Find Cheap Flights from Washington to Buenos Aires (WAS - BUE)

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Wed 11/22
Wed 11/29
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Good to Know

Low Season:
November
Best time to beat the crowds
2%
expected price decrease
High Season:
December
Most popular time to fly
0%
expected price increase
Average Price:
$1124
(avg. price over the last 2 weeks)
Good Deal:
$997
or less (round trip)

When to Book Flights from Washington to Buenos Aires

Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

The cheapest flight from Washington to Buenos Aires was found 54 days before departure, on average.
Book at least 2 weeks before departure in order to get a below-average price.
Morning departure is around 10% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking Washington to Buenos Aires Flights

How long does a flight from Washington to Buenos Aires take?
An average nonstop flight takes 13h 12m, covering a distance of 5217 miles.
Which airlines provide the cheapest flights from Washington to Buenos Aires?
In the past 3 days, the cheapest round-trip tickets were found on Copa Airlines ($791), Multiple Airlines ($899) and LATAM Airlines ($913).
Do I need a passport to fly between Washington and Buenos Aires?
Yes.
What’s the cheapest day of the week to fly Washington to Buenos Aires?
For Washington to Buenos Aires, Thursday is the cheapest day to fly on average and Friday is the most expensive. Flying from Buenos Aires back to Washington, the best deals are generally found on Monday, with Thursday being the most expensive.

Book cheap flights from Washington to Buenos Aires (round-trip)

Airports
Origin
Washington
$791
only
$791
$899
only
$899
Destination
Buenos Aires
$918
only
$918
$791
only
$791
Thu, Mar 15
IAD
EZE
14h 44m
Thu, Apr 5
EZE
IAD
14h 22m
Trip: 22 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 5850 reviews
Overall
8.1
Boarding
8.1
Comfort
7.9
Crew
8.3
Entertainment
7.5
Food
7.6
SJO
PTY
Excellent 8.3

Food was good. Crew was efficient and friendly.

I️ think the crew could have come around with drinks more than once in a 5 hour flight.

MIA
PTY
Excellent 8.0

The flight was on time and the crew was nice

Food was not good and since the plane was old, entertainment was poor

GEO
PTY
Excellent 8.0

2 free checked bags, east boarding, friendly crew, really good airplane food, smooth flight

Only some flight attendants spoke English even though we departed from an English speaking country, headphone jack stopped working an hour into the flight

PTY
GYE
Mediocre 2.0

Unfriendly staff at Panama airport

LAX
PTY
Mediocre 2.0

They denied me from boarding due to documents missing even though I had my American passport

Thu, Mar 15
DCA
EZE
14h 35m
Thu, Apr 5
EZE
DCA
13h 45m
Trip: 22 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Dec 6
DCA
EZE
36h 59m
Mon, Dec 11
EZE
DCA
24h 10m
Trip: 6 days
7.6GoodShow reviews
Overall 7.6 Good
Based on 2600 reviews
Overall
7.7
Boarding
7.6
Comfort
7.5
Crew
8.1
Entertainment
7.5
Food
7.2
IAD
LIM
Excellent 10.0

Staff is on top of everything on every aspect, from beginning to end. My favorite airline, far away from the rest, crew seems eager to help and make your trip the best possible experience.

Everything was great.

BOG
CTG
Good 6.3

Comfortable seats.

Food and drink service not given. There was no turbulence to justify this failure, and flight was over an hour long, allowing sufficient time to provide it. Poor communication of departure delay.

AEP
SCL
Mediocre 3.3

Arriving in SCL on an international flight is the pits. Avoid

SCL
CJC
Excellent 10.0

My first flight on LATAM and very impressed. Fast boarding, lots of help for an English speaking passenger in Chile, newer plane, clean, and efficient flight attendants. I'll be back!

MEL
SCL
Excellent 10.0

Everything was good. Cabin crew were very kind in serving.

There was nothing that I did not like

Mon, Jan 22
IAD
AEP
21h 25m
Tue, Jan 30
AEP
IAD
19h 00m
Trip: 9 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Jan 15
IAD
EZE
13h 50m
Mon, Feb 5
EZE
IAD
16h 12m
Trip: 22 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 13622 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.5
Food
7.3
CVG
BOS
Good 7.0

Friendly crew with modern plane

Why am I paying for first class for just snacks I can buy in an airport shop?

MSP
ATL
Good 6.6

On the MSP to ATL leg the gate crew made a huge deal about checking rolling bags. They even stopped us at check-in and nearly begged us to check our bags pointing to the backed up jetway. But we had a lot of unpacking to do before checking our bags so we politely declined three times. On getting to our seats there were at least 8 open slots for bags near us. I heard a crew member call forward to say "tell them no more rollaboards" so they forced everyone left to check. On departure they slammed shut several very large empty overheads. WTF

AMS
DTW
Excellent 10.0

Everything was Excellent

Excellent job and keep it up

SFO
SEA
Excellent 10.0

The t.v. 's at each seat

Nothing

ALB
DTW
Okay 4.0

Good seat

Delayed by 1 hr

Tue, Feb 6
DCA
EZE
22h 20m
Tue, Feb 20
EZE
DCA
21h 23m
Trip: 15 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 51333 reviews
Overall
7.2
Boarding
7.3
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
MFE
IAH
Good 6.3

No snack

EWR
PHX
Excellent 8.6

Again expectation can get in the way. And of course the airline needs for flights to be as full as possible. In order to be profitable in the long run. We all want them to be able to stay in business

Same point - the point was full and I’ve already clarified that .

SFO
RNO
Mediocre 3.0

Flight was on time and I received my checked baggage.

Seat was uncomfortable due to insufficient foot space. All (about 6) overhead bins in the rear of the aircraft were full because crew stored “essential equipment” in them. Crew was not professional. After takeoff they never came around to see if anyone needed anything and not even a glass of water was offered for the entire flight. They didn’t even ensure that everyone wore seatbelts on landing - woman next to me was stretched out hugging her companion while landing wilth unbuckled seatbelt. Entertainment screen did not wirk properly.

MRY
LAX
Good 6.3

Boarding was organized and prompt. Crew was fantastic.

Flight was to short.

HNL
LAX
Excellent 9.3

Fast service

Wi-Fi cost too much

Sun, Feb 18
IAD
EZE
23h 43m
Wed, Feb 28
EZE
IAD
21h 05m
Trip: 11 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 6487 reviews
Overall
8.1
Boarding
8.1
Comfort
8.1
Crew
8.3
Entertainment
8.0
Food
7.6
SJO
PTY
Excellent 8.6

Very smooth day at the airport and in travel. Thank you Avianca

UIO
MEC
Good 7.3

Quick flight

No entertainment

SAL
JFK
Excellent 8.0

The professionalism of the airline and the crew was good

The long wait to board and immigration

MIA
BAQ
Excellent 10.0

Comfortable chairs great staff

SJO
SAL
Excellent 8.0

Duty free in El Salvador rocks, great choices and un real prices

The food on the plane was edible but far from being good, it’s airplane food so all good

Fri, Jan 12
DCA
EZE
13h 12m
Sun, Jan 21
EZE
DCA
19h 53m
$1407
Trip: 10 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 25306 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
MIA
ORD
Excellent 10.0

All prompt boarding smooth flight early arrival

EZE
LIM
Excellent 10.0

The food was fabulous!

BOS
JFK
Okay 5.0

The crew was really nice and caring

The music and entertainment collection was very limited

JFK
DCA
Excellent 8.0

Went smoothly

LAX
DFW
Okay 4.0

American Airlines lost one of my bags They also lost one of Dsrnell Wilson's bags as well

Fri, Jan 12
DCA
AEP
21h 00m
Sun, Jan 21
AEP
DCA
31h 03m
$1447
Trip: 10 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 2652 reviews
Overall
7.5
Boarding
7.6
Comfort
7.1
Crew
8.0
Entertainment
7.2
Food
6.7
AEP
GRU
Excellent 8.3

The extremely rigid limitation of 8Kg for carry on is not what I would expect from a non-Low cost air company. For business travellers it is very important to save baggage collection time at the destination airport.

GRU
CDG
Mediocre 2.0

Nothing, it was by far the worst fly experience I've ever had.

I did not like everything: a) 24 hours of delay. We were suppose to fly from Buenos Aires to Paris through Sao Paulo. Instead of flying to Sao Paulo they went to Rio de Janeiro. The excuse was that "there are too many planes in the airport and we don't have enough fuel to wait in the air". Very encouraging! In case of emergency they have enough fuel for let's say 30 additional minutes. b) Once we arrive to Rio, instead of letting us fly to our final destinations from there (yes, there were many, many flights from there) they decided to let us wait 3 hours with all the uncertainty and of course no food (2 AM in the morning). We finally flew back to Sao Paulo. No one from LATAM was there, so we literally didn't know what to do. The police came after 40 minutes and they finally called LATAM. c) They lost my luggage. LAN and TAM used to be quite good. LATAM is just too bad.

SSA
BSB
Mediocre 2.0

Flight was late, the sits were uncomfortable, there was no food offered.

GRU
BCN
Okay 5.6

Flight crew. Boarding process

Very unfriendly and difficult process to select seats. Impossible and almost unfriendly personnel, process to attempt to buy upgrade to. Haines even though 1/2 seats available. What a shame for an otherwise good experience.

MVD
GRU
Good 6.0

Food

Sat, Apr 7
IAD
EZE
33h 57m
Tue, Apr 17
EZE
IAD
14h 22m
Trip: 11 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 5850 reviews
Overall
8.1
Boarding
8.1
Comfort
7.9
Crew
8.3
Entertainment
7.5
Food
7.6
SJO
PTY
Excellent 8.3

Food was good. Crew was efficient and friendly.

I️ think the crew could have come around with drinks more than once in a 5 hour flight.

PTY
LIM
Excellent 9.6

King Arthur: Legend of the Sword is an awful movie, but that’s not your fault, I blame the cast & Directer. ;)

LAX
PTY
Excellent 9.6

THE SERVICE WAS EXCELLENT AND THE CREW WAS HELPFUL, POLITE AND FRIENDLY.

THE SEATS WERE COMFORTABLE BUT DID NOT FULLY EXTEND. IT WAS NOT EASY TO SET THEM IN THE DESIRED POSITION BECAUSE OF THE BOTTONS THAT DID NOT ALWAYS RESPOND THE REQUEST.

MGA
PTY
Excellent 8.3

Like the Vesel, confort and crew where on point They where only airline that actually , gave something to eat at no cost , an example of what we used to have with Americans main airlines

Honestly it was our best flight , You should take Note ant get back to basics !!! Sometimes in most cases good service outlast, values and shortages, I️ believe that American Airlines should strive to take and maintain the lead as the leaders we are in the world

PTY
MEX
Good 7.3

on time

terrible food

Mon, Dec 11
IAD
EZE
34h 18m
Mon, Dec 18
EZE
IAD
28h 13m
Trip: 8 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 5850 reviews
Overall
8.1
Boarding
8.1
Comfort
7.9
Crew
8.3
Entertainment
7.5
Food
7.6
SJO
PTY
Excellent 8.3

Food was good. Crew was efficient and friendly.

I️ think the crew could have come around with drinks more than once in a 5 hour flight.

PTY
LIM
Excellent 9.6

King Arthur: Legend of the Sword is an awful movie, but that’s not your fault, I blame the cast & Directer. ;)

PTY
MEX
Good 7.3

on time

terrible food

PTY
GYE
Mediocre 2.0

Unfriendly staff at Panama airport

MIA
PTY
Excellent 8.0

The flight was on time and the crew was nice

Food was not good and since the plane was old, entertainment was poor

Mon, Jan 22
IAD
AEP
21h 25m
Sat, Feb 10
AEP
IAD
25h 55m
Trip: 20 days
7.6GoodShow reviews
Overall 7.6 Good
Based on 2600 reviews
Overall
7.7
Boarding
7.6
Comfort
7.5
Crew
8.1
Entertainment
7.5
Food
7.2
LIM
EZE
Good 7.0

Timely and leg room ok.

I’d rather have the option to buy good food than to get prepaid substandard food. No entertainment system available but these days everybody brings their own tablet anyway. Crew was polite and professional.

IAD
LIM
Excellent 10.0

Staff is on top of everything on every aspect, from beginning to end. My favorite airline, far away from the rest, crew seems eager to help and make your trip the best possible experience.

Everything was great.

SCL
LIM
Okay 5.6

My flight to Lima was delayed therefore I would miss the connecting flight to LAX. I learned of the delay by overhearing a conversation the employee was having with another passenger. No announcement was made, no options were presented to help the passengers with connection find a solution until we started demanding a solution. This ordeal started at 9pm and we did not make it out of the airport till 1:50am to a hotel for a 6am pickup back to the airport to start the process all over again.

BOG
CTG
Good 6.3

Comfortable seats.

Food and drink service not given. There was no turbulence to justify this failure, and flight was over an hour long, allowing sufficient time to provide it. Poor communication of departure delay.

SCL
CJC
Excellent 10.0

My first flight on LATAM and very impressed. Fast boarding, lots of help for an English speaking passenger in Chile, newer plane, clean, and efficient flight attendants. I'll be back!

Sun, Feb 11
IAD
EZE
33h 20m
Sun, Feb 18
EZE
IAD
21h 06m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Jan 16
DCA
EZE
17h 35m
Fri, Feb 2
EZE
DCA
21h 45m
Trip: 18 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 13622 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.5
Food
7.3
ALB
DTW
Okay 4.0

Good seat

Delayed by 1 hr

NAS
JFK
Excellent 8.0

Good service smooth flight

The food on bosrd

PDX
LAX
Mediocre 2.0

none of it

It was Terrible I will never do it again

ATL
EWR
Okay 5.0

Crew was nice. Flight very smooth

We had to get seats at boarding because of the flight delay. She offered us two seats in the back. I knew they don't pushback so I said no. She had given the woman ahead of me two seats in comfort plus. Did not offer that and was rude. There were at least a few empty seats in that area. As a courtesy to us having 1)been delayed in Costa Rica. And then 2) a long wait for the connecting flight in Atlanta it would have been reasonable to offer those seats. Which remained empty

DTW
CVG
Excellent 10.0

Everything was excellent

Excellent job and keep it up

Sat, Apr 7
IAD
EZE
13h 44m
Sat, Apr 21
EZE
IAD
14h 22m
Trip: 15 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 5850 reviews
Overall
8.1
Boarding
8.1
Comfort
7.9
Crew
8.3
Entertainment
7.5
Food
7.6
PTY
SFO
Excellent 9.0

Again the crew was amazingly polite.

I had to sit next to a very overweight person and it was super uncomfortable.

SJO
PTY
Excellent 8.3

Food was good. Crew was efficient and friendly.

I️ think the crew could have come around with drinks more than once in a 5 hour flight.

PTY
GYE
Mediocre 2.0

Unfriendly staff at Panama airport

MGA
PTY
Excellent 8.3

Like the Vesel, confort and crew where on point They where only airline that actually , gave something to eat at no cost , an example of what we used to have with Americans main airlines

Honestly it was our best flight , You should take Note ant get back to basics !!! Sometimes in most cases good service outlast, values and shortages, I️ believe that American Airlines should strive to take and maintain the lead as the leaders we are in the world

GEO
PTY
Excellent 8.0

2 free checked bags, east boarding, friendly crew, really good airplane food, smooth flight

Only some flight attendants spoke English even though we departed from an English speaking country, headphone jack stopped working an hour into the flight

Sun, Jan 7
IAD
AEP
18h 10m
Sun, Jan 28
AEP
IAD
22h 25m
Trip: 22 days
7.6GoodShow reviews
Overall 7.6 Good
Based on 2600 reviews
Overall
7.7
Boarding
7.6
Comfort
7.5
Crew
8.1
Entertainment
7.5
Food
7.2
AEP
SCL
Mediocre 3.3

Arriving in SCL on an international flight is the pits. Avoid

SCL
CJC
Excellent 10.0

My first flight on LATAM and very impressed. Fast boarding, lots of help for an English speaking passenger in Chile, newer plane, clean, and efficient flight attendants. I'll be back!

SCL
LIM
Okay 5.6

My flight to Lima was delayed therefore I would miss the connecting flight to LAX. I learned of the delay by overhearing a conversation the employee was having with another passenger. No announcement was made, no options were presented to help the passengers with connection find a solution until we started demanding a solution. This ordeal started at 9pm and we did not make it out of the airport till 1:50am to a hotel for a 6am pickup back to the airport to start the process all over again.

PUQ
SCL
Okay 4.0

Fairly cheap

No food or drink. Ridiculously small baggage allowed on plane

SCL
LPB
Good 6.0

LATAM flights to Bolivia from Chile leave at horrible hours.

Wed, Dec 6
DCA
EZE
14h 25m
Mon, Dec 18
EZE
DCA
17h 17m
$1017
Trip: 13 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 51333 reviews
Overall
7.2
Boarding
7.3
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
EWR
PHX
Excellent 8.6

Again expectation can get in the way. And of course the airline needs for flights to be as full as possible. In order to be profitable in the long run. We all want them to be able to stay in business

Same point - the point was full and I’ve already clarified that .

SFO
PSC
Excellent 10.0

The service as soon as I walked in the first airport until I walked out the last one was excellent for this trip

LAX
ORD
Okay 4.3

Left a little early

Smaller seats, no video or music options on a almost four hour flight. Why United why?

HNL
LAX
Excellent 9.3

Fast service

Wi-Fi cost too much

SFO
ORD
Mediocre 3.6

Flight left 6 hours late with only vague explanations. Simply, "we had to get our equipment in the right places." Attempts to standby on 3 other flights were fruitless and UA airport staff gave no direction or recommendations other than "were sorry."

Sun, Mar 4
IAD
AEP
43h 53m
Sun, Mar 25
AEP
IAD
22h 40m
Trip: 21 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Jan 25
IAD
EZE
13h 50m
Thu, Feb 15
EZE
IAD
13h 55m
Trip: 22 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 13622 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.5
Food
7.3
PDX
LAX
Mediocre 2.0

none of it

It was Terrible I will never do it again

DTW
CVG
Excellent 10.0

Everything was excellent

Excellent job and keep it up

ATL
EWR
Okay 5.0

Crew was nice. Flight very smooth

We had to get seats at boarding because of the flight delay. She offered us two seats in the back. I knew they don't pushback so I said no. She had given the woman ahead of me two seats in comfort plus. Did not offer that and was rude. There were at least a few empty seats in that area. As a courtesy to us having 1)been delayed in Costa Rica. And then 2) a long wait for the connecting flight in Atlanta it would have been reasonable to offer those seats. Which remained empty

CVG
BOS
Good 7.0

Friendly crew with modern plane

Why am I paying for first class for just snacks I can buy in an airport shop?

ALB
DTW
Okay 4.0

Good seat

Delayed by 1 hr

Sat, May 5
IAD
EZE
13h 44m
Sat, May 19
EZE
IAD
14h 22m
Trip: 15 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 5850 reviews
Overall
8.1
Boarding
8.1
Comfort
7.9
Crew
8.3
Entertainment
7.5
Food
7.6
MGA
PTY
Excellent 8.3

Like the Vesel, confort and crew where on point They where only airline that actually , gave something to eat at no cost , an example of what we used to have with Americans main airlines

Honestly it was our best flight , You should take Note ant get back to basics !!! Sometimes in most cases good service outlast, values and shortages, I️ believe that American Airlines should strive to take and maintain the lead as the leaders we are in the world

PTY
SFO
Excellent 9.0

Again the crew was amazingly polite.

I had to sit next to a very overweight person and it was super uncomfortable.

SJO
PTY
Excellent 9.6

The crew was super polite!

Seats were too cramped.

PTY
GYE
Mediocre 2.0

Unfriendly staff at Panama airport

LAX
PTY
Mediocre 2.0

They denied me from boarding due to documents missing even though I had my American passport

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