$342+ Cheap flights from Dulles Intl (IAD) to Porto (OPO)

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 10/22. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — OPO
Oct 15 — Oct 221

Find cheap flights from Dulles Intl to Porto with Cheapflights

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The best prices from Washington, D.C. Dulles Intl to Porto are usually found in January or November, booked 16 days in advance, depart on a Sunday or Saturday and return on a Wednesday

Cheap flight deals from Dulles Intl to Porto

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Porto (OPO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 10, 2024.

Popular in

June

Cheapest in

January

Round-trip from

$407
(oojo)

One-way from

$342
(Kiwi.com)
High demand for flights, 32% potential price rise
Best time to find cheap flights, 38% potential price drop
From Washington, D.C. Dulles Intl to Porto
One-way flight from Washington, D.C. Dulles Intl to Porto

Cheap Dulles Intl to Porto flights in October & November 2024

Find cheap flight options from Dulles Intl to Porto specifically for the months of October and November 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,713,696 searches. Prices were last updated on October 10, 2024.
The lowest fares we've come across on flights traveling from Washington, D.C. to Porto in October and November 2024. For more flight deals, be sure to check back very soon.
This oojo deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/117:15 pmIAD - OPO
1 stop18h 00mTAP AIR PORTUGAL
Tue 11/196:55 amOPO - IAD
1 stop12h 35mTAP AIR PORTUGAL
Deal found 10/9$460
This Mytrip deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2710:35 amIAD - OPO
2 stops23h 40mMultiple Airlines
Wed 12/256:00 amOPO - IAD
1 stop14h 50mMultiple Airlines
Deal found 10/9$467
This British Airways deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2710:55 pmIAD - OPO
1 stop13h 45mBritish Airways
Tue 11/510:45 amOPO - IAD
1 stop14h 00mBritish Airways
Deal found 10/8$480
This Air Canada deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/273:55 pmIAD - OPO
2 stops15h 55mAir Canada
Wed 12/256:00 amOPO - IAD
2 stops20h 21mAir Canada
Deal found 10/9$485
This SWISS deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/58:45 pmIAD - OPO
1 stop33h 30mSWISS
Thu 11/1412:05 pmOPO - IAD
1 stop33h 20mSWISS
Deal found 10/10$488
This KLM deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/56:30 pmIAD - OPO
1 stop11h 20mKLM
Tue 11/126:00 amOPO - IAD
1 stop14h 45mKLM
Deal found 10/9$491
This Delta deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/611:09 amIAD - OPO
2 stops18h 41mDelta
Thu 11/1411:15 amOPO - IAD
1 stop33h 30mDelta
Deal found 10/10$495
This United Airlines deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/188:35 amIAD - OPO
2 stops22h 00mUnited Airlines
Mon 11/2512:25 pmOPO - IAD
2 stops48h 38mUnited Airlines
Deal found 10/9$507
This Lufthansa deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/155:50 pmIAD - OPO
1 stop12h 50mLufthansa
Sat 2/86:00 amOPO - IAD
1 stop14h 50mLufthansa
Deal found 10/9$559

Dulles Intl to Porto 2024 flight deals

Discover exclusive flight deals for travel between Dulles Intl and Porto in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,713,696 searches. Data last updated October 10, 2024.
The lowest fares we've come across on flights traveling from Washington, D.C. to Porto in October and November 2024. For more flight deals, be sure to check back very soon.
This Mytrip deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/105:30 pmIAD - OPO
1 stop18h 30mTAP AIR PORTUGAL
Thu 1/308:00 pmOPO - IAD
1 stop30h 00mTAP AIR PORTUGAL
Deal found 10/9$448
This Mytrip deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2710:35 amIAD - OPO
2 stops23h 40mMultiple Airlines
Wed 12/256:00 amOPO - IAD
1 stop14h 50mMultiple Airlines
Deal found 10/9$467
This British Airways deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2710:55 pmIAD - OPO
1 stop13h 45mBritish Airways
Tue 11/510:45 amOPO - IAD
1 stop14h 00mBritish Airways
Deal found 10/8$480
This Air Canada deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/273:55 pmIAD - OPO
2 stops15h 55mAir Canada
Wed 12/256:00 amOPO - IAD
2 stops20h 21mAir Canada
Deal found 10/9$485
This SWISS deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/279:45 pmIAD - OPO
1 stop16h 45mSWISS
Thu 11/77:30 pmOPO - IAD
1 stop25h 55mSWISS
Deal found 10/8$488
This United Airlines deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/275:50 pmIAD - OPO
1 stop16h 25mUnited Airlines
Fri 12/66:00 amOPO - IAD
1 stop14h 50mUnited Airlines
Deal found 10/8$491
This Delta deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/512:11 pmIAD - OPO
2 stops17h 39mDelta
Thu 11/146:15 amOPO - IAD
1 stop14h 30mDelta
Deal found 10/10$495
This KLM deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/101:36 pmIAD - OPO
2 stops15h 54mKLM
Sat 11/166:30 pmOPO - IAD
1 stop26h 15mKLM
Deal found 10/8$536
This Lufthansa deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/285:50 pmIAD - OPO
1 stop12h 45mLufthansa
Sat 12/76:05 amOPO - IAD
1 stop19h 00mLufthansa
Deal found 10/8$566

Dulles Intl to Porto flights leaving soon

Find last-minute flight options from Dulles Intl to Porto for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,713,696 searches. Data last updated October 10, 2024.
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.
This Orbitz deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/178:45 pmIAD - OPO
1 stop10h 00mIberia
Mon 10/214:35 pmOPO - IAD
1 stop31h 40mIberia
Deal found 10/8$641
This Kiwi.com deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/178:45 pmIAD - OPO
1 stop16h 45mSWISS
Mon 10/218:15 pmOPO - IAD
2 stops25h 00mSWISS
Deal found 10/8$688
This KAYAK deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1710:20 pmIAD - OPO
2 stops19h 25mLufthansa
Mon 10/216:00 amOPO - IAD
2 stops18h 25mLufthansa
Deal found 10/8$740
This Mytrip deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/178:45 pmIAD - OPO
2 stops21h 45mMultiple Airlines
Mon 10/219:55 pmOPO - IAD
3 stops27h 36mMultiple Airlines
Deal found 10/8$849
This Air Canada deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1612:42 pmIAD - OPO
2 stops16h 43mAir Canada
Wed 11/206:00 amOPO - IAD
2 stops32h 46mAir Canada
Deal found 10/10$1,598
This oojo deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/169:50 pmIAD - OPO
1 stop30h 55mTurkish Airlines
Wed 11/2011:00 amOPO - IAD
1 stop37h 30mTurkish Airlines
Deal found 10/10$2,886
This Arangrant deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Arangrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/198:20 pmIAD - OPO
1 stop17h 40mTAP AIR PORTUGAL
Sat 11/236:55 amOPO - IAD
1 stop13h 05mTAP AIR PORTUGAL
Deal found 10/9$4,986
This Brussels Airlines deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Brussels Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/165:30 pmIAD - OPO
2 stops37h 35mBrussels Airlines
Wed 11/2012:55 pmOPO - IAD
2 stops31h 00mBrussels Airlines
Deal found 10/10$6,588

One-way flights to Porto from Dulles Intl

Search for one-way flight options from Dulles Intl to Porto. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,713,696 searches. Data last updated October 10, 2024.
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.
This Kiwi.com deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/226:50 pmIAD - OPO
3 stops23h 10mMultiple Airlines
Deal found 10/10$342
This Kiwi.com deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/225:00 pmIAD - OPO
1 stop12h 55mTAP AIR PORTUGAL
Deal found 10/10$359
This Justfly.com deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/138:29 amIAD - OPO
2 stops21h 46mAir Canada
Deal found 10/9$407
This United Airlines deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/206:30 amIAD - OPO
2 stops23h 50mUnited Airlines
Deal found 10/10$413
This KAYAK deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/203:20 pmIAD - OPO
2 stops27h 00mLufthansa
Deal found 10/10$434
This American Airlines deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/311:49 pmIAD - OPO
2 stops13h 51mAmerican Airlines
Deal found 10/9$435
This Delta deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/219:20 pmIAD - OPO
1 stop13h 10mDelta
Deal found 10/9$881
This FareScan deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FareScan is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/218:30 pmIAD - OPO
1 stop15h 20mRoyal Air Maroc
Deal found 10/10$1,005
This Austrian Airlines deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/215:34 pmIAD - OPO
2 stops58h 51mAustrian Airlines
Deal found 10/9$7,030

Find flights from Dulles Intl to Porto within your budget

Customize your flight search to find flights from Dulles Intl to Porto 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, Cheapflights users made 2,713,696 searches. Data last updated October 10, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$407 - $559

Route

Depart

Return

Price

Washington, D.C. Dulles IntlPorto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Fri 2/28

1 stop14h 30m

Porto

Wed 3/5

1 stop16h 00m

$407

Washington, D.C. Dulles IntlPorto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Wed 11/27

2 stops23h 40m

Porto

Wed 12/25

1 stop14h 50m

$467

Washington, D.C. Dulles IntlPorto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Sun 10/27

1 stop13h 45m

Porto

Tue 11/5

1 stop14h 00m

$480

Washington, D.C. Dulles IntlPorto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Wed 11/27

2 stops15h 55m

Porto

Wed 12/25

2 stops20h 21m

$485

Washington, D.C. Dulles IntlPorto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Tue 11/5

1 stop33h 30m

Porto

Thu 11/14

1 stop33h 20m

$488

Washington, D.C. Dulles IntlPorto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Tue 11/5

1 stop11h 20m

Porto

Tue 11/12

1 stop14h 45m

$491

Washington, D.C. Dulles IntlPorto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Wed 11/6

2 stops18h 41m

Porto

Fri 11/15

1 stop14h 30m

$495

Washington, D.C. Dulles IntlPorto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Tue 12/10

2 stops15h 50m

Porto

Tue 12/17

1 stop19h 20m

$498

Washington, D.C. Dulles IntlPorto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Fri 11/15

1 stop12h 50m

Porto

Sat 2/8

1 stop14h 50m

$559

Flights are sorted by cheapest first

Deals found on 10/9

Best time to book a flight from Dulles Intl to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from Dulles Intl 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 Dulles Intl to Porto

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

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

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Porto. Price data was last updated on October 4, 2024.

To ensure you get the cheapest price possible for a flight from Washington, D.C. Dulles Intl Airport to Porto, you should look to book at least 16 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Porto (average of $513). Flying from Washington, D.C. Dulles Intl Airport to Porto in June is currently the most expensive (average of $985). 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 time of day to fly from IAD to OPO?

Find hourly flight availability from Dulles Intl to Porto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 10, 2024.

It’s typically best to fly out from Washington, D.C. Dulles Intl Airport to Porto in the morning. Doing so could potentially save you 24% on the flight price compared to flying in the afternoon, which is usually more expensive.

Rainfall in Porto by month

Plan your trip to Porto by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Porto ranges from 0.7 - 7.7 inches per month. December is typically the wettest month, when rainfall can reach 7.7 in. July is typically the driest time to visit Porto when rainfall is around 0.7 in.

Temperature in Porto by month

Plan your trip to Porto by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Porto, 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 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

Reviews of airlines servicing Porto

Get insights into the airlines that provide service to Porto. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Porto. Reviews last updated October 10, 2024.
To help decide which airline to fly from Washington, D.C. to Porto, see what other customers have to say about TAP AIR PORTUGAL, Air Canada and SWISS. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good
8,963 reviews

Boarding

8.2

Crew

8.6

Food

7.4

Comfort

7.9

Entertainment

8.0

Overall

8.0

Reviews

1 / 10

The plane had a mechanical error that delayed us by almost an hour. On the positive side the captain kept us all in the know

8.0
Very good
8,963 reviews
8.0
Very good
8,963 reviews

Boarding

8.2

Crew

8.6

Food

7.4

Comfort

7.9

Entertainment

8.0

Overall

8.0

Reviews

1 / 10

The plane had a mechanical error that delayed us by almost an hour. On the positive side the captain kept us all in the know

7.8
Good
1,357 reviews
8.0
Very good
8,963 reviews

Boarding

8.2

Crew

8.6

Food

7.4

Comfort

7.9

Entertainment

8.0

Overall

8.0

Reviews

1 / 10

The plane had a mechanical error that delayed us by almost an hour. On the positive side the captain kept us all in the know

7.7
Good
847 reviews
8.0
Very good
8,963 reviews

Boarding

8.2

Crew

8.6

Food

7.4

Comfort

7.9

Entertainment

8.0

Overall

8.0

Reviews

1 / 10

The plane had a mechanical error that delayed us by almost an hour. On the positive side the captain kept us all in the know

7.6
Good
1,671 reviews
8.0
Very good
8,963 reviews

Boarding

8.2

Crew

8.6

Food

7.4

Comfort

7.9

Entertainment

8.0

Overall

8.0

Reviews

1 / 10

The plane had a mechanical error that delayed us by almost an hour. On the positive side the captain kept us all in the know

7.4
Good
3,842 reviews
8.0
Very good
8,963 reviews

Boarding

8.2

Crew

8.6

Food

7.4

Comfort

7.9

Entertainment

8.0

Overall

8.0

Reviews

1 / 10

The plane had a mechanical error that delayed us by almost an hour. On the positive side the captain kept us all in the know

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Porto. 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 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 10 different airlines.

  • 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 TAP AIR PORTUGAL for just $407, but on average you can expect to pay $509.

  • Are there last-minute flights available from Washington, D.C. Dulles Intl Airport to Porto for under $700?

    There are currently 8+ open flights from Washington, D.C. Dulles Intl Airport to Porto within the next 7 days for less than $700.

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

    Currently priced at $407, TAP AIR PORTUGAL will fly you from Washington, D.C. Dulles Intl Airport to Porto and back. In addition to TAP AIR PORTUGAL, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from British Airways and Air Canada - these airlines can fly you to your destination from $480 and $485, respectively. These flights start at 41% lower than the current average price 3 months from now.

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

    $359 is the cheapest one-way deal found within the past few days, from TAP AIR PORTUGAL. You may also be able to find cheap deals on Air Canada and United Airlines, with prices starting from $407 and $413, respectively.

  • 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.

  • Where are the most common layover locations when flying from Washington, D.C. Dulles Intl Airport to Porto?

  • What are some popular things to do or see while on a layover in Lisbon?

    Most Lisbon visitors opt to spend their time experiencing Chiado, Praça do Príncipe Real, and Centro Cultural de Belém. Travelers on a layover in Lisbon can visit Chiado, Praça do Príncipe Real, and Centro Cultural de Belém, by traveling 4.5 mi, 4.2 mi, and 6.9 mi, respectively after landing at Lisbon Humberto Delgado. Travelers can book a car rental at Lisbon Humberto Delgado for about $18 per day to make their sightseeing more efficient.

  • Where are the least popular layover locations for Washington, D.C. Dulles Intl Airport to Porto flights?