Jayco Jay-Flight-Slx vs Keystone 3900dbl

Searchshop currently shows 1,675 listings for the Jayco Jay-Flight-Slx from 36 dealers alongside 8 listings for the Keystone 3900dbl from 7 dealers, with prices and dealer locations updated continuously. On price, the Jayco Jay-Flight-Slx runs roughly 68% below the Keystone 3900dbl at the median ($22,995 vs $70,999), which adds up across the typical loan term. Listings span model years 2016–2027 for the Jayco Jay-Flight-Slx and 2026–2026 for the Keystone 3900dbl, so there's flexibility on both sides whether you're cross-shopping new, late-model, or used.

A live-data comparison like Jayco Jay-Flight-Slx vs Keystone 3900dbl gives recreational vehicles buyers a more realistic picture than spec sheets alone — the prices shown here reflect actual dealer asking prices, not MSRP. When evaluating recreational vehicles at this price point, experienced buyers typically weigh tow vehicle compatibility, slide-out count, floorplan layout, and fresh/gray water capacity alongside the headline number. The Jayco Jay-Flight-Slx currently carries the lower median asking price, which compounds meaningfully over a 48-to-72-month financing term — even a modest gap per month adds up to hundreds of dollars by payoff. Broader selection from the Jayco Jay-Flight-Slx side gives buyers more negotiating room and reduces the chance of settling on a unit that's slightly off on color, trim, or mileage. Request a dealer walkthrough that covers the roof seams, slideout seals, and holding-tank systems — issues in those areas are the most common source of expensive post-purchase repairs on recreational vehicles. Factor in campground fees, insurance, and seasonal storage costs when comparing total ownership cost between these two models, since those ongoing expenses often exceed the monthly payment difference. Listings refresh continuously as dealers update their feeds — check back if a specific recreational vehicles you're tracking changes in price or status.