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Cheap flights from Washington, D.C. Reagan-National Airport to Buenos Aires from $269

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 9/7. 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

Delta Logo
2:40 pm - 2:55 pmDCA-EZE
23h 15m2 stops
Delta Logo
8:55 pm - 9:12 amEZE-DCA
14h 17m1 stop
$626Delta
Find Deal
Thu, Oct 30 - Sat, Nov 8
Delta Logo
10:11 am - 9:45 amDCA-EZE
22h 34m1 stop
Delta Logo
8:10 pm - 5:20 pmEZE-DCA
22h 10m1 stop
$627Delta
Find Deal
Wed, Aug 27 - Mon, Sep 8
LATAM Airlines Logo
7:38 pm - 4:05 pmDCA-AEP
19h 27m2 stops
LATAM Airlines Logo
8:10 pm - 2:04 pmAEP-DCA
18h 54m2 stops
$632LATAM Airlines
Find Deal
Sun, Aug 31 - Sun, Sep 7
LATAM Airlines Logo
5:00 pm - 11:45 amDCA-EZE
17h 45m2 stops
LATAM Airlines Logo
7:40 am - 11:42 pmEZE-DCA
17h 02m2 stops
$632LATAM Airlines
Find Deal
Tue, Sep 9 - Tue, Sep 16
LATAM Airlines Logo
2:00 pm - 6:10 amDCA-EZE
15h 10m2 stops
LATAM Airlines Logo
3:50 pm - 12:57 pmEZE-DCA
23h 07m2 stops
$634LATAM Airlines
Find Deal
Thu, Oct 30 - Sat, Nov 8
United Airlines Logo
2:59 pm - 8:00 amDCA-EZE
16h 01m1 stop
United Airlines Logo
9:00 pm - 4:03 pmEZE-DCA
20h 03m1 stop
$639United Airlines
Find Deal
Tue, Aug 19 - Thu, Aug 21
United Airlines Logo
7:59 pm - 8:00 amDCA-EZE
35h 01m1 stop
United Airlines Logo
9:00 pm - 4:03 pmEZE-DCA
20h 03m1 stop
$648United Airlines
Find Deal
Sun, Aug 17 - Wed, Aug 27
Logo
7:40 am - 11:57 amDCA-EZE
27h 17m2 stops
Logo
12:48 pm - 2:04 pmEZE-DCA
50h 16m3 stops
$680
Find Deal
Thu, Aug 28 - Thu, Sep 4
American Airlines Logo
7:20 pm - 10:15 amDCA-EZE
13h 55m1 stop
American Airlines Logo
8:45 pm - 12:59 pmEZE-DCA
17h 14m2 stops
$713American Airlines
Find Deal
Fri, Aug 22 - Tue, Sep 2
Logo
2:59 pm - 2:40 pmDCA-AEP
22h 41m2 stops
Logo
6:00 pm - 11:20 amAEP-DCA
42h 20m3 stops
$1,034
Find Deal
Mon, Aug 11 - Wed, Aug 20

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
Sep 9
DCA5:00 pmWashington, D.C. Reagan-National
17h 45m
2 stops
EZE11:45 amBuenos Aires Ministro Pistarini
Sep 16
EZE7:40 amBuenos Aires Ministro Pistarini
17h 02m
2 stops
DCA11:42 pmWashington, D.C. Reagan-National
$632
Find similar
LATAM Airlines
Oct 30
DCA2:00 pmWashington, D.C. Reagan-National
15h 10m
2 stops
EZE6:10 amBuenos Aires Ministro Pistarini
Nov 8
EZE3:50 pmBuenos Aires Ministro Pistarini
23h 07m
2 stops
DCA12:57 pmWashington, D.C. Reagan-National
$634
Find similar
LATAM Airlines
Aug 28
DCA2:59 pmWashington, D.C. Reagan-National
19h 58m
2 stops
EZE11:57 amBuenos Aires Ministro Pistarini
Sep 7
EZE7:30 amBuenos Aires Ministro Pistarini
17h 16m
2 stops
DCA11:46 pmWashington, D.C. Reagan-National
$636
Find similar

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
Oct 30
DCA2:40 pmWashington, D.C. Reagan-National
23h 15m
2 stops
EZE2:55 pmBuenos Aires Ministro Pistarini
Nov 8
EZE8:55 pmBuenos Aires Ministro Pistarini
14h 17m
1 stop
DCA9:12 amWashington, D.C. Reagan-National
$626
Find similar
Delta
Aug 27
DCA10:11 amWashington, D.C. Reagan-National
22h 34m
1 stop
EZE9:45 amBuenos Aires Ministro Pistarini
Sep 8
EZE8:10 pmBuenos Aires Ministro Pistarini
22h 10m
1 stop
DCA5:20 pmWashington, D.C. Reagan-National
$627
Find similar
Delta
Oct 20
DCA8:59 amWashington, D.C. Reagan-National
23h 46m
1 stop
EZE9:45 amBuenos Aires Ministro Pistarini
Oct 26
EZE10:25 pmBuenos Aires Ministro Pistarini
24h 54m
1 stop
DCA10:19 pmWashington, D.C. Reagan-National
$645
Find similar

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 July 31, 2025.
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

Thu 10/30

2:40 pm-2:55 pm

2 stops23h 15m

Buenos Aires Ministro Pistarini

Sat 11/8

8:55 pm-9:12 am

1 stop14h 17m

$626

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

Wed 8/27

10:11 am-9:45 am

1 stop22h 34m

Buenos Aires Ministro Pistarini

Mon 9/8

8:10 pm-5:20 pm

1 stop22h 10m

$627

Washington, D.C.Buenos Aires

DCA - AEP

DCAAEP

Washington, D.C. Reagan-National

Sun 8/31

7:38 pm-4:05 pm

2 stops19h 27m

Buenos Aires Jorge Newbery

Sun 9/7

8:10 pm-2:04 pm

2 stops18h 54m

$632

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

Tue 9/9

5:00 pm-11:45 am

2 stops17h 45m

Buenos Aires Ministro Pistarini

Tue 9/16

7:40 am-11:42 pm

2 stops17h 02m

$632

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

Thu 10/30

2:00 pm-6:10 am

2 stops15h 10m

Buenos Aires Ministro Pistarini

Sat 11/8

3:50 pm-12:57 pm

2 stops23h 07m

$634

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

Tue 8/19

2:59 pm-8:00 am

1 stop16h 01m

Buenos Aires Ministro Pistarini

Thu 8/21

9:00 pm-4:03 pm

1 stop20h 03m

$639

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

Sun 8/17

7:59 pm-8:00 am

1 stop35h 01m

Buenos Aires Ministro Pistarini

Wed 8/27

9:00 pm-4:03 pm

1 stop20h 03m

$648

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

Thu 8/28

7:40 am-11:57 am

2 stops27h 17m

Buenos Aires Ministro Pistarini

Thu 9/4

12:48 pm-2:04 pm

3 stops50h 16m

$680

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

Fri 8/22

7:20 pm-10:15 am

1 stop13h 55m

Buenos Aires Ministro Pistarini

Tue 9/2

8:45 pm-12:59 pm

2 stops17h 14m

$713

Washington, D.C.Buenos Aires

DCA - AEP

DCAAEP

Washington, D.C. Reagan-National

Mon 8/11

2:59 pm-2:40 pm

2 stops22h 41m

Buenos Aires Jorge Newbery

Wed 8/20

6:00 pm-11:20 am

3 stops42h 20m

$1,034

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest 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

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 April. Flight prices, which tend to average around $697, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of April, then book flights to Buenos Aires from Washington, D.C. Reagan-National Airport during May instead. Flights to Buenos Aires in May, while not as cheap as those in April, still average around $808.

What is the cheapest day to depart on your flight to Buenos Aires?

On average, the least expensive day to fly to Buenos Aires from Washington, D.C. Reagan-National Airport is on a Monday. momondo users have found tickets for Monday departures for as low as $1,031. However, this price may fluctuate depending on the airline, the season, and holidays. 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 on Saturday is $1,094.

What is the cheapest time of day to depart on your flight to Buenos Aires?

Our most recent data shows that the best time of day to fly to Buenos Aires is in the morning. Flights from Washington, D.C. Reagan-National Airport to Buenos Aires during this time can be as low as $969. Try not to purchase tickets at noon because they tend to be around $1,107. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

Best Price Found

$269

Fastest flight time

13h 52m

Direct flights

None

Airports in Buenos Aires

2 airports
The best one-way flight to Buenos Aires from Washington, D.C. Reagan-National Airport in the past 72 hours is $269. The best round-trip flight deal from Washington, D.C. Reagan-National Airport to Buenos Aires found on momondo in the last 72 hours is $626.
The fastest flight from Washington, D.C. Reagan-National Airport to Buenos Aires takes 13h 52m
There are no direct flights from Washington, D.C. Reagan-National Airport to Buenos Aires. Popular non-direct routes for this connection are Washington, D.C. Reagan-National Airport - Buenos Aires Ministro Pistarini Airport and Washington, D.C. Reagan-National Airport - Buenos Aires Jorge Newbery Airport.
There are 2 airports near Buenos Aires: Buenos Aires Ministro Pistarini (EZE), Buenos Aires Jorge Newbery (AEP)
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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 55m.

  • 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
United AirlinesPriceFrom $629Free CancellationRating
7.4
8,900 reviews
Search United Airlines flights
American AirlinesPriceFrom $629Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
LATAM AirlinesPriceFrom $678Free CancellationRating
7.5
1,822 reviews
Search LATAM Airlines flights
DeltaPriceFrom $728Free CancellationRating
8.0
7,981 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