Find Direct Flights from Ontario - Compare and Save

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Cheap Direct Flight Deals from Ontario

Prices from ONT, departing Sun 10/4 and returning Sun 10/11

Find Direct Flights from Ontario

Here are some of the best deals found on KAYAK recently from the most popular airlines for direct round-trip flights from Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.
Fri, Oct 2 - Fri, Oct 2
Frontier Logo
12:07 pm - 1:43 pmONT  Ontario-SFO San Francisco
1h 36mnonstop
Frontier Logo
6:02 pm - 7:36 pmSFO  San Francisco-ONT Ontario
1h 34mnonstop
$60Frontier
Thu, Sep 24 - Mon, Sep 28
Frontier Logo
12:07 pm - 1:43 pmONT  Ontario-SFO San Francisco
1h 36mnonstop
Frontier Logo
6:02 pm - 7:36 pmSFO  San Francisco-ONT Ontario
1h 34mnonstop
$64Frontier
Thu, Oct 1 - Thu, Oct 8
Frontier Logo
12:07 pm - 1:43 pmONT  Ontario-SFO San Francisco
1h 36mnonstop
Frontier Logo
6:02 pm - 7:40 pmSFO  San Francisco-ONT Ontario
1h 38mnonstop
$65Frontier
Tue, Sep 22 - Tue, Sep 29
Frontier Logo
6:15 am - 9:35 amONT  Ontario-DEN Denver Intl
2h 20mnonstop
Frontier Logo
9:05 am - 10:30 amDEN  Denver Intl-ONT Ontario
2h 25mnonstop
$96Frontier
Wed, Nov 4 - Sat, Nov 7
United Airlines Logo
7:00 am - 1:03 pmONT  Ontario-ORD Chicago O'Hare Intl
4h 03mnonstop
United Airlines Logo
4:15 pm - 6:47 pmORD  Chicago O'Hare Intl-ONT Ontario
4h 32mnonstop
$293United Airlines
Sat, Sep 26 - Wed, Sep 30
United Airlines Logo
7:00 am - 1:10 pmONT  Ontario-ORD Chicago O'Hare Intl
4h 10mnonstop
United Airlines Logo
8:20 pm - 10:49 pmORD  Chicago O'Hare Intl-ONT Ontario
4h 29mnonstop
$294United Airlines
Thu, Oct 29 - Thu, Nov 5
Alaska Airlines Logo
7:00 am - 10:00 amONT  Ontario-HNL Honolulu
6h 00mnonstop
Alaska Airlines Logo
2:00 pm - 9:42 pmHNL  Honolulu-ONT Ontario
5h 42mnonstop
$341Alaska Airlines
Wed, Sep 23 - Thu, Oct 8
Alaska Airlines Logo
9:31 am - 12:30 pmONT  Ontario-HNL Honolulu
5h 59mnonstop
Alaska Airlines Logo
12:58 pm - 9:29 pmHNL  Honolulu-ONT Ontario
5h 31mnonstop
$343Alaska Airlines
Sat, Sep 26 - Sat, Oct 3
JetBlue Logo
10:39 pm - 7:00 amONT  Ontario-JFK New York John F Kennedy Intl
5h 21mnonstop
JetBlue Logo
5:59 pm - 8:57 pmJFK  New York John F Kennedy Intl-ONT Ontario
5h 58mnonstop
$379JetBlue
Sat, Sep 19 - Sat, Sep 26
JetBlue Logo
10:39 pm - 7:00 amONT  Ontario-JFK New York John F Kennedy Intl
5h 21mnonstop
JetBlue Logo
5:59 pm - 8:57 pmJFK  New York John F Kennedy Intl-ONT Ontario
5h 58mnonstop
$388JetBlue
Booking Insights

KAYAK's insights & trends for direct flights from Ontario

Get data-powered insights and trends into direct flights from Ontario to help you find the cheapest direct flights, the best time to fly and much more.

How much is a direct flight from Ontario?

On average, a direct flight from Ontario costs $380. However, cheaper non-stop flights can be found. The cheapest direct flight found on KAYAK in the last 2 weeks cost $69 and flew to San Francisco Airport.

Good to know - Direct flights from Ontario to Worldwide

Low season

January

High season

October

Average price round-trip

$424
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly and prices are also 11% lower on average.
(avg. price over the last 2 weeks)

Everything you need to know for your flight from Ontario

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