$434 Cheap Frontier Airlines flights Kansas City (MCI) to Ontario (ONT)

$434 Cheap Frontier Airlines flights Kansas City (MCI) to Ontario (ONT)

Prices were available within the past 7 days and start at $434 for one-way flights and $316 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Apr 11 - Mon, Apr 13

MCI

Kansas City

ONT

Ontario

$316 Roundtrip, found 2 days ago

$316

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Sat, Apr 11 from Kansas City to Ontario, returning Mon, Apr 13, priced at $316 found 2 days ago

Sat, Apr 11 - Sun, Apr 19

MCI

Kansas City

ONT

Ontario

$345 Roundtrip, found 2 days ago

$345

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Sat, Apr 11 from Kansas City to Ontario, returning Sun, Apr 19, priced at $345 found 2 days ago

Mon, Apr 13 - Sat, Apr 18

MCI

Kansas City

ONT

Ontario

$350 Roundtrip, found 2 days ago

$350

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Mon, Apr 13 from Kansas City to Ontario, returning Sat, Apr 18, priced at $350 found 2 days ago

Mon, Apr 13 - Thu, Apr 16

MCI

Kansas City

ONT

Ontario

$376 Roundtrip, found 2 days ago

$376

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Mon, Apr 13 from Kansas City to Ontario, returning Thu, Apr 16, priced at $376 found 2 days ago

Mon, Apr 13 - Sun, Apr 19

MCI

Kansas City

ONT

Ontario

$405 Roundtrip, found 2 days ago

$405

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Mon, Apr 13 from Kansas City to Ontario, returning Sun, Apr 19, priced at $405 found 2 days ago

Sat, Apr 4 - Sat, Apr 11

MCI

Kansas City

ONT

Ontario

$406 Roundtrip, found 6 days ago

$406

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Sat, Apr 4 from Kansas City to Ontario, returning Sat, Apr 11, priced at $406 found 6 days ago

Fri, Apr 10 - Sat, Apr 18

MCI

Kansas City

ONT

Ontario

$460 Roundtrip, found 2 days ago

$460

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Fri, Apr 10 from Kansas City to Ontario, returning Sat, Apr 18, priced at $460 found 2 days ago

Sat, Apr 4 - Sun, Apr 12

MCI

Kansas City

ONT

Ontario

$481 Roundtrip, found 6 days ago

$481

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Sat, Apr 4 from Kansas City to Ontario, returning Sun, Apr 12, priced at $481 found 6 days ago

Sat, Apr 11 - Sat, Apr 18

MCI

Kansas City

ONT

Ontario

$539 Roundtrip, found 10 hours ago

$539

Roundtrip

found 10 hours ago

Select Frontier Airlines flight, departing Sat, Apr 11 from Kansas City to Ontario, returning Sat, Apr 18, priced at $539 found 10 hours ago

Sat, Apr 4 - Mon, Apr 6

MCI

Kansas City

ONT

Ontario

$550 Roundtrip, found 6 days ago

$550

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Sat, Apr 4 from Kansas City to Ontario, returning Mon, Apr 6, priced at $550 found 6 days ago