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Cheap flights from Buenos Aires to Washington, D.C. from $411

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 3/22. 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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Avianca Logo
4:45 pm - 5:35 am
EZE
-
IAD
13h 50m1 stop
Avianca Logo
4:05 am - 12:10 am
IAD
-
EZE
19h 05m2 stops
$635Avianca
Tue, Apr 14 - Thu, May 7
Avianca Logo
4:45 pm - 3:45 pm
EZE
-
IAD
24h 00m2 stops
Avianca Logo
4:05 am - 12:10 am
IAD
-
EZE
19h 05m2 stops
$637Avianca
Tue, Apr 14 - Thu, May 7
Avianca Logo
7:30 am - 2:40 am
EZE
-
IAD
20h 10m2 stops
Avianca Logo
3:35 pm - 5:50 am
IAD
-
EZE
13h 15m1 stop
$644Avianca
Fri, Mar 13 - Mon, Mar 16
Avianca Logo
7:30 am - 2:40 am
EZE
-
IAD
20h 10m2 stops
Avianca Logo
5:30 am - 5:50 am
IAD
-
EZE
23h 20m2 stops
$645Avianca
Fri, Mar 13 - Mon, Mar 16
Avianca Logo
4:45 pm - 5:35 am
EZE
-
IAD
13h 50m1 stop
Avianca Logo
4:05 am - 12:10 am
IAD
-
EZE
19h 05m2 stops
$653Avianca
Sat, May 9 - Sat, May 23
American Airlines Logo
10:25 pm - 4:31 pm
EZE
-
IAD
20h 06m1 stop
American Airlines Logo
11:24 am - 10:50 am
IAD
-
EZE
22h 26m2 stops
$654American Airlines
Tue, Feb 17 - Tue, Mar 17
Avianca Logo
4:45 pm - 5:35 am
EZE
-
IAD
13h 50m1 stop
Avianca Logo
3:25 pm - 5:45 am
IAD
-
EZE
13h 20m1 stop
$659Avianca
Tue, Apr 14 - Thu, May 7
LATAM Airlines Logo
8:05 pm - 7:16 pm
AEP
-
IAD
24h 11m2 stops
LATAM Airlines Logo
7:59 pm - 4:00 pm
IAD
-
AEP
19h 01m2 stops
$737LATAM Airlines
Mon, May 11 - Fri, May 22
Multiple Airlines Logo
7:00 am - 5:35 am
AEP
-
IAD
23h 35m1 stop
Multiple Airlines Logo
7:59 pm - 7:40 am
IAD
-
AEP
34h 41m2 stops
$761Multiple Airlines
Tue, Apr 14 - Thu, May 7
Multiple Airlines Logo
7:06 pm - 4:22 am
AEP
-
IAD
34h 16m2 stops
Multiple Airlines Logo
2:07 pm - 4:00 pm
IAD
-
AEP
48h 53m3 stops
$793Multiple Airlines
Tue, Apr 14 - Thu, May 7

American Airlines flights from Buenos Aires to Washington, D.C. Dulles Intl Airport

Our best American Airlines deals on Buenos Aires to Washington, D.C. Dulles Intl Airport flight tickets
American Airlines
Feb 17
EZE10:25 pmBuenos Aires Ministro Pistarini
20h 06m
1 stop
IAD4:31 pmWashington, D.C. Dulles Intl
Mar 17
IAD6:00 amWashington, D.C. Dulles Intl
25h 30m
1 stop
EZE8:30 amBuenos Aires Ministro Pistarini
$650
Find similar
American Airlines
Feb 17
EZE11:59 pmBuenos Aires Ministro Pistarini
24h 49m
2 stops
IAD10:48 pmWashington, D.C. Dulles Intl
Mar 17
IAD11:24 amWashington, D.C. Dulles Intl
20h 06m
2 stops
EZE8:30 amBuenos Aires Ministro Pistarini
$654
Find similar
American Airlines
Dec 22
EZE10:10 amBuenos Aires Ministro Pistarini
24h 32m
2 stops
IAD8:42 amWashington, D.C. Dulles Intl
Jan 3
IAD4:29 pmWashington, D.C. Dulles Intl
39h 01m
2 stops
EZE9:30 amBuenos Aires Ministro Pistarini
$1,107
Find similar

Delta flights from Buenos Aires to Washington, D.C. Dulles Intl Airport

Our best Delta deals on Buenos Aires to Washington, D.C. Dulles Intl Airport flight tickets
Delta
Jan 28
EZE10:25 pmBuenos Aires Ministro Pistarini
15h 18m
1 stop
IAD11:43 amWashington, D.C. Dulles Intl
Feb 5
IAD10:08 amWashington, D.C. Dulles Intl
20h 52m
1 stop
EZE9:00 amBuenos Aires Ministro Pistarini
$756
Find similar
Delta
Dec 23
EZE8:55 pmBuenos Aires Ministro Pistarini
14h 51m
1 stop
IAD9:46 amWashington, D.C. Dulles Intl
Jan 5
IAD6:20 amWashington, D.C. Dulles Intl
21h 45m
2 stops
EZE6:05 amBuenos Aires Ministro Pistarini
$820
Find similar
Delta
Dec 16
EZE10:25 pmBuenos Aires Ministro Pistarini
15h 14m
1 stop
IAD11:39 amWashington, D.C. Dulles Intl
Jan 2
IAD4:17 pmWashington, D.C. Dulles Intl
14h 43m
1 stop
EZE9:00 amBuenos Aires Ministro Pistarini
$949
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Buenos Aires to Washington, D.C. Dulles Intl 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 15, 2025.
Use the filters below to find and compare flights from Buenos Aires to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

Tue 4/14

4:45 pm-5:35 am

1 stop13h 50m

Washington, D.C. Dulles Intl

Thu 5/7

4:05 am-12:10 am

2 stops19h 05m

$635

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

Tue 4/14

4:45 pm-3:45 pm

2 stops24h 00m

Washington, D.C. Dulles Intl

Thu 5/7

4:05 am-12:10 am

2 stops19h 05m

$637

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

Fri 3/13

7:30 am-2:40 am

2 stops20h 10m

Washington, D.C. Dulles Intl

Mon 3/16

3:35 pm-5:50 am

1 stop13h 15m

$644

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

Fri 3/13

7:30 am-2:40 am

2 stops20h 10m

Washington, D.C. Dulles Intl

Mon 3/16

5:30 am-5:50 am

2 stops23h 20m

$645

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

Sat 5/9

4:45 pm-5:35 am

1 stop13h 50m

Washington, D.C. Dulles Intl

Sat 5/23

4:05 am-12:10 am

2 stops19h 05m

$653

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

Tue 2/17

10:25 pm-4:31 pm

1 stop20h 06m

Washington, D.C. Dulles Intl

Tue 3/17

11:24 am-10:50 am

2 stops22h 26m

$654

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

Tue 4/14

4:45 pm-5:35 am

1 stop13h 50m

Washington, D.C. Dulles Intl

Thu 5/7

3:25 pm-5:45 am

1 stop13h 20m

$659

Buenos AiresWashington, D.C.

AEP - IAD

AEPIAD

Buenos Aires Jorge Newbery

Mon 5/11

8:05 pm-7:16 pm

2 stops24h 11m

Washington, D.C. Dulles Intl

Fri 5/22

7:59 pm-4:00 pm

2 stops19h 01m

$737

Buenos AiresWashington, D.C.

AEP - IAD

AEPIAD

Buenos Aires Jorge Newbery

Tue 4/14

7:00 am-5:35 am

1 stop23h 35m

Washington, D.C. Dulles Intl

Thu 5/7

7:59 pm-7:40 am

2 stops34h 41m

$761

Buenos AiresWashington, D.C.

AEP - IAD

AEPIAD

Buenos Aires Jorge Newbery

Tue 4/14

7:06 pm-4:22 am

2 stops34h 16m

Washington, D.C. Dulles Intl

Thu 5/7

2:07 pm-4:00 pm

3 stops48h 53m

$793

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 Washington, D.C. from

How to get the cheapest flight ticket from Buenos Aires to Washington, D.C. Dulles Intl 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 month to fly to Washington, D.C. Dulles Intl Airport?

In general, April is the cheapest month to fly from Buenos Aires to Washington, D.C. Dulles Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $479. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of April, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $718.

What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Our data shows that Thursday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $831. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Buenos Aires to Washington, D.C. Dulles Intl Airport for around $1,109.

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Flying to Washington, D.C. Dulles Intl Airport from Buenos Aires in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $882 when looking at flights departing in the afternoon. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $1,017 on average. Flights to Washington, D.C. Dulles Intl Airport from Buenos Aires in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

You could potentially save up to 8% on your flight if you consider stops on a Buenos Aires to Washington, D.C. Dulles Intl Airport flight.

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

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

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

Fastest flight time

14h 13m

Direct flights

None
The fastest flight from Buenos Aires to Washington, D.C. Dulles Intl Airport takes 14h 13m
There are no direct flights from Buenos Aires to Washington, D.C. Dulles Intl Airport. There are no popular flight routes from Buenos Aires to Washington, D.C. Dulles Intl Airport.
Search flight deals

  • How far is Buenos Aires to Washington, D.C. Dulles Intl by plane?

    The distance between Buenos Aires and Washington, D.C. Dulles Intl is about 5223.3 mi. Flights usually cover this in 14h 13m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Buenos Aires to Washington, D.C. Dulles Intl Airport refresh daily.

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

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

    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. Dulles Intl Airport.

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

    The travel and health documents you'll need for your trip to Washington, D.C. Dulles Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C. Dulles Intl Airport. It is always advisable to seek 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. Dulles Intl Airport?

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

Compare and see reviews for airlines that fly from Buenos Aires to Washington, D.C. Dulles Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
AviancaPriceFrom $265Free CancellationRating
6.6
2,485 reviews
Search Avianca flights
DeltaPriceFrom $270Free CancellationRating
7.9
8,008 reviews
Search Delta flights
Copa AirlinesPriceFrom $420Free CancellationRating
7.6
1,557 reviews
Search Copa 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
Winchester
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Towson
Harpers Ferry
Rockville
Gaithersburg
Reston
Manassas
Sterling
Fairfax

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Buenos Aires to Washington, D.C. for you.

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.?

Once all potential Buenos Aires to Washington, D.C. 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 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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