Title: £363 Cheap Flights from Sofia to Chicago (SOF to ORD) - Expedia.co.uk ![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://images.trvl-media.com/place/178248/e6aa83ce-7ad8-43a5-9d1d-b055eefa7e78.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # £363 Cheap Flights from Sofia (SOF) to Chicago (ORD) [View £363 flight on Tue, 21 Oct 2025](https://expedia.co.uk/Flights-Search?trip=oneway&leg1=from:SOF,to:ORD,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:362.80&airProductToken=AQpSCicIyqoBEgMxMTMY0isggTEo8fj6AjC8-foCOFVAAFgBcgZVTE9XQkcKJwjKqgESAzUwNhiBMSCuHCiNgvsCMI2H-wI4VUABWAFyBlVMT1dCRxIKCAEQARgBKgJKVRgBIgQIARABKAIoAygEMAE) - [Return](?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 Sofia Airport (SOF) to Chicago O'Hare International Airport (ORD) - ![LOT-Polish Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_LO.svg) LOT-Polish Airlines [](https://www.expedia.co.uk/Flights-Search?leg1=from:sof,to:ord,departure:18/10/2025TANYT&leg2=from:ord,to:sof,departure:25/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"LO"}}]) - ![Air Canada](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AC.svg) Air Canada [](https://www.expedia.co.uk/Flights-Search?leg1=from:sof,to:ord,departure:18/10/2025TANYT&leg2=from:ord,to:sof,departure:25/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AC"}}]) - ![Lufthansa](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_LH.svg) Lufthansa [](https://www.expedia.co.uk/Flights-Search?leg1=from:sof,to:ord,departure:18/10/2025TANYT&leg2=from:ord,to:sof,departure:25/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"LH"}}]) - ![Turkish Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_TK.svg) Turkish Airlines [](https://www.expedia.co.uk/Flights-Search?leg1=from:sof,to:ord,departure:18/10/2025TANYT&leg2=from:ord,to:sof,departure:25/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"TK"}}]) - ![Austrian Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_OS.svg) Austrian Airlines [](https://www.expedia.co.uk/Flights-Search?leg1=from:sof,to:ord,departure:18/10/2025TANYT&leg2=from:ord,to:sof,departure:25/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"OS"}}]) - ![Swiss International Air Lines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_LX.svg) Swiss International Air Lines [](https://www.expedia.co.uk/Flights-Search?leg1=from:sof,to:ord,departure:18/10/2025TANYT&leg2=from:ord,to:sof,departure:25/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"LX"}}]) - ![United](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United [](https://www.expedia.co.uk/Flights-Search?leg1=from:sof,to:ord,departure:18/10/2025TANYT&leg2=from:ord,to:sof,departure:25/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) ![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 25% 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.co.uk/login) ## Cheap Flights from Sofia (SOF) to Chicago (ORD) Prices were available within the past 7 days and start at £363 for one-way flights and £503 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Return ![LOT-Polish Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/LO.gif) Wed, 15 Oct - Wed, 21 Jan SOF Sofia ORD Chicago £503 Return found 4 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:SOF,to:ORD,departure:15/10/2025TANYT&leg2=from:ORD,to:SOF,departure:21/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:502.50&airProductToken=AQpoCjMIzJ4BEgM2MzQY0isglrABKMy2-gIwv7f6AjhMQABYAWoIRUNPTk9CQUdyB0xBNjhFTkIKMQjMngESATEYlrABIK4cKKK_-gIw-sP6AjhMQAFYAWoIRUNPTk9CQUdyB0xBNjhFTkIKaAoxCMyeARIBNBiuHCCWsAEo64qDAzCCj4MDOExAAFgBaghFQ09OT0JBR3IHTEE2OEVOQgozCMyeARIDNjMzGJawASDSKyi-j4MDMLaQgwM4TEABWAFqCEVDT05PQkFHcgdMQTY4RU5CEgoIARABGAEqAkxPGAEiBAgBEAEoAigDKAQwAQ) ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Wed, 15 Oct - Wed, 21 Jan SOF Sofia ORD Chicago £526 Return found 4 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:SOF,to:ORD,departure:15/10/2025TANYT&leg2=from:ORD,to:SOF,departure:21/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:525.90&airProductToken=AQqaAQoxCMGGARIEOTA0MRjSKyClBCjjsPoCMPmx-gI4S0AAWAFqBUJBU0lDcghLTVE4RFhCUQoxCMGGARIDODM5GKUEILiNASiPs_oCMOy3-gI4S0ABWAFqBUJBU0lDcghLTVE4RFhCUQoyCMGGARIENDg3Nhi4jQEgrhwo_bj6AjCAu_oCOEtAAVgBagVCQVNJQ3IIS01ROERYQlEKmAEKMQjBhgESBDM0NTgYrhwgmF0ow4WDAzDUhoMDOEtAAFgBagVCQVNJQ3IIS01ROERYQlEKMAjBhgESAzg0NBiYXSClBCi_iIMDMIGMgwM4S0ABWAFqBUJBU0lDcghLTVE4RFhCUQoxCMGGARIEOTQ4NxilBCDSKyi_jYMDMMaOgwM4S0ABWAFqBUJBU0lDcghLTVE4RFhCURIKCAIQARgCKgJBQxgBIgQIARABKAIoAygEMAE) ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Wed, 15 Oct - Wed, 21 Jan SOF Sofia ORD Chicago £531 Return found 4 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:SOF,to:ORD,departure:15/10/2025TANYT&leg2=from:ORD,to:SOF,departure:21/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:530.80&airProductToken=AQqaAQoxCMGGARIEOTA0MRjSKyClBCjjsPoCMPmx-gI4S0AAWAFqBUJBU0lDcghLTVE4RFhCUQoxCMGGARIDODM5GKUEILiNASiPs_oCMOy3-gI4S0ABWAFqBUJBU0lDcghLTVE4RFhCUQoyCMGGARIENDg3Nhi4jQEgrhwo_bj6AjCAu_oCOEtAAVgBagVCQVNJQ3IIS01ROERYQlEKmwEKMgjBhgESBDQ0MDcYrhwgmM4BKOuFgwMw1YaDAzhLQABYAWoFQkFTSUNyCEtNUThEWEJRCjIIwYYBEgQ5MTA0GJjOASClBCjTiIMDMJ-MgwM4S0ABWAFqBUJBU0lDcghLTVE4RFhCUQoxCMGGARIEOTQ4NxilBCDSKyi_jYMDMMaOgwM4S0ABWAFqBUJBU0lDcghLTVE4RFhCURIKCAIQARgCKgJBQxgBIgQIARABKAIoAygEMAE) ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Wed, 15 Oct - Wed, 21 Jan SOF Sofia ORD Chicago £545 Return found 4 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:SOF,to:ORD,departure:15/10/2025TANYT&leg2=from:ORD,to:SOF,departure:21/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:544.10&airProductToken=AQqaAQoxCMGGARIEOTUyMBjSKyClBCi5tPoCMM-1-gI4S0AAWAFqBUJBU0lDcghLTVE4RFhCUQoxCMGGARIDODM5GKUEILiNASivvvoCMIzD-gI4S0ABWAFqBUJBU0lDcghLTVE4RFhCUQoyCMGGARIENDg3Nhi4jQEgrhwoncT6AjCgxvoCOEtAAVgBagVCQVNJQ3IIS01ROERYQlEKmQEKMQjBhgESAzUwNhiuHCCYzgEokIeDAzDzh4MDOEtAAFgBagVCQVNJQ3IIS01ROERYQlEKMQjBhgESAzgzNhiYzgEgjBUorYmDAzCSjYMDOEtAAVgBagVCQVNJQ3IIS01ROERYQlEKMQjBhgESBDkzNzUYjBUg0iso5o-DAzDUkIMDOEtAAVgBagVCQVNJQ3IIS01ROERYQlESCggCEAEYAioCQUMYASIECAEQASgCKAMoBDAB) ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Wed, 15 Oct - Wed, 21 Jan SOF Sofia ORD Chicago £546 Return found 4 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:SOF,to:ORD,departure:15/10/2025TANYT&leg2=from:ORD,to:SOF,departure:21/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:545.30&airProductToken=AQqaAQoxCMGGARIEOTUyMBjSKyClBCi5tPoCMM-1-gI4S0AAWAFqBUJBU0lDcghLTVE4RFhCUQoxCMGGARIDODM5GKUEILiNASivvvoCMIzD-gI4S0ABWAFqBUJBU0lDcghLTVE4RFhCUQoyCMGGARIENDg3Nhi4jQEgrhwoncT6AjCgxvoCOEtAAVgBagVCQVNJQ3IIS01ROERYQlEKmwEKMgjBhgESBDQ4OTkYrhwgmM4BKOGGgwMwzoeDAzhLQABYAWoFQkFTSUNyCEtNUThEWEJRCjIIwYYBEgQ5MTA0GJjOASClBCjTiIMDMJ-MgwM4S0ABWAFqBUJBU0lDcghLTVE4RFhCUQoxCMGGARIEOTQ4NxilBCDSKyi_jYMDMMaOgwM4S0ABWAFqBUJBU0lDcghLTVE4RFhCURIKCAIQARgCKgJBQxgBIgQIARABKAIoAygEMAE) ![LOT-Polish Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/LO.gif) Sat, 11 Oct - Wed, 22 Oct SOF Sofia ORD Chicago £603 Return found 2 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:SOF,to:ORD,departure:11/10/2025TANYT&leg2=from:ORD,to:SOF,departure:22/10/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:602.30&airProductToken=AQpoCjMIzJ4BEgM2MzQY0isglrABKMyJ-gIwv4r6AjhTQABYAWoIRUNPTk9CQUdyB1NBNjBFTkIKMQjMngESATEYlrABIK4cKKKS-gIw-pb6AjhTQAFYAWoIRUNPTk9CQUdyB1NBNjBFTkIKaAoxCMyeARIBNBiuHCCWsAEowIr7AjDmjvsCOFdAAFgBaghFQ09OT0JBR3IHV0E2NkVOQgozCMyeARIDNjMzGJawASDSKyiij_sCMJ-Q-wI4V0ABWAFqCEVDT05PQkFHcgdXQTY2RU5CEgoIARABGAEqAkxPGAEiBAgBEAEoAigDKAQwAQ) ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Wed, 15 Oct - Wed, 21 Jan SOF Sofia ORD Chicago £604 Return found 4 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:SOF,to:ORD,departure:15/10/2025TANYT&leg2=from:ORD,to:SOF,departure:21/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:603.70&airProductToken=AQqaAQoxCMGGARIEOTA0MRjSKyClBCjjsPoCMPmx-gI4S0AAWAFqBUJBU0lDcghLTVE4RFhCUQoxCMGGARIDODM5GKUEILiNASiPs_oCMOy3-gI4S0ABWAFqBUJBU0lDcghLTVE4RFhCUQoyCMGGARIENDg3Nhi4jQEgrhwo_bj6AjCAu_oCOEtAAVgBagVCQVNJQ3IIS01ROERYQlEKmQEKMQjBhgESBDg5NjIYrhwgmF0o74eDAzDsiIMDOFNAAFgBagVCQVNJQ3IIU01KOERYQlEKMQjBhgESBDkwOTgYmF0gjBUoxomDAzD-jIMDOFNAAVgBagVCQVNJQ3IIU01KOERYQlEKMQjBhgESBDkzNzUYjBUg0iso5o-DAzDUkIMDOFNAAVgBagVCQVNJQ3IIU01KOERYQlESCggCEAEYAioCQUMYASIECAEQASgCKAMoBDAB) ![Austrian Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/OS.gif) Sat, 11 Oct - Wed, 22 Oct SOF Sofia ORD Chicago £606 Return found 2 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:SOF,to:ORD,departure:11/10/2025TANYT&leg2=from:ORD,to:SOF,departure:22/10/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:605.90&airProductToken=AQqgAQozCM-mARIDNzk4GNIrIJUiKNuJ-gIwuor6AjhMQABYAWoIRUNPTElHSFRyCExNSjhEWEJRCjMIz6YBEgM0MTkYlSIg4jAo8Yr6AjDpi_oCOExAAVgBaghFQ09MSUdIVHIITE1KOERYQlEKNAjPpgESBDc3NTkY4jAgrhwo65H6AjCHlvoCOExAAVgBaghFQ09MSUdIVHIITE1KOERYQlEKnwEKMwjBhgESAzUyMhiuHCCYXSishfsCMLKG-wI4S0AAWAFqCEVDT0xJR0hUcghLTVE4RFhCUQoyCMywARICODcYmF0guTwo2If7AjCai_sCOEtAAVgBaghFQ09MSUdIVHIIS01ROERYQlEKNAjMsAESBDEzOTAYuTwg0isowov7AjDJjPsCOEtAAVgBaghFQ09MSUdIVHIIS01ROERYQlESCggCEAEYAioCT1MYASIECAEQASgCKAMoBDAL) ![Air France](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AF.gif) Sat, 11 Oct - Wed, 22 Oct SOF Sofia ORD Chicago £618 Return found 2 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:SOF,to:ORD,departure:11/10/2025TANYT&leg2=from:ORD,to:SOF,departure:22/10/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:617.20&airProductToken=AQqXAQoxCMGMARIENTQ2ORjSKyDiMCiQhPoCMM6F-gI4TEAAWAFqBUxJR0hUcghSWUw2VEJMQQovCMGMARICMzQY4jAg4FwopIn6AjDZjfoCOFJAAVgBagVMSUdIVHIIUllMNlRCTEEKMQjBjAESBDIxMzYY4Fwgrhwo9I76AjDqj_oCOFJAAVgBagVMSUdIVHIIUllMNlRCTEEKZQowCMGMARIDMTM3GK4cIOIwKLKI-wIwkoz7AjhSQABYAWoFTElHSFRyCFJZTDZUQkxBCjEIwYwBEgQ1NDcwGOIwINIrKI-N-wIwtI77AjhMQAFYAWoFTElHSFRyCFJZTDZUQkxBEgoIARABGAEqAkFGGAEiBAgBEAEoAigDKAQwAQ) ![British Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/BA.gif) Sun, 16 Nov - Wed, 19 Nov SOF Sofia ORD Chicago £738 Return found 3 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:SOF,to:ORD,departure:16/11/2025TANYT&leg2=from:ORD,to:SOF,departure:19/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:737.54&airProductToken=AQpnCjEIwoIBEgM4OTEY0isg64kBKI6d_QIw4J79AjhTQABYAWoFTk9CQUdyCFNMTjBDMkJXCjIIwoIBEgQxNTQyGOuJASCuHCizqP0CMMWs_QI4U0ABWAFqBU5PQkFHcghTTE4wQzJCVwqYAQoxCMKCARIENTI4NRiuHCDvWSjFxf0CML_G_QI4U0AAWAFqBU5PQkFHcghTTE4wQzJCVwowCMKCARICNjYY71kg64kBKKfP_QIwy9L9AjhTQAFYAWoFTk9CQUdyCFNMTjBDMkJXCjEIwoIBEgM4OTAY64kBINIrKM3d_QIwi9_9AjhTQAFYAWoFTk9CQUdyCFNMTjBDMkJXEgoIARABGAEqAkJBGAEiBAgBEAEoAigDKAQwAQ) ## Find the cheapest month to fly from Sofia (SOF) to Chicago (ORD) ### March is typically the cheapest month to fly From £408 - £855 per traveller. ## Frequently asked questions ### How much is a flight from SOF to O'Hare Airport? > Based on airfares available within the last 7 days on Expedia for flights departing within the next year, round-trip flights from SOF to O'Hare Intl. Airport (ORD) start from £503. Book today to secure the best price for your adventure. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from Sofia Intl. Airport to O'Hare Intl. Airport (ORD)? > This varies between airlines, as each one has its own set of terms and conditions. Visit the [Customer Service Portal](https://www.expedia.co.uk/service/?langid=1033), where you'll find easy-to-follow instructions on how to cancel your flight online. ### How do I find cheap flights from SOF to O'Hare Airport that have flexible change policies? > Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Sofia Airport (SOF) to O'Hare Airport flights, you'll see a "no change fees" filter for you to select. ### How far is the flight from Sofia Airport (SOF) to O'Hare Airport? > The distance is around 8,400 kilometres. Neck pillow? Check. Toothbrush? Double check. We recommend you pack all the essentials for this long-haul Sofia to Chicago flight. ### Which airlines fly direct from Sofia Airport (SOF) to ORD? > You won't find any airlines operating directly between Sofia Airport (SOF) and ORD, so be prepared to make at least one stop on your journey. A layover, whether short or long, can be a nice way to break up a trip! ### Are Sofia Airport (SOF) to O'Hare Airport flight tickets cheaper when they're purchased at the last minute? > Booking last minute from Sofia Intl. Airport to O'Hare Airport can be hit-or-miss. It is possible to score a bargain, but then again, you could miss out altogether! If you'd rather play it safe and start your trip planning early on, Expedia compares flight deals up to a year in advance. Just bear in mind that not all airlines list their prices that far in advance. Our suggestion? Check back often as prices are updated regularly. ## Travel information | Origin airport | Sofia | | --- | --- | | Destination airport | O'Hare Intl. | | Return price | £502 | | Distance | 8316 km | ## Book with confidence ### Compare flights from Sofia to Chicago easily and book with confidence For travelling on business or for pleasure, Expedia makes it easy to book your flights from Sofia to Chicago. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to O'Hare Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Sofia to O'Hare Intl..   To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights.  Grab a great deal on your flight from Sofia (SOF) to O'Hare Intl. (ORD) The easiest way to view the best deals on flights from Sofia to Chicago today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Sofia to O'Hare Intl. start at just £503 and range up to £738.   To find an even better deal, try   - being flexible on your dates – midweek flights can be cheaper - looking for other airports near Sofia and Chicago - booking your flight during October, the cheapest month on this route - varying your flight times – early morning and late at night are sometimes cheaper  Why you should book your Sofia to Chicago flight with Expedia! We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Sofia to O'Hare Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.   Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.   ## Explore a world of travel with Expedia - Flights - [Flights from Lake Of The Ozarks (AIZ) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/aiz/chi/lake-of-the-ozarks-to-chicago) - [Flights from Amsterdam (AMS) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/ams/chi/amsterdam-to-chicago) - [Flights from Atlanta (ATL) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/atl/chi/atlanta-to-chicago) - [Flights from Wilkes-Barre (AVP) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/avp/chi/wilkes-barre-to-chicago) - [Flights from Beirut (BEY) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/bey/chi/beirut-to-chicago) - [Flights from Birmingham (BHX) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/bhx/chi/birmingham-to-chicago) - [Flights from Bitam (BMM) to Chicago (CHI)](https://www.expedia.co.uk/lp/flights/bmm/chi/bitam-to-chicago) - 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