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Cheap flight tickets from Chicago to Ottawa

Compare Chicago to Ottawa flight deals

Find the cheapest month or even day of the year to fly to Ottawa

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Flight deals from Chicago to Ottawa

Looking for a cheap last-minute deal or the best return flight from Chicago to Ottawa? Find the lowest prices on one-way and return tickets right here.
Ottawa.RM1,174 per passenger.Departing Wed, 1 Apr, returning Wed, 8 Apr.Return flight with Spirit Airlines and Porter Airlines.Outbound indirect flight with Spirit Airlines, departs from Chicago O'Hare International on Wed, 1 Apr, arriving in Ottawa International.Inbound indirect flight with Porter Airlines, departs from Ottawa International on Wed, 8 Apr, arriving in Chicago O'Hare International.Price includes taxes and charges.From RM1,174, select.
Ottawa.RM1,278 per passenger.Departing Thu, 26 Mar, returning Thu, 9 Apr.Return flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Chicago Midway on Thu, 26 Mar, arriving in Ottawa International.Inbound indirect flight with Porter Airlines, departs from Ottawa International on Thu, 9 Apr, arriving in Chicago Midway.Price includes taxes and charges.From RM1,278, select.
Ottawa.RM1,473 per passenger.Departing Wed, 15 Apr, returning Fri, 1 May.Return flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Chicago Midway on Wed, 15 Apr, arriving in Ottawa International.Inbound indirect flight with Porter Airlines, departs from Ottawa International on Fri, 1 May, arriving in Chicago Midway.Price includes taxes and charges.From RM1,473, select.
Ottawa.RM1,486 per passenger.Departing Tue, 19 May, returning Sat, 23 May.Return flight with Spirit Airlines and Porter Airlines.Outbound indirect flight with Spirit Airlines, departs from Chicago O'Hare International on Tue, 19 May, arriving in Ottawa International.Inbound indirect flight with Porter Airlines, departs from Ottawa International on Sat, 23 May, arriving in Chicago O'Hare International.Price includes taxes and charges.From RM1,486, select.
Ottawa.RM1,640 per passenger.Departing Thu, 26 Mar, returning Sat, 28 Mar.Return flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Chicago Midway on Thu, 26 Mar, arriving in Ottawa International.Inbound indirect flight with Porter Airlines, departs from Ottawa International on Sat, 28 Mar, arriving in Chicago Midway.Price includes taxes and charges.From RM1,640, select.
Ottawa.RM1,671 per passenger.Departing Sat, 6 Jun, returning Fri, 12 Jun.Return flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Chicago Midway on Sat, 6 Jun, arriving in Ottawa International.Inbound indirect flight with Porter Airlines, departs from Ottawa International on Fri, 12 Jun, arriving in Chicago Midway.Price includes taxes and charges.From RM1,671, select.
Ottawa.RM1,758 per passenger.Departing Mon, 11 May, returning Mon, 1 Jun.Return flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Chicago Midway on Mon, 11 May, arriving in Ottawa International.Inbound indirect flight with Porter Airlines, departs from Ottawa International on Mon, 1 Jun, arriving in Chicago Midway.Price includes taxes and charges.From RM1,758, select.
Ottawa.RM1,919 per passenger.Departing Sun, 27 Sep, returning Tue, 13 Oct.Return flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Chicago O'Hare International on Sun, 27 Sep, arriving in Ottawa International.Inbound indirect flight with Porter Airlines, departs from Ottawa International on Tue, 13 Oct, arriving in Chicago Midway.Price includes taxes and charges.From RM1,919, select.

Find the cheapest month to fly from Chicago to Ottawa

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Chicago to Ottawa flights are currently cheapest in April.
Feb
from RM2,926
Mar
from RM1,640
Apr
from RM1,174
May
from RM1,486
Jun
from RM1,671
Jul
from RM2,577
Aug
from RM1,922
Sep
from RM2,487
Oct
Find prices
Nov
from RM2,348
Dec
Find prices
Jan
from RM2,524

Direct flights from Chicago to Ottawa

Alternative Chicago to Ottawa routes

Looking for the cheapest, fastest or easiest route from Chicago to Ottawa? You could fly into the following airports instead.

Ottawa International

11km from central Ottawa
ClosestCheapest
from RM1,174
Search flights

Ottawa Gatineau

15km from central Ottawa
Search flights

Chicago to Ottawa: Flight information

The things to know before you go.
Cheapest flight foundRM1,174
Cheapest month to flyApril
Average flight time2 hrs, 12 mins
Most popular airlineUnited
Average flights per week111

Finding cheap flights from Chicago to Ottawa: Frequently asked questions

There are 2 airports in Ottawa: Ottawa International and Ottawa Gatineau.
The best price we found for a return flight from Chicago to Ottawa is RM1,174. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
2 hours and 12 minutes is the average flight time from Chicago to Ottawa.
United, Republic Airways and Air New Zealand fly direct from Chicago to Ottawa.
As of February 2026, there are 111 flights per week flying from Chicago to Ottawa.
The cheapest month to fly from Chicago to Ottawa is usually April.
If you're flying from Chicago, the cheapest airport near Ottawa is Ottawa International – which is 11.2 km away from the centre of Ottawa. We've found flights into this airport from RM1,174.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Chicago to Ottawa on Wednesday, 1 April 2026.
Yes – the average flight time is 2 hours and 12 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Ottawa but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Ottawa is around 40 days in advance, so don’t leave your flight to the last minute.
In February, the average temperature is usually around -10°C. July is typically the warmest month in Ottawa, when it usually averages around 25°C. You can expect the least rain in February. The coldest month is January, with temperatures averaging -16°C. The rainiest month is June.
The cheapest airline that flies to Ottawa is Spirit Airlines. And the cheapest airline that flies to Ottawa Gatineau Airport is United.

Flying from Chicago to Ottawa: what you need to know

  • Chicago has a couple of airports where you can set off on your adventure. Check out your options for reserving a flight from Chicago to Ottawa departing from O'Hare International Airport (ORD) or Chicago Midway International Airport (MDW).

  • Touch down at Ottawa's primary gateway, Ottawa/Macdonald-Cartier International Airport (YOW).

  • The average length of a direct Chicago to Ottawa flight is 2 hours 5 minutes.

  • Ottawa's timezone is UTC-4, making Ottawa one hour ahead of Chicago.

  • With 21 weekly flights between the two airports, O'Hare International Airport (ORD) to Ottawa/Macdonald-Cartier International Airport (YOW) is the busiest route. Board the earliest flight from Chicago to Ottawa with United Airlines at 07:15. If you'd like to get more out of your day before jetting off, the latest departure from ORD to YOW is with United Airlines at 18:20.

  • To ensure you don't miss your Chicago to Ottawa flight, allow plenty of time to check in and find your gate. Turning up two hours before international departures and an hour before domestic flights is the general travel rule.

  • Be prepared for longer queues during popular months like August. Arriving up to four hours ahead of international flights and two hours for domestic departures will give you plenty of time for security and boarding.

How to find the cheapest flights from Chicago to Ottawa

  • Score cheap Chicago to Ottawa flights by booking two months ahead. According to our research, that's the ideal time for finding the biggest deals.

  • The best month for picking up cheap plane tickets from Chicago to Ottawa is May. Use the 'Whole month' tool to compare prices, then choose the dates with the lowest fares.

  • There's no need to check every day to see if fares have dropped when you create a Price Alert. We'll update you when a better deal comes up on cheap flights from Chicago to Ottawa.

  • Choose your preferred departure and arrival times, airlines and number of stops by using the filters. Alternatively, sort your Chicago to Ottawa flight results by 'Fastest,' 'Cheapest' or 'Best.'

Flying from Chicago

O'Hare International Airport (ORD)

  • Depart from O'Hare International Airport (ORD) on a nonstop flight from Chicago to Ottawa. From ORD, you can fly directly into Ottawa/Macdonald-Cartier International Airport (YOW).

  • United Airlines is a leading airline that offers direct Chicago to Ottawa plane tickets from ORD.

  • We make it a cinch to book a Chicago to Ottawa flight with a stopover. To see the options leaving from O'Hare International Airport, uncheck 'Direct flights only.' Next, pick a flight with a stop long enough to tour the city of your choice. Popular stopovers include:

    • Newark Liberty International Airport (EWR)

    • Pearson International Airport (YYZ)

    • Montreal-Pierre Elliott Trudeau International Airport (YUL)

  • The journey from central Chicago to ORD takes around 55 minutes by public transport. If you ride-share, drive or grab a cab, you'll cover the 26 kilometres in 35 minutes or so, depending on traffic conditions.

  • Searching for a handy hotel close to O'Hare International Airport? If you're catching an early flight from Chicago to Ottawa, these stays will put you moments from your departure gate:

  • 74.85% of flights that depart O'Hare International Airport make it to their destination on time.

  • You'll find ORD at 10000 West O'Hare.

Chicago Midway International Airport (MDW)

  • Split up your Chicago to Ottawa flight with a stop so you can recharge or tick another place off your list. Some popular stopovers between Chicago Midway International Airport and Ottawa include:

    • Ronald Reagan National Airport (DCA)

    • Orlando International Airport (MCO)

    • Tampa International Airport (TPA)

  • MDW is around 14 kilometres from central Chicago. It'll take you 20 minutes or so to get to the airport if you're driving from the city centre. Public transport takes roughly 45 minutes.

  • Start your holiday sooner with an additional night away from home. Before your flight from Chicago to Ottawa, unwind in one of these hotels near Chicago Midway International Airport:

  • When it comes to keeping flights punctual, Chicago Midway International Airport has an on-time arrival rate of 78%.

  • You'll find MDW at 5700 South Cicero.

Arriving in Ottawa

Ottawa Gatineau Airport (YND)

  • Ottawa Gatineau Airport (YND) to central Ottawa takes about 20 minutes to reach by car. The centre is roughly 14 kilometres away.

  • If you're taking public transport, expect a journey time of roughly 1 hour 40 minutes.

  • Book a hotel near YND if you're coming in on a late flight from Chicago to Ottawa. Pick one of these accommodation options and skip the long transfer:

  • Venture beyond Ottawa and explore places that aren't found in every travel guide with your own wheels. You can grab an Ottawa Gatineau Airport rental car from Hertz.

  • Book your vehicle from Ottawa Gatineau Airport a few weeks before your departure date to lock in the best possible deal. If you're travelling during a busy period, it's smart to book your Chicago to Ottawa flight even earlier.

Ottawa/Macdonald-Cartier International Airport (YOW)

  • Central Ottawa is around 11 kilometres from Ottawa/Macdonald-Cartier International Airport (YOW). After your flight from Chicago to Ottawa has landed and you've made your way to arrivals, expect a drive of about 20 minutes.

  • You can expect the trip to take about 45 minutes on public transport.

  • The quickest way to get to where you're going is with an Ottawa/Macdonald-Cartier International Airport rental car. Grab a set of wheels from Routes Car Rentals, Alamo or Budget and set off in the blink of an eye.

  • Don't pay more than you need to. Reserving your ride two weeks ahead of your arrival at YOW will help you save.

  • Ottawa/Macdonald-Cartier International Airport can be found at 50 Airport Road.

Best time to go to Ottawa

  • Have a think about your trip dates before locking in your flight from Chicago to Chicago. The city buzzes in high season, but prices are typically higher and top attractions can be busy. Visit Chicago in low season if you prefer a quieter vibe.

  • Before locking in your Chicago to Ottawa tickets, consider the kind of weather forecast you're hoping for. July is the warmest month in Ottawa, with temperatures ranging from 13ºC (55ºF) to 27ºC (81ºF).

  • If you want to travel in cooler conditions, look for a cheap flight from Chicago to Ottawa in January when temperatures average between -19ºC (-2ºF) and -2ºC (28ºF).

More about Ottawa

  • When it comes to searching for somewhere to rest your head, you'll find the most popular stays in Ottawa right here. Browse these options after locking in your flight from Chicago to Ottawa:

  • Parliament Hill and Rideau Canal are just the start of the top attractions to put on your Ottawa itinerary. Keep the momentum going by heading to National Gallery of Canada.

Explore more of Canada

  • You've done Ottawa, now it's time to discover other corners of Canada. Travel around 354 kilometres south-west to Toronto to tick off its leading attractions. From CN Tower to Royal Ontario Museum and Go Tours Canada - Distillery District, your itinerary will be busy.

  • If you're ready to explore another great destination in Canada, consider Montreal, roughly 153 kilometres east of Ottawa. Mount Royal Park, Montreal Botanical Garden and Saint Joseph's Oratory of Mount Royal are among its highlights.

Plan the rest of your trip from Chicago to Ottawa

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.