$120 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 10/25. 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

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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
Lima2 stops$363
Bogotá
Bogotá1 stop$338
Buenos Aires
Buenos Aires1 stop$618
Sao Paulo
Sao Paulo2 stops$595
Rio de Janeiro
Rio de Janeiro1 stop$523
Santiago
Santiago1 stop$625
Cartagena
Cartagena1 stop$284
Quito
Quito1 stop$361
Cali
Cali1 stop$264
Guayaquil
Guayaquil1 stop$338
Cusco
Cusco3 stops$513
Pereira
Pereira1 stop$360
Georgetown
Georgetown1 stop$471
Montevideo
Montevideo1 stop$594
Barranquilla
Barranquilla1 stop$270
Santa Marta
Santa Marta2 stops$342
Florianopolis
Florianopolis1 stop$531
Lima
Lima2 stops$363
Bogotá
Bogotá1 stop$338
Buenos Aires
Buenos Aires1 stop$618
Sao Paulo
Sao Paulo2 stops$595
Rio de Janeiro
Rio de Janeiro1 stop$523
Santiago
Santiago1 stop$625
Cartagena
Cartagena1 stop$284
Quito
Quito1 stop$361
Cali
Cali1 stop$264
Guayaquil
Guayaquil1 stop$338
Cusco
Cusco3 stops$513
Pereira
Pereira1 stop$360
Georgetown
Georgetown1 stop$471
Montevideo
Montevideo1 stop$594
Barranquilla
Barranquilla1 stop$270
Santa Marta
Santa Marta2 stops$342
Florianopolis
Florianopolis1 stop$531

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

Sat, Feb 7 - Thu, Feb 12
Copa Airlines Logo
3:34 pm - 8:41 amIAD-CTG
17h 07m1 stop
Copa Airlines Logo
3:02 pm - 3:15 amCTG-IAD
12h 13m1 stop
$284Copa Airlines
Find Deal
Mon, Oct 6 - Wed, Oct 15
Copa Airlines Logo
2:25 am - 8:17 amIAD-MDE
6h 52m1 stop
Copa Airlines Logo
3:29 pm - 12:30 amMDE-IAD
8h 01m1 stop
$291Copa Airlines
Find Deal
Tue, Nov 11 - Mon, Nov 17
Avianca Logo
4:30 am - 12:55 pmIAD-MDE
8h 25m1 stop
Avianca Logo
4:20 am - 1:15 pmMDE-IAD
8h 55m1 stop
$293Avianca
Find Deal
Wed, Oct 15 - Mon, Oct 20
Avianca Logo
7:00 am - 3:17 pmIAD-MDE
9h 17m1 stop
Avianca Logo
5:08 am - 2:00 pmMDE-IAD
7h 52m1 stop
$294Avianca
Find Deal
Wed, Nov 12 - Tue, Nov 18
United Airlines Logo
6:00 am - 10:05 pmIAD-MDE
16h 05m1 stop
United Airlines Logo
10:45 am - 8:51 pmMDE-IAD
10h 06m1 stop
$303United Airlines
Find Deal
Sat, Sep 20 - Wed, Oct 1
United Airlines Logo
10:05 pm - 9:10 pmIAD-MDE
24h 05m1 stop
United Airlines Logo
9:45 am - 10:06 pmMDE-IAD
11h 21m1 stop
$310United Airlines
Find Deal
Sat, Oct 25 - Sat, Nov 1
LATAM Airlines Logo
6:00 am - 1:14 pmIAD-CTG
8h 14m1 stop
LATAM Airlines Logo
2:30 pm - 11:20 pmCTG-IAD
7h 50m1 stop
$353LATAM Airlines
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Fri, Oct 24 - Mon, Oct 27
Delta Logo
6:00 am - 7:15 pmIAD-BOG
14h 15m1 stop
Delta Logo
3:55 pm - 11:31 amBOG-IAD
18h 36m1 stop
$353Delta
Find Deal
Sat, Feb 21 - Wed, Feb 25
LATAM Airlines Logo
6:00 am - 2:15 pmIAD-CTG
8h 15m1 stop
LATAM Airlines Logo
3:30 pm - 9:11 amCTG-IAD
17h 41m1 stop
$356LATAM Airlines
Find Deal
Wed, Oct 15 - Thu, Oct 23
Delta Logo
12:27 pm - 10:55 amIAD-BOG
23h 28m2 stops
Delta Logo
1:35 am - 7:18 pmBOG-IAD
16h 43m2 stops
$357Delta
Find Deal
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 $325 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 $325.

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 $621, 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 $432 (return) on average. On the other hand, the most expensive months are December and July, when the average cost of round-trip tickets is $795 and $574 respectively.

What’s the cheapest day of the week to fly from Washington Dulles Airport to South America?

The average price of all round-trip flights from Washington, D.C. Dulles Intl Airport to South America clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to South America on a Monday and more expensive on a Saturday. On your return trip to Washington Dulles Airport, you should consider flying back on a Tuesday, and avoid Sundays for better deals.

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 17% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$120
Best time to beat the crowds with an average 2% drop in price.
Most popular time to fly with an average 60% increase in price.
Flight from Washington Dulles Airport to Cartagena

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.

  • What is the cheapest time of day to fly to South America?

    The cheapest time of day to fly to South America is generally in the evening, when round-trip flights cost $526 on average. Morning departures are around 1% more expensive than evening flights, on average. The most expensive time of day to fly to South America is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $648.

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 7957 reviews
7.9Entertainment
7.9Comfort
8.5Crew
8.2Boarding
7.3Food
Airline reviews

The staff and the boarding procedure were all amazing . The one flight was not equipped with WIFI which now adays seems odd. All in all the experience was good

8.0 ExcellentAnonymous, Sep 2025GFK - MSP
Read more Delta reviews

The staff and the boarding procedure were all amazing . The one flight was not equipped with WIFI which now adays seems odd. All in all the experience was good

Passengers need to check in big baggage instead of bringing on the plane. That cause inconvenience for everyone. Otherwise flight was good.

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

The food was terrible especially for a 15 hour international flight. The crew was unpleasant as well.

Really low quality food especially for an international flight. The crew also was surprisingly unpleasant except couple of ladies. I know we were not in first class but that’s no reason to treat customers as less.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

Quick check in. Everything went smooth. I don't know what can be done about airline food.

Crew was good. The reservation got mixed up and they didn't have my TSA number. I am also a Silver Medallion and wasn't able to use Sky Priority.

Delta made it easy, comfortable and timely. The crew was fantastic.

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

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.

We paid extra with copa for seats near one another The plane was changed and we lost our seats We were all Separated. We have not received a refund for our seats despite emailing and calling.

It was ok. However, the food was quite poor since I don't eat pasta.

Tell people to remain in their seats during the meal/beverage distribution. Enforce boarding by group numbers. No one was checking. Tell people to turn their electronics speakers off. Bigger cups for drinks.

Enforce the boarding process by group numbers. Tell people to stay seated during the meal/drink distribution. It took forever to get food and drinks because people would not stay out the isle and let the crew do their jobs. Everyone wanted to go to the bathroom forcing the crew to enter and leave the isle constantly so people can pass. Tell people to keep their electronics off speaker mode. No one wants to hear phone conversations and music playing.

Placed us in the last rear row of the plane so could not recline seats because of the rear wall, and also made it more of a tight space when the passenger in front reclined their seat. While understand seat assignments, every passenger should be afforded a reclining seat. The odor control scent from the restrooms was overwhelming strong. My wife and I could not deal with it, and she suffered a terrible headache as a result. I kept getting hit by the crew since I was on the ilse seat. No apologies, nothing. They made me feel like I was supposed to take the beating for a 3 hr flight.

There was no individual at the front check in when I arrived. I waited for at least 15 minutes and walked around asking security/janitors if they could help and they did not have a solution. So I had to take my checked bag through security and they threw away some of my items. I ended up making it to the gate only a few minutes before it closed due to my waiting for an agent at check in.

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.

My biggest complaint is the comfort. I am not tall and there was no legroom. It was very uncomfortable. During my transfer in Sao Paola, the flight was slightly delayed so boarding was confusing because there were no instructions in English.

Horrible the worst airlines I have ever flown. Cancelled flight with no choices and when contacted them they were not helpful

I never got this flight. You sent me to Chile!!! And from Chile I got the other flight to São Paulo... I've arrived 7h latter than I was supposed to arrive because of Delta delays.

Because the flight was late, we lost the connection to Brazil. You, Delta delayed, and you Delta anticipated the door closing in 15 min from Miami to GRU. Why? It caused a lot of stress! I almost could not see my mother in law alive because of your delay.

Boarding was done by woman who insisted on strict standing in line policy; food was ok; entertainment minimal

entertainment was not good; the shoulder strap on Business class seat did not sit well across the body (more like across the neck); the food was not hot and the special meal promoted by insert in the menu was not available to us

Wider seats, better seat cushions, (I felt like there was a board I was sitting on). I had the chicken to eat but It neither tasted nor looked like chicken. The fruit was good.

Terrible. They wouldn't allow me on my flight on the 14th..

We had to deboard 2 times due to maintenance issues. They changed the plane, and then we got deviated to LAX due to maibtenance issues on the other plane, had to sleep at LAX and los a full day.

Everything was good, except the seats in economy were so close together, you could barely get out when the seat in front of your was reclined. If the airlines keep jamming in more and more seats, it will become intolerable. I will look for another airline that considers customer comfort and does not keep adding more rows of seats for more profit.

Great service on board. Boarding a bit slow due to process. Food was pretty average.

Very small cramped plane for an international flight. Everything else was good, but it was maybe the smallest comfort-wise I've ever been on for longer than 3-4 hours and the trip was 7.5

Flight was delayed 3 hours. No food and drink vouchers was provided. They offered a mini pretzel bag and water .

Staff was rude. Didn’t give water for 2 hours. Worst service

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

I liked the choice of lemon ginger tea. I think stewardesses can be more considerate of older people needs.

We were given vouchers we couldn’t use with a 5.5 hour delay

Boarding, crew were excellent, food was ok and entertainment need to improve

Luggage lost and nowhere to be found, no response from either airline regarding my bag

The seats were uncomfortable and barely reclined at all. Very little leg room despite being business class. The crew was friendly and the food was good. Had to use my own phone for in-flight entertainment.

It was horrible. My experience with Avianca. I didn’t know it was Pakistan international Airlines but anyway, whatever it is it is bad horrible you guys need to upgrade everything in those planes. And you guys charge $130 for a carry-on did they wanna let me in with my carry-on that I travel everywhere with the luggage you guys are such a dog thank you

Boarding was excessively slow. They do it by groups in a way that it doesn’t make sense. After business class , ppl that need assistance and any other priority group they should have ppl board from the back to the front. First rows 20+. Then 15+. Then 10, etc. having ppl sitting in the back board last makes no sense. The libe backame long as soon as ppl on rows 10 or so where told to board. The line went all the way up the ramp and tunnel for 25 mins.

Seats are very tight even in Plus, no complimentary snacks or beverage

The chicken that was served in business class was cold!

I receive a service for what I pay, so it is fair.

Purchased a business class ticket and got a economy seat with center seat blocked they call it business. 3100usd ticket on a flight where economy costs 500usd The biggest scam insult have had on a regular airline. Avianca should be in the low cost category and kicked out of Star Alliance. I want the difference to be credited. Ets see what Avianca does. No reply so far. Avianca = low cost airline. Beware

The seats were very uncomfortable. I would have upgrade or got different flight if I knew. I usually sleep in the plane but I couldn’t sleep at all. Very uncomfortable. Also no food or drink everything was to purchase, and that’s u usual for international flight.

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