Cheap flights from Adelanto

View AU$64 flight on Wed., 28 MayOpens in a new window

Featured airlines

American Airlines
United
Delta
Alaska Airlines
Avianca
KLM
JetBlue Airways
British Airways
Frontier Airlines

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 35% on select hotels after you book a flight*
  • payments icon
    Earn twice
    Earn your airline miles on top of our rewards
    Sign in

Cheapest flights from Ontario

Prices were available within the past 7 days and start at AU$64 for one-way flights and AU$80 for return, for the period specified. Prices and availability are subject to change. Additional terms apply.
Frontier Airlines
Ontario — San Francisco
ONT - SFO with Frontier Airlines
Fri, 24 Jan
Frontier Airlines
San Francisco — Ontario
SFO - ONT with Frontier Airlines
Sun, 26 Jan
Found 6 days ago
From AU$80
Select flight from Ontario to San Francisco, departing on January 24 with Frontier Airlines, and returning from San Francisco to Ontario on January 26 with Frontier Airlines. Price from AU$80, Found 6 days ago.
Frontier Airlines
Ontario — Las Vegas
ONT - LAS with Frontier Airlines
Sat, 15 Mar
Frontier Airlines
Las Vegas — Ontario
LAS - ONT with Frontier Airlines
Wed, 19 Mar
Found 6 days ago
From AU$87
Select flight from Ontario to Las Vegas, departing on March 15 with Frontier Airlines, and returning from Las Vegas to Ontario on March 19 with Frontier Airlines. Price from AU$87, Found 6 days ago.
Frontier Airlines
Ontario — San Francisco
ONT - SFO with Frontier Airlines
Fri, 24 Jan
Frontier Airlines
San Francisco — Ontario
SFO - ONT with Frontier Airlines
Mon, 27 Jan
Found 6 days ago
From AU$96
Select flight from Ontario to San Francisco, departing on January 24 with Frontier Airlines, and returning from San Francisco to Ontario on January 27 with Frontier Airlines. Price from AU$96, Found 6 days ago.
Frontier Airlines
Ontario — Las Vegas
ONT - LAS with Frontier Airlines
Thu, 20 Mar
Frontier Airlines
Las Vegas — Ontario
LAS - ONT with Frontier Airlines
Tue, 25 Mar
Found 6 days ago
From AU$99
Select flight from Ontario to Las Vegas, departing on March 20 with Frontier Airlines, and returning from Las Vegas to Ontario on March 25 with Frontier Airlines. Price from AU$99, Found 6 days ago.
Frontier Airlines
Ontario — San Francisco
ONT - SFO with Frontier Airlines
Thu, 27 Feb
Frontier Airlines
San Francisco — Ontario
SFO - ONT with Frontier Airlines
Thu, 13 Mar
Found 6 days ago
From AU$103
Select flight from Ontario to San Francisco, departing on February 27 with Frontier Airlines, and returning from San Francisco to Ontario on March 13 with Frontier Airlines. Price from AU$103, Found 6 days ago.
Frontier Airlines
Ontario — Las Vegas
ONT - LAS with Frontier Airlines
Thu, 20 Mar
Frontier Airlines
Las Vegas — Ontario
LAS - ONT with Frontier Airlines
Mon, 24 Mar
Found 6 days ago
From AU$107
Select flight from Ontario to Las Vegas, departing on March 20 with Frontier Airlines, and returning from Las Vegas to Ontario on March 24 with Frontier Airlines. Price from AU$107, Found 6 days ago.
Frontier Airlines
Ontario — Las Vegas
ONT - LAS with Frontier Airlines
Tue, 15 Apr
Frontier Airlines
Las Vegas — Ontario
LAS - ONT with Frontier Airlines
Tue, 15 Apr
Found 2 days ago
From AU$108
Select flight from Ontario to Las Vegas, departing on April 15 with Frontier Airlines, and returning from Las Vegas to Ontario on April 15 with Frontier Airlines. Price from AU$108, Found 2 days ago.
Frontier Airlines
Ontario — Las Vegas
ONT - LAS with Frontier Airlines
Fri, 28 Feb
Frontier Airlines
Las Vegas — Ontario
LAS - ONT with Frontier Airlines
Mon, 3 Mar
Found 6 days ago
From AU$109
Select flight from Ontario to Las Vegas, departing on February 28 with Frontier Airlines, and returning from Las Vegas to Ontario on March 3 with Frontier Airlines. Price from AU$109, Found 6 days ago.
Frontier Airlines
Ontario — Seattle
ONT - SEA with Frontier Airlines
Mon, 10 Mar
Frontier Airlines
Seattle — Ontario
SEA - ONT with Frontier Airlines
Mon, 17 Mar
Found 6 days ago
From AU$144
Select flight from Ontario to Seattle, departing on March 10 with Frontier Airlines, and returning from Seattle to Ontario on March 17 with Frontier Airlines. Price from AU$144, Found 6 days ago.
United
Ontario — San Francisco
ONT - SFO with United
Wed, 19 Feb
United
San Francisco — Ontario
SFO - ONT with United
Thu, 20 Feb
Found 15 hours ago
From AU$190
Select flight from Ontario to San Francisco, departing on February 19 with United, and returning from San Francisco to Ontario on February 20 with United. Price from AU$190, Found 15 hours ago.
Frontier Airlines
Ontario — Denver
ONT - DEN with Frontier Airlines
Wed, 28 May
Found 6 days ago
From AU$64
Select flight from Ontario to Denver, departing on with Frontier Airlines. Price from AU$64, Found 6 days ago.
Frontier Airlines
Ontario — Denver
ONT - DEN with Frontier Airlines
Thu, 29 May
Found 6 days ago
From AU$80
Select flight from Ontario to Denver, departing on with Frontier Airlines. Price from AU$80, Found 6 days ago.
United
Ontario — San Francisco
ONT - SFO with United
Thu, 3 Apr
Found 17 hours ago
From AU$95
Select flight from Ontario to San Francisco, departing on with United. Price from AU$95, Found 17 hours ago.
United
Ontario — San Francisco
ONT - SFO with United
Sat, 1 Feb
Found 17 hours ago
From AU$111
Select flight from Ontario to San Francisco, departing on with United. Price from AU$111, Found 17 hours ago.
United
Ontario — San Francisco
ONT - SFO with United
Wed, 22 Jan
Found 5 days ago
From AU$113
Select flight from Ontario to San Francisco, departing on with United. Price from AU$113, Found 5 days ago.
Alaska Airlines
Ontario — Seattle
ONT - SEA with Alaska Airlines
Sat, 17 May
Found 2 hours ago
From AU$127
Select flight from Ontario to Seattle, departing on with Alaska Airlines. Price from AU$127, Found 2 hours ago.
Alaska Airlines
Ontario — Portland
ONT - PDX with Alaska Airlines
Wed, 12 Feb
Found 3 hours ago
From AU$127
Select flight from Ontario to Portland, departing on with Alaska Airlines. Price from AU$127, Found 3 hours ago.
Delta
Ontario — Seattle
ONT - SEA with Delta
Wed, 12 Mar
Found 1 day ago
From AU$127
Select flight from Ontario to Seattle, departing on with Delta. Price from AU$127, Found 1 day ago.
Alaska Airlines
Ontario — Seattle
ONT - SEA with Alaska Airlines
Wed, 12 Mar
Found 1 day ago
From AU$143
Select flight from Ontario to Seattle, departing on with Alaska Airlines. Price from AU$143, Found 1 day ago.
American Airlines
Ontario — Dallas
ONT - DFW with American Airlines
Tue, 1 Apr
Found 4 days ago
From AU$146
Select flight from Ontario to Dallas, departing on with American Airlines. Price from AU$146, Found 4 days ago.

Flights from Adelanto: Essential Travel Information

Cheapest flight from Adelanto
AU$80 (roundtrip)
Best airlines to fly from Adelanto
Frontier Airlines, United, Alaska Airlines, Delta, American Airlines
Cheapest month to fly from Adelanto
January
Adelanto IATA code
ONT
Adelanto Country/State
California
Airline ticket deals from Adelanto
AU$80 - AU$190
*Available to Expedia members.