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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 1/1. 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

Enter your travel dates to find the best prices.
Delta Logo
12:35 pm - 7:20 amIAD-EZE
16h 45m1 stop
Delta Logo
10:25 pm - 11:41 amEZE-IAD
15h 16m1 stop
$640Delta
Find Deal
Sat, Feb 28 - Fri, Mar 6
LATAM Airlines Logo
7:25 pm - 9:45 amIAD-EZE
13h 20m1 stop
LATAM Airlines Logo
7:35 am - 9:10 amEZE-IAD
26h 35m3 stops
$643LATAM Airlines
Find Deal
Sun, Mar 29 - Tue, Apr 28
LATAM Airlines Logo
12:30 pm - 9:35 amIAD-EZE
19h 05m2 stops
LATAM Airlines Logo
11:00 am - 12:12 amEZE-IAD
15h 12m2 stops
$644LATAM Airlines
Find Deal
Sun, Dec 7 - Thu, Dec 11
Delta Logo
10:45 am - 9:45 amIAD-EZE
22h 00m1 stop
Delta Logo
8:10 pm - 12:09 amEZE-IAD
28h 59m1 stop
$645Delta
Find Deal
Sat, Apr 18 - Tue, Apr 28
Avianca Logo
6:45 am - 12:35 amIAD-EZE
16h 50m1 stop
Avianca Logo
4:55 pm - 5:25 amEZE-IAD
13h 30m1 stop
$646Avianca
Find Deal
Fri, Mar 13 - Thu, Mar 19
Delta Logo
7:00 am - 9:45 amIAD-EZE
25h 45m1 stop
Delta Logo
2:25 am - 11:51 amEZE-IAD
34h 26m2 stops
$647Delta
Find Deal
Sun, May 3 - Tue, May 12
Copa Airlines Logo
4:59 am - 10:34 pmIAD-EZE
15h 35m1 stop
Copa Airlines Logo
2:48 pm - 3:13 amEZE-IAD
14h 25m1 stop
$648Copa Airlines
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Wed, Jan 7 - Thu, Jan 29
Avianca Logo
3:25 pm - 5:45 amIAD-EZE
13h 20m1 stop
Avianca Logo
4:45 pm - 5:35 amEZE-IAD
13h 50m1 stop
$649Avianca
Find Deal
Tue, Apr 21 - Tue, May 5
Avianca Logo
5:45 am - 12:10 amIAD-EZE
17h 25m2 stops
Avianca Logo
4:45 pm - 5:35 amEZE-IAD
13h 50m1 stop
$650Avianca
Find Deal
Sat, May 2 - Sat, May 9
Avianca Logo
6:45 am - 12:35 amIAD-EZE
16h 50m1 stop
Avianca Logo
4:55 pm - 5:25 amEZE-IAD
13h 30m1 stop
$653Avianca
Find Deal
Fri, Mar 13 - Sat, Mar 21

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

Our best Delta deals on Washington, D.C. Dulles Intl Airport to Buenos Aires Ministro Pistarini Airport flight tickets
Delta
Feb 28
IAD12:35 pmWashington, D.C. Dulles Intl
16h 45m
1 stop
EZE7:20 amBuenos Aires Ministro Pistarini
Mar 6
EZE10:25 pmBuenos Aires Ministro Pistarini
15h 16m
1 stop
IAD11:41 amWashington, D.C. Dulles Intl
$640
Find similar
Delta
Apr 18
IAD10:45 amWashington, D.C. Dulles Intl
22h 00m
1 stop
EZE9:45 amBuenos Aires Ministro Pistarini
Apr 28
EZE8:10 pmBuenos Aires Ministro Pistarini
28h 59m
1 stop
IAD12:09 amWashington, D.C. Dulles Intl
$645
Find similar
Delta
May 3
IAD7:00 amWashington, D.C. Dulles Intl
25h 45m
1 stop
EZE9:45 amBuenos Aires Ministro Pistarini
May 12
EZE2:25 amBuenos Aires Ministro Pistarini
34h 26m
2 stops
IAD11:51 amWashington, D.C. Dulles Intl
$647
Find similar

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

Our best LATAM Airlines deals on Washington, D.C. Dulles Intl Airport to Buenos Aires Ministro Pistarini Airport flight tickets
LATAM Airlines
Mar 29
IAD7:25 pmWashington, D.C. Dulles Intl
13h 20m
1 stop
EZE9:45 amBuenos Aires Ministro Pistarini
Apr 28
EZE7:35 amBuenos Aires Ministro Pistarini
26h 35m
3 stops
IAD9:10 amWashington, D.C. Dulles Intl
$643
Find similar
LATAM Airlines
Dec 7
IAD12:30 pmWashington, D.C. Dulles Intl
19h 05m
2 stops
EZE9:35 amBuenos Aires Ministro Pistarini
Dec 11
EZE11:00 amBuenos Aires Ministro Pistarini
15h 12m
2 stops
IAD12:12 amWashington, D.C. Dulles Intl
$644
Find similar
LATAM Airlines
Feb 28
IAD7:51 pmWashington, D.C. Dulles Intl
35h 09m
2 stops
EZE9:00 amBuenos Aires Ministro Pistarini
Mar 7
EZE8:00 amBuenos Aires Ministro Pistarini
18h 24m
2 stops
IAD12:24 amWashington, D.C. Dulles Intl
$657
Find similar

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 November 26, 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

Sat 2/28

12:35 pm-7:20 am

1 stop16h 45m

Buenos Aires Ministro Pistarini

Fri 3/6

10:25 pm-11:41 am

1 stop15h 16m

$640

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Sun 3/29

7:25 pm-9:45 am

1 stop13h 20m

Buenos Aires Ministro Pistarini

Tue 4/28

7:35 am-9:10 am

3 stops26h 35m

$643

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Sun 12/7

12:30 pm-9:35 am

2 stops19h 05m

Buenos Aires Ministro Pistarini

Thu 12/11

11:00 am-12:12 am

2 stops15h 12m

$644

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Sat 4/18

10:45 am-9:45 am

1 stop22h 00m

Buenos Aires Ministro Pistarini

Tue 4/28

8:10 pm-12:09 am

1 stop28h 59m

$645

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Fri 3/13

6:45 am-12:35 am

1 stop16h 50m

Buenos Aires Ministro Pistarini

Thu 3/19

4:55 pm-5:25 am

1 stop13h 30m

$646

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Sun 5/3

7:00 am-9:45 am

1 stop25h 45m

Buenos Aires Ministro Pistarini

Tue 5/12

2:25 am-11:51 am

2 stops34h 26m

$647

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Wed 1/7

4:59 am-10:34 pm

1 stop15h 35m

Buenos Aires Ministro Pistarini

Thu 1/29

2:48 pm-3:13 am

1 stop14h 25m

$648

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Tue 4/21

3:25 pm-5:45 am

1 stop13h 20m

Buenos Aires Ministro Pistarini

Tue 5/5

4:45 pm-5:35 am

1 stop13h 50m

$649

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Sat 5/2

5:45 am-12:10 am

2 stops17h 25m

Buenos Aires Ministro Pistarini

Sat 5/9

4:45 pm-5:35 am

1 stop13h 50m

$650

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Fri 3/13

6:45 am-12:35 am

1 stop16h 50m

Buenos Aires Ministro Pistarini

Sat 3/21

4:55 pm-5:25 am

1 stop13h 30m

$653

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 November instead. Flights to Buenos Aires Ministro Pistarini Airport in November, while not as cheap as those in August, still average around $695.

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 $850 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 $722 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 6% 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 November 2025, prices for Washington, D.C. Dulles Intl Airport to Buenos Aires Ministro Pistarini Airport flights are approximately 29% 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

Fastest flight time

12h 35m

Direct flights

None
The fastest flight from Washington, D.C. Dulles Intl Airport to Buenos Aires Ministro Pistarini Airport takes 12h 35m
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.
Search flight deals

  • 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 12h 55m, 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
AviancaPriceFrom $600Free CancellationRating
6.6
2,477 reviews
Search Avianca flights
Copa AirlinesPriceFrom $617Free CancellationRating
7.6
1,569 reviews
Search Copa Airlines flights
United AirlinesPriceFrom $629Free CancellationRating
7.4
9,046 reviews
Search United Airlines flights
DeltaPriceFrom $629Free CancellationRating
7.9
7,998 reviews
Search Delta flights

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Washington, D.C. to Buenos Aires. Millions of users trust and use momondo every year so you are in good hands.

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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