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Cheap flights from Ontario to Buenos Aires from $520

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Ontario to Buenos Aires

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:08 pm - 6:35 amONT  Ontario-EZE Buenos Aires Ministro Pistarini
31h 27m3 stops Dallas/Fort Worth Miami Punta Cana
Multiple Airlines Logo
9:10 am - 10:45 amEZE  Buenos Aires Ministro Pistarini-ONT Ontario
30h 35m3 stops Panama City Tocumen Intl Miami Denver Intl
$1,014Multiple Airlines
Thu, Nov 26 - Wed, Dec 9
Multiple Airlines Logo
5:07 pm - 5:00 amONT  Ontario-EZE Buenos Aires Ministro Pistarini
30h 53m3 stops Las Vegas Harry Reid Intl Orlando Punta Cana
Multiple Airlines Logo
2:40 pm - 6:31 pmEZE  Buenos Aires Ministro Pistarini-ONT Ontario
32h 51m3 stops Miami Houston George Bush Intcntl Las Vegas Harry Reid Intl
$1,027Multiple Airlines
Sat, Nov 14 - Sun, Dec 6
Multiple Airlines Logo
6:08 pm - 6:35 amONT  Ontario-EZE Buenos Aires Ministro Pistarini
31h 27m3 stops Dallas/Fort Worth Miami Punta Cana
Multiple Airlines Logo
2:40 pm - 10:45 amEZE  Buenos Aires Ministro Pistarini-ONT Ontario
25h 05m2 stops Miami Denver Intl
$1,066Multiple Airlines
Thu, Nov 26 - Wed, Dec 9
Multiple Airlines Logo
5:07 pm - 5:00 amONT  Ontario-EZE Buenos Aires Ministro Pistarini
30h 53m3 stops Las Vegas Harry Reid Intl Orlando Punta Cana
Multiple Airlines Logo
2:40 pm - 10:45 amEZE  Buenos Aires Ministro Pistarini-ONT Ontario
25h 05m2 stops Miami Denver Intl
$1,098Multiple Airlines
Sat, Nov 14 - Sun, Dec 6
Multiple Airlines Logo
6:30 am - 10:05 pmONT  Ontario-EZE Buenos Aires Ministro Pistarini
34h 35m3 stops Denver Intl Chicago O'Hare Intl Punta Cana
Multiple Airlines Logo
2:40 pm - 10:45 amEZE  Buenos Aires Ministro Pistarini-ONT Ontario
25h 05m2 stops Miami Denver Intl
$1,117Multiple Airlines
Sun, Nov 8 - Wed, Dec 2
Multiple Airlines Logo
6:37 pm - 3:00 amONT  Ontario-EZE Buenos Aires Ministro Pistarini
27h 23m3 stops Guadalajara Miguel Hidal Bogotá El Dorado Lima J Chavez Intl
Multiple Airlines Logo
8:05 pm - 11:58 pmEZE  Buenos Aires Ministro Pistarini-ONT Ontario
32h 53m3 stops Lima J Chavez Intl Bogotá El Dorado Guadalajara Miguel Hidal
$1,125Multiple Airlines
Mon, Nov 16 - Wed, Dec 2
Multiple Airlines Logo
5:07 pm - 5:00 amONT  Ontario-EZE Buenos Aires Ministro Pistarini
30h 53m3 stops Las Vegas Harry Reid Intl Orlando Punta Cana
Multiple Airlines Logo
2:40 pm - 10:45 amEZE  Buenos Aires Ministro Pistarini-ONT Ontario
25h 05m2 stops Miami Denver Intl
$1,136Multiple Airlines
Sat, Nov 14 - Sun, Dec 6
Multiple Airlines Logo
5:07 pm - 5:00 amONT  Ontario-EZE Buenos Aires Ministro Pistarini
30h 53m3 stops Las Vegas Harry Reid Intl Orlando Punta Cana
Multiple Airlines Logo
2:40 pm - 11:51 amEZE  Buenos Aires Ministro Pistarini-ONT Ontario
26h 11m3 stops Miami Denver Intl Las Vegas Harry Reid Intl
$1,152Multiple Airlines
Sat, Nov 14 - Sun, Dec 6
Multiple Airlines Logo
5:07 pm - 5:00 amONT  Ontario-EZE Buenos Aires Ministro Pistarini
30h 53m3 stops Las Vegas Harry Reid Intl Orlando Punta Cana
Multiple Airlines Logo
4:50 pm - 10:45 amEZE  Buenos Aires Ministro Pistarini-ONT Ontario
22h 55m3 stops Bogotá El Dorado Miami Denver Intl
$1,155Multiple Airlines
Sat, Nov 14 - Sun, Dec 6
Multiple Airlines Logo
6:37 pm - 3:00 amONT  Ontario-EZE Buenos Aires Ministro Pistarini
27h 23m3 stops Guadalajara Miguel Hidal Bogotá El Dorado Lima J Chavez Intl
Multiple Airlines Logo
2:40 am - 10:15 pmEZE  Buenos Aires Ministro Pistarini-ONT Ontario
24h 35m2 stops Medellín Jose Maria Cordova Intl Guadalajara Miguel Hidal
$1,156Multiple Airlines
Wed, Nov 25 - Thu, Dec 3

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United Airlines flights from Ontario to Buenos Aires

Our best United Airlines deals on Ontario to Buenos Aires flight tickets
United Airlines
Mar 18
ONT6:00 amOntario
22h 20m
1 stop
EZE8:20 amBuenos Aires Ministro Pistarini
Mar 31
EZE9:00 pmBuenos Aires Ministro Pistarini
24h 47m
2 stops
ONT5:47 pmOntario
$1,268
United Airlines
Jan 21
ONT6:00 amOntario
20h 20m
1 stop
EZE7:20 amBuenos Aires Ministro Pistarini
Feb 11
EZE11:55 pmBuenos Aires Ministro Pistarini
22h 40m
2 stops
ONT5:35 pmOntario
$1,272
United Airlines
Dec 1
ONT6:00 amOntario
20h 20m
2 stops
EZE7:20 amBuenos Aires Ministro Pistarini
Dec 8
EZE10:05 pmBuenos Aires Ministro Pistarini
19h 29m
2 stops
ONT12:34 pmOntario
$1,276

Delta flights from Ontario to Buenos Aires

Our best Delta deals on Ontario to Buenos Aires flight tickets
Delta
Mar 21
ONT7:00 amOntario
46h 50m
2 stops
EZE9:50 amBuenos Aires Ministro Pistarini
Mar 31
EZE1:10 pmBuenos Aires Ministro Pistarini
26h 17m
2 stops
ONT11:27 amOntario
$1,298
Delta
Nov 12
ONT11:10 pmOntario
30h 45m
2 stops
EZE10:55 amBuenos Aires Ministro Pistarini
Nov 25
EZE8:05 pmBuenos Aires Ministro Pistarini
28h 44m
2 stops
ONT7:49 pmOntario
$1,310
Delta
Oct 26
ONT11:15 pmOntario
27h 05m
2 stops
EZE6:20 amBuenos Aires Ministro Pistarini
Nov 10
EZE5:00 pmBuenos Aires Ministro Pistarini
23h 03m
2 stops
ONT11:03 amOntario
$8,328

momondo Fare Finder

 
Use the filters below to find and compare flights from Ontario to Buenos Aires that are best for you.

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Price

Cheapest round-trip

OntarioBuenos Aires

ONT Ontario - EZE Buenos Aires Ministro Pistarini

ONTEZE

Ontario

Thu 11/26

6:08 pm-6:35 am

3 stops31h 27m

Buenos Aires Ministro Pistarini

Wed 12/9

9:10 am-10:45 am

3 stops30h 35m

$1,014

OntarioBuenos Aires

ONT Ontario - EZE Buenos Aires Ministro Pistarini

ONTEZE

Ontario

Sat 11/14

5:07 pm-5:00 am

3 stops30h 53m

Buenos Aires Ministro Pistarini

Sun 12/6

2:40 pm-6:31 pm

3 stops32h 51m

$1,027

OntarioBuenos Aires

ONT Ontario - EZE Buenos Aires Ministro Pistarini

ONTEZE

Ontario

Thu 11/26

6:08 pm-6:35 am

3 stops31h 27m

Buenos Aires Ministro Pistarini

Wed 12/9

2:40 pm-10:45 am

2 stops25h 05m

$1,066

OntarioBuenos Aires

ONT Ontario - EZE Buenos Aires Ministro Pistarini

ONTEZE

Ontario

Sat 11/14

5:07 pm-5:00 am

3 stops30h 53m

Buenos Aires Ministro Pistarini

Sun 12/6

2:40 pm-10:45 am

2 stops25h 05m

$1,098

OntarioBuenos Aires

ONT Ontario - EZE Buenos Aires Ministro Pistarini

ONTEZE

Ontario

Sun 11/8

6:30 am-10:05 pm

3 stops34h 35m

Buenos Aires Ministro Pistarini

Wed 12/2

2:40 pm-10:45 am

2 stops25h 05m

$1,117

OntarioBuenos Aires

ONT Ontario - EZE Buenos Aires Ministro Pistarini

ONTEZE

Ontario

Mon 11/16

6:37 pm-3:00 am

3 stops27h 23m

Buenos Aires Ministro Pistarini

Wed 12/2

8:05 pm-11:58 pm

3 stops32h 53m

$1,125

OntarioBuenos Aires

ONT Ontario - EZE Buenos Aires Ministro Pistarini

ONTEZE

Ontario

Sat 11/14

5:07 pm-5:00 am

3 stops30h 53m

Buenos Aires Ministro Pistarini

Sun 12/6

2:40 pm-10:45 am

2 stops25h 05m

$1,136

OntarioBuenos Aires

ONT Ontario - EZE Buenos Aires Ministro Pistarini

ONTEZE

Ontario

Sat 11/14

5:07 pm-5:00 am

3 stops30h 53m

Buenos Aires Ministro Pistarini

Sun 12/6

2:40 pm-11:51 am

3 stops26h 11m

$1,152

OntarioBuenos Aires

ONT Ontario - EZE Buenos Aires Ministro Pistarini

ONTEZE

Ontario

Sat 11/14

5:07 pm-5:00 am

3 stops30h 53m

Buenos Aires Ministro Pistarini

Sun 12/6

4:50 pm-10:45 am

3 stops22h 55m

$1,155
Quickest round-trip

OntarioBuenos Aires

ONT Ontario - EZE Buenos Aires Ministro Pistarini

ONTEZE

Ontario

Wed 11/25

6:37 pm-3:00 am

3 stops27h 23m

Buenos Aires Ministro Pistarini

Thu 12/3

2:40 am-10:15 pm

2 stops24h 35m

$1,156

Flights are sorted by cheapest round-trip flights first.

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How to get the cheapest flight ticket from Ontario 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

Can stopping save me money on Ontario to Buenos Aires flights?

You could potentially save up to 13% on your flight if you consider stops on a Ontario to Buenos Aires flight.

When to book flights from Ontario to Buenos Aires

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Buenos Aires according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Buenos Aires (ONT to BUE) flight deals and tips

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

Best Price Found

$520

Fastest flight time

18h 55m

Direct flights

None
The best one-way flight to Buenos Aires from Ontario in the past 72 hours is $520. The best round-trip flight deal from Ontario to Buenos Aires found on momondo in the last 72 hours is $1,014.
The fastest flight from Ontario to Buenos Aires takes 18h 55m
There are no direct flights from Ontario to Buenos Aires. There are no popular flight routes from Ontario to Buenos Aires.
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Frequently asked questions about flying from Ontario to Buenos Aires

  • How far is Ontario to Buenos Aires by plane?

    The straight-line distance from Ontario to Buenos Aires is 6094.6 mi. By plane, this route typically takes 18h 55m.

  • When did momondo last update prices for flights from Ontario Airport to Buenos Aires?

    Prices for flights from Ontario Airport to Buenos Aires are refreshed on a daily basis.

  • How old do you have to be to fly from Ontario Airport 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 Ontario Airport to Buenos Aires.

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

    The required travel and health documents for your Buenos Aires trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Buenos Aires. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Buenos Aires?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ontario to Buenos Aires. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Ontario to Buenos Aires with flexible booking policies on momondo?

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

How can momondo help me find flights from Ontario to Buenos Aires?

Once all potential Ontario to Buenos Aires flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are simply researching potential flights to Buenos Aires, momondo offers a useful price alert feature which will track prices for flights to Buenos Aires from Ontario and alert you when they change.

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Find better results for your trip to Argentina

Fly into one of these airports located in Buenos Aires

Buenos Aires Jorge Newbery Airport
Buenos Aires Ministro Pistarini Airport