Find cheap flights from Ottawa to Chicago

YOW - CHI

Find cheap flights from Ottawa to Chicago

Round-trip
Economy
Ottawa (YOW)
Chicago All airports
Fri. 31/7
Fri. 7/8
Any month
Compare vs. KAYAK |
Search hundreds of travel sites at once for deals on flights to Chicago

Good to know

Low season

February Best time to beat the crowds (12% less expensive on average)

High season

August Most popular time to fly (12% more expensive on average)

Average price of a round-trip

C$ 328 (avg. price over the last 2 weeks)

Good deal for a round-trip

C$ 281 or less

When to book flights from Ottawa to Chicago

Estimated round-trip price
Average price per month
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 C$ 304 or less.
  • The cheapest flight from Ottawa to Chicago was found, on average, 64 days before departure.
  • Book at least 3 weeks before departure in order to get a below-average price.
  • High season is considered to be July, August and September. The cheapest month to fly is February.
  • Morning departure is around 52% 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 flights

How long does a flight from Ottawa to Chicago take?

Which airlines provide the cheapest flights from Ottawa to Chicago?

What’s the cheapest day of the week to fly from Ottawa to Chicago?

Which airports will I be using when flying from Ottawa to Chicago?

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

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

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

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

Top 5 airlines serving Ottawa to Chicago

Scores according to KAYAK customer reviews

8.5
Air New Zealand
Overall score based on 2,830 reviews
8.6
Boarding
8.3
Comfort
8.9
Crew
8.5
Entertainment
8.2
Food
Airline reviews
Read more about Air New Zealand

Book cheap flights from Ottawa to Chicago (round-trip)

Airports
Origin
Ottawa
C$ 307
only
C$ 307
Destination
Chicago
C$ 342
only
C$ 342
C$ 307
only
C$ 307
Thu., 22 Oct.
YOW
Ottawa Airport
MDW
Chicago Midway Airport
4h 52m
Sun., 25 Oct.
MDW
Chicago Midway Airport
YOW
Ottawa Airport
3h 49m
C$ 307
Trip: 4 days
Based on null reviews
Tue., 1 Dec.
YOW
Ottawa Airport
ORD
Chicago O'Hare Airport
5h 06m
Fri., 18 Dec.
ORD
Chicago O'Hare Airport
YOW
Ottawa Airport
6h 37m
C$ 342
Trip: 18 days
Based on null reviews
Wed., 16 Sep.
YOW
Ottawa Airport
ORD
Chicago O'Hare Airport
2h 11m
Sat., 19 Sep.
ORD
Chicago O'Hare Airport
YOW
Ottawa Airport
6h 09m
C$ 343
Trip: 4 days
Based on null reviews
Tue., 1 Dec.
YOW
Ottawa Airport
ORD
Chicago O'Hare Airport
2h 11m
Fri., 18 Dec.
ORD
Chicago O'Hare Airport
YOW
Ottawa Airport
5h 34m
C$ 347
Trip: 18 days
Based on null reviews
Thu., 22 Oct.
YOW
Ottawa Airport
ORD
Chicago O'Hare Airport
2h 11m
Sun., 25 Oct.
ORD
Chicago O'Hare Airport
YOW
Ottawa Airport
6h 38m
C$ 349
Trip: 4 days
Based on null reviews
Thu., 22 Oct.
YOW
Ottawa Airport
ORD
Chicago O'Hare Airport
4h 11m
Sun., 25 Oct.
ORD
Chicago O'Hare Airport
YOW
Ottawa Airport
4h 34m
C$ 351
Trip: 4 days
Based on null reviews
Tue., 1 Dec.
YOW
Ottawa Airport
ORD
Chicago O'Hare Airport
4h 34m
Fri., 18 Dec.
ORD
Chicago O'Hare Airport
YOW
Ottawa Airport
1h 52m
C$ 357
Trip: 18 days
Based on null reviews
Thu., 22 Oct.
YOW
Ottawa Airport
ORD
Chicago O'Hare Airport
4h 47m
Sun., 25 Oct.
ORD
Chicago O'Hare Airport
YOW
Ottawa Airport
5h 14m
C$ 361
Trip: 4 days
Based on null reviews
Thu., 22 Oct.
YOW
Ottawa Airport
ORD
Chicago O'Hare Airport
2h 11m
Sun., 25 Oct.
ORD
Chicago O'Hare Airport
YOW
Ottawa Airport
12h 27m
C$ 377
Trip: 4 days
Based on null reviews
Thu., 22 Oct.
YOW
Ottawa Airport
ORD
Chicago O'Hare Airport
10h 17m
Sun., 25 Oct.
ORD
Chicago O'Hare Airport
YOW
Ottawa Airport
5h 14m
C$ 406
Trip: 4 days
Based on null reviews
Fri., 4 Dec.
YOW
Ottawa Airport
MDW
Chicago Midway Airport
11h 32m
Sun., 13 Dec.
MDW
Chicago Midway Airport
YOW
Ottawa Airport
12h 14m
C$ 422
Trip: 10 days
Based on null reviews
Fri., 4 Dec.
YOW
Ottawa Airport
MDW
Chicago Midway Airport
5h 00m
Sun., 13 Dec.
MDW
Chicago Midway Airport
YOW
Ottawa Airport
3h 34m
C$ 315
Trip: 10 days
Based on null reviews
Tue., 1 Dec.
YOW
Ottawa Airport
MDW
Chicago Midway Airport
4h 30m
Fri., 18 Dec.
MDW
Chicago Midway Airport
YOW
Ottawa Airport
3h 34m
C$ 343
Trip: 18 days
Based on null reviews
Thu., 22 Oct.
YOW
Ottawa Airport
ORD
Chicago O'Hare Airport
2h 08m
Sun., 25 Oct.
ORD
Chicago O'Hare Airport
YOW
Ottawa Airport
1h 50m
C$ 382
Trip: 4 days
Based on null reviews
Fri., 4 Dec.
YOW
Ottawa Airport
ORD
Chicago O'Hare Airport
8h 27m
Sun., 13 Dec.
ORD
Chicago O'Hare Airport
YOW
Ottawa Airport
11h 04m
C$ 422
Trip: 10 days
Based on null reviews
Sat., 22 Aug.
YOW
Ottawa Airport
ORD
Chicago O'Hare Airport
8h 19m
Sun., 30 Aug.
ORD
Chicago O'Hare Airport
YOW
Ottawa Airport
5h 00m
C$ 405
Trip: 9 days
Based on null reviews
Thu., 22 Oct.
YOW
Ottawa Airport
ORD
Chicago O'Hare Airport
11h 15m
Sun., 25 Oct.
ORD
Chicago O'Hare Airport
YOW
Ottawa Airport
8h 58m
C$ 451
Trip: 4 days
Based on null reviews
Sun., 9 Aug.
YOW
Ottawa Airport
ORD
Chicago O'Hare Airport
8h 19m
Fri., 21 Aug.
ORD
Chicago O'Hare Airport
YOW
Ottawa Airport
4h 23m
C$ 492
Trip: 13 days
Based on null reviews
Fri., 4 Dec.
YOW
Ottawa Airport
ORD
Chicago O'Hare Airport
10h 15m
Sun., 13 Dec.
ORD
Chicago O'Hare Airport
YOW
Ottawa Airport
7h 54m
C$ 497
Trip: 10 days
Based on null reviews
Tue., 1 Dec.
YOW
Ottawa Airport
MDW
Chicago Midway Airport
10h 46m
Fri., 18 Dec.
MDW
Chicago Midway Airport
YOW
Ottawa Airport
8h 25m
C$ 520
Trip: 18 days
Based on null reviews
Show more results

Book cheap flights from Ottawa to Chicago (one-way)

Airports
Origin
Ottawa
C$ 180
only
C$ 180
Destination
Chicago
C$ 195
only
C$ 195
C$ 180
only
C$ 180
Wed., 23 Sep.
YOW
Ottawa Airport
MDW
Chicago Midway Airport
6h 27m
C$ 180
Based on null reviews
Wed., 23 Sep.
YOW
Ottawa Airport
ORD
Chicago O'Hare Airport
5h 13m
C$ 195
Based on null reviews
Wed., 23 Sep.
YOW
Ottawa Airport
ORD
Chicago O'Hare Airport
4h 11m
C$ 199
Based on null reviews
Fri., 31 Jul.
YOW
Ottawa Airport
ORD
Chicago O'Hare Airport
4h 10m
C$ 200
Based on null reviews
Wed., 23 Sep.
YOW
Ottawa Airport
ORD
Chicago O'Hare Airport
4h 47m
C$ 208
Based on null reviews
Wed., 23 Sep.
YOW
Ottawa Airport
ORD
Chicago O'Hare Airport
10h 17m
C$ 230
Based on null reviews
Fri., 31 Jul.
YOW
Ottawa Airport
ORD
Chicago O'Hare Airport
12h 05m
C$ 236
Based on null reviews
Wed., 23 Sep.
YOW
Ottawa Airport
MDW
Chicago Midway Airport
7h 00m
C$ 239
Based on null reviews
Fri., 31 Jul.
YOW
Ottawa Airport
ORD
Chicago O'Hare Airport
9h 05m
C$ 318
Based on null reviews
Wed., 23 Sep.
YOW
Ottawa Airport
ORD
Chicago O'Hare Airport
5h 50m
C$ 239
Based on null reviews
Tue., 4 Aug.
YOW
Ottawa Airport
ORD
Chicago O'Hare Airport
17h 50m
C$ 797
Based on null reviews
Fri., 31 Jul.
YOW
Ottawa Airport
ORD
Chicago O'Hare Airport
27h 50m
C$ 831
Based on null reviews
Show more results
*
Prices are per person, are for e–tickets and include all taxes & fees in CAD.

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.
-
1
  • Round-trip
  • One-way
  • Multi-city
  • Trip Builder
  • Economy
  • Premium Economy
  • Business
  • First
  • Multiple
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First