$1,777+ Cheap flights from Dubuque (DBQ) to Ontario
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 6/27. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Dubuque to Ontario with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Dubuque to Ontario
Keep the following information in mind while searching for Dubuque to Ontario flight deals. Data was last updated April 29, 2025.
Round-trip from | $1,777 (United) |
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Find flight deals from Dubuque to Ontario
Best flights from Dubuque to OntarioDiscover carefully curated flight deals from Dubuque to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 29, 2025.
Discover carefully curated flight deals from Dubuque to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 29, 2025.
This United deal was found by Cheapflights users on 4/28. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Best time to book a flight from Dubuque to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Dubuque with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Dubuque to Ontario
What is the cheapest month to book a flight from Dubuque to Region of Ontario?
Currently, January is the cheapest month in which you can book a flight from Dubuque to Region of Ontario (average of $243). Flying from Dubuque to Region of Ontario in July is currently the most expensive (average of $359). 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.
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 Region of Ontario ranges from 2.0 - 3.3 inches per month. June is typically the wettest month, when rainfall can reach 3.3 in. February is typically the driest time to visit Region of Ontario when rainfall is around 2.0 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 Region of Ontario, 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 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).