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₹ 11,373+ Cheap flights from Ontario

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/8. 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
26 Jun — 3 Jul1
1 adult
1 adult, Economy, 0 bags

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 27 May 2026. In the last 7 days, Cheapflights users made a total of 454,620 searches

Fly to

Route

Depart

Return

Price

Cheapest return flight

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Sat 27/6

17:59-20:50

Nonstop2h 51m

Seattle/Tacoma Intl

Tue 7/7

14:30-17:21

Nonstop2h 51m

₹ 20,739

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Thu 13/8

11:55-14:49

Nonstop2h 54m

Seattle/Tacoma Intl

Sun 16/8

19:50-22:45

Nonstop2h 55m

₹ 20,739

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Fri 14/8

16:18-21:21

1 stop5h 03m

Seattle/Tacoma Intl

Sun 16/8

08:30-11:11

Nonstop2h 41m

₹ 21,695

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Thu 23/7

18:30-23:55

1 stop5h 25m

Seattle/Tacoma Intl

Mon 27/7

05:00-10:30

1 stop5h 30m

₹ 22,651

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Thu 17/9

12:12-14:55

Nonstop2h 43m

Seattle/Tacoma Intl

Sat 26/9

11:29-14:16

Nonstop2h 47m

₹ 22,651

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Wed 26/8

06:20-09:17

Nonstop2h 57m

Seattle/Tacoma Intl

Sun 13/9

19:55-22:40

Nonstop2h 45m

₹ 22,651

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Tue 4/8

13:10-20:15

2 stops7h 05m

Seattle/Tacoma Intl

Sun 9/8

07:10-13:10

1 stop6h 00m

₹ 25,996

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Sat 8/8

16:18-21:21

1 stop5h 03m

Seattle/Tacoma Intl

Sun 16/8

07:07-15:38

1 stop8h 31m

₹ 26,474
Fastest return journey

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Sat 11/7

21:20-23:59

Nonstop2h 39m

Seattle/Tacoma Intl

Sun 12/7

20:33-23:11

Nonstop2h 38m

₹ 26,665

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Mon 23/11

06:00-08:44

Nonstop2h 44m

Seattle/Tacoma Intl

Mon 30/11

19:55-22:39

Nonstop2h 44m

₹ 31,252

Flights are sorted by cheapest return flights first.

Deals found on 25/5

Showing 1-10 of 60 resultsSorted by cheapest first
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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.
No data available for this route at this time. Please check back soon.

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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 27 May 2026.

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

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

  • 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 ₹ 197,504
    Fly from Ontario to Atlanta starting at ₹ 199,204

  • 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 ₹ 91,750 round trip
    Fly from Ontario to Mumbai from ₹ 103,028 round trip
    Fly from Ontario to Bengaluru from ₹ 121,091 round trip
    Fly from Ontario to Hyderabad from ₹ 121,378 round trip
    Fly from Ontario to Chennai from ₹ 131,508 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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