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Cheap flights from Washington, D.C. Reagan-National Airport to Buenos Aires from $253

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 3/18. 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
10:15 am - 7:20 am
DCA
-
EZE
19h 05m
1 stop
LATAM Airlines Logo
8:55 pm - 12:40 pm
EZE
-
DCA
16h 45m
1 stop
$600LATAM Airlines
Fri, Mar 6 - Mon, Mar 9
LATAM Airlines Logo
3:50 pm - 9:35 am
DCA
-
EZE
16h 45m
2 stops
LATAM Airlines Logo
11:55 pm - 12:40 pm
EZE
-
DCA
13h 45m
1 stop
$601LATAM Airlines
Wed, Mar 11 - Mon, Mar 16
LATAM Airlines Logo
1:45 pm - 9:35 am
DCA
-
EZE
18h 50m
1 stop
LATAM Airlines Logo
11:55 pm - 6:33 pm
EZE
-
DCA
19h 38m
1 stop
$602LATAM Airlines
Wed, Mar 18 - Mon, Mar 23
American Airlines Logo
4:34 pm - 8:50 am
DCA
-
EZE
15h 16m
2 stops
American Airlines Logo
10:20 pm - 12:40 pm
EZE
-
DCA
15h 20m
1 stop
$605American Airlines
Mon, Apr 6 - Wed, Apr 22
United Airlines Logo
6:00 am - 6:20 am
DCA
-
EZE
23h 20m
1 stop
United Airlines Logo
9:00 pm - 11:35 am
EZE
-
DCA
15h 35m
1 stop
$611United Airlines
Wed, Mar 11 - Wed, Apr 8
United Airlines Logo
6:00 am - 6:20 am
DCA
-
EZE
23h 20m
1 stop
United Airlines Logo
10:55 pm - 1:43 pm
EZE
-
DCA
15h 48m
1 stop
$621United Airlines
Sun, Mar 15 - Mon, Mar 23
LATAM Airlines Logo
6:00 pm - 9:00 am
DCA
-
EZE
14h 00m
1 stop
LATAM Airlines Logo
7:04 pm - 5:00 pm
EZE
-
DCA
22h 56m
2 stops
$622LATAM Airlines
Mon, Mar 9 - Wed, Mar 18
American Airlines Logo
5:00 am - 8:05 pm
DCA
-
EZE
14h 05m
2 stops
American Airlines Logo
10:20 pm - 10:38 am
EZE
-
DCA
13h 18m
1 stop
$625American Airlines
Sun, May 31 - Fri, Jun 5
Multiple Airlines Logo
6:00 am - 2:50 pm
DCA
-
AEP
31h 50m
2 stops
Multiple Airlines Logo
8:05 pm - 11:41 pm
AEP
-
DCA
28h 36m
2 stops
$715Multiple Airlines
Fri, Apr 24 - Wed, Apr 29
Multiple Airlines Logo
6:00 am - 10:30 am
DCA
-
AEP
26h 30m
2 stops
Multiple Airlines Logo
8:25 pm - 2:08 pm
AEP
-
DCA
18h 43m
2 stops
$725Multiple Airlines
Mon, Mar 2 - Mon, Mar 9

American Airlines flights from Washington, D.C. Reagan-National Airport to Buenos Aires

Our best American Airlines deals on Washington, D.C. Reagan-National Airport to Buenos Aires flight tickets
American Airlines
Apr 6
DCA4:34 pmWashington, D.C. Reagan-National
15h 16m
2 stops
EZE8:50 amBuenos Aires Ministro Pistarini
Apr 22
EZE10:20 pmBuenos Aires Ministro Pistarini
15h 20m
1 stop
DCA12:40 pmWashington, D.C. Reagan-National
$605
American Airlines
May 31
DCA5:00 amWashington, D.C. Reagan-National
14h 05m
2 stops
EZE8:05 pmBuenos Aires Ministro Pistarini
Jun 5
EZE10:20 pmBuenos Aires Ministro Pistarini
13h 18m
1 stop
DCA10:38 amWashington, D.C. Reagan-National
$625
American Airlines
Mar 26
DCA11:36 amWashington, D.C. Reagan-National
19h 44m
1 stop
EZE8:20 amBuenos Aires Ministro Pistarini
Apr 7
EZE11:35 pmBuenos Aires Ministro Pistarini
14h 05m
1 stop
DCA12:40 pmWashington, D.C. Reagan-National
$682

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

Our best Delta deals on Washington, D.C. Reagan-National Airport to Buenos Aires flight tickets
Delta
Feb 22
DCA6:00 amWashington, D.C. Reagan-National
26h 15m
1 stop
EZE10:15 amBuenos Aires Ministro Pistarini
Mar 2
EZE8:55 pmBuenos Aires Ministro Pistarini
14h 15m
1 stop
DCA9:10 amWashington, D.C. Reagan-National
$642
Delta
May 14
DCA6:00 amWashington, D.C. Reagan-National
26h 45m
1 stop
EZE9:45 amBuenos Aires Ministro Pistarini
May 27
EZE7:45 amBuenos Aires Ministro Pistarini
17h 00m
2 stops
DCA11:45 pmWashington, D.C. Reagan-National
$644
Delta
Mar 10
DCA8:45 pmWashington, D.C. Reagan-National
33h 35m
1 stop
EZE7:20 amBuenos Aires Ministro Pistarini
Mar 17
EZE8:55 pmBuenos Aires Ministro Pistarini
21h 04m
1 stop
DCA4:59 pmWashington, D.C. Reagan-National
$707

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Reagan-National Airport to Buenos Aires 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 9, 2026.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Buenos Aires 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

Fri 3/6

10:15 am-7:20 am

1 stop19h 05m

Buenos Aires Ministro Pistarini

Mon 3/9

8:55 pm-12:40 pm

1 stop16h 45m

$600

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

Wed 3/11

3:50 pm-9:35 am

2 stops16h 45m

Buenos Aires Ministro Pistarini

Mon 3/16

11:55 pm-12:40 pm

1 stop13h 45m

$601

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

Wed 3/18

1:45 pm-9:35 am

1 stop18h 50m

Buenos Aires Ministro Pistarini

Mon 3/23

11:55 pm-6:33 pm

1 stop19h 38m

$602

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

Mon 4/6

4:34 pm-8:50 am

2 stops15h 16m

Buenos Aires Ministro Pistarini

Wed 4/22

10:20 pm-12:40 pm

1 stop15h 20m

$605

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

Wed 3/11

6:00 am-6:20 am

1 stop23h 20m

Buenos Aires Ministro Pistarini

Wed 4/8

9:00 pm-11:35 am

1 stop15h 35m

$611

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

Sun 3/15

6:00 am-6:20 am

1 stop23h 20m

Buenos Aires Ministro Pistarini

Mon 3/23

10:55 pm-1:43 pm

1 stop15h 48m

$621

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

Mon 3/9

6:00 pm-9:00 am

1 stop14h 00m

Buenos Aires Ministro Pistarini

Wed 3/18

7:04 pm-5:00 pm

2 stops22h 56m

$622

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

Sun 5/31

5:00 am-8:05 pm

2 stops14h 05m

Buenos Aires Ministro Pistarini

Fri 6/5

10:20 pm-10:38 am

1 stop13h 18m

$625

Washington, D.C.Buenos Aires

DCA - AEP

DCAAEP

Washington, D.C. Reagan-National

Fri 4/24

6:00 am-2:50 pm

2 stops31h 50m

Buenos Aires Jorge Newbery

Wed 4/29

8:05 pm-11:41 pm

2 stops28h 36m

$715

Washington, D.C.Buenos Aires

DCA - AEP

DCAAEP

Washington, D.C. Reagan-National

Mon 3/2

6:00 am-10:30 am

2 stops26h 30m

Buenos Aires Jorge Newbery

Mon 3/9

8:25 pm-2:08 pm

2 stops18h 43m

$725

Flights are sorted by cheapest round-trip flights first.

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How to get the cheapest flight ticket from Washington, D.C. Reagan-National Airport to Buenos Aires

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?

Can stopping save me money on Washington, D.C. Reagan-National Airport to Buenos Aires 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 flight.

When to book flights from Washington, D.C. Reagan-National Airport to Buenos Aires

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 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 (DCA to BUE) 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

Fastest flight time

13h 13m

Direct flights

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

    The straight-line distance from Washington, D.C. Reagan-National to Buenos Aires is 5210.8 mi. A reasonable flight in good conditions will take 13h 13m.

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

    Prices for flights from Washington, D.C. Reagan-National Airport to Buenos Aires are refreshed on a daily basis.

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

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

    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.

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

    The necessary travel and health documents for your Buenos Aires trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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

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

Compare and see reviews for airlines that fly from Washington, D.C. Reagan-National Airport to Buenos Aires with momondo
Airline
Rating
Free Cancellation
Price
LATAM AirlinesPriceFrom $506Free CancellationRating
7.5
1,919 reviews
Search LATAM Airlines flights
American AirlinesPriceFrom $600Free CancellationRating
7.2
11,260 reviews
Search American Airlines flights
United AirlinesPriceFrom $629Free CancellationRating
7.4
9,267 reviews
Search United Airlines flights
DeltaPriceFrom $639Free CancellationRating
7.9
8,178 reviews
Search Delta 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 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?

If you are not ready to book a flight from Washington, D.C. to Buenos Aires now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Buenos Aires and let you know when they change.

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Find better results for your trip to Argentina

Fly into one of these airports located in Buenos Aires

Airports listed have a maximum distance of 17.0 mi from Buenos Aires
Buenos Aires Jorge Newbery Airport
Buenos Aires Ministro Pistarini Airport