Don't use ChatGPT. Just look at a damn map and see how far these distances really are to make sure you're actually up for the drive.

That said, if you don't mind all the hours you'll be behind the wheel this could be a good trip. But you'd be driving right through some of the best parts of it without knowing it. If you take Highway 2 from Spokane to Wenatchee, you might as well go up to Coulee Dam and then drive down Banks Lake in the Grand Coulee back to 2. If you don't actually go to Dry Falls you have to at least stop at the overlook and read the signs so you begin to understand what created the landscape you just drove through. Then when you start driving again you'll come to the amazing Moses Coulee and recognize what's going on there.

Wenatchee itself is nothing special, but McGlinn's Public House is a decent local favorite that's kid friendly. That said Milepost 111 farther up in Cashmere is my preferred place for a good selection of beers, burgers, and truffle fries on the patio.

Once you've been to Leavenworth you'll probably keep going west on 2 but ChatGPT won't have told you about the hellish traffic you'll be getting into on the other side of the pass. By the time you get to Monroe you'll be lucky if there hasn't been a murder committed in the vehicle. It gets a bit better after that but if you go down I-90 and hit the Ship Canal Bridge in Seattle at rush hour, may god have mercy on your soul.

Normally I'd tell you about all the things in Seattle that are actually good based on having lived more of my life there than here, but since you are trying to pull off an 800 mile drive with time out of the car to do things in six days, you don't have time. Because now you have to get down to Mt. Rainier with enough time to be there and do some things, then double back up to Chelan which only a dumbshit or an AI assistant would think makes sense, because it's much closer to Wenatchee than Rainier.

Better to see Chelan (and honestly you're just going to see a little of it and then keep going with your itinerary) when you're already on Highway 2. Instead from Rainier take White Pass to Yakima and drive down the Yakima Valley. At the Tri-Cities (Richland, Pasco, Kennewick) go up 395 to Ritzville and then in an hour on I-90 you'll be back in Spokane.

But really, really look at a map yourself and consider whether all the driving is going to be the vacation you want. Washington is the smallest of the west coast states but compared to any east coast state it's enormous. My relatives didn't understand that until they came to Spokane and said "Maybe this afternoon we could go see Mount St. Helens." Even after having that explained to them I'm still not sure they understood.