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Cheap flights from Washington, D.C. Reagan-National Airport to Buenos Aires from $304

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 7/15. 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. Reagan-National Airport to Buenos Aires

Cheap round-trip flights

Enter your travel dates to find the best prices.
LATAM Airlines Logo
2:45 pm - 9:40 am
DCA
-
EZE
17h 55m
1 stop
LATAM Airlines Logo
10:40 pm - 2:05 pm
EZE
-
DCA
16h 25m
1 stop
$667LATAM Airlines
vie., jun. 12 - lun., jun. 22
LATAM Airlines Logo
2:45 pm - 9:40 am
DCA
-
EZE
17h 55m
1 stop
LATAM Airlines Logo
1:10 pm - 11:07 am
EZE
-
DCA
22h 57m
2 stops
$671LATAM Airlines
mié., jun. 17 - lun., jun. 22
LATAM Airlines Logo
2:45 pm - 9:40 am
DCA
-
EZE
17h 55m
1 stop
LATAM Airlines Logo
10:40 pm - 2:05 pm
EZE
-
DCA
16h 25m
1 stop
$679LATAM Airlines
lun., jun. 8 - lun., jun. 15
LATAM Airlines Logo
2:45 pm - 9:40 am
DCA
-
EZE
17h 55m
1 stop
LATAM Airlines Logo
8:30 pm - 4:59 pm
EZE
-
DCA
21h 29m
2 stops
$680LATAM Airlines
vie., jun. 12 - mar., jun. 16
LATAM Airlines Logo
4:00 pm - 9:40 am
DCA
-
EZE
16h 40m
2 stops
LATAM Airlines Logo
10:40 pm - 12:42 pm
EZE
-
DCA
15h 02m
2 stops
$683LATAM Airlines
lun., jun. 8 - lun., jun. 15
LATAM Airlines Logo
2:45 pm - 9:40 am
DCA
-
EZE
17h 55m
1 stop
LATAM Airlines Logo
1:10 pm - 11:07 am
EZE
-
DCA
22h 57m
2 stops
$684LATAM Airlines
mar., jun. 9 - mar., jun. 16
LATAM Airlines Logo
2:45 pm - 9:40 am
DCA
-
EZE
17h 55m
1 stop
LATAM Airlines Logo
8:10 pm - 6:30 pm
EZE
-
DCA
23h 20m
1 stop
$688LATAM Airlines
dom., jun. 14 - dom., jun. 21
United Airlines Logo
12:52 pm - 8:00 am
DCA
-
EZE
18h 08m
1 stop
United Airlines Logo
9:00 pm - 11:54 am
EZE
-
DCA
15h 54m
1 stop
$693United Airlines
dom., ago. 9 - jue., ago. 27
Delta Logo
2:55 pm - 2:50 pm
DCA
-
AEP
22h 55m
2 stops
Delta Logo
8:05 pm - 1:56 pm
AEP
-
DCA
18h 51m
2 stops
$721Delta
lun., oct. 12 - sáb., oct. 24
Multiple Airlines Logo
2:55 pm - 2:50 pm
DCA
-
AEP
22h 55m
2 stops
Multiple Airlines Logo
9:05 pm - 10:48 pm
AEP
-
DCA
27h 43m
2 stops
$861Multiple Airlines
mar., oct. 20 - dom., nov. 1

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

Our best LATAM Airlines deals on Washington, D.C. Reagan-National Airport to Buenos Aires flight tickets
LATAM Airlines
Jun 12
DCA2:45 pmWashington, D.C. Reagan-National
17h 55m
1 stop
EZE9:40 amBuenos Aires Ministro Pistarini
Jun 22
EZE10:40 pmBuenos Aires Ministro Pistarini
16h 25m
1 stop
DCA2:05 pmWashington, D.C. Reagan-National
$667
LATAM Airlines
Jun 17
DCA2:45 pmWashington, D.C. Reagan-National
17h 55m
1 stop
EZE9:40 amBuenos Aires Ministro Pistarini
Jun 22
EZE1:10 pmBuenos Aires Ministro Pistarini
22h 57m
2 stops
DCA11:07 amWashington, D.C. Reagan-National
$671
LATAM Airlines
Jun 8
DCA2:45 pmWashington, D.C. Reagan-National
17h 55m
1 stop
EZE9:40 amBuenos Aires Ministro Pistarini
Jun 15
EZE10:40 pmBuenos Aires Ministro Pistarini
16h 25m
1 stop
DCA2:05 pmWashington, D.C. Reagan-National
$679

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

Our best United Airlines deals on Washington, D.C. Reagan-National Airport to Buenos Aires flight tickets
United Airlines
Aug 9
DCA12:52 pmWashington, D.C. Reagan-National
18h 08m
1 stop
EZE8:00 amBuenos Aires Ministro Pistarini
Aug 27
EZE9:00 pmBuenos Aires Ministro Pistarini
15h 54m
1 stop
DCA11:54 amWashington, D.C. Reagan-National
$693
United Airlines
Jun 8
DCA2:55 pmWashington, D.C. Reagan-National
16h 05m
1 stop
EZE8:00 amBuenos Aires Ministro Pistarini
Jun 16
EZE9:00 pmBuenos Aires Ministro Pistarini
20h 03m
1 stop
DCA4:03 pmWashington, D.C. Reagan-National
$707
United Airlines
Jul 6
DCA7:28 pmWashington, D.C. Reagan-National
35h 32m
1 stop
EZE8:00 amBuenos Aires Ministro Pistarini
Jul 14
EZE9:00 pmBuenos Aires Ministro Pistarini
15h 56m
1 stop
DCA11:56 amWashington, D.C. Reagan-National
$716

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 mayo 14, 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

Cheapest round-trip

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

vie. 6/12

2:45 pm-9:40 am

1 stop17h 55m

Buenos Aires Ministro Pistarini

lun. 6/22

10:40 pm-2:05 pm

1 stop16h 25m

$667

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

mié. 6/17

2:45 pm-9:40 am

1 stop17h 55m

Buenos Aires Ministro Pistarini

lun. 6/22

1:10 pm-11:07 am

2 stops22h 57m

$671

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

lun. 6/8

2:45 pm-9:40 am

1 stop17h 55m

Buenos Aires Ministro Pistarini

lun. 6/15

10:40 pm-2:05 pm

1 stop16h 25m

$679

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

vie. 6/12

2:45 pm-9:40 am

1 stop17h 55m

Buenos Aires Ministro Pistarini

mar. 6/16

8:30 pm-4:59 pm

2 stops21h 29m

$680
Quickest round-trip

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

lun. 6/8

4:00 pm-9:40 am

2 stops16h 40m

Buenos Aires Ministro Pistarini

lun. 6/15

10:40 pm-12:42 pm

2 stops15h 02m

$683

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

mar. 6/9

2:45 pm-9:40 am

1 stop17h 55m

Buenos Aires Ministro Pistarini

mar. 6/16

1:10 pm-11:07 am

2 stops22h 57m

$684

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

dom. 6/14

2:45 pm-9:40 am

1 stop17h 55m

Buenos Aires Ministro Pistarini

dom. 6/21

8:10 pm-6:30 pm

1 stop23h 20m

$688

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

dom. 8/9

12:52 pm-8:00 am

1 stop18h 08m

Buenos Aires Ministro Pistarini

jue. 8/27

9:00 pm-11:54 am

1 stop15h 54m

$693

Washington, D.C.Buenos Aires

DCA - AEP

DCAAEP

Washington, D.C. Reagan-National

lun. 10/12

2:55 pm-2:50 pm

2 stops22h 55m

Buenos Aires Jorge Newbery

sáb. 10/24

8:05 pm-1:56 pm

2 stops18h 51m

$721

Washington, D.C.Buenos Aires

DCA - AEP

DCAAEP

Washington, D.C. Reagan-National

mar. 10/20

2:55 pm-2:50 pm

2 stops22h 55m

Buenos Aires Jorge Newbery

dom. 11/1

9:05 pm-10:48 pm

2 stops27h 43m

$861

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest 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?

What is the cheapest month to fly to Buenos Aires?

The cheapest month to fly to Buenos Aires from Washington, D.C. Reagan-National Airport is in November. Flight prices, which tend to average around $275, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of November, then book flights to Buenos Aires from Washington, D.C. Reagan-National Airport during June instead. Flights to Buenos Aires in June, while not as cheap as those in November, still average around $299.

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

You could potentially save up to 2% 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 15m

Direct flights

None
The fastest flight from Washington, D.C. Reagan-National Airport to Buenos Aires takes 13h 15m
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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Frequently asked questions about flying from Washington, D.C. Reagan-National Airport to Buenos Aires

  • 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 15m.

  • 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
DeltaPriceFrom $274Free CancellationRating
7.9
8,455 reviews
Search Delta flights
LATAM AirlinesPriceFrom $506Free CancellationRating
7.4
1,923 reviews
Search LATAM Airlines flights
American AirlinesPriceFrom $599Free CancellationRating
7.1
11,666 reviews
Search American Airlines flights
United AirlinesPriceFrom $629Free CancellationRating
7.4
9,713 reviews
Search United 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 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