$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 8/10. 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

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Best South America Flight Deals from Dulles Intl

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Lima
Lima2 stops$339
Bogotá
Bogotá2 stops$271
Buenos Aires
Buenos Aires1 stop$592
Sao Paulo
Sao Paulo1 stop$501
Rio de Janeiro
Rio de Janeiro1 stop$470
Cartagena
Cartagena1 stop$284
Santiago
Santiago1 stop$477
Quito
Quito1 stop$381
Cali
Cali1 stop$267
Guayaquil
Guayaquil1 stop$365
Cusco
Cusco2 stops$454
Georgetown
Georgetown1 stop$471
Pereira
Pereira1 stop$366
Montevideo
Montevideo2 stops$680
Barranquilla
Barranquilla1 stop$276
Santa Marta
Santa Marta1 stop$365
Florianopolis
Florianopolis1 stop$534
Lima
Lima2 stops$339
Bogotá
Bogotá2 stops$271
Buenos Aires
Buenos Aires1 stop$592
Sao Paulo
Sao Paulo1 stop$501
Rio de Janeiro
Rio de Janeiro1 stop$470
Cartagena
Cartagena1 stop$284
Santiago
Santiago1 stop$477
Quito
Quito1 stop$381
Cali
Cali1 stop$267
Guayaquil
Guayaquil1 stop$365
Cusco
Cusco2 stops$454
Georgetown
Georgetown1 stop$471
Pereira
Pereira1 stop$366
Montevideo
Montevideo2 stops$680
Barranquilla
Barranquilla1 stop$276
Santa Marta
Santa Marta1 stop$365
Florianopolis
Florianopolis1 stop$534

Cheap Flights from Dulles Intl to South America

 
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, Sep 6 - Tue, Sep 16
Copa Airlines Logo
2:25 am - 8:17 amIAD-MDE
6h 52m1 stop
Copa Airlines Logo
10:46 am - 4:20 amMDE-IAD
16h 34m1 stop
$268Copa Airlines
Find Deal
Tue, Sep 9 - Tue, Sep 16
Copa Airlines Logo
4:34 pm - 8:17 amIAD-MDE
16h 43m1 stop
Copa Airlines Logo
10:46 am - 4:20 amMDE-IAD
16h 34m1 stop
$271Copa Airlines
Find Deal
Sat, Aug 23 - Tue, Aug 26
Avianca Logo
1:05 am - 12:15 pmIAD-BOG
12h 10m2 stops
Avianca Logo
3:59 am - 3:45 pmBOG-IAD
10h 46m1 stop
$271Avianca
Find Deal
Thu, Sep 18 - Sun, Sep 21
Avianca Logo
4:05 am - 12:30 pmIAD-MDE
9h 25m2 stops
Avianca Logo
4:44 pm - 5:35 amMDE-IAD
11h 51m2 stops
$273Avianca
Find Deal
Sun, Sep 7 - Tue, Sep 16
United Airlines Logo
6:00 am - 9:10 pmIAD-MDE
16h 10m1 stop
United Airlines Logo
9:45 am - 8:52 pmMDE-IAD
10h 07m1 stop
$296United Airlines
Find Deal
Wed, Jul 30 - Tue, Aug 5
United Airlines Logo
6:10 am - 9:10 pmIAD-MDE
16h 00m1 stop
United Airlines Logo
9:45 am - 10:18 pmMDE-IAD
11h 33m1 stop
$303United Airlines
Find Deal
Tue, Sep 16 - Wed, Sep 24
LATAM Airlines Logo
12:35 pm - 7:15 pmIAD-BOG
7h 40m1 stop
LATAM Airlines Logo
9:00 am - 6:39 pmBOG-IAD
8h 39m1 stop
$316LATAM Airlines
Find Deal
Tue, Sep 16 - Wed, Sep 24
LATAM Airlines Logo
10:07 am - 7:54 pmIAD-BOG
10h 47m2 stops
LATAM Airlines Logo
2:55 pm - 9:09 amBOG-IAD
17h 14m1 stop
$320LATAM Airlines
Find Deal
Tue, Sep 23 - Tue, Oct 21
Delta Logo
7:20 am - 1:40 pmIAD-BOG
7h 20m1 stop
Delta Logo
1:35 am - 4:36 pmBOG-IAD
14h 01m2 stops
$325Delta
Find Deal
Fri, Sep 26 - Thu, Dec 4
Delta Logo
7:20 am - 10:59 pmIAD-CTG
16h 39m2 stops
Delta Logo
3:06 pm - 9:11 amCTG-IAD
18h 05m1 stop
$332Delta
Find Deal
Useful Info

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?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from Washington, D.C. Dulles Intl Airport to South America.

The cheapest ticket to South America from Washington, D.C. Dulles Intl Airport found in the last 72 hours was to Bogotá, at $295 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 $295.

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.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 3 stops layover the cheapest option at $1,070 on average.

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 October, when tickets cost $464 (return) on average. On the other hand, the most expensive months are December and July, when the average cost of round-trip tickets is $823 and $618 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. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.


Good to know

Low seasonFebruary
High seasonDecember
Cheapest flight$120
Best time to beat the crowds with an average 3% drop in price.
Most popular time to fly with an average 62% 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.
8.0
DeltaOverall score based on 7956 reviews
8.5Crew
8.2Boarding
7.9Entertainment
7.9Comfort
7.3Food
Airline reviews

Flight was canceled, and no effort was made to help with rebooking, no hotel vouchers, no car transportation and minimal food voucher and most places for food were closed by the time the voucher was given. Waited for 3 hours for bags. Simply the worst travel experience I have ever had

2.0 MediocreDana, Jul 2025JFK - DEN
Read more Delta reviews

Flight was canceled, and no effort was made to help with rebooking, no hotel vouchers, no car transportation and minimal food voucher and most places for food were closed by the time the voucher was given. Waited for 3 hours for bags. Simply the worst travel experience I have ever had

Food was surprisingly good but the WiFi was not great

this crew didn't care much. bumping carts into seats more times than i care to remember

Very late arrival at PWM. Late jet getting to ATL. Equipment problem with aircraft - could not get enough water onto plane., Another delay getting FAA approval for flight with bottled H2O. Not the crew’s problem.

Everything was fine except the entertainment was not working for half of the flight.

Easy boarding with an extremely kind attendant. Seats were spacious and we had 3 seats for 2 people so we could stretch out. Comfortable air flow and very attentive and hospital attendants. Bathrooms and food were the only negative. Bathrooms were so small you could hardly get in and close the door. I don’t think an obese person would fit or a person with a movement disability. Food was the trending food for flights, nonexistent. We spent $40 getting sandwich and snack at airport for our 6 hour flught.

At first, we were on the runway for about an hour, literally. The Captain did explain that the Control Tower just had a change shift (sounds like an unrealistic excuse) and then that we had to change a runway. A regular economy seat is made for 12 yo twiggy. I understand Delta wants to push for an upgrade, but after sitting in a Comfort seat and in First class. I would say First class is not worthy of my money. The landing was delayed because of the weather in NYC, I don't hold that against Delta, of course. The Captain did alert us to that upon takeoff in Vegas and again as we reached NY.

No one fussed at me about my pap machine as a 3rd pice on the plane. Boarding was pleasant and smooth. The boarding agent in Anchorage was a fun character- he could be in a movie. :~) The on-board crew were downright pleasant. No militant attitudes on Delta. Like all planes these days the seats are too narrow for standard Americans and at 5’2” there is barely enough leg room. I don’t know how tall people fold themselves into the seats. But that’s nothing specific to Delta

Great. Very smooth. Plenty of information. However, wish they would give out a menu in advance of making a dinner choice like other international airlines. The flight attendant says chicken or pasta and there are details about ingredients or spices requiring the passenger to ask which requires the flight attendant to answer many times. So easy to solve this problem. P

I'm a tall guy and even the seats with more leg room were not as comfortable as I had hoped.

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.

I was in the last row and they sent me to check in my luggage last minute after boarding. I had to go through the crowd.

Our flight was cancelled and it took them 5 hours to reschedule and the next morning they said we still didn’t have a new ticket.

We didn’t have any entertainment. I tried to go online without success. The airplane was extremely cold and they didn’t have blankets.

It was good, however the airplane was really cold. We received snacks and the crew was friendly.

Delta has an outstanding service. They are courteous and punctual most of the time. The flight departed a half hour late but we arrived 15 minutes early.

Although the flight is goof and the crew is good, the way the airline charges you for every service is ridiculous.

Everything was good except the check in. Could not do it online neither on the machines in the airport. Needed special assistance from the airline desk clerk

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.

Seats not reclining, no vegetarian food option, no snacks. 7.5 hr flight should have been more comfortable. Luggage limits are unusually small. 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.

It was delayed instead of departing at 9:20pm, we departed at 11pm… putting us in Columbus after 2am! It was awful. Had I known about the delay, I could have spent some time in the United Lounge… I was starving because I started my journey in Budapest… so I was exhausted and hungry. Plus I had to make new arrangements to be picked up at the airport in Columbus, instead of midnight it was 2:30 am after getting luggage and out of airport. Not feasible. I would have just stayed in Chicago for the night and gotten a morning flight.

Not a great experience. We paid for the upgrade for premium economy seats and seated ourselves in very comfortable seats. Someone came along with the same seat on their boarding pass. The aircraft had been changed and as a result we were booted out and sent further back to small uncomfortable seats. After complaining we were moved to emergency row seats, which gave us more leg room but the seats don’t recline. For people in our 70’s we found having to sit upright from California to NJ very uncomfortable. Not sure why they chose to move senior citizens instead of the two people that were allowed to take the more comfortable seats. Not happy.

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

The food should improve! And The flight should leave on time and not make the traveler wait.

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

I fly UAL 7-8 times per year. This flight was not up to snuff because it boarded very late "due to unexpected delays in restocking the plane" and yet Flight Aware showed the plane had landed some 10 hours earlier--so I think they could have planned accordingly. The FA's were nice but harried. The video system had to be rebooted 3-4 times. The food service was rather abrupt; they forgot my row and when I asked for my meal, they brought it with some impatience. Overall, the flight was fine, but the little details made it feel somewhat mundane and hurried.

I didn’t get on plane. Passport being processed by consulate with visa application. Tried to cancel through underpricer after purchasing cacelling for any reason. No dice, they are thieves.

When I booked it on Kayak it aaid that I wasn't allowed hamd luggage. I called United Airlines and it took them 6 minutes to figure out if I was allowed free hand luggage. Surely something that simple they should be able to tell me instantly.

We were delayed in Toronto on the tarmac for THREE hours with no clear indication as to why except that it was not a safety hazard. Pilot did apologize more than once but even he was unable to explain why exactly we were delayed. I overheard the stewards saying that the captain was very frustrated with the situation as well because he was not able to explain why except it had something to do with water supply or system on the aircraft and now we needed to wait for an engineer to approve the aircraft for flight. It was very frustrating and distressing as a passenger and we should have been given complimentary meals at the very least.

Flight was cramped with every seat taken. The food was fine, nothing crazy to write home about. The plane felt dated and needing some TLC, the button for the window shade didn't work and there were no AC outlets to use. When communicating with staff all except one nice lady never seemed happy to help me almost like I was bothering them when asked for things like a glass of water or a snack. The flight was overall fine. It did what was needed which is get me from point A to point B. But it certainly was not special. I don't expect much in economy but I believe economy on a host of other airlines is more memorable and better experience.

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

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

There isn't much space in-between seats and even water needs to be paid for during the flight.

We did not know about the bag fees until check in. They are way too high. It’s insane. We also had a huge delay and everything costed extra which was very annoying.

Lounge for business was closed. Boarding was rush and stand by. Seat for business is just the middle seat blocked and some more leg room.

Flew with our two children. Paid $380 to check two bags (one was overweight). They then left the bags behind on Sunday, December 21st, with all our family’s clothes and family Christmas presents. When we arrived at our destination they told us the bags had not arrived, and they thought (but didn’t know) they were still in Boston, but that there’d be a flight the next day and the bags would arrive the next day. The next day we found out there was no flight, now we’re hoping we get our bags before we fly back out. Meanwhile, trying to get any engagement or accurate information is a waste of time. The folks at the call center are just gatekeepers, who can’t connect with any departments that actually do things to solve a problem. Getting information is made deliberately difficult. My biggest regret is that I’ve had a number of awful experiences with Avianca traveling between the US and Colombia, and still let myself get suckered into buying these tickets because the schedule was great. Never again.

We were not aware carry-on bags cost extra until we arrived at the airport so, we were charged $240.00 for two small carry- on bags! There was a substantial fee for drinks and snacks. No wifi, or other entertainment was available. Waiting areas were crowded and uncomfortable.

COP 7,000 for a cup of mediocre coffee. I thought I was on Spirit Airlines for a minute. Otherwise the flight was fine. Nothing exceptional to report.

please see previous response; it covers the whole travel trajectory.

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