Find flights
Deals

£63+ 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 1/7. 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 — LHR
24 May — 31 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 24 April 2026. In the last 7 days, Cheapflights users made a total of 858,174 searches

Fly to

Route

Depart

Return

Price

Cheapest return flight

OntarioNashville

ONT - BNA

ONTBNA

Ontario

Sat 12/9

05:00-15:53

2 stops8h 53m

Nashville Intl

Thu 17/9

15:08-21:59

1 stop8h 51m

£225

OntarioNashville

ONT - BNA

ONTBNA

Ontario

Wed 16/9

09:55-18:28

1 stop6h 33m

Nashville Intl

Tue 22/9

06:25-11:04

1 stop6h 39m

£237

OntarioNashville

ONT - BNA

ONTBNA

Ontario

Fri 4/9

13:00-22:21

1 stop7h 21m

Nashville Intl

Tue 8/9

17:10-22:44

1 stop7h 34m

£259

OntarioNashville

ONT - BNA

ONTBNA

Ontario

Tue 12/5

18:59-10:48

2 stops13h 49m

Nashville Intl

Fri 15/5

16:34-21:58

1 stop7h 24m

£274
Fastest return journey

OntarioNashville

ONT - BNA

ONTBNA

Ontario

Sun 31/5

18:30-01:55

1 stop5h 25m

Nashville Intl

Sun 7/6

05:15-09:20

1 stop6h 05m

£280

OntarioNashville

ONT - BNA

ONTBNA

Ontario

Wed 24/6

16:35-23:50

1 stop5h 15m

Nashville Intl

Tue 30/6

17:45-23:00

2 stops7h 15m

£283

OntarioNashville

ONT - BNA

ONTBNA

Ontario

Thu 30/7

13:00-23:05

1 stop8h 05m

Nashville Intl

Mon 3/8

19:59-10:38

2 stops16h 39m

£287

OntarioNashville

ONT - BNA

ONTBNA

Ontario

Mon 19/10

11:55-23:58

1 stop10h 03m

Nashville Intl

Sun 25/10

10:55-18:18

1 stop9h 23m

£311

OntarioNashville

ONT - BNA

ONTBNA

Ontario

Fri 10/7

17:26-05:40

1 stop10h 14m

Nashville Intl

Tue 14/7

07:02-16:30

1 stop11h 28m

£317

OntarioNashville

ONT - BNA

ONTBNA

Ontario

Fri 17/7

09:40-18:03

1 stop6h 23m

Nashville Intl

Fri 24/7

05:10-10:38

1 stop7h 28m

£319

Flights are sorted by cheapest return flights first.

Deals found on 23/4

Showing 1-10 of 60 resultsSorted by cheapest first
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, November is the cheapest month in which you can book a flight from Ontario (average of £463). Flying from Ontario in June will prove the most costly (average of £1,023). 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?

If you’re flying from Ontario, these routes are more frequently taken by airlines Dallas (108 flights per day), Atlanta (105 flights per day) and Seattle (95 flights per day).

Dallas/Fort Worth
Dallas/Fort Worth
From £221
Portland
Portland
From £64
Phoenix Sky Harbor Intl
Phoenix Sky Harbor Intl
From £471
Honolulu
Honolulu
From £144

What is the cheapest place to fly to from Ontario?

The cheapest city to fly to from Ontario is Portland, with prices starting at £64. Explore other affordable destinations below.

Portland
Portland
From £64
Honolulu
Honolulu
From £144
Dallas/Fort Worth
Dallas/Fort Worth
From £221
Charlotte Douglas
Charlotte Douglas
From £242

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.

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 24 April 2026.

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

    This month, the top selected destinations from Ontario are Las Vegas, Dallas/Fort Worth Airport, Denver. Throughout the year, Las Vegas, Dallas/Fort Worth Airport, Denver are some of the top choices made by users flying from Ontario.

  • What is the cheapest flight from Ontario to anywhere?

    Users have flown out of Ontario for as low as £64 to Portland (prices may vary depending on the airline and departure time). On average, users have booked flights for £310 to fly from Ontario.

  • What is the cheapest month to fly from Ontario?

    At the present moment the cheapest month to fly from Ontario is currently November; with June being the most expensive. Prices will vary depending on multiple factors such as booking in advance, airline and departure airports and times.

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

    Check out the cheapest flights from Ontario to embark to:
    Travel from Ontario to London from £664 round trip

  • How does Cheapflights help users find flights from Ontario?

    Deals for flights from Ontario are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose to your preference, such as price, airport, cabin class, and plenty of other options.

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

    It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Ontario.

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

    Yes! Cheapflights helps users easily find flights from Ontario with no change fees.

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

    Yes, Cheapflights has a feature called Price Alerts, which offers users the ability to be notified when flight prices change. Track prices for your flight from Ontario today and book when you’re ready!

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?

Deals for flights from Ontario are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose to your preference, such as price, airport, cabin class, and plenty of other options.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Ontario.

Can Cheapflights find flights from Ontario with no change fees?

Yes! Cheapflights helps users easily find flights from Ontario with no change fees.

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

Yes, Cheapflights has a feature called Price Alerts, which offers users the ability to be notified when flight prices change. Track prices for your flight from Ontario today and book when you’re ready!

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.