Ontario

$28+ Cheap flights from Fremont, CA to Ontario (ONT)

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 1/13. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — ONT
Nov 25 — Dec 21
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The best prices from Fremont to Ontario are usually found in May or July, booked 90 days in advance, depart on a Wednesday or Monday and return on a Tuesday

Cheap flight deals from Fremont to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Fremont (FR8) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 20, 2024.

Popular in

January

Cheapest in

May

Round-trip from

$56
(Cheapflightsfares)

One-way from

$28
(Cheapflightsfares)
High demand for flights, 43% potential price rise
Best time to find cheap flights, 32% potential price drop
From Fremont to Ontario
One-way flight from Fremont to Ontario

Find flight deals from Fremont to Ontario

Cheapest flights from Fremont to Ontario
Explore the most affordable flight options available from Fremont to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 20, 2024.

This Cheapflightsfares deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/169:59 pmSFO - ONT
Nonstop1h 24mFrontier
Thu 12/197:47 pmONT - SFO
Nonstop1h 31mFrontier
Deal found 11/19$57
This United Airlines deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/710:35 pmSFO - ONT
Nonstop1h 23mUnited Airlines
Mon 12/96:00 amONT - SFO
Nonstop1h 26mUnited Airlines
Deal found 11/18$199

Find flights from Fremont to Ontario within your budget

Customize your flight search to find flights from Fremont to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,629,791 searches. Data last updated November 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

San FranciscoOntario

SFO - ONT

SFOONT

San Francisco

Fri 1/24

9:59 pm-11:24 pm

Nonstop1h 25m

Ontario

Sun 1/26

6:45 am-8:20 am

Nonstop1h 35m

$56

San FranciscoOntario

SFO - ONT

SFOONT

San Francisco

Sat 1/11

8:25 am-9:51 am

Nonstop1h 26m

Ontario

Sat 1/18

6:15 am-7:46 am

Nonstop1h 31m

$179

San FranciscoOntario

SFO - ONT

SFOONT

San Francisco

Sat 2/15

3:30 pm-8:35 pm

1 stop5h 05m

Ontario

Tue 2/18

6:00 am-1:47 pm

1 stop7h 47m

$230

San FranciscoOntario

SFO - ONT

SFOONT

San Francisco

Mon 1/13

9:59 pm-11:23 pm

Nonstop1h 24m

$28

San FranciscoOntario

SFO - ONT

SFOONT

San Francisco

Wed 2/5

4:35 pm-6:04 pm

Nonstop1h 29m

$79

San FranciscoOntario

SFO - ONT

SFOONT

San Francisco

Tue 2/18

12:27 pm-6:26 pm

1 stop5h 59m

$99

San FranciscoOntario

SFO - ONT

SFOONT

San Francisco

Tue 2/18

11:11 am-4:59 pm

1 stop5h 48m

$111

San FranciscoOntario

SFO - ONT

SFOONT

San Francisco

Thu 1/9

1:25 pm-8:45 pm

2 stops7h 20m

$113

San FranciscoOntario

SFO - ONT

SFOONT

San Francisco

Tue 11/26

4:58 pm-9:04 am

2 stops16h 06m

$227

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Best time to book a flight from Fremont to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Fremont 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.

Travel insights for flights from Fremont to Ontario

Get recent, data-driven insights about flights from Fremont to Ontario including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Fremont to Ontario?

Use this chart to determine the optimal time to book a round-trip flight from Fremont to Ontario. Price data was last updated on November 15, 2024.

The price you pay for your flight from Fremont to Ontario may vary depending on when you book. For the best chance of a lower fare, look to book 55 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Fremont to Ontario?

Currently, September is the cheapest month in which you can book a flight from Fremont to Ontario (average of $236). Flying from Fremont to Ontario in December is currently the most expensive (average of $298). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from FR8 to ONT?

Find hourly flight availability from Fremont to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 20, 2024.

When flying from Fremont to Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What is the cheapest day to fly from Fremont to Ontario?

Use this chart to determine the cheapest time to fly round-trip from Fremont to Ontario. Price data was last updated on January 21, 2024.

Travelers seeking maximum savings on their Fremont to Ontario flight should consider departing on Wednesday at noon when fares are most often at their lowest. Thursday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Fremont to Ontario

Explore weekly flight availability from Fremont to Ontario. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated November 20, 2024.

The most flights from FR8 to ONT are scheduled on a Monday (11 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (9 on average).

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated November 20, 2024.
Read through reviews of airlines operating flights from Fremont to Ontario, such as Frontier and United Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very good
5,014 reviews

Entertainment

7.7

Comfort

8.1

Food

7.2

Overall

8.1

Crew

8.7

Boarding

8.2

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

8.1
Very good
5,014 reviews
8.1
Very good
5,014 reviews

Entertainment

7.7

Comfort

8.1

Food

7.2

Overall

8.1

Crew

8.7

Boarding

8.2

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

8.0
Very good
9,461 reviews
8.1
Very good
5,014 reviews

Entertainment

7.7

Comfort

8.1

Food

7.2

Overall

8.1

Crew

8.7

Boarding

8.2

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

7.4
Good
9,171 reviews
8.1
Very good
5,014 reviews

Entertainment

7.7

Comfort

8.1

Food

7.2

Overall

8.1

Crew

8.7

Boarding

8.2

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

7.2
Good
10,000 reviews
8.1
Very good
5,014 reviews

Entertainment

7.7

Comfort

8.1

Food

7.2

Overall

8.1

Crew

8.7

Boarding

8.2

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

6.1
Okay
3,539 reviews
8.1
Very good
5,014 reviews

Entertainment

7.7

Comfort

8.1

Food

7.2

Overall

8.1

Crew

8.7

Boarding

8.2

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Related info for your journey

Find useful and relevant information for your journey from Fremont to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly into for flights to Ontario from Fremont?

    For a flight from Fremont to Ontario, you will be flying into Ontario. Ontario (ONT) is just 3.1 mi from the center of the city. Ontario is the only Ontario airport and it handles 10 inbound flights from Fremont per day. 7 airlines have flights to Ontario from Fremont on a regular basis.

  • How popular is this Fremont to Ontario flight route?

  • What are the cheapest airlines to fly from Fremont to Ontario one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $28. Users have also found prices from $79 and $99 on United Airlines and American Airlines, respectively.

  • What are the most reliable airlines from Fremont to Ontario?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Fremont to Ontario on time: Copa Airlines (96%), Frontier (90%), Air Canada (89%).

  • What are the cheapest flights from Fremont to Ontario?

    While on average a flight from Fremont to Ontario is generally $177, our data shows the cheapest flight currently is $24. When looking at the most popular route, (San Francisco - Ontario), you can expect to pay $55 for that flight.

  • Can I find deals for flights from Fremont to Ontario that include hotel bookings?

    Yes. In addition to deals on Fremont to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Fremont to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Fremont to Ontario.

  • Can I find deals for business class flights from Fremont to Ontario?

    Yes. Cheapflights offers flight deals from Fremont to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Fremont to Ontario?

    Currently, September is the cheapest month in which you can book a flight from Fremont to Ontario (average of $236). Flying from Fremont to Ontario in December is currently the most expensive (average of $298). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Fremont to Ontario

See prices for flight routes from nearby airports that may be better suited for you.

Top 7 airlines flying from Fremont to Ontario

Discover the top 7 airlines that operate flights from Fremont to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,629,791 searches. Data last updated November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$33Average$104FlexibilityNo cancel feeOn-time65%
FrontierCheapest$38Average$104FlexibilityNo cancel feeOn-time62%
DeltaCheapest$45Average$115FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$55Average$334FlexibilityNo cancel feeOn-time75%
Breeze AirwaysCheapest$78Average$152FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$98Average$284FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$191Average$275FlexibilityNo cancel feeOn-time63%
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