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Cheap flights from Washington, D.C. to Buenos Aires from $251

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Buenos Aires departing on 5/6. 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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Find the cheapest flights from Washington, D.C. to Buenos Aires

Cheap round-trip flights

Enter your travel dates to find the best prices.
Avianca Logo
3:35 pm - 5:50 am
IAD
-
EZE
13h 15m
1 stop
Avianca Logo
4:50 pm - 5:20 am
EZE
-
IAD
13h 30m
1 stop
$601Avianca
Mon, Mar 23 - Wed, Apr 1
United Airlines Logo
11:05 am - 8:00 am
DCA
-
EZE
19h 55m
1 stop
United Airlines Logo
9:00 pm - 6:50 pm
EZE
-
DCA
22h 50m
1 stop
$601United Airlines
Sun, Apr 5 - Tue, Apr 21
Avianca Logo
7:00 am - 3:20 pm
IAD
-
EZE
31h 20m
1 stop
Avianca Logo
6:50 am - 2:00 pm
EZE
-
IAD
32h 10m
1 stop
$603Avianca
Wed, Apr 1 - Wed, Apr 8
Avianca Logo
6:50 am - 5:45 am
IAD
-
EZE
21h 55m
1 stop
Avianca Logo
7:10 am - 2:45 am
EZE
-
IAD
20h 35m
2 stops
$604Avianca
Wed, May 20 - Tue, May 26
American Airlines Logo
1:44 pm - 6:00 am
DCA
-
EZE
15h 16m
2 stops
American Airlines Logo
10:20 pm - 12:43 pm
EZE
-
DCA
15h 23m
1 stop
$605American Airlines
Thu, Apr 9 - Mon, Apr 20
Copa Airlines Logo
4:45 pm - 7:55 am
BWI
-
EZE
14h 10m
1 stop
Copa Airlines Logo
2:21 am - 3:17 pm
EZE
-
BWI
13h 56m
1 stop
$609Copa Airlines
Wed, Mar 11 - Tue, Mar 31
American Airlines Logo
12:21 pm - 8:50 am
BWI
-
EZE
19h 29m
1 stop
American Airlines Logo
8:25 pm - 9:51 am
EZE
-
BWI
14h 26m
1 stop
$621American Airlines
Wed, Apr 8 - Wed, Apr 15
Delta Logo
3:50 pm - 9:00 am
DCA
-
EZE
16h 10m
1 stop
Delta Logo
8:10 pm - 5:00 pm
EZE
-
DCA
21h 50m
1 stop
$637Delta
Mon, Mar 9 - Tue, Apr 21
LATAM Airlines Logo
6:25 pm - 9:45 am
DCA
-
EZE
14h 20m
1 stop
LATAM Airlines Logo
3:45 pm - 2:05 pm
EZE
-
DCA
23h 20m
2 stops
$640LATAM Airlines
Sun, Jun 7 - Sat, Aug 8
LATAM Airlines Logo
4:45 pm - 9:00 am
BWI
-
EZE
14h 15m
1 stop
LATAM Airlines Logo
8:55 pm - 1:31 pm
EZE
-
BWI
17h 36m
1 stop
$646LATAM Airlines
Mon, Mar 2 - Wed, Mar 11

Copa Airlines flights from Washington, D.C. to Buenos Aires Ministro Pistarini Airport

Our best Copa Airlines deals on Washington, D.C. to Buenos Aires Ministro Pistarini Airport flight tickets
Copa Airlines
Mar 11
BWI4:45 pmBaltimore/Washington
14h 10m
1 stop
EZE7:55 amBuenos Aires Ministro Pistarini
Mar 31
EZE2:21 amBuenos Aires Ministro Pistarini
13h 56m
1 stop
BWI3:17 pmBaltimore/Washington
$609
Copa Airlines
Feb 17
IAD1:18 amWashington, D.C. Dulles Intl
20h 52m
1 stop
EZE12:10 amBuenos Aires Ministro Pistarini
Mar 4
EZE5:16 amBuenos Aires Ministro Pistarini
23h 59m
1 stop
IAD3:15 amWashington, D.C. Dulles Intl
$629
Copa Airlines
Feb 1
BWI3:45 pmBaltimore/Washington
14h 12m
1 stop
EZE7:57 amBuenos Aires Ministro Pistarini
Feb 13
EZE12:19 amBuenos Aires Ministro Pistarini
15h 51m
1 stop
BWI2:10 pmBaltimore/Washington
$632

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

Our best LATAM Airlines deals on Washington, D.C. to Buenos Aires Ministro Pistarini Airport flight tickets
LATAM Airlines
Jun 7
DCA6:25 pmWashington, D.C. Reagan-National
14h 20m
1 stop
EZE9:45 amBuenos Aires Ministro Pistarini
Aug 8
EZE3:45 pmBuenos Aires Ministro Pistarini
23h 20m
2 stops
DCA2:05 pmWashington, D.C. Reagan-National
$640
LATAM Airlines
Feb 27
IAD7:52 pmWashington, D.C. Dulles Intl
33h 28m
2 stops
EZE7:20 amBuenos Aires Ministro Pistarini
Mar 10
EZE8:55 pmBuenos Aires Ministro Pistarini
15h 57m
1 stop
IAD11:52 amWashington, D.C. Dulles Intl
$641
LATAM Airlines
Feb 24
DCA11:06 amWashington, D.C. Reagan-National
21h 09m
1 stop
EZE10:15 amBuenos Aires Ministro Pistarini
Mar 9
EZE8:55 pmBuenos Aires Ministro Pistarini
15h 15m
1 stop
DCA11:10 amWashington, D.C. Reagan-National
$642

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to Buenos Aires Ministro Pistarini 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 January 29, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Buenos Aires Ministro Pistarini Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Mon 3/23

3:35 pm-5:50 am

1 stop13h 15m

Buenos Aires Ministro Pistarini

Wed 4/1

4:50 pm-5:20 am

1 stop13h 30m

$601

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

Sun 4/5

11:05 am-8:00 am

1 stop19h 55m

Buenos Aires Ministro Pistarini

Tue 4/21

9:00 pm-6:50 pm

1 stop22h 50m

$601

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Wed 4/1

7:00 am-3:20 pm

1 stop31h 20m

Buenos Aires Ministro Pistarini

Wed 4/8

6:50 am-2:00 pm

1 stop32h 10m

$603

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Wed 5/20

6:50 am-5:45 am

1 stop21h 55m

Buenos Aires Ministro Pistarini

Tue 5/26

7:10 am-2:45 am

2 stops20h 35m

$604

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

Thu 4/9

1:44 pm-6:00 am

2 stops15h 16m

Buenos Aires Ministro Pistarini

Mon 4/20

10:20 pm-12:43 pm

1 stop15h 23m

$605

BaltimoreBuenos Aires

BWI - EZE

BWIEZE

Baltimore/Washington

Wed 3/11

4:45 pm-7:55 am

1 stop14h 10m

Buenos Aires Ministro Pistarini

Tue 3/31

2:21 am-3:17 pm

1 stop13h 56m

$609

BaltimoreBuenos Aires

BWI - EZE

BWIEZE

Baltimore/Washington

Wed 4/8

12:21 pm-8:50 am

1 stop19h 29m

Buenos Aires Ministro Pistarini

Wed 4/15

8:25 pm-9:51 am

1 stop14h 26m

$621

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

Mon 3/9

3:50 pm-9:00 am

1 stop16h 10m

Buenos Aires Ministro Pistarini

Tue 4/21

8:10 pm-5:00 pm

1 stop21h 50m

$637

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

Sun 6/7

6:25 pm-9:45 am

1 stop14h 20m

Buenos Aires Ministro Pistarini

Sat 8/8

3:45 pm-2:05 pm

2 stops23h 20m

$640

BaltimoreBuenos Aires

BWI - EZE

BWIEZE

Baltimore/Washington

Mon 3/2

4:45 pm-9:00 am

1 stop14h 15m

Buenos Aires Ministro Pistarini

Wed 3/11

8:55 pm-1:31 pm

1 stop17h 36m

$646

Flights are sorted by cheapest round-trip flights first.

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How to get the cheapest flight ticket from Washington, D.C. to Buenos Aires Ministro Pistarini 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 Buenos Aires Ministro Pistarini Airport?

If you aren’t able to travel during the month of September, then book flights to Buenos Aires Ministro Pistarini Airport from Washington, D.C. during January instead. Flights to Buenos Aires Ministro Pistarini Airport in January, while not as cheap as those in September, still average around $760.

How far in advance should I book a flight to Buenos Aires Ministro Pistarini Airport?

You are more likely to see cheaper flights to Buenos Aires Ministro Pistarini Airport from Washington, D.C. when booking weeks ahead of your departure date. In general, you can expect to find flights to Buenos Aires Ministro Pistarini Airport for around $847 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Buenos Aires Ministro Pistarini Airport from Washington, D.C. for as low as $619 on momondo.

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

You could potentially save up to 19% on your flight if you consider stops on a Washington, D.C. to Buenos Aires Ministro Pistarini Airport flight.

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

As of January 2026, prices for Washington, D.C. to Buenos Aires Ministro Pistarini Airport flights are approximately 46% cheaper when compared to flights at the same time last year.

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

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

Cheap Washington, D.C. to Buenos Aires Ministro Pistarini Airport (WAS to EZE) flight deals and tips

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

Fastest flight time

13h 05m

Direct flights

None
The fastest flight from Washington, D.C. to Buenos Aires Ministro Pistarini Airport takes 13h 05m
There are no direct flights from Washington, D.C. to Buenos Aires Ministro Pistarini Airport. There are no popular flight routes from Washington, D.C. to Buenos Aires Ministro Pistarini Airport.
Search flight deals

  • How far is Washington, D.C. to Buenos Aires Ministro Pistarini by plane?

    The straight-line distance from Washington, D.C. to Buenos Aires Ministro Pistarini is 5226.0 mi. Flights usually cover this in 13h 05m, depending on flying conditions and air traffic around both airports.

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

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

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to Buenos Aires Ministro Pistarini Airport.

  • What documentation or ID do you need to fly to Buenos Aires Ministro Pistarini Airport?

    The travel and health documents you'll need for your trip to Buenos Aires Ministro Pistarini 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 Buenos Aires Ministro Pistarini 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 Washington, D.C. to Buenos Aires Ministro Pistarini Airport?

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

Compare and see reviews for airlines that fly from Washington, D.C. to Buenos Aires Ministro Pistarini Airport with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $274Free CancellationRating
7.9
8,127 reviews
Search Delta flights
LATAM AirlinesPriceFrom $278Free CancellationRating
7.5
1,918 reviews
Search LATAM Airlines flights
Copa AirlinesPriceFrom $356Free CancellationRating
7.5
1,560 reviews
Search Copa Airlines flights
American AirlinesPriceFrom $599Free CancellationRating
7.2
11,206 reviews
Search American Airlines flights
AviancaPriceFrom $600Free CancellationRating
6.6
2,492 reviews
Search Avianca flights
United AirlinesPriceFrom $615Free CancellationRating
7.4
9,215 reviews
Search United Airlines flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Buenos Aires from Washington, D.C..

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

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

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

momondo helps you find the best flight between Washington, D.C. and Buenos Aires by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes. momondo can track prices for Washington, D.C. to Buenos Aires flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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