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Cheap flight deals from Buenos Aires to Ontario Starting at AU$1,302

We've found these cheap flights for you. You can book one-way or round-trip flight tickets.

  • One way
  • Round-trip
      • EZE09:00 pm
        28h 58m
        1 stop
        ONT09:58 pm
        Mon, Apr 28|Buenos Aires - Ontario|United Airlines
        AU$1,302AU$1,787
        27% OFF
        27% OFF
        AU$1,787AU$1,302

        Choose United Airlines flights from Buenos Aires to Ontario. The one-way connecting flight with United Airlines departs from Ministro Pistarini International Airport on Mon, Apr 28, arriving at Ontario International Airport. One-way Prices start from AU$1,302 including taxes and charges.

      • EZE08:55 pm
        18h 41m
        1 stop
        ONT11:36 am
        Wed, Mar 12|Buenos Aires - Ontario|Delta Air Lines
        AU$1,304AU$1,787
        27% OFF
        27% OFF
        AU$1,787AU$1,304

        Choose Delta Air Lines flights from Buenos Aires to Ontario. The one-way connecting flight with Delta Air Lines departs from Ministro Pistarini International Airport on Wed, Mar 12, arriving at Ontario International Airport. One-way Prices start from AU$1,304 including taxes and charges.

      • EZE09:00 pm
        30h 52m
        1 stop
        ONT10:52 pm
        Mon, Feb 24|Buenos Aires - Ontario|Delta Air Lines
        AU$1,318AU$1,787
        26% OFF
        26% OFF
        AU$1,787AU$1,318

        Choose Delta Air Lines flights from Buenos Aires to Ontario. The one-way connecting flight with Delta Air Lines departs from Ministro Pistarini International Airport on Mon, Feb 24, arriving at Ontario International Airport. One-way Prices start from AU$1,318 including taxes and charges.

      • EZE09:05 pm
        28h 54m
        1 stop
        ONT09:59 pm
        Mon, Mar 24|Buenos Aires - Ontario|United Airlines
        AU$1,320
        AU$1,320

        Choose United Airlines flights from Buenos Aires to Ontario. The one-way connecting flight with United Airlines departs from Ministro Pistarini International Airport on Mon, Mar 24, arriving at Ontario International Airport. One-way Prices start from AU$1,320 including taxes and charges.

      • EZE11:55 pm
        26h 4m
        1 stop
        ONT09:59 pm
        Sat, Mar 15|Buenos Aires - Ontario|United Airlines
        AU$1,327
        AU$1,327

        Choose United Airlines flights from Buenos Aires to Ontario. The one-way connecting flight with United Airlines departs from Ministro Pistarini International Airport on Sat, Mar 15, arriving at Ontario International Airport. One-way Prices start from AU$1,327 including taxes and charges.

      • EZE09:05 pm
        28h 54m
        1 stop
        ONT09:59 pm
        Sun, Mar 23|Buenos Aires - Ontario|United Airlines
        AU$1,330
        AU$1,330

        Choose United Airlines flights from Buenos Aires to Ontario. The one-way connecting flight with United Airlines departs from Ministro Pistarini International Airport on Sun, Mar 23, arriving at Ontario International Airport. One-way Prices start from AU$1,330 including taxes and charges.

      • EZE10:05 pm
        28h 54m
        1 stop
        ONT09:59 pm
        Sat, Mar 1|Buenos Aires - Ontario|United Airlines
        AU$1,335
        AU$1,335

        Choose United Airlines flights from Buenos Aires to Ontario. The one-way connecting flight with United Airlines departs from Ministro Pistarini International Airport on Sat, Mar 1, arriving at Ontario International Airport. One-way Prices start from AU$1,335 including taxes and charges.

      • EZE09:00 pm
        28h 58m
        1 stop
        ONT09:58 pm
        Tue, Apr 29|Buenos Aires - Ontario|United Airlines
        AU$1,341
        AU$1,341

        Choose United Airlines flights from Buenos Aires to Ontario. The one-way connecting flight with United Airlines departs from Ministro Pistarini International Airport on Tue, Apr 29, arriving at Ontario International Airport. One-way Prices start from AU$1,341 including taxes and charges.

      • EZE09:05 pm
        28h 54m
        1 stop
        ONT09:59 pm
        Fri, Mar 14|Buenos Aires - Ontario|United Airlines
        AU$1,344
        AU$1,344

        Choose United Airlines flights from Buenos Aires to Ontario. The one-way connecting flight with United Airlines departs from Ministro Pistarini International Airport on Fri, Mar 14, arriving at Ontario International Airport. One-way Prices start from AU$1,344 including taxes and charges.

      • EZE08:55 pm
        29h 48m
        1 stop
        ONT10:43 pm
        Mon, Mar 17|Buenos Aires - Ontario|Delta Air Lines
        AU$1,355
        AU$1,355

        Choose Delta Air Lines flights from Buenos Aires to Ontario. The one-way connecting flight with Delta Air Lines departs from Ministro Pistarini International Airport on Mon, Mar 17, arriving at Ontario International Airport. One-way Prices start from AU$1,355 including taxes and charges.

      • BUE01:00 pm
        3h 5m
        Nonstop
        ONT02:00 pm
        Wed, Feb 26|Buenos Aires - Ontario|United Airlines
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Buenos Aires to Los Angeles Flight Time

Flight info.
Departure
Arrival
Weekly Schedule

  1. CM501

    Copa Airlines

    03:47 am

    EZE

    7.4h

    09:13 am

    PTY

    SMTWTFS
    Search

  2. CM456

    Copa Airlines

    06:28 pm

    PTY

    7.0h

    10:30 pm

    LAS

    -MTW-FS

  3. F94757

    Frontier Airlines

    06:00 am

    LAS

    1.1h

    07:09 am

    ONT

    SMTWT--

  4. AV646

    avianca

    05:55 am

    EZE

    9.8h

    12:45 pm

    SJO

    SM-W-F-
    Search

  5. Q64058

    Volaris Costa Rica

    03:32 pm

    SJO

    3.5h

    07:00 pm

    GDL

    -M---F-

  6. Y41860

    Volaris

    08:58 pm

    GDL

    3.3h

    11:13 pm

    ONT

    SMTWTFS

  7. UA818

    United Airlines

    09:00 pm

    EZE

    10.3h

    05:15 am

    IAH

    SMTWTFS
    Search

  8. UA758

    United Airlines

    07:30 am

    IAH

    3.6h

    09:06 am

    LAS

    SMTWTFS

  9. F91357

    Frontier Airlines

    07:31 pm

    LAS

    1.1h

    08:35 pm

    ONT

    SMTWTFS

  10. UA818

    United Airlines

    09:00 pm

    EZE

    10.3h

    05:15 am

    IAH

    SMTWTFS
    Search

  11. UA758

    United Airlines

    07:30 am

    IAH

    3.6h

    09:06 am

    LAS

    SMTWTFS

  12. F92231

    Frontier Airlines

    08:21 pm

    LAS

    1.1h

    09:27 pm

    ONT

    SMT-TF-

  13. CM364

    Copa Airlines

    10:05 am

    EZE

    7.5h

    03:34 pm

    PTY

    SMTWTFS
    Search

  14. CM456

    Copa Airlines

    06:28 pm

    PTY

    7.0h

    10:30 pm

    LAS

    -MTW-FS

  15. F91357

    Frontier Airlines

    07:31 pm

    LAS

    1.1h

    08:35 pm

    ONT

    SMTWTFS

  16. CM364

    Copa Airlines

    10:05 am

    EZE

    7.5h

    03:34 pm

    PTY

    SMTWTFS
    Search

  17. CM456

    Copa Airlines

    06:28 pm

    PTY

    7.0h

    10:30 pm

    LAS

    -MTW-FS

  18. F91283

    Frontier Airlines

    06:20 am

    LAS

    1.1h

    07:26 am

    ONT

    ---WT-S

  19. CM364

    Copa Airlines

    10:05 am

    EZE

    7.5h

    03:34 pm

    PTY

    SMTWTFS
    Search

  20. CM456

    Copa Airlines

    06:28 pm

    PTY

    7.0h

    10:30 pm

    LAS

    -MTW-FS

  21. F94757

    Frontier Airlines

    06:00 am

    LAS

    1.1h

    07:09 am

    ONT

    SMTWT--

  22. UA832

    United Airlines

    11:55 pm

    EZE

    10.3h

    07:15 am

    IAH

    SMTWTFS
    Search

  23. UA2339

    United Airlines

    06:40 pm

    IAH

    3.5h

    08:10 pm

    LAS

    SMTWTFS

  24. F94757

    Frontier Airlines

    06:00 am

    LAS

    1.1h

    07:09 am

    ONT

    SMTWT--

  25. UA832

    United Airlines

    11:55 pm

    EZE

    10.3h

    07:15 am

    IAH

    SMTWTFS
    Search

  26. UA1799

    United Airlines

    09:40 am

    IAH

    3.6h

    11:16 am

    LAS

    SMTWTFS

  27. F91283

    Frontier Airlines

    06:20 am

    LAS

    1.1h

    07:26 am

    ONT

    ---WT-S

  28. UA832

    United Airlines

    11:55 pm

    EZE

    10.3h

    07:15 am

    IAH

    SMTWTFS
    Search

  29. UA1799

    United Airlines

    09:40 am

    IAH

    3.6h

    11:16 am

    LAS

    SMTWTFS

  30. F92231

    Frontier Airlines

    08:21 pm

    LAS

    1.1h

    09:27 pm

    ONT

    SMT-TF-
Find more flights and airlines

When is the cheapest time to fly from Buenos Aires to Ontario?

We monitor flight fares to help you find the best deals effortlessly

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • When are flight tickets from Buenos Aires (BUE) to Ontario (ONT) the cheapest?

    Airlines adjust prices for flights from Buenos Aires to Ontario based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much do flights from Buenos Aires (BUE) to Ontario (ONT) cost?

    According to Trip.com's data, the lowest price is around AU$1,538.

How to find a cheap flight from Buenos Aires to Ontario

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Buenos Aires to Ontario. Book your flights at the right time and save more.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com

Flight Info | Buenos Aires to Ontario

Cheapest nonstop flight priceAU$1,301
Off-season for travelDecember
Peak season for travelNovember
Flight distance7,162.83 km
Popular airlineSky Airline

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