Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Porto to District of Columbia from $337

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Porto to District of Columbia departing on 4/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Porto to District of Columbia

Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
6:00 am - 2:35 pm
OPO
-
IAD
13h 35m
1 stop
Lufthansa Logo
10:00 pm - 3:25 pm
IAD
-
OPO
12h 25m
1 stop
$440Lufthansa
Thu, Feb 12 - Wed, Feb 25
Lufthansa Logo
6:00 am - 2:35 pm
OPO
-
IAD
13h 35m
1 stop
Lufthansa Logo
10:00 pm - 3:25 pm
IAD
-
OPO
12h 25m
1 stop
$441Lufthansa
Thu, Feb 12 - Wed, Feb 25
TAP AIR PORTUGAL Logo
9:00 am - 3:05 pm
OPO
-
IAD
11h 05m
1 stop
TAP AIR PORTUGAL Logo
10:35 pm - 7:00 pm
IAD
-
OPO
15h 25m
1 stop
$445TAP AIR PORTUGAL
Tue, Apr 21 - Wed, Apr 29
TAP AIR PORTUGAL Logo
5:05 am - 3:05 pm
OPO
-
IAD
15h 00m
1 stop
TAP AIR PORTUGAL Logo
10:35 pm - 8:25 pm
IAD
-
OPO
16h 50m
1 stop
$446TAP AIR PORTUGAL
Tue, Apr 21 - Wed, Apr 29
Multiple Airlines Logo
6:00 am - 3:50 pm
OPO
-
IAD
14h 50m
1 stop
Multiple Airlines Logo
5:45 pm - 11:15 am
IAD
-
OPO
12h 30m
1 stop
$449Multiple Airlines
Thu, Feb 12 - Mon, Feb 16
United Airlines Logo
6:00 am - 3:50 pm
OPO
-
IAD
14h 50m
1 stop
United Airlines Logo
5:34 pm - 9:30 am
IAD
-
OPO
10h 56m
1 stop
$458United Airlines
Thu, Feb 12 - Wed, Feb 25
Multiple Airlines Logo
6:00 am - 3:50 pm
OPO
-
IAD
14h 50m
1 stop
Multiple Airlines Logo
5:45 pm - 11:15 am
IAD
-
OPO
12h 30m
1 stop
$459Multiple Airlines
Wed, Feb 25 - Wed, Mar 4
United Airlines Logo
6:00 am - 8:15 pm
OPO
-
IAD
19h 15m
1 stop
United Airlines Logo
8:36 am - 9:30 am
IAD
-
OPO
19h 54m
1 stop
$460United Airlines
Sat, Feb 14 - Sat, Feb 28
Delta Logo
5:00 am - 7:56 pm
OPO
-
DCA
19h 56m
2 stops
Delta Logo
12:05 pm - 10:30 am
DCA
-
OPO
17h 25m
2 stops
$470Delta
Thu, Feb 12 - Wed, Feb 25
Delta Logo
5:00 am - 8:32 pm
OPO
-
DCA
20h 32m
2 stops
Delta Logo
12:05 pm - 10:30 am
DCA
-
OPO
17h 25m
2 stops
$477Delta
Thu, Feb 12 - Wed, Feb 25

TAP AIR PORTUGAL flights from Porto to District of Columbia

Our best TAP AIR PORTUGAL deals on Porto to District of Columbia flight tickets
TAP AIR PORTUGAL
Apr 21
OPO9:00 amPorto
11h 05m
1 stop
IAD3:05 pmWashington, D.C. Dulles Intl
Apr 29
IAD10:35 pmWashington, D.C. Dulles Intl
15h 25m
1 stop
OPO7:00 pmPorto
$445
TAP AIR PORTUGAL
Apr 21
OPO5:05 amPorto
15h 00m
1 stop
IAD3:05 pmWashington, D.C. Dulles Intl
Apr 29
IAD10:35 pmWashington, D.C. Dulles Intl
16h 50m
1 stop
OPO8:25 pmPorto
$446
TAP AIR PORTUGAL
Jan 31
OPO8:55 amPorto
11h 20m
1 stop
IAD3:15 pmWashington, D.C. Dulles Intl
Feb 7
IAD5:30 pmWashington, D.C. Dulles Intl
12h 30m
1 stop
OPO11:00 amPorto
$618

Lufthansa flights from Porto to District of Columbia

Our best Lufthansa deals on Porto to District of Columbia flight tickets
Lufthansa
Feb 12
OPO6:00 amPorto
13h 35m
1 stop
IAD2:35 pmWashington, D.C. Dulles Intl
Feb 25
IAD10:00 pmWashington, D.C. Dulles Intl
12h 25m
1 stop
OPO3:25 pmPorto
$440
Lufthansa
Feb 12
OPO6:00 amPorto
13h 35m
1 stop
IAD2:35 pmWashington, D.C. Dulles Intl
Feb 25
IAD10:00 pmWashington, D.C. Dulles Intl
12h 25m
1 stop
OPO3:25 pmPorto
$441
Lufthansa
Feb 27
OPO6:00 amPorto
13h 35m
1 stop
IAD2:35 pmWashington, D.C. Dulles Intl
Mar 15
IAD7:00 pmWashington, D.C. Dulles Intl
12h 40m
1 stop
OPO11:40 amPorto
$444

momondo Fare Finder

 
Customize your flight search to find flights from Porto to District of Columbia 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, momondo users made 832,500 searches. Data last updated January 29, 2026.
Use the filters below to find and compare flights from Porto to District of Columbia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Thu 2/12

6:00 am-2:35 pm

1 stop13h 35m

Washington, D.C. Dulles Intl

Wed 2/25

10:00 pm-3:25 pm

1 stop12h 25m

$440

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Thu 2/12

6:00 am-2:35 pm

1 stop13h 35m

Washington, D.C. Dulles Intl

Wed 2/25

10:00 pm-3:25 pm

1 stop12h 25m

$441

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Tue 4/21

9:00 am-3:05 pm

1 stop11h 05m

Washington, D.C. Dulles Intl

Wed 4/29

10:35 pm-7:00 pm

1 stop15h 25m

$445

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Tue 4/21

5:05 am-3:05 pm

1 stop15h 00m

Washington, D.C. Dulles Intl

Wed 4/29

10:35 pm-8:25 pm

1 stop16h 50m

$446

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Thu 2/12

6:00 am-3:50 pm

1 stop14h 50m

Washington, D.C. Dulles Intl

Mon 2/16

5:45 pm-11:15 am

1 stop12h 30m

$449

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Thu 2/12

6:00 am-3:50 pm

1 stop14h 50m

Washington, D.C. Dulles Intl

Wed 2/25

5:34 pm-9:30 am

1 stop10h 56m

$458

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Wed 2/25

6:00 am-3:50 pm

1 stop14h 50m

Washington, D.C. Dulles Intl

Wed 3/4

5:45 pm-11:15 am

1 stop12h 30m

$459

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Sat 2/14

6:00 am-8:15 pm

1 stop19h 15m

Washington, D.C. Dulles Intl

Sat 2/28

8:36 am-9:30 am

1 stop19h 54m

$460

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Thu 2/12

5:00 am-7:56 pm

2 stops19h 56m

Washington, D.C. Reagan-National

Wed 2/25

12:05 pm-10:30 am

2 stops17h 25m

$470

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Thu 2/12

5:00 am-8:32 pm

2 stops20h 32m

Washington, D.C. Reagan-National

Wed 2/25

12:05 pm-10:30 am

2 stops17h 25m

$477

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to District of Columbia from

How to get the cheapest flight ticket from Porto to District of Columbia

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

Can stopping save me money on Porto to District of Columbia flights?

You could potentially save up to 69% on your flight if you consider stops on a Porto to District of Columbia flight.

Cheap Porto to District of Columbia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Porto to District of Columbia

Fastest flight time

12h 10m

Direct flights

None
The fastest flight from Porto to District of Columbia takes 12h 10m
There are no direct flights from Porto to District of Columbia. There are no popular flight routes from Porto to District of Columbia.
Search flight deals

  • When did momondo last update prices for flights from Porto Airport to District of Columbia?

    Prices for flights from Porto Airport to District of Columbia are refreshed on a daily basis.

  • How many operators does momondo search for flights from Porto Airport to District of Columbia?

  • How old do you have to be to fly from Porto Airport to District of Columbia?

    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 District of Columbia.

  • What documentation or ID do you need to fly to District of Columbia?

    The travel and health documents you'll need for your trip to District of Columbia may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at District of Columbia. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Porto to District of Columbia

Compare and see reviews for airlines that fly from Porto to District of Columbia with momondo
Airline
Rating
Free Cancellation
Price
TAP AIR PORTUGALPriceFrom $492Free CancellationRating
7.1
2,130 reviews
Search TAP AIR PORTUGAL flights

Why use momondo?

Why should I use momondo to find a flight deal from Porto to District of Columbia?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Porto to District of Columbia. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Porto to District of Columbia with flexible booking policies on momondo?

All flight searches from Porto to District of Columbia on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Porto to District of Columbia?

Once you have performed a search for Porto to District of Columbia flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Porto to District of Columbia right now. Can momondo alert me if prices change?

If you are simply researching potential flights to District of Columbia, momondo offers a useful price alert feature which will track prices for flights to District of Columbia from Porto and alert you when they change.

An easier way to manage your District of Columbia trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 2/28
Sat 3/7
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to District of Columbia

Popular cities in District of Columbia

Popular flights according to clicks in the last 7 days on momondo
Flights to New Yorkfrom $38
Flights to Los Angelesfrom $31
Flights to Miamifrom $49
Flights to Chicagofrom $49
Flights to Orlandofrom $44
Flights to San Franciscofrom $73
Flights to Las Vegasfrom $53
Flights to Washington, D.C.from $49
Flights to Bostonfrom $52
Flights to Atlantafrom $44
Flights to Dallasfrom $54
Flights to Seattlefrom $56