Cheap flights from Washington, D.C. Dulles Intl Airport to South America from $139

In general, April is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to South America. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $507. If you aren’t able to travel during the month of April, then book flights to South America from Washington, D.C. Dulles Intl Airport during January instead. Flights to South America in January, while not as cheap as those in April, still average around $539.

Fly from Washington, D.C. Dulles Intl to Bogotá El Dorado for the best Washington, D.C. Dulles Intl - South America flight prices

You are more likely to see cheaper flights to South America from Washington, D.C. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to South America for around $560 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to South America from Washington, D.C. Dulles Intl Airport for as low as $501 on momondo.

There are 3 cabin classes available to choose from on Washington, D.C. Dulles Intl Airport to South America flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Copa Airlines, Frontier, and American Airlines are the most popular carriers operating from Washington, D.C. Dulles Intl to South America

Avianca, Copa Airlines and LATAM Airlines are the top three most popular airlines that fly to South America from Washington, D.C. Dulles Intl Airport according to our data. Avianca is the first choice among our users, with 45% of people opting to fly with this airline when traveling to South America. Keep in mind that there are 7 different airlines that fly to South America on a routine basis, so you have a few additional options to choose from.

Historically, on average around 16% of flights between Washington, D.C. and South America have experienced a delay on any given week. The average delay length over the past 12 months has been 131 minutes.

Generally, flights departing at night tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

According to our data, Avianca have had the least number of delays on this route over the last 12 months; with about 16% of their flights experiencing any sort of delay.

As of November 2026, 7 flights take off from Washington, D.C. Dulles Intl Airport and land in South America each day. The most common flight departure time for this route is 3:00PM, with 50% of daily flights taking off in the afternoon.

As of November 2026, there are 52 flights per week flying from Washington, D.C. Dulles Intl Airport to South America. The most common day of the week flights depart is Mon, with 15% of flights taking off on this day.