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    Economy Class, 1 traveller
        Economy Class, 1 traveller

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        Flight from Chicago (ORD) to Sofia (SOF) from $724

        Book return flight from Sofia to Chicago

        Flight Information

        Cheapest flight Cheapest flight from $724
        Departure and arrival airport Departure and arrival airport   ORD-SOF
        Distance Distance approx. 8365​km

        Lowest available fares

        from Chicago to Sofia, 1 traveller, Economy Class, 14 days

        2026
        from 1.307 $ Jul. 22 Jul.
        from 778 $ Aug. 12 Aug.
        from 846 $ Sep. 1 Sep.
        from 724 $ Best price Oct. 20 Oct.
        from 724 $ Best price Nov. 3 Nov.
        from 724 $ Best price Dec. 1 Dec.
        2027
        from 724 $ Jan. 5 Jan.
        from 724 $ Feb. 2 Feb.
        from 724 $ Mar. 2 Mar.
        from 724 $ Apr. 6 Apr.
        from 778 $ May 4 May
        from 935 $ Jun. 3 Jun.

        Book your flights from Chicago to Sofia right away!

        Looking for affordable round-trip flights from Chicago to Sofia? Then check out our offers to find the best option for your journey. For example, you can fly from Chicago to Sofia and back in December 2026 for $724.

        Whether you’re planning to spend your vacation in Bulgaria or traveling to Sofia for a business meeting, a Lufthansa flight makes your journey from USA to your destination both comfortable and convenient.

        Culinary highlights are, of course, part of the experience. Take a look at the digital menu for your outbound or return flight in advance to see what awaits you. For entertainment on board, enjoy our selection of newspapers and magazines from around the world. Simply download our Lufthansa eJournals to your mobile device before your Lufthansa flight and enjoy your reading. Prefer to watch the latest movies or series? Then look forward to hours of entertainment with our inflight entertainment program. After landing in Bulgaria, you’ll be ready to begin your activities.

        Discover the Lufthansa App, which offers a variety of practical services. Get your mobile boarding pass, reserve your preferred seat, or book additional flights – all conveniently from your smartphone. Do you travel often? With our Miles & More program, you’ll earn rewards and privileges that make your future travel planning even more attractive.

        This way, you can fully enjoy your flight without stress. Just choose the month you’d like to travel. The lowest-cost round-trip flight from Chicago to Sofia is available for $724 for travelling in December 2026.

        Please note: To provide you with the widest possible selection of flight destinations, some of the direct flights or connecting flights on lufthansa.com are operated by our partner airlines, which may result in a different flight experience than with Lufthansa.

        Flying from Chicago to Sofia: tips and information for your trip

        Enjoy our special fares on Chicago Sofia flights and enjoy Bulgaria's beautiful capital. Sofia is famous for its rich cultural heritage and offers many fascinating sights as well as beautiful surroundings. It is one of the oldest cities in Europe with many interesting ruins spread across the city center. Don't miss the Alexander Nevsky Cathedral, one of the largest orthodox churches worldwide or go and visit the National Palace of Culture. There are lots of things to do and see. Let this city enchant you. Don't forget to try the typical Bulgarian dish Kebaptscheta in one of the many trendy cafes or great restaurants this city has to offer. Benefit from our amazing fares on flights from Chicago to Sofia (CHI - SOF) and book your flight with us today. Besides Sofia, you can discover places all over the world with us. Why not relax on an intercontinental flight to an exotic destination or benefit from our low fares and spend a weekend in an exciting city.

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        FAQ

        Here’s how to book your flight from Chicago to Sofia at the best price with peace of mind:

        • Best Price Search: Simply search for your destination, choose the best offer in the monthly overview, and book at the lowest price.
        • Best Price Alert: Get notified about the best offers — simply sign in with your Travel ID or email address.
        • Price Guarantee: Until all travel details have been finalized, you can secure the best price for your reservation with the Price Guarantee — for up to 48 hours.
        • Student fares: With verified student status, you may be able to book your flight from Chicago to Sofia at a discounted fare.

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