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Cheap flights from Washington, D.C. Dulles Intl Airport to Buenos Aires from $252

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 4/15. 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.
Avianca Logo
6:50 am - 5:40 am
IAD
-
EZE
21h 50m
1 stop
Avianca Logo
4:50 pm - 5:20 am
EZE
-
IAD
13h 30m
1 stop
$606Avianca
Wed, May 6 - Thu, May 14
Avianca Logo
6:50 am - 5:40 am
IAD
-
EZE
21h 50m
1 stop
Avianca Logo
7:10 am - 2:45 am
EZE
-
IAD
20h 35m
2 stops
$608Avianca
Wed, May 6 - Thu, May 14
Copa Airlines Logo
9:32 am - 2:30 am
IAD
-
EZE
15h 58m
1 stop
Copa Airlines Logo
2:57 pm - 4:22 am
EZE
-
IAD
14h 25m
1 stop
$609Copa Airlines
Mon, Apr 6 - Sat, Apr 18
Avianca Logo
3:35 pm - 5:40 am
IAD
-
EZE
13h 05m
1 stop
Avianca Logo
4:50 pm - 5:20 am
EZE
-
IAD
13h 30m
1 stop
$611Avianca
Tue, May 5 - Tue, May 26
Multiple Airlines Logo
5:27 pm - 9:20 am
IAD
-
EZE
14h 53m
2 stops
Multiple Airlines Logo
4:50 pm - 5:20 am
EZE
-
IAD
13h 30m
1 stop
$612Multiple Airlines
Mon, Apr 13 - Mon, Apr 20
Avianca Logo
6:50 am - 5:40 am
IAD
-
EZE
21h 50m
1 stop
Avianca Logo
7:10 am - 2:45 am
EZE
-
IAD
20h 35m
2 stops
$613Avianca
Tue, May 5 - Tue, May 26
Avianca Logo
6:50 am - 3:40 pm
IAD
-
EZE
31h 50m
1 stop
Avianca Logo
4:50 pm - 5:20 am
EZE
-
IAD
13h 30m
1 stop
$616Avianca
Sat, May 2 - Mon, May 11
United Airlines Logo
6:00 am - 6:20 am
IAD
-
EZE
23h 20m
1 stop
United Airlines Logo
9:05 pm - 11:26 am
EZE
-
IAD
15h 21m
1 stop
$621United Airlines
Sun, Mar 15 - Thu, Mar 26
Avianca Logo
5:35 pm - 3:40 pm
IAD
-
EZE
21h 05m
2 stops
Avianca Logo
4:50 pm - 5:20 am
EZE
-
IAD
13h 30m
1 stop
$624Avianca
Thu, Apr 23 - Wed, Apr 29
American Airlines Logo
5:00 am - 7:10 am
IAD
-
EZE
25h 10m
2 stops
American Airlines Logo
8:40 pm - 7:25 pm
EZE
-
IAD
23h 45m
2 stops
$625American Airlines
Mon, Mar 23 - Sun, May 3

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
Apr 19
IAD3:35 pmWashington, D.C. Dulles Intl
13h 05m
1 stop
EZE5:40 amBuenos Aires Ministro Pistarini
Apr 27
EZE4:50 pmBuenos Aires Ministro Pistarini
13h 30m
1 stop
IAD5:20 amWashington, D.C. Dulles Intl
$606
Avianca
May 6
IAD6:50 amWashington, D.C. Dulles Intl
21h 50m
1 stop
EZE5:40 amBuenos Aires Ministro Pistarini
May 14
EZE7:10 amBuenos Aires Ministro Pistarini
20h 35m
2 stops
IAD2:45 amWashington, D.C. Dulles Intl
$608
Avianca
May 5
IAD3:35 pmWashington, D.C. Dulles Intl
13h 05m
1 stop
EZE5:40 amBuenos Aires Ministro Pistarini
May 26
EZE4:50 pmBuenos Aires Ministro Pistarini
13h 30m
1 stop
IAD5:20 amWashington, D.C. Dulles Intl
$611

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
Mar 9
IAD2:18 amWashington, D.C. Dulles Intl
22h 39m
1 stop
EZE1:57 amBuenos Aires Ministro Pistarini
Mar 17
EZE9:16 amBuenos Aires Ministro Pistarini
19h 59m
1 stop
IAD4:15 amWashington, D.C. Dulles Intl
$609
Copa Airlines
Mar 11
IAD9:29 amWashington, D.C. Dulles Intl
14h 33m
1 stop
EZE1:02 amBuenos Aires Ministro Pistarini
Mar 16
EZE2:43 pmBuenos Aires Ministro Pistarini
25h 17m
1 stop
IAD3:00 pmWashington, D.C. Dulles Intl
$628
Copa Airlines
Mar 10
IAD9:29 amWashington, D.C. Dulles Intl
17h 49m
1 stop
EZE4:18 amBuenos Aires Ministro Pistarini
Mar 17
EZE2:43 pmBuenos Aires Ministro Pistarini
14h 32m
1 stop
IAD4:15 amWashington, D.C. Dulles Intl
$629

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 February 28, 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

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Wed 5/6

6:50 am-5:40 am

1 stop21h 50m

Buenos Aires Ministro Pistarini

Thu 5/14

4:50 pm-5:20 am

1 stop13h 30m

$606

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Wed 5/6

6:50 am-5:40 am

1 stop21h 50m

Buenos Aires Ministro Pistarini

Thu 5/14

7:10 am-2:45 am

2 stops20h 35m

$608

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Mon 4/6

9:32 am-2:30 am

1 stop15h 58m

Buenos Aires Ministro Pistarini

Sat 4/18

2:57 pm-4:22 am

1 stop14h 25m

$609

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Tue 5/5

3:35 pm-5:40 am

1 stop13h 05m

Buenos Aires Ministro Pistarini

Tue 5/26

4:50 pm-5:20 am

1 stop13h 30m

$611

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Mon 4/13

5:27 pm-9:20 am

2 stops14h 53m

Buenos Aires Ministro Pistarini

Mon 4/20

4:50 pm-5:20 am

1 stop13h 30m

$612

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Tue 5/5

6:50 am-5:40 am

1 stop21h 50m

Buenos Aires Ministro Pistarini

Tue 5/26

7:10 am-2:45 am

2 stops20h 35m

$613

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Sat 5/2

6:50 am-3:40 pm

1 stop31h 50m

Buenos Aires Ministro Pistarini

Mon 5/11

4:50 pm-5:20 am

1 stop13h 30m

$616

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Sun 3/15

6:00 am-6:20 am

1 stop23h 20m

Buenos Aires Ministro Pistarini

Thu 3/26

9:05 pm-11:26 am

1 stop15h 21m

$621

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Thu 4/23

5:35 pm-3:40 pm

2 stops21h 05m

Buenos Aires Ministro Pistarini

Wed 4/29

4:50 pm-5:20 am

1 stop13h 30m

$624

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Mon 3/23

5:00 am-7:10 am

2 stops25h 10m

Buenos Aires Ministro Pistarini

Sun 5/3

8:40 pm-7:25 pm

2 stops23h 45m

$625

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 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.

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 $779 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 $619 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 February 2026, prices for Washington, D.C. Dulles Intl Airport to Buenos Aires Ministro Pistarini Airport flights are approximately 41% 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

14h 18m

Direct flights

None
The fastest flight from Washington, D.C. Dulles Intl Airport to Buenos Aires Ministro Pistarini Airport takes 14h 18m
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 14h 18m, 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 $274Free CancellationRating
7.9
8,242 reviews
Search Delta flights
Copa AirlinesPriceFrom $355Free CancellationRating
7.5
1,557 reviews
Search Copa Airlines flights
AviancaPriceFrom $586Free CancellationRating
6.5
2,494 reviews
Search Avianca flights
United AirlinesPriceFrom $629Free CancellationRating
7.4
9,371 reviews
Search United Airlines flights
LATAM AirlinesPriceFrom $637Free CancellationRating
7.5
1,924 reviews
Search LATAM Airlines 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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