Tulsa to Killeen Texas

Straight through on 75 assuming you don't go during rush hour.

I worked in downtown Dallas for several years. Have lived in Dallas area for 30+ years before going full-time, and with kids/ grandkids in the area still visit often.

I WILL NOT take I-35E from downtown Dallas with my truck/TT. I do take US-75->I-45->I-20->I-35E often. An easier, straight shot past downtown Dallas. The I-35E / I-30 Interchange requires too many lane changes too fast.

Taking the straight route vs I-635/I-20 loop depends upon time of day. Both roads are subject to rush hour delays. The straight thru has fewer non-freeway options if you get caught behind a backup. The Loop has more lanes and is quicker to clear accidents than the straight thru route.

The one thing to watch is where I-635 ends and becomes I-20. Be in the left lane when you get to the I-635/I-20 intersection. Watch for idiots on I-20 trying to cross five lanes of traffic from the far left to the far right in 1/3 mile to make the US-175 to Dallas exit.

The loop is less stressful for most folks.

Recommended times are between 10 am and 3 pm. Or before 7 am / after 7 pm.

Construction on US-75 north of Dallas is minimal delays through Allen/ Plano.

Construction on I-35 near Temple gets tight about 5 miles north of Temple and continues past Belton.

Nothing major, just no shoulders and 'small' lanes.

Do what PawPaw said.

I live just north of Dallas near 75 and go thru it frequently. After 9 am and before 4 pm follow 75 to downtown Dallas. Approaching downtown 75 will become I-45 toward Houston. Follow i-45 south to I-20. West on I-20 to I-35E. South on I-35E. That route will have the best roads, easiest highway transfers, and lesser traffic.

Stay off of I-635. And don't try to transfer from 75 to I-35E in the downtown area. Lots of construction in the I-35E/I-30 area downtown. And I-35E just south of downtown has narrow lanes with curves you really have to be careful on. Going straight down to I-20 avoids all that.