Cheap flights from Buenos Aires to Washington, D.C. from $358

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 9/26. 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
4:50 pm - 2:15 pm
EZE
-
IAD
22h 25m
1 stop
Avianca Logo
5:35 pm - 3:40 pm
IAD
-
EZE
21h 05m
2 stops
$675Avianca
Sun, Sep 27 - Sat, Oct 10
Copa Airlines Logo
2:49 pm - 4:20 am
EZE
-
IAD
14h 31m
1 stop
Copa Airlines Logo
9:35 am - 4:21 am
IAD
-
EZE
17h 46m
1 stop
$685Copa Airlines
Sun, Sep 27 - Sat, Oct 10
Avianca Logo
1:35 am - 2:15 pm
EZE
-
IAD
13h 40m
1 stop
Avianca Logo
3:35 pm - 5:40 am
IAD
-
EZE
13h 05m
1 stop
$691Avianca
Tue, Sep 8 - Tue, Sep 22
LATAM Airlines Logo
10:40 pm - 2:05 pm
EZE
-
DCA
16h 25m
1 stop
LATAM Airlines Logo
2:45 pm - 9:40 am
DCA
-
EZE
17h 55m
1 stop
$704LATAM Airlines
Mon, Jun 8 - Mon, Jun 15
American Airlines Logo
9:10 pm - 10:34 am
EZE
-
DCA
14h 24m
1 stop
American Airlines Logo
5:24 pm - 8:50 am
DCA
-
EZE
14h 26m
1 stop
$721American Airlines
Wed, Aug 5 - Wed, Aug 19
American Airlines Logo
10:35 pm - 6:22 pm
EZE
-
DCA
20h 47m
1 stop
American Airlines Logo
2:24 pm - 11:05 am
DCA
-
EZE
19h 41m
1 stop
$722American Airlines
Mon, Jun 22 - Mon, Jun 29
Delta Logo
8:10 pm - 9:11 am
EZE
-
DCA
14h 01m
1 stop
Delta Logo
7:30 pm - 9:45 am
DCA
-
EZE
13h 15m
1 stop
$750Delta
Fri, May 29 - Thu, Jun 4
Delta Logo
8:10 pm - 3:46 pm
EZE
-
BWI
20h 36m
1 stop
Delta Logo
4:51 pm - 9:45 am
BWI
-
EZE
15h 54m
1 stop
$764Delta
Fri, May 29 - Thu, Jun 4
LATAM Airlines Logo
3:45 pm - 5:11 pm
AEP
-
DCA
26h 26m
2 stops
LATAM Airlines Logo
5:00 pm - 7:40 pm
DCA
-
AEP
25h 40m
2 stops
$795LATAM Airlines
Fri, Jun 5 - Mon, Jun 8
United Airlines Logo
9:00 pm - 4:28 pm
EZE
-
BWI
20h 28m
1 stop
United Airlines Logo
3:03 pm - 8:00 am
BWI
-
EZE
15h 57m
1 stop
$813United Airlines
Tue, Sep 8 - Tue, Sep 22

Avianca flights from Buenos Aires to Washington, D.C.

Our best Avianca deals on Buenos Aires to Washington, D.C. flight tickets
Avianca
Sep 27
EZE4:50 pmBuenos Aires Ministro Pistarini
22h 25m
1 stop
IAD2:15 pmWashington, D.C. Dulles Intl
Oct 10
IAD5:35 pmWashington, D.C. Dulles Intl
21h 05m
2 stops
EZE3:40 pmBuenos Aires Ministro Pistarini
$675
Avianca
Sep 8
EZE1:35 amBuenos Aires Ministro Pistarini
13h 40m
1 stop
IAD2:15 pmWashington, D.C. Dulles Intl
Sep 22
IAD3:35 pmWashington, D.C. Dulles Intl
13h 05m
1 stop
EZE5:40 amBuenos Aires Ministro Pistarini
$691
Avianca
Sep 27
AEP7:00 amBuenos Aires Jorge Newbery
23h 20m
1 stop
IAD5:20 amWashington, D.C. Dulles Intl
Oct 10
IAD5:45 amWashington, D.C. Dulles Intl
22h 55m
2 stops
AEP5:40 amBuenos Aires Jorge Newbery
$695

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

Our best Copa Airlines deals on Buenos Aires to Washington, D.C. flight tickets
Copa Airlines
Sep 27
EZE2:49 pmBuenos Aires Ministro Pistarini
14h 31m
1 stop
IAD4:20 amWashington, D.C. Dulles Intl
Oct 10
IAD9:35 amWashington, D.C. Dulles Intl
17h 46m
1 stop
EZE4:21 amBuenos Aires Ministro Pistarini
$685
Copa Airlines
May 31
EZE2:49 pmBuenos Aires Ministro Pistarini
34h 44m
1 stop
IAD12:33 amWashington, D.C. Dulles Intl
Jun 6
IAD2:21 amWashington, D.C. Dulles Intl
23h 09m
1 stop
EZE2:30 amBuenos Aires Ministro Pistarini
$697
Copa Airlines
May 27
EZE9:02 amBuenos Aires Ministro Pistarini
31h 03m
1 stop
IAD3:05 pmWashington, D.C. Dulles Intl
Jun 3
IAD6:25 amWashington, D.C. Dulles Intl
17h 27m
1 stop
EZE12:52 amBuenos Aires Ministro Pistarini
$718

momondo Fare Finder

 
Customize your flight search to find flights from Buenos Aires to Washington, D.C. 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 May 12, 2026.
Use the filters below to find and compare flights from Buenos Aires to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

Sun 9/27

4:50 pm-2:15 pm

1 stop22h 25m

Washington, D.C. Dulles Intl

Sat 10/10

5:35 pm-3:40 pm

2 stops21h 05m

$675

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

Sun 9/27

2:49 pm-4:20 am

1 stop14h 31m

Washington, D.C. Dulles Intl

Sat 10/10

9:35 am-4:21 am

1 stop17h 46m

$685
Quickest round-trip

Buenos AiresWashington, D.C.

EZE - IAD

EZEIAD

Buenos Aires Ministro Pistarini

Tue 9/8

1:35 am-2:15 pm

1 stop13h 40m

Washington, D.C. Dulles Intl

Tue 9/22

3:35 pm-5:40 am

1 stop13h 05m

$691

Buenos AiresWashington, D.C.

EZE - DCA

EZEDCA

Buenos Aires Ministro Pistarini

Mon 6/8

10:40 pm-2:05 pm

1 stop16h 25m

Washington, D.C. Reagan-National

Mon 6/15

2:45 pm-9:40 am

1 stop17h 55m

$704

Buenos AiresWashington, D.C.

EZE - DCA

EZEDCA

Buenos Aires Ministro Pistarini

Wed 8/5

9:10 pm-10:34 am

1 stop14h 24m

Washington, D.C. Reagan-National

Wed 8/19

5:24 pm-8:50 am

1 stop14h 26m

$721

Buenos AiresWashington, D.C.

EZE - DCA

EZEDCA

Buenos Aires Ministro Pistarini

Mon 6/22

10:35 pm-6:22 pm

1 stop20h 47m

Washington, D.C. Reagan-National

Mon 6/29

2:24 pm-11:05 am

1 stop19h 41m

$722

Buenos AiresWashington, D.C.

EZE - DCA

EZEDCA

Buenos Aires Ministro Pistarini

Fri 5/29

8:10 pm-9:11 am

1 stop14h 01m

Washington, D.C. Reagan-National

Thu 6/4

7:30 pm-9:45 am

1 stop13h 15m

$750

Buenos AiresBaltimore

EZE - BWI

EZEBWI

Buenos Aires Ministro Pistarini

Fri 5/29

8:10 pm-3:46 pm

1 stop20h 36m

Baltimore/Washington

Thu 6/4

4:51 pm-9:45 am

1 stop15h 54m

$764

Buenos AiresWashington, D.C.

AEP - DCA

AEPDCA

Buenos Aires Jorge Newbery

Fri 6/5

3:45 pm-5:11 pm

2 stops26h 26m

Washington, D.C. Reagan-National

Mon 6/8

5:00 pm-7:40 pm

2 stops25h 40m

$795

Buenos AiresBaltimore

EZE - BWI

EZEBWI

Buenos Aires Ministro Pistarini

Tue 9/8

9:00 pm-4:28 pm

1 stop20h 28m

Baltimore/Washington

Tue 9/22

3:03 pm-8:00 am

1 stop15h 57m

$813

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.

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 typical price of a round-trip flight between Buenos Aires and Washington, D.C.?

What is the cheapest month to fly to Washington, D.C.?

The month of December is, on average, the cheapest month to fly to Washington, D.C. from Buenos Aires, with most prices found around $232. If you’re not able to fly to Washington, D.C. in December, then June is your next best option. Flight prices from Buenos Aires to Washington, D.C. during June average around $252.

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

You could potentially save up to 15% on your flight if you consider stops on a Buenos Aires to Washington, D.C. flight.

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

As of May 2026, prices for Buenos Aires to Washington, D.C. flights are approximately 5% more expensive when compared to flights at the same time last year.

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

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

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

Fastest flight time

14h 06m

Direct flights

None
The fastest flight from Buenos Aires to Washington, D.C. takes 14h 06m
There are no direct flights from Buenos Aires to Washington, D.C.. There are no popular flight routes from Buenos Aires to Washington, D.C..

Frequently asked questions about flying from Buenos Aires to Washington, D.C.

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

    Buenos Aires and Washington, D.C. are 5214.3 mi apart from one another. In terms of flight time, this usually takes a little over 14h 06m.

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

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

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

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

    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..

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

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

  • What is the most popular airline from Buenos Aires to Washington, D.C.?

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

Compare and see reviews for airlines that fly from Buenos Aires to Washington, D.C. with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $344Free CancellationRating
7.9
8,453 reviews
Search Delta flights
Copa AirlinesPriceFrom $378Free CancellationRating
7.5
1,584 reviews
Search Copa Airlines flights
AviancaPriceFrom $617Free CancellationRating
6.5
2,523 reviews
Search Avianca flights
American AirlinesPriceFrom $673Free CancellationRating
7.1
11,668 reviews
Search American 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
Waldorf
Woodbridge
Laurel
Gaithersburg
Colonial Beach
Fredericksburg
Silver Spring
Towson
Rockville
Manassas
Linthicum Heights
Tysons
Bethesda
Springfield
Fairfax
College Park

Why use momondo?

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

Finding the right flight to Washington, D.C. from Buenos Aires is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Washington, D.C. quick and easy, saving you time and money.

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.?

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 Buenos Aires to Washington, D.C..

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.

An easier way to manage your Washington, D.C. trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

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1 adult
Thu 6/11
Thu 6/18

Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.