Cheap flights from Washington, D.C. Dulles Intl Airport to Buenos Aires from $275

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Dulles Intl Airport to Buenos Aires departing on 11/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Buenos Aires

Cheap round-trip flights

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Avianca Logo
5:45 am - 5:50 amIAD-EZE
22h 05m1 stop
Avianca Logo
7:35 am - 4:25 amEZE-IAD
22h 50m1 stop
$627Avianca
Find Deal
Sun, Nov 16 - Sun, Nov 23
Copa Airlines Logo
1:13 am - 1:00 amIAD-EZE
21h 47m1 stop
Copa Airlines Logo
3:57 am - 11:33 pmEZE-IAD
21h 36m1 stop
$628Copa Airlines
Find Deal
Sat, Nov 15 - Sat, Nov 22
Avianca Logo
5:45 am - 5:50 amIAD-EZE
22h 05m1 stop
Avianca Logo
7:35 am - 4:25 amEZE-IAD
22h 50m1 stop
$629Avianca
Find Deal
Sun, Nov 16 - Tue, Nov 25
United Airlines Logo
12:55 pm - 7:20 amIAD-EZE
16h 25m1 stop
United Airlines Logo
10:05 pm - 11:28 amEZE-IAD
15h 23m1 stop
$631United Airlines
Find Deal
Tue, Nov 4 - Tue, Nov 11
LATAM Airlines Logo
7:01 am - 6:20 amIAD-EZE
21h 19m2 stops
LATAM Airlines Logo
7:43 pm - 11:39 amEZE-IAD
17h 56m2 stops
$636LATAM Airlines
Find Deal
Tue, Nov 25 - Tue, Dec 2
Delta Logo
10:05 am - 9:00 amIAD-EZE
21h 55m1 stop
Delta Logo
7:45 am - 12:07 amEZE-IAD
17h 22m2 stops
$640Delta
Find Deal
Tue, Mar 24 - Tue, Apr 7
Copa Airlines Logo
3:24 pm - 7:59 amIAD-EZE
14h 35m1 stop
Copa Airlines Logo
3:57 am - 11:33 pmEZE-IAD
21h 36m1 stop
$648Copa Airlines
Find Deal
Thu, Nov 20 - Mon, Nov 24
United Airlines Logo
10:10 pm - 7:20 amIAD-EZE
31h 10m1 stop
United Airlines Logo
11:55 pm - 11:44 pmEZE-IAD
25h 49m1 stop
$657United Airlines
Find Deal
Sat, Nov 8 - Sat, Nov 15
LATAM Airlines Logo
12:35 pm - 9:35 amIAD-EZE
19h 00m2 stops
LATAM Airlines Logo
11:00 am - 2:51 pmEZE-IAD
29h 51m2 stops
$658LATAM Airlines
Find Deal
Sun, Jan 11 - Tue, Jan 27
Delta Logo
10:08 am - 7:20 amIAD-EZE
19h 12m1 stop
Delta Logo
10:15 pm - 4:48 pmEZE-IAD
20h 33m1 stop
$697Delta
Find Deal
Sun, Dec 14 - Thu, Dec 25

Avianca flights from Washington, D.C. Dulles Intl Airport to Buenos Aires Ministro Pistarini Airport

Our best Avianca deals on Washington, D.C. Dulles Intl Airport to Buenos Aires Ministro Pistarini Airport flight tickets
Avianca
Nov 16
IAD5:45 amWashington, D.C. Dulles Intl
22h 05m
1 stop
EZE5:50 amBuenos Aires Ministro Pistarini
Nov 23
EZE7:35 amBuenos Aires Ministro Pistarini
22h 50m
1 stop
IAD4:25 amWashington, D.C. Dulles Intl
Avianca
Nov 16
IAD5:45 amWashington, D.C. Dulles Intl
22h 05m
1 stop
EZE5:50 amBuenos Aires Ministro Pistarini
Nov 25
EZE7:35 amBuenos Aires Ministro Pistarini
22h 50m
1 stop
IAD4:25 amWashington, D.C. Dulles Intl
Avianca
Nov 25
IAD2:35 pmWashington, D.C. Dulles Intl
13h 15m
1 stop
EZE5:50 amBuenos Aires Ministro Pistarini
Dec 2
EZE7:30 amBuenos Aires Ministro Pistarini
22h 55m
1 stop
IAD4:25 amWashington, D.C. Dulles Intl

Copa Airlines flights from Washington, D.C. Dulles Intl Airport to Buenos Aires Ministro Pistarini Airport

Our best Copa Airlines deals on Washington, D.C. Dulles Intl Airport to Buenos Aires Ministro Pistarini Airport flight tickets
Copa Airlines
Nov 15
IAD1:13 amWashington, D.C. Dulles Intl
21h 47m
1 stop
EZE1:00 amBuenos Aires Ministro Pistarini
Nov 22
EZE3:57 amBuenos Aires Ministro Pistarini
21h 36m
1 stop
IAD11:33 pmWashington, D.C. Dulles Intl
Copa Airlines
Nov 20
IAD3:24 pmWashington, D.C. Dulles Intl
14h 35m
1 stop
EZE7:59 amBuenos Aires Ministro Pistarini
Nov 24
EZE3:57 amBuenos Aires Ministro Pistarini
21h 36m
1 stop
IAD11:33 pmWashington, D.C. Dulles Intl
Copa Airlines
Nov 19
IAD1:13 amWashington, D.C. Dulles Intl
21h 40m
1 stop
EZE12:53 amBuenos Aires Ministro Pistarini
Nov 25
EZE10:01 amBuenos Aires Ministro Pistarini
15h 32m
1 stop
IAD11:33 pmWashington, D.C. Dulles Intl

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport to Buenos Aires Ministro Pistarini Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated October 13, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Buenos Aires Ministro Pistarini Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Sun 11/16

5:45 am-5:50 am

1 stop22h 05m

Buenos Aires Ministro Pistarini

Sun 11/23

7:35 am-4:25 am

1 stop22h 50m

$627

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Sat 11/15

1:13 am-1:00 am

1 stop21h 47m

Buenos Aires Ministro Pistarini

Sat 11/22

3:57 am-11:33 pm

1 stop21h 36m

$628

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Sun 11/16

5:45 am-5:50 am

1 stop22h 05m

Buenos Aires Ministro Pistarini

Tue 11/25

7:35 am-4:25 am

1 stop22h 50m

$629

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Tue 11/4

12:55 pm-7:20 am

1 stop16h 25m

Buenos Aires Ministro Pistarini

Tue 11/11

10:05 pm-11:28 am

1 stop15h 23m

$631

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Tue 11/25

7:01 am-6:20 am

2 stops21h 19m

Buenos Aires Ministro Pistarini

Tue 12/2

7:43 pm-11:39 am

2 stops17h 56m

$636

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Tue 3/24

10:05 am-9:00 am

1 stop21h 55m

Buenos Aires Ministro Pistarini

Tue 4/7

7:45 am-12:07 am

2 stops17h 22m

$640

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Thu 11/20

3:24 pm-7:59 am

1 stop14h 35m

Buenos Aires Ministro Pistarini

Mon 11/24

3:57 am-11:33 pm

1 stop21h 36m

$648

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Sat 11/8

10:10 pm-7:20 am

1 stop31h 10m

Buenos Aires Ministro Pistarini

Sat 11/15

11:55 pm-11:44 pm

1 stop25h 49m

$657

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Sun 1/11

12:35 pm-9:35 am

2 stops19h 00m

Buenos Aires Ministro Pistarini

Tue 1/27

11:00 am-2:51 pm

2 stops29h 51m

$658

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Sun 12/14

10:08 am-7:20 am

1 stop19h 12m

Buenos Aires Ministro Pistarini

Thu 12/25

10:15 pm-4:48 pm

1 stop20h 33m

$697

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How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Buenos Aires Ministro Pistarini Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Buenos Aires Ministro Pistarini Airport?

If you aren’t able to travel during the month of August, then book flights to Buenos Aires Ministro Pistarini Airport from Washington, D.C. Dulles Intl Airport during September instead. Flights to Buenos Aires Ministro Pistarini Airport in September, while not as cheap as those in August, still average around $697.

What is the cheapest day to depart on your flight to Buenos Aires Ministro Pistarini Airport?

Our data shows that Monday is the least expensive day to fly to Buenos Aires Ministro Pistarini Airport. Tickets to fly out on this day can be as low as $963. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Buenos Aires Ministro Pistarini Airport on Saturday is $1,148.

What is the cheapest time of day to depart on your flight to Buenos Aires Ministro Pistarini Airport?

According to our data, the cheapest time of day to fly to Buenos Aires Ministro Pistarini Airport is in the morning. momondo users have found flights departing from Washington, D.C. Dulles Intl Airport to Buenos Aires Ministro Pistarini Airport in the morning for as low as $926. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $1,141 on average. Flights to Buenos Aires Ministro Pistarini Airport from Washington, D.C. Dulles Intl Airport at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

How far in advance should I book a flight to Buenos Aires Ministro Pistarini Airport?

You are more likely to see cheaper flights to Buenos Aires Ministro Pistarini Airport from Washington, D.C. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Buenos Aires Ministro Pistarini Airport for around $878 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Buenos Aires Ministro Pistarini Airport from Washington, D.C. Dulles Intl Airport for as low as $769 on momondo.

Can stopping save me money on Washington, D.C. Dulles Intl Airport to Buenos Aires Ministro Pistarini Airport flights?

You could potentially save up to 5% on your flight if you consider stops on a Washington, D.C. Dulles Intl Airport to Buenos Aires Ministro Pistarini Airport flight.

How have Washington, D.C. Dulles Intl Airport to Buenos Aires Ministro Pistarini Airport flight prices changed over time?

As of October 2025, prices for Washington, D.C. Dulles Intl Airport to Buenos Aires Ministro Pistarini Airport flights are approximately 24% cheaper when compared to flights at the same time last year.

When to book flights from Washington, D.C. Dulles Intl Airport to Buenos Aires Ministro Pistarini Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Dulles Intl Airport to Buenos Aires Ministro Pistarini Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. Dulles Intl Airport to Buenos Aires Ministro Pistarini Airport (IAD to EZE) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Buenos Aires Ministro Pistarini Airport

Direct flights

None
There are no direct flights from Washington, D.C. Dulles Intl Airport to Buenos Aires Ministro Pistarini Airport. There are no popular flight routes from Washington, D.C. Dulles Intl Airport to Buenos Aires Ministro Pistarini Airport.
  • How far is Washington, D.C. Dulles Intl to Buenos Aires Ministro Pistarini by plane?

    The straight-line distance from Washington, D.C. Dulles Intl to Buenos Aires Ministro Pistarini is 5234.8 mi. Flights usually cover this in 13h 15m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Buenos Aires Ministro Pistarini Airport?

    Prices for flights from Washington, D.C. Dulles Intl Airport to Buenos Aires Ministro Pistarini Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Buenos Aires Ministro Pistarini Airport?

  • How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Buenos Aires Ministro Pistarini Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport to Buenos Aires Ministro Pistarini Airport.

  • What documentation or ID do you need to fly to Buenos Aires Ministro Pistarini Airport?

    The travel and health documents you'll need for your trip to Buenos Aires Ministro Pistarini Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Buenos Aires Ministro Pistarini Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Washington, D.C. Dulles Intl Airport to Buenos Aires Ministro Pistarini Airport?

Best airlines flying from Washington, D.C. Dulles Intl Airport to Buenos Aires Ministro Pistarini Airport

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Buenos Aires Ministro Pistarini Airport with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $514Free CancellationRating
7.9
7,973 reviews
Search Delta flights
AviancaPriceFrom $600Free CancellationRating
6.6
2,449 reviews
Search Avianca flights
Copa AirlinesPriceFrom $617Free CancellationRating
7.6
1,546 reviews
Search Copa Airlines flights
United AirlinesPriceFrom $629Free CancellationRating
7.4
8,973 reviews
Search United Airlines flights

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Why should I use momondo to find a flight deal from Washington, D.C. to Buenos Aires?

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Can I find flights from Washington, D.C. to Buenos Aires with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Buenos Aires from Washington, D.C. with this policy.

How can momondo help me find flights from Washington, D.C. to Buenos Aires?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Buenos Aires from Washington, D.C..

I’m not ready to book a flight from Washington, D.C. to Buenos Aires right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Washington, D.C. to Buenos Aires flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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