$148 Find Cheap Flights from Washington Dulles Airport to South America - Compare and Save

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 6/16. 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.
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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$458
Bogotá
Bogotá2 stops$469
Buenos Aires
Buenos Aires2 stops$646
Sao Paulo
Sao Paulo2 stops$706
Rio de Janeiro
Rio de Janeiro1 stop$614
Santiago
Santiago2 stops$587
Cartagena
Cartagena1 stop$367
Quito
Quito1 stop$464
Guayaquil
Guayaquil1 stop$450
Cali
Cali1 stop$346
Cusco
Cusco1 stop$595
Georgetown
Georgetown1 stop$523
Pereira
Pereira1 stop$433
Barranquilla
Barranquilla1 stop$349
Montevideo
Montevideo1 stop$739
Santa Marta
Santa Marta2 stops$508
Asuncion
Asuncion1 stop$713
Lima
Lima2 stops$458
Bogotá
Bogotá2 stops$469
Buenos Aires
Buenos Aires2 stops$646
Sao Paulo
Sao Paulo2 stops$706
Rio de Janeiro
Rio de Janeiro1 stop$614
Santiago
Santiago2 stops$587
Cartagena
Cartagena1 stop$367
Quito
Quito1 stop$464
Guayaquil
Guayaquil1 stop$450
Cali
Cali1 stop$346
Cusco
Cusco1 stop$595
Georgetown
Georgetown1 stop$523
Pereira
Pereira1 stop$433
Barranquilla
Barranquilla1 stop$349
Montevideo
Montevideo1 stop$739
Santa Marta
Santa Marta2 stops$508
Asuncion
Asuncion1 stop$713

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

Wed, Oct 21 - Wed, Oct 28
Copa Airlines Logo
4:34 pm - 8:05 am
IAD
-
CTG
16h 31m
1 stop
Copa Airlines Logo
12:05 pm - 4:20 am
CTG
-
IAD
15h 15m
1 stop
$367Copa Airlines
Mon, Sep 14 - Mon, Sep 21
Avianca Logo
6:50 am - 3:15 pm
IAD
-
CTG
9h 25m
1 stop
Avianca Logo
1:30 pm - 2:15 am
CTG
-
IAD
11h 45m
2 stops
$371Avianca
Sat, Aug 29 - Thu, Sep 3
Delta Logo
6:00 am - 1:05 pm
IAD
-
CTG
8h 05m
1 stop
Delta Logo
2:30 pm - 12:34 am
CTG
-
IAD
9h 04m
1 stop
$372Delta
Mon, Aug 3 - Mon, Aug 10
Avianca Logo
6:50 am - 7:15 pm
IAD
-
CTG
13h 25m
1 stop
Avianca Logo
4:00 pm - 5:20 am
CTG
-
IAD
12h 20m
1 stop
$373Avianca
Mon, Sep 7 - Tue, Sep 15
Copa Airlines Logo
2:25 am - 10:55 am
IAD
-
MDE
9h 30m
1 stop
Copa Airlines Logo
3:10 pm - 3:04 pm
MDE
-
IAD
22h 54m
1 stop
$415Copa Airlines
Sat, Jul 18 - Sun, Aug 30
United Airlines Logo
10:20 pm - 9:10 pm
IAD
-
MDE
23h 50m
1 stop
United Airlines Logo
9:45 am - 12:30 am
MDE
-
IAD
13h 45m
1 stop
$417United Airlines
Mon, Sep 7 - Wed, Sep 16
LATAM Airlines Logo
6:00 am - 10:00 pm
IAD
-
LIM
17h 00m
2 stops
LATAM Airlines Logo
12:05 pm - 12:32 am
LIM
-
IAD
11h 27m
1 stop
$458LATAM Airlines
Tue, Oct 27 - Fri, Nov 6
LATAM Airlines Logo
7:50 pm - 5:00 am
IAD
-
LIM
10h 10m
1 stop
LATAM Airlines Logo
12:05 am - 11:52 am
LIM
-
IAD
11h 47m
1 stop
$462LATAM Airlines
Thu, Jul 2 - Tue, Jul 28
United Airlines Logo
6:30 am - 8:00 am
IAD
-
EZE
24h 30m
1 stop
United Airlines Logo
9:00 pm - 11:28 am
EZE
-
IAD
15h 28m
1 stop
$667United Airlines
Thu, Jul 2 - Sun, Jul 26
Delta Logo
12:39 pm - 9:40 am
IAD
-
EZE
20h 01m
2 stops
Delta Logo
8:10 pm - 2:01 pm
EZE
-
IAD
18h 51m
1 stop
$671Delta
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 5 days was to Bogotá, at $377 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 5 days was $377.

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 $694, 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 March, when tickets cost $446 (return) on average. On the other hand, the most expensive months are December and July, when the average cost of round-trip tickets is $1,007 and $606 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 22% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$148
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly with an average 38% 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.

Top tips for finding cheap flights to South America

  • Looking for a cheap flight? 25% of our users found tickets from Washington Dulles Airport to the following destinations at these prices or less: Bogotá $391 one-way - $492 round-trip

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 8395 reviews
7.8Comfort
7.2Food
8.5Crew
8.1Boarding
7.8Entertainment
Airline reviews

Long story short, it was one of the better flight experiences I've had in some time when compared with other airlines.

10.0 ExcellentJulian, Jun 2026
LAX - AUS
Read more Delta reviews

Long story short, it was one of the better flight experiences I've had in some time when compared with other airlines.

Flight was great! This flight from Atlanta was even better than when I paid for Comfort from SNA to Atlanta.

Connection flights should be spaced out farther because too close I missed my connection.

Definitely a southern flavor. Cordiality was evident even though no drinks or snacks were served.

On time! There were plenty of airport employees who were able to keep us moving in the right direction. The crew on the plane were professional.

Left /arrived on time. Decent seat space. Like the wifi/plugs and entertainment. Windows and tray table were kinda gross. Attendants didn't start snack service til 40mins before landing. Two rows before us, captain came on to say there's turbulence and recalled staff to seats. So, no drink/snack. Later, attendants didn't stop to see if we had trash nor even look our way. Felt invisible! Almost all pilot announcements were not only unintelligible, but so quiet. We had no idea what she said.

Average seat comfort, a drink and chips were provided, early boarding because we checked a carryon at the gate was nice. Ticket pricing shenanigans, including fees to pick a seat, check a bag, and get food onboard - evidence the industry is reinvigorating last century’s strategies- destroys the experience before one ever arrives at the airport. It’s difficult to recognize any value or sustain loyalty in the end-to-end process making air travel more drudgery than pleasure.

Gate agent was unhelpful for handicapped boarding. Flight attendant seemed untrained.

No service flight that took 5 hrs and a stop at an unscheduled airport. Crew and pilots did their jobs

Clean planes and not take my comfort class seat away.

I was flying business class, and the French fellow passengers were super noisy. It was not a comfortable flight. And the crew was not helpful.

Boarding was a mess, they call all priority members without distinction so gold, platinum, silver were all mixed together in a long line which defeats the purpose

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)

Honestly first time flying with delta and it was pretty good. All the process very smooth and crew was always nice and attentive.

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

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.

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.

Our flight was canceled same day and we were never informed. Had to pay more and worse seating on another airline.

Did not like that we couldn't complete check in on-line without providing pictures of our passports. Worry about identity theft. We had no delays and boarding was handled In an efficient manner.

Excellent! I got to Munich and was transferred to my Lufthansa flight quickly, in 15 to 20 minutes, so I did not miss my flight. However, I had checked my overhead bag at the boarding gate in Tampa. That got to Tunis the next day. That is to be expected.

WiFi didn’t exist , seats were super cramped, lights stayed on near my seat for a long time while others were dimmed, the food/trash/drink cart hit my shoulder at least a couple of times while moving, food options were down to just one option by the time it got to my row, the utensils were garbage (knife bent at a couple of places by the time I was done eating) the spoon was very flimsy plastic

Vegetarian selection could be better. Bread was too hard to chew.

Crew was friendly and competent. Food, wine, and entertainment were excellent except the raw tuna on the flight to Split. Recommend against serving that - at least as the only option. Many medical conditions do not allow people to eat raw fish.

United didn’t even try to hold the flight for me. They knew I had a tight connection and when I arrived at the gate less than 10 mins after final boarding the flight had already gone. The gate agent wasn’t even notified that I was on my way. She was told I wasn’t at the airport

Good quick flight on a small but comfortable plane. I'm 6'3 and had plenty of space.

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

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

Seats are absolutely not comfortable and large enough. There’s a limit and you stepped over it. I understand that there’s a business class, however for the price it costs, it’s just plain stupid for a 50 minute flight.

Overall, the flight went well and the service was good. However, there was a very frightening moment during landing in Bogotá. Just as the plane was about to touch down, it suddenly went back up into the air. The aircraft was not descending straight and seemed to move left and right, which made the situation feel unstable. This was quite scary. After going back up, the plane circled for about 15 minutes before attempting to land again. Although I understand that safety always comes first and situations like this can happen, it was still a shocking experience for passengers.

The worst experience I've ever had because the "people" @ Avianca wouldn't let me fly because they said I needed a round trip ticket

Seating was tight. Seats don't recline. Initial flight was cancelled. Lost two days of vacation.

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

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

Everything you need to know for your flight to South America

Information on your arrival and departure airports