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

$351 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on Brussels Airlines and SWISS, with prices starting from $359 and $373, respectively.

What are the most popular airlines that fly from Washington, D.C. Dulles Intl Airport to Porto?

Consider American Airlines, Air France or British Airways when booking your flight. These represent the most popular airlines when flying from Washington, D.C. Dulles Intl Airport to Porto.

Can I find flights from Washington, D.C. Dulles Intl Airport to Porto for under $500 on Cheapflights?

Yes, there are multiple flights from Washington, D.C. Dulles Intl Airport to Porto for under $500. The cheapest flight booked recently is on Delta for just $420, but on average you can expect to pay $460.

Are there last-minute flights available from Washington, D.C. Dulles Intl Airport to Porto for under $800?

There are currently 20+ open flights from Washington, D.C. Dulles Intl Airport to Porto within the next 7 days for less than $800.

Which airlines flying from Washington, D.C. Dulles Intl to Porto have flexible cancellations due to COVID-19?

Some of our airline partners flying from Washington, D.C. Dulles Intl to Porto have new flexible policies in place due to COVID-19. TAP AIR PORTUGAL, British Airways, and Iberia are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like TAP AIR PORTUGAL with this kind of flexibility.

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

January is one of the best times of the year to fly to Porto from Washington, D.C. Dulles Intl Airport. Prices for January average $504 per person but you can even find prices for as low as $398. The most expensive prices can be found in the month of December. Opting for a January flight can save you 27% on your journey compared to booking in December

When is the cheapest time to fly from Washington, D.C. Dulles Intl Airport to Porto (IAD - OPO)?

When flying from Washington, D.C. Dulles Intl Airport to Porto, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

Located just 6.8 mi from the city center, Porto is the airport most travelers will use when flying to Porto from Washington, D.C. Dulles Intl. Booking flights from Washington, D.C. Dulles Intl to Porto (OPO) should be relatively easy as there are 0 daily inbound flights from Washington, D.C. Dulles Intl from 11 different airlines.

What does IAD to OPO mean?

These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Washington, D.C. Dulles Intl Airport to Porto Airport flight would often be abbreviated as a IAD to OPO flight.

Flights from Washington, D.C. Dulles Intl Airport (IAD) to Porto, Portugal from $274

How to find the cheapest flight from Dulles Intl (IAD) to Porto (OPO)

Popular in	December
Cheapest in	April
Round-trip from	$452
One-way from	$375

High demand for flights, 48% potential price rise

Search Deals

Best time to find cheap flights, 24% potential price drop

Search Deals

From Washington, D.C. Dulles Intl to Porto

Search Deals

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

Search Deals

IAD - OPO Price	$452 - $1,173
OPO Temperature	48.2 - 68 °F
OPO Rainfall	0.7 - 7.7 inches

IAD - OPO

Price

$452 - $1,173

OPO

Temperature

48.2 - 68 °F

OPO

Rainfall

0.7 - 7.7 inches

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 61 days in advance, which can save you up to 12% on flights from Washington, D.C. Dulles Intl Airport to Porto compared to booking the week you need them. Waiting 61 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $552. For sooner than that we have options available in the next 3 days from $563.

Cheap flights from Dulles Intl to Porto in June, July 2023

The lowest fares we've come across on flights traveling from Washington, D.C. to Porto in June and July 2023. For more flight deals, be sure to check back very soon.

Jun 9 - Jun 14

IAD

Washington, D.C. Dulles Intl

OPO

Porto

2 stops

20h 00m

OPO

Porto

IAD

Washington, D.C. Dulles Intl

3 stops

33h 30m

$746

Multiple Airlines

Deal found 5/31

Jun 9 - Jun 14

IAD

Washington, D.C. Dulles Intl

OPO

Porto

2 stops

16h 30m

OPO

Porto

IAD

Washington, D.C. Dulles Intl

2 stops

32h 00m

$785

Multiple Airlines

Deal found 5/31

Jun 9 - Jun 15

IAD

Washington, D.C. Dulles Intl

OPO

Porto

2 stops

16h 30m

OPO

Porto

IAD

Washington, D.C. Dulles Intl

3 stops

27h 15m

$797

Multiple Airlines

Deal found 5/31

Jun 6 - Jun 13

IAD

Washington, D.C. Dulles Intl

OPO

Porto

2 stops

17h 10m

OPO

Porto

IAD

Washington, D.C. Dulles Intl

1 stop

12h 35m

$831

Multiple Airlines

Deal found 5/31

Jun 9 - Jun 15

IAD

Washington, D.C. Dulles Intl

OPO

Porto

2 stops

20h 00m

OPO

Porto

IAD

Washington, D.C. Dulles Intl

2 stops

16h 55m

$849

Multiple Airlines

Deal found 5/31

Jun 8 - Jun 14

IAD

Washington, D.C. Dulles Intl

OPO

Porto

2 stops

21h 10m

OPO

Porto

IAD

Washington, D.C. Dulles Intl

3 stops

33h 30m

$853

Multiple Airlines

Deal found 5/31

Jun 9 - Jun 16

IAD

Washington, D.C. Dulles Intl

OPO

Porto

2 stops

16h 30m

OPO

Porto

IAD

Washington, D.C. Dulles Intl

2 stops

16h 10m

$895

Multiple Airlines

Deal found 5/31

Jun 8 - Jun 15

IAD

Washington, D.C. Dulles Intl

OPO

Porto

2 stops

21h 10m

OPO

Porto

IAD

Washington, D.C. Dulles Intl

3 stops

27h 15m

$904

Multiple Airlines

Deal found 5/31

Jun 9 - Jun 14

IAD

Washington, D.C. Dulles Intl

OPO

Porto

2 stops

20h 00m

OPO

Porto

IAD

Washington, D.C. Dulles Intl

1 stop

15h 20m

$912

Multiple Airlines

Deal found 5/31

Dulles Intl to Porto 2023 flight deals

The lowest fares we've come across on flights traveling from Washington, D.C. to Porto in June and July 2023. For more flight deals, be sure to check back very soon.

Nov 19 - Nov 22

IAD

Washington, D.C. Dulles Intl

OPO

Porto

1 stop

11h 15m

OPO

Porto

IAD

Washington, D.C. Dulles Intl

1 stop

15h 50m

$420

Delta

Deal found 5/31

Nov 19 - Nov 23

IAD

Washington, D.C. Dulles Intl

OPO

Porto

1 stop

11h 15m

OPO

Porto

IAD

Washington, D.C. Dulles Intl

2 stops

22h 46m

$430

Delta

Deal found 5/31

Sep 10 - Sep 21

IAD

Washington, D.C. Dulles Intl

OPO

Porto

1 stop

17h 10m

OPO

Porto

IAD

Washington, D.C. Dulles Intl

1 stop

29h 30m

$433

Brussels Airlines

Deal found 5/31

Sep 24 - Sep 30

IAD

Washington, D.C. Dulles Intl

OPO

Porto

1 stop

13h 05m

OPO

Porto

IAD

Washington, D.C. Dulles Intl

1 stop

25h 30m

$436

Brussels Airlines

Deal found 5/30

Dec 31 - Jan 15

IAD

Washington, D.C. Dulles Intl

OPO

Porto

1 stop

11h 45m

OPO

Porto

IAD

Washington, D.C. Dulles Intl

2 stops

16h 29m

$438

Delta

Deal found 5/31

Sep 24 - Sep 30

IAD

Washington, D.C. Dulles Intl

OPO

Porto

1 stop

17h 10m

OPO

Porto

IAD

Washington, D.C. Dulles Intl

1 stop

29h 35m

$440

Brussels Airlines

Deal found 6/1

Oct 16 - Oct 20

IAD

Washington, D.C. Dulles Intl

OPO

Porto

1 stop

18h 20m

OPO

Porto

IAD

Washington, D.C. Dulles Intl

1 stop

11h 45m

$449

Multiple Airlines

Deal found 6/1

Nov 28 - Dec 19

IAD

Washington, D.C. Dulles Intl

OPO

Porto

2 stops

18h 45m

OPO

Porto

IAD

Washington, D.C. Dulles Intl

1 stop

35h 10m

$451

Lufthansa

Deal found 5/31

Nov 18 - Nov 23

IAD

Washington, D.C. Dulles Intl

OPO

Porto

1 stop

11h 50m

OPO

Porto

IAD

Washington, D.C. Dulles Intl

1 stop

15h 45m

$453

KLM

Deal found 5/31

Cheap Delta flights from Dulles Intl to Porto

Peruse some of the lowest-priced Delta flights we've found from Washington, D.C. to Porto. Deals update often to give you more flight options matching your criteria

Nov 19 - Nov 23

IAD

Washington, D.C. Dulles Intl

OPO

Porto

1 stop

11h 15m

OPO

Porto

IAD

Washington, D.C. Dulles Intl

1 stop

15h 50m

$420

Delta

Deal found 5/31

Nov 19 - Nov 23

IAD

Washington, D.C. Dulles Intl

OPO

Porto

1 stop

11h 15m

OPO

Porto

IAD

Washington, D.C. Dulles Intl

2 stops

22h 46m

$430

Delta

Deal found 5/31

Nov 18 - Nov 23

IAD

Washington, D.C. Dulles Intl

OPO

Porto

1 stop

11h 45m

OPO

Porto

IAD

Washington, D.C. Dulles Intl

2 stops

22h 46m

$463

Delta

Deal found 5/31

Sep 29 - Oct 7

IAD

Washington, D.C. Dulles Intl

OPO

Porto

1 stop

13h 25m

OPO

Porto

IAD

Washington, D.C. Dulles Intl

1 stop

33h 10m

$471

Delta

Deal found 5/31

Sep 26 - Oct 10

IAD

Washington, D.C. Dulles Intl

OPO

Porto

1 stop

30h 20m

OPO

Porto

IAD

Washington, D.C. Dulles Intl

1 stop

33h 10m

$472

Delta

Deal found 5/31

Jun 7 - Jun 14

IAD

Washington, D.C. Dulles Intl

OPO

Porto

2 stops

16h 15m

OPO

Porto

IAD

Washington, D.C. Dulles Intl

1 stop

15h 35m

$1,163

Delta

Deal found 5/31

Cheap Brussels Airlines flights from Dulles Intl to Porto

Some of the best deals we've found on Brussels Airlines flights traveling from Washington, D.C. to Porto. Deals frequently update to provide users with more options.

Sep 10 - Sep 21

IAD

Washington, D.C. Dulles Intl

OPO

Porto

1 stop

17h 10m

OPO

Porto

IAD

Washington, D.C. Dulles Intl

1 stop

29h 30m

$433

Brussels Airlines

Deal found 5/31

Sep 24 - Sep 30

IAD

Washington, D.C. Dulles Intl

OPO

Porto

1 stop

13h 05m

OPO

Porto

IAD

Washington, D.C. Dulles Intl

1 stop

25h 30m

$436

Brussels Airlines

Deal found 5/30

Last minute flights from Dulles Intl to Porto

Book one of these great deals on flights from Washington, D.C. to Porto. It's wise to confirm all flight details are correct before booking.

Jun 9 - Jun 14

IAD

Washington, D.C. Dulles Intl

OPO

Porto

2 stops

20h 00m

OPO

Porto

IAD

Washington, D.C. Dulles Intl

3 stops

33h 30m

$746

Multiple Airlines

Deal found 5/31

Jun 9 - Jun 14

IAD

Washington, D.C. Dulles Intl

OPO

Porto

2 stops

16h 30m

OPO

Porto

IAD

Washington, D.C. Dulles Intl

2 stops

32h 00m

$785

Multiple Airlines

Deal found 5/31

Jun 9 - Jun 15

IAD

Washington, D.C. Dulles Intl

OPO

Porto

2 stops

16h 30m

OPO

Porto

IAD

Washington, D.C. Dulles Intl

3 stops

27h 15m

$797

Multiple Airlines

Deal found 5/31

Jun 6 - Jun 13

IAD

Washington, D.C. Dulles Intl

OPO

Porto

2 stops

17h 10m

OPO

Porto

IAD

Washington, D.C. Dulles Intl

1 stop

12h 35m

$831

Multiple Airlines

Deal found 5/31

Jun 9 - Jun 15

IAD

Washington, D.C. Dulles Intl

OPO

Porto

2 stops

20h 00m

OPO

Porto

IAD

Washington, D.C. Dulles Intl

2 stops

16h 55m

$849

Multiple Airlines

Deal found 5/31

Jun 8 - Jun 14

IAD

Washington, D.C. Dulles Intl

OPO

Porto

2 stops

21h 10m

OPO

Porto

IAD

Washington, D.C. Dulles Intl

3 stops

33h 30m

$853

Multiple Airlines

Deal found 5/31

Jun 9 - Jun 16

IAD

Washington, D.C. Dulles Intl

OPO

Porto

2 stops

16h 30m

OPO

Porto

IAD

Washington, D.C. Dulles Intl

2 stops

16h 10m

$895

Multiple Airlines

Deal found 5/31

Jun 8 - Jun 15

IAD

Washington, D.C. Dulles Intl

OPO

Porto

2 stops

21h 10m

OPO

Porto

IAD

Washington, D.C. Dulles Intl

3 stops

27h 15m

$904

Multiple Airlines

Deal found 5/31

Jun 9 - Jun 14

IAD

Washington, D.C. Dulles Intl

OPO

Porto

2 stops

20h 00m

OPO

Porto

IAD

Washington, D.C. Dulles Intl

1 stop

15h 20m

$912

Multiple Airlines

Deal found 5/31

One-way flights to Porto from Dulles Intl

Users in need of a one-way flight from Washington, D.C. to Porto can choose from these deals. Those seeking round-trip flights from Washington, D.C. to Porto should utilize the search form at the the top of the page.

Sep 27

IAD

Washington, D.C. Dulles Intl

OPO

Porto

1 stop

17h 55m

$274

Multiple Airlines

Deal found 5/31

Nov 18

IAD

Washington, D.C. Dulles Intl

OPO

Porto

1 stop

18h 40m

$292

Multiple Airlines

Deal found 5/31

Aug 16

IAD

Washington, D.C. Dulles Intl

OPO

Porto

2 stops

21h 10m

$322

Multiple Airlines

Deal found 5/31

Aug 25

IAD

Washington, D.C. Dulles Intl

OPO

Porto

1 stop

22h 05m

$324

Multiple Airlines

Deal found 5/30

Sep 27

IAD

Washington, D.C. Dulles Intl

OPO

Porto

2 stops

31h 15m

$325

Multiple Airlines

Deal found 5/31

Aug 16

IAD

Washington, D.C. Dulles Intl

OPO

Porto

1 stop

15h 45m

$329

Multiple Airlines

Deal found 5/31

Aug 18

IAD

Washington, D.C. Dulles Intl

OPO

Porto

1 stop

22h 05m

$336

Multiple Airlines

Deal found 5/31

Nov 19

IAD

Washington, D.C. Dulles Intl

OPO

Porto

2 stops

19h 45m

$339

Multiple Airlines

Deal found 5/31

Sep 19

IAD

Washington, D.C. Dulles Intl

OPO

Porto

3 stops

23h 25m

$348

Multiple Airlines

Deal found 5/31

Find flights from Dulles Intl to Porto within your budget

Fly from

Fly to

Budget

$420 - $481

Route

Depart

Return

Price

Washington, D.C. Dulles IntlPorto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Sun 11/19

1 stop11h 15m

Porto

Thu 11/23

1 stop15h 50m

$420

Pick Dates

Washington, D.C. Dulles IntlPorto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Sun 9/10

1 stop17h 10m

Porto

Thu 9/21

1 stop29h 30m

$433

Pick Dates

Washington, D.C. Dulles IntlPorto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Mon 10/16

1 stop10h 05m

Porto

Fri 10/20

1 stop11h 45m

$449

Pick Dates

Washington, D.C. Dulles IntlPorto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Tue 11/28

2 stops18h 45m

Porto

Tue 12/19

1 stop35h 10m

$451

Pick Dates

Washington, D.C. Dulles IntlPorto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Sat 11/18

1 stop11h 50m

Porto

Thu 11/23

1 stop15h 45m

$453

Pick Dates

Washington, D.C. Dulles IntlPorto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Wed 10/18

1 stop10h 05m

Porto

Mon 10/23

1 stop11h 45m

$456

Pick Dates

Washington, D.C. Dulles IntlPorto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Sat 11/18

1 stop12h 40m

Porto

Fri 11/24

1 stop30h 10m

$468

Pick Dates

Washington, D.C. Dulles IntlPorto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Mon 10/16

2 stops27h 55m

Porto

Fri 10/20

1 stop11h 45m

$478

Pick Dates

Washington, D.C. Dulles IntlPorto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Thu 11/23

1 stop14h 05m

Porto

Wed 11/29

2 stops32h 15m

$481

Pick Dates

Flights are sorted by cheapest first

Deals found on 5/31

Reviews of Airlines Servicing Porto

To help decide which airline to fly from Washington, D.C. to Porto, see what other customers have to say about Delta, Brussels Airlines and Lufthansa. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

2,369 reviews

Check prices

Reviews

1 / 10

The crew was amazing. They took such good care of us. I mistakenly thought our seats were changed and they investigated the issue. Later, I realized it was my mistake but they took great pains to rectify the issue. Also, the flight attendant that worked our section was so pleasant and helpful. Good flight

Delta

8.0

Very good

2,369 reviews

Delta

8.0

Very good

2,369 reviews

Check prices

Reviews

1 / 10

The crew was amazing. They took such good care of us. I mistakenly thought our seats were changed and they investigated the issue. Later, I realized it was my mistake but they took great pains to rectify the issue. Also, the flight attendant that worked our section was so pleasant and helpful. Good flight

SWISS

7.6

Good

352 reviews

Delta

8.0

Very good

2,369 reviews

Check prices

Reviews

1 / 10

The crew was amazing. They took such good care of us. I mistakenly thought our seats were changed and they investigated the issue. Later, I realized it was my mistake but they took great pains to rectify the issue. Also, the flight attendant that worked our section was so pleasant and helpful. Good flight

KLM

7.6

Good

160 reviews

Delta

8.0

Very good

2,369 reviews

Check prices

Reviews

1 / 10

The crew was amazing. They took such good care of us. I mistakenly thought our seats were changed and they investigated the issue. Later, I realized it was my mistake but they took great pains to rectify the issue. Also, the flight attendant that worked our section was so pleasant and helpful. Good flight

American Airlines

7.3

Good

2,149 reviews

Delta

8.0

Very good

2,369 reviews

Check prices

Reviews

1 / 10

The crew was amazing. They took such good care of us. I mistakenly thought our seats were changed and they investigated the issue. Later, I realized it was my mistake but they took great pains to rectify the issue. Also, the flight attendant that worked our section was so pleasant and helpful. Good flight

Iberia

7.1

Good

582 reviews

Delta

8.0

Very good

2,369 reviews

Check prices

Reviews

1 / 10

The crew was amazing. They took such good care of us. I mistakenly thought our seats were changed and they investigated the issue. Later, I realized it was my mistake but they took great pains to rectify the issue. Also, the flight attendant that worked our section was so pleasant and helpful. Good flight

Related info for your journey

Currently priced at $420, Delta will fly you from Washington, D.C. Dulles Intl Airport to Porto and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Brussels Airlines and Lufthansa - these airlines can fly you to your destination from $433 and $451, respectively. These flights start at 23% lower than the current average price 3 months from now.

Alternative routes for Dulles Intl to Porto

Dulles Intl to Lisbonfrom $517 pp

Top 10 airlines flying from Dulles Intl to Porto

Airline	Cheapest	Average	Flexibility	On-time	COVID-19 safety
SWISS	Cheapest$283	Average$457	FlexibilityNo cancel fee	On-time79%	COVID-19 safety	Search SWISS flights
TAP AIR PORTUGAL	Cheapest$360	Average$762	FlexibilityNo cancel fee	On-timeN/A	COVID-19 safety	Search TAP AIR PORTUGAL flights
Iberia	Cheapest$393	Average$603	FlexibilityNo cancel fee	On-time77%	COVID-19 safety	Search Iberia flights
American Airlines	Cheapest$401	Average$775	FlexibilityNo cancel fee	On-time71%	COVID-19 safety	Search American Airlines flights
United Airlines	Cheapest$407	Average$696	FlexibilityNo cancel fee	On-time69%	COVID-19 safety	Search United Airlines flights
Lufthansa	Cheapest$408	Average$500	FlexibilityNo cancel fee	On-time76%	COVID-19 safety	Search Lufthansa flights
KLM	Cheapest$411	Average$467	FlexibilityNo cancel fee	On-time75%	COVID-19 safety	Search KLM flights
Delta	Cheapest$417	Average$639	FlexibilityNo cancel fee	On-timeN/A	COVID-19 safety	Search Delta flights
Brussels Airlines	Cheapest$426	Average$451	FlexibilityNo cancel fee	On-timeN/A	COVID-19 safety	Search Brussels Airlines flights
Air France	Cheapest$434	Average$761	FlexibilityNo cancel fee	On-time77%	COVID-19 safety	Search Air France flights

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Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport flights

Cheap flights from Dulles Intl (IAD) to Porto (OPO) from $274

This is the cheapest one-way flight price, found on 5/31. Prices may vary by date and flight preferences.

How to find the cheapest flight from Dulles Intl (IAD) to Porto (OPO)

All the information you need to plan the best IAD to OPO flight in 2023: compare Dulles Intl to Porto flight prices with the expected peak season, weather and rainfall in Porto.

Popular in

Cheapest in

Round-trip from

One-way from

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to Porto?

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

When is the cheapest time to fly from Washington, D.C. Dulles Intl Airport to Porto (IAD - OPO)?

Cheap flights from Dulles Intl to Porto in June, July 2023

The best prices found for IAD to OPO flights for June, July

The lowest fares we've come across on flights traveling from Washington, D.C. to Porto in June and July 2023. For more flight deals, be sure to check back very soon.

Dulles Intl to Porto 2023 flight deals

Cheap flights to Porto from Dulles Intl found for this year

The lowest fares we've come across on flights traveling from Washington, D.C. to Porto in June and July 2023. For more flight deals, be sure to check back very soon.

Cheap Delta flights from Dulles Intl to Porto

Peruse some of the lowest-priced Delta flights we've found from Washington, D.C. to Porto. Deals update often to give you more flight options matching your criteria

Cheap Brussels Airlines flights from Dulles Intl to Porto

Some of the best deals we've found on Brussels Airlines flights traveling from Washington, D.C. to Porto. Deals frequently update to provide users with more options.

Last minute flights from Dulles Intl to Porto

Late deals on return flights to Porto from Dulles Intl, departing today and this week

Book one of these great deals on flights from Washington, D.C. to Porto. It's wise to confirm all flight details are correct before booking.

One-way flights to Porto from Dulles Intl

The cheapest one-way flights from Dulles Intl to Porto

Users in need of a one-way flight from Washington, D.C. to Porto can choose from these deals. Those seeking round-trip flights from Washington, D.C. to Porto should utilize the search form at the the top of the page.

Find flights from Dulles Intl to Porto within your budget

Use the slider to find flights from Dulles Intl to Porto that fit your budget.

Reviews of Airlines Servicing Porto

Related info for your journey

Useful info, stats and facts about Dulles Intl to Porto flights.

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

Which airlines flying from Washington, D.C. Dulles Intl to Porto have flexible cancellations due to COVID-19?

Can I find flights from Washington, D.C. Dulles Intl Airport to Porto for under $500 on Cheapflights?

Are there last-minute flights available from Washington, D.C. Dulles Intl Airport to Porto for under $800?

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

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

What are the most popular airlines that fly from Washington, D.C. Dulles Intl Airport to Porto?

What does IAD to OPO mean?

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Top 10 airlines flying from Dulles Intl to Porto

The chart below displays the airlines Cheapflights users traveling from Dulles Intl to Porto choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.

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