Photo by Ontario Convention & Visitors Bureau / Jon Edwards.

$132 Cheap Alaska Airlines flights Denver (DEN) to Ontario (ONT)
$132 Cheap Alaska Airlines flights Denver (DEN) to Ontario (ONT)
Prices were available within the past 7 days and start at $132 for one-way flights and $177 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, May 5 - Sat, May 9
DEN
Denver
ONT
Ontario
$177 Roundtrip, found 2 days ago
$177
Roundtrip
found 2 days ago

Tue, May 5 - Sat, May 9
DEN
Denver
ONT
Ontario
$335 Roundtrip, found 2 days ago
$335
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 - $142 per traveler.
Travel information
Origin airport | Denver Intl. |
|---|---|
Destination airport | Los Angeles - Ontario Intl. |
Airlines serving | Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, United |
Popular airline | Frontier Airlines |
Distance | 1306 km |
Average flight time | 1 hour 23 mins |
Explore a world of travel with Expedia
Most Popular Alaska Airlines Routes from Ontario
- Ontario to Portland (ONT - PDX)
- Idaho Falls to Ontario (IDA - ONT)
- Orlando to Los Angeles (MCO - LAX)
- Palm Springs to New York (PSP - JFK)
- Seattle Paine Field Intl. Airport to Los Angeles (PAE - LAX)
- Phoenix to Boise (PHX - BOI)
- Seattle to San Antonio (SEA - SAT)
- Springfield to Sacramento (SGF - SMF)
- San Diego to Fayetteville (SAN - XNA)
- Oakland to Newark Liberty Intl. Airport (OAK - EWR)
Popular Domestic Routes in Los Angeles - Ontario Intl.
- Springfield to Sacramento (SGF - SMF)
- Nashville to Seoul (BNA - ICN)
- Oakland to Newark Liberty Intl. Airport (OAK - EWR)
- Sacramento to Las Vegas (SMF - LAS)
- Palm Springs to New York (PSP - JFK)
- Milwaukee to Las Vegas (MKE - LAS)
- Seattle to San Antonio (SEA - SAT)
- Idaho Falls to Ontario (IDA - ONT)
- Los Angeles to New York (LAX - JFK)
- Ontario to Portland (ONT - PDX)