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₹ 7,162+ 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 16/4. 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.
ONT — MCO
12 Mar — 19 Mar1
1 adult
1 adult, Economy, 0 bags

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 10 February 2026.

Cheapest one-way flight

₹ 5,303

Cheapest round-trip flight

₹ 58,104

Cheapest airline

American Airlines

Most popular destination

San Francisco (SFO)

Good round-trip deal

₹ 9,551 or less
The cheapest one-way flight from Ontario is currently to San Francisco.
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The cheapest round-trip flight from Ontario is currently to London Heathrow.
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On average, American Airlines currently has the cheapest one-way flight from Ontario (avg. price of ₹ 8,936).
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San Francisco (SFO) is currently the most popular flight destination from Ontario (average return price of ₹ 7,742).
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Price to beat on a round-trip flight from Ontario.
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Find flights from Ontario

Enter your travel dates to find the best prices.

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 10 February 2026.

Tue 14/414:20
ONT
-
SEA
Nonstop3h 04m
Delta
Wed 22/419:50
SEA
-
ONT
Nonstop2h 47m
Delta
Deal found 9/2₹ 14,233
Wed 15/417:55
ONT
-
SEA
Nonstop3h 00m
Delta
Sun 19/408:25
SEA
-
ONT
Nonstop2h 48m
Delta
Deal found 9/2₹ 15,139
Thu 5/312:02
ONT
-
SEA
Nonstop2h 50m
Alaska Airlines
Sun 8/308:30
SEA
-
ONT
Nonstop2h 38m
Alaska Airlines
Deal found 8/2₹ 16,046
Sat 7/318:10
ONT
-
SEA
1 stop7h 15m
Southwest
Tue 10/309:50
SEA
-
ONT
2 stops6h 40m
Southwest
Deal found 8/2₹ 16,499
Fri 6/315:30
ONT
-
SEA
Nonstop3h 03m
Delta
Sun 8/308:30
SEA
-
ONT
Nonstop2h 47m
Delta
Deal found 10/2₹ 16,953
Sat 14/313:40
ONT
-
SEA
1 stop7h 18m
United Airlines
Wed 18/307:15
SEA
-
ONT
1 stop5h 03m
United Airlines
Deal found 8/2₹ 17,224
Wed 4/319:17
ONT
-
SEA
1 stop24h 51m
Frontier
Sun 8/312:24
SEA
-
ONT
1 stop11h 35m
Frontier
Deal found 10/2₹ 17,315
Fri 6/318:30
ONT
-
SEA
1 stop5h 20m
Southwest
Tue 10/309:50
SEA
-
ONT
2 stops6h 40m
Southwest
Deal found 8/2₹ 17,406
Sat 25/413:27
ONT
-
SEA
1 stop5h 08m
United Airlines
Sat 2/505:05
SEA
-
ONT
2 stops12h 47m
United Airlines
Deal found 9/2₹ 17,678
Sun 1/322:14
ONT
-
SEA
1 stop10h 37m
Frontier
Sun 8/312:24
SEA
-
ONT
1 stop11h 35m
Frontier
Deal found 10/2₹ 17,768
Fri 6/316:02
ONT
-
SEA
Nonstop2h 50m
Alaska Airlines
Sun 8/308:30
SEA
-
ONT
Nonstop2h 38m
Alaska Airlines
Deal found 9/2₹ 17,859
Sat 14/312:02
ONT
-
SEA
Nonstop2h 50m
Alaska Airlines
Mon 16/317:10
SEA
-
ONT
1 stop6h 42m
Alaska Airlines
Deal found 10/2₹ 17,950

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

Fly to

Orlando

Route

Depart

Return

Price

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Tue 21/4

06:00-08:54

Nonstop2h 54m

Seattle/Tacoma Intl

Sat 25/4

07:05-09:45

Nonstop2h 40m

₹ 14,233

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Fri 13/3

17:53-20:50

Nonstop2h 57m

Seattle/Tacoma Intl

Sat 14/3

08:30-11:17

Nonstop2h 47m

₹ 15,139

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Tue 3/3

06:14-09:09

Nonstop2h 55m

Seattle/Tacoma Intl

Sun 8/3

08:30-11:08

Nonstop2h 38m

₹ 15,139

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Sat 7/3

16:02-18:52

Nonstop2h 50m

Seattle/Tacoma Intl

Sun 8/3

08:30-11:08

Nonstop2h 38m

₹ 15,139

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Wed 4/3

16:02-18:52

Nonstop2h 50m

Seattle/Tacoma Intl

Sun 8/3

08:30-11:08

Nonstop2h 38m

₹ 15,139

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Fri 6/3

15:30-18:33

Nonstop3h 03m

Seattle/Tacoma Intl

Fri 13/3

08:30-11:17

Nonstop2h 47m

₹ 16,046

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Thu 5/3

07:30-10:34

Nonstop3h 04m

Seattle/Tacoma Intl

Sun 8/3

19:50-22:33

Nonstop2h 43m

₹ 16,046

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Fri 1/5

15:26-18:17

Nonstop2h 51m

Seattle/Tacoma Intl

Sun 3/5

07:05-09:45

Nonstop2h 40m

₹ 16,046

OntarioOrlando

ONT - MCO

ONTMCO

Ontario

Mon 2/3

14:06-00:44

1 stop7h 38m

Orlando

Sun 8/3

09:59-08:06

1 stop25h 07m

₹ 22,573

OntarioOrlando

ONT - MCO

ONTMCO

Ontario

Wed 1/4

13:20-23:35

2 stops7h 15m

Orlando

Tue 7/4

16:25-21:30

2 stops8h 05m

₹ 29,644

Flights are sorted by cheapest return flights first.

Deals found on 9/2

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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.

When is the best time to book a flight from Ontario?

Use this chart to determine the optimal time to book a return flight from Ontario to Orlando. Price data was last updated on 6 February 2026.

Booking 83 days in advance of your planned departure date is, on average, the best time to get cheap flights from Ontario. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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 ₹ 6,255). Flying from Ontario in February will prove the most costly (average of ₹ 16,046). 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 (83 flights per day), Seattle (67 flights per day) and Phoenix (65 flights per day).

Seattle/Tacoma Intl
Seattle/Tacoma Intl
From ₹ 128,833
Denver Intl
Denver Intl
From ₹ 9,551

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 ₹ 9,551. Explore other affordable destinations below.

Denver Intl
Denver Intl
From ₹ 9,551
Seattle/Tacoma Intl
Seattle/Tacoma Intl
From ₹ 128,833

Browse thousands of different options on Cheapflights for your next trip

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Direct flights from California

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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 10 February 2026.

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

    For the current month, the most popular flights from Ontario are Dallas/Fort Worth Airport, Denver, 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 ₹ 9,551 to Denver (prices may vary depending on the airline and departure time). On average, users have booked flights for ₹ 69,418 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 ₹ 187,342
    Fly from Ontario to Atlanta starting at ₹ 188,954

  • What is the cheapest month to fly from Ontario?

    December is currently the cheapest month to fly from Ontario. At this moment in time February 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 Orlando from ₹ 25,293 round trip
    Fly from Ontario to New Delhi from ₹ 74,791 round trip
    Fly from Ontario to Hyderabad from ₹ 125,376 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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