Cheap flights from Ottawa to Chicago from C$ 229
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ottawa to Chicago departing on 24/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Air Canada flights from Ottawa to Chicago
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WestJet flights from Ottawa to Chicago
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How to get the cheapest flight ticket from Ottawa to Chicago
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Chicago?
The month of April is another great option to travel to Chicago, with average flight prices from Ottawa averaging around C$ 527.
What is the cheapest day to depart on your flight to Chicago?
The cheapest day to depart on your flight to Chicago is on a Friday when prices can be found for as low as C$ 805. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around C$ 912. These prices are subject to change though, so be sure to set up a Price Alert for flights to Chicago.
What is the cheapest time of day to depart on your flight to Chicago?
At noon is the cheapest time of day to fly from Ottawa to Chicago when you can find flight prices for as low as C$ 499. Flying to Chicago at noon is an ideal time because this is during off-peak travel hours. In the morning is when there is more demand to fly to Chicago, so prices are often more expensive at around C$ 895 per ticket.
What is the cheapest Ottawa to Chicago flight route?
Fly from Ottawa to Chicago O'Hare Intl for the best Ottawa - Chicago flight prices
How far in advance should I book a flight to Chicago?
You are more likely to see cheaper flights to Chicago from Ottawa when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago for around C$ 715 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago from Ottawa for as low as C$ 593 on momondo.
What cabin class options are available on Ottawa to Chicago flights?
There are 4 cabin classes available to choose from on Ottawa to Chicago flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
Can stopping save me money on Ottawa to Chicago flights?
You could potentially save up to 8% on your flight if you consider stops on a Ottawa to Chicago flight.
How have Ottawa to Chicago flight prices changed over time?
As of July 2025, prices for Ottawa to Chicago flights are approximately 10% cheaper when compared to flights at the same time last year.
What is the cheapest airline that flies from Ottawa to Chicago?
Air Canada, Porter Airlines, and United Airlines are the most popular carriers operating from Ottawa to Chicago
Which airlines fly to Chicago?
Air Canada, Porter Airlines and United Airlines are the top three most popular airlines that fly to Chicago from Ottawa according to our data. Air Canada is the first choice among our users, with 66% of people opting to fly with this airline when travelling to Chicago. Keep in mind that there are 5 different airlines that fly to Chicago on a routine basis, so you have a few additional options to choose from.
How many flights depart from Ottawa to Chicago on average per day?
As of July 2025, 12 flights take off from Ottawa and land in Chicago each day. The most common flight departure time for this route is 6:00a.m., with 75% of daily flights taking off at noon.
How many flights depart from Ottawa to Chicago on average per week?
84 flights are operational weekly from Ottawa to Chicago as of July 2025. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.
When to book flights from Ottawa to Chicago
Cheap Ottawa to Chicago (YOW to CHI) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Ottawa to Chicago
Best price found | C$ 229 |
|---|---|
Fastest flight time | 2h 19m |
Direct flights | Mon, Wed, Thu, Fri, Sat and Sun |
Airports in Chicago | 2 airports |
How far is Ottawa to Chicago by plane?
A flight from Ottawa to Chicago will travel around 1035.5 km. In terms of flight time, this usually takes a little over 2h 22m.
When did momondo last update prices for flights from Ottawa Airport to Chicago?
Prices for flights from Ottawa Airport to Chicago refresh daily.
How many operators does momondo search for flights from Ottawa Airport to Chicago?
The number of operators available for flights from Ottawa Airport to Chicago is 3 as of July 2025.
How old do you have to be to fly from Ottawa Airport to Chicago?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ottawa Airport to Chicago.
What documentation or ID do you need to fly to Chicago?
The travel and health documents required for your trip to Chicago can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Chicago. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Ottawa to Chicago?
Based on momondo bookings for flights between Ottawa and Chicago, the leading plane model is Embraer 175 (Enhanced Winglets), making up 35.36% of the total bookings. Other popular models include Canadair (Bombardier) Regional Jet CRJ-550 with 34.14%, Embraer 170 with 10.93%, and Embraer 195 E2 with 5.31%.
What is the most popular airline from Ottawa to Chicago?
momondo data reveals that the most frequently booked airline on the route from Ottawa to Chicago is Porter Airlines, representing 59% of all bookings. The subsequent popular airlines are Air Canada at 28% and United Airlines at 13%.
Best airlines flying from Ottawa to Chicago
Compare and see reviews for airlines that fly from Ottawa to Chicago with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom C$ 366 | Free Cancellation | Rating 8.0 298 reviews | |||
| PriceFrom C$ 496 | Free Cancellation | Rating 7.1 9,678 reviews | |||
| PriceFrom C$ 530 | Free Cancellation | Rating 7.4 8,861 reviews |
United Airlines Flights From Ottawa to Chicago
Across 21 United Airlines flights from Ottawa to Chicago this week, the average price was C$ 503, with the best United Airlines deals starting from C$ 389 round-trip. 8,861 users have rated United Airlines on momondo, with an average score of 7.4/10.
Air Canada Flights From Ottawa to Chicago
Across 9,678 Air Canada reviews on momondo, the average score is 7.1/10. Air Canada flies from Ottawa to Chicago about 21 times each week, with ticket deals ranging from C$ 364 to C$ 476. Price data is based on momondo searches in the last 72 hours.
Travelling to a place near Chicago?
Book flights to Chicago if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Ottawa to Chicago?
Finding the right flight to Chicago from Ottawa is quick and easy when you have a range of options in front of you, from reputable agents and recognizable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Chicago quick and easy, saving you time and money.
Can I find flights from Ottawa to Chicago with flexible booking policies on momondo?
All flight searches from Ottawa to Chicago on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from Ottawa to Chicago?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Chicago from Ottawa.
I’m not ready to book a flight from Ottawa to Chicago right now. Can momondo alert me if prices change?
Yes. momondo can track prices for Ottawa to Chicago flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.