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

Specification2024 Airstream Interstate 192025 Thor Tranquility 19LAdvantage
CategoryClass BCampervan
Year202420252025 Thor Tranquility 19L
Length18 ft19 ft
Width6.5 ft7.5 ft
Height9 ft10.5 ft
Dry Weight7,000 lbs8,400 lbs
GVWR12,000 lbs11,200 lbs
Sleeping Capacity322024 Airstream Interstate 19
Fresh Water28 gal25 gal2024 Airstream Interstate 19
Gray Water19 gal13 gal2024 Airstream Interstate 19
Black Water14 gal14 galTie
Fuel Capacity25 gal27 gal2025 Thor Tranquility 19L
Horsepower188 hp188 hpTie
EngineMercedes-Benz 3.0L V6 Turbo DieselMercedes-Benz 3.0L V6 Turbo Diesel
Slide-Outs00
Solar250 W250 WTie
Battery550 Ah350 Ah2024 Airstream Interstate 19
Inverter2,000 W1,000 W2024 Airstream Interstate 19
MSRP$276,000$220,0002025 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
View Full Specs

2025 Thor Tranquility 19L

  • Category: Campervan
  • Length: 19 ft
  • Weight: 8,400 lbs
  • Sleeps: 2
  • MSRP: $220,000
View Full Specs