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Cheap flights from Chicago to Ottawa International

Compare Chicago to Ottawa International flight deals

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Flight deals from Chicago to Ottawa International Airport

Looking for a cheap last-minute deal or the best return flight from Chicago to Ottawa International Airport? If you want to travel next month, return fares start from P17,334. Find the lowest prices on one-way and return tickets right here.
Ottawa.P17,334 per passenger.Departing Thu, 16 Apr, returning Tue, 28 Apr.Return flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Chicago Midway on Thu, 16 Apr, arriving in Ottawa International.Inbound indirect flight with Porter Airlines, departs from Ottawa International on Tue, 28 Apr, arriving in Chicago Midway.Price includes taxes and charges.From P17,334, select.
Ottawa.P22,010 per passenger.Departing Thu, 16 Apr, returning Mon, 4 May.Return flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Chicago Midway on Thu, 16 Apr, arriving in Ottawa International.Inbound indirect flight with Porter Airlines, departs from Ottawa International on Mon, 4 May, arriving in Chicago Midway.Price includes taxes and charges.From P22,010, select.
Ottawa.P25,933 per passenger.Departing Tue, 26 May, returning Tue, 26 May.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Chicago O'Hare International on Tue, 26 May, arriving in Ottawa International.Inbound indirect flight with Air Canada, departs from Ottawa International on Tue, 26 May, arriving in Chicago O'Hare International.Price includes taxes and charges.From P25,933, select.
Ottawa.P26,077 per passenger.Departing Fri, 27 Mar, returning Fri, 17 Apr.Return flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Chicago Midway on Fri, 27 Mar, arriving in Ottawa International.Inbound indirect flight with Porter Airlines, departs from Ottawa International on Fri, 17 Apr, arriving in Chicago Midway.Price includes taxes and charges.From P26,077, select.
Ottawa.P27,155 per passenger.Departing Fri, 26 Jun, returning Wed, 1 Jul.Return flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Chicago Midway on Fri, 26 Jun, arriving in Ottawa International.Inbound indirect flight with Porter Airlines, departs from Ottawa International on Wed, 1 Jul, arriving in Chicago Midway.Price includes taxes and charges.From P27,155, select.
Ottawa.P27,478 per passenger.Departing Tue, 12 May, returning Tue, 2 Jun.Return flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Chicago Midway on Tue, 12 May, arriving in Ottawa International.Inbound indirect flight with Porter Airlines, departs from Ottawa International on Tue, 2 Jun, arriving in Chicago Midway.Price includes taxes and charges.From P27,478, select.
Ottawa.P28,383 per passenger.Departing Fri, 26 Jun, returning Sun, 28 Jun.Return flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Chicago Midway on Fri, 26 Jun, arriving in Ottawa International.Inbound indirect flight with Porter Airlines, departs from Ottawa International on Sun, 28 Jun, arriving in Chicago Midway.Price includes taxes and charges.From P28,383, select.
Ottawa.P32,179 per passenger.Departing Mon, 27 Jul, returning Wed, 29 Jul.Return flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Chicago Midway on Mon, 27 Jul, arriving in Ottawa International.Inbound indirect flight with Porter Airlines, departs from Ottawa International on Wed, 29 Jul, arriving in Chicago Midway.Price includes taxes and charges.From P32,179, select.
Ottawa.P32,571 per passenger.Departing Sun, 27 Sep, returning Sat, 3 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 Sat, 3 Oct, arriving in Chicago O'Hare International.Price includes taxes and charges.From P32,571, select.
Ottawa.P34,694 per passenger.Departing Mon, 27 Jul, returning Sun, 2 Aug.Return flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Chicago Midway on Mon, 27 Jul, arriving in Ottawa International.Inbound indirect flight with Porter Airlines, departs from Ottawa International on Sun, 2 Aug, arriving in Chicago Midway.Price includes taxes and charges.From P34,694, select.
Ottawa.P36,832 per passenger.Departing Sat, 10 Oct, returning Fri, 16 Oct.Return flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Chicago O'Hare International on Sat, 10 Oct, arriving in Ottawa International.Inbound indirect flight with Porter Airlines, departs from Ottawa International on Fri, 16 Oct, arriving in Chicago O'Hare International.Price includes taxes and charges.From P36,832, select.
Ottawa.P37,367 per passenger.Departing Sun, 20 Sep, returning Mon, 21 Sep.Return flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Chicago O'Hare International on Sun, 20 Sep, arriving in Ottawa International.Inbound indirect flight with Porter Airlines, departs from Ottawa International on Mon, 21 Sep, arriving in Chicago O'Hare International.Price includes taxes and charges.From P37,367, select.
Ottawa.P41,214 per passenger.Departing Fri, 20 Nov, returning Sat, 28 Nov.Return flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Chicago O'Hare International on Fri, 20 Nov, arriving in Ottawa International.Inbound indirect flight with Porter Airlines, departs from Ottawa International on Sat, 28 Nov, arriving in Chicago O'Hare International.Price includes taxes and charges.From P41,214, select.
Ottawa.P42,096 per passenger.Departing Fri, 27 Mar, returning Sat, 28 Mar.Return flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Chicago Midway on Fri, 27 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 P42,096, select.
Ottawa.P44,936 per passenger.Departing Thu, 10 Sep, returning Thu, 17 Sep.Return flight with United.Outbound direct flight with United departs from Chicago O'Hare International on Thu, 10 Sep, arriving in Ottawa International.Inbound direct flight with United departs from Ottawa International on Thu, 17 Sep, arriving in Chicago O'Hare International.Price includes taxes and charges.From P44,936, select.
Ottawa.P44,941 per passenger.Departing Tue, 26 May, returning Thu, 28 May.Return flight with United.Outbound direct flight with United departs from Chicago O'Hare International on Tue, 26 May, arriving in Ottawa International.Inbound direct flight with United departs from Ottawa International on Thu, 28 May, arriving in Chicago O'Hare International.Price includes taxes and charges.From P44,941, select.

Find the cheapest month to fly from Chicago to Ottawa International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Chicago to Ottawa International flights are currently cheapest in April.
Mar
from P42,096
Apr
from P17,334
May
from P25,933
Jun
from P28,383
Jul
from P32,179
Aug
Find prices
Sep
from P37,367
Oct
from P36,832
Nov
from P41,214
Dec
Find prices
Jan
Find prices
Feb
Find prices

Direct flights from Chicago to Ottawa International

Chicago to Ottawa International: Alternative routes

Compare routes from Chicago to Ottawa below. You may find an airport to fly into that's cheaper, faster, or easier than Ottawa International.

Ottawa International

11km from central Ottawa
ClosestCheapest
from P17,334
Search flights

Ottawa Gatineau

15km from central Ottawa
Search flights

Chicago to Ottawa: Flight information

The things to know before you go.
Cheapest flight foundP17,334
Cheapest month to flyApril
Average flight time2 hrs, 13 mins
Most popular airlineUnited
Average flights per week112

Check out these Ottawa hotels

Ready to plan your stay? Other travellers rate these Ottawa hotels for cleanliness, service and location.
The Don Club
0.85 km from city centre
P8,693
Per night
reStays Ottawa
0.57 km from city centre
P10,129
Per night
Fairfield Inn & Suites by Marriott Ottawa Airport
10.79 km from city centre
P11,485
Per night
The Don Club
0.85 km from city centre
P8,693
Per night
reStays Ottawa
0.57 km from city centre
P10,129
Per night
Fairfield Inn & Suites by Marriott Ottawa Airport
10.79 km from city centre
P11,485
Per night
Explore top-rated hotels

Finding cheap flights from Chicago to Ottawa International: Frequently asked questions

The best price we found for a return flight from Chicago to Ottawa International is P17,334. 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 13 minutes is the average flight time from Chicago to Ottawa International.
United, Republic Airways and Air New Zealand fly direct from Chicago to Ottawa International.
As of March 2026, there are 112 flights per week flying from Chicago to Ottawa International.
The cheapest month to fly from Chicago to Ottawa International is usually April.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Chicago to Ottawa International Airport on Thursday, 16 April 2026.
Yes – the average flight time is 2 hours and 13 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 International 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.

Flying from Chicago to Ottawa Macdonald-Cartier International Airport (YOW): What you need to know

  • Chicago O'Hare International Airport (ORD) is Chicago's main airport. Check out your options for reserving a flight from Chicago to Ottawa Macdonald-Cartier International Airport (YOW) jetting off from here.

  • Take a direct Chicago to Ottawa Macdonald-Cartier International Airport flight and you'll be travelling for around 2 hours.

  • The timezone in Ottawa is UTC-5, which is one hour ahead of Chicago. Ottawa Macdonald-Cartier International Airport is located in Ottawa.

  • Chicago O'Hare International Airport (ORD) to Ottawa Macdonald-Cartier International Airport (YOW) is the most popular route. There are 20 direct flights a week to choose from. If you have plans before you fly, take the last flight with United Airlines at 6:20pm. Opt for the first ORD to YOW departure with United Airlines at 7:15am if you want to get going earlier.

  • Give yourself plenty of time to make your flight from Chicago to YOW. Generally, it's best to arrive at least two hours before international departures and an hour ahead for domestic flights.

  • Popular months like July or holiday periods such as Christmas and spring break will mean longer queues at check-in and security. Be on the safe side and get to the terminal even earlier. Arriving two hours before domestic flights and up four hours ahead of international flights is a smart move.

Airports in Chicago

Chicago O'Hare International Airport (ORD)

  • Chicago O'Hare International Airport (ORD) offers an easy route to your destination. Nonstop flights from Chicago to Ottawa Macdonald-Cartier International Airport (YOW) take off from this terminal.

  • When leaving from ORD, you can take a direct flight from Chicago to Ottawa Macdonald-Cartier International Airport with United Airlines.

  • United ranks first in bookings for flights from ORD to YOW.

  • The top on-time carrier on this route is United. Its services land without delay 73.6% of the time.

  • Travelling from central Chicago to ORD takes around 45 minutes by public transport. If you drive, ride-share or get a taxi, you'll cover the 27 kilometers in 30 minutes or so, depending on traffic conditions.

  • Catching an early flight from Chicago to Ottawa Macdonald-Cartier International Airport? Avoid the hassle of rushing to the terminal (and sneak in some extra snooze time) by picking one of these hotels near Chicago O'Hare International Airport:

  • 70% of flights that depart Chicago O'Hare International Airport reach their destination on schedule.

  • The address for ORD is 10000 West O'Hare.

Chicago Midway International Airport (MDW)

  • Squeeze in an extra adventure with a stopover on your flight from Chicago to Ottawa Macdonald-Cartier International Airport. Here's where you can connect between Chicago Midway International Airport and YOW:

    • Orlando International Airport (MCO)

    • Ronald Reagan Washington National Airport (DCA)

    • Tampa International Airport (TPA)

  • With public transport, you can travel from central Chicago to MDW in about 30 minutes. The airport is roughly 16 kilometers away, and making the journey by car takes approximately 25 minutes.

  • Want to enjoy an extra night away before your Chicago to YOW flight? Relax in a hotel near Chicago Midway International Airport before your holiday officially starts. These stays are calling your name:

  • Chicago Midway International Airport has an on-time performance of 76%. This figure highlights how frequently flights that depart from this airport reach their destination on schedule.

  • MDW is located at 5700 South Cicero.

Chicago Rockford International Airport (RFD)

  • From central Chicago, RFD is around 145 kilometers away. It'll take you roughly 1 hour 40 minutes to reach the airport by car and 2 hours or so if you're on public transport.

  • Skip the morning rush on departure day — stay near Chicago Rockford International Airport and know you'll be at your gate with time to spare. Get comfy at one of these hotels the day before if you have an early Chicago to Ottawa Macdonald-Cartier International Airport flight:

  • Flights that depart from RFD land at their destination as scheduled 71% of the time.

  • The street address of Chicago Rockford International Airport is 2 Airport Cir.

About Ottawa Macdonald-Cartier International Airport (YOW)

  • If you're coming in on a late flight from Chicago to Ottawa Macdonald-Cartier International Airport, few things beat the convenience of staying near the terminal. Pick up your bags from the carousel and then be showered and relaxing soon after at one of these options near YOW:

  • For the best deal, book your vehicle around two weeks in advance of your Chicago to Ottawa Macdonald-Cartier International Airport flight.

  • YOW is located at 50 Airport Road.

Getting from Ottawa Macdonald-Cartier International Airport (YOW) to central Ottawa

  • Ottawa Macdonald-Cartier International Airport is around 14 kilometers from central Ottawa. It takes around 20 minutes or so to get to the city by car.

  • Travelling by public transport takes roughly 35 minutes.

How to find the cheapest flights from Chicago to Ottawa Macdonald-Cartier International Airport (YOW)

  • At the moment, P7,065 is the lowest price we've found for a one-way ticket from Chicago to Ottawa Macdonald-Cartier International Airport. The cheapest price for a return flight is P17,334. Keep in mind fares can change due to demand at the time of booking.

  • Don't wait until the last moment. You're more likely to walk away with cheap flights from Chicago to YOW if you book in advance. Airlines often have some great early bird deals.

  • If you're flexible with your travel dates, use the 'Whole month' tool. It'll give you the cheapest price across each month when searching for your Chicago to Ottawa Macdonald-Cartier International Airport ticket.

  • Stay on top of deals for plane tickets from Chicago to YOW by setting up a Price Alert. We'll send you an email or notification through the app when a new discounted fare appears.

  • Lock in a cheap flight from Chicago to Ottawa Macdonald-Cartier International Airport by using the search filters. Select your ideal departure time, duration and airlines, then sort the results by 'Cheapest' for the best deals.

The best time to fly from Chicago to Ottawa Macdonald-Cartier International Airport (YOW)

  • It's time to work out your travel dates for your flight from Chicago to Ottawa Macdonald-Cartier International Airport (YOW). July is the most popular month to visit Ottawa. If you like things a bit more low-key, think about going in January.

  • Before locking in your Chicago to YOW plane ticket, consider the type of weather you enjoy. July is the warmest month in Ottawa, with temperatures ranging from 14ºC (57ºF) to 28ºC (82ºF).

  • Search for cheap tickets from Chicago to Ottawa Macdonald-Cartier International Airport in January if you want to travel in cooler conditions. Temperatures are at their lowest then, ranging between -19ºC (-2ºF) and -2ºC (28ºF).

More about Ottawa

  • Start your Ottawa trip right by choosing the ideal place to stay. As soon as you've booked your flight from Chicago to Ottawa Macdonald-Cartier International Airport, explore our range of accommodation options including:

  • Rideau Canal National Historic Site and Parliament Hill are a couple of leading attractions to add to your Ottawa must-do list. Keep the sightseeing going at Rideau Canal, Locks 1 - 8 - Ottawa.

Explore more of Canada

  • Ottawa has loads to offer, but there are so many other parts of Canada just waiting to be explored. About 153 kilometers east of Ottawa, a trip to Montreal will keep your itinerary busy. Start with attractions like Cirque du Soleil - KURIOS, Montreal Botanical Garden and Saint Joseph's Oratory of Mount Royal.

  • Around 153 kilometers east of Ottawa, Laval is another favourite stop in Canada. Get a taste of what this destination has to offer at Le Cosmodôme, Parc De La Riviere Des Mille and Nature Centre (Le Centre de la nature).

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