$116 Find Cheap Flights from Washington Dulles Airport to South America

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to South America departing on 4/22. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from Dulles Intl to South America

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Lima
Lima1 stop$335
Bogotá
Bogotá1 stop$294
Buenos Aires
Buenos Aires1 stop$606
Sao Paulo
Sao Paulononstop$478
Rio de Janeiro
Rio de Janeiro1 stop$544
Santiago
Santiago2 stops$562
Cartagena
Cartagena1 stop$307
Quito
Quito1 stop$349
Guayaquil
Guayaquil1 stop$318
Cali
Cali1 stop$275
Cusco
Cusco2 stops$442
Georgetown
Georgetown1 stop$470
Pereira
Pereira1 stop$355
Montevideo
Montevideo1 stop$594
Barranquilla
Barranquilla1 stop$275
Santa Marta
Santa Marta1 stop$314
Asuncion
Asuncion2 stops$822
Lima
Lima1 stop$335
Bogotá
Bogotá1 stop$294
Buenos Aires
Buenos Aires1 stop$606
Sao Paulo
Sao Paulononstop$478
Rio de Janeiro
Rio de Janeiro1 stop$544
Santiago
Santiago2 stops$562
Cartagena
Cartagena1 stop$307
Quito
Quito1 stop$349
Guayaquil
Guayaquil1 stop$318
Cali
Cali1 stop$275
Cusco
Cusco2 stops$442
Georgetown
Georgetown1 stop$470
Pereira
Pereira1 stop$355
Montevideo
Montevideo1 stop$594
Barranquilla
Barranquilla1 stop$275
Santa Marta
Santa Marta1 stop$314
Asuncion
Asuncion2 stops$822

Book Cheap Dulles Intl to South America Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to South America that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Dulles Intl to South America

Tue, Mar 10 - Thu, Mar 12
Avianca Logo
4:00 am - 12:55 pm
IAD
-
MDE
9h 55m
1 stop
Avianca Logo
4:40 pm - 5:25 am
MDE
-
IAD
11h 45m
2 stops
$281Avianca
Wed, May 20 - Wed, May 27
Avianca Logo
4:10 am - 12:00 pm
IAD
-
BOG
8h 50m
1 stop
Avianca Logo
1:40 pm - 2:45 am
BOG
-
IAD
12h 05m
1 stop
$294Avianca
Thu, Apr 9 - Wed, Apr 15
Copa Airlines Logo
4:33 pm - 8:15 am
IAD
-
MDE
16h 42m
1 stop
Copa Airlines Logo
10:35 am - 4:22 am
MDE
-
IAD
16h 47m
1 stop
$295Copa Airlines
Thu, Mar 19 - Mon, Mar 30
Copa Airlines Logo
4:35 pm - 9:25 am
IAD
-
BOG
17h 50m
1 stop
Copa Airlines Logo
6:17 pm - 4:13 am
BOG
-
IAD
8h 56m
1 stop
$295Copa Airlines
Tue, Mar 3 - Mon, Mar 9
Avianca Logo
3:00 am - 12:55 pm
IAD
-
MDE
9h 55m
1 stop
Avianca Logo
2:10 pm - 2:40 am
MDE
-
IAD
11h 30m
1 stop
$296Avianca
Sun, Mar 8 - Thu, Mar 12
United Airlines Logo
6:00 am - 9:05 pm
IAD
-
MDE
16h 05m
1 stop
United Airlines Logo
9:45 am - 11:51 pm
MDE
-
IAD
13h 06m
1 stop
$307United Airlines
Sun, Apr 5 - Sun, Apr 12
United Airlines Logo
6:00 am - 11:25 pm
IAD
-
UIO
18h 25m
1 stop
United Airlines Logo
7:25 am - 11:59 pm
UIO
-
IAD
15h 34m
1 stop
$356United Airlines
Tue, Mar 17 - Tue, Apr 7
Delta Logo
10:06 am - 5:40 am
IAD
-
GRU
18h 34m
1 stop
Delta Logo
9:30 pm - 12:27 am
GRU
-
IAD
27h 57m
2 stops
$503Delta
Wed, Mar 11 - Wed, Mar 18
LATAM Airlines Logo
1:19 pm - 9:25 am
IAD
-
SDU
19h 06m
2 stops
LATAM Airlines Logo
8:05 pm - 12:39 pm
SDU
-
IAD
17h 34m
2 stops
$603LATAM Airlines
Wed, May 6 - Sun, May 17
LATAM Airlines Logo
6:50 pm - 2:00 pm
IAD
-
SDU
18h 10m
2 stops
LATAM Airlines Logo
5:45 pm - 12:18 pm
SDU
-
IAD
19h 33m
2 stops
$608LATAM Airlines
Booking Insights

KAYAK's insights & trends for Dulles Intl to South America flights

Get data-powered insights and trends into flights from Dulles Intl to South America to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Washington, D.C. Dulles Intl Airport to South America flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to South America from Washington, D.C. Dulles Intl Airport found in the last 72 hours was to Bogotá, at $279 round-trip. The most popular route is from Washington, D.C. Dulles Intl Airport (IAD) to Bogotá (BOG), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $279.

Can I save money by flying with a layover from Washington, D.C. Dulles Intl Airport to South America?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $600, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to South America?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to South America, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Washington, D.C. Dulles Intl Airport to South America is September, when tickets cost $421 (return) on average. On the other hand, the most expensive months are December and July, when the average cost of round-trip tickets is $764 and $555 respectively.

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to South America?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to South America, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Washington, D.C. Dulles Intl Airport to South America, you should book around 3 weeks before departure, which saves you about 21% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flight$116
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly with an average 50% increase in price.
Flight from Washington Dulles Airport to Medellín

FAQs - booking South America flights

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to South America?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington Dulles Airport to South America.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to South America?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Washington Dulles Airport to South America is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington Dulles Airport to South America?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Washington Dulles Airport to South America with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport to South America?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Washington Dulles Airport to South America up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from Dulles Intl to South America

 
Need help choosing which airline to fly with from Dulles Intl to South America? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8227 reviews
7.9Comfort
7.8Entertainment
8.5Crew
8.1Boarding
7.2Food
Airline reviews

Flight crew issues delayed my flight by 2 1/2 hours. Causing me to miss my connection.

2.0 MediocreCason, Feb 2026
EWR - ATL
Read more Delta reviews

Flight crew issues delayed my flight by 2 1/2 hours. Causing me to miss my connection.

The staff on board and gate was nice - a welcome change from the usual. We also arrived early, which was a great benefit, given that it takes 30 minutes plus to get bags at SRQ.

The staff was frielndly. The plane was terrible, it was too small and should be decommissioned. There were no back seat screens at all. The only beverages we had a choice from was coffee, tea or water. The only bathroom in the back was behind the flight attendant's jump seat and wasn't working. And I literally felt like I was sitting on top of the guy next to me. It was terribly hot in the plane and we had to sit on the tarmac in Chicago for 1/2 hour due to congestion in Mpls. Wouldn't they have know that before they even boarded us so that we could have sat in comfort in the terminal?

Never got on it. Was re-routed through Detroit and am still in airports 12 hours later waiting for my connecting plane to arrive.

Delta has too many delays now days. It is 1:06 am now. I was supposed to land in Norfolk at 10:30 pm. I got re-booked through Detroit and I’m still in Detroit. I hope to be landed in Norfolk by 3am. I’ve been in airports for 12 hours as of right now. There is a weather delay now but most delays lately have been maintenance.

Very Very late. Subsequent flights left an hour before ours

This is my worse experience with Delta. My colleagues and I were traveling to ICT for work. Usually we connect in Dallas, but this year we decided to book with Delta and connect in Atlanta. We were excited to fly with Delta because we hear great things and Delta is one of my top choices when choosing an airline for travel. On the connecting flights to and from Wichita/Atlanta - it felt hot and uncomfortable on the plane. The plane to ICT was smaller and older and did not have any wi-fi or entertainment. The most terrible experience was at boarding in Atlanta both times traveling to Wichita and then back to Tampa. First on our flight from ATL to ICT - the attendant scanning our boarding pass made us go back to the line when we went up to scan our passes to wait. After a few minutes, she allowed us to come back up to scan but then she asked what boarding zone we were. We told her zone 5, and since we were standing on the wrong side of the small rope partition, she made us go back to stand on the right side. There was another gentleman that came up to board and scan his pass, and she mentioned he was also on the wrong side but she let him go through. Our group had to walk back and forth for no reason, causing an unnecessary delay to board the plane. We have never experienced anything like this, especially when the boarding area was completely empty and everyone already boarded since boarding was earlier than the original boarding time. On our flight from ATL to TPA, the attendants scanning our boarding passes had us scan our passes twice, not explaining to us what was going on. They automatically started tagging our carry on bags and did not explain to us or tell us what was going on and why this was happening. Obviously we knew our bags were being forced to check in but with no reason. There was no announcement or mention and I have never had anyone force me to check in my bag before boarding the plane. We assumed the overhead bins were full but when we boarded the plane, there was a lot of empty bins and a lot of spaces to put our bags. We all were disappointed and frustrated with Delta and will be hesitant to fly Delta again or anytime soon.

Boarding and crew were fantastic, but I paid for a window seat with no window. Seat 11D on a CRJ-900 apparently does not have a window. Lesson learned.

Terrible. Four hour delay because Delta could not find crew to man the aircraft. Terrible communication. Terrible insight into the delays. One of the worst flight experiences I’ve had.

It was good. The leg room was not great in Row 1.

Deleted flight made me loose my connection flight now stuck in Atlanta for a day

Good check in process Poor information on payments at Lima airport

Apart of Sky miles delta. And they go everywhere in Brazil

We traveled with two young children, and it was not possible for our family to be seated together. No one offered help or assistance to organize seating so we could sit with our kids. In the end, we managed to find two seats in Economy so I could at least sit with one of them, even though I had originally paid for Comfort+. In summary, I had to downgrade my seat just to be able to sit with one of my children, which was very disappointing

I booked a flight through Kayak to Brazil I have traveled to Brazil several times before Kayak Delta or LATAM never mentioned during the booking or in the pre flight process that the visa requirements to visit Brazil have changed earlier this year. I was unaware of this change and as such never got a visa and was unable to fly from JFK to Sao Paulo Add to this that Delta allowed me to fly from Boston to JFK which they should not have as I didn’t have a visa. It has been a terrible experience and a huge loss of money

Good flight, boarding ok and crew very nice. Flight was not full so I was able to be very comfortable. Blanket and pillow provided with was good as it was very cold during the flight . Food was very good(small snack sandwich and an excellent piece of orange cake). Overall good flight, no complaints.

Latam may be the worst airline in the world, far worse than even the lowest of low cost airlines in the USA. I wasted hours trying to PAY THEM TO CHECK A BAG! Then they misled me at the terminal, sent me through the wrong security line, the list goes on and on... Just absolutely terrible in every way. Avoid at all costs.

I’m entitled to a refund per LATAM due to the mid flight itinerary change and being stuck in São Paulo for 24 hours and needing to get a hotel. The airline was dismissive and of no help.

The flight was late. Please do not delay next time.

I couldn't travel, now I can't get a refund and to change the date I have to pay an absurd fine.

Horrible. No TV or any type of entertainment on board. Passwnger listening to/watching stuff on their own phone with no headphones making it noise and uncomfortable for everyone else, little/tiny food portions, old seats, useless wifi (cant access anything). Horrible exlerience especially it was a lomg distance flight with kids.

There should be a warning regarding the quality of the aircraft on the website as we reserve the tickets. There was no TV or any type of screen onboard. The wifi they offer is good for nothing. Traveling 9 hours straight with kids and no type of entetainment was horrible. I wish I had been informed prior so I could buy a ticket with another airline. The food was a joke too. A very tiny portion per passenger. They also charged $100 per checked bag. With United I used to pay $60. So, fair to say that I wont be flying Copa anymore. Their aircraft was super old, outdated, no entertainment, with nearly no onboard food.

Very strict carry on rules meant most of the plane had to gate check their luggage. As is often the case had things that were broken because of this, but I appreciated not being charged to gate check. Otherwise good flight and great crew once on the plane

I liked the meatloaf the chicken was awful but the plane was on time and got there and the staff was nice.

They were super friendly bumped me up to exit row free of charge, All flight legs were on time

Boarding was quick & efficient; they gave boarding groups due priority; staff & air crew were very cordial and helpful, pleasant flight.

horrible service, food was an embarrassment, no charging for cellphones, stay away

Very happy with my flight. I would definitely recommend it.

Did upgrade, travel in business it was great (more room I could sleep)

Had to go through security at the gate again. Had to take off shoes and go through the whole thing again even though we have global entry. They asked us to check in items bought at duty free during our layover and since we checked our luggage at the original departure airport, they forced us to check in a small backpack. None of this ever happened with other airlines. In addition, no vegetarian food option and no snacks during a 7 hr flight. Luggage limits are unusually small. This is unacceptable. Will NEVER fly Copa again and will tell friends and family to avoid this airline.

Wifi took a while to kick in and we had a maintenance issue that took over 40 mins at the gate in Washington before pulling back

Very good. Because of the delays with my previous flight, I missed my connection, but I was able to book another flight through the United app easily.

Was happy we finally got upgraded in 1st class. The seat getting old. The cushiness need some improvement.

Ineffective communication with United resulted in lost baggage. Their Baggage Tracing counter at MUC was shut down from 11:00-14:15 on my arrival. Undertrained, underinformed staff had me Running all over MUC to find someone to help me to no avail. Staff was rude, unhelpful, and unable to effectively use the systems they did have operational. They refused to contact United in any way or provide any accommodation or other resources while I waited for my luggage. This has destroyed my downstream itinerary. If they had even the slightest visibility I may have been able to reschedule/plan, but again, their staff provided nothing, and did nothing more than their website, which doesn’t even work on a standard phone browser. Miserable failure at all levels that weren’t associated with the operation of the aircraft.

Sat next to a one year old. She crawled all over the place and made me laugh.

The Crew and the food was the worst I ever had in Business Class. First they told us there were no space for carry on. It was plenty of space over our 2 row seats, we had to ask to let us travel with it which was accepted. They were aware that we had to run for the connection due to the previous flight delay. Have us one hour waiting for more customers and not even offer a glass of water. Then started the service and they started to serve other passengers drinks in business and did not offer any drinks until they serve our pre ordered meal and I ask for something to drink. I had to wait until they finished to serve all passengers until Inget something. The crew was the worts I ever had for Business Class in my life.

Not great experience - we were super late boarding due to issues with aircraft. Then when we finally all got onboard and seated and they started taxiing out to the runway they just stopped then turned around and went back to the airport. Apparently the crew “ran out of time” to legally fly us. They mentioned that they were about 2 minutes away from taking off. I understand the rules and safety but kinda wonder why they would have bothered boarding us in the first place? Had to go all the way back and de plane and then wait in a HUGE line to get a hotel (this is somewhere around 2:30am) finally got to hotel by Uber (no shuttle after 20min so gave up) and they ended up putting us all back on the same aircraft at 10am next morning so got about 2.5 hours sleep. They did give us. $250 credit, but it was a São Paulo Brazil flight out of Dulles. The flight and everything was fine.

Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.

7 hours delayed due to operational issues on United’s end. Basically laziness.

Short flight but an "eager to help" crew made the journey more enjoyable!

It was delayed and I lost my connection flight to Cali and I missed my Mom's funeral

I actually upgraded to the medium level of seats from basic and even doing that it may have been physically the most uncomfortable flight I have ever had. They packed everyone like is a train to death camp. It was a red eye so I hoped to get some sleep but it was physically impossible to find a comfortable way to rest. I met other folks on the same flight and they said the same thing. It was an utterly miserable flight and if I have any other options I will never fly with them again

Provide free food and drinks on an international flight. Add updated head rests

Deplaning was a mess, I sat in business (seats are horrible) and the front door had a problem so we had to deplane from the rear exit. The stairs were not tall enough to reach so there was a large step down from the plane to the top of the stairs.

Staff are the rudest in the industry … awful customer service … will never fly Avianca again

Pros: we leave and arrive on time Cons: the most uncomfortable seats ever. You cant recline at all your seats. No entertainment No TVs flight attendants didn't provide even a glass of water. You have to go to back of the airplane and ask for one. I am Colombian and I remember seeing the flight attendants very neat, elegants which is or was a staple of Avianca.it was one with tennis shoes, no male up, the hair was messy... that was really odd.

Here we have another airline flying to Guatemala but doesn't have a plus or a less, just in the middle. Why? Well, first we don't have even free water Movie selection is poor Seats don't recline in some places Food selection is carb based Forgot to mention, customer service on the web is the worst. Good things; Very reliable on schedule Kind crew

Last seat of Bussines Class it does recline but passenger seating behind kept pushing since they did not have space once my seat was reclined

I like the crew they're very friendly. I don't like. on five hour flight they not offered snacks. Any drink. Not even coffee

Not even water is offered on the flight. You cannot lean back on the seats and the seats are so narrow you can’t avoid rubbing elbows with the person next to you.

Everything you need to know for your flight to South America

Information on your arrival and departure airports