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ONT flight deals

Cheap flights from Ontario

We watch every fare leaving ONT and alert you when prices drop — recent deals have been up to 76% off. Stop searching and let the deals come to you.

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Recent deals from ONT

Members saw the prices and booking links the moment we found them.

San Francisco76% Off
ONTSFO

San FranciscoUnited States

Sat, Dec 5 – Sat, Dec 12FrontierNonstop 1 hr 35 min
Roundtrip from
$888
Denver58% Off
ONTDEN

DenverUnited States

Fri, Nov 6 – Sat, Nov 14FrontierNonstop 2 hr 21 min
Roundtrip from
$888
San Jose57% Off
ONTSJC

San JoseUnited States

Sat, Dec 5 – Sat, Dec 12SouthwestNonstop 1 hr 15 min
Roundtrip from
$888
Seattle57% Off
ONTSEA

SeattleUnited States

Mon, Nov 2 – Mon, Nov 9FrontierNonstop 3 hr 2 min
Roundtrip from
$888
Laramie52% Off
ONTLAR

LaramieUnited States

Thu, Dec 3 – Wed, Dec 9United1 stop 7 hr 17 min
Roundtrip from
$888
Auckland48% Off
ONTAKL

AucklandNew Zealand

Sun, Oct 25 – Sat, Oct 31Delta2 stops 22 hr 20 min
Roundtrip from
$888
Detroit47% Off
ONTDTW

DetroitUnited States

Sat, Dec 5 – Sat, Dec 12Frontier1 stop 6 hr 18 min
Roundtrip from
$888
Omaha44% Off
ONTOMA

OmahaUnited States

Sat, Nov 7 – Fri, Nov 13Frontier1 stop 6 hr 11 min
Roundtrip from
$888
Nashville40% Off
ONTBNA

NashvilleUnited States

Mon, Nov 9 – Wed, Nov 18Frontier1 stop 5 hr 46 min
Roundtrip from
$888
Oklahoma City38% Off
ONTOKC

Oklahoma CityUnited States

Fri, Nov 6 – Fri, Nov 13Frontier1 stop 5 hr 32 min
Roundtrip from
$888
Oakland38% Off
ONTOAK

OaklandUnited States

Sat, Dec 5 – Sat, Dec 12SouthwestNonstop 1 hr 20 min
Roundtrip from
$888
Indianapolis37% Off
ONTIND

IndianapolisUnited States

Sat, Nov 7 – Fri, Nov 13Frontier1 stop 5 hr 38 min
Roundtrip from
$888

Showing 12 of 39 deals

Before you fly from ONT

Getting to the airport, connecting and the bag rules for the airlines that fly from Ontario.

Ontario Airport guideA taxi to downtown Los Angeles takes 45–75 minutes (about $90–$120 to downtown Los Angeles). Terminals, parking and the airlines that fly here.

Bag rules for airlines at ONT

American carry-on: 22 × 14 × 9 in Delta carry-on: 22 × 14 × 9 in United carry-on: 22 × 14 × 9 in Southwest carry-on: 24 × 16 × 10 in Alaska carry-on: 22 × 14 × 9 in JetBlue carry-on: 22 × 14 × 9 in Frontier carry-on: 24 × 16 × 10 in Volaris carry-on: 55 × 40 × 25 cm China Airlines carry-on: 56 × 36 × 23 cm

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Flights from Ontario: FAQ

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