Find flights
Deals
Airlines

₹ 4,456+ 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 30/7. 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 — DEL
19 Jun — 26 Jun1
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 14 June 2025.

Cheapest one-way flight

₹ 1,509

Cheapest round-trip flight

₹ 49,384

Cheapest airline

Frontier

Most popular destination

London Heathrow (LHR)

Good round-trip deal

₹ 15,703 or less

Good one-way deal

₹ 4,189 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 London Heathrow.
Search Deals
On average, Frontier currently has the cheapest one-way flight from Ontario (avg. price of ₹ 7,335).
Search Deals
London Heathrow (LHR) is currently the most popular flight destination from Ontario (average return price of ₹ 35,226).
Search Deals
Price to beat on a round-trip flight from Ontario.
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 14 June 2025.

Wed 23/706:00ONT - SEA
Nonstop2h 42mAlaska Airlines
Wed 23/710:47SEA - ONT
Nonstop2h 39mAlaska Airlines
Deal found 14/6₹ 14,738
Wed 23/714:14ONT - SEA
Nonstop2h 46mDelta
Wed 30/707:30SEA - ONT
Nonstop2h 55mDelta
Deal found 12/6₹ 15,166
Wed 6/814:10ONT - SEA
1 stop5h 45mSouthwest
Thu 14/805:00SEA - ONT
2 stops7h 40mSouthwest
Deal found 13/6₹ 17,309
Fri 22/818:50ONT - SEA
1 stop4h 09mUnited Airlines
Sun 31/807:00SEA - ONT
1 stop5h 13mUnited Airlines
Deal found 14/6₹ 18,165
Sat 28/618:51ONT - SEA
Nonstop2h 40mHawaiian Airlines
Sat 5/721:30SEA - ONT
Nonstop2h 43mHawaiian Airlines
Deal found 13/6₹ 19,451
Tue 12/807:05ONT - EWR
1 stop7h 55mDelta
Wed 13/812:10EWR - ONT
1 stop10h 01mDelta
Deal found 13/6₹ 23,735
Tue 30/911:39ONT - EWR
1 stop15h 20mAlaska Airlines
Fri 3/1016:00EWR - ONT
1 stop10h 59mAlaska Airlines
Deal found 13/6₹ 24,592
Fri 25/718:28ONT - EWR
1 stop8h 08mUnited Airlines
Tue 29/706:05EWR - ONT
1 stop9h 27mUnited Airlines
Deal found 12/6₹ 26,391
Sat 12/713:19ONT - SEA
1 stop5h 39mMultiple Airlines
Mon 14/721:30SEA - ONT
Nonstop2h 43mMultiple Airlines
Deal found 13/6₹ 39,073
Mon 21/719:05ONT - EWR
1 stop7h 30mAmerican Airlines
Sun 27/705:29EWR - ONT
1 stop7h 32mAmerican Airlines
Deal found 13/6₹ 43,357
Wed 20/806:04ONT - DEL
2 stops26h 56mUnited Airlines
Fri 19/923:35DEL - ONT
2 stops34h 20mUnited Airlines
Deal found 14/6₹ 56,296
Sat 27/906:45ONT - BLR
2 stops56h 20mDelta
Fri 10/1005:40BLR - ONT
2 stops53h 36mDelta
Deal found 13/6₹ 63,151

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 14 June 2025. In the last 7 days, Cheapflights users made a total of 454,620 searches

Fly to

New Delhi

Route

Depart

Return

Price

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Wed 3/9

15:04-17:44

Nonstop2h 40m

Seattle/Tacoma Intl

Tue 9/9

22:45-09:26

2 stops10h 41m

₹ 19,793

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Fri 4/7

11:30-19:55

1 stop8h 25m

Seattle/Tacoma Intl

Tue 8/7

06:15-12:10

1 stop5h 55m

₹ 20,736

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Wed 6/8

18:39-00:59

1 stop6h 20m

Seattle/Tacoma Intl

Sat 9/8

05:10-12:14

1 stop7h 04m

₹ 21,507

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Tue 12/8

07:05-18:00

1 stop7h 55m

Newark

Wed 13/8

12:10-19:11

1 stop10h 01m

₹ 23,735

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Wed 25/6

16:00-18:40

Nonstop2h 40m

Seattle/Tacoma Intl

Sat 5/7

21:30-00:13

Nonstop2h 43m

₹ 24,592

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Tue 30/9

11:39-05:59

1 stop15h 20m

Newark

Fri 3/10

16:00-23:59

1 stop10h 59m

₹ 24,592

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Fri 25/7

18:28-05:36

1 stop8h 08m

Newark

Tue 29/7

06:05-12:32

1 stop9h 27m

₹ 26,391

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Fri 29/8

13:15-19:00

1 stop5h 45m

Seattle/Tacoma Intl

Mon 1/9

05:30-12:14

1 stop6h 44m

₹ 28,019

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Sat 12/7

13:19-18:58

1 stop5h 39m

Seattle/Tacoma Intl

Mon 14/7

21:30-00:13

Nonstop2h 43m

₹ 39,073

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Mon 21/7

19:05-05:35

1 stop7h 30m

Newark

Sun 27/7

05:29-10:01

1 stop7h 32m

₹ 43,357

Flights are sorted by cheapest return flights first.

Deals found on 13/6

Showing 1-10 of 60 results
1
2
3
...
6

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 ₹ 64,436). Flying from Ontario in July will prove the most costly (average of ₹ 72,662). 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 Seattle (162 flights per day), Dallas (139 flights per day) and Salt Lake City (86 flights per day).

Houston Hobby
Houston Hobby
From ₹ 49
Atlanta Hartsfield-Jackson
Atlanta Hartsfield-Jackson
From ₹ 401
Dallas/Fort Worth
Dallas/Fort Worth
From ₹ 79
Phoenix Sky Harbor Intl
Phoenix Sky Harbor Intl
From ₹ 183

What is the cheapest place to fly to from Ontario?

The cheapest city to fly to from Ontario is Houston Hobby, with prices starting at ₹ 4,189. Explore other affordable destinations below.

Houston Hobby
Houston Hobby
From ₹ 49
Dallas/Fort Worth
Dallas/Fort Worth
From ₹ 79
Phoenix Sky Harbor Intl
Phoenix Sky Harbor Intl
From ₹ 183
Atlanta Hartsfield-Jackson
Atlanta Hartsfield-Jackson
From ₹ 401

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 454,620 searches.
Delta
8.0
Very Good
7,961 reviews
Check prices

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very Good
7,961 reviews
Delta
8.0
Very Good
7,961 reviews
Check prices

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,360 reviews
Delta
8.0
Very Good
7,961 reviews
Check prices

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Qatar Airways
7.4
Good
3,586 reviews
Delta
8.0
Very Good
7,961 reviews
Check prices

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Etihad Airways
7.4
Good
1,212 reviews
Delta
8.0
Very Good
7,961 reviews
Check prices

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,793 reviews
Delta
8.0
Very Good
7,961 reviews
Check prices

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Direct flights from California

Book a direct flight from one of these other cities located in California.
Direct flights from San Francisco
Direct flights from Los Angeles
Direct flights from San Diego
Direct flights from San Jose

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 14 June 2025.

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

    For the current month, the most popular flights from Ontario are Denver, Dallas/Fort Worth Airport, Guadalajara. Dallas/Fort Worth Airport, Denver, 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 ₹ 4,189 to Houston George Bush Intcntl Airport (prices may vary depending on the airline and departure time). On average, users have booked flights for ₹ 21,114 to fly from Ontario.

  • What is the cheapest premium economy flight from Ontario?

    Options for some of the cheapest premium economy flights from Ontario we have found on Cheapflights are as follows:
    Fly from Ontario to Dallas/Fort Worth Airport starting at ₹ 177,073
    Fly from Ontario to Atlanta starting at ₹ 178,596

  • What is the cheapest month to fly from Ontario?

    April is currently the cheapest month to fly from Ontario. At this moment in time July is the most expensive month. These prices are determined by multiple factors and booking in advance can help keep costs down if your schedule is not as flexible.

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

    Here are some of the cheapest flight destinations from Ontario:
    Fly from Ontario to New Delhi from ₹ 56,296 round trip
    Fly from Ontario to Mumbai from ₹ 82,944 round trip
    Fly from Ontario to Bengaluru from ₹ 95,968 round trip

  • How does Cheapflights help users find flights from Ontario?

    900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight from Ontario today with Cheapflights!

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

    Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Ontario for you. Better yet — we are completely free to use.

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

    Yes, we can. To see specific flights from Ontario with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

    Of course! You can now track prices for flights from Ontario and get an alert from Cheapflights when they change. Click the bell icon next to the flight deals above and provide your email address to set up price alerts.

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?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight from Ontario today with Cheapflights!

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Ontario for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Ontario with no change fees?

Yes, we can. To see specific flights from Ontario with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Of course! You can now track prices for flights from Ontario and get an alert from Cheapflights when they change. Click the bell icon next to the flight deals above and provide your email address to set up price alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2025 Cheapflights