₹42,624 Cheap Flights from Porto (OPO) to Washington (IAD)

View ₹42,624 flight on Wed, 18 Feb 2026Opens in a new window

Popular airlines from Porto Airport (OPO) to Washington Dulles International Airport (IAD)

  • notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
  • deals illustration

    Book smarter

    Save up to 25% on select hotels after you book a flight*
  • trophy illustration

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Porto (OPO) to Washington (IAD)

Prices were available within the past 7 days and start at ₹42,624 for one-way flights and ₹51,556 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, 3 Dec - Sun, 7 Dec
OPO
Porto
IAD
Washington
₹51,556 Return, found 1 day ago
₹51,556
Return
found 1 day ago
Select United flight, departing Wed, 3 Dec from Porto to Washington, returning Sun, 7 Dec, priced at ₹51,556 found 1 day ago
Lufthansa
Wed, 3 Dec - Sun, 7 Dec
OPO
Porto
IAD
Washington
₹53,354 Return, found 1 day ago
₹53,354
Return
found 1 day ago
Select Lufthansa flight, departing Wed, 3 Dec from Porto to Washington, returning Sun, 7 Dec, priced at ₹53,354 found 1 day ago
United
Wed, 3 Dec - Sun, 7 Dec
OPO
Porto
IAD
Washington
₹53,416 Return, found 1 day ago
₹53,416
Return
found 1 day ago
Select United flight, departing Wed, 3 Dec from Porto to Washington, returning Sun, 7 Dec, priced at ₹53,416 found 1 day ago
United
Wed, 3 Dec - Sun, 7 Dec
OPO
Porto
IAD
Washington
₹54,169 Return, found 1 day ago
₹54,169
Return
found 1 day ago
Select United flight, departing Wed, 3 Dec from Porto to Washington, returning Sun, 7 Dec, priced at ₹54,169 found 1 day ago
Swiss International Air Lines
Wed, 3 Dec - Sun, 7 Dec
OPO
Porto
IAD
Washington
₹54,188 Return, found 1 day ago
₹54,188
Return
found 1 day ago
Select Swiss International Air Lines flight, departing Wed, 3 Dec from Porto to Washington, returning Sun, 7 Dec, priced at ₹54,188 found 1 day ago
Swiss International Air Lines
Wed, 3 Dec - Sun, 7 Dec
OPO
Porto
IAD
Washington
₹54,685 Return, found 1 day ago
₹54,685
Return
found 1 day ago
Select Swiss International Air Lines flight, departing Wed, 3 Dec from Porto to Washington, returning Sun, 7 Dec, priced at ₹54,685 found 1 day ago
Lufthansa
Wed, 3 Dec - Sun, 7 Dec
OPO
Porto
IAD
Washington
₹55,058 Return, found 1 day ago
₹55,058
Return
found 1 day ago
Select Lufthansa flight, departing Wed, 3 Dec from Porto to Washington, returning Sun, 7 Dec, priced at ₹55,058 found 1 day ago
Lufthansa
Wed, 3 Dec - Sun, 7 Dec
OPO
Porto
IAD
Washington
₹55,214 Return, found 1 day ago
₹55,214
Return
found 1 day ago
Select Lufthansa flight, departing Wed, 3 Dec from Porto to Washington, returning Sun, 7 Dec, priced at ₹55,214 found 1 day ago
KLM
Wed, 3 Dec - Sun, 7 Dec
OPO
Porto
IAD
Washington
₹57,528 Return, found 1 day ago
₹57,528
Return
found 1 day ago
Select KLM flight, departing Wed, 3 Dec from Porto to Washington, returning Sun, 7 Dec, priced at ₹57,528 found 1 day ago
Iberia
Tue, 11 Nov - Tue, 13 Jan
OPO
Porto
IAD
Washington
₹72,532 Return, found 6 days ago
₹72,532
Return
found 6 days ago
Select Iberia flight, departing Tue, 11 Nov from Porto to Washington, returning Tue, 13 Jan, priced at ₹72,532 found 6 days ago

Find the cheapest month to fly from Porto (OPO) to Washington (IAD)

February is typically the cheapest month to fly

From ₹40,232 - ₹66,883 per traveller.

Frequently asked questions

How much is a flight from Porto Airport to Dulles Intl. Airport?
Round-trip tickets between Porto Airport and Dulles Intl. Airport start from ₹51,556. This price is based on fares offered within the last 7 days on Expedia for flights departing within the next year — book ASAP to avoid missing out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Dr. Francisco de Sa Carneiro Airport (OPO) to Dulles Intl. Airport?
Each air carrier has its own terms and conditions. If you do decide to cancel, follow the easy instructions on our Customer Service Portal.
How do I find cheap flights from Dr. Francisco de Sa Carneiro Airport (OPO) to Dulles Intl. Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for OPO to IAD flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Dr. Francisco de Sa Carneiro Airport (OPO) to IAD?
The distance is around 5,700 kilometres. Sleep mask? Check. Toothbrush? Check. We suggest you pack all the essentials for this long-haul Maia to Chantilly flight.
Which airlines fly direct from Dr. Francisco de Sa Carneiro Airport (OPO) to Washington Dulles Intl. Airport (IAD)?
Flying directly between OPO and Washington Dulles Intl. Airport (IAD) isn't possible at present. However, you'll still be able to find a flight to Chantilly with at least one stop.
Are Dr. Francisco de Sa Carneiro Airport (OPO) to IAD flight tickets cheaper when they're purchased at the last minute?
Late planners can sometimes score a bargain, with some super cheap airfares from Dr. Francisco de Sa Carneiro Airport (OPO) to Dulles Intl. Airport arising a few weeks before the date of departure. If you'd rather book ahead, Expedia compares and updates the best flight deals continuously — as early as 12 months in advance in some cases. It depends on the carrier though, as not every airline advertises prices that far in advance.

Travel information

Origin airport
Dr. Francisco de Sa Carneiro
Destination airport
Washington Dulles Intl.
Airlines serving
Iberia, KLM, Lufthansa, Swiss International Air Lines, Turkish Airlines, United
Return price
₹51,556
Distance
5663 km

Book with confidence

Porto to Chantilly Flights

Sometimes you just need to get out of town or maybe you’re looking for a change of scenery. Regardless of the reason, a flight from Porto to Chantilly will do just the trick! Go on, plan to see all the famous landmarks and eat your weight in the local cuisine. Your trip is beckoning, so answer the call by packing your suitcase and filling your travel itinerary with exploring Chantilly.

Whether you’re flying for business or jet-setting on your personal time, you’ve come to the right place. Here at Expedia.com, we’ll pair you up with OPO to IAD flights that won’t make your bank account wince. Ready to temporarily leave behind Porto for new horizons? Browse through our cheap airfare, and filter by flight times and dates until you find just what you had in mind. From flights without layovers to ones that arrive early in the morning, you’ll come across plane tickets that suit your travel preferences. You can even bundle your flight to IAD with hotels and car rentals to score even bigger savings.

All set to hit the clouds? Book your travel arrangements with us today and have left-over money to put toward your travel outings and adventures.

Porto to Chantilly Flights

Explore a world of travel with Expedia

Washington Airports

Baltimore

Washington

*Available to Expedia members.