background

Flight Deals from Ontario International Airport to Buenos Aires from $637

Bundle + Save

Bundle + Save

Top flight deals from leading airlines:

AV LogoCM LogoQR LogoSQ LogoNH LogoEK LogoJL Logo

... and +100s more

Benefit Icon
Incredible Deals

Save up to 50% on select flights with Priceline

Benefit Icon
Bundle & Save

Save an average of $240 per person when bundling your flight and hotel together with Priceline

Benefit Icon
Best Price Guarantee

If a VIP member finds a better price elsewhere, we'll refund up to 200% of the difference

Benefit Icon
Help 24/7

We’re always here for you - reach us 24 hours a day, 7 days a week

Stops

Up to 2 stops
$1176

Airlines

American Airlines
$1176
AVIANCA
$1720
COPA Airlines
$1511

Cabin Class

Economy
$1176

Departure Airports

Ontario International Airport
$1176

Arrival Airports

Buenos Aires Ministro Pistarini Airport
$1176

Layover Airports

Dallas Fort Worth International Airport
$1176
El Dorado International Airport
$1720
George Bush Intercontinental Houston Airport
$1720
Miami International Airport
$1176
Monseñor Óscar Arnulfo Romero International Airport
$1720
San Francisco International Airport
$1511
Tocumen International Airport
$1511

Best Price. GUARANTEED.

Exclusively for Priceline Members
Tired of searching? Book now!
We'll refund the difference if you find a lower price.

Phone Banner

Priceline Phone Deals

Book with an agent for great rates!

Bundle and Save
BUNDLE & SAVE

Book a flight & hotel together for extra savings.

On average save $240 per traveler
American Airlines Logo
American Airlines

11/04/25

12:53pm
ONT
21h 22m
DFW
MIA

11/05/25

10:15am
EZE
American Airlines Logo
American Airlines

11/15/25

10:30pm
EZE
13h 52m
DFW

11/16/25

12:22pm
ONT
$1176
Free cancellation within 83 hours of booking
COPA Airlines Logo
COPA Airlines

10/28/25

6:42pm
ONT
29h 51m
SFO
PTY

10/30/25

12:33am
EZE
COPA Airlines Logo
COPA Airlines

11/14/25

2:31am
EZE
13h 35m
PTY

11/14/25

4:06pm
ONT
$1511
Free cancellation within 83 hours of booking
AVIANCA Logo
AVIANCA

10/22/25

6:02am
ONT
25h 58m
IAH

10/23/25

8:00am
EZE
AVIANCA Logo
AVIANCA

11/01/25

7:10am
EZE
15h 25m
BOG
SAL

11/01/25

10:35pm
ONT
$1720
Free cancellation within 83 hours of booking
AVIANCA Logo
AVIANCA

11/01/25

6:02am
ONT
24h 18m
IAH

11/02/25

6:20am
EZE
AVIANCA Logo
AVIANCA

11/15/25

1:45am
EZE
19h 50m
BOG
SAL

11/15/25

9:35pm
ONT
$1779
Free cancellation within 83 hours of booking
COPA Airlines Logo
COPA Airlines

10/26/25

6:42pm
ONT
27h 17m
SFO
PTY

10/27/25

9:59pm
EZE
COPA Airlines Logo
COPA Airlines

11/14/25

2:31am
EZE
13h 35m
PTY

11/14/25

4:06pm
ONT
$1818
Free cancellation within 83 hours of booking

Top Deals on flights from Ontario International Airport to Buenos Aires

Los Angeles, US (LAX) - Buenos Aires, AR (BUE)

United Airlines Logo
United Airlines

Jun 23

6:00am
ONT
26h
IAH

Jun 24

8:00am
EZE

as low as

$637

Los Angeles, US (LAX) - Buenos Aires, AR (BUE)

United Airlines Logo
United Airlines

Jun 6

6:00am
ONT
26h
IAH

Jun 7

8:00am
EZE

as low as

$637

Los Angeles, US (LAX) - Buenos Aires, AR (BUE)

Delta Air Lines Logo
Delta Air Lines

May 4

10:15pm
ONT
35h 30m
ATL

May 6

9:45am
EZE

as low as

$660

Los Angeles, US (LAX) - Buenos Aires, AR (BUE)

Delta Air Lines Logo
Delta Air Lines

May 22

12:18pm
ONT
21h 27m
ATL

May 23

9:45am
EZE

as low as

$702

Los Angeles, US (LAX) - Buenos Aires, AR (BUE)

AVIANCA Logo
AVIANCA

Apr 17

11:25pm
ONT
26h
SAL
MDE

Apr 19

1:25am
EZE

as low as

$726

Los Angeles, US (LAX) - Buenos Aires, AR (BUE)

AVIANCA Logo
AVIANCA

May 3

11:25pm
ONT
26h
SAL
MDE

May 5

1:25am
EZE

as low as

$726

Los Angeles, US (LAX) - Buenos Aires, AR (BUE)

AVIANCA Logo
AVIANCA

Apr 22

11:25pm
ONT
24h 45m
SAL
BOG

Apr 24

12:10am
EZE

as low as

$781

Los Angeles, US (LAX) - Buenos Aires, AR (BUE)

American Airlines Logo
American Airlines

May 27

10:53am
ONT
22h 2m
DFW
MIA

May 28

8:55am
EZE

as low as

$812

Los Angeles, US (LAX) - Buenos Aires, AR (BUE)

American Airlines Logo
American Airlines

Jun 10

6:10am
ONT
26h 50m
DFW
MIA

Jun 11

9:00am
EZE

as low as

$812

Los Angeles, US (LAX) - Buenos Aires, AR (BUE)

American Airlines Logo
American Airlines

Jun 16

7:05pm
ONT
39h 10m
PHX
JFK

Jun 18

10:15am
EZE

as low as

$846

Los Angeles, US (LAX) - Buenos Aires, AR (BUE)

AVIANCA Logo
AVIANCA

Aug 5

11:25pm
ONT
24h 45m
SAL
BOG

Aug 7

12:10am
EZE

as low as

$980

Los Angeles, US (LAX) - Buenos Aires, AR (BUE)

COPA Airlines Logo
COPA Airlines

Jun 2

6:41pm
ONT
27h 27m
SFO
PTY

Jun 3

10:08pm
EZE

as low as

$1088
User

Priceline Phone Deals

Book with an agent for great rates!
Call now!

1 (888) 775-6158
Priceline is part of Booking Holdings, the world leader in online travel & related services.
Priceline LogoBooking LogoKayak LogoOpen Table LogoRental Cars LogoAgoba Logo
Sroll to top