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Oshkosh

$263+ Cheap flights from Ontario (ONT) to Oshkosh, WI

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/11. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MKE
Jan 27 — Feb 31
Mon 1/27
Mon 2/3
1 adult, Economy
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Cheap flight deals from Ontario to Oshkosh

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Oshkosh (OS9). 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 January 22, 2025.

Round-trip from

$263
(American Airlines)

Popular in

June

Cheapest in

January

Average price

$288
From Ontario to Oshkosh
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Highest demand for flights based on searches. 8% potential increase in price ($57 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($26 potential savings vs. average RT price).
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Average for round-trip flights in January 2025
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Find flight deals from Ontario to Oshkosh

Cheapest flights from Ontario to Oshkosh
Explore the most affordable flight options available from Ontario to Oshkosh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 22, 2025.

This American Airlines deal was found by Cheapflights users on 1/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/116:00 amONT - ATW
2 stops10h 29mAmerican Airlines
Sat 2/151:50 pmATW - ONT
1 stop6h 36mAmerican Airlines
Deal found 1/21$263
This Delta deal was found by Cheapflights users on 1/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/81:00 pmONT - ATW
1 stop7h 48mDelta
Wed 2/124:20 pmATW - ONT
2 stops9h 31mDelta
Deal found 1/21$404
This United Airlines deal was found by Cheapflights users on 1/21. 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.
Wed 2/126:00 amONT - ATW
2 stops11h 05mUnited Airlines
Sun 2/1612:50 pmATW - ONT
2 stops10h 02mUnited Airlines
Deal found 1/21$423

Find flights from Ontario to Oshkosh within your budget

Customize your flight search to find flights from Ontario to Oshkosh 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 2,558,603 searches. Data last updated January 22, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

OntarioAppleton

ONT - ATW

ONTATW

Ontario

Tue 2/11

6:00 am-6:29 pm

2 stops10h 29m

Appleton Intl

Sat 2/15

1:50 pm-6:26 pm

1 stop6h 36m

$263

OntarioAppleton

ONT - ATW

ONTATW

Ontario

Sat 2/8

1:00 pm-10:48 pm

1 stop7h 48m

Appleton Intl

Wed 2/12

4:20 pm-11:51 pm

2 stops9h 31m

$404

OntarioAppleton

ONT - ATW

ONTATW

Ontario

Wed 2/12

6:00 am-7:05 pm

2 stops11h 05m

Appleton Intl

Sun 2/16

12:50 pm-8:52 pm

2 stops10h 02m

$423

OntarioAppleton

ONT - ATW

ONTATW

Ontario

Mon 5/12

11:09 pm-10:48 am

2 stops9h 39m

$314

OntarioAppleton

ONT - ATW

ONTATW

Ontario

Fri 2/7

6:00 am-7:05 pm

2 stops11h 05m

$400

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Best time to book a flight from Ontario to Oshkosh

Have a flexible travel schedule? Discover the best time to fly to Oshkosh 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.

Travel insights for flights from Ontario to Oshkosh

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

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

Currently, February is the cheapest month in which you can book a flight from Ontario to Oshkosh (average of $280). Flying from Ontario to Oshkosh in June is currently the most expensive (average of $376). 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 ONT to OS9?

Find hourly flight availability from Ontario to Oshkosh. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 22, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Oshkosh as you normally would.

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

Use this chart to determine the cheapest time to fly round-trip from Ontario to Oshkosh. Price data was last updated on December 16, 2024.

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

Rainfall in Oshkosh by month

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

In terms of precipitation, rainfall in Oshkosh ranges from 1.1 - 3.8 inches per month. June is typically the wettest month, when rainfall can reach 3.8 in. February is typically the driest time to visit Oshkosh when rainfall is around 1.1 in.

Temperature in Oshkosh by month

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

If weather is an important factor for your trip to Oshkosh, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 17.6 F).

Reviews of airlines servicing Oshkosh

Get insights into the airlines that provide service to Oshkosh. 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 Oshkosh. Reviews last updated January 22, 2025.
Delta
8.0
Very good
8,514 reviews

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.6

Overall

8.0

Comfort

8.0

Reviews

1 / 10

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

Delta
8.0
Very good
8,514 reviews
Delta
8.0
Very good
8,514 reviews

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.6

Overall

8.0

Comfort

8.0

Reviews

1 / 10

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

United Airlines
7.4
Good
8,975 reviews
Delta
8.0
Very good
8,514 reviews

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.6

Overall

8.0

Comfort

8.0

Reviews

1 / 10

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

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
8,514 reviews

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.6

Overall

8.0

Comfort

8.0

Reviews

1 / 10

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

Related info for your journey

Find useful and relevant information for your journey from Ontario to Oshkosh. 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 from for flights from Ontario to Oshkosh?

    Located just 3.1 mi from the city center, Ontario is the airport most travelers will use when flying to Oshkosh from Ontario. Booking flights from Ontario (ONT) to Oshkosh should be relatively easy as there are 0 daily outbound flights to Oshkosh from 5 different airlines.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario to Oshkosh 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 Ontario to Oshkosh?

    Currently, February is the cheapest month in which you can book a flight from Ontario to Oshkosh (average of $280). Flying from Ontario to Oshkosh in June is currently the most expensive (average of $376). 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.

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Alternative routes for Ontario to Oshkosh

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Top 5 airlines flying from Ontario to Oshkosh

Discover the top 5 airlines that operate flights from Ontario to Oshkosh. 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 2,558,603 searches. Data last updated January 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$72Average$219FlexibilityNo cancel feeOn-time62%
DeltaCheapest$254Average$447FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$263Average$508FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$288Average$564FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$326Average$417FlexibilityNo cancel feeOn-time63%
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