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

According to our current data, Iberia ($512), American Airlines ($519), and Lufthansa ($541) offers the cheapest pricing from Porto to Washington, D.C.. You may be able to fly from Porto to Washington, D.C. for 30% less than the average price by searching for these airlines.

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

One-way options have recently been found by users for as low as $358 on Royal Air Maroc. Other airlines that offer cheap prices include PLAY from $461 and Iberia from $491 one-way.

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

Currently, August is the cheapest month in which you can book a flight from Porto to Washington, D.C. (average of $309). Flying from Porto to Washington, D.C. in June is currently the most expensive (average of $389). 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 day to fly from Porto to Washington, D.C.?

Travelers seeking maximum savings on their Porto to Washington, D.C. flight should consider departing on Tuesday 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 are the most popular routes from Porto to Washington, D.C.?

When deciding which route to take from Porto to Washington, D.C. consider Porto - Baltimore/Washington, Porto - Washington, D.C. Reagan-National or Porto - Washington, D.C. Dulles Intl as they are the most popular.

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

Flights from Porto to Washington, D.C. are found to be more expensive on Friday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Washington, D.C..

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

March is one of the best times of the year to fly to Washington, D.C. from Porto. Prices for March average $738 per person but you can even find prices for as low as $468. The most expensive prices can be found in the month of January. Opting for a March flight can save you 28% on your journey compared to booking in January

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

Most trusted provider : When it comes to deals on Porto-Washington, D.C. 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 Porto-Washington, D.C. 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.?

Porto (OPO) is the airport you will fly out of if you book a flight from Porto to Washington, D.C.. You should not have trouble finding flights to Washington, D.C. from Porto; the airport handles an average of 0 outbound flights to Washington, D.C. per day. You should also have plenty of airline options to choose from since 1 airline has flights from the Porto airport to Washington, D.C.. It is only a 6.8 mi journey to Porto (OPO) from Porto’s city center.

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

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

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

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

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

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

$353+ Flights from Porto to Washington, D.C.

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Porto to Washington, D.C. with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$488 (Iberia)
One-way from	$353 (Kiwi.com)
Popular in	January
Cheapest in	March

Provider with most accurate pricing for Porto-Washington, D.C. (WAS) flight deals.

Search Deals

Provider most trusted by Cheapflights users for Porto-Washington, D.C. (WAS) flights.

Search Deals

From Porto to Washington, D.C. (WAS)

Search Deals

One-way flight from Porto to Washington, D.C. (WAS)

Search Deals

Highest demand for flights based on searches. 8% potential increase in price ($70 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($22 potential savings vs. average RT price).

Search Deals

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

Cheapest flights from Porto to Washington, D.C.
Explore the most affordable flight options available from Porto to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

Sun 4/138:15 amOPO - IAD

1 stop11h 45mMultiple Airlines

Sun 4/2710:40 pmIAD - OPO

1 stop16h 45mMultiple Airlines

Deal found 2/20

$488

Sat 4/128:35 pmOPO - IAD

1 stop23h 25mIberia

Sat 4/194:35 pmIAD - OPO

1 stop10h 00mIberia

Deal found 2/20

$512

Mon 5/1212:20 pmOPO - DCA

2 stops15h 16mAmerican Airlines

Mon 5/193:54 pmDCA - OPO

2 stops14h 46mAmerican Airlines

Deal found 2/20

$519

Mon 3/3111:05 amOPO - IAD

1 stop13h 20mLufthansa

Thu 5/1510:20 pmIAD - OPO

1 stop20h 00mLufthansa

Deal found 2/20

$541

Wed 5/286:00 amOPO - IAD

1 stop14h 15mUnited Airlines

Sat 12/133:00 pmIAD - OPO

2 stops19h 15mUnited Airlines

Deal found 2/20

$544

Sun 4/139:20 pmOPO - BWI

1 stop27h 15mBritish Airways

Sun 4/279:20 pmBWI - OPO

1 stop18h 05mBritish Airways

Deal found 2/20

$553

Wed 5/288:40 amOPO - IAD

1 stop12h 35mSWISS

Sat 12/135:25 pmIAD - OPO

1 stop19h 10mSWISS

Deal found 2/20

$562

Wed 5/288:20 pmOPO - DCA

2 stops31h 16mBritish Airways

Wed 12/106:38 amDCA - OPO

2 stops28h 27mBritish Airways

Deal found 2/20

$578

Wed 5/288:15 amOPO - DCA

2 stops15h 49mMultiple Airlines

Sat 12/135:49 pmDCA - OPO

2 stops12h 56mMultiple Airlines

Deal found 2/20

$628

Wed 3/58:20 amOPO - BWI

2 stops16h 04mMultiple Airlines

Sat 3/88:30 pmBWI - OPO

1 stop17h 45mMultiple Airlines

Deal found 2/20

$633

Wed 5/289:00 amOPO - DCA

1 stop10h 52mUnited Airlines

Sat 12/132:00 pmDCA - OPO

2 stops16h 40mUnited Airlines

Deal found 2/20

$636

Mon 5/124:50 pmOPO - IAD

2 stops26h 55mBrussels Airlines

Mon 5/196:00 pmIAD - OPO

2 stops17h 00mBrussels Airlines

Deal found 2/20

$645

Best flights from Porto to Washington, D.C.
Discover carefully curated flight deals from Porto to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 20, 2025.

Sun 4/138:15 amOPO - IAD

1 stop11h 45mMultiple Airlines

Sun 4/2710:40 pmIAD - OPO

1 stop16h 45mMultiple Airlines

Deal found 2/20

$488

Sat 4/128:35 pmOPO - IAD

1 stop23h 25mIberia

Sat 4/194:35 pmIAD - OPO

1 stop10h 00mIberia

Deal found 2/20

$512

Mon 5/1212:20 pmOPO - DCA

2 stops15h 16mAmerican Airlines

Mon 5/193:54 pmDCA - OPO

2 stops14h 46mAmerican Airlines

Deal found 2/20

$519

Mon 3/3111:05 amOPO - IAD

1 stop13h 20mLufthansa

Thu 5/1510:20 pmIAD - OPO

1 stop20h 00mLufthansa

Deal found 2/20

$541

Wed 5/286:00 amOPO - IAD

1 stop14h 15mUnited Airlines

Sat 12/133:00 pmIAD - OPO

2 stops19h 15mUnited Airlines

Deal found 2/20

$544

Sun 4/139:20 pmOPO - BWI

1 stop27h 15mBritish Airways

Sun 4/279:20 pmBWI - OPO

1 stop18h 05mBritish Airways

Deal found 2/20

$553

Wed 5/288:40 amOPO - IAD

1 stop12h 35mSWISS

Sat 12/135:25 pmIAD - OPO

1 stop19h 10mSWISS

Deal found 2/20

$562

Mon 5/124:50 pmOPO - IAD

2 stops26h 55mBrussels Airlines

Mon 5/196:00 pmIAD - OPO

2 stops17h 00mBrussels Airlines

Deal found 2/20

$645

Sun 4/69:20 amOPO - DCA

2 stops19h 24mDelta

Sun 4/135:05 pmDCA - OPO

2 stops17h 30mDelta

Deal found 2/20

$669

Tue 5/279:00 amOPO - IAD

1 stop11h 20mTAP AIR PORTUGAL

Fri 12/1210:30 pmIAD - OPO

1 stop13h 30mTAP AIR PORTUGAL

Deal found 2/20

$675

Wed 3/510:50 amOPO - IAD

1 stop30h 25mTurkish Airlines

Sat 3/82:00 pmIAD - OPO

1 stop20h 30mTurkish Airlines

Deal found 2/20

$735

Wed 8/136:15 amOPO - IAD

2 stops33h 59mAir Canada

Wed 8/2710:25 amIAD - OPO

2 stops18h 05mAir Canada

Deal found 2/20

$874

Last-minute flights from Porto to Washington, D.C.
Discover last-minute flight deals from Porto to Washington, D.C.. Data last updated February 20, 2025 and is based on user searches.

Wed 3/58:20 amOPO - BWI

2 stops16h 04mMultiple Airlines

Sat 3/88:30 pmBWI - OPO

1 stop17h 45mMultiple Airlines

Deal found 2/20

$633

Wed 3/56:00 amOPO - IAD

1 stop14h 50mUnited Airlines

Sat 3/810:08 pmIAD - OPO

2 stops36h 02mUnited Airlines

Deal found 2/20

$633

Wed 3/510:50 amOPO - IAD

1 stop30h 25mTurkish Airlines

Sat 3/82:00 pmIAD - OPO

1 stop20h 30mTurkish Airlines

Deal found 2/20

$735

Wed 3/56:00 amOPO - DCA

2 stops16h 54mUnited Airlines

Sat 3/86:50 pmDCA - OPO

2 stops15h 20mUnited Airlines

Deal found 2/20

$838

Wed 3/53:55 pmOPO - IAD

2 stops28h 05mMultiple Airlines

Fri 3/710:30 pmIAD - OPO

1 stop12h 25mMultiple Airlines

Deal found 2/20

$1,056

Wed 3/512:00 pmOPO - DCA

2 stops25h 25mTAP AIR PORTUGAL

Sat 3/85:00 pmDCA - OPO

1 stop15h 15mTAP AIR PORTUGAL

Deal found 2/20

$1,400

Mon 3/3111:05 amOPO - IAD

1 stop13h 20mLufthansa

Thu 5/1510:20 pmIAD - OPO

1 stop20h 00mLufthansa

Deal found 2/20

$541

Mon 3/3112:20 pmOPO - IAD

2 stops36h 50mAmerican Airlines

Thu 5/155:26 pmIAD - OPO

2 stops33h 09mAmerican Airlines

Deal found 2/20

$560

Mon 3/317:20 pmOPO - IAD

2 stops23h 55mSWISS

Thu 5/158:45 pmIAD - OPO

1 stop16h 45mSWISS

Deal found 2/20

$588

One-way flights from Porto to Washington, D.C.
Search for one-way flight options from Porto to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated February 20, 2025.

Wed 5/287:15 amOPO - IAD

2 stops16h 50mMultiple Airlines

Deal found 2/20

$353

Thu 5/2912:15 pmOPO - IAD

1 stop11h 50mRoyal Air Maroc

Deal found 2/20

$358

Thu 2/277:35 amOPO - BWI

2 stops21h 21mMultiple Airlines

Deal found 2/19

$402

Thu 5/299:10 pmOPO - BWI

1 stop25h 30mPLAY

Deal found 2/20

$461

Wed 5/288:15 amOPO - IAD

1 stop11h 45mIberia

Deal found 2/20

$491

Thu 5/299:40 amOPO - DCA

2 stops17h 56mBritish Airways

Deal found 2/20

$496

Fri 5/308:15 amOPO - IAD

1 stop11h 45mAmerican Airlines

Deal found 2/20

$496

Wed 5/2812:20 pmOPO - DCA

2 stops15h 16mIberia

Deal found 2/20

$500

Thu 5/298:15 amOPO - BWI

2 stops19h 01mAmerican Airlines

Deal found 2/20

$506

Tue 4/228:35 pmOPO - DCA

2 stops30h 54mMultiple Airlines

Deal found 2/19

$506

Tue 5/278:40 pmOPO - BWI

1 stop27h 55mBritish Airways

Deal found 2/20

$546

Sat 5/3110:40 amOPO - IAD

1 stop14h 30mBritish Airways

Deal found 2/20

$546

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

Fly from

Fly to

Route

Depart

Return

Price

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Sun 4/13

8:15 am-3:00 pm

1 stop11h 45m

Washington, D.C. Dulles Intl

Sun 4/27

10:40 pm-8:25 pm

1 stop16h 45m

$488

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Sat 4/12

8:35 pm-3:00 pm

1 stop23h 25m

Washington, D.C. Dulles Intl

Sat 4/19

4:35 pm-7:35 am

1 stop10h 00m

$512

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Mon 5/12

12:20 pm-10:36 pm

2 stops15h 16m

Washington, D.C. Reagan-National

Mon 5/19

3:54 pm-11:40 am

2 stops14h 46m

$519

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Mon 3/31

11:05 am-7:25 pm

1 stop13h 20m

Washington, D.C. Dulles Intl

Thu 5/15

10:20 pm-11:20 pm

1 stop20h 00m

$541

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Wed 5/28

6:00 am-3:15 pm

1 stop14h 15m

Washington, D.C. Dulles Intl

Sat 12/13

3:00 pm-3:15 pm

2 stops19h 15m

$544

PortoBaltimore

OPO - BWI

OPOBWI

Porto

Sun 4/13

9:20 pm-7:35 pm

1 stop27h 15m

Baltimore/Washington

Sun 4/27

9:20 pm-8:25 pm

1 stop18h 05m

$553

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Wed 5/28

8:40 am-4:15 pm

1 stop12h 35m

Washington, D.C. Dulles Intl

Sat 12/13

5:25 pm-5:35 pm

1 stop19h 10m

$562

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Wed 5/28

8:20 pm-10:36 pm

2 stops31h 16m

Washington, D.C. Reagan-National

Thu 12/11

6:38 am-5:15 pm

2 stops29h 37m

$578

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Wed 5/28

8:15 am-7:04 pm

2 stops15h 49m

Washington, D.C. Reagan-National

Sat 12/13

5:49 pm-11:45 am

2 stops12h 56m

$628

PortoBaltimore

OPO - BWI

OPOBWI

Porto

Wed 3/5

8:20 am-7:24 pm

2 stops16h 04m

Baltimore/Washington

Sat 3/8

8:30 pm-7:15 pm

1 stop17h 45m

$633

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 47 results

...

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

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

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

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

A simple way to save on the total cost of your ticket is to fly from Porto to Washington, D.C. in the morning. If you’re flexible enough to do this you can expect to save up to 32% on your trip compared to booking a flight at noon.

Rainfall in Washington, D.C. by month

In terms of precipitation, rainfall in Washington, D.C. 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. when rainfall is around 2.6 in.

Temperature in Washington, D.C. by month

If weather is an important factor for your trip to Washington, D.C., 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 Washington, D.C.

Read reviews from past customers who have flown Delta, KLM and SWISS from Porto to Washington, D.C.. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

8,220 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta

8.0

Very good

8,220 reviews

Delta

8.0

Very good

8,220 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM

7.8

Good

1,333 reviews

Delta

8.0

Very good

8,220 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

SWISS

7.5

Good

1,568 reviews

Delta

8.0

Very good

8,220 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines

7.4

Good

8,766 reviews

Delta

8.0

Very good

8,220 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Turkish Airlines

7.3

Good

3,832 reviews

Delta

8.0

Very good

8,220 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

What airport do you fly from for flights from Porto to Washington, D.C.?
Porto (OPO) is the airport you will fly out of if you book a flight from Porto to Washington, D.C.. You should not have trouble finding flights to Washington, D.C. from Porto; the airport handles an average of 0 outbound flights to Washington, D.C. per day. You should also have plenty of airline options to choose from since 1 airline has flights from the Porto airport to Washington, D.C.. It is only a 6.8 mi journey to Porto (OPO) from Porto’s city center.
What are the cheapest airlines flying from Porto to Washington, D.C. round-trip?
According to our current data, Iberia ($512), American Airlines ($519), and Lufthansa ($541) offers the cheapest pricing from Porto to Washington, D.C.. You may be able to fly from Porto to Washington, D.C. for 30% less than the average price by searching for these airlines.
What are the cheapest airlines to fly from Porto to Washington, D.C. one-way?
One-way options have recently been found by users for as low as $358 on Royal Air Maroc. Other airlines that offer cheap prices include PLAY from $461 and Iberia from $491 one-way.
What are the most popular routes from Porto to Washington, D.C.?
When deciding which route to take from Porto to Washington, D.C. consider Porto - Baltimore/Washington, Porto - Washington, D.C. Reagan-National or Porto - Washington, D.C. Dulles Intl as they are the most popular.
Can I find deals for flights from Porto to Washington, D.C. that include hotel bookings?
Yes. In addition to deals on Porto to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Porto to Washington, D.C.?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Porto to Washington, D.C..
Can I find deals for business class flights from Porto to Washington, D.C.?
Yes. Cheapflights offers flight deals from Porto to Washington, D.C. 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.?
Currently, August is the cheapest month in which you can book a flight from Porto to Washington, D.C. (average of $309). Flying from Porto to Washington, D.C. in June is currently the most expensive (average of $389). 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

Arlington

Alexandria

Fairfax

Springfield

Rockville

Tysons

Gaithersburg

Silver Spring

Fredericksburg

Linthicum Heights

Laurel

Falls Church

Woodbridge

Easton

Herndon

Bowie

Reston

National Harbor

Oxon Hill

Gettysburg

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Porto to Washington, D.C.

Airline	Cheapest	Average	Flexibility	On-time
TAP AIR PORTUGAL	Cheapest$480	Average$812	FlexibilityNo cancel fee	On-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$353+ Cheap flights from Porto (OPO) to Washington, D.C. (WAS)

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 5/28. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Porto to Washington, D.C. 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 Washington, D.C.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

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

Cheapest flights from Porto to Washington, D.C.Explore the most affordable flight options available from Porto to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

Explore the most affordable flight options available from Porto to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

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

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

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Porto with our price prediction graph.

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

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

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

Find hourly flight availability from Porto to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 20, 2025.

Rainfall in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average rainfall totals by month.

Temperature in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature totals by month.

Reviews of airlines servicing Washington, D.C.

Read reviews from past customers who have flown Delta, KLM and SWISS from Porto to Washington, D.C.. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

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

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

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

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

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

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

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

Traveling to a place near Porto?

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 Washington, D.C.

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

Top airline flying from Porto to Washington, D.C.

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Porto to Washington, D.C.
Explore the most affordable flight options available from Porto to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.