How many flights depart from Ottawa to Illinois on average per week?

As of October 2026, there are 84 flights per week flying from Ottawa to Illinois. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.

What is the cheapest airline that flies from Ottawa to Illinois?

Porter Airlines is the most popular carrier operating from Ottawa to Illinois

What airlines fly to Illinois?

Air Canada, United Airlines and American Airlines are the top three most popular airlines that fly to Illinois from Ottawa according to our data. Air Canada is the first choice among our users, with 67% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 3 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

How many flights depart from Ottawa to Illinois on average per day?

12 flights are operational daily from Ottawa to Illinois as of October 2026. The most popular departure time for this route is 6:00AM, with 66% of flights per day taking off at noon.

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?

As of October 2026, there are 2 operators available to choose from 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.

$219 Cheap Flights from Ottawa to Illinois in 2026/27

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Find the cheapest flights from Ottawa to Illinois

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Cheap round-trip flights

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12:10 pm - 3:38 pmYOW Ottawa-ORD Chicago O'Hare Intl

4h 28m1 stop Toronto Pearson Intl

1:55 pm - 7:52 pmORD Chicago O'Hare Intl-YOW Ottawa

4h 57m1 stop Toronto Island

$251Air Canada

Sat, Nov 21 - Sun, Nov 22

9:00 am - 5:43 pmYOW Ottawa-ORD Chicago O'Hare Intl

9h 43m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

1:55 pm - 7:52 pmORD Chicago O'Hare Intl-YOW Ottawa

4h 57m1 stop Toronto Island

$269Air Canada

Sat, Nov 21 - Sun, Nov 22

12:15 pm - 5:40 pmYOW Ottawa-ORD Chicago O'Hare Intl

6h 25m1 stop Toronto Island

12:15 pm - 6:12 pmORD Chicago O'Hare Intl-YOW Ottawa

4h 57m1 stop Toronto Island

$381Porter Airlines

Fri, Nov 27 - Mon, Nov 30

12:15 pm - 5:40 pmYOW Ottawa-ORD Chicago O'Hare Intl

6h 25m1 stop Toronto Island

12:15 pm - 6:12 pmORD Chicago O'Hare Intl-YOW Ottawa

4h 57m1 stop Toronto Island

$381Porter Airlines

Fri, Nov 27 - Sun, Nov 29

12:15 pm - 5:40 pmYOW Ottawa-ORD Chicago O'Hare Intl

6h 25m1 stop Toronto Island

12:15 pm - 6:13 pmORD Chicago O'Hare Intl-YOW Ottawa

4h 58m1 stop Toronto Island

$381Porter Airlines

Fri, Nov 27 - Thu, Dec 3

10:50 am - 3:02 pmYOW Ottawa-ORD Chicago O'Hare Intl

5h 12m1 stop Montreal Pierre Elliott Trudeau Intl

1:55 pm - 7:52 pmORD Chicago O'Hare Intl-YOW Ottawa

4h 57m1 stop Toronto Island

$643Air Canada

Thu, Nov 12 - Sun, Nov 15

4:46 pm - 6:30 pmYOW Ottawa-ORD Chicago O'Hare Intl

2h 44mnonstop

1:55 pm - 7:52 pmORD Chicago O'Hare Intl-YOW Ottawa

4h 57m1 stop Toronto Island

$668Air Canada

Sat, Nov 7 - Sun, Nov 8

6:00 am - 6:36 pmYOW Ottawa-ORD Chicago O'Hare Intl

13h 36m1 stop Newark

6:00 am - 9:50 pmORD Chicago O'Hare Intl-YOW Ottawa

14h 50m2 stops Newark Toronto Pearson Intl

$716United Airlines

Fri, Dec 25 - Thu, Dec 31

6:00 am - 8:01 pmYOW Ottawa-ORD Chicago O'Hare Intl

15h 01m2 stops Toronto Pearson Intl Newark

6:00 am - 9:50 pmORD Chicago O'Hare Intl-YOW Ottawa

14h 50m2 stops Newark Toronto Pearson Intl

$724United Airlines

Fri, Dec 25 - Thu, Dec 31

6:00 am - 10:15 pmYOW Ottawa-ORD Chicago O'Hare Intl

17h 15m1 stop Newark

7:00 am - 9:50 pmORD Chicago O'Hare Intl-YOW Ottawa

13h 50m2 stops Newark Toronto Pearson Intl

$725United Airlines

Fri, Dec 25 - Thu, Dec 31

Cheap last minute flights

Enter your travel dates to find the best prices.

7:00 am - 12:44 pmYOW Ottawa-ORD Chicago O'Hare Intl

6h 44m1 stop Toronto Pearson Intl

12:15 pm - 6:12 pmORD Chicago O'Hare Intl-YOW Ottawa

4h 57m1 stop Toronto Island

$691Porter Airlines

Sat, Oct 17 - Fri, Nov 13

6:25 am - 7:44 amYOW Ottawa-ORD Chicago O'Hare Intl

2h 19mnonstop

1:55 pm - 7:52 pmORD Chicago O'Hare Intl-YOW Ottawa

4h 57m1 stop Toronto Island

$759Air Canada

Sat, Oct 17 - Fri, Nov 13

10:37 am - 12:00 pmYOW Ottawa-ORD Chicago O'Hare Intl

2h 23mnonstop

10:57 am - 2:09 pmORD Chicago O'Hare Intl-YOW Ottawa

2h 12mnonstop

$765Air Canada

Sat, Oct 17 - Fri, Nov 13

2:10 pm - 7:31 amYOW Ottawa-ORD Chicago O'Hare Intl

42h 21m2 stops Newark Orlando

6:20 pm - 8:07 pmORD Chicago O'Hare Intl-YOW Ottawa

24h 47m1 stop Toronto Island

$786Multiple Airlines

Sat, Oct 17 - Fri, Nov 13

9:15 am - 2:35 pmYOW Ottawa-MDW Chicago Midway

6h 20m1 stop Toronto Island

11:45 am - 7:07 pmMDW Chicago Midway-YOW Ottawa

6h 22m1 stop Toronto Island

$813Porter Airlines

Sat, Oct 17 - Sat, Oct 24

6:25 am - 7:44 amYOW Ottawa-ORD Chicago O'Hare Intl

2h 19mnonstop

2:00 pm - 7:52 pmORD Chicago O'Hare Intl-YOW Ottawa

4h 52m1 stop Toronto Island

$833Air Canada

Fri, Oct 16 - Mon, Oct 19

6:25 am - 7:44 amYOW Ottawa-ORD Chicago O'Hare Intl

2h 19mnonstop

6:21 pm - 9:35 pmORD Chicago O'Hare Intl-YOW Ottawa

2h 14mnonstop

$833Air Canada

Sat, Oct 17 - Mon, Oct 19

7:00 am - 12:45 pmYOW Ottawa-ORD Chicago O'Hare Intl

6h 45m1 stop Toronto Pearson Intl

8:06 am - 2:55 pmORD Chicago O'Hare Intl-YOW Ottawa

5h 49m1 stop Toronto Pearson Intl

$840American Airlines

Fri, Oct 16 - Mon, Oct 19

10:40 am - 2:35 pmYOW Ottawa-MDW Chicago Midway

4h 55m1 stop Toronto Island

3:20 pm - 9:42 pmMDW Chicago Midway-YOW Ottawa

5h 22m1 stop Toronto Island

$843Porter Airlines

Fri, Oct 16 - Mon, Oct 19

6:25 am - 7:44 amYOW Ottawa-ORD Chicago O'Hare Intl

2h 19mnonstop

9:35 pm - 9:11 amORD Chicago O'Hare Intl-YOW Ottawa

10h 36m1 stop Newark

$1,101United Airlines

Fri, Oct 16 - Mon, Oct 19

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Air Canada flights from Ottawa to Illinois

Our best Air Canada deals on Ottawa to Illinois flight tickets

Air Canada

Nov 21

YOW12:10 pmOttawa

4h 28m

1 stop

ORD3:38 pmChicago O'Hare Intl

Nov 22

ORD1:55 pmChicago O'Hare Intl

4h 57m

1 stop

YOW7:52 pmOttawa

$251

Air Canada

Nov 21

YOW9:00 amOttawa

9h 43m

2 stops

ORD5:43 pmChicago O'Hare Intl

Nov 22

ORD1:55 pmChicago O'Hare Intl

4h 57m

1 stop

YOW7:52 pmOttawa

$269

Air Canada

Oct 23

YOW6:25 amOttawa

2h 19m

ORD7:44 amChicago O'Hare Intl

Oct 26

ORD1:55 pmChicago O'Hare Intl

4h 57m

1 stop

YOW7:52 pmOttawa

$746

Porter Airlines flights from Ottawa to Illinois

Our best Porter Airlines deals on Ottawa to Illinois flight tickets

Porter Airlines

Nov 27

YOW12:15 pmOttawa

6h 25m

1 stop

ORD5:40 pmChicago O'Hare Intl

Dec 3

ORD12:15 pmChicago O'Hare Intl

4h 58m

1 stop

YOW6:13 pmOttawa

$381

Porter Airlines

Nov 12

YOW12:15 pmOttawa

6h 25m

1 stop

ORD5:40 pmChicago O'Hare Intl

Nov 15

ORD12:15 pmChicago O'Hare Intl

4h 57m

1 stop

YOW6:12 pmOttawa

$382

Porter Airlines

Nov 27

YOW8:25 amOttawa

4h 10m

1 stop

ORD11:35 amChicago O'Hare Intl

Dec 4

ORD12:15 pmChicago O'Hare Intl

4h 58m

1 stop

YOW6:13 pmOttawa

$383

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OttawaChicago

YOW Ottawa - ORD Chicago O'Hare Intl

YOWORD

Ottawa

Sat 11/21

12:10 pm-3:38 pm

1 stop4h 28m

Chicago O'Hare Intl

Sun 11/22

1:55 pm-7:52 pm

1 stop4h 57m

$251

OttawaChicago

YOW Ottawa - ORD Chicago O'Hare Intl

YOWORD

Ottawa

Sat 11/21

9:00 am-5:43 pm

2 stops9h 43m

Chicago O'Hare Intl

Sun 11/22

1:55 pm-7:52 pm

1 stop4h 57m

$269

OttawaChicago

YOW Ottawa - ORD Chicago O'Hare Intl

YOWORD

Ottawa

Fri 11/27

12:15 pm-5:40 pm

1 stop6h 25m

Chicago O'Hare Intl

Mon 11/30

12:15 pm-6:12 pm

1 stop4h 57m

$381

OttawaChicago

YOW Ottawa - ORD Chicago O'Hare Intl

YOWORD

Ottawa

Fri 11/27

12:15 pm-5:40 pm

1 stop6h 25m

Chicago O'Hare Intl

Sun 11/29

12:15 pm-6:12 pm

1 stop4h 57m

$381

OttawaChicago

YOW Ottawa - ORD Chicago O'Hare Intl

YOWORD

Ottawa

Fri 11/27

12:15 pm-5:40 pm

1 stop6h 25m

Chicago O'Hare Intl

Thu 12/3

12:15 pm-6:13 pm

1 stop4h 58m

$381

OttawaChicago

YOW Ottawa - ORD Chicago O'Hare Intl

YOWORD

Ottawa

Thu 11/12

10:50 am-3:02 pm

1 stop5h 12m

Chicago O'Hare Intl

Sun 11/15

1:55 pm-7:52 pm

1 stop4h 57m

$643

Quickest round-trip

OttawaChicago

YOW Ottawa - ORD Chicago O'Hare Intl

YOWORD

Ottawa

Sat 11/7

4:46 pm-6:30 pm

Nonstop2h 44m

Chicago O'Hare Intl

Sun 11/8

1:55 pm-7:52 pm

1 stop4h 57m

$668

OttawaChicago

YOW Ottawa - ORD Chicago O'Hare Intl

YOWORD

Ottawa

Fri 12/25

6:00 am-6:36 pm

1 stop13h 36m

Chicago O'Hare Intl

Thu 12/31

6:00 am-9:50 pm

2 stops14h 50m

$716

OttawaChicago

YOW Ottawa - ORD Chicago O'Hare Intl

YOWORD

Ottawa

Fri 12/25

6:00 am-8:01 pm

2 stops15h 01m

Chicago O'Hare Intl

Thu 12/31

6:00 am-9:50 pm

2 stops14h 50m

$724

OttawaChicago

YOW Ottawa - ORD Chicago O'Hare Intl

YOWORD

Ottawa

Fri 12/25

6:00 am-10:15 pm

1 stop17h 15m

Chicago O'Hare Intl

Thu 12/31

7:00 am-9:50 pm

2 stops13h 50m

$725

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Other information

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Ottawa is in March. Flight prices, which tend to average around $406, 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 March, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $411.

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

The cheapest day to depart from Ottawa to Illinois is on a Saturday when prices can be found for as low as $583. Flights from Ottawa to Illinois on a Sunday will generally be more expensive and average around $744. 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 afternoon. Flights from Ottawa to Illinois during this time can be as low as $588. Flights in the morning are often more expensive with an average ticket price of $669.

What is the cheapest Ottawa to Illinois flight route?

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

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

There are 3 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 40% 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	$219
Fastest flight time	2h 19m
Direct flights	Every day
Airports in Illinois	98 airports

The best one-way flight to Illinois from Ottawa in the past 72 hours is $219. The best round-trip flight deal from Ottawa to Illinois found on momondo in the last 72 hours is $251.

The fastest flight from Ottawa to Illinois takes 2h 19m

Direct flights go from Ottawa to Illinois every day.

There are 98 airports in Illinois. From Ottawa there are direct flights to Chicago O'Hare Intl (ORD).

Search flight deals

Frequently asked questions about flying from Ottawa to Illinois

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?
As of October 2026, there are 2 operators available to choose from 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?
momondo data reveals that the most frequently booked plane model on the route from Ottawa to Illinois is Embraer 175 (Enhanced Winglets), representing 50.96% of all bookings. The subsequent popular models are Airbus A319 at 22.12%, Embraer 195 E2 at 12.82%, and Airbus A321-100/200 at 2.24%.

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
United Airlines	PriceFrom $521	Free Cancellation	Rating 7.4 10,352 reviews		Search United Airlines flights
Air Canada	PriceFrom $653	Free Cancellation	Rating 7.1 11,764 reviews		Search Air Canada 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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Popular cities in Illinois

Flights to New Yorkfrom $80

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Flights to San Franciscofrom $44

Flights to Chicagofrom $60

Flights to Las Vegasfrom $50

Flights to Washington, D.C.from $46

Flights to Fort Lauderdalefrom $58

Flights to Bostonfrom $90

Flights to Atlantafrom $52

Flights to Dallasfrom $48

Cheap flights from Ottawa to Illinois from $219

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 11/10. 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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Air Canada flights from Ottawa to Illinois

Our best Air Canada deals on Ottawa to Illinois flight tickets

Porter Airlines flights from Ottawa to Illinois

Our best Porter Airlines deals on Ottawa to Illinois flight tickets

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See travel insights to Illinois from

How to get the cheapest flight ticket from Ottawa to Illinois

What is the cheapest month to fly to Illinois?

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

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

What is the cheapest Ottawa to Illinois flight route?

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

Can stopping save me money on Ottawa to Illinois flights?

What is the cheapest airline that flies from Ottawa to Illinois?

What airlines fly to Illinois?

How many flights depart from Ottawa to Illinois on average per day?

How many flights depart from Ottawa to Illinois on average per week?

Cheap Ottawa to Illinois flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Airports in Illinois

Frequently asked questions about flying 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

Why use momondo?

An easier way to manage your Illinois trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Illinois

Popular cities in Illinois

Popular flights according to clicks in the last 7 days on momondo

Ottawa flight routes

According to popular flight searches on momondo this year

Illinois flight routes

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