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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 11/6. 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
1:40 am - 1:15 pmEZE-IAD
13h 35m1 stop
Avianca Logo
2:35 pm - 5:50 amIAD-EZE
13h 15m1 stop
$647Avianca
Find Deal
Tue, Nov 25 - Wed, Dec 3
Avianca Logo
7:30 am - 1:40 amEZE-IAD
20h 10m2 stops
Avianca Logo
2:35 pm - 3:50 pmIAD-EZE
23h 15m1 stop
$648Avianca
Find Deal
Tue, Nov 25 - Tue, Dec 2
American Airlines Logo
10:25 pm - 4:28 pmEZE-IAD
20h 03m1 stop
American Airlines Logo
10:48 am - 10:15 amIAD-EZE
22h 27m2 stops
$658American Airlines
Find Deal
Tue, Feb 17 - Tue, Mar 17
Copa Airlines Logo
2:34 pm - 3:22 amEZE-IAD
14h 48m1 stop
Copa Airlines Logo
1:13 am - 10:31 pmIAD-EZE
19h 18m1 stop
$665Copa Airlines
Find Deal
Wed, Nov 26 - Tue, Dec 2
Copa Airlines Logo
3:57 am - 11:33 pmEZE-IAD
21h 36m1 stop
Copa Airlines Logo
1:13 am - 10:31 pmIAD-EZE
19h 18m1 stop
$676Copa Airlines
Find Deal
Mon, Nov 24 - Mon, Dec 1
Multiple Airlines Logo
2:40 am - 7:11 pmEZE-IAD
42h 31m2 stops
Multiple Airlines Logo
3:24 pm - 10:31 pmIAD-EZE
29h 07m1 stop
$677Multiple Airlines
Find Deal
Wed, Nov 19 - Sun, Nov 30
United Airlines Logo
11:55 pm - 10:12 pmEZE-IAD
24h 17m1 stop
United Airlines Logo
5:45 pm - 7:20 amIAD-EZE
35h 35m1 stop
$679United Airlines
Find Deal
Mon, Nov 17 - Sun, Nov 23
Multiple Airlines Logo
7:30 am - 1:40 amEZE-IAD
20h 10m2 stops
Multiple Airlines Logo
1:13 am - 10:31 pmIAD-EZE
19h 18m1 stop
$680Multiple Airlines
Find Deal
Tue, Nov 25 - Mon, Dec 1
United Airlines Logo
10:05 pm - 11:28 amEZE-IAD
15h 23m1 stop
United Airlines Logo
12:45 pm - 7:20 amIAD-EZE
16h 35m1 stop
$688United Airlines
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Tue, Nov 25 - Tue, Dec 2
American Airlines Logo
10:25 pm - 4:28 pmEZE-IAD
20h 03m1 stop
American Airlines Logo
6:40 am - 8:30 amIAD-EZE
24h 50m1 stop
$704American Airlines
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Tue, Feb 17 - Tue, Mar 17

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

Our best Avianca deals on Buenos Aires to Washington, D.C. Dulles Intl Airport flight tickets
Avianca
Nov 25
EZE1:40 amBuenos Aires Ministro Pistarini
13h 35m
1 stop
IAD1:15 pmWashington, D.C. Dulles Intl
Dec 3
IAD2:35 pmWashington, D.C. Dulles Intl
13h 15m
1 stop
EZE5:50 amBuenos Aires Ministro Pistarini
$647
Find similar
Avianca
Nov 25
EZE7:30 amBuenos Aires Ministro Pistarini
20h 10m
2 stops
IAD1:40 amWashington, D.C. Dulles Intl
Dec 2
IAD2:35 pmWashington, D.C. Dulles Intl
23h 15m
1 stop
EZE3:50 pmBuenos Aires Ministro Pistarini
$648
Find similar
Avianca
Nov 26
EZE4:55 pmBuenos Aires Ministro Pistarini
22h 20m
1 stop
IAD1:15 pmWashington, D.C. Dulles Intl
Dec 3
IAD5:45 amWashington, D.C. Dulles Intl
22h 05m
1 stop
EZE5:50 amBuenos Aires Ministro Pistarini
$649
Find similar

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

Our best Copa Airlines deals on Buenos Aires to Washington, D.C. Dulles Intl Airport flight tickets
Copa Airlines
Nov 26
EZE2:34 pmBuenos Aires Ministro Pistarini
14h 48m
1 stop
IAD3:22 amWashington, D.C. Dulles Intl
Dec 2
IAD1:13 amWashington, D.C. Dulles Intl
19h 18m
1 stop
EZE10:31 pmBuenos Aires Ministro Pistarini
$665
Find similar
Copa Airlines
Nov 24
EZE3:57 amBuenos Aires Ministro Pistarini
21h 36m
1 stop
IAD11:33 pmWashington, D.C. Dulles Intl
Dec 1
IAD1:13 amWashington, D.C. Dulles Intl
19h 18m
1 stop
EZE10:31 pmBuenos Aires Ministro Pistarini
$676
Find similar
Copa Airlines
Nov 26
EZE2:34 pmBuenos Aires Ministro Pistarini
14h 48m
1 stop
IAD3:22 amWashington, D.C. Dulles Intl
Dec 3
IAD8:22 amWashington, D.C. Dulles Intl
14h 36m
1 stop
EZE12:58 amBuenos Aires Ministro Pistarini
$686
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 October 30, 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 11/25

1:40 am-1:15 pm

1 stop13h 35m

Washington, D.C. Dulles Intl

Wed 12/3

2:35 pm-5:50 am

1 stop13h 15m

$647

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

Tue 11/25

7:30 am-1:40 am

2 stops20h 10m

Washington, D.C. Dulles Intl

Tue 12/2

2:35 pm-3:50 pm

1 stop23h 15m

$648

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

Tue 2/17

10:25 pm-4:28 pm

1 stop20h 03m

Washington, D.C. Dulles Intl

Tue 3/17

10:48 am-10:15 am

2 stops22h 27m

$658

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

Wed 11/26

2:34 pm-3:22 am

1 stop14h 48m

Washington, D.C. Dulles Intl

Tue 12/2

1:13 am-10:31 pm

1 stop19h 18m

$665

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

Mon 11/24

3:57 am-11:33 pm

1 stop21h 36m

Washington, D.C. Dulles Intl

Mon 12/1

1:13 am-10:31 pm

1 stop19h 18m

$676

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

Wed 11/19

2:40 am-7:11 pm

2 stops42h 31m

Washington, D.C. Dulles Intl

Sun 11/30

3:24 pm-10:31 pm

1 stop29h 07m

$677

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

Mon 11/17

11:55 pm-10:12 pm

1 stop24h 17m

Washington, D.C. Dulles Intl

Sun 11/23

5:45 pm-7:20 am

1 stop35h 35m

$679

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

Tue 11/25

7:30 am-1:40 am

2 stops20h 10m

Washington, D.C. Dulles Intl

Mon 12/1

1:13 am-10:31 pm

1 stop19h 18m

$680

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

Tue 11/25

10:05 pm-11:28 am

1 stop15h 23m

Washington, D.C. Dulles Intl

Tue 12/2

12:45 pm-7:20 am

1 stop16h 35m

$688

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

Tue 2/17

10:25 pm-4:28 pm

1 stop20h 03m

Washington, D.C. Dulles Intl

Tue 3/17

6:40 am-8:30 am

1 stop24h 50m

$704

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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 5% 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

Direct flights

None
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 13h 30m, 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
DeltaPriceFrom $344Free CancellationRating
7.9
7,993 reviews
Search Delta flights
AviancaPriceFrom $434Free CancellationRating
6.6
2,467 reviews
Search Avianca flights
Copa AirlinesPriceFrom $442Free CancellationRating
7.6
1,561 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
Harpers Ferry
Towson
Rockville
Manassas
Reston
Gaithersburg
Fairfax
Sterling

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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