$666 Economy Roundtrip to Sofia (ORD-SOF) in Dec from Chicago

Cheap economy Flights: ORD to SOF in December - Route 3

Starting from $801

Flight Options & Prices:

One-Stop Flights: From $898 - Good value with one connection
Multi-Stop Flights: From $801 - Cheapest option with multiple connections

Book your economy class flight from Chicago (ORD) to Sofia (SOF)and save money on your travel. Compare all flight options to find the best deal for your december trip.

Cheap economy Flights: ORD to SOF in December - Route 4

Starting from $831

Flight Options & Prices:

One-Stop Flights: From $831 - Good value with one connection
Multi-Stop Flights: From $831 - Cheapest option with multiple connections

Book your economy class flight from Chicago (ORD) to Sofia (SOF)and save money on your travel. Compare all flight options to find the best deal for your december trip.

Cheap economy Flights: ORD to SOF in December - Route 5

Starting from $948

Flight Options & Prices:

One-Stop Flights: From $948 - Good value with one connection
Multi-Stop Flights: From $948 - Cheapest option with multiple connections

Book your economy class flight from Chicago (ORD) to Sofia (SOF)and save money on your travel. Compare all flight options to find the best deal for your december trip.

Cheap economy Flights: ORD to SOF in December - Route 6

Starting from $979

Flight Options & Prices:

One-Stop Flights: From $1058 - Good value with one connection
Multi-Stop Flights: From $979 - Cheapest option with multiple connections

Book your economy class flight from Chicago (ORD) to Sofia (SOF)and save money on your travel. Compare all flight options to find the best deal for your december trip.

Cheap economy Flights: ORD to SOF in December - Route 7

Starting from $994

Flight Options & Prices:

One-Stop Flights: From $994 - Good value with one connection
Multi-Stop Flights: From $994 - Cheapest option with multiple connections

Book your economy class flight from Chicago (ORD) to Sofia (SOF)and save money on your travel. Compare all flight options to find the best deal for your december trip.

Cheap economy Flights: ORD to SOF in December - Route 8

Starting from $998

Flight Options & Prices:

One-Stop Flights: From $998 - Good value with one connection
Multi-Stop Flights: From $998 - Cheapest option with multiple connections

Book your economy class flight from Chicago (ORD) to Sofia (SOF)and save money on your travel. Compare all flight options to find the best deal for your december trip.

Cheap economy Flights: ORD to SOF in December - Route 9

Starting from $1005

Flight Options & Prices:

One-Stop Flights: From $1005 - Good value with one connection
Multi-Stop Flights: From $1005 - Cheapest option with multiple connections

Book your economy class flight from Chicago (ORD) to Sofia (SOF)and save money on your travel. Compare all flight options to find the best deal for your december trip.

Cheap economy Flights: ORD to SOF in December - Route 10

Starting from $1050

Flight Options & Prices:

One-Stop Flights: From $1050 - Good value with one connection
Multi-Stop Flights: From $1050 - Cheapest option with multiple connections

Book your economy class flight from Chicago (ORD) to Sofia (SOF)and save money on your travel. Compare all flight options to find the best deal for your december trip.

Cheap economy Flights: ORD to SOF in December - Route 11

Starting from $1060

Flight Options & Prices:

One-Stop Flights: From $1060 - Good value with one connection
Multi-Stop Flights: From $1060 - Cheapest option with multiple connections

Book your economy class flight from Chicago (ORD) to Sofia (SOF)and save money on your travel. Compare all flight options to find the best deal for your december trip.

Cheap economy Flights: ORD to SOF in December - Route 12

Starting from $1061

Flight Options & Prices:

One-Stop Flights: From $1140 - Good value with one connection
Multi-Stop Flights: From $1061 - Cheapest option with multiple connections

Book your economy class flight from Chicago (ORD) to Sofia (SOF)and save money on your travel. Compare all flight options to find the best deal for your december trip.

Cheap economy Flights: ORD to SOF in December - Route 13

Starting from $1065

Flight Options & Prices:

One-Stop Flights: From $1147 - Good value with one connection
Multi-Stop Flights: From $1065 - Cheapest option with multiple connections

Book your economy class flight from Chicago (ORD) to Sofia (SOF)and save money on your travel. Compare all flight options to find the best deal for your december trip.

Cheap economy Flights: ORD to SOF in December - Route 14

Starting from $1084

Flight Options & Prices:

One-Stop Flights: From $1084 - Good value with one connection
Multi-Stop Flights: From $1084 - Cheapest option with multiple connections

Book your economy class flight from Chicago (ORD) to Sofia (SOF)and save money on your travel. Compare all flight options to find the best deal for your december trip.

Cheap economy Flights: ORD to SOF in December - Route 15

Starting from $1119

Flight Options & Prices:

One-Stop Flights: From $1119 - Good value with one connection
Multi-Stop Flights: From $1119 - Cheapest option with multiple connections

Book your economy class flight from Chicago (ORD) to Sofia (SOF)and save money on your travel. Compare all flight options to find the best deal for your december trip.

Cheap economy Flights: ORD to SOF in December - Route 16

Starting from $1146

Flight Options & Prices:

One-Stop Flights: From $1146 - Good value with one connection
Multi-Stop Flights: From $1146 - Cheapest option with multiple connections

Book your economy class flight from Chicago (ORD) to Sofia (SOF)and save money on your travel. Compare all flight options to find the best deal for your december trip.

Cheap economy Flights: ORD to SOF in December - Route 17

Starting from $1149

Flight Options & Prices:

One-Stop Flights: From $1149 - Good value with one connection
Multi-Stop Flights: From $1149 - Cheapest option with multiple connections

Book your economy class flight from Chicago (ORD) to Sofia (SOF)and save money on your travel. Compare all flight options to find the best deal for your december trip.

Cheap economy Flights: ORD to SOF in December - Route 18

Starting from $1185

Flight Options & Prices:

One-Stop Flights: From $1249 - Good value with one connection
Multi-Stop Flights: From $1185 - Cheapest option with multiple connections

Book your economy class flight from Chicago (ORD) to Sofia (SOF)and save money on your travel. Compare all flight options to find the best deal for your december trip.

Cheap economy Flights: ORD to SOF in December - Route 19

Starting from $1221

Flight Options & Prices:

One-Stop Flights: From $1221 - Good value with one connection
Multi-Stop Flights: From $1221 - Cheapest option with multiple connections

Book your economy class flight from Chicago (ORD) to Sofia (SOF)and save money on your travel. Compare all flight options to find the best deal for your december trip.

Cheap economy Flights: ORD to SOF in December - Route 20

Starting from $1225

Flight Options & Prices:

One-Stop Flights: From $1319 - Good value with one connection
Multi-Stop Flights: From $1225 - Cheapest option with multiple connections

Book your economy class flight from Chicago (ORD) to Sofia (SOF)and save money on your travel. Compare all flight options to find the best deal for your december trip.

Cheap economy Flights: ORD to SOF in December - Route 21

Starting from $1236

Flight Options & Prices:

One-Stop Flights: From $1236 - Good value with one connection
Multi-Stop Flights: From $1236 - Cheapest option with multiple connections

Book your economy class flight from Chicago (ORD) to Sofia (SOF)and save money on your travel. Compare all flight options to find the best deal for your december trip.

Cheap economy Flights: ORD to SOF in December - Route 22

Starting from $1255

Flight Options & Prices:

One-Stop Flights: From $1333 - Good value with one connection
Multi-Stop Flights: From $1255 - Cheapest option with multiple connections

Book your economy class flight from Chicago (ORD) to Sofia (SOF)and save money on your travel. Compare all flight options to find the best deal for your december trip.

Cheap economy Flights: ORD to SOF in December - Route 23

Starting from $1255

Flight Options & Prices:

One-Stop Flights: From $1255 - Good value with one connection
Multi-Stop Flights: From $1255 - Cheapest option with multiple connections

Book your economy class flight from Chicago (ORD) to Sofia (SOF)and save money on your travel. Compare all flight options to find the best deal for your december trip.

Cheap economy Flights: ORD to SOF in December - Route 24

Starting from $1301

Flight Options & Prices:

One-Stop Flights: From $1689 - Good value with one connection
Multi-Stop Flights: From $1301 - Cheapest option with multiple connections

Book your economy class flight from Chicago (ORD) to Sofia (SOF)and save money on your travel. Compare all flight options to find the best deal for your december trip.

Cheap economy Flights: ORD to SOF in December - Route 25

Starting from $1538

Flight Options & Prices:

One-Stop Flights: From $1741 - Good value with one connection
Multi-Stop Flights: From $1538 - Cheapest option with multiple connections

Book your economy class flight from Chicago (ORD) to Sofia (SOF)and save money on your travel. Compare all flight options to find the best deal for your december trip.

Cheap economy Flights: ORD to SOF in December - Route 26

Starting from $1539

Flight Options & Prices:

One-Stop Flights: From $1539 - Good value with one connection
Multi-Stop Flights: From $1539 - Cheapest option with multiple connections

Book your economy class flight from Chicago (ORD) to Sofia (SOF)and save money on your travel. Compare all flight options to find the best deal for your december trip.

Cheap economy Flights: ORD to SOF in December - Route 27

Starting from $1645

Flight Options & Prices:

One-Stop Flights: From $1671 - Good value with one connection
Multi-Stop Flights: From $1645 - Cheapest option with multiple connections

Book your economy class flight from Chicago (ORD) to Sofia (SOF)and save money on your travel. Compare all flight options to find the best deal for your december trip.

Best Flights starting from $666

Sat, Dec 12

Roundtrip

Sun, Dec 20

Sun, Dec 13

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Wed, Dec 30

Fri, Dec 11

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Sat, Dec 19

Mon, Dec 14

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Thu, Dec 31

Wed, Dec 23

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Sat, Jan 9

Tue, Dec 15

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Fri, Jan 1

Sat, Dec 19

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Tue, Jan 5

Sat, Dec 19

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Thu, Jan 7

Sat, Dec 19

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Wed, Jan 6

Mon, Dec 21

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Sat, Jan 9

Wed, Dec 16

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Sat, Jan 2

Tue, Dec 15

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Sun, Jan 3

Wed, Dec 16

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Mon, Jan 4

Mon, Dec 21

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Fri, Jan 8

Mon, Dec 21

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Thu, Jan 7

Tue, Dec 22

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Fri, Jan 8

Tue, Dec 22

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Sat, Jan 9

Sun, Dec 20

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Thu, Jan 7

Sun, Dec 20

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Fri, Jan 8

Wed, Dec 16

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Sun, Jan 3

Fri, Dec 18

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Wed, Jan 6

Thu, Dec 17

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Tue, Jan 5

Fri, Dec 18

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Tue, Jan 5

Sun, Dec 20

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Wed, Jan 6

Thu, Dec 17

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Sun, Jan 3

Fri, Dec 18

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Mon, Jan 4

Thu, Dec 17