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Cheap flight deals from Ontario to Rosario Starting at PHP 37,649

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

  • One way
  • Round-trip
      • ONT06:00 am
        28h 25m
        2 stops
        ROS02:25 pm
        Sun, Mar 16|Ontario - Rosario|United Airlines
        PHP 37,649PHP 67,276
        44% OFF
        44% OFF
        PHP 67,276PHP 37,649

        Choose United Airlines flights from Ontario to Rosario. The one-way connecting flight with United Airlines departs from Ontario International Airport on Sun, Mar 16, arriving at Rosario International Airport. One-way Prices start from PHP 37,649 including taxes and charges.

      • ONT06:05 am
        39h 40m
        2 stops
        ROS01:45 am
        Mon, Apr 28|Ontario - Rosario|United Airlines
        PHP 37,769PHP 67,276
        44% OFF
        44% OFF
        PHP 67,276PHP 37,769

        Choose United Airlines flights from Ontario to Rosario. The one-way connecting flight with United Airlines departs from Ontario International Airport on Mon, Apr 28, arriving at Rosario International Airport. One-way Prices start from PHP 37,769 including taxes and charges.

      • ONT06:00 am
        26h 15m
        2 stops
        ROS01:15 pm
        Fri, Mar 7|Ontario - Rosario|United Airlines
        PHP 37,849PHP 67,276
        44% OFF
        44% OFF
        PHP 67,276PHP 37,849

        Choose United Airlines flights from Ontario to Rosario. The one-way connecting flight with United Airlines departs from Ontario International Airport on Fri, Mar 7, arriving at Rosario International Airport. One-way Prices start from PHP 37,849 including taxes and charges.

      • ONT06:00 am
        26h 15m
        2 stops
        ROS01:15 pm
        Sat, Feb 22|Ontario - Rosario|United Airlines
        PHP 38,167
        PHP 38,167

        Choose United Airlines flights from Ontario to Rosario. The one-way connecting flight with United Airlines departs from Ontario International Airport on Sat, Feb 22, arriving at Rosario International Airport. One-way Prices start from PHP 38,167 including taxes and charges.

      • ONT06:00 am
        33h 20m
        2 stops
        ROS07:20 pm
        Tue, Mar 25|Ontario - Rosario|United Airlines
        PHP 42,582
        PHP 42,582

        Choose United Airlines flights from Ontario to Rosario. The one-way connecting flight with United Airlines departs from Ontario International Airport on Tue, Mar 25, arriving at Rosario International Airport. One-way Prices start from PHP 42,582 including taxes and charges.

      • ONT06:00 am
        44h 50m
        2 stops
        ROS07:50 am
        Wed, Feb 26|Ontario - Rosario|United Airlines
        PHP 44,390
        PHP 44,390

        Choose United Airlines flights from Ontario to Rosario. The one-way connecting flight with United Airlines departs from Ontario International Airport on Wed, Feb 26, arriving at Rosario International Airport. One-way Prices start from PHP 44,390 including taxes and charges.

      • ONT06:00 am
        46h 30m
        2 stops
        ROS08:30 am
        Mon, Mar 24|Ontario - Rosario|United Airlines
        PHP 45,195
        PHP 45,195

        Choose United Airlines flights from Ontario to Rosario. The one-way connecting flight with United Airlines departs from Ontario International Airport on Mon, Mar 24, arriving at Rosario International Airport. One-way Prices start from PHP 45,195 including taxes and charges.

      • ONT06:05 am
        45h 45m
        2 stops
        ROS07:50 am
        Tue, Apr 15|Ontario - Rosario|United Airlines
        PHP 45,833
        PHP 45,833

        Choose United Airlines flights from Ontario to Rosario. The one-way connecting flight with United Airlines departs from Ontario International Airport on Tue, Apr 15, arriving at Rosario International Airport. One-way Prices start from PHP 45,833 including taxes and charges.

      • ONT06:05 am
        33h 15m
        2 stops
        ROS07:20 pm
        Wed, Apr 2|Ontario - Rosario|United Airlines
        PHP 48,056
        PHP 48,056

        Choose United Airlines flights from Ontario to Rosario. The one-way connecting flight with United Airlines departs from Ontario International Airport on Wed, Apr 2, arriving at Rosario International Airport. One-way Prices start from PHP 48,056 including taxes and charges.

      • ONT06:00 am
        27h 25m
        2 stops
        ROS02:25 pm
        Sun, Feb 16|Ontario - Rosario|United Airlines
        PHP 51,028
        PHP 51,028

        Choose United Airlines flights from Ontario to Rosario. The one-way connecting flight with United Airlines departs from Ontario International Airport on Sun, Feb 16, arriving at Rosario International Airport. One-way Prices start from PHP 51,028 including taxes and charges.

      • ONT01:00 pm
        3h 5m
        Nonstop
        ROS02:00 pm
        Sun, Feb 23|Ontario - Rosario|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.

Los Angeles to Rosario Flight Time

Flight info.
Departure
Arrival
Weekly Schedule

  1. DL665

    Delta Air Lines

    01:00 pm

    ONT

    4.2h

    08:10 pm

    ATL

    SMTWTFS
    Search

  2. LA2483

    LATAM Airlines

    11:20 pm

    ATL

    6.7h

    05:00 am

    LIM

    SMTWTFS

  3. LA2432

    LATAM Airlines

    12:05 am

    LIM

    4.0h

    06:05 am

    ROS

    --T-T-S

  4. AA2635

    American Airlines

    02:54 pm

    ONT

    2.9h

    07:49 pm

    DFW

    SMTWTFS
    Search

  5. AA997

    American Airlines

    08:40 pm

    DFW

    10.5h

    09:10 am

    EZE

    SMTWTFS

  6. AR1718

    Aerolineas Argentinas

    05:45 pm

    AEP

    1.0h

    06:45 pm

    ROS

    ---W--S

  7. UA722

    United Airlines

    06:00 am

    ONT

    3.0h

    11:02 am

    IAH

    SMTWTFS
    Search

  8. UA831

    United Airlines

    06:30 pm

    IAH

    10.8h

    07:20 am

    EZE

    SMTWTFS

  9. AR1708

    Aerolineas Argentinas

    06:50 am

    AEP

    1.0h

    07:50 am

    ROS

    SMTWTF-

  10. UA722

    United Airlines

    06:00 am

    ONT

    3.0h

    11:02 am

    IAH

    SMTWTFS
    Search

  11. UA129

    United Airlines

    08:20 pm

    IAH

    10.3h

    09:35 am

    GIG

    SMTWTFS

  12. G37722

    Gol Linhas Aereas Inteligentes

    10:30 pm

    GIG

    3.6h

    02:05 am

    ROS

    SMTWTFS

  13. UA722

    United Airlines

    06:00 am

    ONT

    3.0h

    11:02 am

    IAH

    SMTWTFS
    Search

  14. UA819

    United Airlines

    08:15 pm

    IAH

    9.8h

    08:00 am

    EZE

    SMTWTFS

  15. AR1712

    Aerolineas Argentinas

    06:40 am

    AEP

    1.0h

    07:40 am

    ROS

    S-T--FS

  16. UA722

    United Airlines

    06:00 am

    ONT

    3.0h

    11:02 am

    IAH

    SMTWTFS
    Search

  17. UA819

    United Airlines

    08:15 pm

    IAH

    9.8h

    08:00 am

    EZE

    SMTWTFS

  18. AR1718

    Aerolineas Argentinas

    05:45 pm

    AEP

    1.0h

    06:45 pm

    ROS

    ---W--S

  19. UA722

    United Airlines

    06:00 am

    ONT

    3.0h

    11:02 am

    IAH

    SMTWTFS
    Search

  20. UA831

    United Airlines

    06:30 pm

    IAH

    10.8h

    07:20 am

    EZE

    SMTWTFS

  21. AR1716

    Aerolineas Argentinas

    12:05 pm

    AEP

    1.0h

    01:05 pm

    ROS

    S-T-T--

  22. UA722

    United Airlines

    06:00 am

    ONT

    3.0h

    11:02 am

    IAH

    SMTWTFS
    Search

  23. UA819

    United Airlines

    08:15 pm

    IAH

    9.8h

    08:00 am

    EZE

    SMTWTFS

  24. AR1378

    Aerolineas Argentinas

    12:55 pm

    AEP

    1.0h

    01:55 pm

    ROS

    ----T--

  25. UA722

    United Airlines

    06:00 am

    ONT

    3.0h

    11:02 am

    IAH

    SMTWTFS
    Search

  26. UA831

    United Airlines

    06:30 pm

    IAH

    10.8h

    07:20 am

    EZE

    SMTWTFS

  27. AR1712

    Aerolineas Argentinas

    06:40 am

    AEP

    1.0h

    07:40 am

    ROS

    S-T--FS

  28. DL761

    Delta Air Lines

    07:00 am

    ONT

    4.2h

    02:09 pm

    ATL

    SMTWTFS
    Search

  29. DL151

    Delta Air Lines

    02:22 pm

    ATL

    6.5h

    08:55 pm

    LIM

    SMTWTFS

  30. LA2432

    LATAM Airlines

    12:05 am

    LIM

    4.0h

    06:05 am

    ROS

    --T-T-S
Find more flights and airlines

When is the cheapest time to fly from Ontario to Rosario?

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 Ontario (ONT) to Rosario (ROS) the cheapest?

    Airlines adjust prices for flights from Ontario to Rosario 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 Ontario (ONT) to Rosario (ROS) cost?

    According to Trip.com's data, the lowest price is around PHP 73,450.

  • What is the transportation method from the main airport to downtown in Rosario?

    • The distance from Rosario International Airport to downtown is about 12 km. It takes about 30 minutes by taxi.

How to find a cheap flight from Ontario to Rosario

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 Ontario to Rosario. 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 | Ontario to Rosario

Flight distance7,317.49 km
Popular airlineDelta Air Lines

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