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Cheap flights from District of Columbia to Buenos Aires from $275

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from District of Columbia to Buenos Aires departing on 10/21. 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 District of Columbia to Buenos Aires

Cheap round-trip flights

Enter your travel dates to find the best prices.
Avianca Logo
5:45 am - 5:45 amIAD-EZE
23h 00m2 stops
Avianca Logo
7:35 am - 5:25 amEZE-IAD
22h 50m1 stop
$596Avianca
Find Deal
Tue, Oct 21 - Tue, Oct 28
Avianca Logo
4:05 am - 5:45 amIAD-EZE
24h 40m2 stops
Avianca Logo
7:35 am - 2:40 amEZE-IAD
20h 05m2 stops
$597Avianca
Find Deal
Tue, Oct 21 - Tue, Oct 28
Copa Airlines Logo
1:13 am - 1:00 amIAD-EZE
21h 47m1 stop
Copa Airlines Logo
9:03 am - 3:22 amEZE-IAD
20h 19m1 stop
$628Copa Airlines
Find Deal
Wed, Nov 19 - Tue, Dec 2
LATAM Airlines Logo
2:30 pm - 9:15 amDCA-EZE
16h 45m2 stops
LATAM Airlines Logo
7:43 pm - 2:01 pmEZE-DCA
20h 18m2 stops
$628LATAM Airlines
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Wed, Dec 3 - Wed, Dec 10
Delta Logo
12:39 pm - 9:00 amDCA-EZE
18h 21m1 stop
Delta Logo
8:55 pm - 9:10 amEZE-DCA
14h 15m1 stop
$629Delta
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Mon, Nov 24 - Wed, Dec 3
United Airlines Logo
12:55 pm - 7:20 amIAD-EZE
16h 25m1 stop
United Airlines Logo
11:55 pm - 8:51 pmEZE-IAD
22h 56m1 stop
$631United Airlines
Find Deal
Tue, Nov 4 - Tue, Nov 11
LATAM Airlines Logo
4:10 pm - 9:35 amDCA-EZE
15h 25m2 stops
LATAM Airlines Logo
7:43 pm - 2:01 pmEZE-DCA
20h 18m2 stops
$632LATAM Airlines
Find Deal
Mon, Dec 1 - Wed, Dec 10
Delta Logo
5:59 pm - 9:00 amIAD-EZE
13h 01m1 stop
Delta Logo
8:55 pm - 9:10 amEZE-IAD
14h 15m1 stop
$640Delta
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Tue, Nov 18 - Wed, Dec 3
United Airlines Logo
10:10 pm - 9:20 amIAD-EZE
33h 10m1 stop
United Airlines Logo
10:05 pm - 11:23 amEZE-IAD
15h 18m1 stop
$648United Airlines
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Sat, Nov 22 - Thu, Dec 4
Copa Airlines Logo
2:25 am - 10:08 pmIAD-EZE
18h 43m1 stop
Copa Airlines Logo
2:32 pm - 4:20 amEZE-IAD
14h 48m1 stop
$658Copa Airlines
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Sat, Oct 18 - Sat, Oct 25

American Airlines flights from District of Columbia to Buenos Aires

Our best American Airlines deals on District of Columbia to Buenos Aires flight tickets
American Airlines
Nov 25
DCA10:46 amWashington, D.C. Reagan-National
19h 34m
1 stop
EZE8:20 amBuenos Aires Ministro Pistarini
Nov 30
EZE11:59 pmBuenos Aires Ministro Pistarini
14h 43m
1 stop
DCA12:42 pmWashington, D.C. Reagan-National
$692
Find similar
American Airlines
Nov 5
DCA5:24 pmWashington, D.C. Reagan-National
14h 46m
2 stops
EZE10:10 amBuenos Aires Ministro Pistarini
Nov 12
EZE11:20 pmBuenos Aires Ministro Pistarini
13h 27m
1 stop
DCA10:47 amWashington, D.C. Reagan-National
$694
Find similar
American Airlines
Nov 23
DCA12:26 pmWashington, D.C. Reagan-National
20h 14m
1 stop
EZE10:40 amBuenos Aires Ministro Pistarini
Nov 30
EZE11:59 pmBuenos Aires Ministro Pistarini
22h 22m
1 stop
DCA8:21 pmWashington, D.C. Reagan-National
$740
Find similar

LATAM Airlines flights from District of Columbia to Buenos Aires

Our best LATAM Airlines deals on District of Columbia to Buenos Aires flight tickets
LATAM Airlines
Dec 3
DCA2:30 pmWashington, D.C. Reagan-National
16h 45m
2 stops
EZE9:15 amBuenos Aires Ministro Pistarini
Dec 10
EZE7:43 pmBuenos Aires Ministro Pistarini
20h 18m
2 stops
DCA2:01 pmWashington, D.C. Reagan-National
$628
Find similar
LATAM Airlines
Dec 1
DCA4:10 pmWashington, D.C. Reagan-National
15h 25m
2 stops
EZE9:35 amBuenos Aires Ministro Pistarini
Dec 10
EZE7:43 pmBuenos Aires Ministro Pistarini
20h 18m
2 stops
DCA2:01 pmWashington, D.C. Reagan-National
$632
Find similar
LATAM Airlines
Nov 24
DCA2:35 pmWashington, D.C. Reagan-National
26h 05m
2 stops
AEP6:40 pmBuenos Aires Jorge Newbery
Dec 2
AEP5:15 pmBuenos Aires Jorge Newbery
22h 44m
2 stops
DCA1:59 pmWashington, D.C. Reagan-National
$638
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from District of Columbia to Buenos Aires 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 8, 2025.
Use the filters below to find and compare flights from District of Columbia to Buenos Aires 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

Tue 10/21

5:45 am-5:45 am

2 stops23h 00m

Buenos Aires Ministro Pistarini

Tue 10/28

7:35 am-5:25 am

1 stop22h 50m

$596

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Tue 10/21

4:05 am-5:45 am

2 stops24h 40m

Buenos Aires Ministro Pistarini

Tue 10/28

7:35 am-2:40 am

2 stops20h 05m

$597

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Wed 11/19

1:13 am-1:00 am

1 stop21h 47m

Buenos Aires Ministro Pistarini

Tue 12/2

9:03 am-3:22 am

1 stop20h 19m

$628

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

Wed 12/3

2:30 pm-9:15 am

2 stops16h 45m

Buenos Aires Ministro Pistarini

Wed 12/10

7:43 pm-2:01 pm

2 stops20h 18m

$628

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

Mon 11/24

12:39 pm-9:00 am

1 stop18h 21m

Buenos Aires Ministro Pistarini

Wed 12/3

8:55 pm-9:10 am

1 stop14h 15m

$629

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Tue 11/4

12:55 pm-7:20 am

1 stop16h 25m

Buenos Aires Ministro Pistarini

Tue 11/11

11:55 pm-8:51 pm

1 stop22h 56m

$631

Washington, D.C.Buenos Aires

DCA - EZE

DCAEZE

Washington, D.C. Reagan-National

Mon 12/1

4:10 pm-9:35 am

2 stops15h 25m

Buenos Aires Ministro Pistarini

Wed 12/10

7:43 pm-2:01 pm

2 stops20h 18m

$632

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Tue 11/18

5:59 pm-9:00 am

1 stop13h 01m

Buenos Aires Ministro Pistarini

Wed 12/3

8:55 pm-9:10 am

1 stop14h 15m

$640

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Sat 11/22

10:10 pm-9:20 am

1 stop33h 10m

Buenos Aires Ministro Pistarini

Thu 12/4

10:05 pm-11:23 am

1 stop15h 18m

$648

Washington, D.C.Buenos Aires

IAD - EZE

IADEZE

Washington, D.C. Dulles Intl

Sat 10/18

2:25 am-10:08 pm

1 stop18h 43m

Buenos Aires Ministro Pistarini

Sat 10/25

2:32 pm-4:20 am

1 stop14h 48m

$658

Flights are sorted by cheapest round-trip flights first.

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How to get the cheapest flight ticket from District of Columbia to Buenos Aires

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?

The cheapest month to fly to Buenos Aires from District of Columbia is in August. Flight prices, which tend to average around $641, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of August, then book flights to Buenos Aires from District of Columbia during September instead. Flights to Buenos Aires in September, while not as cheap as those in August, still average around $647.

What is the cheapest day to depart on your flight to Buenos Aires?

On average, the least expensive day to fly to Buenos Aires from District of Columbia is on a Monday. momondo users have found tickets for Monday departures for as low as $1,031. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Buenos Aires on Saturday is $1,094.

What is the cheapest time of day to depart on your flight to Buenos Aires?

Our most recent data shows that the best time of day to fly to Buenos Aires is in the morning. Flights from District of Columbia to Buenos Aires during this time can be as low as $969. Try not to purchase tickets at noon because they tend to be around $1,107. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

You are more likely to see cheaper flights to Buenos Aires from District of Columbia when booking weeks ahead of your departure date. In general, you can expect to find flights to Buenos Aires for around $878 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Buenos Aires from District of Columbia for as low as $769 on momondo.

Can stopping save me money on District of Columbia to Buenos Aires flights?

You could potentially save up to 5% on your flight if you consider stops on a District of Columbia to Buenos Aires flight.

Cheap District of Columbia to Buenos Aires flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from District of Columbia to Buenos Aires

Direct flights

None
There are no direct flights from District of Columbia to Buenos Aires. There are no popular flight routes from District of Columbia to Buenos Aires.
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  • When did momondo last update prices for flights from District of Columbia to Buenos Aires?

    Prices for flights from District of Columbia to Buenos Aires are updated daily.

  • How many operators does momondo search for flights from District of Columbia to Buenos Aires?

  • How old do you have to be to fly from District of Columbia to Buenos Aires?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from District of Columbia to Buenos Aires.

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

    The necessary travel and health documents for your Buenos Aires 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 District of Columbia to Buenos Aires

Compare and see reviews for airlines that fly from District of Columbia to Buenos Aires with momondo
Airline
Rating
Free Cancellation
Price
LATAM AirlinesPriceFrom $506Free CancellationRating
7.5
1,862 reviews
Search LATAM Airlines flights
DeltaPriceFrom $514Free CancellationRating
7.9
7,969 reviews
Search Delta flights
AviancaPriceFrom $600Free CancellationRating
6.7
2,447 reviews
Search Avianca flights
Copa AirlinesPriceFrom $617Free CancellationRating
7.6
1,542 reviews
Search Copa Airlines flights
United AirlinesPriceFrom $629Free CancellationRating
7.4
8,966 reviews
Search United Airlines flights
American AirlinesPriceFrom $639Free CancellationRating
7.2
11,042 reviews
Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from District of Columbia to Buenos Aires?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from District of Columbia to Buenos Aires. momondo saves you time and could save you money on your trip.

Can I find flights from District of Columbia to Buenos Aires with flexible booking policies on momondo?

All flight searches from District of Columbia to Buenos Aires on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from District of Columbia to Buenos Aires?

momondo provides multiple filters to help you find the best flight to Buenos Aires from District of Columbia. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from District of Columbia to Buenos Aires right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Buenos Aires from District of Columbia. 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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Find better results for your trip to Argentina

Fly into one of these airports located in Buenos Aires

Airports listed have a maximum distance of 17.0 mi from Buenos Aires
Buenos Aires Jorge Newbery Airport
Buenos Aires Ministro Pistarini Airport