Flights from Ottawa International Airport to Illinois

Flight deals from Ottawa International Airport to Illinois

Looking for a cheap last-minute deal or the best return flight from Ottawa International Airport to Illinois? If you want to travel next month, return fares start from $612. Find the lowest prices on one-way and return tickets right here.

Chicago.$608 per passenger.Departing Sat, 7 Nov, returning Sun, 8 Nov.Return flight with United.Outbound indirect flight with United, departs from Ottawa International on Sat, 7 Nov, arriving in Chicago O'Hare International.Inbound indirect flight with United, departs from Chicago O'Hare International on Sun, 8 Nov, arriving in Ottawa International.Price includes taxes and charges.From $608, select.

Moline.$709 per passenger.Departing Wed, 15 Jul, returning Mon, 20 Jul.Return flight with United.Outbound indirect flight with United, departs from Ottawa International on Wed, 15 Jul, arriving in Moline.Inbound indirect flight with United, departs from Moline on Mon, 20 Jul, arriving in Ottawa International.Price includes taxes and charges.From $709, select.

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Flying from Ottawa International Airport to Illinois

Arm yourself with these facts on the fly.

Cheapest flight found	$608
Cheapest month to fly	November
Average flight time	2 hrs, 27 mins
Average flights per week	107
Most popular airline	United

How to find cheap flights from Ottawa International Airport to Illinois

We've compared the best online travel agents and flight providers on the internet to find the cheapest plane tickets from Ottawa International Airport to Illinois. Other savvy travellers recently found return flights from $608 and one-way tickets from $325. Ready to join them? Here are a few tips to help you do it the smart way.

Fly in November

The cheapest time to fly from Ottawa International Airport to Illinois is currently November.

Flex your dates for the best rates

If you’re flexible on your departure dates, you can use Skyscanner's whole month tool to find the cheapest day of the year to fly from Ottawa International Airport to anywhere you choose in Illinois.

Watch as fares rise and fall

With Price Alerts, we'll let you know when flight prices from Ottawa International Airport to your chosen airport in Illinois go up or down so you can book when the time is just right.

Relax – these are fee-free flight tickets

With us, there are no added fees – the Illinois Airport to Illinois flight price you see when you search with us is what you pay to the provider.

Frequently asked questions

Are there any direct flights from Ottawa International Airport to Illinois?

Yes - direct flights currently operate from Ottawa International Airport to Chicago O'Hare International Airport in Illinois.

What is the average price of a flight from Ottawa International Airport to Illinois?

We looked at all of the upcoming return flights from Ottawa International Airport to Illinois we could find over the next 12 months. It looks like $608 is the best price. This is good, compared to the average Illinois ticket price of $659.

What is the cheapest month to fly from Ottawa International Airport to Illinois?

The cheapest month to fly from Ottawa International Airport to Moline Airport is currently July.
The cheapest month to fly from Ottawa International Airport to Chicago O'Hare International Airport is usually November.

Which upcoming date is cheapest to fly from Ottawa International Airport to Illinois on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Ottawa International Airport to Illinois on Saturday, 7 November 2026.

If I'm flying from Ottawa International Airport, where in Illinois is cheapest to fly into?

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 O'Hare International.