My Wife and I will do 16-19 hour stretches. But mostly, we keep it to about 12.
I did about seven or eight hours of the thirteen hour trip from Chicago to Washington DC before my wife switched off with me. I don’t sleep or read well in cars so I’d rather be driving but she insisted. Probably a combination of wanting to be fair, wanting to give me a break and her being bored as well.
We used to do 6+ hour trips to the upper part of lower MI once a year or so before finding a closer vacation spot. I could do that on my own easily but we split it anyway.
I used to drive from Pittsburgh, PA to Hilton Head, SC for vacations. It’s about 700 miles. The only bad part was that I worked an 8 hour day, came home and packed, then hit the road.
I was in the Air Force for 20 yrs and 15 of those years I was stationed about 1,000 miles from home. I drove it straight thru, 13-16 hrs, many, many times. My wife would occassionally drive a couple hours, as I get really bored as a passenger.
When the kids were little, it was easyist to give them blankets and pillows and drive thru the night.
It just so happens that I’m doing the trip in reverse TODAY! Two of my daughters are where I was last stationed and I’m going to go see my newest granddaughter for the first time! The car is packed and I’m leaving right from work - so I’ll stop somewhere on the way.
I’ll decide if I drive the trip back straight thru the day before.
I find an elec. drivers seat a GREAT advantage to long distance driving. It’s ability to move the seat, just a bit, in multiple directions, makes a HUGE difference. Cruise control is nice too. I also take a small pillow to prop my arm or use for lumbar support. And I streatch every time I get out of the car…
In college, a gf and I took her brand new Civic hatchback out west. Took it back the next month for its 15000 mi service.
In a day? I used to visit same gf when she was in south Florida. Google says 864 miles. I’d stop twice for gas - something to eat at one of the stops. Bonus points - I didn’t have a radio in my car.
Tonight I’m driving from San Francisco to San Diego, 500 miles. Then we drive back on Sunday.
The most in a 24-hour stretch was about 1,200 miles.
A few years back my wife, dog and I took a 4-week road trip vacation throughout the southwest USA. That was a 9,000 mile road trip.
8 to 9 hours of driving is pretty easy. The furthest I’ve gone is from Baltimore to St. George SC, dropped a friend off and drove back to Baltimore. Took about 17 hours and 1100 miles.
Before I got married I regularly would drive from SoCal to Burlington, WA for the first couple of weeks of July. It’s usually a two-day trip, but I’ve done the whole schmear in one go several times. That’s 1270 miles, and the last trip I did it in exactly 18 hours, driveway to driveway.
Since marriage we’ve limited the road trips to 350 miles or so (SoCal - Bay Area).
When we lived in Bristol, VA, my wife and I used to periodically drive 800 miles from there to her folks outside of Tampa, FL, because plane tickets from Tri-Cities to anywhere were expensive, and we didn’t have much money at the time.
We’d do it in one day, too: if we took two days each way, we’d spend almost as much time driving as being there if we were away from home 10 days.
For road trips in general, back in the summer of 1983, I did 10,000 miles over the course of 6 weeks, driving from the east coast to out west, and doing a big loop around the western half of the country, seeing the Grand Canyon on the outbound trip, up the West Coast, and spending a week in Glacier NP on the homeward trip. Best trip ever.
Several long trips for vacation:
Anchorage to Prudhoe Bay: 858 mi
Anchorage to Inuvik, NWT: 1449 mi
Portland to Albuquerque: 1500 (although we drove all over the SW once we got there)
Los Angeles to Minneapolis (many times): 1926 mi
Seattle to Minneapolis (many times): 1600
Los Angeles to Boston: 3,000
Double them all for the return leg.
When we retired, we did a 6 month road trip starting in Anchorage that put about 8,000 miles on the odometer.
We do the round trip of eastern CT - Rochester NY one weekend a month, visiting my Mom.
We have done the east coast to west coast round trip vacations 3 times [twice Va Beach - Fresno and back again, once eastern CT - Fresno - Key West - CT last Feb. All 3 times the trip was effectively a month.] Next time on that trip I will solo CT - Reno, then a week to Fresno, then solo back, mrAru has a job now and can’t take a month off like he did in the Navy or when he was unemployed. It takes about a week for me to drive each way.
Longest I have personally driven in one go was Rochester NY to Twin Cities Minn. I took walk around the car and coffee breaks and it ended up being about 26 hours. Got to love being young and foolish. At least when I went through Chicago it was 2 am and there was no traffic to deal with.
I’ve driven from St. Louis to St. Paul and back a number of times. My wife’s brother lives up there.
We live near St. Louis and have family in Cincinnati so we make that 330 mile ride frequently.
Our daughter was going to college in Texas. We’d drove that 660 miles in one day many times. Sometimes we would stop at a hotel for a night if too tired.
Back in the day I use to drive from New Mexico to Cincinnati in one day. 1250 miles. If I got tired I’d sleep in a rest stop for a couple of hours.
I’ve ridden my bicycle across Iowa twice and Missouri about 6 times. 
We drive as far as we can in two to three weeks - our vacations are usually road trips. Our longest one so far is Calgary to Chicago and back (1600 miles one way). Our vacation plans for this summer are to drive down the California coast - about 1330 miles one way. We try to keep the daily driving down to about eight hours a day - longer than that and it starts getting to be too much. We can both drive (our cars are both manuals, but we can both drive them), but Jim is a driving machine - he does almost all of the driving on our road trips.
4 hour drives, we do at any time, no thought or planning necessary, to visit people for a weekend.
6 hr drives, usually we try to make it a 3 day weekend, but it’s still a “let’s go visit X” kind of decision.
Much over about 8 hours of drive time, and unless the journey is the goal, we’ll be looking at plane tickets.
I did Atlanta, GA to Sandusky, OH (about 700 miles) a few times last summer. Most of the time we drove straight through, but once we broke up the trip and stayed in a hotel about half way.
I do lots of road trips with my buddies in the miata club from Calgary. We’ve driven to Texas, Moab, Utah and several times to Vegas. Last summer we drove the Top of the world Highway (first miatas dumb enough to do that). We usually drive 6 or 7 hundred kilometers a day but have done up to 1100 driving back from Texas in 3 days.
Awesome way to see the world with the top down.
I take 3-4 hour driving trips with no hesitation. Going from home (Chicago) to visit family and friends in Green Bay is about a 4-hour trip, and we do it every few months.
There’s a gaming convention in Columbus, OH, which I attend every summer. That’s a 6-7 hour drive – it’s only right at the end of that drive that I start to notice how long I’ve been behind the wheel.
We used to take road trips up to Minneapolis / St. Paul every year or two – that’s 8 hours, and starts to feel like a long time in the car.
About a decade ago, my wife and I took a driving vacation out west. We went to the Grand Canyon, then Vegas, then Yosemite, then Yellowstone. There were a lot of 8-9 hour days, and two 12-hour days, in the car. Switching off driving duties, and listening to audiobooks, helped pass the time, but those long days were pretty brutal.
I used to frequently make day trips to see clients in Bloomington and Decatur, IL…those were about 2 1/2 and 3 hour trips, each way, respectively, and I’d nearly always go down and back in the same day.
My wife and I split driving duty on very long road trips. We’ve done a round-trip from New York to San Diego, one to Salt Lake City, and one to Edmonton and most recently to Mount Rushmore. We’ve also flown to San Francisco and driven up to redwood country where the drive-through tree is and down to Monterey and to Sequoia National Park.
I am horrible with long trips in cars.
The most I can do is about four hours a day - tops.
Then I insist on getting a motel/hotel and stopping.
I just get really, really bored sitting in a car for over four hours.
People laughed when it would take me two days from LA to SF…I insisted on a stop over somewhere in between.
Back when we lived in LA and would drive to Las Vegas as tourists, it was just about my limit to get here and the last half hour was sheer agony.