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$99+ Cheap flights from Ontario

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/3. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
ONT — AKL
23 Feb — 2 Mar1
1 adult

What to know about flights from Ontario

Discover essential information about flights departing from Ontario, including flight schedules, destinations, airlines operating at the Ontario airport, and any specific guidelines or requirements for travellers. Please note that the information is based on the most recent updates available. Data last updated 18 February 2025.

Cheapest one-way flight

$25

Cheapest airline

Alaska Airlines

Most popular destination

Auckland Intl (AKL)

Good one-way deal

$1,158 or less
The cheapest one-way flight from Ontario is currently to Las Vegas Harry Reid Intl.
On average, Alaska Airlines currently has the cheapest one-way flight from Ontario (avg. price of $172).
Auckland Intl (AKL) is currently the most popular flight destination from Ontario (average return price of $1,294).
Price to beat on a one-way flight from Ontario.

Find flights from Ontario

Cheapest flights from Ontario
Explore the most affordable flight options available from Ontario. Find the lowest fares based on data from user searches, with prices last updated on 18 February 2025.

Sun 23/307:00ONT - PDX
Nonstop2h 24mAlaska Airlines
Tue 25/321:41PDX - ONT
Nonstop2h 18mAlaska Airlines
Deal found 17/2$291
Tue 25/307:00ONT - PDX
Nonstop2h 24mHawaiian Airlines
Sat 29/321:41PDX - ONT
Nonstop2h 18mHawaiian Airlines
Deal found 17/2$326
Thu 13/313:30ONT - PDX
1 stop4h 36mDelta
Mon 17/317:26PDX - ONT
1 stop6h 30mDelta
Deal found 17/2$347
Sun 23/320:30ONT - PDX
1 stop4h 45mSouthwest
Tue 25/317:10PDX - ONT
1 stop4h 35mSouthwest
Deal found 17/2$352
Wed 9/406:00ONT - BZN
1 stop6h 59mAlaska Airlines
Tue 22/414:54BZN - ONT
1 stop6h 35mAlaska Airlines
Deal found 17/2$411
Tue 11/306:00ONT - PDX
1 stop6h 37mUnited Airlines
Wed 12/306:00PDX - ONT
1 stop3h 54mUnited Airlines
Deal found 17/2$431
Wed 9/417:15ONT - BZN
1 stop5h 47mDelta
Sat 19/413:10BZN - ONT
1 stop4h 23mDelta
Deal found 17/2$448
Sun 23/306:00ONT - BIL
1 stop3h 54mDelta
Sat 29/317:45BIL - ONT
1 stop5h 02mDelta
Deal found 17/2$483
Tue 15/416:17ONT - BZN
1 stop6h 13mUnited Airlines
Wed 16/414:10BZN - ONT
1 stop7h 32mUnited Airlines
Deal found 17/2$526
Thu 27/317:30ONT - BZN
1 stop4h 45mSouthwest
Sat 29/305:00BZN - ONT
2 stops8h 00mSouthwest
Deal found 17/2$636
Sat 29/305:05ONT - BIL
1 stop7h 18mUnited Airlines
Thu 3/414:30BIL - ONT
1 stop7h 12mUnited Airlines
Deal found 17/2$696
Sun 27/718:00ONT - BZN
1 stop4h 58mHawaiian Airlines
Sat 2/815:45BZN - ONT
1 stop5h 02mHawaiian Airlines
Deal found 17/2$709