$735 Cheap Flights from Washington (IAD) to Iguazu (IGR)

View $735 flight on Wed, Aug 6, 2025Opens in a new window

Popular airlines from Washington Dulles Intl. Airport (IAD) to Iguazu (IGR-Cataratas del Iguazu Intl.)

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Cheap Flights from Washington to Iguazu (IAD-IGR)

Prices were available within the past 7 days and start at $735 for one-way flights and $926 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

avianca
Fri, Oct 17 - Tue, Oct 21
IAD
Washington
IGR
Puerto Iguazú
$926 Roundtrip, found 5 days ago
$926
Roundtrip
found 5 days ago
Select avianca flight, departing Fri, Oct 17 from Washington to Puerto Iguazú, returning Tue, Oct 21, priced at $926 found 5 days ago
avianca
Sun, Oct 12 - Tue, Oct 21
IAD
Washington
IGR
Puerto Iguazú
$940 Roundtrip, found 5 days ago
$940
Roundtrip
found 5 days ago
Select avianca flight, departing Sun, Oct 12 from Washington to Puerto Iguazú, returning Tue, Oct 21, priced at $940 found 5 days ago
avianca
Sun, Oct 12 - Thu, Oct 16
IAD
Washington
IGR
Puerto Iguazú
$969 Roundtrip, found 5 days ago
$969
Roundtrip
found 5 days ago
Select avianca flight, departing Sun, Oct 12 from Washington to Puerto Iguazú, returning Thu, Oct 16, priced at $969 found 5 days ago
avianca
Fri, Oct 3 - Thu, Oct 16
IAD
Washington
IGR
Puerto Iguazú
$973 Roundtrip, found 3 days ago
$973
Roundtrip
found 3 days ago
Select avianca flight, departing Fri, Oct 3 from Washington to Puerto Iguazú, returning Thu, Oct 16, priced at $973 found 3 days ago
avianca
Mon, Sep 29 - Thu, Oct 16
IAD
Washington
IGR
Puerto Iguazú
$1,066 Roundtrip, found 3 days ago
$1,066
Roundtrip
found 3 days ago
Select avianca flight, departing Mon, Sep 29 from Washington to Puerto Iguazú, returning Thu, Oct 16, priced at $1,066 found 3 days ago
avianca
Fri, Oct 3 - Thu, Oct 16
IAD
Washington
IGR
Puerto Iguazú
$1,071 Roundtrip, found 4 days ago
$1,071
Roundtrip
found 4 days ago
Select avianca flight, departing Fri, Oct 3 from Washington to Puerto Iguazú, returning Thu, Oct 16, priced at $1,071 found 4 days ago
avianca
Fri, Oct 17 - Mon, Oct 20
IAD
Washington
IGR
Puerto Iguazú
$1,077 Roundtrip, found 5 days ago
$1,077
Roundtrip
found 5 days ago
Select avianca flight, departing Fri, Oct 17 from Washington to Puerto Iguazú, returning Mon, Oct 20, priced at $1,077 found 5 days ago
avianca
Wed, Oct 1 - Thu, Oct 16
IAD
Washington
IGR
Puerto Iguazú
$1,081 Roundtrip, found 3 days ago
$1,081
Roundtrip
found 3 days ago
Select avianca flight, departing Wed, Oct 1 from Washington to Puerto Iguazú, returning Thu, Oct 16, priced at $1,081 found 3 days ago
United
Thu, Sep 11 - Tue, Sep 23
IAD
Washington
IGR
Puerto Iguazú
$1,094 Roundtrip, found 4 days ago
$1,094
Roundtrip
found 4 days ago
Select United flight, departing Thu, Sep 11 from Washington to Puerto Iguazú, returning Tue, Sep 23, priced at $1,094 found 4 days ago
Copa
Thu, Oct 2 - Thu, Oct 16
IAD
Washington
IGR
Puerto Iguazú
$1,138 Roundtrip, found 3 days ago
$1,138
Roundtrip
found 3 days ago
Select Copa flight, departing Thu, Oct 2 from Washington to Puerto Iguazú, returning Thu, Oct 16, priced at $1,138 found 3 days ago
Flights from Washington (IAD) to Iguazu (IGR)
Origin airport
Washington Dulles Intl.
Destination airport
Cataratas del Iguazu Intl.
Roundtrip price
$926
Distance
4709 mi

Washington to Iguazu Flights

The cheapest times to fly from Washington to Iguazu

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Washington to Iguazu are during the month of October. You can find some of the cheapest flights from Washington to Iguazu with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Washington to Iguazu

Sunday is one of the best days to book for cheap flights from Washington to Iguazu: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Washington to Iguazu

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Washington to Iguazu in 2025. You can also book with separate airlines for your outbound and return journeys, from $735 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Washington to Iguazu flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Washington to Iguazu airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Washington Dulles Intl. Airport (IAD) to Cataratas del Iguazu Intl. Airport (IGR) cost?
Discover the latest flight deals from IAD to IGR by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from IAD to IGR?
The cheapest flights from IAD to IGR are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from IAD to IGR?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from IAD to IGR. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Washington Dulles Intl. Airport (IAD) to Cataratas del Iguazu Intl. Airport (IGR)?
There are no daily direct flights departing from Washington Dulles Intl. Airport (IAD) to Cataratas del Iguazu Intl. Airport (IGR). But you can opt for flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be cruising above the clouds before you know it.
What day of the week has the most flights from IAD to IGR?
Friday is generally the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can change based on a range of factors, such as the season and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Washington Dulles Intl. Airport (IAD) to Cataratas del Iguazu Intl. Airport (IGR)?
To land at Cataratas del Iguazu Intl. Airport (IGR) without delays, book a flight that leaves Washington Dulles Intl. Airport (IAD) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Washington Dulles Intl. Airport (IAD) to Cataratas del Iguazu Intl. Airport (IGR) last-minute?
Holding off until right before your break to book a ticket from IAD to IGR often results in higher prices. While it's possible to find some last-minute discounts, they aren't always guaranteed. Keep your travel schedule open for the best chance of landing a bargain.
Is it cheaper to book an IAD to IGR flight and hotel package?
Compared with arranging hotels and flights separately, booking an IAD to IGR flight and hotel package with Expedia could lead to significant savings. Better still, having everything in one easy place takes the hassle out of planning your trip. Simply pick your flights and choose from our extensive range of hotels, then tailor your trip with extras like car rentals and activities.
Can I cancel or change the date of my flight from Washington Dulles Intl. Airport (IAD) to Cataratas del Iguazu Intl. Airport (IGR)?
If you reserved your IAD to IGR flight within the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the type of fare you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more information.

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*Available to One Key members.