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Cheap flights from Washington, D.C. Reagan-National Airport to Buenos Aires from $278

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. Reagan-National Airport to Buenos Aires departing on 12/31. 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. Reagan-National Airport to Buenos Aires

Cheap round-trip flights

Enter your travel dates to find the best prices.
LATAM Airlines Logo
12:05 pm - 9:45 am
DCA
-
EZE
20h 40m1 stop
LATAM Airlines Logo
3:45 pm - 2:05 pm
EZE
-
DCA
23h 20m2 stops
$639LATAM Airlines
Tue, May 19 - Sun, May 24
LATAM Airlines Logo
5:00 pm - 10:15 am
DCA
-
EZE
15h 15m1 stop
LATAM Airlines Logo
8:55 pm - 4:27 pm
EZE
-
DCA
21h 32m2 stops
$640LATAM Airlines
Sun, Feb 1 - Sun, Feb 22
Delta Logo
6:15 pm - 7:20 am
DCA
-
EZE
35h 05m1 stop
Delta Logo
8:55 pm - 2:39 pm
EZE
-
DCA
19h 44m1 stop
$642Delta
Sat, Jan 31 - Mon, Mar 2
United Airlines Logo
8:10 am - 7:20 am
DCA
-
EZE
21h 10m1 stop
United Airlines Logo
11:55 pm - 8:56 pm
EZE
-
DCA
23h 01m1 stop
$651United Airlines
Thu, Feb 26 - Sun, Mar 1
United Airlines Logo
2:45 pm - 9:20 am
DCA
-
EZE
16h 35m1 stop
United Airlines Logo
11:55 pm - 1:39 pm
EZE
-
DCA
15h 44m1 stop
$655United Airlines
Mon, Feb 2 - Sat, Feb 28
LATAM Airlines Logo
12:37 pm - 9:00 am
DCA
-
EZE
18h 23m1 stop
LATAM Airlines Logo
11:55 pm - 6:29 pm
EZE
-
DCA
20h 34m1 stop
$656LATAM Airlines
Fri, Jan 2 - Thu, Jan 22
United Airlines Logo
7:59 pm - 7:20 am
DCA
-
EZE
33h 21m1 stop
United Airlines Logo
11:55 pm - 8:56 pm
EZE
-
DCA
23h 01m1 stop
$663United Airlines
Sun, Feb 1 - Sun, Mar 1
LATAM Airlines Logo
5:05 pm - 10:15 am
DCA
-
EZE
16h 10m1 stop
LATAM Airlines Logo
1:20 pm - 2:08 pm
EZE
-
DCA
25h 48m1 stop
$664LATAM Airlines
Sun, Mar 8 - Mon, Apr 6
LATAM Airlines Logo
12:20 pm - 9:00 am
DCA
-
EZE
18h 40m1 stop
LATAM Airlines Logo
11:55 pm - 9:34 pm
EZE
-
DCA
23h 39m1 stop
$665LATAM Airlines
Wed, Feb 11 - Mon, Feb 16
LATAM Airlines Logo
6:00 pm - 9:00 am
DCA
-
EZE
13h 00m1 stop
LATAM Airlines Logo
9:55 pm - 10:09 pm
EZE
-
DCA
26h 14m2 stops
$667LATAM Airlines
Sat, Jan 17 - Sat, Jan 24

LATAM Airlines flights from Washington, D.C. Reagan-National Airport to Buenos Aires Ministro Pistarini Airport

Our best LATAM Airlines deals on Washington, D.C. Reagan-National Airport to Buenos Aires Ministro Pistarini Airport flight tickets
LATAM Airlines
May 19
DCA12:05 pmWashington, D.C. Reagan-National
20h 40m
1 stop
EZE9:45 amBuenos Aires Ministro Pistarini
May 24
EZE3:45 pmBuenos Aires Ministro Pistarini
23h 20m
2 stops
DCA2:05 pmWashington, D.C. Reagan-National
$639
Find similar
LATAM Airlines
Feb 1
DCA5:00 pmWashington, D.C. Reagan-National
15h 15m
1 stop
EZE10:15 amBuenos Aires Ministro Pistarini
Feb 22
EZE8:55 pmBuenos Aires Ministro Pistarini
21h 32m
2 stops
DCA4:27 pmWashington, D.C. Reagan-National
$640
Find similar
LATAM Airlines
Jan 2
DCA12:37 pmWashington, D.C. Reagan-National
18h 23m
1 stop
EZE9:00 amBuenos Aires Ministro Pistarini
Jan 22
EZE11:55 pmBuenos Aires Ministro Pistarini
20h 34m
1 stop
DCA6:29 pmWashington, D.C. Reagan-National
$656
Find similar

Delta flights from Washington, D.C. Reagan-National Airport to Buenos Aires Ministro Pistarini Airport

Our best Delta deals on Washington, D.C. Reagan-National Airport to Buenos Aires Ministro Pistarini Airport flight tickets
Delta
Jan 31
DCA6:15 pmWashington, D.C. Reagan-National
35h 05m
1 stop
EZE7:20 amBuenos Aires Ministro Pistarini
Mar 2
EZE8:55 pmBuenos Aires Ministro Pistarini
19h 44m
1 stop
DCA2:39 pmWashington, D.C. Reagan-National
$642
Find similar
Delta
Mar 20
DCA6:59 amWashington, D.C. Reagan-National
17h 21m
2 stops
EZE1:20 amBuenos Aires Ministro Pistarini
Apr 1
EZE4:45 pmBuenos Aires Ministro Pistarini
19h 36m
2 stops
DCA11:21 amWashington, D.C. Reagan-National
$689
Find similar
Delta
Jan 31
DCA6:15 pmWashington, D.C. Reagan-National
35h 05m
1 stop
EZE7:20 amBuenos Aires Ministro Pistarini
Mar 1
EZE8:55 pmBuenos Aires Ministro Pistarini
22h 01m
1 stop
DCA4:56 pmWashington, D.C. Reagan-National
$695
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Reagan-National 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 December 20, 2025.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National 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

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

Tue 5/19

12:05 pm-9:45 am

1 stop20h 40m

Buenos Aires Ministro Pistarini

Sun 5/24

3:45 pm-2:05 pm

2 stops23h 20m

$639

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

Sun 2/1

5:00 pm-10:15 am

1 stop15h 15m

Buenos Aires Ministro Pistarini

Sun 2/22

8:55 pm-4:27 pm

2 stops21h 32m

$640

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

Sat 1/31

6:15 pm-7:20 am

1 stop35h 05m

Buenos Aires Ministro Pistarini

Mon 3/2

8:55 pm-2:39 pm

1 stop19h 44m

$642

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

Thu 2/26

8:10 am-7:20 am

1 stop21h 10m

Buenos Aires Ministro Pistarini

Sun 3/1

11:55 pm-8:56 pm

1 stop23h 01m

$651

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

Mon 2/2

2:45 pm-9:20 am

1 stop16h 35m

Buenos Aires Ministro Pistarini

Sat 2/28

11:55 pm-1:39 pm

1 stop15h 44m

$655

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

Fri 1/2

12:37 pm-9:00 am

1 stop18h 23m

Buenos Aires Ministro Pistarini

Thu 1/22

11:55 pm-6:29 pm

1 stop20h 34m

$656

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

Sun 2/1

7:59 pm-7:20 am

1 stop33h 21m

Buenos Aires Ministro Pistarini

Sun 3/1

11:55 pm-8:56 pm

1 stop23h 01m

$663

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

Sun 3/8

5:05 pm-10:15 am

1 stop16h 10m

Buenos Aires Ministro Pistarini

Mon 4/6

1:20 pm-2:08 pm

1 stop25h 48m

$664

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

Wed 2/11

12:20 pm-9:00 am

1 stop18h 40m

Buenos Aires Ministro Pistarini

Mon 2/16

11:55 pm-9:34 pm

1 stop23h 39m

$665

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

Sat 1/17

6:00 pm-9:00 am

1 stop13h 00m

Buenos Aires Ministro Pistarini

Sat 1/24

9:55 pm-10:09 pm

2 stops26h 14m

$667

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. Reagan-National 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. Reagan-National 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 November, then book flights to Buenos Aires Ministro Pistarini Airport from Washington, D.C. Reagan-National Airport during August instead. Flights to Buenos Aires Ministro Pistarini Airport in August, while not as cheap as those in November, still average around $678.

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. Reagan-National 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. Reagan-National Airport at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

Can stopping save me money on Washington, D.C. Reagan-National Airport to Buenos Aires Ministro Pistarini Airport flights?

You could potentially save up to 7% on your flight if you consider stops on a Washington, D.C. Reagan-National Airport to Buenos Aires Ministro Pistarini Airport flight.

When to book flights from Washington, D.C. Reagan-National 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. Reagan-National 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. Reagan-National Airport to Buenos Aires Ministro Pistarini Airport (DCA to EZE) flight deals and tips

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

Fastest flight time

13h 10m

Direct flights

None
The fastest flight from Washington, D.C. Reagan-National Airport to Buenos Aires Ministro Pistarini Airport takes 13h 10m
There are no direct flights from Washington, D.C. Reagan-National Airport to Buenos Aires Ministro Pistarini Airport. There are no popular flight routes from Washington, D.C. Reagan-National Airport to Buenos Aires Ministro Pistarini Airport.
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  • How far is Washington, D.C. Reagan-National to Buenos Aires Ministro Pistarini by plane?

    There are 5222.4 mi between Washington, D.C. Reagan-National and Buenos Aires Ministro Pistarini. By plane, this route typically takes 13h 10m.

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

    Prices for flights from Washington, D.C. Reagan-National Airport to Buenos Aires Ministro Pistarini Airport refresh daily.

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

  • How old do you have to be to fly from Washington, D.C. Reagan-National 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. Reagan-National Airport to Buenos Aires Ministro Pistarini Airport.

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

    The required travel and health documents for your Buenos Aires Ministro Pistarini Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Buenos Aires Ministro Pistarini Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

Best airlines flying from Washington, D.C. Reagan-National Airport to Buenos Aires Ministro Pistarini Airport

Compare and see reviews for airlines that fly from Washington, D.C. Reagan-National Airport to Buenos Aires Ministro Pistarini Airport with momondo
Airline
Rating
Free Cancellation
Price
LATAM AirlinesPriceFrom $506Free CancellationRating
7.5
1,893 reviews
Search LATAM Airlines flights
United AirlinesPriceFrom $629Free CancellationRating
7.4
9,097 reviews
Search United Airlines flights
American AirlinesPriceFrom $629Free CancellationRating
7.2
11,050 reviews
Search American Airlines flights
DeltaPriceFrom $639Free CancellationRating
7.9
8,018 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?

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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 all potential Washington, D.C. to Buenos Aires flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Price alerts on flights to Buenos Aires from Washington, D.C. are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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