Airlines that fly from Ottawa to Karlsruhe
- IndiGoIndiGo
- Air IndiaAir India
- VistaraVistara
- DeltaDelta
- UnitedUnited
- American AirlinesAmerican Airlines
- EmiratesEmirates
- Qatar AirwaysQatar Airways
- LufthansaLufthansa
- Etihad AirwaysEtihad Airways
- British AirwaysBritish Airways
- Air CanadaAir Canada
- SpiceJetSpiceJet
- Virgin AtlanticVirgin Atlantic
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