How long is the flight from Illinois to Ottawa?

Airlines like WestJet, Porter Airlines, and United Airlines fly from Illinois to Ottawa in about 3h 42m. The time it takes to get you to your destination can typically vary by up to 7h 23m. Illinois and Ottawa are separated by a distance of 1048 km. Both multi-stop and direct flights can be found to your destination and back.

In terms of precipitation, rainfall in Ottawa ranges from 50.0 - 93.0 mm per month. June is typically the wettest month, when rainfall can reach 93.0 mm. February is typically the driest time to visit Ottawa when rainfall is around 50.0 mm.

If weather is an important factor for your trip to Ottawa, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -10.0 C).

What are the most popular routes from Illinois to Ottawa?

When deciding which route to take from Illinois to Ottawa consider Chicago O'Hare Intl - Ottawa, Chicago Midway - Ottawa or Bloomington-Normal - Ottawa as they are the most popular.

What are the cheapest flights from Illinois to Ottawa?

The cheapest flight price from Illinois to Ottawa is C$ 465. On average you can expect to pay C$ 499. The most popular route, (Chicago O'Hare Intl - Ottawa), can usually be booked for C$ 547.

What are the most reliable airlines from Illinois to Ottawa?

No one likes to see their flight delayed. When booking a flight from Illinois to Ottawa consider choosing Republic Airways (76%), Air Canada (72%) or Air New Zealand (72%) as they are the most reliable in getting you off to your destination on time.

What airport do you fly into for flights to Ottawa from Illinois?

Most people fly into Ottawa (YOW) if they book a flight to Ottawa from Illinois. Ottawa is conveniently located just 10.6 km from Ottawa’s city centre.

Can I find deals for flights from Illinois to Ottawa that include hotel bookings?

Yes. In addition to deals on Illinois to Ottawa flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Illinois to Ottawa?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Ottawa.

Can I find deals for business class flights from Illinois to Ottawa?

Yes. Cheapflights offers flight deals from Illinois to Ottawa by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

C$ 201+ Cheap Flights from Illinois to Ottawa

Cheap flight deals from Illinois to Ottawa

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

Cheapest flights from Illinois to Ottawa
Explore the most affordable flight options available from Illinois to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 September 2026.

Sat 3/109:55 a.m. -

1 stop6h 40m

Sat 10/106:55 a.m. -

2 stops14h 17m

Deal found 5/9C$ 473

Mon 19/108:04 a.m. -

2 stops15h 16m

Fri 23/107:20 a.m. -

1 stop10h 20m

Deal found 4/9C$ 483

Sun 4/105:30 p.m. -

1 stop11h 05m

Sun 11/107:20 a.m. -

1 stop10h 20m

Deal found 5/9C$ 492

Mon 19/105:30 p.m. -

1 stop11h 05m

Fri 23/107:20 a.m. -

1 stop10h 20m

Deal found 4/9C$ 516

Mon 28/95:30 p.m. -

1 stop11h 05m

Sun 11/107:20 a.m. -

1 stop10h 20m

Deal found 5/9C$ 523

Fri 23/103:20 p.m. -

1 stop3h 42m

Tue 27/107:05 a.m. -

2 stops17h 42m

Deal found 8/9C$ 535

Thu 22/103:20 p.m. -

1 stop3h 42m

Mon 26/107:05 a.m. -

2 stops35h 22m

Deal found 9/9C$ 545

Wed 21/103:20 p.m. -

1 stop3h 42m

Sat 24/109:15 a.m. -

1 stop6h 20m

Deal found 8/9C$ 547

Fri 23/105:30 p.m. -

1 stop11h 05m

Tue 27/107:05 a.m. -

2 stops30h 46m

Deal found 8/9C$ 547

Fri 25/93:20 p.m. -

1 stop20h 32m

Mon 28/98:00 a.m. -

1 stop4h 00m

Deal found 5/9C$ 553

Wed 18/116:20 p.m. -

1 stop12h 39m

Thu 10/127:05 a.m. -

1 stop30h 45m

Deal found 5/9C$ 571

Sun 4/1011:45 a.m. -

1 stop7h 17m

Sun 11/1010:40 a.m. -

1 stop4h 55m

Deal found 5/9C$ 579

Best flights from Illinois to Ottawa
Discover carefully curated flight deals from Illinois to Ottawa that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 9 September 2026.

Mon 19/105:30 p.m. -

1 stop11h 05m

Fri 23/107:20 a.m. -

1 stop10h 20m

Deal found 4/9C$ 516

Thu 22/103:20 p.m. -

1 stop3h 42m

Mon 26/107:05 a.m. -

2 stops35h 22m

Deal found 9/9C$ 545

Mon 5/103:20 p.m. -

1 stop3h 42m

Mon 12/108:00 a.m. -

1 stop4h 00m

Deal found 6/9C$ 585

Sun 7/212:40 p.m. -

1 stop8h 16m

Wed 10/29:45 a.m. -

2 stops12h 45m

Deal found 8/9C$ 1,133

Tue 13/101:55 p.m. -

Nonstop2h 21m

Sat 17/105:10 a.m. -

1 stop4h 50m

Deal found 6/9C$ 1,173

Sat 3/1011:45 a.m. -

1 stop6h 22m

Sat 10/1010:40 a.m. -

1 stop4h 55m

Deal found 6/9C$ 611

Thu 22/103:20 p.m. -

1 stop19h 07m

Thu 29/108:00 a.m. -

2 stops16h 47m

Deal found 6/9C$ 658

Wed 21/103:20 p.m. -

1 stop3h 42m

Sat 24/109:15 a.m. -

1 stop6h 20m

Deal found 6/9C$ 612

Sun 4/103:20 p.m. -

1 stop5h 22m

Mon 5/108:00 a.m. -

1 stop4h 00m

Deal found 7/9C$ 640

Sat 3/1011:45 a.m. -

1 stop6h 22m

Sat 10/106:25 p.m. -

2 stops16h 07m

Deal found 4/9C$ 783

Tue 13/1011:45 a.m. -

1 stop5h 07m

Sat 17/109:15 a.m. -

1 stop6h 20m

Deal found 6/9C$ 718

Sat 19/911:45 a.m. -

1 stop6h 22m

Tue 22/92:10 p.m. -

2 stops28h 41m

Deal found 5/9C$ 819

Fri 2/103:20 p.m. -

1 stop5h 22m

Mon 5/108:15 p.m. -

3 stops19h 20m

Deal found 7/9C$ 820

Wed 7/108:05 a.m. -

2 stops15h 15m

Wed 14/106:55 a.m. -

2 stops14h 35m

Deal found 9/9C$ 1,175

Wed 21/108:06 a.m. -

1 stop5h 49m

Sat 24/1010:00 a.m. -

1 stop5h 20m

Deal found 4/9C$ 831

Thu 22/1012:30 p.m. -

3 stops10h 50m

Sun 25/1012:15 p.m. -

1 stop6h 25m

Deal found 4/9C$ 862

Thu 22/1010:40 a.m. -

Nonstop2h 19m

Thu 29/106:15 a.m. -

Nonstop2h 45m

Deal found 6/9C$ 1,332

Wed 21/105:29 p.m. -

2 stops23h 06m

Sat 24/106:55 a.m. -

2 stops11h 03m

Deal found 4/9C$ 1,230

Sun 18/1010:40 a.m. -

Nonstop2h 19m

Wed 21/106:25 a.m. -

Nonstop2h 19m

Deal found 6/9C$ 1,332

Sun 7/25:56 p.m. -

Nonstop2h 27m

Wed 10/25:10 a.m. -

1 stop4h 58m

Deal found 8/9C$ 1,246

Wed 23/129:47 p.m. -

1 stop14h 24m

Thu 24/124:42 p.m. -

Nonstop2h 48m

Deal found 8/9C$ 1,267

Sat 5/124:29 p.m. -

2 stops31h 15m

Wed 9/125:30 a.m. -

2 stops30h 54m

Deal found 5/9C$ 1,927

Find flight deals from Illinois to Ottawa

Round-trip from	C$ 473
One-way from	C$ 201
Popular in	February
Cheapest in	April
Average price	C$ 990
Good one-way deal	C$ 465 or less

3/10-10/10
3 total stops
20h 57m total
Illinois to Ottawa

Search Deals

10/10-31/12
1 total stop
11h 35m total
Illinois to Ottawa

Search Deals

Highest demand for flights based on searches. 2% potential increase in price (C$ 39 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (C$ 36 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Price to beat on a one-way flight from Illinois to Ottawa.

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoOttawa

MDW Chicago Midway - YOW Ottawa

MDWYOW

Chicago Midway

Sat 10/10

11:45 a.m.-12:20 a.m.

1 stop11h 35m

Ottawa

Wed 31/12

12:00 a.m.-11:00 p.m.

Nonstop0h 00m

C$ 201

Quickest round-trip

ChicagoOttawa

MDW Chicago Midway - YOW Ottawa

MDWYOW

Chicago Midway

Thu 22/10

3:20 p.m.-8:02 p.m.

1 stop3h 42m

Ottawa

Wed 31/12

12:00 a.m.-11:00 p.m.

Nonstop0h 00m

C$ 210

ChicagoOttawa

ORD Chicago O'Hare Intl - YOW Ottawa

ORDYOW

Chicago O'Hare Intl

Sun 6/12

6:20 p.m.-1:14 p.m.

1 stop17h 54m

Ottawa

Wed 31/12

12:00 a.m.-11:00 p.m.

Nonstop0h 00m

C$ 226

ChicagoOttawa

ORD Chicago O'Hare Intl - YOW Ottawa

ORDYOW

Chicago O'Hare Intl

Wed 7/10

7:11 a.m.-8:00 p.m.

2 stops11h 49m

Ottawa

Wed 31/12

12:00 a.m.-11:00 p.m.

Nonstop0h 00m

C$ 256

ChicagoOttawa

MDW Chicago Midway - YOW Ottawa

MDWYOW

Chicago Midway

Tue 29/9

11:45 a.m.-5:52 p.m.

1 stop5h 07m

Ottawa

Wed 31/12

12:00 a.m.-11:00 p.m.

Nonstop0h 00m

C$ 265

ChicagoOttawa

ORD Chicago O'Hare Intl - YOW Ottawa

ORDYOW

Chicago O'Hare Intl

Tue 29/9

8:03 a.m.-2:55 p.m.

1 stop5h 52m

Ottawa

Wed 31/12

12:00 a.m.-11:00 p.m.

Nonstop0h 00m

C$ 290

ChicagoOttawa

ORD Chicago O'Hare Intl - YOW Ottawa

ORDYOW

Chicago O'Hare Intl

Tue 29/9

5:30 p.m.-5:35 a.m.

1 stop11h 05m

Ottawa

Wed 31/12

12:00 a.m.-11:00 p.m.

Nonstop0h 00m

C$ 303

ChicagoOttawa

ORD Chicago O'Hare Intl - YOW Ottawa

ORDYOW

Chicago O'Hare Intl

Sun 20/9

7:11 a.m.-3:07 p.m.

1 stop30h 56m

Ottawa

Wed 31/12

12:00 a.m.-11:00 p.m.

Nonstop0h 00m

C$ 310

ChicagoOttawa

ORD Chicago O'Hare Intl - YOW Ottawa

ORDYOW

Chicago O'Hare Intl

Tue 13/10

8:04 a.m.-8:00 p.m.

2 stops34h 56m

Ottawa

Wed 31/12

12:00 a.m.-11:00 p.m.

Nonstop0h 00m

C$ 320

ChicagoOttawa

ORD Chicago O'Hare Intl - YOW Ottawa

ORDYOW

Chicago O'Hare Intl

Sat 17/10

9:00 a.m.-5:35 a.m.

2 stops19h 35m

Ottawa

Wed 31/12

12:00 a.m.-11:00 p.m.

Nonstop0h 00m

C$ 328

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/9

Showing 1-10 of 36 resultsSorted by cheapest first

Best time to book a flight from Illinois to Ottawa

Have a flexible travel schedule? Discover the best time to fly to Ottawa from Illinois with our price prediction graph.

ORD-YOW

MDW-YOW

BMI-YOW

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Ottawa

USIL-YOW

ORD-YOW

MDW-YOW

BMI-YOW

What is the cheapest month to book a flight from Illinois to Ottawa?

Currently, April is the cheapest month in which you can book a flight from Illinois to Ottawa (average of C$ 551). Flying from Illinois to Ottawa in June is currently the most expensive (average of C$ 1,153). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IL to YOW?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Ottawa as you normally would.

Weekly flight availability from Illinois to Ottawa

The most flights from USIL to YOW are scheduled on a Tuesday (11 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (10 on average).

How much does it cost to fly round-trip from Illinois to Ottawa?

Airfare is below average for this route at the moment.

Illinois to Ottawa flights typically cost between C$ 710 and C$ 902 in October.
The cheapest round-trip price found within the last 5 days was C$ 473 on Multiple Airlines (3 Oct-10 Oct).

Related info for your journey

What airport do you fly into for flights to Ottawa from Illinois?
Most people fly into Ottawa (YOW) if they book a flight to Ottawa from Illinois. Ottawa is conveniently located just 10.6 km from Ottawa’s city centre.
How long is the flight from Illinois to Ottawa?
Airlines like WestJet, Porter Airlines, and United Airlines fly from Illinois to Ottawa in about 3h 42m. The time it takes to get you to your destination can typically vary by up to 7h 23m. Illinois and Ottawa are separated by a distance of 1048 km. Both multi-stop and direct flights can be found to your destination and back.
What are the most popular routes from Illinois to Ottawa?
When deciding which route to take from Illinois to Ottawa consider Chicago O'Hare Intl - Ottawa, Chicago Midway - Ottawa or Bloomington-Normal - Ottawa as they are the most popular.
What are the most reliable airlines from Illinois to Ottawa?
No one likes to see their flight delayed. When booking a flight from Illinois to Ottawa consider choosing Republic Airways (76%), Air Canada (72%) or Air New Zealand (72%) as they are the most reliable in getting you off to your destination on time.
What are the cheapest flights from Illinois to Ottawa?
The cheapest flight price from Illinois to Ottawa is C$ 465. On average you can expect to pay C$ 499. The most popular route, (Chicago O'Hare Intl - Ottawa), can usually be booked for C$ 547.
Can I find deals for flights from Illinois to Ottawa that include hotel bookings?
Yes. In addition to deals on Illinois to Ottawa flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Illinois to Ottawa?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Ottawa.
Can I find deals for business class flights from Illinois to Ottawa?
Yes. Cheapflights offers flight deals from Illinois to Ottawa by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Illinois to Ottawa?
Currently, April is the cheapest month in which you can book a flight from Illinois to Ottawa (average of C$ 551). Flying from Illinois to Ottawa in June is currently the most expensive (average of C$ 1,153). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Boston to Hamilton flights

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How does Cheapflights help users find flights from Illinois to Ottawa?

When you search for this flight from Illinois to Ottawa, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Illinois to Ottawa?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Illinois to Ottawa.

Can Cheapflights find flights from Illinois to Ottawa with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Illinois to Ottawa, users can toggle the no change fees filter when performing a flight search.

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Cheap flights from Illinois to Ottawa from C$ 201

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Illinois to Ottawa

Cheapest flights from Illinois to OttawaExplore the most affordable flight options available from Illinois to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 September 2026.

Explore the most affordable flight options available from Illinois to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 September 2026.

Best flights from Illinois to OttawaDiscover carefully curated flight deals from Illinois to Ottawa that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 9 September 2026.

Discover carefully curated flight deals from Illinois to Ottawa that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 9 September 2026.

Direct flights from Illinois to OttawaExplore direct flight options from Illinois to Ottawa based on user searches, and compare prices and availability for your desired travel dates. Data last updated 9 September 2026.

Explore direct flight options from Illinois to Ottawa based on user searches, and compare prices and availability for your desired travel dates. Data last updated 9 September 2026.

Last-minute flights from Illinois to OttawaDiscover last-minute flight deals from Illinois to Ottawa. Data last updated 9 September 2026 and is based on user searches.

Discover last-minute flight deals from Illinois to Ottawa. Data last updated 9 September 2026 and is based on user searches.

One-way flights from Illinois to OttawaSearch for one-way flight options from Illinois to Ottawa. Find affordable one-way fares based on user searches. Data last updated 9 September 2026.

Search for one-way flight options from Illinois to Ottawa. Find affordable one-way fares based on user searches. Data last updated 9 September 2026.

Find flight deals from Illinois to Ottawa

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Popular in

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Use the filters below to find and compare flights from Illinois to Ottawa that are best for you.

Best time to book a flight from Illinois to Ottawa

Have a flexible travel schedule? Discover the best time to fly to Ottawa from Illinois with our price prediction graph.

Cheapflights Insights

What is the cheapest month to book a flight from Illinois to Ottawa?

What is the cheapest time of day to fly from IL to YOW?

Find hourly flight availability from Illinois to Ottawa. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 9 September 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Ottawa as you normally would.

Weekly flight availability from Illinois to Ottawa

Explore weekly flight availability from Illinois to Ottawa. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 9 September 2026.

The most flights from USIL to YOW are scheduled on a Tuesday (11 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (10 on average).

How much does it cost to fly round-trip from Illinois to Ottawa?

Airfare is below average for this route at the moment.

Illinois to Ottawa flights typically cost between C$ 710 and C$ 902 in October.The cheapest round-trip price found within the last 5 days was C$ 473 on Multiple Airlines (3 Oct-10 Oct).

Related info for your journey

What airport do you fly into for flights to Ottawa from Illinois?

How long is the flight from Illinois to Ottawa?

What are the most popular routes from Illinois to Ottawa?

What are the most reliable airlines from Illinois to Ottawa?

What are the cheapest flights from Illinois to Ottawa?

Can I find deals for flights from Illinois to Ottawa that include hotel bookings?

How can I find direct flights from Illinois to Ottawa?

Can I find deals for business class flights from Illinois to Ottawa?

What is the cheapest month to book a flight from Illinois to Ottawa?

Travelling to a place near Ottawa?

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Alternative routes for Illinois to Ottawa

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Complete your trip

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Direct flights to Ontario

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Search flights from Illinois to Ottawa by cabin class

Find flights from Illinois to Ottawa, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Illinois and Ottawa flights

Browse other Illinois and Ottawa flight options. Last updated on 9 September 2026.

Other flights to Ottawa

Explore flights to Ottawa departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 9 September 2026.

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Cheapest flights from Illinois to Ottawa
Explore the most affordable flight options available from Illinois to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 September 2026.

Best flights from Illinois to Ottawa
Discover carefully curated flight deals from Illinois to Ottawa that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 9 September 2026.

Direct flights from Illinois to Ottawa
Explore direct flight options from Illinois to Ottawa based on user searches, and compare prices and availability for your desired travel dates. Data last updated 9 September 2026.

Last-minute flights from Illinois to Ottawa
Discover last-minute flight deals from Illinois to Ottawa. Data last updated 9 September 2026 and is based on user searches.

One-way flights from Illinois to Ottawa
Search for one-way flight options from Illinois to Ottawa. Find affordable one-way fares based on user searches. Data last updated 9 September 2026.

Illinois to Ottawa flights typically cost between C$ 710 and C$ 902 in October.
The cheapest round-trip price found within the last 5 days was C$ 473 on Multiple Airlines (3 Oct-10 Oct).