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$95+ 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 24/5. 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
29 Apr — 6 May1
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 24 April 2025.

Cheapest one-way flight

$562

Cheapest airline

Alaska Airlines

Most popular destination

Auckland Intl (AKL)

Good one-way deal

$1,112 or less
The cheapest one-way flight from Ontario is currently to Nadi.
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On average, Alaska Airlines currently has the cheapest one-way flight from Ontario (avg. price of $211).
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Auckland Intl (AKL) is currently the most popular flight destination from Ontario (average return price of $1,392).
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Price to beat on a one-way flight from Ontario.
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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 24 April 2025.

Wed 14/509:56ONT - PDX
Nonstop2h 25mAlaska Airlines
Sat 17/521:41PDX - ONT
Nonstop2h 16mAlaska Airlines
Deal found 24/4$296
Mon 12/518:20ONT - PDX
1 stop3h 55mSouthwest
Tue 13/506:45PDX - ONT
1 stop3h 25mSouthwest
Deal found 23/4$321
Fri 30/513:36ONT - PDX
1 stop7h 11mUnited Airlines
Sun 1/605:30PDX - ONT
1 stop6h 44mUnited Airlines
Deal found 23/4$353
Wed 28/511:44ONT - PDX
1 stop5h 15mDelta
Tue 3/605:30PDX - ONT
1 stop6h 45mDelta
Deal found 24/4$363
Wed 4/611:51ONT - BZN
1 stop5h 47mAlaska Airlines
Tue 10/615:59BZN - ONT
1 stop7h 47mAlaska Airlines
Deal found 23/4$408
Wed 4/611:44ONT - BZN
2 stops11h 20mDelta
Tue 10/619:30BZN - ONT
1 stop5h 16mDelta
Deal found 23/4$418
Tue 15/722:59ONT - MOB
1 stop9h 14mDelta
Tue 29/717:15MOB - ONT
1 stop7h 14mDelta
Deal found 24/4$475
Sat 2/818:10ONT - BZN
1 stop5h 01mHawaiian Airlines
Wed 6/819:25BZN - ONT
1 stop5h 48mHawaiian Airlines
Deal found 23/4$485
Mon 2/619:25ONT - PDX
1 stop4h 32mAmerican Airlines
Thu 5/615:14PDX - ONT
1 stop6h 24mAmerican Airlines
Deal found 23/4$509
Mon 12/516:57ONT - BIL
1 stop6h 22mDelta
Mon 19/505:20BIL - ONT
1 stop4h 51mDelta
Deal found 23/4$516
Tue 19/816:00ONT - BIL
1 stop7h 08mAlaska Airlines
Sat 23/819:18BIL - ONT
1 stop5h 41mAlaska Airlines
Deal found 23/4$517
Thu 3/722:05ONT - GPT
1 stop8h 57mDelta
Sat 19/706:00GPT - ONT
1 stop7h 07mDelta
Deal found 23/4$526

Find flights from Ontario within your budget

Find flights departing from Ontario that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 24 April 2025. In the last 7 days, Cheapflights users made a total of 134,765 searches

Fly to

Auckland

Route

Departure

Return

Price

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Mon 12/5

18:20-22:15

1 stop3h 55m

Portland

Tue 13/5

06:45-10:10

1 stop3h 25m

$321

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Thu 15/5

10:00-12:22

Nonstop2h 22m

Portland

Wed 21/5

21:41-23:57

Nonstop2h 16m

$330

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Fri 30/5

13:36-20:47

1 stop7h 11m

Portland

Sun 1/6

05:30-12:14

1 stop6h 44m

$353

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Wed 28/5

11:44-16:59

1 stop5h 15m

Portland

Tue 3/6

05:30-12:15

1 stop6h 45m

$363

OntarioBozeman

ONT - BZN

ONTBZN

Ontario

Wed 4/6

11:51-18:38

1 stop5h 47m

Bozeman Gallatin Field

Tue 10/6

15:59-22:46

1 stop7h 47m

$408

OntarioBozeman

ONT - BZN

ONTBZN

Ontario

Wed 4/6

11:44-00:04

2 stops11h 20m

Bozeman Gallatin Field

Tue 10/6

19:30-23:46

1 stop5h 16m

$418

OntarioMobile

ONT - MOB

ONTMOB

Ontario

Tue 15/7

22:59-10:13

1 stop9h 14m

Mobile

Tue 29/7

17:15-22:29

1 stop7h 14m

$475

OntarioBozeman

ONT - BZN

ONTBZN

Ontario

Sat 2/8

18:10-00:11

1 stop5h 01m

Bozeman Gallatin Field

Wed 6/8

19:25-00:13

1 stop5h 48m

$485

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Mon 2/6

19:25-23:57

1 stop4h 32m

Portland

Thu 5/6

15:14-21:38

1 stop6h 24m

$509

OntarioBillings

ONT - BIL

ONTBIL

Ontario

Mon 12/5

16:57-00:19

1 stop6h 22m

Billings Logan Intl

Mon 19/5

05:20-09:11

1 stop4h 51m

$516

Flights are sorted by cheapest return flights first.

Deals found on 23/4

Showing 1-10 of 54 results
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Best time to book a flight from Ontario

Have a flexible travel schedule? Discover the best time to fly from Ontario with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Ontario

Get recent, data-driven insights about flights from Ontario including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Ontario?

Currently, April is the cheapest month in which you can book a flight from Ontario (average of $562). Flying from Ontario in December will prove the most costly (average of $1,170). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

What are popular destinations to fly to from Ontario?

Some of the most frequent flights departing from Ontario everyday are: Dallas (123 flights per day), Seattle (106 flights per day), and San Francisco (82 flights per day).

Honolulu

Honolulu

From $664

What is the cheapest place to fly to from Ontario?

The cheapest city to fly to from Ontario is Honolulu, with prices starting at $1,112. Explore other affordable destinations below.

Honolulu

Honolulu

From $664

Airline reviews for flights from Ontario

Get insights into the airlines that provide service from Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing airline for your flight from Ontario. In the last 7 days, Cheapflights users made a total of 134,765 searches.
China Airlines
8.3
Very Good
727 reviews
Check prices

Entertainment

8.0

Overall

8.3

Comfort

8.0

Crew

8.5

Food

7.8

Boarding

8.3

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2025

YVR - TPE

I like the system, but the problem is the food , thre is no option, as a chef i don't recommend the food is worst we keep our hungry until taipe from vancouver
China Airlines
8.3
Very Good
727 reviews
China Airlines
8.3
Very Good
727 reviews
Check prices

Entertainment

8.0

Overall

8.3

Comfort

8.0

Crew

8.5

Food

7.8

Boarding

8.3

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2025

YVR - TPE

I like the system, but the problem is the food , thre is no option, as a chef i don't recommend the food is worst we keep our hungry until taipe from vancouver
Alaska Airlines
8.0
Very Good
9,918 reviews
China Airlines
8.3
Very Good
727 reviews
Check prices

Entertainment

8.0

Overall

8.3

Comfort

8.0

Crew

8.5

Food

7.8

Boarding

8.3

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2025

YVR - TPE

I like the system, but the problem is the food , thre is no option, as a chef i don't recommend the food is worst we keep our hungry until taipe from vancouver
Delta
8.0
Very Good
7,920 reviews
China Airlines
8.3
Very Good
727 reviews
Check prices

Entertainment

8.0

Overall

8.3

Comfort

8.0

Crew

8.5

Food

7.8

Boarding

8.3

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2025

YVR - TPE

I like the system, but the problem is the food , thre is no option, as a chef i don't recommend the food is worst we keep our hungry until taipe from vancouver
Qatar Airways
7.4
Good
3,560 reviews
China Airlines
8.3
Very Good
727 reviews
Check prices

Entertainment

8.0

Overall

8.3

Comfort

8.0

Crew

8.5

Food

7.8

Boarding

8.3

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2025

YVR - TPE

I like the system, but the problem is the food , thre is no option, as a chef i don't recommend the food is worst we keep our hungry until taipe from vancouver
United Airlines
7.4
Good
8,685 reviews
China Airlines
8.3
Very Good
727 reviews
Check prices

Entertainment

8.0

Overall

8.3

Comfort

8.0

Crew

8.5

Food

7.8

Boarding

8.3

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2025

YVR - TPE

I like the system, but the problem is the food , thre is no option, as a chef i don't recommend the food is worst we keep our hungry until taipe from vancouver

Browse thousands of different options on Cheapflights for your next trip

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Related info for your journey

Access useful and relevant information related to your journey from Ontario. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 24 April 2025.

  • What are the most popular destinations to fly to from Ontario?

    The most popular destinations from Ontario this month are Dallas/Fort Worth Airport, Denver, Honolulu. The top year-round destinations include Denver, Dallas/Fort Worth Airport, Guadalajara.

  • What is the cheapest flight from Ontario to anywhere?

    Users have flown out of Ontario for as low as $1,112 to Honolulu (prices may vary depending on the airline and departure time). On average, users have booked flights for $1,149 to fly from Ontario.

  • What is the cheapest first class flight from Ontario?

    If you’re looking for a cheap first-class flight from Ontario, consider Seattle. Prices start at $2,667 so you can fly first-class even on a budget.

  • What is the cheapest month to fly from Ontario?

    At the present moment the cheapest month to fly from Ontario is currently April; with December being the most expensive. Prices will vary depending on multiple factors such as booking in advance, airline and departure airports and times.

  • Where are the cheapest places to fly to from Ontario?

    Here are some of the cheapest flight destinations from Ontario:
    Fly from Ontario to Auckland from $1,701 round trip

  • How does Cheapflights help users find flights from Ontario?

    When you search for this flight from Ontario, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the best flight for you.

  • Why should you use Cheapflights to find cheap flight tickets from Ontario?

    Millions of users choose and trust Cheapflights to book the best flight deals from Ontario for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

  • Can Cheapflights find flights from Ontario with no change fees?

    Cheapflights does show flights with no change fees to all users. To see these options for flights from Ontario, users can toggle the no change fees filter when performing a flight search.

  • Can Cheapflights notify me if prices for flights from Ontario become cheaper?

    Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and use a valid email address to enable the Price Alerts feature. That’s it!

See more FAQs

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ontario?

When you search for this flight from Ontario, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the best flight for you.

Why should you use Cheapflights to find cheap flight tickets from Ontario?

Millions of users choose and trust Cheapflights to book the best flight deals from Ontario for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Ontario with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Ontario, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Ontario become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and use a valid email address to enable the Price Alerts feature. That’s it!

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