Distance between cities › USA › Texas › Austin, TX › Distance from Austin to Union Book Hotels

Distance from Austin, TX to Union, MO

Distance

782 mi

Time

14 hours 21 mins

Gas Cost

$72 - $139

There are 683.05 miles from Austin to Union in northeast direction and 782 miles (1,258.51 kilometers) by car, following the I-44 route.

Austin and Union are 14 hours 21 mins far apart, if you drive non-stop .

This is the fastest route from Austin, TX to Union, MO. The halfway point is Rentiesville, OK.

Austin, TX and Union, MO are in the same time zone (CDT). Current time in both locations is 9:59 pm.

Any questions or tips to share?

Share with fellow travellers any question or tips about the route from Austin, TX to Union, MO:

Lowest Price Rental Cars in Austin, TX

Planning on renting a car to go from Austin, TX to Union, MO? Here there are some offers to rent a car in Austin, TX

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Austin »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 31.39 gallons of gas to cover the route between Austin, TX and Union, MO.

The estimated cost of gas to go from Austin to Union is $100.57.

During the route, an average car will release 615 pounds of CO₂ to the atmosphere. The carbon footprint would be 0.79 pounds of CO₂ per mile.

Average USA gas price used for calculation is $3.20 per gallon of regular gas. Price last updated on March 11, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Austin, TX and Union, MO

If you want to meet halfway between Austin, TX and Union, MO or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 35.542015 and -95.469337, or 35º 32' 31.254" N, 95º 28' 9.6132" W. This location is 390.81 miles away from Austin, TX and Union, MO and it would take approximately 7 hours 10 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Rentiesville, OK, situated 412 miles from Austin, TX and 374 miles from Union, MO. It would take 6 hours 24 mins to go from Austin to Rentiesville and 5 hours 45 mins to go from Union to Rentiesville.