Cheap flights from Ontario to anywhere

Fly from Ontario to anywhere in the world.

ONT — SEA
Jul 16 — Jul 231

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 travelers. Please note that the information is based on the most recent updates available. Data last updated July 11, 2024.

Cheapest one-way flight

$19

Cheapest round-trip flight

$36

Cheapest airline

Alaska Airlines

Most popular destination

Las Vegas Harry Reid Intl (LAS)
The cheapest one-way flight from Ontario is currently to Oakland.
The cheapest round-trip flight from Ontario is currently to Oakland.
On average, Alaska Airlines currently has the cheapest one-way flight from Ontario.
Las Vegas Harry Reid Intl (LAS) 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 July 11, 2024. In the last 7 days, Cheapflights users made a total of 2,800,118 searches.
Thu 7/251:35 pmONT - LAS
Nonstop1h 24mFrontier
Fri 8/29:15 amLAS - ONT
Nonstop1h 08mFrontier
Deal found 7/10$58
Mon 9/910:06 amONT - SEA
Nonstop2h 47mFrontier
Wed 9/111:37 pmSEA - ONT
Nonstop2h 37mFrontier
Deal found 7/10$58
Mon 10/147:36 amONT - SFO
Nonstop1h 26mFrontier
Thu 10/175:15 amSFO - ONT
Nonstop1h 21mFrontier
Deal found 7/10$58
Sun 9/812:49 amONT - DEN
Nonstop2h 21mFrontier
Thu 9/1210:20 pmDEN - ONT
Nonstop2h 19mFrontier
Deal found 7/10$58
Sun 7/219:10 pmONT - LAS
Nonstop1h 22mFrontier
Fri 7/269:15 amLAS - ONT
Nonstop1h 08mFrontier
Deal found 7/11$59
Tue 8/1311:44 amONT - SEA
Nonstop2h 36mFrontier
Wed 8/149:44 amSEA - ONT
Nonstop2h 47mFrontier
Deal found 7/11$59
Thu 8/18:07 amONT - SFO
Nonstop1h 26mFrontier
Sun 8/45:45 amSFO - ONT
Nonstop1h 22mFrontier
Deal found 7/10$59
Tue 9/2412:49 amONT - DEN
Nonstop2h 21mFrontier
Mon 9/3010:20 pmDEN - ONT
Nonstop2h 19mFrontier
Deal found 7/11$59
Wed 10/96:57 amONT - DFW
Nonstop3h 14mFrontier
Tue 10/155:05 amDFW - ONT
Nonstop3h 02mFrontier
Deal found 7/10$60

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 travelers. Please note that the availability of last-minute deals can vary and may change quickly. Data last updated July 11, 2024 and based on user searches. In the last 7 days, Cheapflights users made a total of 2,800,118 searches.
Tue 7/169:58 amONT - SEA
Nonstop2h 36mFrontier
Wed 7/171:34 pmSEA - ONT
Nonstop2h 47mFrontier
Deal found 7/10$135
Sat 7/2012:59 amONT - DEN
Nonstop2h 20mFrontier
Thu 7/256:31 amDEN - ONT
1 stop8h 58mFrontier
Deal found 7/10$135
Fri 7/1910:03 pmONT - DEN
Nonstop2h 27mFrontier
Mon 7/2210:30 pmDEN - ONT
Nonstop2h 19mFrontier
Deal found 7/11$136
Tue 7/168:27 amONT - DEN
Nonstop2h 25mFrontier
Mon 7/2210:30 pmDEN - ONT
Nonstop2h 19mFrontier
Deal found 7/11$137
Wed 7/1712:49 amONT - LAS
1 stop6h 40mFrontier
Sat 8/176:00 amLAS - ONT
Nonstop1h 03mFrontier
Deal found 7/9$138
Tue 7/169:58 amONT - SEA
Nonstop2h 36mFrontier
Tue 7/231:34 pmSEA - ONT
Nonstop2h 47mFrontier
Deal found 7/10$138
Wed 7/1712:49 amONT - SFO
1 stop5h 54mFrontier
Sat 8/175:34 pmSFO - ONT
Nonstop1h 24mFrontier
Deal found 7/11$138
Wed 7/178:17 amONT - DEN
Nonstop2h 25mFrontier
Wed 7/316:00 amDEN - ONT
Nonstop2h 17mFrontier
Deal found 7/10$138
Wed 7/175:16 pmONT - SFO
1 stop4h 48mFrontier
Thu 7/185:45 amSFO - ONT
Nonstop1h 22mFrontier
Deal found 7/10$139

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 2,800,118 searches and data was last updated July 11, 2024.
Thu 7/251:35 pmONT - LAS
Nonstop1h 24mFrontier
Fri 8/29:15 amLAS - ONT
Nonstop1h 08mFrontier
Deal found 7/10$58
Mon 9/910:06 amONT - SEA
Nonstop2h 47mFrontier
Wed 9/111:37 pmSEA - ONT
Nonstop2h 37mFrontier
Deal found 7/10$58
Mon 10/147:36 amONT - SFO
Nonstop1h 26mFrontier
Thu 10/175:15 amSFO - ONT
Nonstop1h 21mFrontier
Deal found 7/10$58
Sun 9/812:49 amONT - DEN
Nonstop2h 21mFrontier
Thu 9/1210:20 pmDEN - ONT
Nonstop2h 19mFrontier
Deal found 7/10$58
Sun 7/219:10 pmONT - LAS
Nonstop1h 22mFrontier
Fri 7/269:15 amLAS - ONT
Nonstop1h 08mFrontier
Deal found 7/11$59
Tue 8/1311:44 amONT - SEA
Nonstop2h 36mFrontier
Wed 8/149:44 amSEA - ONT
Nonstop2h 47mFrontier
Deal found 7/11$59
Thu 8/18:07 amONT - SFO
Nonstop1h 26mFrontier
Sun 8/45:45 amSFO - ONT
Nonstop1h 22mFrontier
Deal found 7/10$59
Tue 9/2412:49 amONT - DEN
Nonstop2h 21mFrontier
Mon 9/3010:20 pmDEN - ONT
Nonstop2h 19mFrontier
Deal found 7/11$59
Wed 10/96:57 amONT - DFW
Nonstop3h 14mFrontier
Tue 10/155:05 amDFW - ONT
Nonstop3h 02mFrontier
Deal found 7/10$60

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 July 11, 2024. In the last 7 days, Cheapflights users made a total of 2,800,118 searches.
Tue 10/86:00 amONT - DXB
2 stops25h 35mUnited Airlines
Mon 10/141:55 amDXB - ONT
2 stops26h 22mUnited Airlines
Deal found 7/10$752
Tue 10/1512:10 amONT - MNL
1 stop18h 25mChina Airlines
Tue 10/2910:55 amMNL - ONT
1 stop21h 40mChina Airlines
Deal found 7/10$754
Mon 11/410:45 pmONT - MNL
1 stop19h 10mChina Airlines
Mon 11/1810:55 amMNL - ONT
1 stop21h 40mChina Airlines
Deal found 7/10$755
Tue 10/2212:10 amONT - MNL
1 stop18h 25mChina Airlines
Mon 11/114:00 amMNL - ONT
1 stop28h 35mChina Airlines
Deal found 7/9$756
Sun 10/1312:10 amONT - MNL
1 stop24h 35mChina Airlines
Mon 11/44:55 pmMNL - ONT
1 stop15h 40mChina Airlines
Deal found 7/10$757
Mon 10/216:00 amONT - DXB
2 stops25h 35mUnited Airlines
Mon 10/282:15 amDXB - ONT
2 stops30h 47mUnited Airlines
Deal found 7/10$757
Sun 10/1312:10 amONT - MNL
1 stop18h 25mChina Airlines
Thu 10/314:55 pmMNL - ONT
1 stop15h 40mChina Airlines
Deal found 7/10$765
Thu 11/1410:45 pmONT - MNL
1 stop19h 10mChina Airlines
Tue 12/34:55 pmMNL - ONT
1 stop15h 40mChina Airlines
Deal found 7/10$766
Thu 11/1410:45 pmONT - MNL
1 stop34h 25mChina Airlines
Mon 12/24:55 pmMNL - ONT
1 stop15h 40mChina Airlines
Deal found 7/10$774

Find flights from Ontario within your budget

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Fly to

Any airport

Budget

$58 - $60

Route

Depart

Return

Price

OntarioLas Vegas Harry Reid Intl

ONT - LAS

ONTLAS

Ontario

Thu 7/25

Nonstop1h 24m

Las Vegas Harry Reid Intl

Fri 8/2

Nonstop1h 08m

$58

OntarioSeattle/Tacoma Intl

ONT - SEA

ONTSEA

Ontario

Mon 9/9

Nonstop2h 47m

Seattle/Tacoma Intl

Wed 9/11

Nonstop2h 37m

$58

OntarioSan Francisco

ONT - SFO

ONTSFO

Ontario

Mon 10/14

Nonstop1h 26m

San Francisco

Thu 10/17

Nonstop1h 21m

$58

OntarioDenver Intl

ONT - DEN

ONTDEN

Ontario

Sun 9/8

Nonstop2h 21m

Denver Intl

Thu 9/12

Nonstop2h 19m

$58

OntarioLas Vegas Harry Reid Intl

ONT - LAS

ONTLAS

Ontario

Sun 7/21

Nonstop1h 22m

Las Vegas Harry Reid Intl

Fri 7/26

Nonstop1h 08m

$59

OntarioSeattle/Tacoma Intl

ONT - SEA

ONTSEA

Ontario

Tue 8/13

Nonstop2h 36m

Seattle/Tacoma Intl

Wed 8/14

Nonstop2h 47m

$59

OntarioSan Francisco

ONT - SFO

ONTSFO

Ontario

Thu 8/1

Nonstop1h 26m

San Francisco

Sun 8/4

Nonstop1h 22m

$59

OntarioDenver Intl

ONT - DEN

ONTDEN

Ontario

Tue 9/24

Nonstop2h 21m

Denver Intl

Mon 9/30

Nonstop2h 19m

$59

OntarioDallas/Fort Worth

ONT - DFW

ONTDFW

Ontario

Wed 10/9

Nonstop3h 14m

Dallas/Fort Worth

Tue 10/15

Nonstop3h 02m

$60

Flights are sorted by cheapest first

Deals found on 7/10

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

Use this chart to determine the optimal time to book a round-trip flight from Ontario. Price data was last updated on July 5, 2024.
To ensure you get the cheapest price possible for a flight from Ontario, you should look to book at least 80 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
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When is the cheapest time to fly from Ontario?

Use this chart to determine the cheapest time to fly round-trip from Ontario. Price data was last updated on July 7, 2024.
Morning
Noon
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 at noon when prices are typically at their lowest. When considering other options, price-conscious travelers should avoid Tuesday evenings when fares are usually the most expensive.
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Ontario travel tips

Get helpful tips and advice for traveling to or from Ontario. Find recommendations for transportation, accommodations, local attractions, dining options, and other practical tips to enhance your travel experience. Please note that the travel tips are based on general knowledge and recommendations. Data last updated July 11, 2024.
  • If you are a member of the military, you can always go to the USO Lounge at Ontario International Airport (ONT), which provides free drinks, snacks, and access to high-speed Wi-Fi. It can be found directly across from Parking Lot F.
  • Parents will want to take note of the nursing rooms that are scattered throughout Ontario International Airport (ONT). These rooms provide parents with a comfortable place to tend to their children and contain amenities like padded benches, changing tables, and outlets.
  • Ontario International Airport (ONT) has several dining options to choose from, including a few fast-food restaurants, and sit-down restaurants that serve cuisines like American and Italian.

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 round-trip 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.

Airline reviews for flights from Ontario

Read reviews and ratings of airlines operating flights from Ontario. Gain insights into the quality of service, in-flight amenities, customer experiences, and overall satisfaction to choose the best airline for your Ontario travel. Please note that the reviews are sourced from user searches and were last updated on July 11, 2024. In the last 7 days, Cheapflights users made a total of 2,800,118 searches.
Southwest
8.2
Very good
5,711 reviews

Boarding

8.3

Overall

8.2

Crew

8.7

Food

7.3

Comfort

8.1

Entertainment

7.8

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Southwest
8.2
Very good
5,711 reviews
Southwest
8.2
Very good
5,711 reviews

Boarding

8.3

Overall

8.2

Crew

8.7

Food

7.3

Comfort

8.1

Entertainment

7.8

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

8.1
Very good
9,367 reviews
Southwest
8.2
Very good
5,711 reviews

Boarding

8.3

Overall

8.2

Crew

8.7

Food

7.3

Comfort

8.1

Entertainment

7.8

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

8.0
Very good
9,842 reviews
Southwest
8.2
Very good
5,711 reviews

Boarding

8.3

Overall

8.2

Crew

8.7

Food

7.3

Comfort

8.1

Entertainment

7.8

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

7.4
Good
10,000 reviews
Southwest
8.2
Very good
5,711 reviews

Boarding

8.3

Overall

8.2

Crew

8.7

Food

7.3

Comfort

8.1

Entertainment

7.8

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

6.2
Okay
3,868 reviews
Southwest
8.2
Very good
5,711 reviews

Boarding

8.3

Overall

8.2

Crew

8.7

Food

7.3

Comfort

8.1

Entertainment

7.8

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Browse thousands of different options on Cheapflights for your next trip

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Popular international destinations from Ontario
The most popular international flight routes departing from Ontario we’ve come across at this time.

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 July 11, 2024.
  • What are the most popular destinations to fly to from Ontario?

    This month, the top selected destinations from Ontario are Denver, Dallas/Fort Worth Airport, 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 flight from Ontario to anywhere?

    Users have flown out of Ontario for as low as $17 to Sacramento (prices may vary depending on the airline and departure time). On average, users have booked flights for $538 to fly from Ontario.

  • What are the cheapest airlines flying from Ontario to anywhere?

    Over the past few days, we've found that Frontier, Breeze Airways, and Alaska Airlines have the cheapest prices from Ontario. Frontier flights from Ontario to Denver Arapahoe Co ($19), Breeze Airways flights from Ontario to Napa County ($30), and Alaska Airlines flights from Ontario to Walla Walla ($35).

  • What is the shortest nonstop flight from Ontario?

    For shorter trips consider Phoenix, Prescott, and Tucson as potential places to explore. All can be options to fly to and are within 346 miles of Ontario.

  • What is the farthest nonstop flight from Ontario?

    If flights to distant destinations are more of your preference, check pricing for Chengdu, Singapore, and Sydney.

  • 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 Las Vegas starting at $296
    Fly from Ontario to Nashville starting at $358
    Fly from Ontario to Seattle starting at $517
    Fly from Ontario to Guadalajara starting at $631

  • What is the cheapest first class flight from Ontario?

    If you’re looking for a cheap first-class flight from Ontario, consider San Francisco. Prices start at $492 so you can fly first-class even on a budget.

  • What is the cheapest month to fly from Ontario?

    October 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?

    Check out the cheapest flights from Ontario to embark to:
    Fly from Ontario to Las Vegas from $33 round trip
    Fly from Ontario to San Francisco from $35 round trip
    Fly from Ontario to Phoenix from $35 round trip
    Fly from Ontario to Sacramento from $38 round trip
    Fly from Ontario to Salt Lake City from $48 round trip

  • What parking options are available at Ontario International Airport (ONT)?

    There are a few parking options available at Ontario International Airport (ONT), including over five different lots that provide short and long-term parking. You can also opt for premium parking, which will put you closer to your terminal.

  • How can I go from downtown Ontario to Ontario International Airport (ONT)?

    If you drive from downtown Ontario to Ontario International Airport (ONT), it will take around 5 to 10 minutes. With public transportation, like bus line 61, it will take you around 30 to 35 minutes instead.

  • Is there a hotel located directly at Ontario International Airport (ONT)?

    Ontario International Airport (ONT) does not have its own on-site hotel, but there are quite a few that are just a short distance from the transportation hub. The DoubleTree by Hilton Hotel Ontario Airport has a free shuttle and is less than a 15-minute drive away.

  • Does Ontario International Airport (ONT) have any pet relief areas?

    Ontario International Airport (ONT) has pet relief areas that are both indoors and outdoors. Indoor areas can be found in Terminals 2 and 4, while outdoor areas are located at the far end of each terminal building.

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