How long is the flight from Porto to Washington, D.C.?

Departing from Porto to Washington, D.C. will take you 11h 45m. The distance from Porto to Washington, D.C. is about 3537 mi. This flight may include one or multiple stops.

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

According to our current data, TAP AIR PORTUGAL ($480), 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 this airline.

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 $292). Flying from Porto to Washington, D.C. in April is currently the most expensive (average of $337). 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.

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.

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).

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 - Washington, D.C. Reagan-National, Porto - Washington, D.C. Dulles Intl or Porto - Baltimore/Washington as they are the most popular.

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.

$343+ Cheap Flights from Porto to Washington, D.C.

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

Round-trip from	$459 (Mytrip)
One-way from	$343 (Kiwi.com)
Popular in	January
Cheapest in	May
Average price	$793

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. 15% potential increase in price ($123 potential increase over avg. RT price).

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Cheapest flight prices on average. 5% potential price decrease ($37 potential savings vs. average RT price).

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Average for round-trip flights in September 2025

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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 septiembre 16, 2025.

jue. 10/29:20 pmOPO - BWI

1 stop25h 20mPLAY

mié. 10/156:50 pmBWI - OPO

1 stop20h 30mPLAY

Deal found 9/15

$459

jue. 10/28:15 amOPO - IAD

1 stop11h 45mIberia

mié. 10/154:35 pmIAD - OPO

1 stop18h 20mIberia

Deal found 9/14

$530

jue. 9/259:20 pmOPO - BWI

1 stop25h 20mPLAY

mié. 10/86:50 pmBWI - OPO

1 stop20h 30mPLAY

Deal found 9/15

$535

mar. 9/238:15 amOPO - IAD

1 stop11h 45mAmerican Airlines

sáb. 10/412:48 pmIAD - OPO

2 stops13h 47mAmerican Airlines

Deal found 9/15

$535

vie. 9/269:20 amOPO - IAD

1 stop12h 00mKLM

sáb. 10/49:20 pmIAD - OPO

1 stop13h 10mKLM

Deal found 9/14

$538

jue. 10/27:20 pmOPO - IAD

1 stop25h 55mSWISS

mié. 10/158:45 pmIAD - OPO

1 stop16h 45mSWISS

Deal found 9/15

$540

vie. 10/3112:50 pmOPO - IAD

1 stop32h 50mSWISS

mar. 11/115:25 pmIAD - OPO

1 stop12h 50mSWISS

Deal found 9/14

$541

sáb. 11/14:10 pmOPO - IAD

1 stop28h 55mMultiple Airlines

lun. 11/106:50 pmIAD - OPO

1 stop10h 40mMultiple Airlines

Deal found 9/14

$542

vie. 9/266:40 amOPO - IAD

1 stop13h 55mDelta

sáb. 10/48:17 pmIAD - OPO

2 stops14h 13mDelta

Deal found 9/15

$544

jue. 10/28:15 amOPO - DCA

2 stops19h 04mAmerican Airlines

mié. 10/155:30 pmDCA - OPO

2 stops13h 10mAmerican Airlines

Deal found 9/14

$545

sáb. 11/16:00 amOPO - IAD

1 stop15h 05mDelta

mar. 11/1111:05 amIAD - OPO

2 stops18h 25mDelta

Deal found 9/14

$549

mié. 10/86:15 amOPO - DCA

2 stops16h 45mDelta

mar. 10/215:00 pmDCA - OPO

2 stops17h 30mDelta

Deal found 9/15

$550

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 septiembre 16, 2025.

jue. 10/29:20 pmOPO - BWI

1 stop25h 20mPLAY

mié. 10/156:50 pmBWI - OPO

1 stop20h 30mPLAY

Deal found 9/15

$459

jue. 10/28:15 amOPO - IAD

1 stop11h 45mAmerican Airlines

mié. 10/154:35 pmIAD - OPO

1 stop10h 00mAmerican Airlines

Deal found 9/15

$530

jue. 10/28:15 amOPO - IAD

1 stop11h 45mIberia

mié. 10/154:35 pmIAD - OPO

1 stop18h 20mIberia

Deal found 9/14

$530

vie. 9/269:20 amOPO - IAD

1 stop12h 00mAir France

sáb. 10/49:20 pmIAD - OPO

1 stop13h 10mAir France

Deal found 9/15

$538

vie. 10/3112:50 pmOPO - IAD

1 stop32h 50mSWISS

mar. 11/115:25 pmIAD - OPO

1 stop12h 50mSWISS

Deal found 9/14

$541

mié. 10/86:15 amOPO - IAD

1 stop14h 20mDelta

mar. 10/217:59 pmIAD - OPO

2 stops14h 31mDelta

Deal found 9/14

$544

vie. 10/316:30 amOPO - DCA

2 stops17h 10mMultiple Airlines

mar. 11/112:59 pmDCA - OPO

2 stops14h 31mMultiple Airlines

Deal found 9/14

$557

vie. 10/3112:35 pmOPO - BWI

2 stops25h 24mUnited Airlines

lun. 11/1010:56 amBWI - OPO

2 stops19h 44mUnited Airlines

Deal found 9/14

$579

jue. 10/29:55 amOPO - BWI

1 stop14h 50mBritish Airways

mié. 10/159:35 pmBWI - OPO

1 stop31h 50mBritish Airways

Deal found 9/15

$769

sáb. 11/19:40 amOPO - IAD

1 stop36h 00mSWISS

lun. 11/105:25 pmIAD - OPO

1 stop12h 50mSWISS

Deal found 9/14

$544

mié. 10/156:15 amOPO - IAD

1 stop14h 20mDelta

lun. 10/207:59 pmIAD - OPO

2 stops14h 31mDelta

Deal found 9/16

$544

jue. 10/28:15 amOPO - DCA

2 stops15h 44mAmerican Airlines

mié. 10/155:30 pmDCA - OPO

2 stops13h 10mAmerican Airlines

Deal found 9/15

$545

sáb. 11/16:00 amOPO - DCA

2 stops20h 59mMultiple Airlines

lun. 11/102:59 pmDCA - OPO

2 stops14h 31mMultiple Airlines

Deal found 9/14

$557

jue. 10/307:25 pmOPO - IAD

1 stop24h 10mSWISS

dom. 11/95:25 pmIAD - OPO

1 stop12h 45mSWISS

Deal found 9/14

$544

sáb. 11/16:00 amOPO - DCA

2 stops20h 59mDelta

mar. 11/112:59 pmDCA - OPO

2 stops14h 31mDelta

Deal found 9/14

$550

jue. 10/308:40 pmOPO - BWI

2 stops27h 05mIberia

vie. 11/78:35 pmBWI - OPO

2 stops18h 25mIberia

Deal found 9/14

$605

sáb. 11/19:40 amOPO - IAD

1 stop36h 00mSWISS

mar. 11/115:25 pmIAD - OPO

1 stop12h 50mSWISS

Deal found 9/14

$544

vie. 10/316:30 amOPO - DCA

2 stops19h 37mDelta

lun. 11/1010:30 amDCA - OPO

2 stops18h 45mDelta

Deal found 9/14

$550

jue. 10/212:35 pmOPO - BWI

2 stops26h 20mUnited Airlines

mié. 10/1510:51 amBWI - OPO

2 stops41h 54mUnited Airlines

Deal found 9/15

$666

jue. 10/308:40 pmOPO - BWI

2 stops27h 05mIberia

mar. 11/118:35 pmBWI - OPO

2 stops30h 05mIberia

Deal found 9/14

$651

mié. 10/86:15 amOPO - DCA

2 stops15h 55mDelta

mar. 10/215:00 pmDCA - OPO

2 stops17h 30mDelta

Deal found 9/14

$550

vie. 9/269:20 amOPO - DCA

2 stops19h 21mDelta

sáb. 10/45:00 pmDCA - OPO

2 stops17h 30mDelta

Deal found 9/15

$552

jue. 10/3011:20 amOPO - DCA

2 stops15h 39mDelta

dom. 11/98:30 amDCA - OPO

2 stops21h 00mDelta

Deal found 9/14

$558

jue. 10/26:30 amOPO - BWI

2 stops22h 07mDelta

mié. 10/151:00 pmBWI - OPO

2 stops21h 30mDelta

Deal found 9/15

$582

vie. 10/3111:15 amOPO - BWI

2 stops34h 11mDelta

jue. 11/139:05 amBWI - OPO

2 stops20h 20mDelta

Deal found 9/14

$629

jue. 10/3011:20 amOPO - BWI

2 stops15h 42mDelta

dom. 11/912:16 pmBWI - OPO

2 stops17h 14mDelta

Deal found 9/14

$655

Last-minute flights from Porto to Washington, D.C.
Discover last-minute flight deals from Porto to Washington, D.C.. Data last updated septiembre 16, 2025 and is based on user searches.

mar. 9/238:15 amOPO - IAD

1 stop11h 45mAmerican Airlines

sáb. 10/412:48 pmIAD - OPO

2 stops13h 47mAmerican Airlines

Deal found 9/15

$535

jue. 9/259:20 pmOPO - BWI

1 stop25h 20mPLAY

mié. 10/86:50 pmBWI - OPO

1 stop20h 30mPLAY

Deal found 9/15

$535

vie. 9/269:20 amOPO - IAD

1 stop12h 00mKLM

sáb. 10/49:20 pmIAD - OPO

1 stop13h 10mKLM

Deal found 9/14

$538

vie. 9/266:40 amOPO - IAD

1 stop13h 55mDelta

sáb. 10/48:17 pmIAD - OPO

2 stops14h 13mDelta

Deal found 9/15

$544

jue. 10/29:20 pmOPO - BWI

1 stop25h 20mPLAY

mié. 10/156:50 pmBWI - OPO

1 stop20h 30mPLAY

Deal found 9/15

$459

jue. 10/28:15 amOPO - IAD

1 stop11h 45mIberia

mié. 10/154:35 pmIAD - OPO

1 stop18h 20mIberia

Deal found 9/14

$530

jue. 10/27:20 pmOPO - IAD

1 stop25h 55mSWISS

mié. 10/158:45 pmIAD - OPO

1 stop16h 45mSWISS

Deal found 9/15

$540

jue. 10/28:15 amOPO - DCA

2 stops15h 44mAmerican Airlines

mié. 10/155:30 pmDCA - OPO

2 stops13h 10mAmerican Airlines

Deal found 9/15

$545

mié. 10/86:15 amOPO - DCA

2 stops16h 45mDelta

mar. 10/215:00 pmDCA - OPO

2 stops17h 30mDelta

Deal found 9/15

$550

mié. 10/86:15 amOPO - IAD

2 stops18h 03mDelta

mar. 10/217:59 pmIAD - OPO

2 stops14h 31mDelta

Deal found 9/15

$550

mié. 10/811:35 amOPO - IAD

1 stop33h 00mKLM

mar. 10/215:25 pmIAD - OPO

1 stop12h 15mKLM

Deal found 9/15

$551

vie. 10/3112:50 pmOPO - IAD

1 stop32h 50mSWISS

dom. 11/95:25 pmIAD - OPO

1 stop12h 45mSWISS

Deal found 9/14

$541

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 septiembre 16, 2025.

mié. 10/158:05 pmOPO - BWI

2 stops50h 35mMultiple Airlines

Deal found 9/16

$343

dom. 1/1112:25 pmOPO - DCA

2 stops15h 14mAmerican Airlines

Deal found 9/14

$354

mié. 11/198:20 amOPO - DCA

2 stops19h 21mBritish Airways

Deal found 9/16

$355

mié. 11/191:55 pmOPO - IAD

2 stops30h 20mMultiple Airlines

Deal found 9/16

$356

jue. 10/169:20 pmOPO - BWI

1 stop25h 20mPLAY

Deal found 9/16

$369

mié. 10/1510:00 pmOPO - IAD

2 stops27h 50mMultiple Airlines

Deal found 9/16

$376

jue. 10/167:15 amOPO - BWI

3 stops55h 06mMultiple Airlines

Deal found 9/16

$379

mar. 10/146:10 amOPO - IAD

2 stops38h 10mMultiple Airlines

Deal found 9/16

$391

dom. 1/114:20 pmOPO - BWI

2 stops45h 30mMultiple Airlines

Deal found 9/14

$401

sáb. 10/189:25 pmOPO - IAD

2 stops46h 55mMultiple Airlines

Deal found 9/16

$401

jue. 10/29:20 pmOPO - BWI

1 stop25h 20mWorldTicket

Deal found 9/14

$404

jue. 10/167:15 amOPO - IAD

2 stops18h 35mMultiple Airlines

Deal found 9/16

$405

Cheapflights Fare Finder

Use the filters below to find and compare flights from Porto to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortoBaltimore

OPO - BWI

OPOBWI

Porto

jue. 10/2

9:20 pm-5:40 pm

1 stop25h 20m

Baltimore/Washington

mié. 10/15

6:50 pm-8:20 pm

1 stop20h 30m

$459

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

jue. 10/2

8:15 am-3:00 pm

1 stop11h 45m

Washington, D.C. Dulles Intl

mié. 10/15

4:35 pm-7:35 am

1 stop10h 00m

$530

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

jue. 10/2

8:15 am-3:00 pm

1 stop11h 45m

Washington, D.C. Dulles Intl

mié. 10/15

4:35 pm-3:55 pm

1 stop18h 20m

$530

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

vie. 9/26

9:20 am-4:20 pm

1 stop12h 00m

Washington, D.C. Dulles Intl

sáb. 10/4

9:20 pm-3:30 pm

1 stop13h 10m

$538

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

vie. 10/31

12:50 pm-5:40 pm

1 stop32h 50m

Washington, D.C. Dulles Intl

mar. 11/11

5:25 pm-11:15 am

1 stop12h 50m

$541

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

mié. 10/8

6:15 am-3:35 pm

1 stop14h 20m

Washington, D.C. Dulles Intl

mar. 10/21

7:59 pm-3:30 pm

2 stops14h 31m

$544

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

sáb. 11/1

9:40 am-5:40 pm

1 stop36h 00m

Washington, D.C. Dulles Intl

lun. 11/10

5:25 pm-11:15 am

1 stop12h 50m

$544

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

mié. 10/15

6:15 am-3:35 pm

1 stop14h 20m

Washington, D.C. Dulles Intl

lun. 10/20

7:59 pm-3:30 pm

2 stops14h 31m

$544

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

jue. 10/30

7:25 pm-3:35 pm

1 stop24h 10m

Washington, D.C. Dulles Intl

dom. 11/9

5:25 pm-11:10 am

1 stop12h 45m

$544

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

sáb. 11/1

9:40 am-5:40 pm

1 stop36h 00m

Washington, D.C. Dulles Intl

mar. 11/11

5:25 pm-11:15 am

1 stop12h 50m

$544

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 54 results

...

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.

Cheapflights Insights

Everything you need to know about your flight from Porto to Washington, D.C.

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.

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.
How long is the flight from Porto to Washington, D.C.?
Departing from Porto to Washington, D.C. will take you 11h 45m. The distance from Porto to Washington, D.C. is about 3537 mi. This flight may include one or multiple stops.
What is the cheapest airline to fly from Porto to Washington, D.C. round-trip?
According to our current data, TAP AIR PORTUGAL ($480), 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 this airline.
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 - Washington, D.C. Reagan-National, Porto - Washington, D.C. Dulles Intl or Porto - Baltimore/Washington 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 $292). Flying from Porto to Washington, D.C. in April is currently the most expensive (average of $337). 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.

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Arlington

Alexandria

Tysons

Silver Spring

Springfield

Gaithersburg

Fredericksburg

Linthicum Heights

Fairfax

Falls Church

Owings Mills

Manassas

Rockville

Hanover

Oxon Hill

Laurel

Towson

National Harbor

Dundalk

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

Airline	Cheapest	Average	Flexibility	On-time
TAP AIR PORTUGAL	Cheapest$480	Average$841	FlexibilityNo cancel fee	On-timeN/A

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$343+ 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 10/15. Fares are subject to change and may not be available on all flights or dates of travel.

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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 septiembre 16, 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 septiembre 16, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Porto to Washington, D.C. that are best for you.

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.

Cheapflights Insights

Everything you need to know about your flight from Porto to Washington, D.C.

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 septiembre 16, 2025.

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.?

How long is the flight from Porto to Washington, D.C.?

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

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 Washington, D.C.?

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Alternative routes for Porto to Washington, D.C.

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

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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 septiembre 16, 2025.