Cheap flights from Ottawa to Chicago from $154
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 2/4. 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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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 typical price of a round-trip flight between Ottawa and Chicago?
What is the cheapest month to fly to Chicago?
The month of April is, on average, the cheapest month to fly to Chicago from Ottawa, with most prices found around $305. If you’re not able to fly to Chicago in April, then February is your next best option. Flight prices from Ottawa to Chicago during February average around $350.
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 Wednesday when prices can be found for as low as $340. This is often the case because there is less demand to fly during this day of the week. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Ottawa to Chicago for around $530.
What is the cheapest time of day to depart on your flight to Chicago?
Our most recent data shows that the best time of day to fly to Chicago is in the evening. Flights from Ottawa to Chicago during this time can be as low as $353. In contrast, the most expensive time of day to depart to Chicago is in the afternoon when prices are around $485.
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?
The best time to book a flight to Chicago from Ottawa is 52 days out, which is when prices tend to be around $537. Don’t hesitate to check prices now though because momondo users recently found tickets for as low as $291.
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 28% 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 January 2025, prices for Ottawa to Chicago flights are approximately 39% more expensive when compared to flights at the same time last year.
How many flights depart from Ottawa to Chicago on average per day?
As of January 2025, there are 4 flights per day flying from Ottawa to Chicago. The most common time of day flights depart is 6:00AM, with 62% of flights taking off at noon.
How many flights depart from Ottawa to Chicago on average per week?
As of January 2025, 32 flights take off from Ottawa and land in Chicago each week. The most common flight departure day for this route is Mon, with 25% of weekly flights 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
How far is Ottawa to Chicago by plane?
The straight-line distance from Ottawa to Chicago is 643.5 mi. 2h 26m is a normal flight duration for this route.
When did momondo last update prices for flights from Ottawa Airport to Chicago?
Prices for flights from Ottawa Airport to Chicago were last updated today.
How many operators does momondo search for flights from Ottawa Airport to Chicago?
As of January 2025, there are 3 operators available to choose from for flights from Ottawa Airport to Chicago.
How old do you have to be to fly from Ottawa Airport to Chicago?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ottawa Airport to Chicago.
What documentation or ID do you need to fly to Chicago?
The necessary travel and health documents for your Chicago trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Ottawa to Chicago?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Ottawa to Chicago is Embraer 175 (Enhanced Winglets) (37.42% of total bookings). The next most popular plane models are Canadair (Bombardier) Regional Jet CRJ-550 (20.81%), Embraer 195 E2 (14.52%), and Embraer 170 (7.42%).
What is the most popular airline from Ottawa to Chicago?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Ottawa to Chicago is Porter Airlines (57% of total bookings). The next most popular airlines are Air Canada (32%) and United Airlines (11%).
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 $266 | Free Cancellation | Rating 7.9 271 reviews | |||
| PriceFrom $410 | Free Cancellation | Rating 7.4 8,940 reviews | |||
| PriceFrom $423 | Free Cancellation | Rating 7.0 8,505 reviews |
United Airlines Flights From Ottawa to Chicago
The lowest priced United Airlines flight from Ottawa to Chicago from the last 72 hours was $410. Generally, United Airlines has 8 flights on this route every week with an average price of $560. United Airlines is rated 7.4/10 by our users.
Air Canada Flights From Ottawa to Chicago
$423 is the best Air Canada flight deal from Ottawa to Chicago found on momondo over the last 72 hours. The average Air Canada ticket price found was closer to $554, however, with flight time and availability significantly affecting the price. Air Canada (7.0/10 from 8,505 user reviews) flies into Chicago from Ottawa 8 times in an average week so prices can vary.
Why use momondo?
Why should I use momondo to find a flight deal from Ottawa to Chicago?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ottawa to Chicago. momondo saves you time and could save you money on your trip.
Can I find flights from Ottawa to Chicago with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Ottawa to Chicago flights to just show those with 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?
If you are not ready to book a flight from Ottawa to Chicago now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Chicago and let you know when they change.