Cheap flights from Denver to Lake Arrowhead from CA $122

View CA $122 flight on Thu, Sep. 4, 2025Opens in a new window

Popular airlines from Denver to Lake Arrowhead

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Cheap flights from Denver (DEN) to Lake Arrowhead (ONT)

Prices were available within the past 7 days and start at CA $122 for one-way flights and CA $350 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sun, Oct. 5 - Fri, Oct. 10
DEN
Denver
ONT
Ontario
CA $350 Roundtrip, found 5 days ago
CA $350
Roundtrip
found 5 days ago
Select American Airlines flight, departing Sun, Oct. 5 from Denver to Ontario, returning Fri, Oct. 10, priced at CA $350 found 5 days ago
American Airlines
Sun, Oct. 5 - Fri, Oct. 10
DEN
Denver
ONT
Ontario
CA $372 Roundtrip, found 5 days ago
CA $372
Roundtrip
found 5 days ago
Select American Airlines flight, departing Sun, Oct. 5 from Denver to Ontario, returning Fri, Oct. 10, priced at CA $372 found 5 days ago
American Airlines
Sun, Oct. 5 - Fri, Oct. 10
DEN
Denver
ONT
Ontario
CA $381 Roundtrip, found 5 days ago
CA $381
Roundtrip
found 5 days ago
Select American Airlines flight, departing Sun, Oct. 5 from Denver to Ontario, returning Fri, Oct. 10, priced at CA $381 found 5 days ago
United
Sun, Aug. 24 - Sun, Aug. 31
DEN
Denver
ONT
Ontario
CA $391 Roundtrip, found 1 day ago
CA $391
Roundtrip
found 1 day ago
Select United flight, departing Sun, Aug. 24 from Denver to Ontario, returning Sun, Aug. 31, priced at CA $391 found 1 day ago
Alaska Airlines
Wed, Aug. 13 - Sun, Aug. 31
DEN
Denver
ONT
Ontario
CA $456 Roundtrip, found 3 days ago
CA $456
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Wed, Aug. 13 from Denver to Ontario, returning Sun, Aug. 31, priced at CA $456 found 3 days ago
JetBlue Airways
Wed, Aug. 13 - Sun, Aug. 31
DEN
Denver
ONT
Ontario
CA $753 Roundtrip, found 3 days ago
CA $753
Roundtrip
found 3 days ago
Select JetBlue Airways flight, departing Wed, Aug. 13 from Denver to Ontario, returning Sun, Aug. 31, priced at CA $753 found 3 days ago

Find the cheapest month to fly from Denver (DEN) to Ontario (ONT)

April is typically the cheapest month to fly

From CA $66 - CA $121 per traveller.

Graph displaying average flight prices per month

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