2024 Airstream Interstate 19 vs 2025 Thor Tranquility 19L
RV buyers frequently compare the 2024 Airstream Interstate 19 and 2025 Thor Tranquility 19L. Understanding their differences can save you from buyer's remorse.
Specifications Comparison
| Specification | 2024 Airstream Interstate 19 | 2025 Thor Tranquility 19L | Advantage |
|---|---|---|---|
| Category | Class B | Campervan | — |
| Year | 2024 | 2025 | 2025 Thor Tranquility 19L |
| Length | 18 ft | 19 ft | — |
| Width | 6.5 ft | 7.5 ft | — |
| Height | 9 ft | 10.5 ft | — |
| Dry Weight | 7,000 lbs | 8,400 lbs | — |
| GVWR | 12,000 lbs | 11,200 lbs | — |
| Sleeping Capacity | 3 | 2 | 2024 Airstream Interstate 19 |
| Fresh Water | 28 gal | 25 gal | 2024 Airstream Interstate 19 |
| Gray Water | 19 gal | 13 gal | 2024 Airstream Interstate 19 |
| Black Water | 14 gal | 14 gal | Tie |
| Fuel Capacity | 25 gal | 27 gal | 2025 Thor Tranquility 19L |
| Horsepower | 188 hp | 188 hp | Tie |
| Engine | Mercedes-Benz 3.0L V6 Turbo Diesel | Mercedes-Benz 3.0L V6 Turbo Diesel | — |
| Slide-Outs | 0 | 0 | — |
| Solar | 250 W | 250 W | Tie |
| Battery | 550 Ah | 350 Ah | 2024 Airstream Interstate 19 |
| Inverter | 2,000 W | 1,000 W | 2024 Airstream Interstate 19 |
| MSRP | $276,000 | $220,000 | 2025 Thor Tranquility 19L |
Detailed Comparison
RV buyers frequently compare the 2024 Airstream Interstate 19 and 2025 Thor Tranquility 19L. Understanding their differences can save you from buyer's remorse.
In terms of footprint, the Airstream Interstate 19 stretches 18.0 ft while the Thor Tranquility 19L spans 19.0 ft. Weight-wise, the Airstream Interstate 19 is the lighter rig at 7,000 lbs versus 8,400 lbs.
Capacity-wise, expect to sleep 3 in the Airstream Interstate 19 versus 2 in the Thor Tranquility 19L.
Tank capacities are a key off-grid consideration. The Airstream Interstate 19 carries 28 gal of fresh water, 19 gal gray, and 14 gal black. The Thor Tranquility 19L offers 25 gal fresh, 13 gal gray, and 14 gal black. The Airstream Interstate 19 has the edge for extended dry camping.
Budget-wise, the Thor Tranquility 19L is listed at $220,000 compared to $276,000 for the Airstream Interstate 19. The $56,000 difference could cover upgrades, accessories, or several seasons of camping.
For two travelers seeking comfort without excess, the smaller footprint often wins. For boondocking, the model with superior solar and battery setup will keep you comfortable off the grid longer. For occasional getaways, the more affordable and nimble option usually makes the most sense.
At the end of the day, the best RV is the one that fits your travel dreams and budget. Either of these is a worthy choice.
Individual Overviews
2024 Airstream Interstate 19
- Category: Class B
- Length: 18 ft
- Weight: 7,000 lbs
- Sleeps: 3
- MSRP: $276,000
2025 Thor Tranquility 19L
- Category: Campervan
- Length: 19 ft
- Weight: 8,400 lbs
- Sleeps: 2
- MSRP: $220,000