Cheap flights from Sofia to Upper Middle Rhine Valley from CA $120

View CA $120 flight on Mon, Mar. 9, 2026Opens in a new window

Popular airlines from Sofia to Upper Middle Rhine Valley

  • Air Canada

    Air Canada

  • WestJet

    WestJet

  • Flair Airlines

    Flair Airlines

  • American Airlines

    American Airlines

  • United

    United

  • Delta

    Delta

  • Porter Airlines

    Porter Airlines

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap flights from Sofia (SOF) to Upper Middle Rhine Valley (FRA)

Prices were available within the past 7 days and start at CA $120 for one-way flights and CA $254 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Fri, Aug. 8 - Mon, Aug. 11
SOF
Sofia
FRA
Frankfurt
CA $254 Roundtrip, found 16 hours ago
CA $254
Roundtrip
found 16 hours ago
Select Lufthansa flight, departing Fri, Aug. 8 from Sofia to Frankfurt, returning Mon, Aug. 11, priced at CA $254 found 16 hours ago
Lufthansa
Fri, Nov. 21 - Thu, Nov. 27
SOF
Sofia
CGN
Cologne
CA $326 Roundtrip, found 6 days ago
CA $326
Roundtrip
found 6 days ago
Select Lufthansa flight, departing Fri, Nov. 21 from Sofia to Cologne, returning Thu, Nov. 27, priced at CA $326 found 6 days ago
LOT-Polish Airlines
Sat, Sep. 13 - Wed, Sep. 17
SOF
Sofia
FRA
Frankfurt
CA $334 Roundtrip, found 16 hours ago
CA $334
Roundtrip
found 16 hours ago
Select LOT-Polish Airlines flight, departing Sat, Sep. 13 from Sofia to Frankfurt, returning Wed, Sep. 17, priced at CA $334 found 16 hours ago
Austrian Airlines
Fri, Nov. 21 - Thu, Nov. 27
SOF
Sofia
CGN
Cologne
CA $355 Roundtrip, found 6 days ago
CA $355
Roundtrip
found 6 days ago
Select Austrian Airlines flight, departing Fri, Nov. 21 from Sofia to Cologne, returning Thu, Nov. 27, priced at CA $355 found 6 days ago
Air Serbia
Tue, Sep. 9 - Thu, Sep. 11
SOF
Sofia
FRA
Frankfurt
CA $376 Roundtrip, found 20 hours ago
CA $376
Roundtrip
found 20 hours ago
Select Air Serbia flight, departing Tue, Sep. 9 from Sofia to Frankfurt, returning Thu, Sep. 11, priced at CA $376 found 20 hours ago
Bulgaria Air
Wed, Sep. 10 - Sun, Sep. 14
SOF
Sofia
FRA
Frankfurt
CA $382 Roundtrip, found 14 hours ago
CA $382
Roundtrip
found 14 hours ago
Select Bulgaria Air flight, departing Wed, Sep. 10 from Sofia to Frankfurt, returning Sun, Sep. 14, priced at CA $382 found 14 hours ago
*Available to Expedia members.