What is the cheapest airline that flies from Washington, D.C. Dulles Intl to Argentina?

LATAM Airlines, Copa Airlines, and Delta are the most popular carriers operating from Washington, D.C. Dulles Intl to Argentina

What airlines fly to Argentina?

Copa Airlines, Avianca and Delta are the top three most popular airlines that fly to Argentina from Washington, D.C. Dulles Intl Airport according to our data. Copa Airlines is the first choice among our users, with 44% of people opting to fly with this airline when traveling to Argentina. Keep in mind that there are 5 different airlines that fly to Argentina on a routine basis, so you have a few additional options to choose from.

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

As of August 2026, there are 5 operators available to choose from for flights from Washington, D.C. Dulles Intl Airport to Argentina.

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

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 Washington, D.C. Dulles Intl Airport to Argentina.

What documentation or ID do you need to fly to Argentina?

The travel and health documents required for your trip to Argentina 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 Argentina. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$289 Cheap Flights from Washington, D.C. Dulles Intl Airport to Argentina in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Argentina

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:15 pm - 9:40 amIAD Washington, D.C. Dulles Intl-EZE Buenos Aires Ministro Pistarini

17h 25m2 stops Atlanta Hartsfield-Jackson Miami

3:55 am - 12:41 amEZE Buenos Aires Ministro Pistarini-IAD Washington, D.C. Dulles Intl

21h 46m2 stops Lima J Chavez Intl Atlanta Hartsfield-Jackson

$697LATAM Airlines

Wed, Sep 16 - Tue, Sep 22

2:25 am - 3:34 amIAD Washington, D.C. Dulles Intl-EZE Buenos Aires Ministro Pistarini

24h 09m1 stop Panama City Tocumen Intl

4:02 am - 3:15 amEZE Buenos Aires Ministro Pistarini-IAD Washington, D.C. Dulles Intl

25h 13m1 stop Panama City Tocumen Intl

$706Copa Airlines

Tue, Oct 27 - Mon, Nov 9

4:34 pm - 12:51 amIAD Washington, D.C. Dulles Intl-EZE Buenos Aires Ministro Pistarini

31h 17m1 stop Panama City Tocumen Intl

3:48 am - 12:32 amEZE Buenos Aires Ministro Pistarini-IAD Washington, D.C. Dulles Intl

21h 44m1 stop Panama City Tocumen Intl

$706Copa Airlines

Mon, Sep 7 - Wed, Sep 23

6:20 pm - 10:55 amIAD Washington, D.C. Dulles Intl-EZE Buenos Aires Ministro Pistarini

14h 35m1 stop New York John F Kennedy Intl

8:05 pm - 11:52 amEZE Buenos Aires Ministro Pistarini-IAD Washington, D.C. Dulles Intl

17h 47m1 stop New York John F Kennedy Intl

$716LATAM Airlines

Tue, Nov 24 - Tue, Dec 1

6:07 pm - 9:45 amIAD Washington, D.C. Dulles Intl-EZE Buenos Aires Ministro Pistarini

14h 38m1 stop Atlanta Hartsfield-Jackson

7:35 am - 12:41 amEZE Buenos Aires Ministro Pistarini-IAD Washington, D.C. Dulles Intl

18h 06m2 stops Lima J Chavez Intl Atlanta Hartsfield-Jackson

$718Delta

Fri, Sep 11 - Tue, Sep 22

6:07 pm - 9:45 amIAD Washington, D.C. Dulles Intl-EZE Buenos Aires Ministro Pistarini

14h 38m1 stop Atlanta Hartsfield-Jackson

7:35 am - 12:41 amEZE Buenos Aires Ministro Pistarini-IAD Washington, D.C. Dulles Intl

18h 06m2 stops Lima J Chavez Intl Atlanta Hartsfield-Jackson

$718Delta

Wed, Sep 9 - Tue, Sep 22

6:30 am - 8:00 amIAD Washington, D.C. Dulles Intl-EZE Buenos Aires Ministro Pistarini

24h 30m1 stop Houston George Bush Intcntl

9:00 pm - 8:56 pmEZE Buenos Aires Ministro Pistarini-IAD Washington, D.C. Dulles Intl

24h 56m1 stop Houston George Bush Intcntl

$718United Airlines

Mon, Sep 14 - Sun, Sep 20

6:30 am - 8:00 amIAD Washington, D.C. Dulles Intl-EZE Buenos Aires Ministro Pistarini

24h 30m1 stop Houston George Bush Intcntl

9:00 pm - 7:02 pmEZE Buenos Aires Ministro Pistarini-IAD Washington, D.C. Dulles Intl

23h 02m1 stop Houston George Bush Intcntl

$718United Airlines

Sun, Sep 13 - Wed, Sep 23

7:14 am - 8:30 amIAD Washington, D.C. Dulles Intl-EZE Buenos Aires Ministro Pistarini

23h 16m1 stop Dallas/Fort Worth

10:30 pm - 4:20 pmEZE Buenos Aires Ministro Pistarini-IAD Washington, D.C. Dulles Intl

19h 50m1 stop Dallas/Fort Worth

$718American Airlines

Tue, Feb 2 - Mon, Feb 15

1:08 pm - 10:45 amIAD Washington, D.C. Dulles Intl-EZE Buenos Aires Ministro Pistarini

19h 37m2 stops Charlotte Douglas New York John F Kennedy Intl

10:30 pm - 4:20 pmEZE Buenos Aires Ministro Pistarini-IAD Washington, D.C. Dulles Intl

19h 50m1 stop Dallas/Fort Worth

$722American Airlines

Tue, Feb 2 - Mon, Feb 15

Cheap last minute flights

Enter your travel dates to find the best prices.

12:57 pm - 8:00 amIAD Washington, D.C. Dulles Intl-EZE Buenos Aires Ministro Pistarini

18h 03m1 stop Houston George Bush Intcntl

9:00 pm - 8:56 pmEZE Buenos Aires Ministro Pistarini-IAD Washington, D.C. Dulles Intl

24h 56m1 stop Houston George Bush Intcntl

$720United Airlines

Thu, Aug 20 - Tue, Sep 8

12:30 pm - 9:45 amIAD Washington, D.C. Dulles Intl-EZE Buenos Aires Ministro Pistarini

20h 15m1 stop Atlanta Hartsfield-Jackson

8:10 pm - 11:30 amEZE Buenos Aires Ministro Pistarini-IAD Washington, D.C. Dulles Intl

16h 20m1 stop Atlanta Hartsfield-Jackson

$722LATAM Airlines

Thu, Aug 20 - Tue, Sep 8

3:03 pm - 9:45 amIAD Washington, D.C. Dulles Intl-EZE Buenos Aires Ministro Pistarini

17h 42m1 stop Atlanta Hartsfield-Jackson

8:10 pm - 11:30 amEZE Buenos Aires Ministro Pistarini-IAD Washington, D.C. Dulles Intl

16h 20m1 stop Atlanta Hartsfield-Jackson

$722Delta

Thu, Aug 20 - Tue, Sep 8

7:26 pm - 9:45 amIAD Washington, D.C. Dulles Intl-EZE Buenos Aires Ministro Pistarini

13h 19m1 stop Atlanta Hartsfield-Jackson

1:10 pm - 1:35 pmEZE Buenos Aires Ministro Pistarini-IAD Washington, D.C. Dulles Intl

25h 25m2 stops Miami Minneapolis St Paul

$726Delta

Fri, Aug 21 - Fri, Aug 28

5:47 pm - 9:45 amIAD Washington, D.C. Dulles Intl-EZE Buenos Aires Ministro Pistarini

14h 58m1 stop Atlanta Hartsfield-Jackson

1:10 pm - 11:33 amEZE Buenos Aires Ministro Pistarini-IAD Washington, D.C. Dulles Intl

23h 23m2 stops Miami Atlanta Hartsfield-Jackson

$726LATAM Airlines

Fri, Aug 21 - Sun, Aug 23

6:26 am - 10:26 pmIAD Washington, D.C. Dulles Intl-EZE Buenos Aires Ministro Pistarini

15h 00m1 stop Panama City Tocumen Intl

8:59 am - 3:04 pmEZE Buenos Aires Ministro Pistarini-IAD Washington, D.C. Dulles Intl

31h 05m1 stop Panama City Tocumen Intl

$738Copa Airlines

Thu, Aug 20 - Tue, Sep 8

3:35 pm - 5:40 amIAD Washington, D.C. Dulles Intl-AEP Buenos Aires Jorge Newbery

13h 05m1 stop Bogotá El Dorado

7:00 am - 2:45 amAEP Buenos Aires Jorge Newbery-IAD Washington, D.C. Dulles Intl

20h 45m2 stops Bogotá El Dorado San Salvador El Salvador Intl

$759Avianca

Thu, Aug 20 - Tue, Sep 8

4:10 am - 12:25 amIAD Washington, D.C. Dulles Intl-EZE Buenos Aires Ministro Pistarini

19h 15m2 stops San Salvador El Salvador Intl Bogotá El Dorado

7:10 am - 2:45 amEZE Buenos Aires Ministro Pistarini-IAD Washington, D.C. Dulles Intl

20h 35m2 stops Bogotá El Dorado San Salvador El Salvador Intl

$760Avianca

Thu, Aug 20 - Tue, Sep 8

3:02 pm - 8:00 amIAD Washington, D.C. Dulles Intl-EZE Buenos Aires Ministro Pistarini

15h 58m1 stop Houston George Bush Intcntl

9:00 pm - 11:28 amEZE Buenos Aires Ministro Pistarini-IAD Washington, D.C. Dulles Intl

15h 28m1 stop Houston George Bush Intcntl

$799United Airlines

Fri, Aug 21 - Fri, Aug 28

10:29 pm - 12:23 amIAD Washington, D.C. Dulles Intl-SLA Salta Martin Miguel de Guemes Intl

48h 54m2 stops Houston George Bush Intcntl Panama City Tocumen Intl

1:59 am - 11:28 amSLA Salta Martin Miguel de Guemes Intl-IAD Washington, D.C. Dulles Intl

34h 29m2 stops Panama City Tocumen Intl Houston George Bush Intcntl

$1,260Copa Airlines

Fri, Aug 21 - Thu, Aug 27

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

Our best Copa Airlines deals on Washington, D.C. Dulles Intl Airport to Argentina flight tickets

Copa Airlines

Oct 5

IAD2:25 amWashington, D.C. Dulles Intl

24h 56m

1 stop

EZE4:21 amBuenos Aires Ministro Pistarini

Oct 21

EZE2:49 pmBuenos Aires Ministro Pistarini

14h 31m

1 stop

IAD4:20 amWashington, D.C. Dulles Intl

$706

Copa Airlines

Sep 30

IAD2:25 amWashington, D.C. Dulles Intl

21h 26m

1 stop

EZE12:51 amBuenos Aires Ministro Pistarini

Nov 1

EZE2:21 amBuenos Aires Ministro Pistarini

26h 54m

1 stop

IAD3:15 amWashington, D.C. Dulles Intl

$708

Copa Airlines

Aug 30

IAD4:34 pmWashington, D.C. Dulles Intl

31h 17m

1 stop

EZE12:51 amBuenos Aires Ministro Pistarini

Sep 15

EZE2:49 pmBuenos Aires Ministro Pistarini

14h 31m

1 stop

IAD4:20 amWashington, D.C. Dulles Intl

$710

LATAM Airlines flights from Washington, D.C. Dulles Intl Airport to Argentina

Our best LATAM Airlines deals on Washington, D.C. Dulles Intl Airport to Argentina flight tickets

LATAM Airlines

Sep 16

IAD3:15 pmWashington, D.C. Dulles Intl

17h 25m

2 stops

EZE9:40 amBuenos Aires Ministro Pistarini

Sep 22

EZE3:55 amBuenos Aires Ministro Pistarini

21h 46m

2 stops

IAD12:41 amWashington, D.C. Dulles Intl

$697

LATAM Airlines

Sep 2

IAD12:29 pmWashington, D.C. Dulles Intl

22h 01m

2 stops

EZE11:30 amBuenos Aires Ministro Pistarini

Sep 22

EZE8:10 pmBuenos Aires Ministro Pistarini

16h 20m

1 stop

IAD11:30 amWashington, D.C. Dulles Intl

$718

LATAM Airlines

Oct 26

IAD4:48 pmWashington, D.C. Dulles Intl

33h 12m

2 stops

EZE3:00 amBuenos Aires Ministro Pistarini

Nov 16

EZE8:05 pmBuenos Aires Ministro Pistarini

17h 47m

1 stop

IAD11:52 amWashington, D.C. Dulles Intl

$721

momondo Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Argentina that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Buenos Aires

IAD Washington, D.C. Dulles Intl - EZE Buenos Aires Ministro Pistarini

IADEZE

Washington, D.C. Dulles Intl

Wed 9/16

3:15 pm-9:40 am

2 stops17h 25m

Buenos Aires Ministro Pistarini

Tue 9/22

3:55 am-12:41 am

2 stops21h 46m

$697

Washington, D.C.Buenos Aires

IAD Washington, D.C. Dulles Intl - EZE Buenos Aires Ministro Pistarini

IADEZE

Washington, D.C. Dulles Intl

Tue 10/27

2:25 am-3:34 am

1 stop24h 09m

Buenos Aires Ministro Pistarini

Mon 11/9

4:02 am-3:15 am

1 stop25h 13m

$706

Washington, D.C.Buenos Aires

IAD Washington, D.C. Dulles Intl - EZE Buenos Aires Ministro Pistarini

IADEZE

Washington, D.C. Dulles Intl

Mon 9/7

4:34 pm-12:51 am

1 stop31h 17m

Buenos Aires Ministro Pistarini

Wed 9/23

3:48 am-12:32 am

1 stop21h 44m

$706

Quickest round-trip

Washington, D.C.Buenos Aires

IAD Washington, D.C. Dulles Intl - EZE Buenos Aires Ministro Pistarini

IADEZE

Washington, D.C. Dulles Intl

Tue 11/24

6:20 pm-10:55 am

1 stop14h 35m

Buenos Aires Ministro Pistarini

Tue 12/1

8:05 pm-11:52 am

1 stop17h 47m

$716

Washington, D.C.Buenos Aires

IAD Washington, D.C. Dulles Intl - EZE Buenos Aires Ministro Pistarini

IADEZE

Washington, D.C. Dulles Intl

Fri 9/11

6:07 pm-9:45 am

1 stop14h 38m

Buenos Aires Ministro Pistarini

Tue 9/22

7:35 am-12:41 am

2 stops18h 06m

$718

Washington, D.C.Buenos Aires

IAD Washington, D.C. Dulles Intl - EZE Buenos Aires Ministro Pistarini

IADEZE

Washington, D.C. Dulles Intl

Wed 9/9

6:07 pm-9:45 am

1 stop14h 38m

Buenos Aires Ministro Pistarini

Tue 9/22

7:35 am-12:41 am

2 stops18h 06m

$718

Washington, D.C.Buenos Aires

IAD Washington, D.C. Dulles Intl - EZE Buenos Aires Ministro Pistarini

IADEZE

Washington, D.C. Dulles Intl

Mon 9/14

6:30 am-8:00 am

1 stop24h 30m

Buenos Aires Ministro Pistarini

Sun 9/20

9:00 pm-8:56 pm

1 stop24h 56m

$718

Washington, D.C.Buenos Aires

IAD Washington, D.C. Dulles Intl - EZE Buenos Aires Ministro Pistarini

IADEZE

Washington, D.C. Dulles Intl

Sun 9/13

6:30 am-8:00 am

1 stop24h 30m

Buenos Aires Ministro Pistarini

Wed 9/23

9:00 pm-7:02 pm

1 stop23h 02m

$718

Washington, D.C.Buenos Aires

IAD Washington, D.C. Dulles Intl - EZE Buenos Aires Ministro Pistarini

IADEZE

Washington, D.C. Dulles Intl

Tue 2/2

7:14 am-8:30 am

1 stop23h 16m

Buenos Aires Ministro Pistarini

Mon 2/15

10:30 pm-4:20 pm

1 stop19h 50m

$718

Washington, D.C.Buenos Aires

IAD Washington, D.C. Dulles Intl - EZE Buenos Aires Ministro Pistarini

IADEZE

Washington, D.C. Dulles Intl

Tue 2/2

1:08 pm-10:45 am

2 stops19h 37m

Buenos Aires Ministro Pistarini

Mon 2/15

10:30 pm-4:20 pm

1 stop19h 50m

$722

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Argentina

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

Prices

Airlines

What is the cheapest month to fly to Argentina?

If you are unable to visit Argentina during the month of September, then departing from Washington, D.C. Dulles Intl Airport during the month April is also very affordable. Most momondo users find prices during this month for around $708.

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to Argentina?

You are more likely to see cheaper flights to Argentina from Washington, D.C. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Argentina for around $794 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Argentina from Washington, D.C. Dulles Intl Airport for as low as $400 on momondo.

Cheap Washington, D.C. Dulles Intl Airport to Argentina flight deals and tips

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

Best Price Found	$260
Fastest flight time	13h 05m
Direct flights	None

The best one-way flight to Argentina from Washington, D.C. Dulles Intl Airport in the past 72 hours is $260. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to Argentina found on momondo in the last 72 hours is $697.

The fastest flight from Washington, D.C. Dulles Intl Airport to Argentina takes 13h 05m

There are no direct flights from Washington, D.C. Dulles Intl Airport to Argentina. There are no popular flight routes from Washington, D.C. Dulles Intl Airport to Argentina.

Search flight deals

Frequently asked questions about flying from Washington, D.C. Dulles Intl Airport to Argentina

When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Argentina?
Prices for flights from Washington, D.C. Dulles Intl Airport to Argentina are updated daily.
How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Argentina?
As of August 2026, there are 5 operators available to choose from for flights from Washington, D.C. Dulles Intl Airport to Argentina.
How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Argentina?
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 Washington, D.C. Dulles Intl Airport to Argentina.
What documentation or ID do you need to fly to Argentina?
The travel and health documents required for your trip to Argentina 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 Argentina. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Argentina with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $265	Free Cancellation	Rating 7.4 10,104 reviews	Search United Airlines flights
Delta	PriceFrom $274	Free Cancellation	Rating 7.8 8,499 reviews	Search Delta flights
Avianca	PriceFrom $280	Free Cancellation	Rating 6.5 2,542 reviews	Search Avianca flights
LATAM Airlines	PriceFrom $317	Free Cancellation	Rating 7.4 1,989 reviews	Search LATAM Airlines flights
Copa Airlines	PriceFrom $346	Free Cancellation	Rating 7.6 1,555 reviews	Search Copa Airlines flights

Why use momondo?

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

It is quick and easy to find Washington, D.C. to Argentina flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Argentina that suits you.

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

momondo does allow users to show only those flights to Argentina 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 Argentina?

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 Washington, D.C. to Argentina.

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

If you are not ready to book a flight from Washington, D.C. to Argentina now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Argentina and let you know when they change.