Eight questions buyers ask about the Airstream Interstate 24GT, answered from the RVs listed on US RV Connection right now.
How much does a used Airstream Interstate 24GT cost?
Right now US RV Connection shows 4 priced Interstate 24GT listings, all asking between $219,995 and $262,040, with a median asking price of $257,220. Worth noting: every one of those four is a new 2026 unit, so there is no used asking data on the site at the moment. All four have photos. These are asking prices set by sellers, not recorded sale prices, so treat them as starting points for your own research.
What years of the Interstate 24GT are for sale?
Every Interstate 24GT currently listed is a 2026 model, so all four units come from the same model year. That means no older or used examples are showing on US RV Connection at this time, and you cannot compare year-over-year changes from these listings. All four are Class B diesel motorhomes on the Mercedes-Benz Sprinter 3500 chassis, and all four include photos with their listings.
What layouts or floorplans of the Interstate 24GT are listed?
The 24GT is a single floorplan, and all four listings describe the same basic layout: a large rear lounge with flexible seating and dining configurations, a power rear sofa that converts into a 70-by-82-inch bed, a wet bath, and a built-in workstation. Several listings are labeled as the standard model. The descriptions do not break out separate floorplan options, so expect the same arrangement across all four.
What should I check before buying a used Interstate 24GT?
Since all four listed units are new 2026 models, used-market checks do not apply here yet. If you do find a used one, focus on what these descriptions highlight: the Mercedes-Benz Sprinter 3500 AWD diesel drivetrain and its service history, the 10.3 kWh lithium battery system and its heater, the 400W solar, the power rear sofa mechanism, the power awning's auto-retract, the wet bath for leaks, and the air ride suspension.
What features come on the Interstate 24GT?
The listings describe a built-in workstation, a power rear sofa that converts to a 70-by-82-inch bed, a wet bath, two LED HDTVs, and air ride suspension. Mechanically, they cite the Mercedes-Benz Sprinter 3500 Extended AWD chassis with a 2.0L high-output turbo diesel. Power comes from a 10.3 kWh lithium battery system with a built-in heater plus a 400W solar system. Outside there is a 14-foot-6 power armless awning with auto-retract and LED lighting.
Is the Interstate 24GT a good fit for couples?
The listings point that way. The rear lounge is described as flexible for seating and dining, with a single power rear sofa converting into one 70-by-82-inch bed, which suits two people rather than a family. A built-in workstation, wet bath, two LED HDTVs, and the lithium-plus-solar setup fit touring and remote work. The descriptions do not give sleeping capacity beyond that bed, so confirm berths with the seller.
Where can I find an Interstate 24GT for sale near me?
The four Interstate 24GT listings on US RV Connection are spread across three cities: two in Ramsey, Minnesota, one in Knoxville, Tennessee, and one in Tucson, Arizona. All four are 2026 Class B diesel motorhomes with photos, asking $219,995 to $262,040. Because the inventory is small and regional, you may need to look beyond your immediate area or check back as listings change.
How does the Interstate 24GT compare to the Rangeline RGT or the Basecamp 20X?
The biggest difference on US RV Connection is price and type. The 24GT is a Class B diesel motorhome asking $219,995 to $262,040, median $257,220, all 2026. The Rangeline RGT shows 5 listings from $153,722 to $153,995, median $153,951, also all 2026. The Basecamp 20X is far cheaper at 8 listings, $39,900 to $74,450, median $67,835, spanning 2021 to 2026. Feature-level comparisons are not available from the supplied listing details.
Answers are written from approved, priced listings on US RV Connection— asking prices, not sale prices — and from what the dealers' own descriptions say. Figures in the strip above are live; the answers refresh as inventory changes.