What is the cheapest airline that flies from Porto to Washington, D.C. Reagan-National?

British Airways, American Airlines, and TAP AIR PORTUGAL are the most popular carriers operating from Porto to Washington, D.C. Reagan-National

When did momondo last update prices for flights from Porto Airport to Washington, D.C. Reagan-National Airport?

Prices for flights from Porto Airport to Washington, D.C. Reagan-National Airport were last updated today.

How old do you have to be to fly from Porto Airport to Washington, D.C. Reagan-National Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Porto Airport to Washington, D.C. Reagan-National Airport.

What documentation or ID do you need to fly to Washington, D.C. Reagan-National Airport?

The required travel and health documents for your Washington, D.C. Reagan-National Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington, D.C. Reagan-National Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$455 Cheap Flights from Porto to Washington, D.C. Reagan-National Airport in 2026

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Find the cheapest flights from Porto to Washington, D.C.

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Cheap round-trip flights

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6:00 am - 10:43 pm

OPO

DCA

21h 43m

2 stops

6:00 pm - 9:45 am

DCA

OPO

10h 45m

1 stop

$642United Airlines

Thu, Apr 16 - Mon, Apr 20

6:00 am - 9:06 pm

OPO

DCA

20h 06m

2 stops

4:30 pm - 9:45 am

DCA

OPO

12h 15m

1 stop

$643United Airlines

Tue, May 19 - Sun, May 31

6:00 am - 10:43 pm

OPO

DCA

21h 43m

2 stops

4:30 pm - 9:45 am

DCA

OPO

12h 15m

1 stop

$648United Airlines

Thu, Apr 16 - Mon, Apr 20

12:35 pm - 7:31 pm

OPO

DCA

11h 56m

1 stop

6:00 pm - 9:45 am

DCA

OPO

10h 45m

1 stop

$662United Airlines

Thu, Apr 16 - Mon, Apr 20

12:35 pm - 7:31 pm

OPO

DCA

11h 56m

1 stop

6:00 pm - 9:45 am

DCA

OPO

10h 45m

1 stop

$666United Airlines

Thu, Apr 16 - Mon, Apr 20

12:35 pm - 7:31 pm

OPO

DCA

11h 56m

1 stop

6:00 pm - 9:45 am

DCA

OPO

10h 45m

1 stop

$668United Airlines

Thu, Apr 16 - Mon, Apr 20

6:00 am - 10:43 pm

OPO

DCA

21h 43m

2 stops

4:10 pm - 5:35 pm

DCA

OPO

44h 25m

2 stops

$669Air Canada

Thu, Apr 16 - Mon, Apr 20

6:00 am - 10:43 pm

OPO

DCA

21h 43m

2 stops

6:00 pm - 9:45 am

DCA

OPO

10h 45m

1 stop

$670United Airlines

Thu, Apr 16 - Mon, Apr 20

6:00 am - 10:43 pm

OPO

DCA

21h 43m

2 stops

4:10 pm - 5:35 pm

DCA

OPO

44h 25m

2 stops

$673Air Canada

Thu, Apr 16 - Mon, Apr 20

6:00 am - 8:53 am

OPO

DCA

31h 53m

2 stops

4:10 pm - 5:35 pm

DCA

OPO

44h 25m

2 stops

$674Air Canada

Thu, Apr 16 - Mon, Apr 20

Delta flights from Porto to Washington, D.C. Reagan-National Airport

Our best Delta deals on Porto to Washington, D.C. Reagan-National Airport flight tickets

Delta

Aug 29

OPO6:30 amPorto

17h 39m

2 stops

DCA7:09 pmWashington, D.C. Reagan-National

Sep 8

DCA7:30 pmWashington, D.C. Reagan-National

14h 55m

2 stops

OPO3:25 pmPorto

$661

Delta

Apr 13

OPO6:30 amPorto

17h 29m

2 stops

DCA6:59 pmWashington, D.C. Reagan-National

Apr 26

DCA5:00 pmWashington, D.C. Reagan-National

17h 25m

2 stops

OPO3:25 pmPorto

$688

Delta

Jun 15

OPO5:00 amPorto

18h 11m

2 stops

DCA6:11 pmWashington, D.C. Reagan-National

Jul 19

DCA5:00 pmWashington, D.C. Reagan-National

12h 25m

1 stop

OPO10:25 amPorto

$703

Iberia flights from Porto to Washington, D.C. Reagan-National Airport

Our best Iberia deals on Porto to Washington, D.C. Reagan-National Airport flight tickets

Iberia

May 1

OPO12:25 pmPorto

15h 04m

2 stops

DCA10:29 pmWashington, D.C. Reagan-National

May 8

DCA1:25 pmWashington, D.C. Reagan-National

13h 15m

2 stops

OPO7:40 amPorto

$729

Iberia

Jul 2

OPO8:20 amPorto

18h 05m

2 stops

DCA9:25 pmWashington, D.C. Reagan-National

Jul 9

DCA5:00 pmWashington, D.C. Reagan-National

13h 45m

2 stops

OPO11:45 amPorto

$746

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Thu 4/16

6:00 am-10:43 pm

2 stops21h 43m

Washington, D.C. Reagan-National

Mon 4/20

6:00 pm-9:45 am

1 stop10h 45m

$642

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Tue 5/19

6:00 am-9:06 pm

2 stops20h 06m

Washington, D.C. Reagan-National

Sun 5/31

4:30 pm-9:45 am

1 stop12h 15m

$643

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Thu 4/16

6:00 am-10:43 pm

2 stops21h 43m

Washington, D.C. Reagan-National

Mon 4/20

4:30 pm-9:45 am

1 stop12h 15m

$648

Quickest round-trip

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Thu 4/16

12:35 pm-7:31 pm

1 stop11h 56m

Washington, D.C. Reagan-National

Mon 4/20

6:00 pm-9:45 am

1 stop10h 45m

$662

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Thu 4/16

12:35 pm-7:31 pm

1 stop11h 56m

Washington, D.C. Reagan-National

Mon 4/20

6:00 pm-9:45 am

1 stop10h 45m

$666

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Thu 4/16

12:35 pm-7:31 pm

1 stop11h 56m

Washington, D.C. Reagan-National

Mon 4/20

6:00 pm-9:45 am

1 stop10h 45m

$668

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Thu 4/16

6:00 am-10:43 pm

2 stops21h 43m

Washington, D.C. Reagan-National

Mon 4/20

4:10 pm-5:35 pm

2 stops44h 25m

$669

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Thu 4/16

6:00 am-10:43 pm

2 stops21h 43m

Washington, D.C. Reagan-National

Mon 4/20

6:00 pm-9:45 am

1 stop10h 45m

$670

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Thu 4/16

6:00 am-10:43 pm

2 stops21h 43m

Washington, D.C. Reagan-National

Mon 4/20

4:10 pm-5:35 pm

2 stops44h 25m

$673

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Thu 4/16

6:00 am-8:53 am

2 stops31h 53m

Washington, D.C. Reagan-National

Mon 4/20

4:10 pm-5:35 pm

2 stops44h 25m

$674

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Porto to Washington, D.C. Reagan-National Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Can stopping save me money on Porto to Washington, D.C. Reagan-National Airport flights?

You could potentially save up to 56% on your flight if you consider stops on a Porto to Washington, D.C. Reagan-National Airport flight.

When to book flights from Porto to Washington, D.C. Reagan-National Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Porto to Washington, D.C. Reagan-National Airport according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Porto to Washington, D.C. Reagan-National Airport (OPO to DCA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Porto to Washington, D.C. Reagan-National Airport

Fastest flight time	11h 56m
Direct flights	None

The fastest flight from Porto to Washington, D.C. Reagan-National Airport takes 11h 56m

There are no direct flights from Porto to Washington, D.C. Reagan-National Airport. There are no popular flight routes from Porto to Washington, D.C. Reagan-National Airport.

Search flight deals

How far is Porto to Washington, D.C. Reagan-National by plane?
The straight-line distance from Porto to Washington, D.C. Reagan-National is 3524.8 mi. Typically, this will take 11h 56m by plane in normal conditions.
When did momondo last update prices for flights from Porto Airport to Washington, D.C. Reagan-National Airport?
Prices for flights from Porto Airport to Washington, D.C. Reagan-National Airport were last updated today.
How old do you have to be to fly from Porto Airport to Washington, D.C. Reagan-National Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Porto Airport to Washington, D.C. Reagan-National Airport.
What documentation or ID do you need to fly to Washington, D.C. Reagan-National Airport?
The required travel and health documents for your Washington, D.C. Reagan-National Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington, D.C. Reagan-National Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Alexandria

National Harbor

Gettysburg

Arlington

Waldorf

Woodbridge

Colonial Beach

Laurel

Towson

Gaithersburg

Silver Spring

Fredericksburg

Rockville

Tysons

Manassas

Springfield

Linthicum Heights

Bethesda

Fairfax

Reston

Why use momondo?

Why should I use momondo to find a flight deal from Porto to Washington, D.C.?

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Can I find flights from Porto to Washington, D.C. with flexible booking policies on momondo?

Flights from Porto to Washington, D.C. with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Porto to Washington, D.C.?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Washington, D.C. from Porto.

I’m not ready to book a flight from Porto to Washington, D.C. right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Porto to Washington, D.C. now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Washington, D.C. and let you know when they change.