Photo by Ontario Convention & Visitors Bureau / Jon Edwards.

$114 Cheap United flights Denver (DEN) to Ontario (ONT)
Prices were available within the past 7 days and start at $114 for one-way flights and $157 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Jan 13 - Tue, Jan 20
DEN
Denver
ONT
Ontario
$157 Roundtrip, found 2 days ago
$157
Roundtrip
found 2 days ago
Find the cheapest month to fly from Denver (DEN) to Ontario (ONT)
February is typically the cheapest month to fly
From $48 - $102 per traveler.
Alternative airports near Ontario
Prices were available within the past 7 days. Prices and availability are subject to change.
Origin airport | Denver Intl. |
|---|---|
Destination airport | Los Angeles - Ontario Intl. |
Airlines serving | Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, United |
Popular airline | American Airlines |
Distance | 1306 km |
Average flight time | 1 hour 21 mins |
Most Popular United Routes from Denver
Most Popular United Routes from Ontario
- Atlanta to Denver (ATL - DEN)
- Baltimore to Honolulu (BWI - HNL)
- Sacramento to Savannah (SMF - SAV)
- Los Angeles to Chicago (LAX - ORD)
- Durango to Rome (DRO - FCO)
- San Francisco to Baltimore (SFO - BWI)
- Duluth to Las Vegas (DLH - LAS)
- Chicago to Los Angeles (ORD - LAX)
- Orlando to Denver (MCO - DEN)
- San Francisco to Orlando (SFO - MCO)
Popular Domestic Routes in Los Angeles - Ontario Intl.
- Orlando to Denver (MCO - DEN)
- Seattle to Hong Kong (SEA - HKG)
- Duluth to Las Vegas (DLH - LAS)
- San Francisco to Baltimore (SFO - BWI)
- San Francisco to Orlando (SFO - MCO)
- Columbus to Phoenix (CMH - PHX)
- Sacramento to Savannah (SMF - SAV)
- Dallas to Nairobi (DFW - NBO)
- Durango to Rome (DRO - FCO)
- Chicago to Los Angeles (ORD - LAX)