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Cheap flights from Buenos Aires to Washington, D.C. from $408

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 12/16. 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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Cheap round-trip flights

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American Airlines Logo
11:00 pm - 12:30 pm
EZE
-
DCA
15h 30m1 stop
American Airlines Logo
11:54 am - 7:15 am
DCA
-
EZE
18h 21m1 stop
$650American Airlines
Tue, Feb 17 - Tue, Mar 17
American Airlines Logo
11:00 pm - 1:44 pm
EZE
-
DCA
16h 44m2 stops
American Airlines Logo
1:30 pm - 10:50 am
DCA
-
EZE
20h 20m1 stop
$654American Airlines
Tue, Feb 17 - Tue, Mar 17
United Airlines Logo
11:55 pm - 3:56 pm
EZE
-
DCA
18h 01m1 stop
United Airlines Logo
11:00 am - 7:20 am
DCA
-
EZE
18h 20m1 stop
$684United Airlines
Sun, Dec 21 - Wed, Jan 14
Delta Logo
8:55 pm - 9:13 am
EZE
-
DCA
14h 18m1 stop
Delta Logo
3:40 pm - 9:00 am
DCA
-
EZE
15h 20m1 stop
$756Delta
Sun, Dec 21 - Wed, Jan 14
LATAM Airlines Logo
8:55 pm - 9:13 am
EZE
-
DCA
14h 18m1 stop
LATAM Airlines Logo
2:35 pm - 9:15 am
DCA
-
EZE
16h 40m2 stops
$765LATAM Airlines
Sun, Dec 21 - Wed, Jan 14
LATAM Airlines Logo
8:05 pm - 2:05 pm
AEP
-
DCA
19h 00m2 stops
LATAM Airlines Logo
2:00 pm - 7:40 am
DCA
-
AEP
16h 40m2 stops
$765LATAM Airlines
Wed, May 6 - Thu, Sep 3
LATAM Airlines Logo
8:55 pm - 9:13 am
EZE
-
DCA
14h 18m1 stop
LATAM Airlines Logo
7:00 am - 7:20 am
DCA
-
EZE
22h 20m2 stops
$769LATAM Airlines
Thu, Dec 25 - Fri, Jan 2
LATAM Airlines Logo
8:05 pm - 2:05 pm
AEP
-
DCA
19h 00m2 stops
LATAM Airlines Logo
2:55 pm - 12:00 pm
DCA
-
AEP
20h 05m2 stops
$797LATAM Airlines
Wed, Apr 22 - Wed, May 6
LATAM Airlines Logo
12:15 pm - 2:00 pm
EZE
-
DCA
27h 45m2 stops
LATAM Airlines Logo
10:59 am - 10:15 am
DCA
-
EZE
21h 16m1 stop
$801LATAM Airlines
Tue, Feb 24 - Sat, Mar 7
LATAM Airlines Logo
7:45 am - 2:00 pm
EZE
-
DCA
32h 15m3 stops
LATAM Airlines Logo
10:59 am - 10:15 am
DCA
-
EZE
21h 16m1 stop
$819LATAM Airlines
Tue, Feb 24 - Sat, Mar 7

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
EZE11:00 pmBuenos Aires Ministro Pistarini
15h 30m
1 stop
DCA12:30 pmWashington, D.C. Reagan-National
Mar 17
DCA11:54 amWashington, D.C. Reagan-National
18h 21m
1 stop
EZE7:15 amBuenos Aires Ministro Pistarini
$650
Find similar
American Airlines
Feb 17
EZE11:00 pmBuenos Aires Ministro Pistarini
16h 44m
2 stops
DCA1:44 pmWashington, D.C. Reagan-National
Mar 17
DCA1:30 pmWashington, D.C. Reagan-National
20h 20m
1 stop
EZE10:50 amBuenos Aires Ministro Pistarini
$654
Find similar
American Airlines
Jan 28
EZE10:10 amBuenos Aires Ministro Pistarini
15h 24m
2 stops
DCA11:34 pmWashington, D.C. Reagan-National
Feb 5
DCA11:50 amWashington, D.C. Reagan-National
18h 35m
1 stop
EZE8:25 amBuenos Aires Ministro Pistarini
$822
Find similar

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

Our best United Airlines deals on Buenos Aires to Washington, D.C. Reagan-National Airport flight tickets
United Airlines
Dec 21
EZE11:55 pmBuenos Aires Ministro Pistarini
18h 01m
1 stop
DCA3:56 pmWashington, D.C. Reagan-National
Jan 14
DCA11:00 amWashington, D.C. Reagan-National
18h 20m
1 stop
EZE7:20 amBuenos Aires Ministro Pistarini
$684
Find similar
United Airlines
Jan 24
EZE10:05 pmBuenos Aires Ministro Pistarini
15h 24m
1 stop
DCA11:29 amWashington, D.C. Reagan-National
Jan 31
DCA3:59 pmWashington, D.C. Reagan-National
37h 21m
1 stop
EZE7:20 amBuenos Aires Ministro Pistarini
$1,043
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 December 11, 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

11:00 pm-12:30 pm

1 stop15h 30m

Washington, D.C. Reagan-National

Tue 3/17

11:54 am-7:15 am

1 stop18h 21m

$650

Buenos AiresWashington, D.C.

EZE - DCA

EZEDCA

Buenos Aires Ministro Pistarini

Tue 2/17

11:00 pm-1:44 pm

2 stops16h 44m

Washington, D.C. Reagan-National

Tue 3/17

1:30 pm-10:50 am

1 stop20h 20m

$654

Buenos AiresWashington, D.C.

EZE - DCA

EZEDCA

Buenos Aires Ministro Pistarini

Sun 12/21

11:55 pm-3:56 pm

1 stop18h 01m

Washington, D.C. Reagan-National

Wed 1/14

11:00 am-7:20 am

1 stop18h 20m

$684

Buenos AiresWashington, D.C.

EZE - DCA

EZEDCA

Buenos Aires Ministro Pistarini

Sun 12/21

8:55 pm-9:13 am

1 stop14h 18m

Washington, D.C. Reagan-National

Wed 1/14

3:40 pm-9:00 am

1 stop15h 20m

$756

Buenos AiresWashington, D.C.

EZE - DCA

EZEDCA

Buenos Aires Ministro Pistarini

Sun 12/21

8:55 pm-9:13 am

1 stop14h 18m

Washington, D.C. Reagan-National

Wed 1/14

2:35 pm-9:15 am

2 stops16h 40m

$765

Buenos AiresWashington, D.C.

AEP - DCA

AEPDCA

Buenos Aires Jorge Newbery

Wed 5/6

8:05 pm-2:05 pm

2 stops19h 00m

Washington, D.C. Reagan-National

Thu 9/3

2:00 pm-7:40 am

2 stops16h 40m

$765

Buenos AiresWashington, D.C.

EZE - DCA

EZEDCA

Buenos Aires Ministro Pistarini

Thu 12/25

8:55 pm-9:13 am

1 stop14h 18m

Washington, D.C. Reagan-National

Fri 1/2

7:00 am-7:20 am

2 stops22h 20m

$769

Buenos AiresWashington, D.C.

AEP - DCA

AEPDCA

Buenos Aires Jorge Newbery

Wed 4/22

8:05 pm-2:05 pm

2 stops19h 00m

Washington, D.C. Reagan-National

Wed 5/6

2:55 pm-12:00 pm

2 stops20h 05m

$797

Buenos AiresWashington, D.C.

EZE - DCA

EZEDCA

Buenos Aires Ministro Pistarini

Tue 2/24

12:15 pm-2:00 pm

2 stops27h 45m

Washington, D.C. Reagan-National

Sat 3/7

10:59 am-10:15 am

1 stop21h 16m

$801

Buenos AiresWashington, D.C.

EZE - DCA

EZEDCA

Buenos Aires Ministro Pistarini

Tue 2/24

7:45 am-2:00 pm

3 stops32h 15m

Washington, D.C. Reagan-National

Sat 3/7

10:59 am-10:15 am

1 stop21h 16m

$819

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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 34% 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

Fastest flight time

13h 42m

Direct flights

None
The fastest flight from Buenos Aires to Washington, D.C. Reagan-National Airport takes 13h 42m
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.

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
11,050 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
Gaithersburg
Reston
Manassas
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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