$426 Cheap Flights from Washington (DCA) to Iguazu (IGR)

View $426 flight on Wed, Mar 25, 2026Opens in a new window

Popular airlines from Ronald Reagan Washington National Airport (DCA) to Iguazu (IGR-Cataratas del Iguazu Intl.)

Cheap Flights from Washington to Iguazu (DCA-IGR)

Prices were available within the past 7 days and start at $426 for one-way flights and $749 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, May 4 - Tue, May 19
DCA
Washington
IGR
Puerto Iguazú
$749 Roundtrip, found 7 hours ago
$749
Roundtrip
found 7 hours ago
Select United flight, departing Mon, May 4 from Washington to Puerto Iguazú, returning Tue, May 19, priced at $749 found 7 hours ago
United
Mon, Apr 13 - Tue, Apr 21
DCA
Washington
IGR
Puerto Iguazú
$784 Roundtrip, found 20 hours ago
$784
Roundtrip
found 20 hours ago
Select United flight, departing Mon, Apr 13 from Washington to Puerto Iguazú, returning Tue, Apr 21, priced at $784 found 20 hours ago
United
Wed, Apr 15 - Wed, May 6
DCA
Washington
IGR
Puerto Iguazú
$900 Roundtrip, found 7 hours ago
$900
Roundtrip
found 7 hours ago
Select United flight, departing Wed, Apr 15 from Washington to Puerto Iguazú, returning Wed, May 6, priced at $900 found 7 hours ago
United
Mon, Apr 13 - Wed, Apr 22
DCA
Washington
IGR
Puerto Iguazú
$941 Roundtrip, found 7 hours ago
$941
Roundtrip
found 7 hours ago
Select United flight, departing Mon, Apr 13 from Washington to Puerto Iguazú, returning Wed, Apr 22, priced at $941 found 7 hours ago
United
Tue, May 5 - Tue, May 19
DCA
Washington
IGR
Puerto Iguazú
$952 Roundtrip, found 7 hours ago
$952
Roundtrip
found 7 hours ago
Select United flight, departing Tue, May 5 from Washington to Puerto Iguazú, returning Tue, May 19, priced at $952 found 7 hours ago
United
Sun, May 3 - Tue, May 19
DCA
Washington
IGR
Puerto Iguazú
$987 Roundtrip, found 7 hours ago
$987
Roundtrip
found 7 hours ago
Select United flight, departing Sun, May 3 from Washington to Puerto Iguazú, returning Tue, May 19, priced at $987 found 7 hours ago
United
Tue, Apr 28 - Tue, May 12
DCA
Washington
IGR
Puerto Iguazú
$1,103 Roundtrip, found 7 hours ago
$1,103
Roundtrip
found 7 hours ago
Select United flight, departing Tue, Apr 28 from Washington to Puerto Iguazú, returning Tue, May 12, priced at $1,103 found 7 hours ago
United
Tue, Apr 21 - Wed, May 6
DCA
Washington
IGR
Puerto Iguazú
$1,138 Roundtrip, found 7 hours ago
$1,138
Roundtrip
found 7 hours ago
Select United flight, departing Tue, Apr 21 from Washington to Puerto Iguazú, returning Wed, May 6, priced at $1,138 found 7 hours ago
Delta
Sat, May 16 - Mon, Jun 1
DCA
Washington
IGR
Puerto Iguazú
$1,334 Roundtrip, found 7 hours ago
$1,334
Roundtrip
found 7 hours ago
Select Delta flight, departing Sat, May 16 from Washington to Puerto Iguazú, returning Mon, Jun 1, priced at $1,334 found 7 hours ago
Air Canada
Sun, Apr 12 - Sun, Apr 19
DCA
Washington
IGR
Puerto Iguazú
$1,624 Roundtrip, found 20 hours ago
$1,624
Roundtrip
found 20 hours ago
Select Air Canada flight, departing Sun, Apr 12 from Washington to Puerto Iguazú, returning Sun, Apr 19, priced at $1,624 found 20 hours ago

Frequently asked questions

How much does a flight from Ronald Reagan Washington National Airport (DCA) to Cataratas del Iguazu Intl. Airport (IGR) cost?
Grab a cheap one-way flight from $426 or cheap return flight from $749 from Ronald Reagan Washington National Airport (DCA) to Cataratas del Iguazu Intl. Airport (IGR) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Ronald Reagan Washington National Airport (DCA) to Cataratas del Iguazu Intl. Airport (IGR)?
May is the most affordable month to fly from DCA to IGR. Planning your trip for the off-season is often the key to finding better fares.
What is the cheapest airline that flies from Ronald Reagan Washington National Airport (DCA) to Cataratas del Iguazu Intl. Airport (IGR)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest DCA to IGR flight.
How many flights per day from Ronald Reagan Washington National Airport (DCA) to Cataratas del Iguazu Intl. Airport (IGR)?
Nonstop flights from Ronald Reagan Washington National Airport (DCA) to Cataratas del Iguazu Intl. Airport (IGR) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel details and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from DCA 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 depending on various factors, including the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Ronald Reagan Washington National Airport (DCA) to Cataratas del Iguazu Intl. Airport (IGR)?
Choose a flight from Ronald Reagan Washington National Airport (DCA) to Cataratas del Iguazu Intl. Airport (IGR) that takes off before 3 PM to reduce the likelihood of delays. Departures after this time are on average 22% more likely to be canceled.**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 Ronald Reagan Washington National Airport (DCA) to Cataratas del Iguazu Intl. Airport (IGR) last-minute?
Booking your ticket from DCA to IGR right before your getaway is generally more expensive. But if there's some wiggle room with your itinerary, you could land a cheap last-minute fare.
Is it cheaper to book a DCA to IGR flight and hotel package?
Compared with arranging flights and hotels separately, booking a DCA to IGR flight and hotel package with Expedia could lead to significant savings. Better yet, having everything in one place will take the hassle out of travel planning. Just secure your flights and choose from our wide range of stays, then customize your trip with other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from Ronald Reagan Washington National Airport (DCA) to Cataratas del Iguazu Intl. Airport (IGR)?
Typically, it's possible to cancel or reschedule your DCA to IGR flight. However, for bookings made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Origin airport
Ronald Reagan Washington National
Destination airport
Cataratas del Iguazu Intl.
Roundtrip price
$749
Distance
4694 mi

Book with confidence

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 May. 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 $426 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.

 

Washington to Iguazu Flights

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*Available to One Key members.