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Cheap flights from Ottawa to Illinois from $165

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 Illinois departing on 2/18. 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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Find the cheapest flights from Ottawa to Illinois

Cheap round-trip flights

These are some of the best round-trip flight deals from Ottawa to Illinois that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Ottawa to Illinois.

Cheap last minute flights

Planning a quick getaway from Ottawa to Illinois? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Illinois, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Ottawa to Illinois

Find recent round-trip train or bus tickets from Ottawa to Illinois.

All round-trip flight deals to Illinois

The cheapest plane tickets to Illinois found on KAYAK recently.
8:40 am - 12:10 pmYOW-MDW
4h 30m1 stop
1:05 pm - 6:34 pmMDW-YOW
4h 29m1 stop
$278Porter Airlines
Find Deal
Fri, Feb 14 - Mon, Feb 17
7:00 am - 12:10 pmYOW-MDW
6h 10m1 stop
1:05 pm - 8:34 pmMDW-YOW
6h 29m1 stop
$308Porter Airlines
Find Deal
Sat, Jan 18 - Thu, Feb 13
6:20 am - 8:45 pmYOW-ORD
15h 25m2 stops
5:35 am - 3:16 pmORD-YOW
8h 41m1 stop
Fri, Jan 24 - Mon, Jan 27
4:15 pm - 9:39 amYOW-ORD
18h 24m1 stop
4:45 pm - 6:20 pmORD-YOW
24h 35m2 stops
Sat, Jan 18 - Thu, Feb 13
5:00 pm - 6:34 pmYOW-ORD
2h 34mnonstop
7:26 am - 10:31 amORD-YOW
2h 05mnonstop
$406United Airlines
Find Deal
Fri, Feb 14 - Mon, Feb 17
5:25 pm - 6:54 pmYOW-ORD
2h 29mnonstop
12:55 pm - 10:05 pmORD-YOW
8h 10m1 stop
$419United Airlines
Find Deal
Wed, Apr 9 - Sat, Apr 12
5:25 pm - 6:54 pmYOW-ORD
2h 29mnonstop
7:00 am - 12:17 pmORD-YOW
4h 17m1 stop
$420Air Canada
Find Deal
Wed, Apr 9 - Fri, Apr 11
8:25 am - 1:11 pmYOW-ORD
5h 46m1 stop
3:40 pm - 10:07 pmORD-YOW
5h 27m1 stop
$422Air Canada
Find Deal
Sun, Apr 27 - Sat, May 3
5:55 am - 4:13 pmYOW-ORD
11h 18m2 stops
1:40 pm - 12:10 amORD-YOW
9h 30m2 stops
$502WestJet
Find Deal
Thu, Jan 23 - Thu, Jan 30
5:55 am - 12:55 pmYOW-ORD
8h 00m2 stops
1:40 pm - 12:10 amORD-YOW
9h 30m2 stops
$513WestJet
Find Deal
Fri, Jan 24 - Sun, Jan 26
8:40 am - 12:10 pmYOW-MDW
4h 30m1 stop
$165Porter Airlines
Find Deal
Tue, Feb 18
5:55 am - 2:52 pmYOW-ORD
33h 57m2 stops
Wed, Jan 15
5:25 pm - 6:54 pmYOW-ORD
2h 29mnonstop
$227Air Canada
Find Deal
Wed, May 7
11:05 am - 2:55 pmYOW-ORD
4h 50m1 stop
$232Air Canada
Find Deal
Wed, May 7
5:15 am - 2:52 pmYOW-ORD
10h 37m2 stops
$244United Airlines
Find Deal
Wed, May 7
5:15 am - 2:52 pmYOW-ORD
10h 37m2 stops
$245United Airlines
Find Deal
Wed, May 7
6:15 am - 4:44 pmYOW-ORD
11h 29m2 stops
$268WestJet
Find Deal
Sat, Jun 14
5:55 am - 12:30 pmYOW-MDW
7h 35m2 stops
$433Delta
Find Deal
Sat, Jun 14
5:55 am - 12:30 pmYOW-MDW
7h 35m2 stops
$434Delta
Find Deal
Wed, May 7
8:10 pm - 10:12 amYOW-MDW
15h 02m2 stops
$456WestJet
Find Deal
Wed, Jan 15
7:00 am - 10:20 amYOW-MDW
4h 20m1 stop
5:35 pm - 10:26 pmMDW-YOW
3h 51m1 stop
$658Porter Airlines
Find Deal
Fri, Dec 27 - Mon, Jan 6
11:50 am - 4:40 pmYOW-MDW
5h 50m1 stop
11:15 am - 5:06 pmMDW-YOW
4h 51m1 stop
$844Porter Airlines
Find Deal
Fri, Dec 27 - Tue, Dec 31
5:55 am - 4:40 pmYOW-ORD
11h 45m2 stops
10:30 am - 12:10 amORD-YOW
12h 40m2 stops
$913WestJet
Find Deal
Fri, Dec 27 - Mon, Jan 6
11:35 am - 2:51 pmYOW-ORD
4h 16m1 stop
1:55 pm - 5:06 pmORD-YOW
2h 11mnonstop
$918Air Canada
Find Deal
Fri, Dec 27 - Mon, Jan 6
6:20 am - 8:03 amYOW-ORD
2h 43mnonstop
6:06 pm - 9:24 pmORD-YOW
2h 18mnonstop
$923Air Canada
Find Deal
Fri, Dec 27 - Mon, Jan 6
2:10 pm - 7:32 pmYOW-ORD
6h 22m1 stop
8:25 pm - 1:37 amORD-YOW
4h 12m1 stop
$973Air Canada
Find Deal
Fri, Dec 27 - Tue, Dec 31
5:55 am - 8:59 pmYOW-ORD
16h 04m2 stops
7:00 am - 12:10 amORD-YOW
16h 10m2 stops
$992WestJet
Find Deal
Fri, Dec 27 - Tue, Dec 31
6:20 am - 8:03 amYOW-ORD
2h 43mnonstop
6:06 pm - 9:24 pmORD-YOW
2h 18mnonstop
$996United Airlines
Find Deal
Fri, Dec 27 - Tue, Dec 31
5:55 am - 10:06 pmYOW-MDW
17h 11m2 stops
10:19 am - 5:33 amMDW-YOW
18h 14m2 stops
$1,043WestJet
Find Deal
Fri, Dec 27 - Mon, Jan 6
5:00 pm - 6:34 pmYOW-ORD
2h 34mnonstop
7:26 am - 10:31 amORD-YOW
2h 05mnonstop
$406United Airlines
Find Deal
Fri, Feb 14 - Mon, Feb 17
5:00 pm - 6:38 pmYOW-ORD
2h 38mnonstop
6:08 pm - 9:24 pmORD-YOW
2h 16mnonstop
$419United Airlines
Find Deal
Fri, Jan 24 - Sun, Jan 26
5:00 pm - 6:38 pmYOW-ORD
2h 38mnonstop
6:08 pm - 9:24 pmORD-YOW
2h 16mnonstop
$420United Airlines
Find Deal
Fri, Feb 7 - Sun, Feb 9
5:00 pm - 6:38 pmYOW-ORD
2h 38mnonstop
7:26 am - 10:31 amORD-YOW
2h 05mnonstop
$438United Airlines
Find Deal
Sat, Jan 18 - Thu, Feb 13
5:00 pm - 6:38 pmYOW-ORD
2h 38mnonstop
1:55 pm - 5:06 pmORD-YOW
2h 11mnonstop
$477Air Canada
Find Deal
Wed, Jan 15 - Sat, Jan 18
5:00 pm - 6:38 pmYOW-ORD
2h 38mnonstop
1:55 pm - 5:06 pmORD-YOW
2h 11mnonstop
$506Air Canada
Find Deal
Thu, Jan 23 - Thu, Jan 30
5:25 pm - 6:54 pmYOW-ORD
2h 29mnonstop
6:19 pm - 9:35 pmORD-YOW
2h 16mnonstop
$507United Airlines
Find Deal
Wed, Apr 9 - Fri, Apr 11
5:25 pm - 6:54 pmYOW-ORD
2h 29mnonstop
6:19 pm - 9:35 pmORD-YOW
2h 16mnonstop
$508Air Canada
Find Deal
Wed, Apr 9 - Fri, Apr 11
6:33 am - 8:02 amYOW-ORD
2h 29mnonstop
6:19 pm - 9:35 pmORD-YOW
2h 16mnonstop
$554United Airlines
Find Deal
Thu, Apr 10 - Mon, Apr 21
6:33 am - 8:02 amYOW-ORD
2h 29mnonstop
6:19 pm - 9:35 pmORD-YOW
2h 16mnonstop
$623United Airlines
Find Deal
Sun, Apr 27 - Sat, May 3

WestJet flights from Ottawa to Illinois

Our best WestJet deals on Ottawa to Illinois flight tickets
WestJet
Jan 23
YOW5:55 amOttawa
11h 18m
2 stops
ORD4:13 pmChicago O'Hare Intl
Jan 30
ORD1:40 pmChicago O'Hare Intl
9h 30m
2 stops
YOW12:10 amOttawa
WestJet
Jan 24
YOW5:55 amOttawa
8h 00m
2 stops
ORD12:55 pmChicago O'Hare Intl
Jan 26
ORD1:40 pmChicago O'Hare Intl
9h 30m
2 stops
YOW12:10 amOttawa
WestJet
Apr 3
YOW6:15 amOttawa
10h 41m
1 stop
ORD3:56 pmChicago O'Hare Intl
Apr 6
ORD4:45 pmChicago O'Hare Intl
25h 34m
2 stops
YOW7:19 pmOttawa

Air Canada flights from Ottawa to Illinois

Our best Air Canada deals on Ottawa to Illinois flight tickets
Air Canada
Apr 9
YOW5:25 pmOttawa
2h 29m
ORD6:54 pmChicago O'Hare Intl
Apr 11
ORD7:00 amChicago O'Hare Intl
4h 17m
1 stop
YOW12:17 pmOttawa
Air Canada
Apr 27
YOW8:25 amOttawa
5h 46m
1 stop
ORD1:11 pmChicago O'Hare Intl
May 3
ORD3:40 pmChicago O'Hare Intl
5h 27m
1 stop
YOW10:07 pmOttawa
Air Canada
Jan 23
YOW11:00 amOttawa
4h 45m
1 stop
ORD2:45 pmChicago O'Hare Intl
Jan 30
ORD7:05 amChicago O'Hare Intl
5h 18m
1 stop
YOW1:23 pmOttawa

See travel insights to Illinois from

How to get the cheapest flight ticket from Ottawa to Illinois

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 Illinois?

The cheapest month to fly to Illinois from Ottawa is in April. Flight prices, which tend to average around $305, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of April, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $350.

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from Ottawa to Illinois is on a Wednesday when prices can be found for as low as $340. Flights from Ottawa to Illinois on a Friday will generally be more expensive and average around $530. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is in the evening. Flights from Ottawa to Illinois during this time can be as low as $353. Flights in the afternoon are often more expensive with an average ticket price of $485.

What is the cheapest Ottawa to Illinois flight route?

Fly from Ottawa to Chicago O'Hare Intl for the best Ottawa - Illinois flight prices

How far in advance should I book a flight to Illinois?

The best time to book a flight to Illinois from Ottawa is 52 days out, which is when prices tend to be around $535. In the past 72 hours, momondo users found flights from Ottawa to Illinois for as low as $291.

What cabin class options are available on Ottawa to Illinois flights?

There are 4 cabin classes available to choose from on Ottawa to Illinois 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 Illinois flights?

You could potentially save up to 27% on your flight if you consider stops on a Ottawa to Illinois flight.

Cheap Ottawa to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ottawa to Illinois

Best Price Found

$165

Fastest flight time

2h 08m

Direct flights

Mon, Tue, Thu, Fri, Sat and Sun

Airports in Illinois

3 airports
The best one-way flight to Illinois from Ottawa in the past 72 hours is $165. The best round-trip flight deal from Ottawa to Illinois found on momondo in the last 72 hours is $278.
The fastest flight from Ottawa to Illinois takes 2h 08m
Direct flights go from Ottawa to Illinois on Monday, Tuesday, Thursday, Friday, Saturday and Sunday. Airlines offering direct flights are: United Airlines and Air Canada.
There are 3 airports near Illinois: Chicago O'Hare Intl (ORD), Chicago Midway (MDW), Lambert-St Louis (STL)

  • When did momondo last update prices for flights from Ottawa Airport to Illinois?

    Prices for flights from Ottawa Airport to Illinois were last updated today.

  • How many operators does momondo search for flights from Ottawa Airport to Illinois?

  • How old do you have to be to fly from Ottawa Airport to Illinois?

    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 Illinois.

  • What documentation or ID do you need to fly to Illinois?

    The travel and health documents required for your trip to Illinois 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 Illinois. 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 Illinois?


Best airlines flying from Ottawa to Illinois

Compare and see reviews for airlines that fly from Ottawa to Illinois with momondo
Airline
Rating
Free Cancellation
Price
Porter AirlinesPriceFrom $266Free CancellationRating
7.9
282 reviews
Search Porter Airlines flights
Air CanadaPriceFrom $423Free CancellationRating
7.0
8,430 reviews
Search Air Canada flights
United AirlinesPriceFrom $426Free CancellationRating
7.4
9,003 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Ottawa to Illinois?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Ottawa to Illinois for you.

Can I find flights from Ottawa to Illinois with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Ottawa to Illinois flights to just show those with flexible booking policies.

How can momondo help me find flights from Ottawa to Illinois?

momondo provides multiple filters to help you find the best flight to Illinois from Ottawa. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Ottawa to Illinois right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Illinois from Ottawa. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.


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