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

For the current month, the most popular flights from Ontario are Guadalajara, Dallas/Fort Worth Airport, Denver. Denver, Dallas/Fort Worth Airport, Guadalajara are the most popular locations from Ontario year round.

What is the cheapest flight from Ontario to anywhere?

Users have flown out of Ontario for as low as $106 to Denver (prices may vary depending on the airline and departure time). On average, users have booked flights for $113 to fly from Ontario.

What is the cheapest first class flight from Ontario?

If you’re looking to fly first-class from Ontario to anywhere, put Denver on your list as prices start at $1,933 for this destination.

What is the cheapest month to fly from Ontario?

Currently, the cheapest month for flights from Ontario is April . The most expensive month for flights is December . The cheapest prices are shown above but prices will vary according to departure times, airlines, class and how early you book.

Where are the cheapest places to fly to from Ontario?

View the cheapest flight destinations from Ontario: Fly from Ontario to Sydney from $1,405 round trip

$89+ Flights from Ontario

What to know about flights from Ontario

Cheapest one-way flight	$28
Cheapest round-trip flight	$63
Cheapest airline	American Airlines
Most popular destination	Las Vegas Harry Reid Intl (LAS)
Good one-way deal	$113 or less

The cheapest one-way flight from Ontario is currently to Las Vegas Harry Reid Intl.

Search Deals

The cheapest round-trip flight from Ontario is currently to Las Vegas Harry Reid Intl.

Search Deals

On average, American Airlines currently has the cheapest one-way flight from Ontario (avg. price of $219).

Search Deals

Las Vegas Harry Reid Intl (LAS) is currently the most popular flight destination from Ontario (average return price of $99).

Search Deals

Price to beat on a one-way flight from Ontario.

Search Deals

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 21 February 2025.

Thu 3/405:40ONT - LAS

Nonstop1h 05mSouthwest

Wed 9/420:45LAS - ONT

Nonstop1h 00mSouthwest

Deal found 20/2$152

Wed 2/406:55ONT - PDX

Nonstop2h 24mAlaska Airlines

Wed 9/407:05PDX - ONT

Nonstop2h 23mAlaska Airlines

Deal found 19/2$246

Thu 3/416:30ONT - PDX

1 stop5h 50mSouthwest

Tue 8/406:45PDX - ONT

1 stop3h 25mSouthwest

Deal found 20/2$285

Thu 13/313:30ONT - PDX

1 stop4h 36mDelta

Mon 17/319:05PDX - ONT

1 stop4h 51mDelta

Deal found 20/2$307

Mon 3/314:43ONT - JFK

1 stop12h 47mFrontier

Tue 11/307:59JFK - ONT

1 stop10h 05mFrontier

Deal found 20/2$331

Wed 28/506:00ONT - PDX

1 stop6h 33mUnited Airlines

Sun 1/605:30PDX - ONT

1 stop6h 44mUnited Airlines

Deal found 19/2$365

Tue 1/407:00ONT - PDX

Nonstop2h 24mHawaiian Airlines

Tue 15/421:41PDX - ONT

Nonstop2h 18mHawaiian Airlines

Deal found 19/2$379

Fri 2/522:40ONT - JFK

Nonstop5h 20mJetBlue

Sun 4/518:10JFK - ONT

Nonstop6h 12mJetBlue

Deal found 20/2$403

Wed 12/306:00ONT - DTW

1 stop30h 53mAlaska Airlines

Mon 17/316:49DTW - ONT

1 stop9h 35mAlaska Airlines

Deal found 19/2$411

Mon 14/406:55ONT - JFK

1 stop29h 05mAlaska Airlines

Thu 17/418:46JFK - ONT

1 stop17h 42mAlaska Airlines

Deal found 20/2$434

Tue 1/406:00ONT - LAS

1 stop10h 55mAlaska Airlines

Tue 15/414:52LAS - ONT

2 stops9h 07mAlaska Airlines

Deal found 20/2$452

Tue 6/522:15ONT - JFK

1 stop8h 32mDelta

Sat 17/512:25JFK - ONT

1 stop10h 17mDelta

Deal found 20/2$513

Best flights from Ontario
Discover carefully curated flight deals from Ontario that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 21 February 2025.

Thu 3/405:40ONT - LAS

Nonstop1h 05mSouthwest

Wed 9/420:45LAS - ONT

Nonstop1h 00mSouthwest

Deal found 20/2$152

Wed 2/406:55ONT - PDX

Nonstop2h 24mAlaska Airlines

Wed 9/407:05PDX - ONT

Nonstop2h 23mAlaska Airlines

Deal found 19/2$246

Thu 13/313:30ONT - PDX

1 stop4h 36mDelta

Mon 17/319:05PDX - ONT

1 stop4h 51mDelta

Deal found 20/2$307

Mon 3/314:43ONT - JFK

1 stop12h 47mFrontier

Tue 11/307:59JFK - ONT

1 stop10h 05mFrontier

Deal found 20/2$331

Wed 28/506:00ONT - PDX

1 stop6h 33mUnited Airlines

Sun 1/605:30PDX - ONT

1 stop6h 44mUnited Airlines

Deal found 19/2$365

Tue 1/407:00ONT - PDX

Nonstop2h 24mHawaiian Airlines

Tue 15/421:41PDX - ONT

Nonstop2h 18mHawaiian Airlines

Deal found 19/2$379

Fri 2/522:40ONT - JFK

Nonstop5h 20mJetBlue

Sun 4/518:10JFK - ONT

Nonstop6h 12mJetBlue

Deal found 20/2$403

Thu 3/416:30ONT - PDX

1 stop5h 50mSouthwest

Tue 8/406:45PDX - ONT

1 stop3h 25mSouthwest

Deal found 20/2$285

Fri 11/415:55ONT - PDX

1 stop4h 14mMultiple Airlines

Sun 13/407:05PDX - ONT

Nonstop2h 23mMultiple Airlines

Deal found 20/2$632

Mon 7/422:40ONT - JFK

1 stop8h 50mAmerican Airlines

Wed 9/415:59JFK - ONT

1 stop9h 11mAmerican Airlines

Deal found 20/2$638

Wed 12/306:00ONT - DTW

1 stop30h 53mAlaska Airlines

Mon 17/316:49DTW - ONT

1 stop9h 35mAlaska Airlines

Deal found 19/2$411

Mon 14/406:55ONT - JFK

1 stop29h 05mAlaska Airlines

Thu 17/418:46JFK - ONT

1 stop17h 42mAlaska Airlines

Deal found 20/2$434

Direct flights from Ontario
Explore direct flight options from Ontario based on user searches, and compare prices and availability for your desired travel dates. Data last updated 21 February 2025.

Thu 3/405:40ONT - LAS

Nonstop1h 05mSouthwest

Wed 9/420:45LAS - ONT

Nonstop1h 00mSouthwest

Deal found 20/2$152

Wed 2/406:55ONT - PDX

Nonstop2h 24mAlaska Airlines

Wed 9/407:05PDX - ONT

Nonstop2h 23mAlaska Airlines

Deal found 19/2$246

Wed 23/420:59ONT - PDX

Nonstop2h 21mHawaiian Airlines

Sun 27/407:00PDX - ONT

Nonstop2h 16mHawaiian Airlines

Deal found 20/2$293

Fri 2/522:40ONT - JFK

Nonstop5h 20mJetBlue

Sun 4/518:10JFK - ONT

Nonstop6h 12mJetBlue

Deal found 20/2$403

Last-minute flights from Ontario
Discover last-minute flight deals departing from Ontario. Data was last updated 21 February 2025 and is based on user searches.

Tue 25/206:00ONT - JFK

1 stop10h 29mAlaska Airlines

Thu 13/316:00JFK - ONT

1 stop10h 24mAlaska Airlines

Deal found 20/2$632

Wed 26/205:05ONT - DTW

1 stop14h 04mUnited Airlines

Wed 5/316:37DTW - ONT

1 stop8h 22mUnited Airlines

Deal found 19/2$807

Thu 27/206:00ONT - PDX

1 stop6h 32mUnited Airlines

Sat 1/309:55PDX - ONT

1 stop4h 35mUnited Airlines

Deal found 20/2$514

Thu 27/210:45ONT - LAS

2 stops5h 20mSouthwest

Fri 7/318:25LAS - ONT

1 stop3h 25mSouthwest

Deal found 20/2$539

Thu 27/211:45ONT - PDX

Nonstop2h 33mAlaska Airlines

Mon 10/314:45PDX - ONT

Nonstop2h 14mAlaska Airlines

Deal found 20/2$575

Thu 27/216:05ONT - PDX

1 stop7h 53mDelta

Sat 8/313:36PDX - ONT

2 stops9h 50mDelta

Deal found 20/2$745

Fri 28/214:43ONT - JFK

1 stop12h 47mFrontier

Mon 10/307:59JFK - ONT

1 stop10h 05mFrontier

Deal found 20/2$513

Fri 28/200:59ONT - LAS

1 stop7h 15mFrontier

Sun 2/305:30LAS - ONT

1 stop4h 04mFrontier

Deal found 19/2$774

Sat 1/306:00ONT - LAS

2 stops14h 16mUnited Airlines

Tue 4/317:18LAS - ONT

1 stop21h 11mUnited Airlines

Deal found 20/2$862

Sat 1/306:00ONT - DTW

1 stop30h 53mAlaska Airlines

Mon 24/317:10DTW - ONT

1 stop9h 49mAlaska Airlines

Deal found 20/2$873

Sun 2/306:20ONT - PDX

1 stop3h 45mSouthwest

Wed 5/313:35PDX - ONT

1 stop6h 45mSouthwest

Deal found 20/2$513

Sun 2/313:10ONT - JFK

1 stop8h 32mDelta

Fri 7/315:59JFK - ONT

1 stop9h 53mDelta

Deal found 19/2$648

One-way flights from Ontario
Search for one-way flight options from Ontario. Find affordable one-way fares based on user searches. Data last updated 21 February 2025.

Sun 8/606:00ONT - PDX

1 stop6h 33mUnited Airlines

Deal found 20/2$235

Tue 24/608:30ONT - LAS

2 stops5h 40mSouthwest

Deal found 20/2$235

Wed 19/317:30ONT - LAS

1 stop20h 38mDelta

Deal found 20/2$238

Wed 30/422:40ONT - JFK

Nonstop5h 20mJetBlue

Deal found 20/2$241

Tue 22/406:00ONT - LAS

2 stops17h 25mAlaska Airlines

Deal found 20/2$243

Fri 25/418:24ONT - PDX

1 stop12h 01mAlaska Airlines

Deal found 20/2$246

Fri 11/412:42ONT - JFK

1 stop9h 24mDelta

Deal found 20/2$265

Sun 18/506:00ONT - PDX

1 stop6h 31mDelta

Deal found 19/2$274

Tue 1/413:30ONT - DTW

1 stop6h 47mDelta

Deal found 20/2$278

Sun 2/306:20ONT - PDX

1 stop3h 45mSouthwest

Deal found 20/2$281

Mon 7/418:39ONT - DTW

2 stops12h 13mUnited Airlines

Deal found 20/2$285

Sun 23/306:00ONT - DTW

1 stop31h 04mAlaska Airlines

Deal found 20/2$293

International flights from Ontario
Find cheap international flights from Ontario based on historic user searches and pricing. Information updated on 21 February 2025.

Thu 8/515:10ONT - AKL

1 stop21h 00mUnited Airlines

Thu 15/513:50AKL - ONT

1 stop19h 35mUnited Airlines

Deal found 20/2$981

Wed 23/405:45ONT - DEL

2 stops31h 40mDelta

Tue 29/400:50DEL - ONT

2 stops34h 22mDelta

Deal found 20/2$1,217

Sun 2/306:00ONT - SGN

2 stops26h 20mDelta

Tue 1/423:45SGN - ONT

2 stops36h 37mDelta

Deal found 20/2$1,262

Sun 30/300:10ONT - MNL

1 stop18h 25mChina Airlines

Tue 1/416:50MNL - ONT

1 stop16h 10mChina Airlines

Deal found 19/2$1,268

Tue 5/806:00ONT - SGN

2 stops27h 45mUnited Airlines

Wed 10/922:45SGN - ONT

2 stops38h 08mUnited Airlines

Deal found 20/2$1,282

Wed 5/322:45ONT - SGN

1 stop27h 05mChina Airlines

Wed 2/410:50SGN - ONT

1 stop21h 10mChina Airlines

Deal found 20/2$1,333

Sun 9/305:05ONT - MNL

2 stops34h 45mUnited Airlines

Mon 7/408:40MNL - ONT

1 stop26h 41mUnited Airlines

Deal found 20/2$1,347

Mon 17/305:05ONT - MNL

2 stops34h 45mMultiple Airlines

Wed 2/409:10MNL - ONT

2 stops26h 11mMultiple Airlines

Deal found 20/2$1,380

Mon 18/823:45ONT - SGN

1 stop20h 30mSTARLUX Airlines

Wed 27/811:30SGN - ONT

1 stop20h 10mSTARLUX Airlines

Deal found 20/2$1,430

Mon 21/405:45ONT - MNL

2 stops25h 20mKorean Air

Wed 11/623:30MNL - ONT

2 stops32h 52mKorean Air

Deal found 20/2$1,439

Mon 3/306:00ONT - DPS

2 stops25h 55mDelta

Tue 1/423:45DPS - ONT

2 stops37h 37mDelta

Deal found 20/2$1,497

Mon 3/306:00ONT - SGN

2 stops39h 50mMultiple Airlines

Thu 3/407:35SGN - ONT

2 stops23h 08mMultiple Airlines

Deal found 20/2$1,504

Find flights from Ontario within your budget

Fly to

Route

Depart

Return

Price

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Fri 14/3

07:00-09:26

Nonstop2h 26m

Portland

Mon 17/3

17:15-23:24

1 stop6h 09m

$293

OntarioLas Vegas

ONT - LAS

ONTLAS

Ontario

Wed 23/4

11:00-16:15

2 stops5h 15m

Las Vegas Harry Reid Intl

Sun 27/4

07:30-08:30

Nonstop1h 00m

$296

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Thu 3/4

16:40-00:05

1 stop7h 25m

Portland

Tue 8/4

13:40-20:10

2 stops6h 30m

$301

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Thu 13/3

13:30-18:06

1 stop4h 36m

Portland

Mon 17/3

19:05-23:56

1 stop4h 51m

$307

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Mon 3/3

14:43-06:30

1 stop12h 47m

New York John F Kennedy Intl

Tue 11/3

07:59-15:04

1 stop10h 05m

$331

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Wed 28/5

06:00-12:33

1 stop6h 33m

Portland

Sun 1/6

05:30-12:14

1 stop6h 44m

$365

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Tue 1/4

07:00-09:24

Nonstop2h 24m

Portland

Tue 15/4

21:41-23:59

Nonstop2h 18m

$379

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Fri 2/5

22:40-07:00

Nonstop5h 20m

New York John F Kennedy Intl

Sun 4/5

18:10-21:22

Nonstop6h 12m

$403

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Wed 12/3

06:00-15:53

1 stop30h 53m

Detroit Metropolitan Wayne County

Mon 17/3

16:49-23:24

1 stop9h 35m

$411

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Mon 14/4

06:55-15:00

1 stop29h 05m

New York John F Kennedy Intl

Thu 17/4

18:46-09:28

1 stop17h 42m

$434

Flights are sorted by cheapest return flights first.

Deals found on 20/2

Showing 1-10 of 60 results

...

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 $771). Flying from Ontario in December will prove the most costly (average of $1,381). 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?

Ontario offers frequent flights to Dallas (96 flights per day), San Francisco (68 flights per day) and Seattle (60 flights per day).

Denver Intl

From $68

What is the cheapest place to fly to from Ontario?

The cheapest city to fly to from Ontario is Denver Intl, with prices starting at $106. Explore other affordable destinations below.

Denver Intl

From $68

Airline reviews for flights from Ontario

China Airlines

8.2

Very Good

727 reviews

Check prices

Reviews

1 / 20

6.0

Good

Alex,Dec 2024

SYD - TPE

For the money it’s good value. Seat space rather small

China Airlines

8.2

Very Good

727 reviews

China Airlines

8.2

Very Good

727 reviews

Check prices

Reviews

1 / 20

6.0

Good

Alex,Dec 2024

SYD - TPE

For the money it’s good value. Seat space rather small

Alaska Airlines

8.0

Very Good

9,697 reviews

China Airlines

8.2

Very Good

727 reviews

Check prices

Reviews

1 / 20

6.0

Good

Alex,Dec 2024

SYD - TPE

For the money it’s good value. Seat space rather small

Delta

8.0

Very Good

8,213 reviews

China Airlines

8.2

Very Good

727 reviews

Check prices

Reviews

1 / 20

6.0

Good

Alex,Dec 2024

SYD - TPE

For the money it’s good value. Seat space rather small

Hawaiian Airlines

7.9

Good

2,316 reviews

China Airlines

8.2

Very Good

727 reviews

Check prices

Reviews

1 / 20

6.0

Good

Alex,Dec 2024

SYD - TPE

For the money it’s good value. Seat space rather small

Qatar Airways

7.4

Good

3,609 reviews

China Airlines

8.2

Very Good

727 reviews

Check prices

Reviews

1 / 20

6.0

Good

Alex,Dec 2024

SYD - TPE

For the money it’s good value. Seat space rather small

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Related info for your journey

What are the most popular destinations to fly to from Ontario?
For the current month, the most popular flights from Ontario are Guadalajara, Dallas/Fort Worth Airport, Denver. Denver, Dallas/Fort Worth Airport, Guadalajara are the most popular locations from Ontario year round.
What is the cheapest flight from Ontario to anywhere?
Users have flown out of Ontario for as low as $106 to Denver (prices may vary depending on the airline and departure time). On average, users have booked flights for $113 to fly from Ontario.
What is the cheapest first class flight from Ontario?
If you’re looking to fly first-class from Ontario to anywhere, put Denver on your list as prices start at $1,933 for this destination.
What is the cheapest month to fly from Ontario?
Currently, the cheapest month for flights from Ontario is April. The most expensive month for flights is December. The cheapest prices are shown above but prices will vary according to departure times, airlines, class and how early you book.
Where are the cheapest places to fly to from Ontario?
View the cheapest flight destinations from Ontario:
Fly from Ontario to Sydney from $1,405 round trip
How does Cheapflights help users find flights from Ontario?
Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Ontario. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.
Why should you use Cheapflights to find cheap flight tickets from Ontario?
It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Ontario.
Can Cheapflights find flights from Ontario with no change fees?
Certainly. Search results for flights from Ontario shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.
Can Cheapflights notify me if prices for flights from Ontario become cheaper?
Yes, Cheapflights has a feature called Price Alerts, which offers users the ability to be notified when flight prices change. Track prices for your flight from Ontario today and book when you’re ready!

See more FAQs

Fly with Cheapflights

How does Cheapflights help users find flights from Ontario?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Ontario. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Ontario.

Can Cheapflights find flights from Ontario with no change fees?

Certainly. Search results for flights from Ontario shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, Cheapflights has a feature called Price Alerts, which offers users the ability to be notified when flight prices change. Track prices for your flight from Ontario today and book when you’re ready!

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$89+ 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 24/4. 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.

What to know about flights from Ontario

Cheapest one-way flight

Cheapest round-trip flight

Cheapest airline

Most popular destination

Good one-way deal

Find flights from Ontario

Cheapest flights from OntarioExplore the most affordable flight options available from Ontario. Find the lowest fares based on data from user searches, with prices last updated on 21 February 2025.

Explore the most affordable flight options available from Ontario. Find the lowest fares based on data from user searches, with prices last updated on 21 February 2025.

Find flights from Ontario within your budget

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.

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?

What are popular destinations to fly to from Ontario?

What is the cheapest place to fly to from Ontario?

Airline reviews for flights from Ontario

Browse thousands of different options on Cheapflights for your next trip

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Related info for your journey

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

What is the cheapest flight from Ontario to anywhere?

What is the cheapest first class flight from Ontario?

What is the cheapest month to fly from Ontario?

Where are the cheapest places to fly to from Ontario?

How does Cheapflights help users find flights from Ontario?

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

Can Cheapflights find flights from Ontario with no change fees?

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

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?

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

Can Cheapflights find flights from Ontario with no change fees?

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

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Book with Flexibility

Travel Smart

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 21 February 2025.