What are the cheapest airlines to fly from Ottawa to Illinois one-way?

The cheapest airline one-way is Porter Airlines, with whom users have recently found tickets for as low as C$ 281. However, be on the lookout for offers from United Airlines and Air Canada, as they are both options that can get you from Ottawa to Illinois for a low price.

What are the most popular routes from Ottawa to Illinois?

Most travellers choose Ottawa - Chicago O'Hare Intl, Ottawa - Chicago Midway or Ottawa - Lambert-St Louis when deciding on the best route from Ottawa to Illinois.

What are the cheapest flights from Ottawa to Illinois?

Looking for the cheapest flight from Ottawa to Illinois? While on average our users pay C$ 1,597, our data indicates the cheapest price to be C$ 297. The most popular route (Ottawa - Chicago O'Hare Intl), is priced around C$ 525.

What are the most reliable airlines from Ottawa to Illinois?

Before booking your flight to Illinois from Ottawa, check out the most reliable airlines to get you to your destination on time: GoJet (100%), Avianca (100%), ANA( 94%).

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

Users have found that booking a flight from Ottawa to Illinois at least 50 days early can save you up to 110% on average compared to booking a flight this week. If booking 50 days before your flight isn’t an option for you, users have found flights from Ottawa to Illinois for as little as C$ 561 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as C$ 790 for flights departing within the next 3 days.

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

April is one of the best times of the year to fly to Illinois from Ottawa. Prices for April average C$ 565 per person but you can even find prices for as low as C$ 342. The most expensive prices can be found in the month of November. Opting for a April flight can save you 20% on your journey compared to booking in November

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

Ottawa (YOW) is the airport you will fly out of if you book a flight from Ottawa to Illinois. It is only a 10.6 km journey to Ottawa (YOW) from Ottawa’s city centre.

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

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

How can I find direct flights from Ottawa to Illinois?

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

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

Yes. Cheapflights offers flight deals from Ottawa to Illinois 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$ 260+ Flights from Ottawa, Canada to Illinois

Find flights from Ottawa to Illinois within your budget

Fly from

Fly to

Route

Depart

Return

Price

OttawaChicago

YOW - MDW

YOWMDW

Ottawa

Thu 9/1

7:00 a.m.-12:10 p.m.

1 stop6h 10m

Chicago Midway

Sun 12/1

1:05 p.m.-8:29 p.m.

1 stop6h 24m

C$ 482

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Mon 13/1

2:50 p.m.-12:39 p.m.

2 stops22h 49m

Chicago O'Hare Intl

Thu 16/1

5:35 a.m.-2:57 p.m.

1 stop8h 22m

C$ 505

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Sat 1/2

2:45 p.m.-6:50 p.m.

1 stop5h 05m

Chicago O'Hare Intl

Wed 5/2

11:35 a.m.-6:58 p.m.

1 stop6h 23m

C$ 550

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Wed 15/1

6:20 a.m.-8:00 a.m.

Nonstop2h 40m

Chicago O'Hare Intl

Sat 18/1

1:55 p.m.-5:06 p.m.

Nonstop2h 11m

C$ 577

OttawaChicago

YOW - MDW

YOWMDW

Ottawa

Fri 13/12

7:00 a.m.-11:10 a.m.

1 stop5h 10m

Chicago Midway

Sun 15/12

5:15 a.m.-2:20 p.m.

1 stop8h 05m

C$ 587

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Mon 6/1

4:10 p.m.-11:40 p.m.

1 stop8h 30m

Lambert-St Louis

Sun 12/1

8:12 a.m.-8:17 p.m.

1 stop11h 05m

C$ 634

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Wed 29/1

5:55 a.m.-4:13 p.m.

2 stops11h 18m

Chicago O'Hare Intl

Fri 31/1

1:40 p.m.-12:10 a.m.

2 stops9h 30m

C$ 732

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Mon 6/1

10:30 a.m.-9:45 p.m.

2 stops12h 15m

Lambert-St Louis

Sun 12/1

6:30 a.m.-10:01 p.m.

2 stops14h 31m

C$ 857

OttawaChicago

YOW - MDW

YOWMDW

Ottawa

Fri 28/2

8:10 p.m.-10:16 a.m.

2 stops15h 06m

Chicago Midway

Mon 3/3

12:44 p.m.-7:19 p.m.

2 stops29h 35m

C$ 1,123

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Thu 12/12

5:55 a.m.-4:30 p.m.

2 stops11h 35m

Chicago O'Hare Intl

Mon 16/12

11:59 a.m.-12:10 a.m.

2 stops11h 11m

C$ 1,141

Flights are sorted by cheapest round-trip flights first.

Deals found on 19/11

Showing 1-10 of 20 results

Cheap flight deals from Ottawa to Illinois

Find flight deals from Ottawa to Illinois

Cheapest flights from Ottawa to Illinois
Explore the most affordable flight options available from Ottawa to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 November 2024.

Thu 26/127:00 a.m.YOW - MDW

1 stop4h 30mPorter Airlines

Wed 1/15:35 p.m.MDW - YOW

1 stop3h 51mPorter Airlines

Deal found 19/11C$ 500

Thu 12/1211:50 a.m.YOW - ORD

3 stops18h 40mMultiple Airlines

Sun 15/129:53 p.m.ORD - YOW

1 stop18h 07mMultiple Airlines

Deal found 19/11C$ 540

Fri 13/127:00 a.m.YOW - MDW

1 stop5h 10mMultiple Airlines

Sun 15/125:15 a.m.MDW - YOW

1 stop8h 05mMultiple Airlines

Deal found 19/11C$ 587

Thu 26/125:30 a.m.YOW - ORD

1 stop4h 27mAir Canada

Mon 6/18:30 p.m.ORD - YOW

1 stop4h 07mAir Canada

Deal found 20/11C$ 595

Sun 15/125:00 p.m.YOW - ORD

Nonstop2h 36mUnited Airlines

Mon 16/127:28 a.m.ORD - YOW

Nonstop2h 03mUnited Airlines

Deal found 19/11C$ 661

Wed 18/1211:25 a.m.YOW - STL

1 stop11h 11mUnited Airlines

Wed 25/128:00 a.m.STL - YOW

2 stops13h 01mUnited Airlines

Deal found 20/11C$ 913

Sat 28/125:55 a.m.YOW - ORD

2 stops16h 22mWestJet

Mon 6/110:30 a.m.ORD - YOW

2 stops12h 40mWestJet

Deal found 19/11C$ 1,072

Wed 20/115:55 a.m.YOW - MDW

2 stops13h 37mWestJet

Wed 27/1112:43 p.m.MDW - YOW

2 stops10h 27mWestJet

Deal found 19/11C$ 1,081

Thu 12/125:55 a.m.YOW - ORD

2 stops11h 35mDelta

Mon 16/1211:59 a.m.ORD - YOW

2 stops11h 11mDelta

Deal found 19/11C$ 1,141

Thu 12/125:55 a.m.YOW - MDW

2 stops12h 06mDelta

Sun 15/126:00 a.m.MDW - YOW

2 stops17h 10mDelta

Deal found 19/11C$ 1,190

Best flights from Ottawa to Illinois
Discover carefully curated flight deals from Ottawa to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 20 November 2024.

Thu 9/17:00 a.m.YOW - MDW

1 stop6h 10mPorter Airlines

Sun 12/11:05 p.m.MDW - YOW

1 stop6h 24mPorter Airlines

Deal found 19/11C$ 482

Mon 13/15:10 p.m.YOW - ORD

2 stops20h 29mMultiple Airlines

Thu 16/15:35 a.m.ORD - YOW

1 stop8h 22mMultiple Airlines

Deal found 20/11C$ 505

Sat 1/22:45 p.m.YOW - ORD

1 stop5h 05mAir Canada

Wed 5/211:35 a.m.ORD - YOW

1 stop6h 23mAir Canada

Deal found 18/11C$ 550

Wed 15/15:00 p.m.YOW - ORD

Nonstop2h 38mUnited Airlines

Sat 18/16:00 a.m.ORD - YOW

1 stop6h 20mUnited Airlines

Deal found 19/11C$ 577

Wed 29/15:55 a.m.YOW - ORD

2 stops11h 18mWestJet

Fri 31/11:40 p.m.ORD - YOW

2 stops9h 30mWestJet

Deal found 19/11C$ 732

Mon 13/15:55 a.m.YOW - MDW

2 stops8h 13mDelta

Thu 16/19:34 a.m.MDW - YOW

2 stops13h 36mDelta

Deal found 20/11C$ 1,117

Fri 13/127:00 a.m.YOW - MDW

1 stop5h 10mMultiple Airlines

Sun 15/125:15 a.m.MDW - YOW

1 stop8h 05mMultiple Airlines

Deal found 19/11C$ 587

Mon 6/14:10 p.m.YOW - STL

1 stop8h 30mMultiple Airlines

Sun 12/18:12 a.m.STL - YOW

1 stop11h 05mMultiple Airlines

Deal found 19/11C$ 634

Mon 6/110:30 a.m.YOW - STL

2 stops12h 15mUnited Airlines

Sun 12/16:30 a.m.STL - YOW

2 stops14h 31mUnited Airlines

Deal found 19/11C$ 857

Fri 28/28:10 p.m.YOW - MDW

2 stops15h 06mWestJet

Mon 3/312:44 p.m.MDW - YOW

2 stops29h 35mWestJet

Deal found 18/11C$ 1,123

Thu 12/125:55 a.m.YOW - ORD

2 stops11h 35mDelta

Mon 16/1211:59 a.m.ORD - YOW

2 stops11h 11mDelta

Deal found 19/11C$ 1,141

Direct flights from Ottawa to Illinois
Explore direct flight options from Ottawa to Illinois based on user searches, and compare prices and availability for your desired travel dates. Data last updated 20 November 2024.

Sat 1/25:00 p.m.YOW - ORD

Nonstop2h 38mAir Canada

Wed 5/26:08 p.m.ORD - YOW

Nonstop2h 16mAir Canada

Deal found 18/11C$ 550

Wed 15/16:20 a.m.YOW - ORD

Nonstop2h 40mUnited Airlines

Sat 18/11:55 p.m.ORD - YOW

Nonstop2h 11mUnited Airlines

Deal found 19/11C$ 577

Sun 1/126:20 a.m.YOW - ORD

Nonstop2h 42mMultiple Airlines

Wed 4/122:00 p.m.ORD - YOW

Nonstop2h 06mMultiple Airlines

Deal found 18/11C$ 1,023

Last-minute flights from Ottawa to Illinois
Discover last-minute flight deals from Ottawa to Illinois. Data last updated 20 November 2024 and is based on user searches.

Wed 20/115:55 a.m.YOW - MDW

2 stops13h 37mWestJet

Wed 27/1112:43 p.m.MDW - YOW

2 stops10h 27mWestJet

Deal found 19/11C$ 1,081

Fri 29/1111:50 a.m.YOW - MDW

1 stop5h 50mPorter Airlines

Sun 1/125:35 p.m.MDW - YOW

1 stop3h 36mPorter Airlines

Deal found 19/11C$ 661

Fri 29/117:00 a.m.YOW - MDW

1 stop4h 20mMultiple Airlines

Sun 1/125:21 p.m.MDW - YOW

2 stops44h 44mMultiple Airlines

Deal found 20/11C$ 914

Fri 29/116:20 a.m.YOW - ORD

Nonstop2h 42mUnited Airlines

Sun 1/127:28 a.m.ORD - YOW

Nonstop2h 03mUnited Airlines

Deal found 19/11C$ 1,015

Fri 29/118:25 a.m.YOW - ORD

1 stop5h 46mAir Canada

Sun 1/127:20 a.m.ORD - YOW

1 stop6h 43mAir Canada

Deal found 20/11C$ 1,028

Fri 29/116:15 a.m.YOW - ORD

2 stops16h 43mWestJet

Sun 1/124:06 p.m.ORD - YOW

2 stops31h 04mWestJet

Deal found 20/11C$ 1,244

Fri 29/115:55 a.m.YOW - MDW

2 stops16h 51mWestJet

Sun 1/127:17 p.m.MDW - YOW

2 stops28h 29mWestJet

Deal found 19/11C$ 1,400

Thu 12/1211:50 a.m.YOW - ORD

3 stops18h 40mMultiple Airlines

Sun 15/129:53 p.m.ORD - YOW

1 stop18h 07mMultiple Airlines

Deal found 19/11C$ 540

Thu 12/125:55 a.m.YOW - ORD

2 stops11h 35mDelta

Mon 16/1211:59 a.m.ORD - YOW

2 stops11h 11mDelta

Deal found 19/11C$ 1,141

Thu 12/125:55 a.m.YOW - MDW

2 stops12h 06mDelta

Sun 15/126:00 a.m.MDW - YOW

2 stops17h 10mDelta

Deal found 19/11C$ 1,190

Fri 13/127:00 a.m.YOW - MDW

1 stop5h 10mMultiple Airlines

Sun 15/125:15 a.m.MDW - YOW

1 stop8h 05mMultiple Airlines

Deal found 19/11C$ 587

Sun 15/125:00 p.m.YOW - ORD

Nonstop2h 36mUnited Airlines

Mon 16/127:28 a.m.ORD - YOW

Nonstop2h 03mUnited Airlines

Deal found 19/11C$ 661

One-way flights from Ottawa to Illinois
Search for one-way flight options from Ottawa to Illinois. Find affordable one-way fares based on user searches. Data last updated 20 November 2024.

Thu 23/14:20 p.m.YOW - ORD

1 stop18h 19mMultiple Airlines

Deal found 19/11C$ 260

Fri 20/127:00 a.m.YOW - MDW

1 stop5h 10mPorter Airlines

Deal found 19/11C$ 281

Tue 17/129:20 a.m.YOW - MDW

1 stop9h 34mMultiple Airlines

Deal found 19/11C$ 312

Fri 14/25:00 p.m.YOW - ORD

Nonstop2h 34mUnited Airlines

Deal found 19/11C$ 322

Wed 4/125:00 p.m.YOW - ORD

Nonstop2h 36mAir Canada

Deal found 20/11C$ 435

Sat 4/16:00 a.m.YOW - STL

2 stops10h 37mUnited Airlines

Deal found 20/11C$ 468

Sat 4/110:00 a.m.YOW - STL

3 stops26h 45mMultiple Airlines

Deal found 20/11C$ 570

Thu 23/15:55 a.m.YOW - MDW

2 stops8h 13mDelta

Deal found 19/11C$ 609

Tue 31/125:55 a.m.YOW - MDW

2 stops17h 11mWestJet

Deal found 20/11C$ 641

Best time to book a flight from Ottawa to Illinois

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

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.

Travel insights for flights from Ottawa to Illinois

Get recent, data-driven insights about flights from Ottawa to Illinois including ideal travel times, pricing trends, and more.

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

Currently, January is the cheapest month in which you can book a flight from Ottawa to Illinois (average of C$ 261). Flying from Ottawa to Illinois in May is currently the most expensive (average of C$ 342). 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 YOW to IL?

When flying from Ottawa to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Ottawa to Illinois

The most flights from YOW to USIL are scheduled on a Monday (12 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (7 on average).

Rainfall in Illinois by month

In terms of precipitation, rainfall in Illinois ranges from 43.0 - 125.0 mm per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Illinois when rainfall is around 43.0 mm.

Temperature in Illinois by month

If weather is an important factor for your trip to Illinois, 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 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).

Reviews of airlines servicing Illinois

Get a feel of what it's like to fly with Air Canada, Delta and United Airlines from Ottawa to Illinois by reading reviews from past customers. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

8,756 reviews

Check prices

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta

8.0

Very good

8,756 reviews

Delta

8.0

Very good

8,756 reviews

Check prices

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Porter Airlines

7.8

Good

288 reviews

Delta

8.0

Very good

8,756 reviews

Check prices

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines

7.4

Good

9,171 reviews

Delta

8.0

Very good

8,756 reviews

Check prices

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

WestJet

7.3

Good

2,811 reviews

Delta

8.0

Very good

8,756 reviews

Check prices

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Air Canada

7.0

Good

8,237 reviews

Delta

8.0

Very good

8,756 reviews

Check prices

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

What airport do you fly from for flights from Ottawa to Illinois?
Ottawa (YOW) is the airport you will fly out of if you book a flight from Ottawa to Illinois. It is only a 10.6 km journey to Ottawa (YOW) from Ottawa’s city centre.
What are the cheapest airlines to fly from Ottawa to Illinois one-way?
The cheapest airline one-way is Porter Airlines, with whom users have recently found tickets for as low as C$ 281. However, be on the lookout for offers from United Airlines and Air Canada, as they are both options that can get you from Ottawa to Illinois for a low price.
What are the most popular routes from Ottawa to Illinois?
Most travellers choose Ottawa - Chicago O'Hare Intl, Ottawa - Chicago Midway or Ottawa - Lambert-St Louis when deciding on the best route from Ottawa to Illinois.
What are the most reliable airlines from Ottawa to Illinois?
Before booking your flight to Illinois from Ottawa, check out the most reliable airlines to get you to your destination on time: GoJet (100%), Avianca (100%), ANA( 94%).
What are the cheapest flights from Ottawa to Illinois?
Looking for the cheapest flight from Ottawa to Illinois? While on average our users pay C$ 1,597, our data indicates the cheapest price to be C$ 297. The most popular route (Ottawa - Chicago O'Hare Intl), is priced around C$ 525.
Can I find deals for flights from Ottawa to Illinois that include hotel bookings?
Yes. In addition to deals on Ottawa to Illinois flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Ottawa to Illinois?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ottawa to Illinois.
Can I find deals for business class flights from Ottawa to Illinois?
Yes. Cheapflights offers flight deals from Ottawa to Illinois 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 Ottawa to Illinois?
Currently, January is the cheapest month in which you can book a flight from Ottawa to Illinois (average of C$ 261). Flying from Ottawa to Illinois in May is currently the most expensive (average of C$ 342). 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

Browse thousands of different options on Cheapflights for your next trip

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Complete your trip

Illinois car rentals

Chicago O'Hare Intl Airport car rentals

Chicago Midway Airport car rentals

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Bloomington-Normal Airport car rentals

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Marion Williamson County Airport car rentals

Quincy Regional Airport car rentals

Direct flights to United States

Top 3 airlines flying from Ottawa to Illinois

Airline	Cheapest	Average	Flexibility	On-time
Porter Airlines	CheapestC$ 381	AverageC$ 527	FlexibilityNo cancel fee	On-time52%	Search Porter Airlines flights
Air Canada	CheapestC$ 571	AverageC$ 740	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
United Airlines	CheapestC$ 617	AverageC$ 843	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights

Fly with Cheapflights

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

Cheapflights makes it easy to find Ottawa to Illinois flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Cheapflights helps you find that perfect flight to Illinois from Ottawa by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Yes! Cheapflights helps users easily find flights from Ottawa to Illinois with no change fees.

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Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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Cheap flights from Ottawa to Illinois from C$ 260

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 23/1. Fares are subject to change and may not be available on all flights or dates of travel.

Find flights from Ottawa to Illinois within your budget

Cheap flight deals from Ottawa to Illinois

Find flight deals from Ottawa to Illinois

Cheapest flights from Ottawa to IllinoisExplore the most affordable flight options available from Ottawa to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 November 2024.

Explore the most affordable flight options available from Ottawa to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 November 2024.

Best time to book a flight from Ottawa to Illinois

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

Travel insights for flights from Ottawa to Illinois

Get recent, data-driven insights about flights from Ottawa to Illinois including ideal travel times, pricing trends, and more.

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

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

Find hourly flight availability from Ottawa to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 20 November 2024.

Weekly flight availability from Ottawa to Illinois

Explore weekly flight availability from Ottawa to Illinois. 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 20 November 2024.

Rainfall in Illinois by month

Plan your trip to Illinois by taking into account the average rainfall totals by month.

Temperature in Illinois by month

Plan your trip to Illinois by taking into account the average temperature totals by month.

Reviews of airlines servicing Illinois

Related info for your journey

Find useful and relevant information for your journey from Ottawa to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

What are the cheapest airlines to fly from Ottawa to Illinois one-way?

What are the most popular routes from Ottawa to Illinois?

What are the most reliable airlines from Ottawa to Illinois?

What are the cheapest flights from Ottawa to Illinois?

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

How can I find direct flights from Ottawa to Illinois?

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

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Ottawa to Illinois

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from Ottawa to Illinois

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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

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

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

Can Cheapflights notify me if prices for flights from Ottawa to Illinois become cheaper?

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Cheapest flights from Ottawa to Illinois
Explore the most affordable flight options available from Ottawa to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 November 2024.