Cheap flights from Buenos Aires to Washington, D.C. from $349

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 4/18. 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

Enter your travel dates to find the best prices.
Avianca Logo
7:10 am - 5:20 am
EZE
-
IAD
23h 10m
1 stop
Avianca Logo
5:35 pm - 3:40 pm
IAD
-
EZE
21h 05m
2 stops
$630Avianca
Wed, Apr 8 - Thu, Apr 23
Avianca Logo
4:50 pm - 2:15 pm
EZE
-
IAD
22h 25m
1 stop
Avianca Logo
3:35 pm - 3:40 pm
IAD
-
EZE
23h 05m
1 stop
$639Avianca
Mon, Apr 20 - Sat, Apr 25
Avianca Logo
7:10 am - 2:45 am
EZE
-
IAD
20h 35m
2 stops
Avianca Logo
6:50 am - 5:40 am
IAD
-
EZE
21h 50m
1 stop
$640Avianca
Wed, May 13 - Mon, May 18
American Airlines Logo
9:25 pm - 9:09 am
EZE
-
DCA
13h 44m
1 stop
American Airlines Logo
5:58 pm - 8:00 am
DCA
-
EZE
13h 02m
1 stop
$671American Airlines
Tue, Feb 17 - Tue, Mar 17
American Airlines Logo
10:25 pm - 4:34 pm
EZE
-
IAD
20h 09m
1 stop
American Airlines Logo
6:00 am - 8:20 am
IAD
-
EZE
25h 20m
1 stop
$671American Airlines
Tue, Feb 17 - Tue, Mar 17
Copa Airlines Logo
12:10 am - 3:17 pm
EZE
-
BWI
16h 07m
1 stop
Copa Airlines Logo
4:36 pm - 7:55 am
BWI
-
EZE
14h 19m
1 stop
$694Copa Airlines
Thu, May 14 - Fri, May 29
Delta Logo
4:05 am - 10:36 pm
EZE
-
DCA
19h 31m
2 stops
Delta Logo
5:09 pm - 10:15 am
DCA
-
EZE
16h 06m
1 stop
$697Delta
Wed, Mar 18 - Wed, Mar 25
Delta Logo
11:55 pm - 3:35 pm
EZE
-
BWI
16h 40m
1 stop
Delta Logo
4:43 pm - 9:45 am
BWI
-
EZE
16h 02m
1 stop
$697Delta
Thu, Mar 19 - Mon, Apr 6
LATAM Airlines Logo
7:04 pm - 5:00 pm
EZE
-
DCA
22h 56m
2 stops
LATAM Airlines Logo
7:43 pm - 9:45 am
DCA
-
EZE
13h 02m
1 stop
$706LATAM Airlines
Thu, Mar 19 - Mon, Apr 6
LATAM Airlines Logo
7:45 am - 12:53 am
EZE
-
BWI
18h 08m
2 stops
LATAM Airlines Logo
2:38 pm - 9:45 am
BWI
-
EZE
18h 07m
1 stop
$706LATAM Airlines
Thu, Mar 19 - Mon, Apr 6

Avianca flights from Buenos Aires to Washington, D.C.

Our best Avianca deals on Buenos Aires to Washington, D.C. flight tickets
Avianca
Apr 8
EZE7:10 amBuenos Aires Ministro Pistarini
23h 10m
1 stop
IAD5:20 amWashington, D.C. Dulles Intl
Apr 23
IAD5:35 pmWashington, D.C. Dulles Intl
21h 05m
2 stops
EZE3:40 pmBuenos Aires Ministro Pistarini
$630
Avianca
Apr 20
EZE4:50 pmBuenos Aires Ministro Pistarini
22h 25m
1 stop
IAD2:15 pmWashington, D.C. Dulles Intl
Apr 25
IAD3:35 pmWashington, D.C. Dulles Intl
23h 05m
1 stop
EZE3:40 pmBuenos Aires Ministro Pistarini
$639
Avianca
May 13
EZE7:10 amBuenos Aires Ministro Pistarini
20h 35m
2 stops
IAD2:45 amWashington, D.C. Dulles Intl
May 18
IAD6:50 amWashington, D.C. Dulles Intl
21h 50m
1 stop
EZE5:40 amBuenos Aires Ministro Pistarini
$640

LATAM Airlines flights from Buenos Aires to Washington, D.C.

Our best LATAM Airlines deals on Buenos Aires to Washington, D.C. flight tickets
LATAM Airlines
Mar 18
EZE7:04 pmBuenos Aires Ministro Pistarini
18h 35m
2 stops
IAD12:39 pmWashington, D.C. Dulles Intl
Mar 25
IAD1:19 pmWashington, D.C. Dulles Intl
18h 56m
2 stops
EZE9:15 amBuenos Aires Ministro Pistarini
$706
LATAM Airlines
Mar 18
EZE7:04 pmBuenos Aires Ministro Pistarini
16h 47m
2 stops
BWI10:51 amBaltimore/Washington
Mar 25
BWI4:43 pmBaltimore/Washington
15h 52m
2 stops
EZE9:35 amBuenos Aires Ministro Pistarini
$710
LATAM Airlines
Apr 8
EZE7:35 amBuenos Aires Ministro Pistarini
18h 18m
2 stops
BWI12:53 amBaltimore/Washington
Apr 23
BWI11:51 amBaltimore/Washington
17h 29m
2 stops
EZE6:20 amBuenos Aires Ministro Pistarini
$727

momondo Fare Finder

 
Customize your flight search to find flights from Buenos Aires to Washington, D.C. 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 February 1, 2026.
Use the filters below to find and compare flights from Buenos Aires to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

Wed 4/8

7:10 am-5:20 am

1 stop23h 10m

Washington, D.C. Dulles Intl

Thu 4/23

5:35 pm-3:40 pm

2 stops21h 05m

$630

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

Mon 4/20

4:50 pm-2:15 pm

1 stop22h 25m

Washington, D.C. Dulles Intl

Sat 4/25

3:35 pm-3:40 pm

1 stop23h 05m

$639

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

Wed 5/13

7:10 am-2:45 am

2 stops20h 35m

Washington, D.C. Dulles Intl

Mon 5/18

6:50 am-5:40 am

1 stop21h 50m

$640

Buenos AiresWashington, D.C.

EZE - DCA

EZEDCA

Buenos Aires Ministro Pistarini

Tue 2/17

9:25 pm-9:09 am

1 stop13h 44m

Washington, D.C. Reagan-National

Tue 3/17

5:58 pm-8:00 am

1 stop13h 02m

$671

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

Tue 2/17

10:25 pm-4:34 pm

1 stop20h 09m

Washington, D.C. Dulles Intl

Tue 3/17

6:00 am-8:20 am

1 stop25h 20m

$671

Buenos AiresBaltimore

EZE - BWI

EZEBWI

Buenos Aires Ministro Pistarini

Thu 5/14

12:10 am-3:17 pm

1 stop16h 07m

Baltimore/Washington

Fri 5/29

4:36 pm-7:55 am

1 stop14h 19m

$694

Buenos AiresWashington, D.C.

EZE - DCA

EZEDCA

Buenos Aires Ministro Pistarini

Wed 3/18

4:05 am-10:36 pm

2 stops19h 31m

Washington, D.C. Reagan-National

Wed 3/25

5:09 pm-10:15 am

1 stop16h 06m

$697

Buenos AiresBaltimore

EZE - BWI

EZEBWI

Buenos Aires Ministro Pistarini

Thu 3/19

11:55 pm-3:35 pm

1 stop16h 40m

Baltimore/Washington

Mon 4/6

4:43 pm-9:45 am

1 stop16h 02m

$697

Buenos AiresWashington, D.C.

EZE - DCA

EZEDCA

Buenos Aires Ministro Pistarini

Thu 3/19

7:04 pm-5:00 pm

2 stops22h 56m

Washington, D.C. Reagan-National

Mon 4/6

7:43 pm-9:45 am

1 stop13h 02m

$706

Buenos AiresBaltimore

EZE - BWI

EZEBWI

Buenos Aires Ministro Pistarini

Thu 3/19

7:45 am-12:53 am

2 stops18h 08m

Baltimore/Washington

Mon 4/6

2:38 pm-9:45 am

1 stop18h 07m

$706

Flights are sorted by cheapest round-trip flights first.

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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.

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 month to fly to Washington, D.C.?

The month of August is, on average, the cheapest month to fly to Washington, D.C. from Buenos Aires, with most prices found around $749. If you’re not able to fly to Washington, D.C. in August, then September is your next best option. Flight prices from Buenos Aires to Washington, D.C. during September average around $755.

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

You could potentially save up to 5% on your flight if you consider stops on a Buenos Aires to Washington, D.C. flight.

How have Buenos Aires to Washington, D.C. flight prices changed over time?

As of February 2026, prices for Buenos Aires to Washington, D.C. flights are approximately 5% more expensive when compared to flights at the same time last year.

When to book flights from Buenos Aires to Washington, D.C.

Are you open to changing your travel dates? Check out the ideal times to fly from Buenos Aires to Washington, D.C. 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. (BUE to WAS) flight deals and tips

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

Fastest flight time

13h 30m

Direct flights

None
The fastest flight from Buenos Aires to Washington, D.C. takes 13h 30m
There are no direct flights from Buenos Aires to Washington, D.C.. There are no popular flight routes from Buenos Aires to Washington, D.C..
  • How far is Buenos Aires to Washington, D.C. by plane?

    Buenos Aires and Washington, D.C. are 5214.3 mi apart from one another. In terms of flight time, this usually takes a little over 13h 30m.

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

    Prices for flights from Buenos Aires to Washington, D.C. are refreshed on a daily basis.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Buenos Aires to Washington, D.C..

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

    The travel and health documents required for your trip to Washington, D.C. can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington, D.C.. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Buenos Aires to Washington, D.C.?

Best airlines flying from Buenos Aires to Washington, D.C.

Compare and see reviews for airlines that fly from Buenos Aires to Washington, D.C. with momondo
Airline
Rating
Free Cancellation
Price
AviancaPriceFrom $252Free CancellationRating
6.6
2,492 reviews
Search Avianca flights
DeltaPriceFrom $270Free CancellationRating
7.9
8,128 reviews
Search Delta flights
Copa AirlinesPriceFrom $378Free CancellationRating
7.5
1,559 reviews
Search Copa Airlines flights
American AirlinesPriceFrom $673Free CancellationRating
7.2
11,210 reviews
Search American Airlines 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
Waldorf
Woodbridge
Tysons
Laurel
Colonial Beach
Silver Spring
Towson
Fredericksburg
Gaithersburg
Rockville
Manassas
Springfield
Fairfax
Linthicum Heights
Bethesda
Reston

Why use momondo?

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

Finding the right flight to Washington, D.C. from Buenos Aires is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Washington, D.C. quick and easy, saving you time and money.

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

momondo does allow users to show only those flights to Washington, D.C. from Buenos Aires which offer a flexible booking policy as well as other useful filters and features.

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.

An easier way to manage your Washington, D.C. trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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1 adult
Tue 3/3
Tue 3/10

Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.