Title: CA $331 Cheap Flights from Ottawa (YOW) to Chicago (ORD) - Expedia.ca ![City of Chicago. Image of Chicago downtown and Chicago River with bridges at sunny summer day](https://images.trvl-media.com/place/178248/e6aa83ce-7ad8-43a5-9d1d-b055eefa7e78.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://a.travel-assets.com/travel-assets-manager/fallback-images-brand/bex_flights_v2.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # CA $331 Cheap Flights from Ottawa (YOW) to Chicago (ORD) [View CA $331 flight on Mon, Nov 17, 2025](https://expedia.ca/Flights-Search?trip=oneway&leg1=from:YOW,to:ORD,departure:17/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:330.29&airProductToken=AQqiAQo1CNWCARIEMzY5MRjYswEgxI0BKJ-t_QIwhq79AjhHQABYAWoHRUNPTk9NWXIIR05BNUEyVEcKNAjVggESBDEyNjEYxI0BIKEDKISv_QIwoLD9AjhHQAFYAWoHRUNPTk9NWXIIR05BNUEyVEcKMwjVggESBDU3NDEYoQMgrhwot7P9AjCttP0COEdAAVgBagdFQ09OT01ZcghHQVgyQUtEUxIKCAEQARgBKgJVQRgBIgQIARABKAIoAygEMAE) - [Roundtrip](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only ## Popular airlines from Ottawa International Airport (YOW) to Chicago O'Hare International Airport (ORD) - ![WestJet](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_WS.svg) WestJet [](https://www.expedia.ca/Flights-Search?leg1=from:yow,to:ord,departure:21/10/2025TANYT&leg2=from:ord,to:yow,departure:28/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"WS"}}]) - ![United](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United [](https://www.expedia.ca/Flights-Search?leg1=from:yow,to:ord,departure:21/10/2025TANYT&leg2=from:ord,to:yow,departure:28/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![Air Canada](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AC.svg) Air Canada [](https://www.expedia.ca/Flights-Search?leg1=from:yow,to:ord,departure:21/10/2025TANYT&leg2=from:ord,to:yow,departure:28/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AC"}}]) - ![Porter Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_PD.svg) Porter Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:yow,to:ord,departure:21/10/2025TANYT&leg2=from:ord,to:yow,departure:28/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"PD"}}]) ![notification illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* ![deals illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 30% on select hotels after you book a flight\* ![trophy illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.ca/login) ## Cheap flights from Ottawa (YOW) to Chicago (ORD) Prices were available within the past 7 days and start at CA $331 for one-way flights and CA $454 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Tue, Oct 28 - Wed, Oct 29 YOW Ottawa ORD Chicago CA $454 Roundtrip found 1 day ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YOW,to:ORD,departure:28/10/2025TANYT&leg2=from:ORD,to:YOW,departure:29/10/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:453.85&airProductToken=AQo3CjUIwYYBEgQzNTUzGNizASCuHCi6y_sCMNvM-wI4VEAAWAFqCFNUQU5EQVJEcghUTkEyQVVURwpvCjUIwYYBEgQ0NDU5GK4cIMSNASj20fsCMPXS-wI4VEAAWAFqCFNUQU5EQVJEcghUTkEyQVVURwo2CMGGARIENDM5ORjEjQEg2LMBKKDU-wIw_NT7AjhUQAFYAWoIU1RBTkRBUkRyCFROQTJBVVRHEgoIARABGAEqAkFDGAEiBAgBEAEoAigDKAQwDQ) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Thu, Oct 16 - Tue, Oct 21 YOW Ottawa ORD Chicago CA $468 Roundtrip found 6 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YOW,to:ORD,departure:16/10/2025TANYT&leg2=from:ORD,to:YOW,departure:21/10/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:467.51&airProductToken=AQo3CjUI1YIBEgQzNjU5GNizASCuHCjFxPoCMNrF-gI4TkAAWAFqCEVDT0JBU0lDcghHTkE0QTJCTgplCjAIwYYBEgM1MjAYrhwgmF0olPn6AjCa-voCOEdAAFgBagVCQVNJQ3IIR05BNEEyQkEKMQjBhgESAzQ3NxiYXSDYswEo4fr6AjCP-_oCOEdAAVgBagVCQVNJQ3IIR05BNEEyQkESCggBEAEYASoCVUEYASIECAEQASgCKAMoBDAB) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Fri, Oct 17 - Sat, Oct 25 YOW Ottawa ORD Chicago CA $491 Roundtrip found 3 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YOW,to:ORD,departure:17/10/2025TANYT&leg2=from:ORD,to:YOW,departure:25/10/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:490.91&airProductToken=AQpFCiEI1YIBEgQ0NDU1GNizASCIGCjh0PoCMMjR-gI4TkAAWAEKIAjVggESBDE3MzgYiBggrhwogtL6AjD_0voCOE5AAVgBCiMKIQjVggESBDQ1NzQYrhwg2LMBKJan-wIwnKj7AjhOQABYARIKCAEQARgBKgJVQRgBIgQIARABKAQwAQ) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Sat, Nov 1 - Sun, Nov 2 YOW Ottawa ORD Chicago CA $496 Roundtrip found 5 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YOW,to:ORD,departure:01/11/2025TANYT&leg2=from:ORD,to:YOW,departure:02/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:495.63&airProductToken=AQpxCjcI1YIBEgQ0NDU1GNizASCIGCjC-fsCMLL6-wI4TkAAWAFqCjFfYmFzaWNlY29yCEdBQTJBRkJTCjYI1YIBEgQxNzM4GIgYIK4cKPv6-wIw-_v7AjhOQABYAWoKMV9iYXNpY2Vjb3IIR0FBMkFGQlMKOQo3CNWCARIEMzUzNhiuHCDYswEogID8AjD-gPwCOE5AAFgBagoxX2Jhc2ljZWNvcghHQUEyQUZCUxIKCAEQARgBKgJVQRgBIgQIARABKAIoAygEMAs) ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Thu, Oct 23 - Fri, Oct 24 YOW Ottawa ORD Chicago CA $502 Roundtrip found 1 day ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YOW,to:ORD,departure:23/10/2025TANYT&leg2=from:ORD,to:YOW,departure:24/10/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:501.33&airProductToken=AQpnCjIIwYYBEgM0MzkY2LMBIJjOASjLjfsCMJOO-wI4R0AAWAFqBUJBU0lDcghHTkE0QTJCQQoxCMGGARIDNTAzGJjOASCuHCj_jvsCMPGP-wI4R0ABWAFqBUJBU0lDcghHTkE0QTJCQQpnCjEIwYYBEgM1MTAYrhwgmM4BKLWg-wIwnKH7AjhHQABYAWoFQkFTSUNyCEdOQTRBMkJBCjIIwYYBEgM0NzIYmM4BINizASjuofsCMK6i-wI4R0ABWAFqBUJBU0lDcghHTkE0QTJCQRIKCAEQARgBKgJBQxgBIgQIARABKAIoAygEMA0) ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Thu, Oct 23 - Fri, Oct 24 YOW Ottawa ORD Chicago CA $503 Roundtrip found 1 day ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YOW,to:ORD,departure:23/10/2025TANYT&leg2=from:ORD,to:YOW,departure:24/10/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:502.95&airProductToken=AQpnCjIIwYYBEgM0MzkY2LMBIJjOASjLjfsCMJOO-wI4R0AAWAFqBUJBU0lDcghHTkE0QTJCQQoxCMGGARIDNTAzGJjOASCuHCj_jvsCMPGP-wI4R0ABWAFqBUJBU0lDcghHTkE0QTJCQQpvCjUI1YIBEgQxMjA5GK4cIMSNASjvoPsCMP2h-wI4TkAAWAFqCEVDT0JBU0lDcghHTkE0QTJCTgo2CNWCARIENDQwMxjEjQEg2LMBKJql-wIw96X7AjhOQAFYAWoIRUNPQkFTSUNyCEdOQTRBMkJOEgoIARABGAEqAkFDGAEiBAgBEAEoAigDKAQwAQ) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Thu, Oct 23 - Fri, Oct 24 YOW Ottawa ORD Chicago CA $511 Roundtrip found 1 day ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YOW,to:ORD,departure:23/10/2025TANYT&leg2=from:ORD,to:YOW,departure:24/10/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:510.75&airProductToken=AQpvCjYI1YIBEgQzNjI5GNizASDEjQEo_Y37AjDejvsCOE5AAFgBaghFQ09CQVNJQ3IIR05BNEEyQk4KNQjVggESBDIwMjIYxI0BIK4cKLCR-wIwy5L7AjhOQAFYAWoIRUNPQkFTSUNyCEdOQTRBMkJOCmcKMQjBhgESAzUxMBiuHCCYzgEotaD7AjCcofsCOEdAAFgBagVCQVNJQ3IIR05BNEEyQkEKMgjBhgESAzQ3MhiYzgEg2LMBKO6h-wIwrqL7AjhHQAFYAWoFQkFTSUNyCEdOQTRBMkJBEgoIARABGAEqAlVBGAEiBAgBEAEoAigDKAQwAQ) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Thu, Oct 23 - Fri, Oct 24 YOW Ottawa ORD Chicago CA $513 Roundtrip found 1 day ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YOW,to:ORD,departure:23/10/2025TANYT&leg2=from:ORD,to:YOW,departure:24/10/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:512.21&airProductToken=AQpvCjYI1YIBEgQzNjI5GNizASDEjQEo_Y37AjDejvsCOE5AAFgBaghFQ09CQVNJQ3IIR05BNEEyQk4KNQjVggESBDI0NzkYxI0BIK4cKKyP-wIwypD7AjhOQAFYAWoIRUNPQkFTSUNyCEdOQTRBMkJOCm8KNQjVggESBDE2NTgYrhwgxI0BKNSZ-wIw25r7AjhOQABYAWoIRUNPQkFTSUNyCEdOQTRBMkJOCjYI1YIBEgQ0NDQyGMSNASDYswEoiJv7AjDxm_sCOE5AAVgBaghFQ09CQVNJQ3IIR05BNEEyQk4SCggBEAEYASoCVUEYASIECAEQASgCKAMoBDAB) ![WestJet](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/WS.gif) Sat, Oct 18 - Thu, Oct 30 YOW Ottawa ORD Chicago CA $762 Roundtrip found 1 day ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YOW,to:ORD,departure:18/10/2025TANYT&leg2=from:ORD,to:YOW,departure:30/10/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:761.47&airProductToken=AQpECiAI16YBEgM2MTEY2LMBIJgWKNjV-gIw5tf6AjhMQABYAQogCNemARIEMTU4OBiYFiCuHCjH2foCMJfb-gI4TEABWAEKRAogCNemARIEMTYxMRiuHCCYFiiI4fsCMPPi-wI4TEAAWAEKIAjXpgESAzYxNBiYFiDYswEoyOP7AjC45fsCOExAAVgBEgoIARABGAEqAldTGAEiBAgBEAEoBDAB) ![Porter Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/PD.gif) Fri, Nov 28 - Sun, Nov 30 YOW Ottawa ORD Chicago CA $875 Roundtrip found 20 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YOW,to:ORD,departure:28/11/2025TANYT&leg2=from:ORD,to:YOW,departure:30/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:874.54&airProductToken=AQpuCjUI0IgBEgMxNTAY2LMBIJjOASjho_4CMKqk_gI4UEAAWAFqCFNUQU5EQVJEcghQNk4wWk9aUwo1CNCIARIENjAwNRiYzgEgrhwogKb-AjDzpv4COFBAAVgBaghTVEFOREFSRHIIUDZOMFpPWlMKbgo1CNCIARIENjAwNxiuHCCYzgEos7v-AjCYvP4COFNAAFgBaghTVEFOREFSRHIIUzROMVpPWlMKNQjQiAESAzE2MxiYzgEg2LMBKLi-_gIw_b7-AjhMQAFYAWoIU1RBTkRBUkRyCEwyQTBaUkhTEgoIARABGAEqAlBEGAEiBAgBEAEoAigDKAQwAQ) ## Find the cheapest month to fly from Ottawa (YOW) to Chicago (ORD) ### September is typically the cheapest month to fly From CA $448 - CA $819 per traveller. ## Alternative airports near Chicago Prices were available within the past 7 days. Prices and availability are subject to change. [](https://www.expedia.ca/Flights-Search?leg1=from:YOW,to:MDW,departure:21/10/2025TANYT&leg2=from:MDW,to:YOW,departure:03/01/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) MDW Midway Intl. CheapestClosest 16 min [Flights from CA $648](https://www.expedia.ca/Flights-Search?leg1=from:YOW,to:MDW,departure:21/10/2025TANYT&leg2=from:MDW,to:YOW,departure:03/01/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) Flight from Ottawa to Chicago (YOW - ORD) route information | Origin airport | Macdonald-Cartier Intl. | | --- | --- | | Destination airport | O'Hare Intl. | | Airlines serving | Air Canada, Porter Airlines, United, WestJet | | Roundtrip price | CA $454 | | Distance | 1045 km | | Average flight time | 1 hour 26 mins | ## Ottawa to Chicago Flights **The easy way to book your flights from Ottawa to Chicago**  With Expedia, it’s simple to find and book flights to Chicago from Ottawa whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to O'Hare Intl., too.   Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Ottawa to Chicago today, tomorrow, or this week.   **Save dollars with cheap flights from Macdonald-Cartier Intl., YOW to O'Hare Intl., ORD**  Sort your search results by price to find great deals on your flight from Ottawa to Chicago—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Chicago from Ottawa currently is just CA $454 rising to CA $875.   Here are more money-saving tips:  - Fly in October when flight prices are normally at their lowest  - Book about a month to 6 weeks before you travel for the best prices to Chicago   - Avoid peak season and weekends when flights can cost more - Early morning and late-night flights are sometimes cheaper, so try varying your travel times  - One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free!  **Reasons to choose Expedia for your flight to Chicago from Ottawa**  Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Chicago with Expedia today. ## Frequently asked questions ### How much is a flight from YOW to O'Hare Airport? > Round-trip journeys between Macdonald-Cartier Intl. Airport (YOW) and ORD start from CA $454. This is based on fares listed within the last 7 days on Expedia for flights departing within the next year — book today so you don't miss out. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from YOW to O'Hare Airport? > Most flights can be cancelled online, but every airline has its own set of terms and conditions. If you do have to cancel your flight, visit our [Customer Service Portal](https://www.expedia.ca/helpcenter) and follow the instructions. ### How do I find cheap flights from Ottawa Intl. Airport to O'Hare Intl. Airport (ORD) that have flexible change policies? > Flights from Ottawa Intl. Airport to O'Hare Intl. Airport (ORD) offering flexible change policies are available with many airlines. Simply use our "No change fees" filter when searching. You'll only need to cover the fare difference, without any added fees to worry about. ### How many hours is the flight from Ottawa International Airport to O'Hare Intl. Airport (ORD)? > The flight time from Ottawa International Airport to O'Hare Airport is just 6 hours and 51 minutes. If you're lucky, you might just get through a whole movie before landing! ### How far is the flight from Macdonald-Cartier Intl. Airport (YOW) to O'Hare Intl. Airport (ORD)? > With a flight distance of 1,050 kilometres, it's only a hop from Ottawa Intl. Airport to O'Hare Airport. It might be a quick journey, but it's still worth bringing along something to keep you entertained on board. ### Which airlines fly direct from Ottawa International Airport to O'Hare Intl. Airport (ORD)? > If you're looking to fly straight from Ottawa Intl. Airport to O'Hare Airport, United Airlines (UA) is a top option. It operates 60 flights each month between Ottawa and Chicago. ### Are Ottawa Intl. Airport to O'Hare Intl. Airport (ORD) flight tickets cheaper when they're purchased at the last minute? > Airline tickets from YOW to ORD are available up to 12 months prior to departure on Expedia. And although you may occasionally score great last-minute deal, it's not something you should bank on. Also, booking your flights ahead of time means you'll have more choices — and you can avoid ending up with the dreaded middle seat! We frequently update our fares to bring you the best bargains, so keep checking in for all the latest specials. ## Explore a world of travel with Expedia - Flights ### Flights - [Flights from Calgary to Rosemont](https://www.expedia.ca/lp/flights/178245/7581/calgary-to-rosemont) - [Flights from Denver to Northwest Chicago](https://www.expedia.ca/lp/flights/178254/6350697/denver-to-northwest-chicago) - [Flights from Los Angeles to Evanston](https://www.expedia.ca/lp/flights/178280/8049/los-angeles-to-evanston) - [Flights from Mexico City to Northwest Chicago](https://www.expedia.ca/lp/flights/178285/6350697/mexico-city-to-northwest-chicago) - [Flights from New York to Evanston](https://www.expedia.ca/lp/flights/178293/8049/new-york-to-evanston) - [Flights from Ottawa to Evanston](https://www.expedia.ca/lp/flights/178296/8049/ottawa-to-evanston) - [Flights from Philadelphia to Rosemont](https://www.expedia.ca/lp/flights/178297/7581/philadelphia-to-rosemont) - [Flights from Portland to Rosemont](https://www.expedia.ca/lp/flights/178299/7581/portland-to-rosemont) - 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