$135 Cheap Frontier Airlines flights Grand Rapids (GRR) to Ontario Intl. Airport (ONT)

$135 Cheap Frontier Airlines flights Grand Rapids (GRR) to Ontario Intl. Airport (ONT)

Prices were available within the past 7 days and start at $135 for one-way flights and $270 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Aug 22 - Sat, Aug 29

GRR

Grand Rapids

ONT

Ontario

$270 Roundtrip, found 6 hours ago

$270

Roundtrip

found 6 hours ago

Select Frontier Airlines flight, departing Sat, Aug 22 from Grand Rapids to Ontario, returning Sat, Aug 29, priced at $270 found 6 hours ago

Mon, Aug 17 - Sat, Aug 29

GRR

Grand Rapids

ONT

Ontario

$272 Roundtrip, found 6 hours ago

$272

Roundtrip

found 6 hours ago

Select Frontier Airlines flight, departing Mon, Aug 17 from Grand Rapids to Ontario, returning Sat, Aug 29, priced at $272 found 6 hours ago

Mon, Aug 17 - Mon, Aug 24

GRR

Grand Rapids

ONT

Ontario

$274 Roundtrip, found 6 hours ago

$274

Roundtrip

found 6 hours ago

Select Frontier Airlines flight, departing Mon, Aug 17 from Grand Rapids to Ontario, returning Mon, Aug 24, priced at $274 found 6 hours ago

Sat, Aug 15 - Wed, Sep 2

GRR

Grand Rapids

ONT

Ontario

$285 Roundtrip, found 8 hours ago

$285

Roundtrip

found 8 hours ago

Select Frontier Airlines flight, departing Sat, Aug 15 from Grand Rapids to Ontario, returning Wed, Sep 2, priced at $285 found 8 hours ago

Mon, Aug 17 - Wed, Aug 19

GRR

Grand Rapids

ONT

Ontario

$287 Roundtrip, found 6 hours ago

$287

Roundtrip

found 6 hours ago

Select Frontier Airlines flight, departing Mon, Aug 17 from Grand Rapids to Ontario, returning Wed, Aug 19, priced at $287 found 6 hours ago

Fri, Aug 21 - Sat, Aug 29

GRR

Grand Rapids

ONT

Ontario

$294 Roundtrip, found 6 hours ago

$294

Roundtrip

found 6 hours ago

Select Frontier Airlines flight, departing Fri, Aug 21 from Grand Rapids to Ontario, returning Sat, Aug 29, priced at $294 found 6 hours ago

Mon, Aug 17 - Fri, Aug 28

GRR

Grand Rapids

ONT

Ontario

$296 Roundtrip, found 6 hours ago

$296

Roundtrip

found 6 hours ago

Select Frontier Airlines flight, departing Mon, Aug 17 from Grand Rapids to Ontario, returning Fri, Aug 28, priced at $296 found 6 hours ago

Thu, Aug 13 - Wed, Sep 2

GRR

Grand Rapids

ONT

Ontario

$309 Roundtrip, found 8 hours ago

$309

Roundtrip

found 8 hours ago

Select Frontier Airlines flight, departing Thu, Aug 13 from Grand Rapids to Ontario, returning Wed, Sep 2, priced at $309 found 8 hours ago

Fri, Aug 21 - Fri, Aug 28

GRR

Grand Rapids

ONT

Ontario

$318 Roundtrip, found 6 hours ago

$318

Roundtrip

found 6 hours ago

Select Frontier Airlines flight, departing Fri, Aug 21 from Grand Rapids to Ontario, returning Fri, Aug 28, priced at $318 found 6 hours ago