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Cheap flights from Washington, D.C. Reagan-National Airport to Buenos Aires from $310

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 4/13. 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.
United Airlines Logo
4:34 pm - 8:00 am
DCA
-
EZE
14h 26m
1 stop
United Airlines Logo
9:00 pm - 11:40 am
EZE
-
DCA
15h 40m
1 stop
$601United Airlines
Tue, Apr 28 - Wed, May 6
American Airlines Logo
5:00 am - 8:05 pm
DCA
-
EZE
14h 05m
1 stop
American Airlines Logo
8:35 pm - 12:59 pm
EZE
-
DCA
17h 24m
2 stops
$605American Airlines
Wed, May 27 - Thu, May 28
United Airlines Logo
7:59 pm - 8:00 am
DCA
-
EZE
35h 01m
1 stop
United Airlines Logo
9:00 pm - 4:03 pm
EZE
-
DCA
20h 03m
1 stop
$609United Airlines
Wed, May 20 - Wed, Jun 3
United Airlines Logo
12:40 pm - 8:00 am
DCA
-
EZE
18h 20m
1 stop
United Airlines Logo
9:00 pm - 11:25 am
EZE
-
DCA
15h 25m
1 stop
$619United Airlines
Mon, May 4 - Wed, Aug 12
Delta Logo
9:00 am - 9:45 am
DCA
-
EZE
23h 45m
1 stop
Delta Logo
1:10 pm - 2:03 pm
EZE
-
DCA
25h 53m
1 stop
$627Delta
Mon, Apr 13 - Sun, Apr 26
LATAM Airlines Logo
2:55 pm - 11:30 am
DCA
-
EZE
19h 35m
2 stops
LATAM Airlines Logo
12:15 pm - 2:05 pm
EZE
-
DCA
26h 50m
2 stops
$635LATAM Airlines
Tue, Aug 18 - Sat, Aug 29
LATAM Airlines Logo
5:00 pm - 2:50 pm
DCA
-
AEP
20h 50m
2 stops
LATAM Airlines Logo
7:20 pm - 5:07 pm
AEP
-
DCA
22h 47m
2 stops
$637LATAM Airlines
Tue, May 5 - Tue, May 12
Delta Logo
3:55 pm - 9:20 am
DCA
-
EZE
16h 25m
2 stops
Delta Logo
1:10 pm - 10:56 am
EZE
-
DCA
22h 46m
2 stops
$641Delta
Mon, Aug 10 - Fri, Aug 21
Multiple Airlines Logo
6:00 am - 2:50 pm
DCA
-
AEP
31h 50m
2 stops
Multiple Airlines Logo
3:45 pm - 7:09 pm
AEP
-
DCA
28h 24m
3 stops
$705Multiple Airlines
Wed, May 6 - Wed, May 13
Multiple Airlines Logo
12:27 pm - 2:50 pm
DCA
-
AEP
25h 23m
3 stops
Multiple Airlines Logo
3:45 pm - 10:59 pm
AEP
-
DCA
32h 14m
2 stops
$724Multiple Airlines
Wed, Jul 29 - Tue, Aug 4

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
May 27
DCA5:00 amWashington, D.C. Reagan-National
14h 05m
1 stop
EZE8:05 pmBuenos Aires Ministro Pistarini
May 28
EZE8:35 pmBuenos Aires Ministro Pistarini
17h 24m
2 stops
DCA12:59 pmWashington, D.C. Reagan-National
$605
American Airlines
May 28
DCA6:40 pmWashington, D.C. Reagan-National
15h 25m
1 stop
EZE11:05 amBuenos Aires Ministro Pistarini
Jun 7
EZE8:35 pmBuenos Aires Ministro Pistarini
17h 03m
2 stops
DCA12:38 pmWashington, D.C. Reagan-National
$623
American Airlines
May 19
DCA5:31 pmWashington, D.C. Reagan-National
16h 34m
1 stop
EZE11:05 amBuenos Aires Ministro Pistarini
May 25
EZE9:05 pmBuenos Aires Ministro Pistarini
14h 55m
1 stop
DCA11:00 amWashington, D.C. Reagan-National
$676

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
Aug 18
DCA2:55 pmWashington, D.C. Reagan-National
19h 35m
2 stops
EZE11:30 amBuenos Aires Ministro Pistarini
Aug 29
EZE8:10 pmBuenos Aires Ministro Pistarini
14h 03m
1 stop
DCA9:13 amWashington, D.C. Reagan-National
$635
LATAM Airlines
Mar 24
DCA5:09 pmWashington, D.C. Reagan-National
16h 06m
1 stop
EZE10:15 amBuenos Aires Ministro Pistarini
Apr 15
EZE7:21 pmBuenos Aires Ministro Pistarini
19h 42m
2 stops
DCA2:03 pmWashington, D.C. Reagan-National
$637
LATAM Airlines
Aug 26
DCA2:55 pmWashington, D.C. Reagan-National
17h 25m
1 stop
EZE9:20 amBuenos Aires Ministro Pistarini
Sep 23
EZE8:10 pmBuenos Aires Ministro Pistarini
15h 46m
1 stop
DCA10:56 amWashington, D.C. Reagan-National
$640

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 March 23, 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
Quickest round-trip

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

Tue 4/28

4:34 pm-8:00 am

1 stop14h 26m

Buenos Aires Ministro Pistarini

Wed 5/6

9:00 pm-11:40 am

1 stop15h 40m

$601

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

Wed 5/27

5:00 am-8:05 pm

1 stop14h 05m

Buenos Aires Ministro Pistarini

Thu 5/28

8:35 pm-12:59 pm

2 stops17h 24m

$605

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

Wed 5/20

7:59 pm-8:00 am

1 stop35h 01m

Buenos Aires Ministro Pistarini

Wed 6/3

9:00 pm-4:03 pm

1 stop20h 03m

$609

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

Mon 5/4

12:40 pm-8:00 am

1 stop18h 20m

Buenos Aires Ministro Pistarini

Wed 8/12

9:00 pm-11:25 am

1 stop15h 25m

$619

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

Mon 4/13

9:00 am-9:45 am

1 stop23h 45m

Buenos Aires Ministro Pistarini

Sun 4/26

1:10 pm-2:03 pm

1 stop25h 53m

$627

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

Tue 8/18

2:55 pm-11:30 am

2 stops19h 35m

Buenos Aires Ministro Pistarini

Sat 8/29

12:15 pm-2:05 pm

2 stops26h 50m

$635

Washington, D.C.Buenos Aires

DCA - AEP

DCAAEP

Washington, D.C. Reagan-National

Tue 5/5

5:00 pm-2:50 pm

2 stops20h 50m

Buenos Aires Jorge Newbery

Tue 5/12

7:20 pm-5:07 pm

2 stops22h 47m

$637

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

Mon 8/10

3:55 pm-9:20 am

2 stops16h 25m

Buenos Aires Ministro Pistarini

Fri 8/21

1:10 pm-10:56 am

2 stops22h 46m

$641

Washington, D.C.Buenos Aires

DCA - AEP

DCAAEP

Washington, D.C. Reagan-National

Wed 5/6

6:00 am-2:50 pm

2 stops31h 50m

Buenos Aires Jorge Newbery

Wed 5/13

3:45 pm-7:09 pm

3 stops28h 24m

$705

Washington, D.C.Buenos Aires

DCA - AEP

DCAAEP

Washington, D.C. Reagan-National

Wed 7/29

12:27 pm-2:50 pm

3 stops25h 23m

Buenos Aires Jorge Newbery

Tue 8/4

3:45 pm-10:59 pm

2 stops32h 14m

$724

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 3% 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 10m

Direct flights

None
The fastest flight from Washington, D.C. Reagan-National Airport to Buenos Aires takes 13h 10m
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 10m.

  • 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
7.4
1,911 reviews
Search LATAM Airlines flights
American AirlinesPriceFrom $600Free CancellationRating
7.1
11,486 reviews
Search American Airlines flights
United AirlinesPriceFrom $629Free CancellationRating
7.4
9,463 reviews
Search United Airlines flights
DeltaPriceFrom $639Free CancellationRating
7.9
8,318 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