Find Cheap Flights from Ottawa to Chicago O'Hare International (YOW - ORD)

Search hundreds of travel sites at once for deals on flights to Chicago O'Hare International

Sat 12/16
Sat 12/23
Any month
Compare vs. KAYAK |

Good to Know

Average Price:
$450
(avg. price over the last 2 weeks)
Good Deal:
$342
or less (round trip)

When to Book Flights from Ottawa to Chicago O'Hare International

Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $342 or less.
The cheapest flight from Ottawa to Chicago O'Hare International was found 77 days before departure, on average.
Book at least 1 week before departure in order to get a below-average price.
Morning departure is around 39% 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

FAQs for Booking Ottawa to Chicago O'Hare International Flights

How long does a flight from Ottawa to Chicago O'Hare International take?
An average nonstop flight takes 4h 40m, covering a distance of 653 miles.
How many flights are there between Ottawa and Chicago O'Hare International?
There are 112 (nonstop) flights between Ottawa and Chicago O'Hare International per week, averaging 17 per day.
Which airlines provide the cheapest flights from Ottawa to Chicago O'Hare International?
In the past 3 days, the cheapest round-trip tickets were found on American Airlines ($261), Delta ($277) and Air Canada ($326).
Do I need a passport to fly between Ottawa and Chicago O'Hare International?
Yes.
Which airlines fly most frequently between Ottawa and Chicago O'Hare International?
Air Canada (5 times daily), United (5 times daily), ANA (4 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly Ottawa to Chicago O'Hare International?
For Ottawa to Chicago O'Hare International, Tuesday is the cheapest day to fly on average and Friday is the most expensive. Flying from Chicago O'Hare International back to Ottawa, the best deals are generally found on Tuesday, with Saturday being the most expensive.

Book cheap flights from Ottawa to Chicago O'Hare International (round-trip)

Airports
Origin
Ottawa
$261
only
$261
Destination
Chicago
$261
only
$261
Tue, Mar 27
YOW
ORD
7h 11m
Thu, Apr 5
ORD
YOW
6h 04m
Trip: 10 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 26055 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
JFK
MXP
Mediocre 2.6

Plane was old and dirty, seat pocket had junk in it. Seat was broken and couldn’t stay up. In flight movies were from few years back with a center tv and no head rest screen. Crew on overseas flights tend to be older in age and less tolerant..much better on continental on the same route.

SJU
PHL
Good 6.3

My screen was not responsive most of the time

DFW
PBI
Okay 5.6

Free movies, and crew were helpful once we were in the air

Gate agent did not start forcing check in, which caused delay in boarding. Ground crew did not stock aircraft until 20 minutes after scheduled departure time. and DFW did the usual 20 minute taxi and then 15 minute hold prior to take off.

ORD
LAX
Excellent 9.5

Easy, smooth.

SFO
DFW
Excellent 10.0

On time. Comfortable seat. Courteous crew. Easy transfer.

Thu, Feb 1
YOW
ORD
8h 00m
Mon, Feb 5
ORD
YOW
4h 55m
Trip: 5 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 14257 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.5
Food
7.3
LGA
ORD
Excellent 10.0

Flight was on time. Boarded quickly with no fuss.

ZAG
CDG
Good 6.0

Old plane, bad food & old crew

JFK
MIA
Okay 5.3

Some of the flight attendants were rude and not very welcoming at all.

JFK
ATL
Excellent 8.3

We had the best flight attendant ever! Her name was Sharon on Eandeavor / Delta Cnx, and she made the experience the best flight I've experienced. Thanks Sharon for being awesome!

window seat in back didn't have window

DTW
BNA
Mediocre 2.0

Sat on the plane on the tarmac for over an hour in the cold...

Sat, Dec 30
YOW
ORD
4h 40m
Fri, Jan 5
ORD
YOW
4h 08m
Trip: 7 days
5.2OkayShow reviews
Overall 5.2 Okay
Based on 2 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.9
Food
6.5
FLL
YYZ
Good 6.6

left on time, arrived on time Good communicatiion from captain

Staff in economy not very friendly Very long wait for baggage

YVR
LAX
Excellent 8.0

I had an episode of anxiety over very minor turbulence which I sometimes get and both ladies who happened to be on duty were very reassuring and sympathetic to me. I had my 6 year old daughter also on the plane who is not anxious at all, so I was able to speak to one of the staff in French so as not to transfer my anxiety to my daughter who doesn't understand French. This was great. Over half way through the flight they gave me some earphones and suggested I watch a movie. This helped so much.

MSP
YYZ
Excellent 8.6

Crew and flight were great

Not great food, but that's ok.

MCO
YYZ
Good 6.0

Flight back was OK but flight to Orlando was not. Travelling with s 94 yr old man in a wheelchair. Everything at Pearson is not conduscent to travel with a handicapped person. Poor layout, poor assistance, non caring people, long distances,, and final straw was air canada started boarding without calling for handicapped first. We had to stop them and then fight our way up the aisle with people all in the way. Terrible, just lousey. 3 and a half hours before flight we arrived and didn't even have a chance to get some lunch before flight. I give Toronto and air Canada the worst possible rating of any airport or airline I've ever dealt with. John O"Hearn

YYZ
MCO
Excellent 10.0

The exact timing going and coming

After returning back and the airplane taxing on the ground it takes one hour to go out of the airport gate to my riding although I have no luggage

Fri, Dec 29
YOW
ORD
5h 02m
Fri, Jan 5
ORD
YOW
4h 54m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Sun, May 13
YOW
ORD
7h 09m
Wed, May 16
ORD
YOW
5h 50m
Trip: 4 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 14257 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.5
Food
7.3
ATL
DFW
Excellent 10.0

My entire flight experience was delightful. Was dry impressed with the staff both at Hartsfield-Jackson and DFW...and our flight crew was positively sublime.

JFK
MIA
Okay 5.3

Some of the flight attendants were rude and not very welcoming at all.

ZAG
CDG
Good 6.0

Old plane, bad food & old crew

JFK
ATL
Excellent 8.3

We had the best flight attendant ever! Her name was Sharon on Eandeavor / Delta Cnx, and she made the experience the best flight I've experienced. Thanks Sharon for being awesome!

window seat in back didn't have window

DTW
BNA
Mediocre 2.0

Sat on the plane on the tarmac for over an hour in the cold...

Sun, Apr 1
YOW
ORD
12h 24m
Thu, Apr 5
ORD
YOW
6h 04m
Trip: 5 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 26055 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
GRU
JFK
Mediocre 3.6

The only decent point was the food. Not great but at least edible.

Since check in in São Paulo was a complete chaos. There were only 2 people helping on check in (in machines) and these people were still not helping people (like me) with questions about on how to do check in in those machines. On the other hand to dispatch the bags there were almost 8 attendants to receive the bags. Ridiculous! I’ve tried calling American Airlines and Latam several times to assign a seat for me and they swore there were only middle seats but I know how airlines work to make extra money on these seats. At the end, they only gave me a middle seat option and I had to take I.t of course. On the plane I realized there were dozens of empty seats and yet they made sure not give them to me or anyone else. Unbelievable! Unfortunately I still have to use AA on my way back to Brazil. After this, I’ll chose another airlines for sure. Also, the 3,4,3 arrangement is ridiculous: there’s no corridor space making people touching you everything someone passes by your seat. And boy! Those seats are so uncomfortable and there’s no way to incline the chair so you can even have a little rest (because it’s impossible to even sleep on those seats). The crew were simply doing their jobs! No pleasure! No smile! No engaging with anyone unfortunately! They looked miserable and I asked for water and the flight attendant NEVER brought me anything. Seriously! Water is free!

SJU
PHL
Good 6.3

My screen was not responsive most of the time

JFK
MXP
Mediocre 2.6

Plane was old and dirty, seat pocket had junk in it. Seat was broken and couldn’t stay up. In flight movies were from few years back with a center tv and no head rest screen. Crew on overseas flights tend to be older in age and less tolerant..much better on continental on the same route.

SFO
DFW
Excellent 10.0

On time. Comfortable seat. Courteous crew. Easy transfer.

DFW
PBI
Okay 5.6

Free movies, and crew were helpful once we were in the air

Gate agent did not start forcing check in, which caused delay in boarding. Ground crew did not stock aircraft until 20 minutes after scheduled departure time. and DFW did the usual 20 minute taxi and then 15 minute hold prior to take off.

Show more results
*
Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an and someone from our team will get back to you promptly.

^
The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.