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Cheap flight deals from Ontario to Great Falls Starting at PHP 6,143

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
        4h 14m
        1 stop
        GTF11:14 am
        Sun, Feb 23|Ontario - Great Falls|Delta Air Lines
        PHP 6,143PHP 15,441
        60% OFF
        60% OFF
        PHP 15,441PHP 6,143

        Choose Delta Air Lines flights from Ontario to Great Falls. The one-way connecting flight with Delta Air Lines departs from Ontario International Airport on Sun, Feb 23, arriving at Great Falls International Airport. One-way Prices start from PHP 6,143 including taxes and charges.

      • ONT06:00 am
        4h 14m
        1 stop
        GTF11:14 am
        Mon, Feb 24|Ontario - Great Falls|Delta Air Lines
        PHP 6,143PHP 15,441
        60% OFF
        60% OFF
        PHP 15,441PHP 6,143

        Choose Delta Air Lines flights from Ontario to Great Falls. The one-way connecting flight with Delta Air Lines departs from Ontario International Airport on Mon, Feb 24, arriving at Great Falls International Airport. One-way Prices start from PHP 6,143 including taxes and charges.

      • ONT06:00 am
        4h 14m
        1 stop
        GTF11:14 am
        Sat, Mar 8|Ontario - Great Falls|Delta Air Lines
        PHP 7,738PHP 15,441
        50% OFF
        50% OFF
        PHP 15,441PHP 7,738

        Choose Delta Air Lines flights from Ontario to Great Falls. The one-way connecting flight with Delta Air Lines departs from Ontario International Airport on Sat, Mar 8, arriving at Great Falls International Airport. One-way Prices start from PHP 7,738 including taxes and charges.

      • ONT06:00 am
        7h 5m
        1 stop
        GTF02:05 pm
        Thu, Mar 6|Ontario - Great Falls|Alaska Airlines
        PHP 8,408
        PHP 8,408

        Choose Alaska Airlines flights from Ontario to Great Falls. The one-way connecting flight with Alaska Airlines departs from Ontario International Airport on Thu, Mar 6, arriving at Great Falls International Airport. One-way Prices start from PHP 8,408 including taxes and charges.

      • ONT06:00 am
        7h 5m
        1 stop
        GTF02:05 pm
        Fri, Feb 28|Ontario - Great Falls|Alaska Airlines
        PHP 8,951
        PHP 8,951

        Choose Alaska Airlines flights from Ontario to Great Falls. The one-way connecting flight with Alaska Airlines departs from Ontario International Airport on Fri, Feb 28, arriving at Great Falls International Airport. One-way Prices start from PHP 8,951 including taxes and charges.

      • ONT05:05 am
        7h 25m
        1 stop
        GTF01:30 pm
        Sat, Mar 8|Ontario - Great Falls|United Airlines
        PHP 9,685
        PHP 9,685

        Choose United Airlines flights from Ontario to Great Falls. The one-way connecting flight with United Airlines departs from Ontario International Airport on Sat, Mar 8, arriving at Great Falls International Airport. One-way Prices start from PHP 9,685 including taxes and charges.

      • ONT11:25 am
        25h 40m
        1 stop
        GTF02:05 pm
        Mon, Mar 3|Ontario - Great Falls|Frontier Airlines
        PHP 9,733
        PHP 9,733

        Choose Frontier Airlines flights from Ontario to Great Falls. The one-way connecting flight with Frontier Airlines departs from Ontario International Airport on Mon, Mar 3, arriving at Great Falls International Airport. One-way Prices start from PHP 9,733 including taxes and charges.

      • ONT12:59 am
        19h 14m
        1 stop
        GTF09:13 pm
        Mon, Apr 28|Ontario - Great Falls|Frontier Airlines
        PHP 9,932
        PHP 9,932

        Choose Frontier Airlines flights from Ontario to Great Falls. The one-way connecting flight with Frontier Airlines departs from Ontario International Airport on Mon, Apr 28, arriving at Great Falls International Airport. One-way Prices start from PHP 9,932 including taxes and charges.

      • ONT12:59 am
        11h 31m
        1 stop
        GTF01:30 pm
        Sat, Mar 8|Ontario - Great Falls|Frontier Airlines
        PHP 10,339
        PHP 10,339

        Choose Frontier Airlines flights from Ontario to Great Falls. The one-way connecting flight with Frontier Airlines departs from Ontario International Airport on Sat, Mar 8, arriving at Great Falls International Airport. One-way Prices start from PHP 10,339 including taxes and charges.

      • ONT06:00 am
        4h 14m
        1 stop
        GTF11:14 am
        Mon, Apr 28|Ontario - Great Falls|Delta Air Lines
        PHP 10,483
        PHP 10,483

        Choose Delta Air Lines flights from Ontario to Great Falls. The one-way connecting flight with Delta Air Lines departs from Ontario International Airport on Mon, Apr 28, arriving at Great Falls International Airport. One-way Prices start from PHP 10,483 including taxes and charges.

      • ONT01:00 pm
        3h 5m
        Nonstop
        GTF02:00 pm
        Wed, Feb 26|Ontario - Great Falls|Delta Air Lines
        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 Great Falls Flight Time

Flight info.
Departure
Arrival
Weekly Schedule

  1. UA1942

    United Airlines

    01:44 pm

    ONT

    2.3h

    05:03 pm

    DEN

    SMTWTFS
    Search

  2. UA5240

    United Airlines

    07:15 pm

    DEN

    2.1h

    09:23 pm

    GTF

    SMTWTFS

  3. UA1575

    United Airlines

    05:05 am

    ONT

    2.3h

    08:24 am

    DEN

    SMTWTFS
    Search

  4. UA5240

    United Airlines

    07:15 pm

    DEN

    2.1h

    09:23 pm

    GTF

    SMTWTFS

  5. UA1575

    United Airlines

    05:05 am

    ONT

    2.3h

    08:24 am

    DEN

    SMTWTFS
    Search

  6. UA5331

    United Airlines

    11:25 am

    DEN

    2.1h

    01:32 pm

    GTF

    SMTWTFS

  7. DL3933

    Delta Air Lines

    05:10 pm

    ONT

    1.9h

    08:03 pm

    SLC

    SMTWTFS
    Search

  8. DL3845

    Delta Air Lines

    09:15 pm

    SLC

    1.5h

    10:46 pm

    GTF

    SMTWTFS

  9. AS1091

    Alaska Airlines

    06:00 am

    ONT

    2.7h

    08:42 am

    SEA

    SMTWTFS
    Search

  10. AS3460

    Alaska Airlines

    11:25 am

    SEA

    1.7h

    02:05 pm

    GTF

    SMTWTFS

  11. DL1340

    Delta Air Lines

    06:00 am

    ONT

    1.8h

    08:50 am

    SLC

    SMTWTFS
    Search

  12. DL3859

    Delta Air Lines

    10:05 am

    SLC

    1.6h

    11:43 am

    GTF

    SMTWTFS

  13. DL4042

    Delta Air Lines

    07:00 am

    ONT

    3.0h

    10:03 am

    SEA

    SMTWTFS
    Search

  14. AS3460

    Alaska Airlines

    11:25 am

    SEA

    1.7h

    02:05 pm

    GTF

    SMTWTFS

  15. AS1399

    Alaska Airlines

    07:20 pm

    ONT

    2.7h

    10:00 pm

    SEA

    SMTWTFS
    Search

  16. AS3460

    Alaska Airlines

    11:25 am

    SEA

    1.7h

    02:05 pm

    GTF

    SMTWTFS

  17. F91500

    Frontier Airlines

    12:59 am

    ONT

    2.3h

    04:17 am

    DEN

    SMTWTFS
    Search

  18. UA5240

    United Airlines

    07:15 pm

    DEN

    2.1h

    09:23 pm

    GTF

    SMTWTFS

  19. F91500

    Frontier Airlines

    12:59 am

    ONT

    2.3h

    04:17 am

    DEN

    SMTWTFS
    Search

  20. UA5331

    United Airlines

    11:25 am

    DEN

    2.1h

    01:32 pm

    GTF

    SMTWTFS
Find more flights and airlines

When is the cheapest time to fly from Ontario to Great Falls?

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 Great Falls (GTF) the cheapest?

    Airlines adjust prices for flights from Ontario to Great Falls 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 Great Falls (GTF) cost?

    According to Trip.com's data, the lowest price is around PHP 21,595.

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

    • The distance from Great Falls International Airport to downtown is about 5 km. It takes about 20 minutes by taxi.

How to find a cheap flight from Ontario to Great Falls

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 Great Falls. 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 Great Falls

Cheapest nonstop flight pricePHP 6,142
Off-season for travelDecember
Peak season for travelNovember
Flight distance11,591.99 km
Popular airlineAlaska Airlines

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