Cheap flights from Kansas City to Ontario

View AU$226 flight on Sat, 23 Aug. 2025Opens in a new window

Popular airlines from Kansas City to Ontario

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 35% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Kansas City (MKC) to Ontario (QLA)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, 13 Sep. - Sat, 27 Sep.
MCI
Kansas City
ONT
Ontario
AU$450 Return, found 2 days ago
AU$450
Return
found 2 days ago
Select Delta flight, departing Sat, 13 Sep. from Kansas City to Ontario, returning Sat, 27 Sep., priced at AU$450 found 2 days ago
Delta
Sat, 16 Aug. - Sat, 30 Aug.
MCI
Kansas City
ONT
Ontario
AU$467 Return, found 2 days ago
AU$467
Return
found 2 days ago
Select Delta flight, departing Sat, 16 Aug. from Kansas City to Ontario, returning Sat, 30 Aug., priced at AU$467 found 2 days ago
Hawaiian Airlines
Tue, 9 Sep. - Tue, 23 Sep.
MCI
Kansas City
ONT
Ontario
AU$483 Return, found 2 days ago
AU$483
Return
found 2 days ago
Select Hawaiian Airlines flight, departing Tue, 9 Sep. from Kansas City to Ontario, returning Tue, 23 Sep., priced at AU$483 found 2 days ago
Alaska Airlines
Tue, 16 Sep. - Sun, 28 Sep.
MCI
Kansas City
ONT
Ontario
AU$550 Return, found 2 days ago
AU$550
Return
found 2 days ago
Select Alaska Airlines flight, departing Tue, 16 Sep. from Kansas City to Ontario, returning Sun, 28 Sep., priced at AU$550 found 2 days ago
American Airlines
Tue, 2 Sep. - Sat, 13 Sep.
MCI
Kansas City
ONT
Ontario
AU$571 Return, found 2 days ago
AU$571
Return
found 2 days ago
Select American Airlines flight, departing Tue, 2 Sep. from Kansas City to Ontario, returning Sat, 13 Sep., priced at AU$571 found 2 days ago
United
Sat, 16 Aug. - Mon, 1 Sep.
MCI
Kansas City
ONT
Ontario
AU$671 Return, found 2 days ago
AU$671
Return
found 2 days ago
Select United flight, departing Sat, 16 Aug. from Kansas City to Ontario, returning Mon, 1 Sep., priced at AU$671 found 2 days ago

Find the cheapest month to fly from Kansas City (MCI) to Ontario (ONT)

October is typically the cheapest month to fly

From AU$181 - AU$647 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.