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$126+ 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 19/4. 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
8 Apr — 15 Apr1
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 3 April 2025.

Cheapest one-way flight

$537

Cheapest airline

Alaska Airlines

Most popular destination

Auckland Intl (AKL)

Good one-way deal

$1,159 or less
The cheapest one-way flight from Ontario is currently to Auckland Intl.
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On average, Alaska Airlines currently has the cheapest one-way flight from Ontario (avg. price of $184).
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Auckland Intl (AKL) is currently the most popular flight destination from Ontario (average return price of $884).
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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 3 April 2025.

Wed 30/406:00ONT - PDX
1 stop4h 52mAlaska Airlines
Fri 2/521:42PDX - ONT
Nonstop2h 16mAlaska Airlines
Deal found 2/4$309
Tue 20/506:00ONT - PDX
1 stop6h 39mUnited Airlines
Thu 22/505:30PDX - ONT
1 stop6h 44mUnited Airlines
Deal found 2/4$311
Wed 11/615:50ONT - PDX
1 stop6h 10mSouthwest
Sun 15/605:20PDX - ONT
1 stop7h 30mSouthwest
Deal found 2/4$335
Sat 21/617:45ONT - PDX
1 stop4h 34mDelta
Sat 28/617:50PDX - ONT
1 stop4h 56mDelta
Deal found 3/4$414
Tue 13/506:00ONT - BZN
1 stop6h 59mAlaska Airlines
Tue 20/505:32BZN - ONT
1 stop4h 45mAlaska Airlines
Deal found 2/4$415
Wed 14/506:00ONT - BZN
1 stop3h 49mDelta
Tue 20/505:40BZN - ONT
1 stop4h 31mDelta
Deal found 2/4$417
Wed 23/407:00ONT - PDX
Nonstop2h 26mHawaiian Airlines
Sun 27/407:00PDX - ONT
Nonstop2h 16mHawaiian Airlines
Deal found 2/4$424
Tue 6/517:15ONT - BIL
1 stop5h 58mDelta
Tue 20/505:20BIL - ONT
1 stop4h 51mDelta
Deal found 2/4$462
Tue 6/511:46ONT - HLN
1 stop6h 03mAlaska Airlines
Tue 13/519:29HLN - ONT
1 stop16h 22mAlaska Airlines
Deal found 2/4$494
Fri 23/522:00ONT - GPT
1 stop8h 29mDelta
Sun 25/517:03GPT - ONT
1 stop8h 05mDelta
Deal found 1/4$548
Fri 9/516:29ONT - BIL
1 stop6h 30mAlaska Airlines
Sat 17/515:45BIL - ONT
1 stop9h 12mAlaska Airlines
Deal found 2/4$548
Sat 3/506:00ONT - GTF
1 stop4h 14mDelta
Wed 7/518:19GTF - ONT
1 stop6h 23mDelta
Deal found 1/4$551

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 3 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

Wed 30/4

05:45-10:40

1 stop4h 55m

Portland

Sat 3/5

17:15-22:57

1 stop5h 42m

$309

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Tue 20/5

06:00-12:39

1 stop6h 39m

Portland

Thu 22/5

05:30-12:14

1 stop6h 44m

$311

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Tue 20/5

06:00-12:18

1 stop6h 18m

Portland

Sun 25/5

16:00-22:46

1 stop6h 46m

$325

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Wed 11/6

15:50-22:00

1 stop6h 10m

Portland

Sun 15/6

05:20-12:50

1 stop7h 30m

$335

OntarioBozeman

ONT - BZN

ONTBZN

Ontario

Tue 13/5

06:00-13:59

1 stop6h 59m

Bozeman Gallatin Field

Tue 20/5

05:32-09:17

1 stop4h 45m

$415

OntarioBozeman

ONT - BZN

ONTBZN

Ontario

Wed 14/5

06:00-10:49

1 stop3h 49m

Bozeman Gallatin Field

Wed 21/5

05:40-09:11

1 stop4h 31m

$417

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Wed 23/4

07:00-09:26

Nonstop2h 26m

Portland

Sun 27/4

07:00-09:16

Nonstop2h 16m

$424

OntarioBillings

ONT - BIL

ONTBIL

Ontario

Tue 6/5

17:15-00:13

1 stop5h 58m

Billings Logan Intl

Tue 20/5

05:20-09:11

1 stop4h 51m

$462

OntarioHelena

ONT - HLN

ONTHLN

Ontario

Tue 6/5

11:46-18:49

1 stop6h 03m

Helena

Tue 13/5

19:29-10:51

1 stop16h 22m

$494

OntarioGulfport

ONT - GPT

ONTGPT

Ontario

Fri 23/5

22:00-08:29

1 stop8h 29m

Gulfport Biloxi Regional

Sun 25/5

17:03-23:08

1 stop8h 05m

$548

Flights are sorted by cheapest return flights first.

Deals found on 2/4

Showing 1-10 of 60 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 $602). Flying from Ontario in September will prove the most costly (average of $1,244). 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: Seattle (84 flights per day), San Francisco (82 flights per day), and Dallas (60 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 $1,159. 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
8.2
Very Good
724 reviews
Check prices

Food

7.8

Comfort

8.0

Boarding

8.3

Entertainment

8.0

Crew

8.5

Overall

8.2

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
8.2
Very Good
724 reviews
China Airlines
8.2
Very Good
724 reviews
Check prices

Food

7.8

Comfort

8.0

Boarding

8.3

Entertainment

8.0

Crew

8.5

Overall

8.2

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
9,831 reviews
China Airlines
8.2
Very Good
724 reviews
Check prices

Food

7.8

Comfort

8.0

Boarding

8.3

Entertainment

8.0

Crew

8.5

Overall

8.2

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
7,897 reviews
China Airlines
8.2
Very Good
724 reviews
Check prices

Food

7.8

Comfort

8.0

Boarding

8.3

Entertainment

8.0

Crew

8.5

Overall

8.2

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
Hawaiian Airlines
7.9
Good
2,344 reviews
China Airlines
8.2
Very Good
724 reviews
Check prices

Food

7.8

Comfort

8.0

Boarding

8.3

Entertainment

8.0

Crew

8.5

Overall

8.2

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
3,540 reviews
China Airlines
8.2
Very Good
724 reviews
Check prices

Food

7.8

Comfort

8.0

Boarding

8.3

Entertainment

8.0

Crew

8.5

Overall

8.2

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

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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 3 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, Guadalajara. 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 $1,159 to Honolulu (prices may vary depending on the airline and departure time). On average, users have booked flights for $1,198 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 $2,780 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 September 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 $1,843 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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