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Cheap flights from Illinois to Ottawa from $161

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Ottawa departing on 9/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Illinois to Ottawa

Cheap round-trip flights

Logo
9:35 am - 12:22 amMDW-YOW
13h 47m1 stop
Logo
5:55 am - 8:39 amYOW-MDW
27h 44m1 stop
$319
Find Deal
Thu, Sep 4 - Sun, Sep 7
Logo
5:17 pm - 4:57 pmORD-YOW
22h 40m1 stop
Logo
4:25 pm - 4:12 pmYOW-ORD
24h 47m1 stop
$324
Find Deal
Thu, Sep 4 - Sun, Sep 7
WestJet Logo
5:30 pm - 6:45 amORD-YOW
12h 15m1 stop
WestJet Logo
6:00 am - 4:43 pmYOW-ORD
11h 43m1 stop
$327WestJet
Find Deal
Wed, Sep 17 - Sat, Sep 27
WestJet Logo
5:30 pm - 6:20 pmORD-YOW
23h 50m1 stop
WestJet Logo
7:50 am - 4:43 pmYOW-ORD
9h 53m1 stop
$333WestJet
Find Deal
Thu, Sep 18 - Sun, Sep 28
Air Canada Logo
8:40 am - 1:51 pmORD-YOW
4h 11m1 stop
Air Canada Logo
11:05 am - 2:55 pmYOW-ORD
4h 50m1 stop
$344Air Canada
Find Deal
Fri, Sep 12 - Fri, Sep 19
Porter Airlines Logo
9:35 am - 4:34 pmMDW-YOW
5h 59m1 stop
Porter Airlines Logo
1:25 pm - 4:24 pmYOW-MDW
3h 59m1 stop
$359Porter Airlines
Find Deal
Fri, Oct 17 - Mon, Oct 20
Porter Airlines Logo
9:35 am - 4:34 pmMDW-YOW
5h 59m1 stop
Porter Airlines Logo
1:25 pm - 4:24 pmYOW-MDW
3h 59m1 stop
$363Porter Airlines
Find Deal
Fri, Sep 19 - Mon, Sep 22
United Airlines Logo
6:06 pm - 9:35 pmORD-YOW
2h 29mnonstop
United Airlines Logo
6:33 am - 8:00 amYOW-ORD
2h 27mnonstop
$374United Airlines
Find Deal
Thu, Sep 4 - Sun, Sep 7
United Airlines Logo
10:35 am - 4:43 pmORD-YOW
5h 08m1 stop
United Airlines Logo
6:33 am - 8:00 amYOW-ORD
2h 27mnonstop
$376United Airlines
Find Deal
Thu, Sep 4 - Sun, Sep 7
Air Canada Logo
8:40 am - 1:51 pmORD-YOW
4h 11m1 stop
Air Canada Logo
5:25 pm - 6:54 pmYOW-ORD
2h 29mnonstop
$378Air Canada
Find Deal
Fri, Sep 12 - Fri, Sep 19

WestJet flights from Illinois to Ottawa

Our best WestJet deals on Illinois to Ottawa flight tickets
WestJet
Sep 17
ORD5:30 pmChicago O'Hare Intl
12h 15m
1 stop
YOW6:45 amOttawa
Sep 27
YOW6:00 amOttawa
11h 43m
1 stop
ORD4:43 pmChicago O'Hare Intl
$327
Find similar
WestJet
Sep 18
ORD5:30 pmChicago O'Hare Intl
23h 50m
1 stop
YOW6:20 pmOttawa
Sep 28
YOW7:50 amOttawa
9h 53m
1 stop
ORD4:43 pmChicago O'Hare Intl
$333
Find similar
WestJet
Oct 2
ORD5:30 pmChicago O'Hare Intl
12h 15m
1 stop
YOW6:45 amOttawa
Oct 5
YOW7:50 amOttawa
9h 53m
1 stop
ORD4:43 pmChicago O'Hare Intl
$336
Find similar

Air Canada flights from Illinois to Ottawa

Our best Air Canada deals on Illinois to Ottawa flight tickets
Air Canada
Sep 12
ORD8:40 amChicago O'Hare Intl
4h 11m
1 stop
YOW1:51 pmOttawa
Sep 19
YOW11:05 amOttawa
4h 50m
1 stop
ORD2:55 pmChicago O'Hare Intl
$344
Find similar
Air Canada
Sep 12
ORD8:40 amChicago O'Hare Intl
4h 11m
1 stop
YOW1:51 pmOttawa
Sep 19
YOW5:25 pmOttawa
2h 29m
ORD6:54 pmChicago O'Hare Intl
$378
Find similar
Air Canada
Oct 4
ORD3:35 pmChicago O'Hare Intl
5h 29m
1 stop
YOW10:04 pmOttawa
Oct 6
YOW9:05 amOttawa
6h 50m
1 stop
ORD2:55 pmChicago O'Hare Intl
$380
Find similar

momondo Fare Finder

 
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, momondo users made 832,500 searches. Data last updated July 31, 2025.
Use the filters below to find and compare flights from Illinois to Ottawa that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Thu 9/4

9:35 am-12:22 am

1 stop13h 47m

Ottawa

Sun 9/7

5:55 am-8:39 am

1 stop27h 44m

$319

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Thu 9/4

5:17 pm-4:57 pm

1 stop22h 40m

Ottawa

Sun 9/7

4:25 pm-4:12 pm

1 stop24h 47m

$324

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Wed 9/17

5:30 pm-6:45 am

1 stop12h 15m

Ottawa

Sat 9/27

6:00 am-4:43 pm

1 stop11h 43m

$327

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Thu 9/18

5:30 pm-6:20 pm

1 stop23h 50m

Ottawa

Sun 9/28

7:50 am-4:43 pm

1 stop9h 53m

$333

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Fri 9/12

8:40 am-1:51 pm

1 stop4h 11m

Ottawa

Fri 9/19

11:05 am-2:55 pm

1 stop4h 50m

$344

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Fri 10/17

9:35 am-4:34 pm

1 stop5h 59m

Ottawa

Mon 10/20

1:25 pm-4:24 pm

1 stop3h 59m

$359

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Fri 9/19

9:35 am-4:34 pm

1 stop5h 59m

Ottawa

Mon 9/22

1:25 pm-4:24 pm

1 stop3h 59m

$363

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Thu 9/4

6:06 pm-9:35 pm

Nonstop2h 29m

Ottawa

Sun 9/7

6:33 am-8:00 am

Nonstop2h 27m

$374

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Thu 9/4

10:35 am-4:43 pm

1 stop5h 08m

Ottawa

Sun 9/7

6:33 am-8:00 am

Nonstop2h 27m

$376

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Fri 9/12

8:40 am-1:51 pm

1 stop4h 11m

Ottawa

Fri 9/19

5:25 pm-6:54 pm

Nonstop2h 29m

$378

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Ottawa from

How to get the cheapest flight ticket from Illinois to Ottawa

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 Ottawa?

In general, May is the cheapest month to fly from Illinois to Ottawa. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $339. The month of January is another great option to travel to Ottawa, with average flight prices from Illinois averaging around $424.

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

The cheapest day to depart from Illinois to Ottawa is on a Thursday. Travelers who choose to depart for Ottawa on a Thursday will often find tickets for as low as $552. Be sure to avoid booking your departure on a Tuesday as prices are generally higher than usual. According to our data, the average ticket price to Ottawa on Tuesday is $697.

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

In the morning is the cheapest time of day to fly from Illinois to Ottawa when you can find flight prices for as low as $558. Flying to Ottawa in the morning is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $741 on average. Flights to Ottawa from Illinois in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Illinois to Ottawa flight route?

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

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

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

No. A direct flight is the cheapest option for a flight between Illinois to Ottawa.

Cheap Illinois to Ottawa flight deals and tips

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

Best Price Found

$161

Fastest flight time

2h 08m

Direct flights

Every day

Airports in Ottawa

1 airport
The best one-way flight to Ottawa from Illinois in the past 72 hours is $161. The best round-trip flight deal from Illinois to Ottawa found on momondo in the last 72 hours is $319.
The fastest flight from Illinois to Ottawa takes 2h 08m
Direct flights go from Illinois to Ottawa every day.
There is 1 airport near Ottawa: Ottawa (YOW)
Search flight deals

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

    Prices for flights from Illinois to Ottawa Airport are refreshed on a daily basis.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Ottawa Airport.

  • What documentation or ID do you need to fly to Ottawa Airport?

    The necessary travel and health documents for your Ottawa Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Illinois to Ottawa?

Best airlines flying from Illinois to Ottawa

Compare and see reviews for airlines that fly from Illinois to Ottawa with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom $189Free CancellationRating
7.1
9,851 reviews
Search Air Canada flights
Porter AirlinesPriceFrom $189Free CancellationRating
8.0
318 reviews
Search Porter Airlines flights
United AirlinesPriceFrom $236Free CancellationRating
7.4
8,900 reviews
Search United Airlines flights

Traveling to a place near Ottawa?

Book flights to Ottawa if you plan to visit one of these locations
Gatineau
Smiths Falls
Calabogie
Brockville
Prescott
Pembroke
Winchester
Wakefield
Petawawa

Why use momondo?

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

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 Illinois to Ottawa for you.

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

Yes. All flights to Ottawa from Illinois on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search for Illinois to Ottawa flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from Illinois to Ottawa now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Ottawa and let you know when they change.

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