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Cheap flights from Ontario to anywhere

Fly from Ontario to anywhere in the world.

ONT — LHR
16 Apr — 23 Apr1
1 adult
Tue 16/4
Tue 23/4

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 11 April 2024.

Cheapest one-way flight

£22

Cheapest round-trip flight

£36

Cheapest airline

American Airlines

Most popular destination

London Heathrow (LHR)
The cheapest one-way flight from Ontario is currently to Las Vegas Harry Reid Intl.
The cheapest round-trip flight from Ontario is currently to San Francisco.
On average, American Airlines currently has the cheapest one-way flight from Ontario.
London Heathrow (LHR) is currently the most popular flight destination 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 11 April 2024. In the last 7 days, Cheapflights users made a total of 910,493 searches.
Wed 8/507:00ONT - SEA
1 stop5h 42mAlaska Airlines
Wed 15/518:55SEA - ONT
Nonstop2h 33mAlaska Airlines
Deal found 11/4£140
Sat 25/517:41ONT - DEN
1 stop7h 14mFrontier
Thu 30/522:37DEN - ONT
Nonstop2h 22mFrontier
Deal found 10/4£142
Thu 2/519:59ONT - SEA
Nonstop2h 38mAlaska Airlines
Tue 7/516:18SEA - ONT
1 stop5h 35mAlaska Airlines
Deal found 11/4£144
Wed 8/506:00ONT - SEA
Nonstop2h 45mAlaska Airlines
Fri 10/507:00SEA - ONT
Nonstop2h 33mAlaska Airlines
Deal found 11/4£149
Sat 1/613:20ONT - DEN
1 stop4h 56mDelta
Mon 3/618:10DEN - ONT
1 stop6h 33mDelta
Deal found 9/4£149
Thu 2/514:00ONT - SEA
Nonstop2h 54mDelta
Sun 5/507:55SEA - ONT
Nonstop2h 44mDelta
Deal found 11/4£153
Wed 8/506:00ONT - SEA
Nonstop2h 45mAlaska Airlines
Sun 12/516:18SEA - ONT
1 stop5h 35mAlaska Airlines
Deal found 11/4£156
Sat 8/613:20ONT - DEN
1 stop4h 28mDelta
Wed 19/618:36DEN - ONT
1 stop6h 07mDelta
Deal found 10/4£158
Mon 6/519:59ONT - SEA
Nonstop2h 38mAlaska Airlines
Sun 12/516:18SEA - ONT
1 stop5h 35mAlaska Airlines
Deal found 11/4£160

Last-minute flight deals from Ontario

Discover last-minute flight deals departing from Ontario. Take advantage of attractive deals offered by airlines for spontaneous travel. These deals are subject to availability and can provide significant savings for flexible travellers. Please note that the availability of last-minute deals can vary and may change quickly. Data last updated 11 April 2024 and based on user searches. In the last 7 days, Cheapflights users made a total of 910,493 searches.
Wed 17/411:20ONT - SEA
Nonstop2h 59mDelta
Wed 1/519:59SEA - ONT
Nonstop2h 41mDelta
Deal found 10/4£185
Sun 21/416:43ONT - SEA
Nonstop2h 38mAlaska Airlines
Sun 28/407:00SEA - ONT
Nonstop2h 33mAlaska Airlines
Deal found 11/4£229
Sat 20/411:20ONT - SEA
1 stop6h 29mAlaska Airlines
Wed 24/413:32SEA - ONT
Nonstop2h 33mAlaska Airlines
Deal found 10/4£236
Wed 17/411:20ONT - SEA
Nonstop2h 59mDelta
Thu 18/407:55SEA - ONT
Nonstop2h 45mDelta
Deal found 10/4£240
Fri 19/406:00ONT - SEA
Nonstop2h 45mAlaska Airlines
Sat 20/413:32SEA - ONT
Nonstop2h 33mAlaska Airlines
Deal found 10/4£245
Wed 17/414:00ONT - SEA
Nonstop2h 55mDelta
Thu 18/417:10SEA - ONT
1 stop6h 49mDelta
Deal found 10/4£248
Fri 19/416:41ONT - SEA
Nonstop2h 38mAlaska Airlines
Sat 20/416:18SEA - ONT
1 stop5h 35mAlaska Airlines
Deal found 10/4£252
Wed 17/413:20ONT - SEA
1 stop5h 40mDelta
Thu 18/417:10SEA - ONT
1 stop6h 49mDelta
Deal found 10/4£255
Tue 16/417:00ONT - SEA
Nonstop2h 38mAlaska Airlines
Tue 7/507:00SEA - ONT
Nonstop2h 33mAlaska Airlines
Deal found 11/4£261

Domestic airfare to nearby cities with cheap hotels

Discover domestic flight options from Ontario to cities with affordable hotel accommodations. Plan your travel to both enjoy budget-friendly flights and find affordable lodging in your chosen destination. Please note that the flight options are sourced from user searches. In the last 7 days, Cheapflights users made a total of 910,493 searches and data was last updated 11 April 2024.
Mon 22/400:59ONT - DFW
1 stop7h 35mFrontier
Wed 24/421:44DFW - ONT
1 stop11h 24mFrontier
Deal found 10/4£96
Tue 23/407:53ONT - SFO
Nonstop1h 27mFrontier
Fri 26/400:58SFO - ONT
1 stop23h 01mFrontier
Deal found 10/4£96
Tue 23/414:01ONT - DFW
Nonstop3h 04mFrontier
Wed 24/411:59DFW - ONT
Nonstop3h 22mFrontier
Deal found 11/4£97
Tue 23/414:01ONT - DFW
Nonstop3h 04mFrontier
Wed 24/411:59DFW - ONT
Nonstop3h 22mFrontier
Deal found 10/4£100
Fri 3/500:55ONT - SFO
1 stop19h 11mFrontier
Mon 6/512:33SFO - ONT
2 stops9h 34mFrontier
Deal found 10/4£100
Tue 23/422:49ONT - SFO
1 stop8h 54mFrontier
Sat 27/421:06SFO - ONT
1 stop9h 25mFrontier
Deal found 10/4£112
Mon 22/422:55ONT - SFO
2 stops12h 28mFrontier
Sat 27/421:06SFO - ONT
1 stop9h 25mFrontier
Deal found 10/4£116
Mon 22/407:53ONT - SFO
Nonstop1h 27mFrontier
Fri 26/400:58SFO - ONT
1 stop23h 01mFrontier
Deal found 10/4£117
Wed 8/506:00ONT - SEA
Nonstop2h 45mAlaska Airlines
Wed 15/513:32SEA - ONT
Nonstop2h 33mAlaska Airlines
Deal found 11/4£125

International flights from Ontario

Explore international flight options available from Ontario. Discover the destinations served by airlines operating from Ontario, compare fares, and find the ideal international flight for your travel plans. Please note that the flight options are sourced from user searches, with fares last updated on 11 April 2024. In the last 7 days, Cheapflights users made a total of 910,493 searches.
Mon 26/800:45ONT - MNL
1 stop17h 50mChina Airlines
Wed 11/916:45MNL - ONT
1 stop16h 55mChina Airlines
Deal found 11/4£701
Fri 30/800:45ONT - MNL
1 stop17h 50mChina Airlines
Tue 10/916:45MNL - ONT
1 stop16h 55mChina Airlines
Deal found 11/4£733
Sun 28/400:10ONT - MNL
1 stop24h 35mChina Airlines
Mon 20/516:45MNL - ONT
1 stop16h 20mChina Airlines
Deal found 10/4£741
Thu 1/800:45ONT - MNL
1 stop17h 50mChina Airlines
Tue 3/916:45MNL - ONT
1 stop16h 55mChina Airlines
Deal found 11/4£745
Thu 25/407:00ONT - MNL
2 stops36h 55mKorean Air
Thu 9/523:30MNL - ONT
2 stops33h 32mKorean Air
Deal found 11/4£752
Mon 22/400:10ONT - MNL
1 stop24h 35mChina Airlines
Wed 8/516:45MNL - ONT
1 stop16h 20mChina Airlines
Deal found 10/4£753
Fri 30/800:45ONT - MNL
1 stop17h 50mChina Airlines
Sun 15/916:45MNL - ONT
1 stop16h 55mChina Airlines
Deal found 11/4£765
Fri 26/400:10ONT - MNL
1 stop24h 35mChina Airlines
Mon 20/516:45MNL - ONT
1 stop16h 20mChina Airlines
Deal found 10/4£773
Thu 1/800:45ONT - MNL
1 stop24h 00mChina Airlines
Fri 6/916:45MNL - ONT
1 stop16h 55mChina Airlines
Deal found 11/4£777

Direct flights from Ontario

Discover airlines that offer direct flights from Ontario to various destinations. Avoid layovers and travel efficiently with direct flight options, saving you time and providing a more convenient travel experience. Please note that the direct flight options are based on data from 11 April 2024 and based on user searches. In the last 7 days, Cheapflights users made a total of 910,493 searches.
Sat 11/522:57ONT - PHX
Nonstop1h 26mFrontier
Sun 19/505:01PHX - ONT
Nonstop1h 16mFrontier
Deal found 11/4£38
Thu 23/509:30ONT - PHX
Nonstop1h 19mFrontier
Sat 8/606:24PHX - ONT
Nonstop1h 16mFrontier
Deal found 11/4£58
Mon 22/422:55ONT - PHX
Nonstop1h 26mFrontier
Tue 23/418:31PHX - ONT
Nonstop1h 16mFrontier
Deal found 11/4£63
Fri 24/500:59ONT - DEN
Nonstop2h 21mFrontier
Thu 30/522:37DEN - ONT
Nonstop2h 22mFrontier
Deal found 10/4£71
Sun 28/400:59ONT - DEN
Nonstop2h 24mFrontier
Sun 5/505:06DEN - ONT
Nonstop2h 25mFrontier
Deal found 10/4£80
Sat 25/508:29ONT - DEN
Nonstop2h 22mFrontier
Thu 30/522:37DEN - ONT
Nonstop2h 22mFrontier
Deal found 10/4£91
Wed 22/510:00ONT - SEA
Nonstop2h 45mAlaska Airlines
Wed 22/516:42SEA - ONT
Nonstop2h 32mAlaska Airlines
Deal found 9/4£120
Tue 7/514:13ONT - SEA
Nonstop2h 57mDelta
Tue 14/507:25SEA - ONT
Nonstop2h 39mDelta
Deal found 11/4£125
Fri 3/507:00ONT - SEA
Nonstop2h 55mDelta
Sat 4/507:55SEA - ONT
Nonstop2h 44mDelta
Deal found 10/4£129

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 11 April 2024. In the last 7 days, Cheapflights users made a total of 910,493 searches

Fly to

Any airport

Budget

£140 - £160

Route

Depart

Return

Price

OntarioSeattle/Tacoma Intl

ONT - SEA

ONTSEA

Ontario

Wed 8/5

1 stop5h 42m

Seattle/Tacoma Intl

Wed 15/5

Nonstop2h 33m

£140

OntarioDenver Intl

ONT - DEN

ONTDEN

Ontario

Sat 25/5

1 stop7h 14m

Denver Intl

Thu 30/5

Nonstop2h 22m

£142

OntarioSeattle/Tacoma Intl

ONT - SEA

ONTSEA

Ontario

Thu 2/5

Nonstop2h 38m

Seattle/Tacoma Intl

Tue 7/5

1 stop5h 35m

£144

OntarioSeattle/Tacoma Intl

ONT - SEA

ONTSEA

Ontario

Wed 8/5

Nonstop2h 45m

Seattle/Tacoma Intl

Fri 10/5

Nonstop2h 33m

£149

OntarioDenver Intl

ONT - DEN

ONTDEN

Ontario

Sat 1/6

1 stop4h 56m

Denver Intl

Mon 3/6

1 stop6h 33m

£149

OntarioSeattle/Tacoma Intl

ONT - SEA

ONTSEA

Ontario

Thu 2/5

Nonstop2h 54m

Seattle/Tacoma Intl

Sun 5/5

Nonstop2h 44m

£153

OntarioSeattle/Tacoma Intl

ONT - SEA

ONTSEA

Ontario

Wed 8/5

Nonstop2h 45m

Seattle/Tacoma Intl

Sun 12/5

1 stop5h 35m

£156

OntarioDenver Intl

ONT - DEN

ONTDEN

Ontario

Sat 8/6

1 stop4h 28m

Denver Intl

Wed 19/6

1 stop6h 07m

£158

OntarioSeattle/Tacoma Intl

ONT - SEA

ONTSEA

Ontario

Mon 6/5

Nonstop2h 38m

Seattle/Tacoma Intl

Sun 12/5

1 stop5h 35m

£160

Flights are sorted by cheapest first

Deals found on 11/4

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. Price data was last updated on 28 January 2024.
Booking 46 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.
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When is the cheapest time to fly from Ontario?

Use this chart to determine the cheapest time to fly return from Ontario. Price data was last updated on 7 April 2024.
Morning
Midday
Afternoon
Evening
All times are departure.
Those who are seeking the cheapest fare on flights departing from Ontario would be wise to consider leaving during Saturday afternoons when prices are typically at their lowest. When considering other options, price-conscious travelers should avoid Saturday afternoons when fares are usually the most expensive.
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Average price of flights from Ontario by month

Plan your trip from Ontario by taking into account the cheapest months to travel. The average price of a one-way flight from Ontario is currently £115 while a return flight costs £150. Price data was last updated on 7 April 2024.

January

£88

February

£100

March

£95

April

£102

May

£112

June

£136

July

£142

August

£115

September

£110

October

£127

November

£92

December

£96

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 910,493 searches.
8.1
Very Good
11,189 reviews

Food

7.5

Boarding

8.2

Overall

8.1

Crew

8.6

Entertainment

8.0

Comfort

7.9

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

8.1
Very Good
11,189 reviews
8.1
Very Good
11,189 reviews

Food

7.5

Boarding

8.2

Overall

8.1

Crew

8.6

Entertainment

8.0

Comfort

7.9

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

7.9
Good
1,659 reviews
8.1
Very Good
11,189 reviews

Food

7.5

Boarding

8.2

Overall

8.1

Crew

8.6

Entertainment

8.0

Comfort

7.9

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

7.7
Good
748 reviews
8.1
Very Good
11,189 reviews

Food

7.5

Boarding

8.2

Overall

8.1

Crew

8.6

Entertainment

8.0

Comfort

7.9

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

7.6
Good
4,005 reviews
8.1
Very Good
11,189 reviews

Food

7.5

Boarding

8.2

Overall

8.1

Crew

8.6

Entertainment

8.0

Comfort

7.9

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

7.4
Good
11,391 reviews
8.1
Very Good
11,189 reviews

Food

7.5

Boarding

8.2

Overall

8.1

Crew

8.6

Entertainment

8.0

Comfort

7.9

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

Browse thousands of different options on Cheapflights for your next trip

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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 11 April 2024.
  • What is the cheapest flight from Ontario to anywhere?

    Users have flown out of Ontario for as low as £42 to Las Vegas (prices may vary depending on the airline and departure time). On average, users have booked flights for £166 to fly from Ontario.

  • What is the shortest nonstop flight from Ontario?

    Consider Phoenix, Prescott, and Tucson if you prefer a quick journey with a short flight time. These locations are all within 346 miles of Ontario

  • What is the farthest nonstop flight from Ontario?

    Travelers looking to get as far as possible can consider Chengdu, Singapore, and Sydney as potential destinations for their travel.

  • What are popular destinations to fly to from Ontario?

    If you’re flying from Ontario, these routes are more frequently taken by airlines Dallas (102 flights per day), Seattle (86 flights per day) and Denver (64 flights per day).

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

    Check out the cheapest flights from Ontario to embark to:
    Travel from Ontario to Seattle from £71 round trip
    Travel from Ontario to London from £479 round trip

  • Which airlines fly from Ontario?

    Only one airline operates round-trip flights from Ontario: Frontier. This airline flies to the following popular destinations: Denver.

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

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

  • What is the cheapest first class flight from Ontario?

    If you’re looking for a cheap first-class flight from Ontario, consider Dallas. Prices start at £668 so you can fly first-class even on a budget.

  • When is the cheapest time to fly from Ontario?

    Those who are seeking the cheapest fare on flights departing from Ontario would be wise to consider leaving during Saturday afternoons when prices are typically at their lowest. When considering other options, price-conscious travelers should avoid Saturday afternoons when fares are usually the most expensive.

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

    Booking 46 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.

  • 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!

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