Flights from Ottawa International Airport to Illinois

Flight deals from Ottawa International Airport to Illinois

Looking for cheap flights from Ottawa International Airport to Illinois, or a last-minute trip? Find the cheapest prices on one-way and round-trip flights right here.

Flying from Ottawa International Airport to Illinois

Arm yourself with these facts on the fly.
Cheapest flight foundC$236, Chicago
Cheapest month to flyJuly
Average flight time2 hrs, 28 mins
Average flights per week89
Most popular airlineUnited

Frequently asked questions

Yes – direct flights currently operate from Ottawa International Airport to Chicago O'Hare International Airport in Illinois.
We looked at all of the upcoming round-trip flights from Ottawa International Airport to Illinois we could find over the next 12 months. It looks like C$398 is the best price. This is good, compared to the average Illinois ticket price of C$703.
The cheapest month to fly from Ottawa International Airport to Greater Peoria Airport is currently July.
The cheapest month to fly from Ottawa International Airport to Marion Airport is currently July.
The cheapest month to fly from Ottawa International Airport to Moline Airport is currently June.
And the cheapest month to fly from Ottawa International Airport to Chicago Midway Airport is usually July.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Ottawa International Airport to Illinois on Thursday, July 4, 2024.
If you're flying from Ottawa International, the cheapest city in Illinois to fly into is Chicago. The cheapest airport serving Chicago at the moment is Chicago Midway.
The average flight time between Ottawa International Airport and Illinois is 2 hours and 28 minutes.
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