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Find cheap flights from Ottawa to Illinois from C$ 192

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ottawa to Illinois departing on 6/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Sat 27/4
Sat 4/5

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Best Illinois Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Chicago
Chicago1 stopC$ 319

Good to know

Low season

January

High season

September

Cheapest flight

C$ 192
Best time to beat the crowds but there is an average 16% increase in price.
Most popular time to fly (19% more expensive on average)
Flight from Ottawa to Chicago Midway Airport

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Ottawa to Illinois?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ottawa to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ottawa to Illinois?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Illinois from Ottawa is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ottawa to Illinois?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Illinois with an airline and back to Ottawa with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ottawa to Illinois?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Illinois from Ottawa up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Illinois

  • Looking for a cheap flight? 25% of our users found tickets from Ottawa to the following destinations at these prices or less: Chicago C$ 409 one-way - C$ 818 round-trip
  • Morning departure is around 43% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 5 airlines serving from Ottawa to Illinois

Need help choosing which airline to fly with from Ottawa to Illinois? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to KAYAK reviews.
7.6
Air FranceOverall score based on 1885 reviews
72food
71entertainment
76overall
75comfort
83crew
75boarding
Airline reviews

They wanted to close counter although they did not provide the wheelchair requested which ended by going alone to transit security and lost long time and they did not want to wait .

Read more about Air France

They wanted to close counter although they did not provide the wheelchair requested which ended by going alone to transit security and lost long time and they did not want to wait .

They charge me for luggage which is was included on the ticket

Business class in the second leg - CDG-EVN was a disaster.

I have used Air France and KLM many times it will help if they change their menu's feel like it's been the same for years!!!, Especially the breakfast. Overall the flight was good and enjoyable.

Lost luggage, 2 bags were badly damaged and one of the bags came open.

The line at boarding was not well organized and managed

their gluten free lactose meal is the best, I have never been satisfied with my flight meals. I definitely enjoyed my flight and the chair is very spacious for economy. I'm so glad Delta is my flight way back to NY.

The crew was great and handled our unexpected detour with proactive communication.

My seat was so uncomfortable, and the headrest was broken. Very very disappointing for the price I paid.

Even though my seat is a paid seat, I was told to give up my seat to a passenger. I tried to ask the CA to negotiate, and when I spoke in Japanese, the CA fled. I had to find a Japanese CA and ask them to deal with it. . After takeoff, I spilled my coffee, and when I asked the flight attendant for a towel, she told me to wipe it off with a wet tissue. My clothes got wet, so I asked CA for an extra blanket, but I had to wait for an hour.

Crew was rude.didn’t even say hi or welcome to board

Nothing special. Unacceptable wait for baggage on arriving in Calgary

Departure delay on a late night flight. Made us even later. Tired but got home.

Westjet forced me to put my carry-on baggage in check-in probably because I was assigned seat 23A (the last row seat), which had no cabin space, which is unfair. I wanted to carry on my luggage so that I don't have to wait at the airport for my luggage. Also, because there was no cabin space, I was forced to keep my laptop bag under the seat, which I didn't want to as I was carrying 2 laptops and charger. The airline should basically tell people that if you are assigned a last row seat, then you are not allowed a cabin baggage or a personal item.

Easy processing, flight time was quick and staff was professional and kind.

It was delayed by two ours very full no room to move

They seem to have squeezed out a little more legroom in these planes! It was very nice to not have to fold in half to fit in the seats!

Flight late …60 minutes No food No wifi No entertainment system A disaster!!!

No real issues just wasnt able to hear / understand any announcements flight attendant was making but everything else was really good- ended up checking my carry on case for free which made deboarding quicker. I would fly West Jet for all my flights.

Seat comfort could be much better but it was economy so......

The flight I was connecting with waited for me even though my 1st flight was late. I really appreciated that.

Good movies, iffy pay WiFi, food ok- on time though and that was great!

Unfortunately this is not a happy ending comment. Positive: flown United before no issue Negative: it only takes one bad experience to not plan future travel with United Cancún departure was delayed by 1h20 minutes, connection in Chicago was 1h30 minutes. Flight departure time 6:08 Miraculously 7 of us ran 4 kilometres through Chicago to arrive at 6:00 to be told very rudely by the 2 unprofessional United attendants you missed your flight and that we should of arrived early. Did I mention that reason I was flying? I received a call that my brother was dying and to get home. They provided no assistance would not answer any of our questions, ignorantly walked away. Deplorable

The seat is too hard and my back and bottom are having servers pain

Awful…flight was delayed more than 12hrs, missed all connections to Fort Wayne, IN, had to get flight to another city 2 hours from my destination, flight was again delayed by 40 mins because they did not have enough fuel, again missed a connection, finally arrived in Indiana at 11pm…but before my 2 hour drive home, ay, no Five That Our Luggage Never Made On The plane and Still In Chicago

If United expects people to use their own devices for entertainment they should put charging outlets in each seating area. I arrived with 14%battery power. That is not good when you arrive anywhere and need to communicate for transportation.

Boarding was friendly and quick. While the plane model was older with no live tv, the entertainment was full of movies and tv shows. All food was available. Pilots were very communicative with status of the flight. Flight landed on time.

There was no lounge for passengers waiting before boarding the aircraft at F65, so passengers are just sitting on the floor or just spread everywhere the premises before boarding.

Great crew, friendly. Found the trip long just sitting with no onboard entertainment

Flight was delayed by over an hour and gate checked bags took 15 minutes to be delivered to the jet bridge.

The boarding process in Toronto bad as they share space with domestic flights and when those domestic flights come in you are locked out behind closed doors until they are done and then its a mad rush to get your boarding gates and board. This is not so much due to Air Canada but with the GTAA, but Air Canada could use different gates especially early morning in order to prevent such travel angst.

Terrible quality wifi and they charge a lot for it. They nickel and dime you for everything.

Not happy with Air Canada . Flight was cancelled got the run around trying to get another flight that was direct none to be found ended up going to Denver then onto Austin adding 7 hours to our trip. Was travelling with some one who had walking issues that’s why we were happy to have a direct flight then it didn’t happen adding more stress on her

Well you cancelled our direct flight to Austin from Toronto granted you got us on another flight but sent us to Denver then onto Austin delaying our arrival time in Austin by 7 hrs I was flying with 3 other people none of us were happy with our Air Canada experience

I wish there had been more seat options...when I tried to book, there were only.middle seats available. Do travel agents get first pick??

As is pretty much the norm with Air Canada now, we left late from the gate (45 minutes late). This is my 12th flight with AC in the last 12 months and 10 of those flights were either late or cancelled. AC essentially has a monopoly in Canada so they have carte blanche to charge exorbitant rates now and give poor service, with no repercussions.

A 2 hour delay because they couldn’t fit some oversized cargo in the small hold doors of an Embraer! Surely they know the sizes before attempting to load it?

When we got to the airport for our flight from Chicago to Montreal which was scheduled for 2.00 p.m. they had no record of it and booked us on a flight at 3.30 very disappointing . We also had to pay 50.00 each for a seat. All things considered ,I will never book thru Kayak again. Next time I will only book directly thru Air Canada no second party booking Sue

-kayak did not give me advanced notice to my e-mail for my flight and I had major trouble finding the code to access Air Canada’s site because you did not provide it to me and incompetent Air Canada did not have any access based on my name alone. WTF -The flight was delayed twice. -They moved the boarding area -They said I would give free checked baggage because the plane was full and they charged me over $30 -They didn’t get my luggage on to the plane and left without it and I’m heading to a cruise ship. -I have lost one FULL day of my limited holiday and had to cancel scheduled events because my luggage did not get on the plane (even though the plane was delayed). -The “wheresmyluggage.com site is a total incompetent disaster that caused additional stress. -I will be sharing this experience

Plane was a Rouge vacation flyer for some reason. No legroom and entertainment. People were desperately looking for USB ports and such. And then there is this notorious and unsolved space problem where not all carry-on fits in the cabin….

Our flight to Chicago O'Hare was delayed an hour, causing us to miss our connection to MSP and spend an extra 3 hours at O'Hare so we could board a plane with a damaged door and wait another 45 minutes or so. The crew was great, the food decent, The drinks were great: 2 glasses of a nice South African Shiraz, an ice cold can of Beck's Beer, and Dewar's White Label on the rocks.

A350 has great entertainment. Make sure to watch the plane's external tail and nose camera's on landing and take off. Seats were a little hard for a 10 hour flight. I am gluten intolerant, they had good alternative meals for me on the flight.

Boarding was horrible. We were packed into a bus with few seats and made to stand for 10 to 15 minutes, then driven for 5 minutes on wild curves. Complementary food and drink was a tiny chocolate and a bottle of water. Seating was cramped. Aircraft had no video.

didn’t even get to go one of my returning flights cancelled and I wasn’t even in their system, vacation ruined thanks for nothing

Need more time for connecting flights in Munich Food seems worse now on Lufthansa Very uncomfortable seats

Better flight than mum to Frankfurt. But food was very mediocre.

Flight landed on time but land services kept us in the plane for 3 hours. I missed connecting flight.

Everything was fine except that the ground personnel in Toronto wasn't able to operate the jet bridge, so that everybody was stuck in the plane after landing for 40 min, so I missed my connection.

Rude staff and seats are only can accommodate small people. If you 6 feet and up be ready for struggle.

Our flight was canceled for unknownreqson and we had to wait for another 7 houres to get the next flight

Book cheap flights from Ottawa to Illinois

Recent round-trip flight deals

20/4Sat
1 stopPorter Airlines
3h 37mYOW-MDW
22/4Mon
1 stopPorter Airlines
3h 39mMDW-YOW
C$ 319
25/4Thu
1 stopPorter Airlines
5h 27mYOW-MDW
2/5Thu
1 stopPorter Airlines
6h 29mMDW-YOW
C$ 330
25/4Thu
1 stopPorter Airlines
4h 02mYOW-MDW
2/5Thu
1 stopPorter Airlines
6h 29mMDW-YOW
C$ 340
25/4Thu
1 stopAir Canada
4h 24mYOW-ORD
2/5Thu
directAir Canada
2h 10mORD-YOW
C$ 489
19/4Fri
1 stopAir Canada
4h 24mYOW-ORD
22/4Mon
1 stopAir Canada
3h 57mORD-YOW
C$ 504
27/7Sat
directUnited Airlines
2h 25mYOW-ORD
29/7Mon
directUnited Airlines
2h 18mORD-YOW
C$ 724
10/7Wed
1 stopUnited Airlines
5h 34mYOW-STL
17/7Wed
1 stopUnited Airlines
5h 47mSTL-YOW
C$ 741
25/4Thu
2 stopsWestJet
28h 14mYOW-MDW
2/5Thu
2 stopsWestJet
13h 48mMDW-YOW
C$ 829
25/4Thu
2 stopsWestJet
28h 14mYOW-MDW
2/5Thu
2 stopsWestJet
31h 03mMDW-YOW
C$ 860
6/5Mon
directLufthansa
2h 25mYOW-ORD
9/5Thu
directLufthansa
2h 08mORD-YOW
C$ 1,262

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Recent one-way flight deals

6/5Mon
1 stopPorter Airlines
5h 47mYOW-MDW
C$ 192
17/4Wed
1 stopPorter Airlines
4h 02mYOW-MDW
C$ 197
17/4Wed
1 stopAir Canada
5h 24mYOW-ORD
C$ 284
17/4Wed
directAir Canada
2h 25mYOW-ORD
C$ 303
24/5Fri
2 stopsWestJet
26h 30mYOW-MDW
C$ 439
21/5Tue
2 stopsWestJet
17h 01mYOW-MDW
C$ 527
16/4Tue
1 stopUnited Airlines
15h 07mYOW-ORD
C$ 541
6/5Mon
directLufthansa
2h 25mYOW-ORD
C$ 556
16/4Tue
2 stopsUnited Airlines
8h 42mYOW-ORD
C$ 610
15/4Mon
directLufthansa
2h 25mYOW-ORD
C$ 645

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Last minute flights from Ottawa to Illinois

Last minute flight, train and bus deals

2/4Tue
multi-stopPorter Airlines
3h 42mYOW-MDW
4/4Thu
multi-stopPorter Airlines
3h 39mMDW-YOW
C$ 685
29/3Fri
multi-stop
4h 35mYOW-MDW
3/4Wed
multi-stop
22h 09mMDW-YOW
C$ 717
2/4Tue
multi-stop
3h 42mYOW-MDW
5/4Fri
multi-stop
10h 57mMDW-YOW
C$ 735
30/3Sat
multi-stopAir Canada
7h 22mYOW-ORD
31/3Sun
multi-stopAir Canada
4h 27mORD-YOW
C$ 872
29/3Fri
multi-stopWestJet
29h 47mYOW-MDW
3/4Wed
multi-stopWestJet
30h 13mMDW-YOW
C$ 1,277
29/3Fri
directAir Canada
2h 42mYOW-ORD
3/4Wed
multi-stopAir Canada
3h 57mORD-YOW
C$ 1,302
2/4Tue
multi-stopWestJet
16h 51mYOW-MDW
4/4Thu
multi-stopWestJet
13h 10mMDW-YOW
C$ 1,319
2/4Tue
multi-stopUnited Airlines
5h 40mYOW-ORD
5/4Fri
multi-stopUnited Airlines
4h 52mORD-YOW
C$ 1,406
29/3Fri
multi-stopDelta
11h 33mYOW-ORD
3/4Wed
multi-stopDelta
10h 51mORD-YOW
C$ 1,408
2/4Tue
directUnited Airlines
2h 25mYOW-ORD
4/4Thu
multi-stopUnited Airlines
4h 52mORD-YOW
C$ 1,519

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Ottawa - Illinois Flights

Departure:

Ottawa (YOW)Canada

Return flight deals:

Illinois - Ottawa

Cabin classes:

C$ 2,279
C$ 1,624
C$ 1,606
C$ 601

Browse origins: