Users have found that booking a flight from Ottawa to Illinois at least 46 days early can save you up to 63% on average compared to booking a flight this week. If booking 46 days before your flight isn’t an option for you, users have found flights from Ottawa to Illinois for as little as C$ 479 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as C$ 606 for flights departing within the next 3 days.
When flying from Ottawa to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
August is one of the best times of the year to fly to Illinois from Ottawa. Prices for August average C$ 382 per person but you can even find prices for as low as C$ 326. The most expensive prices can be found in the month of December. Opting for a August flight can save you 10% on your journey compared to booking in August
Ottawa (YOW) is the airport you will fly out of if you book a flight from Ottawa to Illinois. It is only a 10.6 km journey to Ottawa (YOW) from Ottawa’s city centre.
Porter Airlines, Air Canada, and United Airlines are some of the carriers that may have flexible cancellation policies. You can use our site to filter for other airlines that may also have this kind of flexibility.
Yes, there are multiple flights from Ottawa to Illinois for under C$ 300. The cheapest flight booked recently is on Porter Airlines for just C$ 289, but on average you can expect to pay C$ 397.
There are currently 20+ open flights from Ottawa to Illinois within the next 7 days for less than C$ 500.
The cheapest airline one-way is Porter Airlines, with whom users have recently found tickets for as low as C$ 189. However, be on the lookout for offers from Air Canada and Delta, as they are both options that can get you from Ottawa to Illinois for a low price.
Most travellers choose Ottawa - Chicago O'Hare Intl, Ottawa - Chicago Midway or Ottawa - Lambert-St Louis when deciding on the best route from Ottawa to Illinois.
Looking for the cheapest flight from Ottawa to Illinois? While on average our users pay C$ 339, our data indicates the cheapest price to be C$ 182. The most popular route (Ottawa - Chicago O'Hare Intl), is priced around C$ 422.
When booking a flight from Ottawa to Illinois, you may want to consider flying on American Airlines, Air Canada or Delta as they are the most popular for this route.
Information is based on travel restrictions from Ottawa to Illinois
Most visitors from Ottawa need to provide a negative COVID-19 test result and/or quarantine to enter Illinois.
COVID-19 testing requirements
Visitors from Ottawa must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Illinois.
Visitors from Ottawa are not required to quarantine after entering Illinois.
Returning to Ottawa from Illinois
COVID-19 testing requirements
Visitors from Illinois must present a negative RT-PCR (NAAT) test taken 72 hours before departing to Ottawa.
Visitors from Illinois are not required to quarantine after entering Ottawa.
||C$ 183||C$ 423||No cancel fee||N/A||
Search Delta flights
||C$ 243||C$ 414||No cancel fee||71%||
Search American Airlines flights
||C$ 280||C$ 382||No cancel fee||52%||
Search Porter Airlines flights
||C$ 307||C$ 525||No cancel fee||67%||
Search Air Canada flights
||C$ 325||C$ 410||No cancel fee||60%||
Search WestJet flights
||C$ 339||C$ 499||No cancel fee||69%||
Search United Airlines flights