Thornton to Denver Airport drive time
Thornton is located directly north of Denver, approximately 20–28 miles from DIA.
- South Thornton (near I-25 / 104th Ave): 25–35 minutes via I-76 East to I-270 to I-70 East
- North Thornton (near 136th Ave / E-470): 25–35 minutes via E-470 East to Peña Blvd — a very direct route
- Off-peak: 22–30 minutes
- Peak morning traffic: 35–50 minutes
North Thornton residents near E-470 have a particularly straight shot to DIA — E-470 runs directly to Peña Blvd without any traffic lights.
Best parking for Thornton DIA travelers
Because of Thornton's relatively short drive to DIA, off-airport parking near the airport is the clear winner for any trip over 2 days. A rideshare from Thornton to DIA costs $35–$55 each way — off-airport parking costs $9–$15/day total with a free return shuttle.
- Canopy Airport Parking — from $9/day. Best overall value near DIA.
- ParkDIA — from $11/day, 7,500 spaces. Best for busy holiday periods.
- Park2Jet — from $9.99/day. Reliable budget option.
All lots are located 5–15 minutes from the DIA terminal via free shuttle. Book online in advance at Windy Parking to lock in the lowest rate.