OPO

1 stop16h 50mSWISS

Deal found 12/16

$1,061

Tue 1/76:55 amOPO - IAD

2 stops14h 35mUnited Airlines

Sun 3/166:50 pmIAD - OPO

1 stop12h 45mUnited Airlines

Deal found 12/16

$1,460

One-way flights from Porto to Dulles Intl
Search for one-way flight options from Porto to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated December 18, 2024.

Sat 3/18:40 pmOPO - IAD

2 stops23h 55mBritish Airways

Deal found 12/18

$482

Sat 3/14:25 pmOPO - IAD

1 stop24h 10mTurkish Airlines

Deal found 12/17

$534

Mon 1/64:40 pmOPO - IAD

2 stops32h 05mIberia

Deal found 12/16

$978

Mon 1/611:45 amOPO - IAD

2 stops57h 20mAir France

Deal found 12/17

$1,173

Sun 1/55:55 pmOPO - IAD

1 stop29h 45mRoyal Air Maroc

Deal found 12/17

$1,359

Find flights from Porto to Dulles Intl within your budget

Fly from

Fly to

Route

Depart

Return

Price

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Mon 3/17

12:05 pm-3:30 pm

1 stop31h 25m

Washington, D.C. Dulles Intl

Mon 3/31

10:20 pm-11:20 pm

1 stop20h 00m

$536

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Sun 3/16

6:05 am-9:20 pm

2 stops19h 15m

Washington, D.C. Dulles Intl

Sun 3/30

10:20 pm-11:20 pm

1 stop20h 00m

$578

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Mon 3/17

7:30 pm-3:35 pm

2 stops24h 05m

Washington, D.C. Dulles Intl

Mon 3/31

5:35 pm-1:45 pm

2 stops15h 10m

$604

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Tue 1/7

7:30 pm-3:45 pm

1 stop25h 15m

Washington, D.C. Dulles Intl

Sun 3/16

7:30 pm-10:55 am

1 stop11h 25m

$934

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Tue 1/7

6:55 am-4:30 pm

2 stops14h 35m

Washington, D.C. Dulles Intl

Sun 3/16

6:50 pm-11:35 am

1 stop12h 45m

$1,460

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Sat 3/1

8:40 pm-3:35 pm

2 stops23h 55m

$482

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Sat 3/1

4:25 pm-11:35 am

1 stop24h 10m

$534

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Mon 1/6

4:40 pm-7:45 pm

2 stops32h 05m

$978

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Mon 1/6

11:45 am-4:05 pm

2 stops57h 20m

$1,173

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Sun 1/5

5:55 pm-6:40 pm

1 stop29h 45m

$1,359

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/18

Compare providers for flights from Porto to Dulles Intl

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Porto to Dulles Intl in December.

Provider	Price Accuracy	Trust Score*
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Gurufare	Price Accuracy3 stars	Trust Score*3 stars
Gotogate	Price Accuracy2 stars	Trust Score*2 stars
KAYAK	Price Accuracy1 star	Trust Score*3 stars
Mytrip	Price Accuracy3 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
Trip.com	Price Accuracy2 stars	Trust Score*3 stars
Kiwi.com	Price Accuracy3 stars	Trust 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 Porto-Washington, D.C. Dulles Intl Airport flights, users find the pricing of Gurufare to be most consistent on Cheapflights vs. Gurufare Users can find the same prices on Porto-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. Gurufare >95% of the time. Price accuracy is based on data collected from Porto-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Porto-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust Gurufare the most. Gurufare 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 Porto-Washington, D.C. Dulles Intl Airport 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 Porto to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Porto 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 Porto to Dulles Intl

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

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

Currently, November is the cheapest month in which you can book a flight from Porto to Washington, D.C. Dulles Intl Airport (average of $299). Flying from Porto to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $377). 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 OPO to IAD?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Porto to Washington, D.C. Dulles Intl Airport as you normally would.

Rainfall in Dulles Intl by month

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

Temperature in Dulles Intl by month

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Dulles Intl

KLM

7.8

Good

1,349 reviews

Reviews

1 / 10

Flight was late do to issues with loading stuff. One of the two bathrooms in business class was not working. WiFi did not work 80% of the time. My bag came out last even though it had a priority tag

KLM

7.8

Good

1,349 reviews

KLM

7.8

Good

1,349 reviews

Reviews

1 / 10

Flight was late do to issues with loading stuff. One of the two bathrooms in business class was not working. WiFi did not work 80% of the time. My bag came out last even though it had a priority tag

SWISS

7.6

Good

1,606 reviews

KLM

7.8

Good

1,349 reviews

Reviews

1 / 10

Flight was late do to issues with loading stuff. One of the two bathrooms in business class was not working. WiFi did not work 80% of the time. My bag came out last even though it had a priority tag

Air France

7.4

Good

1,504 reviews

KLM

7.8

Good

1,349 reviews

Reviews

1 / 10

Flight was late do to issues with loading stuff. One of the two bathrooms in business class was not working. WiFi did not work 80% of the time. My bag came out last even though it had a priority tag

United Airlines

7.4

Good

9,055 reviews

KLM

7.8

Good

1,349 reviews

Reviews

1 / 10

Flight was late do to issues with loading stuff. One of the two bathrooms in business class was not working. WiFi did not work 80% of the time. My bag came out last even though it had a priority tag

Turkish Airlines

7.3

Good

3,907 reviews

KLM

7.8

Good

1,349 reviews

Reviews

1 / 10

Flight was late do to issues with loading stuff. One of the two bathrooms in business class was not working. WiFi did not work 80% of the time. My bag came out last even though it had a priority tag

Related info for your journey

What airport do you fly from for flights from Porto to Washington, D.C. Dulles Intl?
Porto (OPO), located 6.8 mi from the city center, is the airport you fly out of when you book flights from Porto to Washington, D.C. Dulles Intl. 1 airline have flights from Porto to Washington, D.C. Dulles Intl on a regular basis. Booking flights from Porto to Washington, D.C. Dulles Intl should not be difficult; the airport handles an average of 0 outbound flights to Washington, D.C. Dulles Intl per day.
What are the cheapest airlines flying from Porto to Washington, D.C. Dulles Intl Airport round-trip?
Lufthansa, at $578, was found to be the cheapest airline from Porto to Washington, D.C. Dulles Intl Airport.Alternate airlines to your destination round-trip include SWISS and KLM. Lufthansa is priced at 19% lower than the current average price of a flight leaving 3 months from now.
What are the cheapest airlines to fly from Porto to Washington, D.C. Dulles Intl Airport one-way?
To fly one-way, consider booking your trip with British Airways, which is currently one of the cheapest options available, starting at $482. Turkish Airlines flights start at $534 while deals on Iberia start at $978 one-way.
Can I find deals for flights from Porto to Dulles Intl that include hotel bookings?
Yes. In addition to deals on Porto to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Porto to Dulles Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Porto to Dulles Intl.
Can I find deals for business class flights from Porto to Dulles Intl?
Yes. Cheapflights offers flight deals from Porto to Dulles Intl 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 Porto to Washington, D.C. Dulles Intl Airport?
Currently, November is the cheapest month in which you can book a flight from Porto to Washington, D.C. Dulles Intl Airport (average of $299). Flying from Porto to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $377). 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

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Porto to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
TAP AIR PORTUGAL	Cheapest$501	Average$812	FlexibilityNo cancel fee	On-timeN/A

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$482+ Cheap flights from Porto (OPO) to Dulles Intl (IAD)

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 3/1. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Porto to Dulles Intl with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Porto to Dulles Intl

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Porto to Dulles Intl

Best flights from Porto to Dulles IntlDiscover carefully curated flight deals from Porto to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2024.

Discover carefully curated flight deals from Porto to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2024.

Find flights from Porto to Dulles Intl within your budget

Compare providers for flights from Porto to Dulles Intl

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 Porto to Dulles Intl in December.

Best time to book a flight from Porto to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Porto with our price prediction graph.

Travel insights for flights from Porto to Dulles Intl

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

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

What is the cheapest time of day to fly from OPO to IAD?

Find hourly flight availability from Porto to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2024.

Rainfall in Dulles Intl by month

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

Temperature in Dulles Intl by month

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

Reviews of airlines servicing Dulles Intl

Related info for your journey

Find useful and relevant information for your journey from Porto to Dulles Intl. 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 from for flights from Porto to Washington, D.C. Dulles Intl?

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

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

Can I find deals for flights from Porto to Dulles Intl that include hotel bookings?

How can I find direct flights from Porto to Dulles Intl?

Can I find deals for business class flights from Porto to Dulles Intl?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Porto to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Porto to Dulles Intl

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Book with Flexibility

Travel Smart

Best flights from Porto to Dulles Intl
Discover carefully curated flight deals from Porto to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2024.