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Cheap flights from Buenos Aires to Washington, D.C. from $428

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Buenos Aires to Washington, D.C. departing on 11/21. 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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American Airlines Logo
10:25 pm - 4:38 pmEZE-DCA
20h 13m1 stop
American Airlines Logo
1:45 pm - 10:15 amDCA-EZE
19h 30m1 stop
$690American Airlines
Find Deal
Tue, Feb 17 - Tue, Mar 17
American Airlines Logo
11:59 pm - 9:14 pmEZE-DCA
23h 15m1 stop
American Airlines Logo
5:30 pm - 10:15 amDCA-EZE
15h 45m2 stops
$694American Airlines
Find Deal
Tue, Feb 17 - Tue, Mar 17
Delta Logo
11:55 pm - 7:09 pmEZE-DCA
21h 14m1 stop
Delta Logo
1:40 pm - 7:20 amDCA-EZE
15h 40m1 stop
$717Delta
Find Deal
Sun, Dec 21 - Wed, Jan 14
Delta Logo
11:55 pm - 5:49 pmEZE-DCA
19h 54m1 stop
Delta Logo
11:10 am - 10:15 amDCA-EZE
21h 05m1 stop
$726Delta
Find Deal
Sun, Dec 21 - Wed, Jan 28
LATAM Airlines Logo
6:00 pm - 7:15 pmEZE-DCA
26h 15m2 stops
LATAM Airlines Logo
6:25 pm - 11:48 amDCA-EZE
16h 23m2 stops
$730LATAM Airlines
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Thu, Apr 9 - Mon, Apr 13
LATAM Airlines Logo
2:55 pm - 10:56 amAEP-DCA
21h 01m2 stops
LATAM Airlines Logo
2:55 pm - 2:40 pmDCA-AEP
22h 45m2 stops
$730LATAM Airlines
Find Deal
Thu, Apr 9 - Mon, Apr 13
LATAM Airlines Logo
11:00 am - 2:01 pmEZE-DCA
29h 01m1 stop
LATAM Airlines Logo
2:25 pm - 9:35 amDCA-EZE
17h 10m1 stop
$760LATAM Airlines
Find Deal
Wed, Dec 3 - Wed, Dec 10
LATAM Airlines Logo
9:55 pm - 10:08 pmEZE-DCA
26h 13m2 stops
LATAM Airlines Logo
2:25 pm - 9:35 amDCA-EZE
17h 10m1 stop
$763LATAM Airlines
Find Deal
Wed, Dec 3 - Wed, Dec 10
LATAM Airlines Logo
12:00 pm - 2:06 pmEZE-DCA
27h 06m1 stop
LATAM Airlines Logo
8:30 pm - 9:15 amDCA-EZE
35h 45m2 stops
$767LATAM Airlines
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Thu, Apr 9 - Mon, Apr 13
United Airlines Logo
11:55 pm - 1:43 pmEZE-DCA
15h 48m1 stop
United Airlines Logo
8:15 am - 7:20 amDCA-EZE
21h 05m1 stop
$769United Airlines
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Mon, Dec 22 - Sun, Feb 1

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

Our best LATAM Airlines deals on Buenos Aires to Washington, D.C. Reagan-National Airport flight tickets
LATAM Airlines
Apr 9
EZE6:00 pmBuenos Aires Ministro Pistarini
26h 15m
2 stops
DCA7:15 pmWashington, D.C. Reagan-National
Apr 13
DCA6:25 pmWashington, D.C. Reagan-National
16h 23m
2 stops
EZE11:48 amBuenos Aires Ministro Pistarini
$730
Find similar
LATAM Airlines
Feb 17
EZE8:55 pmBuenos Aires Ministro Pistarini
21h 34m
2 stops
DCA4:29 pmWashington, D.C. Reagan-National
Mar 17
DCA3:55 pmWashington, D.C. Reagan-National
16h 40m
2 stops
EZE9:35 amBuenos Aires Ministro Pistarini
$731
Find similar
LATAM Airlines
Dec 3
EZE11:00 amBuenos Aires Ministro Pistarini
29h 01m
1 stop
DCA2:01 pmWashington, D.C. Reagan-National
Dec 10
DCA2:25 pmWashington, D.C. Reagan-National
17h 10m
1 stop
EZE9:35 amBuenos Aires Ministro Pistarini
$760
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American Airlines flights from Buenos Aires to Washington, D.C. Reagan-National Airport

Our best American Airlines deals on Buenos Aires to Washington, D.C. Reagan-National Airport flight tickets
American Airlines
Feb 17
EZE11:20 pmBuenos Aires Ministro Pistarini
21h 37m
1 stop
DCA6:57 pmWashington, D.C. Reagan-National
Mar 17
DCA11:51 amWashington, D.C. Reagan-National
21h 24m
1 stop
EZE10:15 amBuenos Aires Ministro Pistarini
$690
Find similar
American Airlines
Feb 17
EZE11:59 pmBuenos Aires Ministro Pistarini
15h 55m
2 stops
DCA1:54 pmWashington, D.C. Reagan-National
Mar 17
DCA11:51 amWashington, D.C. Reagan-National
18h 24m
1 stop
EZE7:15 amBuenos Aires Ministro Pistarini
$694
Find similar
American Airlines
Nov 23
EZE11:20 pmBuenos Aires Ministro Pistarini
21h 39m
1 stop
DCA6:59 pmWashington, D.C. Reagan-National
Dec 2
DCA6:00 pmWashington, D.C. Reagan-National
14h 15m
1 stop
EZE10:15 amBuenos Aires Ministro Pistarini
$707
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Buenos Aires to Washington, D.C. Reagan-National 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 November 17, 2025.
Use the filters below to find and compare flights from Buenos Aires to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Buenos AiresWashington, D.C.

EZE - DCA

EZEDCA

Buenos Aires Ministro Pistarini

Tue 2/17

10:25 pm-4:38 pm

1 stop20h 13m

Washington, D.C. Reagan-National

Tue 3/17

1:45 pm-10:15 am

1 stop19h 30m

$690

Buenos AiresWashington, D.C.

EZE - DCA

EZEDCA

Buenos Aires Ministro Pistarini

Tue 2/17

11:59 pm-9:14 pm

1 stop23h 15m

Washington, D.C. Reagan-National

Tue 3/17

5:30 pm-10:15 am

2 stops15h 45m

$694

Buenos AiresWashington, D.C.

EZE - DCA

EZEDCA

Buenos Aires Ministro Pistarini

Sun 12/21

11:55 pm-7:09 pm

1 stop21h 14m

Washington, D.C. Reagan-National

Wed 1/14

1:40 pm-7:20 am

1 stop15h 40m

$717

Buenos AiresWashington, D.C.

EZE - DCA

EZEDCA

Buenos Aires Ministro Pistarini

Sun 12/21

11:55 pm-5:49 pm

1 stop19h 54m

Washington, D.C. Reagan-National

Wed 1/28

11:10 am-10:15 am

1 stop21h 05m

$726

Buenos AiresWashington, D.C.

EZE - DCA

EZEDCA

Buenos Aires Ministro Pistarini

Thu 4/9

6:00 pm-7:15 pm

2 stops26h 15m

Washington, D.C. Reagan-National

Mon 4/13

6:25 pm-11:48 am

2 stops16h 23m

$730

Buenos AiresWashington, D.C.

AEP - DCA

AEPDCA

Buenos Aires Jorge Newbery

Thu 4/9

2:55 pm-10:56 am

2 stops21h 01m

Washington, D.C. Reagan-National

Mon 4/13

2:55 pm-2:40 pm

2 stops22h 45m

$730

Buenos AiresWashington, D.C.

EZE - DCA

EZEDCA

Buenos Aires Ministro Pistarini

Wed 12/3

11:00 am-2:01 pm

1 stop29h 01m

Washington, D.C. Reagan-National

Wed 12/10

2:25 pm-9:35 am

1 stop17h 10m

$760

Buenos AiresWashington, D.C.

EZE - DCA

EZEDCA

Buenos Aires Ministro Pistarini

Wed 12/3

9:55 pm-10:08 pm

2 stops26h 13m

Washington, D.C. Reagan-National

Wed 12/10

2:25 pm-9:35 am

1 stop17h 10m

$763

Buenos AiresWashington, D.C.

EZE - DCA

EZEDCA

Buenos Aires Ministro Pistarini

Thu 4/9

12:00 pm-2:06 pm

1 stop27h 06m

Washington, D.C. Reagan-National

Mon 4/13

8:30 pm-9:15 am

2 stops35h 45m

$767

Buenos AiresWashington, D.C.

EZE - DCA

EZEDCA

Buenos Aires Ministro Pistarini

Mon 12/22

11:55 pm-1:43 pm

1 stop15h 48m

Washington, D.C. Reagan-National

Sun 2/1

8:15 am-7:20 am

1 stop21h 05m

$769

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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Buenos Aires to Washington, D.C. Reagan-National 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 cheapest day to depart on your flight to Washington, D.C. Reagan-National Airport?

The cheapest day to depart from Buenos Aires to Washington, D.C. Reagan-National Airport is on a Friday. Travelers who choose to depart for Washington, D.C. Reagan-National Airport on a Friday will often find tickets for as low as $1,051. Flights from Buenos Aires to Washington, D.C. Reagan-National Airport on a Saturday will generally be more expensive and average around $1,578. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

You could potentially save up to 27% on your flight if you consider stops on a Buenos Aires to Washington, D.C. Reagan-National Airport flight.

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

Are you open to changing your travel dates? Check out the ideal times to fly from Buenos Aires to Washington, D.C. Reagan-National Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Buenos Aires to Washington, D.C. Reagan-National Airport (BUE to DCA) flight deals and tips

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

Direct flights

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

    The straight-line distance from Buenos Aires to Washington, D.C. Reagan-National is 5210.8 mi. 13h 42m is a normal flight duration for this route.

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

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

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Buenos Aires to Washington, D.C. Reagan-National Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Reagan-National Airport?

    The necessary travel and health documents for your Washington, D.C. Reagan-National Airport 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 Buenos Aires to Washington, D.C. Reagan-National Airport?

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

Compare and see reviews for airlines that fly from Buenos Aires to Washington, D.C. Reagan-National Airport with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $673Free CancellationRating
7.2
11,048 reviews
Search American Airlines flights
DeltaPriceFrom $759Free CancellationRating
7.9
8,008 reviews
Search Delta flights

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Gettysburg
Arlington
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Towson
Rockville
Reston
Manassas
Gaithersburg
Fairfax
Glen Burnie
Linthicum Heights
Springfield

Why use momondo?

Why should I use momondo to find a flight deal from Buenos Aires to Washington, D.C.?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Buenos Aires to Washington, D.C.. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Buenos Aires to Washington, D.C. with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Buenos Aires to Washington, D.C. flights to just show those with flexible booking policies.

How can momondo help me find flights from Buenos Aires to Washington, D.C.?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Buenos Aires to Washington, D.C..

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

Yes momondo offers price alerts on flights to Washington, D.C. from Buenos Aires. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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