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$130+ Cheap flights from Illinois to Ottawa (YOW)

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 4/25. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — YOW
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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Cheap flight deals from Illinois to Ottawa

Keep the following information in mind while searching for Illinois to Ottawa flight deals. Data was last updated February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$130
(123 Milhas)

Popular in

November

Cheapest in

July

Average price

$486

Good round-trip deal

$339 or less

Good one-way deal

$268 or less
Provider with most accurate pricing for Chicago (CHI)-Ottawa flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Ottawa flights.
Search Deals
From Illinois to Ottawa
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($14 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2025
Search Deals
Price to beat on a round-trip flight from Illinois to Ottawa.
Search Deals
Price to beat on a one-way flight from Illinois to Ottawa.
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Find flight deals from Illinois to Ottawa

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 February 20, 2025.

This 123 Milhas deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 123 Milhas is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/258:25 pmORD - YOW
1 stop4h 09mAir Canada
Thu 5/19:20 amYOW - ORD
1 stop4h 35mAir Canada
Deal found 2/20$130
This Kiwi.com deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/48:30 amMDW - YOW
1 stop7h 42mMultiple Airlines
Wed 3/54:25 pmYOW - MDW
1 stop7h 35mMultiple Airlines
Deal found 2/19$323
This Trip.com deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/2212:55 pmMDW - YOW
1 stop4h 34mPorter Airlines
Sun 3/307:00 amYOW - MDW
1 stop4h 20mPorter Airlines
Deal found 2/19$330
This Kiwi.com deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/211:08 pmSTL - YOW
1 stop16h 37mMultiple Airlines
Mon 3/314:20 pmYOW - STL
1 stop8h 29mMultiple Airlines
Deal found 2/20$336
This Mytrip deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/611:42 amORD - YOW
2 stops26h 28mMultiple Airlines
Sun 4/139:25 amYOW - ORD
1 stop16h 16mMultiple Airlines
Deal found 2/20$381
This Justfly.com deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/105:30 pmORD - YOW
1 stop12h 15mWestJet
Wed 6/187:50 amYOW - ORD
1 stop9h 54mWestJet
Deal found 2/19$549
This United Airlines deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/111:00 amORD - YOW
1 stop6h 42mUnited Airlines
Tue 7/86:33 amYOW - ORD
Nonstop2h 22mUnited Airlines
Deal found 2/20$561
This Delta deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/2810:25 amORD - YOW
2 stops12h 44mDelta
Thu 4/35:55 amYOW - ORD
2 stops11h 16mDelta
Deal found 2/20$604
This Air Canada deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/31:30 pmSTL - YOW
1 stop5h 45mAir Canada
Mon 7/710:00 amYOW - STL
1 stop6h 16mAir Canada
Deal found 2/20$805
This Delta deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/2110:30 amSTL - YOW
2 stops12h 39mDelta
Fri 3/285:55 amYOW - STL
2 stops11h 53mDelta
Deal found 2/20$813
This United Airlines deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/68:00 amSTL - YOW
1 stop5h 04mUnited Airlines
Sun 4/136:05 amYOW - STL
2 stops10h 42mUnited Airlines
Deal found 2/20$823
This Kiwi.com deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/711:15 amMDW - YOW
1 stop10h 14mAir Transat
Sat 4/267:00 amYOW - MDW
1 stop6h 00mAir Transat
Deal found 2/18$893

Find flights from Illinois to Ottawa within your budget

Customize your flight search to find flights from Illinois to Ottawa that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 20, 2025.

Fly from

Illinois

Fly to

Ottawa

Route

Depart

Return

Price

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Fri 4/25

8:25 pm-1:34 am

1 stop4h 09m

Ottawa

Thu 5/1

9:20 am-12:55 pm

1 stop4h 35m

$130

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Tue 3/4

8:30 am-5:12 pm

1 stop7h 42m

Ottawa

Wed 3/5

4:25 pm-11:00 pm

1 stop7h 35m

$323

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Sat 3/22

12:55 pm-6:29 pm

1 stop4h 34m

Ottawa

Sun 3/30

7:00 am-10:20 am

1 stop4h 20m

$330

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Sun 3/2

11:08 pm-4:45 pm

1 stop16h 37m

Ottawa

Mon 3/31

4:20 pm-11:49 pm

1 stop8h 29m

$336

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Sun 4/6

11:42 am-3:10 pm

2 stops26h 28m

Ottawa

Sun 4/13

9:25 am-12:41 am

1 stop16h 16m

$381

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Tue 6/10

5:30 pm-6:45 am

1 stop12h 15m

Ottawa

Wed 6/18

7:50 am-4:44 pm

1 stop9h 54m

$549

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Tue 7/1

11:00 am-6:42 pm

1 stop6h 42m

Ottawa

Tue 7/8

6:33 am-7:55 am

Nonstop2h 22m

$561

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Fri 3/28

10:25 am-12:09 am

2 stops12h 44m

Ottawa

Thu 4/3

5:55 am-4:11 pm

2 stops11h 16m

$604

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Thu 7/3

1:30 pm-8:15 pm

1 stop5h 45m

Ottawa

Mon 7/7

10:00 am-3:16 pm

1 stop6h 16m

$805

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Fri 3/21

10:30 am-12:09 am

2 stops12h 39m

Ottawa

Fri 3/28

5:55 am-4:48 pm

2 stops11h 53m

$813

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 22 results
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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.
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 Illinois to Ottawa

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

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

Currently, January is the cheapest month in which you can book a flight from Illinois to Ottawa (average of $294). Flying from Illinois to Ottawa in May is currently the most expensive (average of $474). 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?

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 February 20, 2025.

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 February 20, 2025.

The most flights from USIL to YOW are scheduled on a Tuesday (14 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (7 on average).

Rainfall in Ottawa by month

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

In terms of precipitation, rainfall in Ottawa ranges from 2.0 - 3.7 inches per month. June is typically the wettest month, when rainfall can reach 3.7 in. February is typically the driest time to visit Ottawa when rainfall is around 2.0 in.

Temperature in Ottawa by month

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

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 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 14.0 F).

Reviews of airlines servicing Ottawa

Get insights into the airlines that provide service to Ottawa. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ottawa. Reviews last updated February 20, 2025.
To help decide which airline to fly from Illinois to Ottawa, see what other customers have to say about Delta, Porter Airlines and Air Transat. 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
8,220 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,220 reviews
Delta
8.0
Very good
8,220 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Porter Airlines
7.9
Good
276 reviews
Delta
8.0
Very good
8,220 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air Transat
7.8
Good
380 reviews
Delta
8.0
Very good
8,220 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines
7.4
Good
8,766 reviews
Delta
8.0
Very good
8,220 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

WestJet
7.2
Good
2,801 reviews
Delta
8.0
Very good
8,220 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Ottawa. 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 into for flights to Ottawa from Illinois?

    If you book a flight to Ottawa from Illinois, you will be flying to Ottawa, which is the city’s only airport. Ottawa (YOW) is located 6.6 mi from the center of Ottawa.

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

    The cheapest airline one-way is Porter Airlines, with whom users have recently found tickets for as low as $165. However, be on the lookout for offers from Air Canada and United Airlines, as they are both options that can get you from Illinois to Ottawa for a low price.

  • 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 Lambert-St Louis - 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 GoJet (100%), United Airlines (91%) or Air Canada (89%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Illinois to Ottawa?

    While on average a flight from Illinois to Ottawa is generally $445, our data shows the cheapest flight currently is $195. When looking at the most popular route, (Chicago O'Hare Intl - Ottawa), you can expect to pay $277 for that flight.

  • 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, January is the cheapest month in which you can book a flight from Illinois to Ottawa (average of $294). Flying from Illinois to Ottawa in May is currently the most expensive (average of $474). 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

Traveling to a place near Illinois?

Book flights to Illinois if you plan to visit one of these locations
Gatineau
Brockville
Pembroke
Petawawa

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Alternative routes for Illinois to Ottawa

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Illinois to Ottawa

Discover the top 3 airlines that operate flights from Illinois to Ottawa. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$241Average$562FlexibilityNo cancel feeOn-time67%
Porter AirlinesCheapest$387Average$500FlexibilityNo cancel feeOn-time52%
United AirlinesCheapest$478Average$722FlexibilityNo cancel feeOn-time69%
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