Cheap Frontier Airlines flights Detroit (DTW) to Ontario (ONT)

Cheap Frontier Airlines flights Detroit (DTW) to Ontario (ONT)

Prices were available within the past 7 days and start at for one-way flights and $218 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, May 19 - Wed, May 28

DTW

Detroit

ONT

Ontario

$218 Roundtrip, found 4 days ago

$218

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Mon, May 19 from Detroit to Ontario, returning Wed, May 28, priced at $218 found 4 days ago

Mon, May 19 - Sun, May 25

DTW

Detroit

ONT

Ontario

$228 Roundtrip, found 4 days ago

$228

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Mon, May 19 from Detroit to Ontario, returning Sun, May 25, priced at $228 found 4 days ago

Thu, May 22 - Wed, May 28

DTW

Detroit

ONT

Ontario

$238 Roundtrip, found 4 days ago

$238

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Thu, May 22 from Detroit to Ontario, returning Wed, May 28, priced at $238 found 4 days ago

Thu, May 22 - Sun, May 25

DTW

Detroit

ONT

Ontario

$248 Roundtrip, found 4 days ago

$248

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Thu, May 22 from Detroit to Ontario, returning Sun, May 25, priced at $248 found 4 days ago

Fri, May 23 - Wed, May 28

DTW

Detroit

ONT

Ontario

$260 Roundtrip, found 4 days ago

$260

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Fri, May 23 from Detroit to Ontario, returning Wed, May 28, priced at $260 found 4 days ago

Mon, May 19 - Mon, May 26

DTW

Detroit

ONT

Ontario

$270 Roundtrip, found 4 days ago

$270

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Mon, May 19 from Detroit to Ontario, returning Mon, May 26, priced at $270 found 4 days ago

Sat, May 24 - Mon, May 26

DTW

Detroit

ONT

Ontario

$280 Roundtrip, found 4 days ago

$280

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Sat, May 24 from Detroit to Ontario, returning Mon, May 26, priced at $280 found 4 days ago

Thu, May 22 - Mon, May 26

DTW

Detroit

ONT

Ontario

$290 Roundtrip, found 4 days ago

$290

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Thu, May 22 from Detroit to Ontario, returning Mon, May 26, priced at $290 found 4 days ago

Sun, May 4 - Thu, May 22

DTW

Detroit

ONT

Ontario

$300 Roundtrip, found 4 days ago

$300

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Sun, May 4 from Detroit to Ontario, returning Thu, May 22, priced at $300 found 4 days ago

Fri, May 23 - Mon, May 26

DTW

Detroit

ONT

Ontario

$310 Roundtrip, found 4 days ago

$310

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Fri, May 23 from Detroit to Ontario, returning Mon, May 26, priced at $310 found 4 days ago