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Cheap flights from Washington, D.C. Dulles Intl Airport to Buenos Aires from $265

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 8/27. 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 (IAD-EZE)

Cheap round-trip flights

Avianca Logo
7:00 am - 12:10 amIAD-EZE
16h 10m1 stop
Avianca Logo
6:50 am - 2:45 amEZE-IAD
20h 55m2 stops
$615Avianca
Find Deal
Sun, Aug 24 - Tue, Sep 9
Avianca Logo
7:00 am - 12:10 amIAD-EZE
16h 10m1 stop
Avianca Logo
1:40 am - 2:00 pmEZE-IAD
13h 20m1 stop
$618Avianca
Find Deal
Sun, Aug 24 - Wed, Aug 27
Avianca Logo
7:00 am - 12:10 amIAD-EZE
16h 10m1 stop
Avianca Logo
6:50 am - 4:20 amEZE-IAD
22h 30m2 stops
$620Avianca
Find Deal
Sun, Aug 24 - Thu, Aug 28
United Airlines Logo
12:50 pm - 8:00 amIAD-EZE
18h 10m1 stop
United Airlines Logo
9:00 pm - 3:03 pmEZE-IAD
19h 03m1 stop
$624United Airlines
Find Deal
Sun, Aug 24 - Tue, Sep 9
Copa Airlines Logo
2:25 am - 12:44 amIAD-EZE
21h 19m1 stop
Copa Airlines Logo
3:48 am - 12:30 amEZE-IAD
21h 42m1 stop
$627Copa Airlines
Find Deal
Sun, Aug 24 - Thu, Sep 4
United Airlines Logo
3:55 pm - 8:00 amIAD-EZE
15h 05m1 stop
United Airlines Logo
9:00 pm - 3:03 pmEZE-IAD
19h 03m1 stop
$629United Airlines
Find Deal
Fri, Aug 22 - Thu, Sep 4
LATAM Airlines Logo
12:13 pm - 11:57 amIAD-EZE
22h 44m2 stops
LATAM Airlines Logo
3:55 am - 12:13 amEZE-IAD
21h 18m2 stops
$632LATAM Airlines
Find Deal
Tue, Aug 19 - Wed, Oct 1
LATAM Airlines Logo
3:00 pm - 9:35 amIAD-EZE
16h 35m2 stops
LATAM Airlines Logo
11:00 am - 12:07 amEZE-IAD
15h 07m2 stops
$637LATAM Airlines
Find Deal
Mon, Dec 1 - Mon, Dec 8
Delta Logo
7:59 pm - 10:15 amIAD-EZE
36h 16m1 stop
Delta Logo
11:55 pm - 11:57 amEZE-IAD
14h 02m1 stop
$645Delta
Find Deal
Sun, Dec 7 - Thu, Dec 11
Copa Airlines Logo
8:59 am - 4:13 amIAD-EZE
18h 14m1 stop
Copa Airlines Logo
3:47 am - 12:30 amEZE-IAD
21h 43m1 stop
$647Copa Airlines
Find Deal
Tue, Aug 19 - Wed, Oct 1

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
Aug 24
IAD7:00 amWashington, D.C. Dulles Intl
16h 10m
1 stop
EZE12:10 amBuenos Aires Ministro Pistarini
Sep 9
EZE6:50 amBuenos Aires Ministro Pistarini
20h 55m
2 stops
IAD2:45 amWashington, D.C. Dulles Intl
$615
Find similar
Avianca
Aug 24
IAD7:00 amWashington, D.C. Dulles Intl
16h 10m
1 stop
EZE12:10 amBuenos Aires Ministro Pistarini
Aug 27
EZE1:40 amBuenos Aires Ministro Pistarini
13h 20m
1 stop
IAD2:00 pmWashington, D.C. Dulles Intl
$618
Find similar
Avianca
Aug 24
IAD7:00 amWashington, D.C. Dulles Intl
16h 10m
1 stop
EZE12:10 amBuenos Aires Ministro Pistarini
Aug 28
EZE6:50 amBuenos Aires Ministro Pistarini
22h 30m
2 stops
IAD4:20 amWashington, D.C. Dulles Intl
$620
Find similar

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
Aug 18
IAD2:25 amWashington, D.C. Dulles Intl
21h 30m
1 stop
EZE12:55 amBuenos Aires Ministro Pistarini
Oct 1
EZE3:47 amBuenos Aires Ministro Pistarini
21h 43m
1 stop
IAD12:30 amWashington, D.C. Dulles Intl
$627
Find similar
Copa Airlines
Aug 19
IAD8:59 amWashington, D.C. Dulles Intl
18h 14m
1 stop
EZE4:13 amBuenos Aires Ministro Pistarini
Oct 1
EZE3:47 amBuenos Aires Ministro Pistarini
21h 43m
1 stop
IAD12:30 amWashington, D.C. Dulles Intl
$647
Find similar
Copa Airlines
Aug 23
IAD2:25 amWashington, D.C. Dulles Intl
18h 43m
1 stop
EZE10:08 pmBuenos Aires Ministro Pistarini
Sep 9
EZE2:33 pmBuenos Aires Ministro Pistarini
34h 57m
1 stop
IAD12:30 amWashington, D.C. Dulles Intl
$659
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 August 6, 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 8/24

7:00 am-12:10 am

1 stop16h 10m

Buenos Aires Ministro Pistarini

Tue 9/9

6:50 am-2:45 am

2 stops20h 55m

$615

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Sun 8/24

7:00 am-12:10 am

1 stop16h 10m

Buenos Aires Ministro Pistarini

Wed 8/27

1:40 am-2:00 pm

1 stop13h 20m

$618

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Sun 8/24

7:00 am-12:10 am

1 stop16h 10m

Buenos Aires Ministro Pistarini

Thu 8/28

6:50 am-4:20 am

2 stops22h 30m

$620

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Sun 8/24

12:50 pm-8:00 am

1 stop18h 10m

Buenos Aires Ministro Pistarini

Tue 9/9

9:00 pm-3:03 pm

1 stop19h 03m

$624

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Sun 8/24

2:25 am-12:44 am

1 stop21h 19m

Buenos Aires Ministro Pistarini

Thu 9/4

3:48 am-12:30 am

1 stop21h 42m

$627

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Fri 8/22

3:55 pm-8:00 am

1 stop15h 05m

Buenos Aires Ministro Pistarini

Thu 9/4

9:00 pm-3:03 pm

1 stop19h 03m

$629

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Tue 8/19

12:13 pm-11:57 am

2 stops22h 44m

Buenos Aires Ministro Pistarini

Wed 10/1

3:55 am-12:13 am

2 stops21h 18m

$632

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Mon 12/1

3:00 pm-9:35 am

2 stops16h 35m

Buenos Aires Ministro Pistarini

Mon 12/8

11:00 am-12:07 am

2 stops15h 07m

$637

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Sun 12/7

7:59 pm-10:15 am

1 stop36h 16m

Buenos Aires Ministro Pistarini

Thu 12/11

11:55 pm-11:57 am

1 stop14h 02m

$645

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Tue 8/19

8:59 am-4:13 am

1 stop18h 14m

Buenos Aires Ministro Pistarini

Wed 10/1

3:47 am-12:30 am

1 stop21h 43m

$647

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Buenos Aires from

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?

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 May instead. Flights to Buenos Aires Ministro Pistarini Airport in May, while not as cheap as those in August, still average around $779.

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 $948 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 $745 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 10% 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 August 2025, prices for Washington, D.C. Dulles Intl Airport to Buenos Aires Ministro Pistarini Airport flights are approximately 19% 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

Best Price Found

$265

Fastest flight time

15h 05m

Direct flights

None
The best one-way flight to Buenos Aires Ministro Pistarini Airport from Washington, D.C. Dulles Intl Airport in the past 72 hours is $265. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to Buenos Aires Ministro Pistarini Airport found on momondo in the last 72 hours is $615.
The fastest flight from Washington, D.C. Dulles Intl Airport to Buenos Aires Ministro Pistarini Airport takes 15h 05m
There are no direct flights from Washington, D.C. Dulles Intl Airport to Buenos Aires Ministro Pistarini Airport. Popular non-direct route for this connection is Washington, D.C. Dulles Intl Airport - 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 15h 05m, 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
Copa AirlinesPriceFrom $549Free CancellationRating
7.5
1,500 reviews
Search Copa Airlines flights
AviancaPriceFrom $605Free CancellationRating
6.7
2,394 reviews
Search Avianca flights
United AirlinesPriceFrom $629Free CancellationRating
7.4
8,917 reviews
Search United Airlines flights
DeltaPriceFrom $629Free CancellationRating
8.0
7,985 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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