Find Cheap Flights from Ontario to Buenos Aires (ONT - BUE)

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Looking for a cheap flight? 25% of our users found flights on this route for $855 or less.

FAQs for Booking Ontario to Buenos Aires Flights

How long does a flight from Ontario to Buenos Aires take?
An average nonstop flight takes 16h 35m, covering a distance of 6096 miles.
Which airlines provide the cheapest flights from Ontario to Buenos Aires?
In the past 3 days, the cheapest round-trip tickets were found on Air Canada ($1291), American Airlines ($1567) and Aeromexico ($1573).
Do I need a passport to fly between Ontario and Buenos Aires?
Yes.
What’s the cheapest day of the week to fly Ontario to Buenos Aires?
For Ontario to Buenos Aires, Wednesday is the cheapest day to fly on average and Friday is the most expensive. Flying from Buenos Aires back to Ontario, the best deals are generally found on Saturday, with Monday being the most expensive.

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

Airports
Origin
Ontario
$1291
only
$1291
Destination
Buenos Aires
$1291
only
$1291
Wed, Jan 24
ONT
EZE
28h 45m
Mon, Feb 5
EZE
ONT
27h 23m
$1291
Trip: 13 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 20219 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.9
Food
6.5
BGI
YYZ
Good 6.6

Crew was very friendly.

Having to pay for baggage on an international flight and no better snacks available without purchasing them.

HND
YYZ
Excellent 8.6

Had an aisle seat.

I thought boarding was more difficult than normal with the gate configuration. Hard to hear announcements.

YYZ
FLL
Okay 4.6

Late departure- even with snow issues have not had similar problems with WestJet

YVR
YOW
Mediocre 2.6

The fact that the in-flight meal was as cold as the crew, and you got to pay for that coldness. Just love it! You get me right?

The Montreal-Vancouver route was by far the worst. The attitude of the crew was denigrating and arrogant.

MSP
YYZ
Excellent 8.6

Crew and flight were great

Not great food, but that's ok.

Thu, Apr 19
ONT
EZE
16h 50m
Sun, Apr 29
EZE
ONT
17h 57m
$1567
Trip: 11 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 25953 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
LAS
JFK
Okay 5.0

Good leg room

5 plus hour flight and one movie as entertainment option shown on a tiny screen from cabin headliner. Like in the 1980’s. and do not forget your headphones or you will be buying some earbuds!

DCA
CLT
Excellent 10.0

seats were roomy, left early

SYD
LAX
Mediocre 3.3

We arrived safely. We were late but arrived safely. When we had to spend the night en route, the customer service desk was very kind and helpful.

Crew was grumpy and very unhelpful Lots of mechanical delays Kept being assured we would make our connections despite leaving late. In the end we had to change our route in order to have a chance at making it to our destination that day. Even that didn’t work though; we had to spend the night in Charlotte.

JFK
BCN
Excellent 10.0

much room. great entertainment. great crew

LAX
NRT
Mediocre 2.0

nothing

had to take another flight, ticket agent was able to change me to a different flight on JAL. however, JAL could not access the ticket info and ticket agent would not take my payment. result was missing that flight, ticket manager told me it's my fault and tough luck no refund. American airlines told me the same, ended up losing my money for the ticket purchase. i booked another new flight with another airline direct. worst experience in my life using kayak.

Sat, Dec 23
ONT
EZE
17h 04m
Sat, Dec 30
EZE
ONT
27h 09m
$1573
Trip: 8 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 4690 reviews
Overall
7.4
Boarding
7.3
Comfort
7.3
Crew
7.7
Entertainment
7.1
Food
6.9
MEX
CUN
Excellent 8.3

Que solo tengan cacahuates y el avión no tenía pinta de haber sido aseado antes de abordar

PVR
MEX
Good 6.0

I enjoyed the movies on board, entertainment great!

This my 3rd trip to PVR on airline. As a delta frequent flyer I have always gotten upgraded or standby list. For what ever reason on my return it seemed staff working at airport today ALL gave me false info and finally in the end when I wanted to pay for upgrade told flight sold out ! False ! 3 Empty AM Plus seats 5 Ross in front of me . So I was separated from my friends as they sat in first class. I blame the gate staff since none had a clue ! Horrible e periwnce for first time at Mexico City airport. We also left Aweomexico lounge since was dirty and went to American Express Lounge that was clean z

MEX
TIJ
Good 6.3

More leg room in business class, extra luggage

No personal entertainment, no power ports, no hot food.

MLM
MEX
Mediocre 2.0

Couldn’t make the connection because the flight was oversold!!!!

LAX
GDL
Okay 4.0

Nothing Aeromexico personal was rude again

They said that we need to paid them the baggage’s and didn’t want to solve the situation. Be Aware if you book a trip with this two airline as you will finish paying twice the baggage fees. THEY STEAL YOUR MONEY!!

Fri, Feb 9
ONT
EZE
17h 00m
Sat, Feb 24
EZE
ONT
19h 16m
$1741
Trip: 16 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 52264 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
JAX
EWR
Excellent 8.0

Waffle cookies were amazing

HNL
SFO
Good 6.0

Boarding goes quick, nice seats in economy comfort

No free food besides pretzels on an almost 8 hour flight. Any decent seat is an upchaege to economy plus. WiFi slow, only can access entertainment if you have app download on phone.

RSW
EWR
Excellent 8.0

Boarding and entertainment were good..

Over an hour delayed and unlesss you pay up the seating is very cramped

IAH
IND
Excellent 8.6

Terrific Gate Team in Houston, who were extremely helpful with my current disability (my foot is in a walking boot). Gate agent immediately approached me once I got to the gate (via wheelchair) to see if I needed anything else. Then she took it upon herself to move my seat so that I had an empty row on the flight to prop my leg up on the flight, which was excellent customer service. She anticipated my needs & exceeded them. She signaled for me to board early, so I had enough time & space to get down the ramp. Gate agents like her are hard to find these days. I wish there were more agents like her. Flight to Indy- Plane were more spacious between the seats. My knees had 6”-8” between them & the seat in front of them. It was a new plane, so if this is the direction that United is going with their aircrafts, they will have lots of happy flyers.

It was recommended to download the United app for free inflight Enterainment once I purchased the inflight WiFi. After purchased, none of the movies or tv shows would play. It seemed like slow WiFi was making it impossible to utilize the Entertainment promoted by United.

EWR
LHR
Okay 5.3

Boarding was delayed because the aircraft was being serviced. None of the tray tables or screens were cleaned. They looked like people sneezed on them. Disgusting.

Sun, May 13
ONT
EZE
35h 15m
Thu, May 17
EZE
ONT
27h 26m
$2291
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Jan 1
ONT
EZE
16h 46m
Fri, Jan 19
EZE
ONT
18h 06m
$1717
Trip: 19 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 25953 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
LAX
PHL
Excellent 10.0

A great flight

No real food to eat

LAX
PHL
Excellent 10.0

Wonderful flight

The only thing I didn’t like is that he have any fresh food they said something was going on in LA that prevented him from giving us actual food other than that everything else was fine

DCA
CLT
Excellent 10.0

seats were roomy, left early

SYD
LAX
Mediocre 3.3

We arrived safely. We were late but arrived safely. When we had to spend the night en route, the customer service desk was very kind and helpful.

Crew was grumpy and very unhelpful Lots of mechanical delays Kept being assured we would make our connections despite leaving late. In the end we had to change our route in order to have a chance at making it to our destination that day. Even that didn’t work though; we had to spend the night in Charlotte.

LAS
JFK
Okay 5.0

Good leg room

5 plus hour flight and one movie as entertainment option shown on a tiny screen from cabin headliner. Like in the 1980’s. and do not forget your headphones or you will be buying some earbuds!

Mon, Jun 18
ONT
EZE
21h 05m
Thu, Jun 21
EZE
ONT
31h 53m
$1814
Trip: 4 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 20219 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.9
Food
6.5
LGA
YYZ
Okay 4.0

Direct

9:30 flight finally took odd at 11:30 .... delayed and had to set on the runway. Arrivedabd gad to wait 30 min for gate. Will be in terms mal by 1:30

MIA
YYZ
Mediocre 3.0

no flights between noon and 9pm. pay for snacks..on westjet they were free

YVR
YOW
Mediocre 2.6

The fact that the in-flight meal was as cold as the crew, and you got to pay for that coldness. Just love it! You get me right?

The Montreal-Vancouver route was by far the worst. The attitude of the crew was denigrating and arrogant.

YYZ
FLL
Okay 4.6

Late departure- even with snow issues have not had similar problems with WestJet

YUL
CMN
Mediocre 2.6

No entertainment Little to no food or drinks Some crew were rude

For the trip to finish

Sun, Dec 31
ONT
EZE
16h 46m
Thu, Jan 18
EZE
ONT
18h 06m
$1797
Trip: 19 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 25953 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
PWM
DCA
Okay 5.3

Wish they had told me there was a shuttle to other side of airport. Had not been to this airport in many years.

LAS
JFK
Okay 5.0

Good leg room

5 plus hour flight and one movie as entertainment option shown on a tiny screen from cabin headliner. Like in the 1980’s. and do not forget your headphones or you will be buying some earbuds!

LAX
PHL
Excellent 10.0

A great flight

No real food to eat

LAX
PHL
Excellent 10.0

Wonderful flight

The only thing I didn’t like is that he have any fresh food they said something was going on in LA that prevented him from giving us actual food other than that everything else was fine

JFK
BCN
Excellent 10.0

much room. great entertainment. great crew

Sat, Jun 23
ONT
EZE
16h 35m
Sat, Jun 30
EZE
ONT
26h 28m
$2001
Trip: 8 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 52264 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
MIA
EWR
Mediocre 2.0

Nothing

The flight was over 4 hours delayed, and I didn't receive a notification that it was delayed until an hour after the flight was supposed to take off, which would have been ideal given that I had to pay 5x surge pricing for my uber to get there by the original scheduled time. Once we were about to board the plane, we were told again that it was further delayed. The crew was cranky and tired as they had clearly been dealing with delay issues the whole day. There were no tv's on the flight and we were told there would be free wifi to stream to our phones, however the wifi was so slow that it couldn't even load a single picture from the internet. Oh, there were also no decent food options on the flight. I will avoid United at all costs in the future, as my flight down was also over 3 hours delayed.

JAX
EWR
Excellent 8.0

Waffle cookies were amazing

EWR
CLT
Good 7.3

very comfortable seats, and plane landed early

no free entertainment for personal devices. screen was broken and controller did not work.

SBN
ORD
Mediocre 2.0

Can’t think of a thing on this flight.

Delay after delay. Took way too long for de-icing. The storage compartmemt door got stuck and I could not get my bag out. The flight attendant blamed the issue on my bag. She claimed it was too big. It was not. I have carried the bag on several flights with similar planes, the gate agent slowed it on the plane as many have, and I had no issue opening and closing other compartment as I tried a couple after maintenance retrieved my bag.

ORD
DSM
Excellent 8.6

The crew was polite and professional. Thanks

Cannot think of a thing

Fri, Mar 30
ONT
EZE
41h 20m
Sun, Apr 1
EZE
ONT
34h 08m
$8141
Trip: 3 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 13947 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
SFO
LHR
Good 7.3

Fresh food

LHR
ORD
Mediocre 2.0

No one could help. Finnair wouldn’t issue a refund. British Airways were not helpful.

Everything

LHR
LAS
Mediocre 3.3

This seems like an old plane. Poor quality of screen to watch movies and very small selection of movies. No charging spot to plug and charge our phones. This was a long trip and these two elements are important to make the trip enjoyable.

MXP
LHR
Excellent 8.0

Flight was not to crowded

Seat are smaller than usual

FRA
LHR
Mediocre 2.0

Absolute nightmare dealing with British cancelled flight and then having them rebook me with American, their "partner" company. Spent three hours this morning dealing with these two unprofessional companies and their lack of communication between each other.

*
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