Itineraries stitched across multiple airlines cost roughly half again as much as single-airline ones, a premium that has persisted across the recorded window.
What this shows: The chart covers 2020 Q1 to 2025 Q2. It plots Single-airline itineraries and Multi-airline itineraries on a vertical axis of Average itinerary fare ($). Latest values: Single-airline itineraries 357.8; Multi-airline itineraries 528. Data run through 2025 Q2.