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₹ 10,076+ 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 9/5. 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
9 May — 16 May1
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 9 April 2026. In the last 7 days, Cheapflights users made a total of 454,620 searches

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Tue 28/4

06:00-08:50

Nonstop2h 50m

Seattle/Tacoma Intl

Sat 9/5

07:05-09:45

Nonstop2h 40m

₹ 16,361

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Fri 15/5

06:45-09:49

Nonstop3h 04m

Seattle/Tacoma Intl

Tue 2/6

19:50-22:32

Nonstop2h 42m

₹ 17,286

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Tue 28/4

17:20-22:55

1 stop5h 35m

Seattle/Tacoma Intl

Sat 9/5

10:50-15:35

1 stop4h 45m

₹ 18,210

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Tue 5/5

07:00-10:07

Nonstop3h 07m

Seattle/Tacoma Intl

Tue 12/5

08:25-11:12

Nonstop2h 47m

₹ 18,210

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Tue 19/5

06:45-09:49

Nonstop3h 04m

Seattle/Tacoma Intl

Fri 29/5

08:25-11:12

Nonstop2h 47m

₹ 19,135

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Sat 9/5

11:52-14:55

Nonstop3h 03m

Seattle/Tacoma Intl

Mon 11/5

14:30-17:10

Nonstop2h 40m

₹ 21,168

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Sat 9/5

12:48-21:48

1 stop9h 00m

Seattle/Tacoma Intl

Tue 19/5

21:22-23:58

Nonstop2h 36m

₹ 21,908

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Mon 4/5

15:00-23:30

1 stop8h 30m

Seattle/Tacoma Intl

Mon 11/5

07:20-15:50

2 stops8h 30m

₹ 22,370

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Fri 15/5

19:48-07:15

1 stop11h 27m

Seattle/Tacoma Intl

Tue 2/6

16:10-18:47

Nonstop2h 37m

₹ 23,109

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Wed 6/5

15:24-18:15

Nonstop2h 51m

Seattle/Tacoma Intl

Sun 10/5

18:30-23:48

1 stop5h 18m

₹ 23,756

Flights are sorted by cheapest return flights first.

Deals found on 8/4

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.

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 ₹ 57,589). Flying from Ontario in July will prove the most costly (average of ₹ 70,160). 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 (100 flights per day), Dallas (83 flights per day) and Atlanta (66 flights per day).

Seattle/Tacoma Intl
Seattle/Tacoma Intl
From ₹ 131,366
Portland
Portland
From ₹ 20,584

What is the cheapest place to fly to from Ontario?

The cheapest city to fly to from Ontario is Portland, with prices starting at ₹ 20,584. Explore other affordable destinations below.

Portland
Portland
From ₹ 20,584
Seattle/Tacoma Intl
Seattle/Tacoma Intl
From ₹ 131,366

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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 9 April 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, Denver. Las Vegas, Dallas/Fort Worth Airport, Denver 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 ₹ 20,584 to Portland (prices may vary depending on the airline and departure time). On average, users have booked flights for ₹ 79,280 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 ₹ 191,025
    Fly from Ontario to Atlanta starting at ₹ 192,668

  • 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 Mumbai from ₹ 83,286 round trip
    Fly from Ontario to New Delhi from ₹ 86,614 round trip
    Fly from Ontario to Bengaluru from ₹ 96,042 round trip
    Fly from Ontario to Hyderabad from ₹ 120,538 round trip
    Fly from Ontario to Chennai from ₹ 130,522 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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