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₹ 4,881+ 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 29/7. 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
8 Jul — 15 Jul1
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 July 2025.

Cheapest one-way flight

₹ 1,508

Cheapest round-trip flight

₹ 16,738

Cheapest airline

Frontier

Most popular destination

London Heathrow (LHR)

Good round-trip deal

₹ 15,228 or less

Good one-way deal

₹ 4,187 or less
The cheapest one-way flight from Ontario is currently to Las Vegas Harry Reid Intl.
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The cheapest round-trip flight from Ontario is currently to New York John F Kennedy Intl.
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On average, Frontier currently has the cheapest one-way flight from Ontario (avg. price of ₹ 6,001).
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London Heathrow (LHR) is currently the most popular flight destination from Ontario (average return price of ₹ 39,511).
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Price to beat on a round-trip flight from Ontario.
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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 July 2025.

Wed 23/714:14ONT - SEA
Nonstop2h 46mDelta
Tue 29/710:43SEA - ONT
Nonstop2h 51mDelta
Deal found 2/7₹ 13,444
Tue 12/810:03ONT - SEA
1 stop4h 22mAlaska Airlines
Tue 19/805:25SEA - ONT
1 stop3h 58mAlaska Airlines
Deal found 2/7₹ 15,071
Mon 18/805:20ONT - SEA
2 stops7h 15mSouthwest
Wed 20/814:25SEA - ONT
1 stop5h 55mSouthwest
Deal found 1/7₹ 16,441
Mon 4/818:39ONT - SEA
1 stop6h 20mUnited Airlines
Wed 6/805:10SEA - ONT
1 stop7h 04mUnited Airlines
Deal found 1/7₹ 17,811
Wed 6/813:34ONT - EWR
1 stop8h 26mUnited Airlines
Tue 12/806:30EWR - ONT
1 stop9h 02mUnited Airlines
Deal found 1/7₹ 22,864
Tue 21/1012:00ONT - EWR
1 stop8h 00mDelta
Wed 29/1007:00EWR - ONT
1 stop8h 31mDelta
Deal found 3/7₹ 23,720
Wed 12/1106:00ONT - EWR
1 stop9h 29mAlaska Airlines
Sun 16/1107:30EWR - ONT
1 stop10h 44mAlaska Airlines
Deal found 1/7₹ 24,919
Wed 27/805:10ONT - DEL
2 stops27h 50mUnited Airlines
Wed 24/923:35DEL - ONT
2 stops25h 46mUnited Airlines
Deal found 2/7₹ 56,260
Sat 20/906:00ONT - BOM
2 stops38h 20mDelta
Tue 23/901:20BOM - ONT
2 stops33h 50mDelta
Deal found 2/7₹ 61,741
Fri 26/922:00ONT - BLR
2 stops37h 15mDelta
Fri 10/1001:35BLR - ONT
2 stops33h 41mDelta
Deal found 2/7₹ 62,426
Fri 29/809:50ONT - DEL
2 stops24h 30mDelta
Tue 30/900:50DEL - ONT
2 stops34h 03mDelta
Deal found 1/7₹ 66,707
Fri 29/806:17ONT - DEL
2 stops26h 13mAmerican Airlines
Wed 1/1023:30DEL - ONT
2 stops31h 12mAmerican Airlines
Deal found 1/7₹ 69,191

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 July 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

Fri 15/8

14:21-16:58

Nonstop2h 37m

Seattle/Tacoma Intl

Sun 17/8

21:30-00:15

Nonstop2h 45m

₹ 16,870

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Thu 7/8

06:00-11:35

1 stop5h 35m

Seattle/Tacoma Intl

Thu 14/8

05:00-12:40

2 stops7h 40m

₹ 17,298

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Mon 4/8

18:39-00:59

1 stop6h 20m

Seattle/Tacoma Intl

Wed 6/8

05:10-12:14

1 stop7h 04m

₹ 17,811

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Fri 18/7

06:25-09:13

Nonstop2h 48m

Seattle/Tacoma Intl

Tue 29/7

10:43-13:34

Nonstop2h 51m

₹ 18,582

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Wed 23/7

12:00-14:38

Nonstop2h 38m

Seattle/Tacoma Intl

Sun 27/7

21:30-00:15

Nonstop2h 45m

₹ 20,723

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Wed 6/8

13:34-01:00

1 stop8h 26m

Newark

Tue 12/8

06:30-12:32

1 stop9h 02m

₹ 22,864

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Tue 21/10

12:00-23:00

1 stop8h 00m

Newark

Wed 29/10

07:00-12:31

1 stop8h 31m

₹ 23,720

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Wed 12/11

06:00-18:29

1 stop9h 29m

Newark

Sun 16/11

07:30-15:14

1 stop10h 44m

₹ 24,919

OntarioNew Delhi

ONT - DEL

ONTDEL

Ontario

Wed 27/8

05:10-21:30

2 stops27h 50m

New Delhi Indira Gandhi Intl

Wed 24/9

23:35-12:51

2 stops25h 46m

₹ 56,260

OntarioMumbai

ONT - BOM

ONTBOM

Ontario

Sat 20/9

06:00-08:50

2 stops38h 20m

Mumbai Chhatrapati Shivaji Intl

Tue 23/9

01:20-22:40

2 stops33h 50m

₹ 61,741

Flights are sorted by cheapest return flights first.

Deals found on 2/7

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, December is the cheapest month in which you can book a flight from Ontario (average of ₹ 62,597). Flying from Ontario in March will prove the most costly (average of ₹ 69,362). 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 (126 flights per day), Denver (53 flights per day) and Dallas (52 flights per day).

Houston Hobby
Houston Hobby
From ₹ 49
Atlanta Hartsfield-Jackson
Atlanta Hartsfield-Jackson
From ₹ 401
Seattle/Tacoma Intl
Seattle/Tacoma Intl
From ₹ 124
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 ₹ 4,187. Explore other affordable destinations below.

Houston Hobby
Houston Hobby
From ₹ 49
Seattle/Tacoma Intl
Seattle/Tacoma Intl
From ₹ 124
Phoenix Sky Harbor Intl
Phoenix Sky Harbor Intl
From ₹ 183
Dallas/Fort Worth
Dallas/Fort Worth
From ₹ 234

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.
See what other customers who have flown with Delta, KLM, andQatar Airways from Ontario have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,983 reviews
Check prices

Crew

8.5

Boarding

8.2

Overall

8.0

Comfort

7.9

Food

7.3

Entertainment

7.9

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
7,983 reviews
Delta
8.0
Very Good
7,983 reviews
Check prices

Crew

8.5

Boarding

8.2

Overall

8.0

Comfort

7.9

Food

7.3

Entertainment

7.9

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
1,366 reviews
Delta
8.0
Very Good
7,983 reviews
Check prices

Crew

8.5

Boarding

8.2

Overall

8.0

Comfort

7.9

Food

7.3

Entertainment

7.9

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
3,593 reviews
Delta
8.0
Very Good
7,983 reviews
Check prices

Crew

8.5

Boarding

8.2

Overall

8.0

Comfort

7.9

Food

7.3

Entertainment

7.9

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
1,224 reviews
Delta
8.0
Very Good
7,983 reviews
Check prices

Crew

8.5

Boarding

8.2

Overall

8.0

Comfort

7.9

Food

7.3

Entertainment

7.9

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
8,861 reviews
Delta
8.0
Very Good
7,983 reviews
Check prices

Crew

8.5

Boarding

8.2

Overall

8.0

Comfort

7.9

Food

7.3

Entertainment

7.9

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.

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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 July 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 ₹ 4,187 to Houston George Bush Intcntl Airport (prices may vary depending on the airline and departure time). On average, users have booked flights for ₹ 22,647 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 ₹ 176,961
    Fly from Ontario to Atlanta starting at ₹ 178,484

  • What is the cheapest month to fly from Ontario?

    December is currently the cheapest month to fly from Ontario. At this moment in time March 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 ₹ 56,260 round trip
    Fly from Ontario to Mumbai from ₹ 62,255 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.

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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.

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