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Cheap flights from Washington, D.C. Dulles Intl Airport to Buenos Aires from $303

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 12/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

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.
Copa Airlines Logo
1:13 am - 12:56 am
IAD
-
EZE
21h 43m
1 stop
Copa Airlines Logo
5:30 am - 3:16 am
EZE
-
IAD
23h 46m
1 stop
$655Copa Airlines
Mon, Jan 18 - Tue, Feb 9
United Airlines Logo
1:00 pm - 7:20 am
IAD
-
EZE
16h 20m
1 stop
United Airlines Logo
10:05 pm - 4:06 pm
EZE
-
IAD
20h 01m
1 stop
$667United Airlines
Tue, Jan 19 - Tue, Feb 2
United Airlines Logo
1:00 pm - 9:20 am
IAD
-
EZE
18h 20m
1 stop
United Airlines Logo
10:05 pm - 9:12 pm
EZE
-
IAD
25h 07m
1 stop
$667United Airlines
Sun, Jan 24 - Sun, Feb 7
American Airlines Logo
6:14 am - 8:30 am
IAD
-
EZE
24h 16m
1 stop
American Airlines Logo
11:35 pm - 11:12 pm
EZE
-
IAD
25h 37m
2 stops
$671American Airlines
Wed, Jan 20 - Tue, Feb 2
American Airlines Logo
1:08 pm - 10:15 am
IAD
-
EZE
19h 07m
2 stops
American Airlines Logo
11:35 pm - 11:12 pm
EZE
-
IAD
25h 37m
2 stops
$671American Airlines
Wed, Jan 20 - Tue, Feb 2
Copa Airlines Logo
6:26 am - 2:30 am
IAD
-
EZE
19h 04m
1 stop
Copa Airlines Logo
2:49 pm - 12:32 am
EZE
-
IAD
34h 43m
1 stop
$679Copa Airlines
Mon, Aug 31 - Tue, Sep 15
LATAM Airlines Logo
5:12 pm - 9:40 am
IAD
-
EZE
15h 28m
2 stops
LATAM Airlines Logo
7:21 pm - 5:33 pm
EZE
-
IAD
23h 12m
2 stops
$701LATAM Airlines
Mon, Oct 5 - Tue, Oct 20
Delta Logo
12:29 pm - 9:40 am
IAD
-
EZE
20h 11m
2 stops
Delta Logo
8:10 pm - 12:41 am
EZE
-
IAD
29h 31m
1 stop
$715Delta
Mon, Aug 31 - Tue, Sep 15
LATAM Airlines Logo
6:30 pm - 10:55 am
IAD
-
EZE
14h 25m
1 stop
LATAM Airlines Logo
7:20 am - 12:20 am
EZE
-
IAD
19h 00m
2 stops
$718LATAM Airlines
Tue, Jan 19 - Tue, Feb 9
Delta Logo
5:00 pm - 9:40 am
IAD
-
EZE
14h 40m
1 stop
Delta Logo
11:35 pm - 2:05 pm
EZE
-
IAD
16h 30m
1 stop
$722Delta
Wed, Dec 2 - Sun, Dec 13

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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
Oct 5
IAD5:12 pmWashington, D.C. Dulles Intl
15h 28m
2 stops
EZE9:40 amBuenos Aires Ministro Pistarini
Oct 20
EZE7:21 pmBuenos Aires Ministro Pistarini
23h 12m
2 stops
IAD5:33 pmWashington, D.C. Dulles Intl
$701
LATAM Airlines
Jan 19
IAD4:00 pmWashington, D.C. Dulles Intl
15h 40m
1 stop
EZE9:40 amBuenos Aires Ministro Pistarini
Feb 2
EZE7:20 amBuenos Aires Ministro Pistarini
19h 00m
2 stops
IAD12:20 amWashington, D.C. Dulles Intl
$718
LATAM Airlines
Dec 31
IAD10:55 amWashington, D.C. Dulles Intl
17h 25m
2 stops
EZE6:20 amBuenos Aires Ministro Pistarini
Jan 26
EZE11:35 pmBuenos Aires Ministro Pistarini
17h 06m
1 stop
IAD2:41 pmWashington, D.C. Dulles Intl
$723

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
Jan 18
IAD1:13 amWashington, D.C. Dulles Intl
21h 43m
1 stop
EZE12:56 amBuenos Aires Ministro Pistarini
Feb 9
EZE5:30 amBuenos Aires Ministro Pistarini
23h 46m
1 stop
IAD3:16 amWashington, D.C. Dulles Intl
$655
Copa Airlines
Aug 31
IAD6:26 amWashington, D.C. Dulles Intl
19h 04m
1 stop
EZE2:30 amBuenos Aires Ministro Pistarini
Sep 15
EZE2:49 pmBuenos Aires Ministro Pistarini
34h 43m
1 stop
IAD12:32 amWashington, D.C. Dulles Intl
$679
Copa Airlines
Sep 8
IAD4:34 pmWashington, D.C. Dulles Intl
14h 23m
1 stop
EZE7:57 amBuenos Aires Ministro Pistarini
Sep 17
EZE2:49 pmBuenos Aires Ministro Pistarini
14h 31m
1 stop
IAD4:20 amWashington, D.C. Dulles Intl
$689

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 August 2, 2026.
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

Cheapest round-trip

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Mon 1/18

1:13 am-12:56 am

1 stop21h 43m

Buenos Aires Ministro Pistarini

Tue 2/9

5:30 am-3:16 am

1 stop23h 46m

$655

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Tue 1/19

1:00 pm-7:20 am

1 stop16h 20m

Buenos Aires Ministro Pistarini

Tue 2/2

10:05 pm-4:06 pm

1 stop20h 01m

$667

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Sun 1/24

1:00 pm-9:20 am

1 stop18h 20m

Buenos Aires Ministro Pistarini

Sun 2/7

10:05 pm-9:12 pm

1 stop25h 07m

$667

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Wed 1/20

6:14 am-8:30 am

1 stop24h 16m

Buenos Aires Ministro Pistarini

Tue 2/2

11:35 pm-11:12 pm

2 stops25h 37m

$671

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Wed 1/20

1:08 pm-10:15 am

2 stops19h 07m

Buenos Aires Ministro Pistarini

Tue 2/2

11:35 pm-11:12 pm

2 stops25h 37m

$671

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Mon 8/31

6:26 am-2:30 am

1 stop19h 04m

Buenos Aires Ministro Pistarini

Tue 9/15

2:49 pm-12:32 am

1 stop34h 43m

$679

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Mon 10/5

5:12 pm-9:40 am

2 stops15h 28m

Buenos Aires Ministro Pistarini

Tue 10/20

7:21 pm-5:33 pm

2 stops23h 12m

$701

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Mon 8/31

12:29 pm-9:40 am

2 stops20h 11m

Buenos Aires Ministro Pistarini

Tue 9/15

8:10 pm-12:41 am

1 stop29h 31m

$715

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Tue 1/19

6:30 pm-10:55 am

1 stop14h 25m

Buenos Aires Ministro Pistarini

Tue 2/9

7:20 am-12:20 am

2 stops19h 00m

$718
Quickest round-trip

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Wed 12/2

5:00 pm-9:40 am

1 stop14h 40m

Buenos Aires Ministro Pistarini

Sun 12/13

11:35 pm-2:05 pm

1 stop16h 30m

$722

Flights are sorted by cheapest round-trip flights 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 typical price of a round-trip flight between Washington, D.C. Dulles Intl Airport and Buenos Aires Ministro Pistarini Airport?

Prices are currently low for flights on this route.

Typical prices usually range from $667 to $757.
The lowest price recently found on this route was $655.

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 April instead. Flights to Buenos Aires Ministro Pistarini Airport in April, while not as cheap as those in August, still average around $717.

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport 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 $784 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 $400 on momondo.

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

As of August 2026, prices for Washington, D.C. Dulles Intl Airport to Buenos Aires Ministro Pistarini Airport flights are approximately 4% more expensive 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 16m

Direct flights

None
The fastest flight from Washington, D.C. Dulles Intl Airport to Buenos Aires Ministro Pistarini Airport takes 12h 16m
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

Frequently asked questions about flying 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 12h 16m, 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
United AirlinesPriceFrom $265Free CancellationRating
7.4
10,062 reviews
Search United Airlines flights
DeltaPriceFrom $274Free CancellationRating
7.8
8,493 reviews
Search Delta flights
LATAM AirlinesPriceFrom $317Free CancellationRating
7.4
1,968 reviews
Search LATAM Airlines flights
Copa AirlinesPriceFrom $346Free CancellationRating
7.6
1,564 reviews
Search Copa Airlines flights
AviancaPriceFrom $536Free CancellationRating
6.5
2,523 reviews
Search Avianca flights

Why use momondo?

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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