What are the cheapest airlines flying from Chicago to Ottawa round-trip?

According to our current data, Porter Airlines (C$ 465), WestJet (C$ 521), and United Airlines (C$ 534) offers the cheapest pricing from Chicago to Ottawa. Porter Airlines is priced at 30% lower than the current average price of a flight leaving 3 months from now.

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

To fly one-way, consider booking your trip with Porter Airlines, which is currently one of the cheapest options available, starting at C$ 271. Air Canada flights start at C$ 295 while deals on United Airlines start at C$ 301 one-way.

What is the cheapest day to fly from Chicago to Ottawa?

Travelers seeking maximum savings on their Chicago to Ottawa flight should consider departing on Thursday afternoons when fares are most often at their lowest. Wednesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Ottawa ranges from 50.0 - 93.0 mm per month. June is typically the wettest month, when rainfall can reach 93.0 mm. February is typically the driest time to visit Ottawa when rainfall is around 50.0 mm.

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 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -10.0 C).

What are the most reliable airlines from Chicago to Ottawa?

Consider GoJet (92%), Air Canada (88%) or Air New Zealand (88%) when booking your flight. These represent the most reliable airlines when flying from Chicago to Ottawa.

What is the cheapest day to fly round-trip from Chicago to Ottawa?

Flying to your destination on a Saturday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to Ottawa. Check prices with Cheapflights to find a great deal for your trip.

How far in advance should I book a flight from Chicago to Ottawa?

Find a great deal and save up to 282% by booking at least 57 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Chicago to Ottawa within the next two weeks, with the cheapest ticket starting at C$ 654.

What is the cheapest month to fly from Chicago to Ottawa?

May can be a great time to fly to Ottawa from Chicago with a flight ticket averaging about C$ 671. Cheapflights users have found deals in the month of May for as cheap as C$ 320. The most expensive prices can be found in the month of November.

What airport do you fly into for flights to Ottawa from Chicago?

If you book a flight to Ottawa from Chicago, you will be flying to Ottawa, which is the city’s only airport. Ottawa (YOW) is located 10.6 km from the centre of Ottawa. There are 12 flights from Chicago to Ottawa per day from 0 different airlines.

Can I find deals for flights from Chicago to Ottawa that include hotel bookings?

Yes. In addition to deals on Chicago to Ottawa flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Chicago to Ottawa?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chicago to Ottawa.

Can I find deals for business class flights from Chicago to Ottawa?

Yes. Cheapflights offers flight deals from Chicago 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.

C$ 256+ Flights from Chicago to Ottawa

Cheapflights Tip: The best prices from Chicago to Ottawa are usually found in May or January, booked 57 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from Chicago to Ottawa

Round-trip from	C$ 465
One-way from	C$ 256
Popular in	November
Cheapest in	May
Average price	C$ 659

Porter Airlines
12/8-19/8
2 total stops
12h 47m total
Chicago to Ottawa

Search Deals

14/8
1 total stop
11h 10m total
Chicago to Ottawa

Search Deals

Highest demand for flights based on searches. 9% potential increase in price (C$ 94 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (C$ 18 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in June 2025

Search Deals

Find flight deals from Chicago to Ottawa

Cheapest flights from Chicago to Ottawa
Explore the most affordable flight options available from Chicago to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 June 2025.

Tue 12/89:40 a.m.MDW - YOW

1 stop6h 23mPorter Airlines

Tue 19/811:00 a.m.YOW - MDW

1 stop6h 24mPorter Airlines

Deal found 28/6C$ 465

Thu 14/89:55 a.m.ORD - YOW

1 stop13h 27mMultiple Airlines

Thu 21/85:55 a.m.YOW - ORD

1 stop14h 34mMultiple Airlines

Deal found 30/6C$ 494

Fri 12/95:30 p.m.ORD - YOW

1 stop20h 26mWestJet

Mon 15/97:50 a.m.YOW - ORD

1 stop9h 53mWestJet

Deal found 28/6C$ 521

Fri 12/91:55 p.m.ORD - YOW

Nonstop2h 11mUnited Airlines

Mon 15/95:25 p.m.YOW - ORD

Nonstop2h 29mUnited Airlines

Deal found 30/6C$ 534

Sun 10/87:04 a.m.ORD - YOW

1 stop16h 16mAir Canada

Mon 11/86:33 a.m.YOW - ORD

Nonstop2h 22mAir Canada

Deal found 28/6C$ 542

Thu 14/89:12 p.m.MDW - YOW

1 stop18h 54mMultiple Airlines

Thu 21/812:35 p.m.YOW - MDW

1 stop4h 49mMultiple Airlines

Deal found 30/6C$ 546

Tue 12/812:43 p.m.MDW - YOW

2 stops10h 39mDelta

Tue 19/85:55 a.m.YOW - MDW

2 stops12h 52mDelta

Deal found 28/6C$ 993

Sun 13/79:24 a.m.MDW - YOW

2 stops20h 21mWestJet

Mon 21/75:55 a.m.YOW - MDW

2 stops16h 47mWestJet

Deal found 30/6C$ 1,280

Best flights from Chicago to Ottawa
Discover carefully curated flight deals from Chicago to Ottawa that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 30 June 2025.

Tue 12/89:40 a.m.MDW - YOW

1 stop6h 23mPorter Airlines

Tue 19/811:00 a.m.YOW - MDW

1 stop6h 24mPorter Airlines

Deal found 28/6C$ 465

Thu 14/89:55 a.m.ORD - YOW

1 stop13h 27mMultiple Airlines

Thu 21/85:55 a.m.YOW - ORD

1 stop14h 34mMultiple Airlines

Deal found 30/6C$ 494

Fri 12/95:30 p.m.ORD - YOW

1 stop20h 26mWestJet

Mon 15/97:50 a.m.YOW - ORD

1 stop9h 53mWestJet

Deal found 28/6C$ 521

Fri 12/91:55 p.m.ORD - YOW

Nonstop2h 11mUnited Airlines

Mon 15/95:25 p.m.YOW - ORD

Nonstop2h 29mUnited Airlines

Deal found 30/6C$ 534

Sun 10/87:04 a.m.ORD - YOW

1 stop16h 16mAir Canada

Mon 11/86:33 a.m.YOW - ORD

Nonstop2h 22mAir Canada

Deal found 28/6C$ 542

Tue 12/812:43 p.m.MDW - YOW

2 stops10h 39mDelta

Tue 19/85:55 a.m.YOW - MDW

2 stops13h 42mDelta

Deal found 28/6C$ 993

Thu 14/89:12 p.m.MDW - YOW

1 stop18h 54mMultiple Airlines

Thu 21/812:35 p.m.YOW - MDW

1 stop4h 49mMultiple Airlines

Deal found 30/6C$ 546

Sun 13/79:24 a.m.MDW - YOW

2 stops20h 21mWestJet

Mon 21/75:55 a.m.YOW - MDW

2 stops16h 47mWestJet

Deal found 30/6C$ 1,280

Direct flights from Chicago to Ottawa
Explore direct flight options from Chicago to Ottawa based on user searches, and compare prices and availability for your desired travel dates. Data last updated 30 June 2025.

Fri 12/91:55 p.m.ORD - YOW

Nonstop2h 11mUnited Airlines

Mon 15/95:25 p.m.YOW - ORD

Nonstop2h 29mUnited Airlines

Deal found 30/6C$ 534

Tue 12/810:56 a.m.ORD - YOW

Nonstop2h 08mAir Canada

Tue 19/86:33 a.m.YOW - ORD

Nonstop2h 27mAir Canada

Deal found 28/6C$ 647

Last-minute flights from Chicago to Ottawa
Discover last-minute flight deals from Chicago to Ottawa. Data last updated 30 June 2025 and is based on user searches.

Sun 6/79:00 a.m.ORD - YOW

2 stops14h 22mWestJet

Mon 7/76:00 a.m.YOW - ORD

1 stop11h 44mWestJet

Deal found 28/6C$ 1,462

Tue 8/79:40 a.m.MDW - YOW

1 stop6h 23mPorter Airlines

Sat 12/75:15 p.m.YOW - MDW

1 stop16h 30mPorter Airlines

Deal found 28/6C$ 1,023

Tue 8/72:00 p.m.ORD - YOW

1 stop6h 20mAir Canada

Sat 12/75:25 p.m.YOW - ORD

Nonstop2h 28mAir Canada

Deal found 28/6C$ 1,063

Thu 10/75:05 a.m.ORD - YOW

1 stop11h 10mMultiple Airlines

Tue 15/73:50 p.m.YOW - ORD

1 stop18h 05mMultiple Airlines

Deal found 28/6C$ 646

Thu 10/79:12 p.m.MDW - YOW

1 stop18h 54mMultiple Airlines

Tue 15/711:00 a.m.YOW - MDW

1 stop6h 24mMultiple Airlines

Deal found 28/6C$ 709

Thu 10/71:56 p.m.ORD - YOW

Nonstop2h 10mUnited Airlines

Tue 15/75:25 p.m.YOW - ORD

Nonstop2h 28mUnited Airlines

Deal found 29/6C$ 1,072

Thu 10/712:43 p.m.MDW - YOW

2 stops10h 39mWestJet

Tue 15/76:00 a.m.YOW - MDW

2 stops16h 42mWestJet

Deal found 29/6C$ 1,472

Sun 13/76:15 p.m.ORD - YOW

Nonstop2h 20mUnited Airlines

Mon 21/75:25 p.m.YOW - ORD

Nonstop2h 28mUnited Airlines

Deal found 29/6C$ 669

Sun 13/78:40 a.m.ORD - YOW

1 stop4h 04mAir Canada

Mon 21/71:55 p.m.YOW - ORD

1 stop4h 42mAir Canada

Deal found 28/6C$ 691

Sun 13/79:24 a.m.MDW - YOW

2 stops20h 21mWestJet

Mon 21/75:55 a.m.YOW - MDW

2 stops16h 47mWestJet

Deal found 30/6C$ 1,280

Sat 26/75:05 a.m.ORD - YOW

1 stop11h 10mMultiple Airlines

Sat 2/811:20 a.m.YOW - ORD

2 stops13h 24mMultiple Airlines

Deal found 27/6C$ 583

Sun 27/79:40 a.m.MDW - YOW

1 stop5h 53mPorter Airlines

Fri 1/811:00 a.m.YOW - MDW

1 stop6h 24mPorter Airlines

Deal found 27/6C$ 512

One-way flights from Chicago to Ottawa
Search for one-way flight options from Chicago to Ottawa. Find affordable one-way fares based on user searches. Data last updated 30 June 2025.

Thu 14/85:05 a.m.ORD - YOW

1 stop11h 10mMultiple Airlines

Deal found 30/6C$ 256

Sun 10/89:40 a.m.MDW - YOW

1 stop5h 53mPorter Airlines

Deal found 29/6C$ 271

Sun 10/88:40 a.m.ORD - YOW

1 stop4h 04mAir Canada

Deal found 28/6C$ 295

Fri 18/71:56 p.m.ORD - YOW

Nonstop2h 10mUnited Airlines

Deal found 28/6C$ 301

Thu 14/89:40 a.m.MDW - YOW

1 stop8h 58mMultiple Airlines

Deal found 30/6C$ 363

Fri 18/78:15 p.m.ORD - YOW

2 stops27h 07mWestJet

Deal found 28/6C$ 432

Thu 14/89:31 a.m.MDW - YOW

2 stops13h 51mDelta

Deal found 30/6C$ 513

Sat 2/87:21 p.m.MDW - YOW

2 stops28h 20mWestJet

Deal found 27/6C$ 703

Cheapflights Fare Finder

Use the filters below to find and compare flights from Chicago to Ottawa that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Tue 12/8

9:40 a.m.-5:03 p.m.

1 stop6h 23m

Ottawa

Tue 19/8

11:00 a.m.-4:24 p.m.

1 stop6h 24m

C$ 465

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Thu 14/8

2:00 p.m.-12:22 a.m.

1 stop9h 22m

Ottawa

Thu 21/8

5:55 a.m.-7:29 p.m.

1 stop14h 34m

C$ 494

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Fri 12/9

5:30 p.m.-2:56 p.m.

1 stop20h 26m

Ottawa

Mon 15/9

7:50 a.m.-4:43 p.m.

1 stop9h 53m

C$ 521

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Fri 12/9

1:55 p.m.-5:06 p.m.

Nonstop2h 11m

Ottawa

Mon 15/9

5:25 p.m.-6:54 p.m.

Nonstop2h 29m

C$ 534

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Sun 10/8

7:04 a.m.-12:20 a.m.

1 stop16h 16m

Ottawa

Mon 11/8

6:33 a.m.-7:55 a.m.

Nonstop2h 22m

C$ 542

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Thu 14/8

9:12 p.m.-5:06 p.m.

1 stop18h 54m

Ottawa

Thu 21/8

12:35 p.m.-4:24 p.m.

1 stop4h 49m

C$ 546

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Tue 12/8

12:43 p.m.-12:22 a.m.

2 stops10h 39m

Ottawa

Tue 19/8

5:55 a.m.-6:37 p.m.

2 stops13h 42m

C$ 993

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Sun 13/7

9:24 a.m.-6:45 a.m.

2 stops20h 21m

Ottawa

Mon 21/7

5:55 a.m.-9:42 p.m.

2 stops16h 47m

C$ 1,280

ChicagoOttawa

ORD - YOW

ORDYOW

Chicago O'Hare Intl

Thu 14/8

5:05 a.m.-5:15 p.m.

1 stop11h 10m

C$ 256

ChicagoOttawa

MDW - YOW

MDWYOW

Chicago Midway

Sun 10/8

9:40 a.m.-4:33 p.m.

1 stop5h 53m

C$ 271

Flights are sorted by cheapest round-trip flights first.

Deals found on 30/6

Showing 1-10 of 16 results

Best time to book a flight from Chicago to Ottawa

Have a flexible travel schedule? Discover the best time to fly to Ottawa from Chicago 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.

Cheapflights Insights

Everything you need to know about your flight from Chicago to Ottawa

How far ahead should I book a flight from Chicago to Ottawa?

To ensure you get the cheapest price possible for a flight from Chicago to Ottawa, you should look to book at least 56 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, October is the cheapest month in which you can book a flight from Chicago to Ottawa (average of C$ 224). Flying from Chicago to Ottawa in December is currently the most expensive (average of C$ 326). 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 CHI to YOW?

When flying from Chicago to Ottawa, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 40% versus a flight in the morning.

Weekly flight availability from Chicago to Ottawa

The most flights from CHI to YOW are scheduled on a Monday (13 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (12 on average).

How much does it cost to fly round-trip from Chicago to Ottawa?

Reviews of airlines servicing Ottawa

Get a feel of what it's like to fly with Porter Airlines,Delta, andUnited Airlines from Chicago to Ottawa by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Porter Airlines

8.0

Very good

296 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mary,Jun 2025

FLL - YYZ

Fort Lauderdale staff was not helpful at all to try to accommodate my husband and myself to sit together. Also very surprised to get charged USD53 for each of our checked luggage, as when we booked the tickets online, the website indicated that our first checked luggage will be charged CAD50!! Very misleading!!!

Porter Airlines

8.0

Very good

296 reviews

Porter Airlines

8.0

Very good

296 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mary,Jun 2025

FLL - YYZ

Delta

8.0

Very good

7,973 reviews

Porter Airlines

8.0

Very good

296 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mary,Jun 2025

FLL - YYZ

United Airlines

7.4

Good

8,852 reviews

Porter Airlines

8.0

Very good

296 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mary,Jun 2025

FLL - YYZ

WestJet

7.2

Good

2,908 reviews

Porter Airlines

8.0

Very good

296 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mary,Jun 2025

FLL - YYZ

Air Canada

7.1

Good

9,654 reviews

Porter Airlines

8.0

Very good

296 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mary,Jun 2025

FLL - YYZ

Related info for your journey

What airport do you fly into for flights to Ottawa from Chicago?
If you book a flight to Ottawa from Chicago, you will be flying to Ottawa, which is the city’s only airport. Ottawa (YOW) is located 10.6 km from the centre of Ottawa. There are 12 flights from Chicago to Ottawa per day from 0 different airlines.
What are the cheapest airlines flying from Chicago to Ottawa round-trip?
According to our current data, Porter Airlines (C$ 465), WestJet (C$ 521), and United Airlines (C$ 534) offers the cheapest pricing from Chicago to Ottawa. Porter Airlines is priced at 30% lower than the current average price of a flight leaving 3 months from now.
What are the cheapest airlines to fly from Chicago to Ottawa one-way?
To fly one-way, consider booking your trip with Porter Airlines, which is currently one of the cheapest options available, starting at C$ 271. Air Canada flights start at C$ 295 while deals on United Airlines start at C$ 301 one-way.
What are the most reliable airlines from Chicago to Ottawa?
Consider GoJet (92%), Air Canada (88%) or Air New Zealand (88%) when booking your flight. These represent the most reliable airlines when flying from Chicago to Ottawa.
Can I find deals for flights from Chicago to Ottawa that include hotel bookings?
Yes. In addition to deals on Chicago to Ottawa flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Chicago to Ottawa?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chicago to Ottawa.
Can I find deals for business class flights from Chicago to Ottawa?
Yes. Cheapflights offers flight deals from Chicago 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 Chicago to Ottawa?
Currently, October is the cheapest month in which you can book a flight from Chicago to Ottawa (average of C$ 224). Flying from Chicago to Ottawa in December is currently the most expensive (average of C$ 326). 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

Gatineau

Brockville

Perth

Smiths Falls

Prescott

Pembroke

Wakefield

Lanark

Browse thousands of different options on Cheapflights for your next trip

Other flights to Ottawa

Fly with Cheapflights

How does Cheapflights help users find flights from Chicago to Ottawa?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Chicago to Ottawa. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Chicago to Ottawa?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Chicago to Ottawa for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Chicago to Ottawa with no change fees?

Yes! Cheapflights helps users easily find flights from Chicago to Ottawa with no change fees.

Can Cheapflights notify me if prices for flights from Chicago to Ottawa become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Chicago to Ottawa from C$ 256

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/8. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from Chicago to Ottawa are usually found in May or January, booked 57 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from Chicago to Ottawa

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Chicago to Ottawa

Cheapest flights from Chicago to OttawaExplore the most affordable flight options available from Chicago to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 June 2025.

Explore the most affordable flight options available from Chicago to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 June 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Chicago to Ottawa that are best for you.

Best time to book a flight from Chicago to Ottawa

Have a flexible travel schedule? Discover the best time to fly to Ottawa from Chicago with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Chicago to Ottawa

How far ahead should I book a flight from Chicago to Ottawa?

Use this chart to determine the optimal time to book a round-trip flight from Chicago to Ottawa. Price data was last updated on 27 June 2025.

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

What is the cheapest time of day to fly from CHI to YOW?

Find hourly flight availability from Chicago 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 30 June 2025.

Weekly flight availability from Chicago to Ottawa

Explore weekly flight availability from Chicago 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 30 June 2025.

How much does it cost to fly round-trip from Chicago to Ottawa?

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 30 June 2025.

Get a feel of what it's like to fly with Porter Airlines,Delta, andUnited Airlines from Chicago to Ottawa by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Chicago 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 Chicago?

What are the cheapest airlines flying from Chicago to Ottawa round-trip?

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

What are the most reliable airlines from Chicago to Ottawa?

Can I find deals for flights from Chicago to Ottawa that include hotel bookings?

How can I find direct flights from Chicago to Ottawa?

Can I find deals for business class flights from Chicago to Ottawa?

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

Travelling to a place near Chicago?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Chicago to Ottawa

See prices for flight routes from nearby airports that may be better suited for you.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Chicago to Ottawa?

Why should you use Cheapflights to find cheap flight tickets from Chicago to Ottawa?

Can Cheapflights find flights from Chicago to Ottawa with no change fees?

Can Cheapflights notify me if prices for flights from Chicago to Ottawa become cheaper?

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Chicago to Ottawa
Explore the most affordable flight options available from Chicago to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 June 2025.