$131 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 5/15. 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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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
Lima2 stops$427
Bogotá
Bogotá2 stops$409
Buenos Aires
Buenos Aires1 stop$589
Sao Paulo
Sao Paulo2 stops$659
Rio de Janeiro
Rio de Janeiro1 stop$592
Santiago
Santiago3 stops$682
Cartagena
Cartagena1 stop$359
Quito
Quito1 stop$391
Guayaquil
Guayaquil1 stop$385
Cali
Cali1 stop$329
Cusco
Cusco2 stops$569
Georgetown
Georgetown1 stop$523
Pereira
Pereira1 stop$420
Barranquilla
Barranquilla1 stop$329
Montevideo
Montevideo2 stops$767
Santa Marta
Santa Marta1 stop$502
Asuncion
Asuncion3 stops$929
Lima
Lima2 stops$427
Bogotá
Bogotá2 stops$409
Buenos Aires
Buenos Aires1 stop$589
Sao Paulo
Sao Paulo2 stops$659
Rio de Janeiro
Rio de Janeiro1 stop$592
Santiago
Santiago3 stops$682
Cartagena
Cartagena1 stop$359
Quito
Quito1 stop$391
Guayaquil
Guayaquil1 stop$385
Cali
Cali1 stop$329
Cusco
Cusco2 stops$569
Georgetown
Georgetown1 stop$523
Pereira
Pereira1 stop$420
Barranquilla
Barranquilla1 stop$329
Montevideo
Montevideo2 stops$767
Santa Marta
Santa Marta1 stop$502
Asuncion
Asuncion3 stops$929

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

Thu, May 14 - Sun, May 17
Avianca Logo
6:50 am - 9:30 pm
IAD
-
MDE
15h 40m
2 stops
Avianca Logo
2:10 pm - 4:20 am
MDE
-
IAD
13h 10m
1 stop
$336Avianca
Fri, May 8 - Tue, May 12
Avianca Logo
3:35 pm - 5:55 am
IAD
-
MDE
15h 20m
2 stops
Avianca Logo
2:10 pm - 2:45 am
MDE
-
IAD
11h 35m
1 stop
$343Avianca
Sat, Aug 29 - Thu, Sep 3
Delta Logo
7:00 am - 1:13 pm
IAD
-
CTG
7h 13m
1 stop
Delta Logo
2:28 pm - 12:10 am
CTG
-
IAD
8h 42m
1 stop
$359Delta
Thu, May 7 - Sun, May 10
Copa Airlines Logo
9:37 am - 11:00 pm
IAD
-
CTG
14h 23m
1 stop
Copa Airlines Logo
9:45 am - 4:21 am
CTG
-
IAD
17h 36m
1 stop
$362Copa Airlines
Mon, May 4 - Sat, May 9
Delta Logo
5:27 pm - 1:20 pm
IAD
-
CTG
20h 53m
1 stop
Delta Logo
2:30 pm - 12:51 am
CTG
-
IAD
9h 21m
1 stop
$365Delta
Wed, Jun 3 - Sun, Jun 7
Copa Airlines Logo
2:21 am - 8:40 am
IAD
-
CTG
7h 19m
1 stop
Copa Airlines Logo
9:45 am - 4:21 am
CTG
-
IAD
17h 36m
1 stop
$367Copa Airlines
Thu, May 7 - Tue, May 12
LATAM Airlines Logo
10:11 am - 6:59 pm
IAD
-
UIO
9h 48m
1 stop
LATAM Airlines Logo
6:50 pm - 2:13 pm
UIO
-
IAD
18h 23m
2 stops
$422LATAM Airlines
Tue, Jun 2 - Wed, Jun 3
LATAM Airlines Logo
3:08 pm - 5:00 am
IAD
-
LIM
14h 52m
2 stops
LATAM Airlines Logo
1:30 pm - 11:42 am
LIM
-
IAD
21h 12m
2 stops
$427LATAM Airlines
Tue, May 5 - Tue, May 26
United Airlines Logo
10:20 pm - 8:00 am
IAD
-
EZE
32h 40m
1 stop
United Airlines Logo
9:00 pm - 10:43 pm
EZE
-
IAD
26h 43m
1 stop
$590United Airlines
Tue, May 5 - Tue, May 26
United Airlines Logo
6:00 am - 8:00 am
IAD
-
EZE
25h 00m
1 stop
United Airlines Logo
9:00 pm - 6:50 pm
EZE
-
IAD
22h 50m
1 stop
$591United 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 $359 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 $359.

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 $651, 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 February, when tickets cost $411 (return) on average. On the other hand, the most expensive months are December and July, when the average cost of round-trip tickets is $770 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 24% 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$131
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly with an average 51% 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 $238 one-way - $508 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 8438 reviews
8.1Boarding
8.5Crew
7.2Food
7.8Entertainment
7.9Comfort
Airline reviews

Everything was great. The only issue is unfixable. Seats are too small. 😁🤪

10.0 ExcellentAnonymous, Apr 2026
ATL - AMS
Read more Delta reviews

Everything was great. The only issue is unfixable. Seats are too small. 😁🤪

This wasn't my experience with Delta. It was just the Pegasus flight. Seats were very hard. Staff was kinda rough. Not very nice. Charged me for snacks. For a 4 hour flight I would've expected more.

Crew was nice, meal was good. Entertainment had to be rebooted 3 times and still did not work. Turns out there was residue on screen, it needed to be cleaned to prevent the touchscreen buttons from continuously activating. I had entertainment for the last 45 minutes of a 5 hour 45 minute flight. Really unacceptable for first class. Flight attendent indicated your cleaning solution creates this problem. Seems as if this is widely known, you should be using a different product or cleaning better. Really really disappointing which simply added to the wi fi on your planes with reliably never ever works.

The baggage belt was not updated on the Delta App and was displayed on the wrong belt board. Was not expecting this to happen.

The plan was delayed and left DC 90 minutes late. However, it showed a 20 minute delay on the delta app, then a 12 min delay. It turned out to be an hour delay. I found out where the plane was with flightaware. Stop keeping customers in the dark about what is going on.

Everything went smoothly, although the usual gripes about airline travel were still present: the boarding process is inefficient, the snack selection is limited, and so on. Since there was extra space on the flight, the gate agent rearranged many people's seats to put people on the aisles and windows, leaving the middle seats empty, as much as possible, which was pretty great.

Landed without a gate ready. Plane is extremely old and dirty.

All the amenities was wonderful, if they could keep their prices that low. I'd fly with them all the time.

Very old plane with no inflight entertainment. I purchased the internet pass and it was nearly unusable.

My tray was broken so i had no place to work or eat except my lap. Flight attendant said I would get an email with some credit or miles, it was a complete waste of time as I could only function at about 20% of normal. I have not received anything yet.

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

Entire experience from check in to landing was amazing the flight crew was excellent and friendly. Seats were comfortable.

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.

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

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.

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.

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

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 was great! They waited for me as Air Canada flight was delayed by 1:15 hours from Ottawa to Toronto. I am a bit disappointed that we could only use wifi for entertainment but I survived! The only thing I would of liked is a more comfortable seat. The seat cushions are not thick enough for flights longer than 3 hours. Aside from that, everything was great.

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