The Best Unleaded Gas Prices from Casper, WY to Thornton, CO

Best Exit

Average Price

Highest

Entire Trip

Avg: $3.10

High: $4.10

7-Eleven

Exit 240 Longmont, CO

$2.789

$3.10

$4.099

Wyoming

Avg: $3.33

High: $4.47

Sinclair

Exit 187 Casper, WY

$2.959

Sinclair

Exit 185 Casper, WY

$2.959

$3.33

$4.469

Colorado

Avg: $3.18

High: $4.90

7-Eleven

Exit 240 Longmont, CO

$2.789

$3.18

$4.899

Show Breakdown By State

Only searching fuel stations along supported Interstates, which make up 99.7% (267.8 of 268.6 miles) of this trip.

Order by: Ranking
25 I-25 Northbound
EXIT 188A Center St Casper, Wyoming 23rd Best Exit Shell (W) - 0.15 miles 707 N Center St, Casper, WY 82601 $3.099 2 prices within 1 mile - Avg: $3.10
EXIT 188B WY-220 W; Poplar St Casper, Wyoming 18th Best Exit Conoco Left (S) - 0.96 miles 519 S Poplar St, Casper, WY 82601 $3.039 2 prices within 1 mile - Avg: $3.07
EXIT 188A US-87 BUS; Center St; I-25 BUS Casper, Wyoming 23rd Best Exit Conoco Left (N) - 0.05 miles 706 N Center St, Casper, WY 82601 $3.099 2 prices within 1 mile - Avg: $3.10
EXIT 187 Mc Kinley St Casper, Wyoming 12th Best Exit Sinclair Right (S) - 0.35 miles 902 E 2nd St, Casper, WY 82601 $2.959 2 prices within 1 mile - Avg: $2.96
EXIT 186 US-20 E; US-26 E; US-87 S; N Beverly St; Bryan Stock Trail Casper, Wyoming 22nd Best Exit Loaf N Jug Right (S) - 0.58 miles 1900 E 2nd St, Casper, WY 82601 $3.079 2 prices within 1 mile - Avg: $3.09
EXIT 185 Wyoming Blvd; Evansville Casper, Wyoming 12th Best Exit Sinclair Right (SW) - 0.36 miles 3476 E 2Nd St, Casper, WY 82609 $2.959 7 prices within 1 mile - Avg: $3.04
EXIT 182 Hat 6 Rd; Brooks Evansville, Wyoming 23rd Best Exit Sinclair Left (N) - 0.18 miles 6985 Nugget, Evansville, WY 82636 $3.099 1 prices within 1 mile - Avg: $3.10
PARKING AREA Parking Area Glenrock, Wyoming No gas stations detected here
EXIT 165 I-25 BUS; Glenrock; Rolling Hills Glenrock, Wyoming No gas stations detected here
EXIT 160 E Glenrock Glenrock, Wyoming No gas stations detected here
EXIT 151 Ayres Natural Bridge Douglas, Wyoming No gas stations detected here
EXIT 146 WY 96 Douglas, Wyoming No gas stations detected here
EXIT 140 I-25 BUS; Douglas; WY-59; Gillette Douglas, Wyoming 21st Best Exit Conoco Left (E) - 0.14 miles 1115 Yellowstone Hwy, Douglas, WY 82633 $3.069 3 prices within 1 mile - Avg: $3.18
EXIT 135 Douglas Douglas, Wyoming 39th Best Exit Broken Wheel Truck Stop Left (NW) - 0.17 miles 2332 E Richards St, Douglas, WY 82633 $3.599 >24h old 1 prices within 1 mile - Avg: $3.60
PARKING AREA Parking Area Douglas, Wyoming No gas stations detected here
EXIT 126 US-18; US-20 E Douglas, Wyoming 37th Best Exit Orin Junction Truck Stop Left (E) - 0.7 miles 75 US Hwy 18/20, Douglas, WY 82633 $3.499 1 prices within 1 mile - Avg: $3.50
EXIT 111 Glendo Glendo, Wyoming 40th Best Exit Sinclair Left (E) - 0.2 miles 106 A St, Glendo, WY 82213 $3.699 1 prices within 1 mile - Avg: $3.70
EXIT 104 Middle Bear Glendo, Wyoming No gas stations detected here
EXIT 100 Cassa Rd Glendo, Wyoming No gas stations detected here
EXIT 94 El Rancho Rd Wheatland, Wyoming No gas stations detected here
EXIT 92 US-26 E; Guernsey; Torrington Wheatland, Wyoming No gas stations detected here
EXIT 87 Johnson Rd Wheatland, Wyoming No gas stations detected here
EXIT 84 West Laramie River Road Wheatland, Wyoming No gas stations detected here
EXIT 80 Swanson Road;I 25 Business;US 87 Business Wheatland, Wyoming 37th Best Exit Sinclair Left (E) - 0.21 miles 81 Swanson Roar, Wheatland, WY 82201 $3.499 1 prices within 1 mile - Avg: $3.50
EXIT 78 Wheatland Wheatland, Wyoming 36th Best Exit Exxon Right (W) - 0.06 miles 1858 W Mariposa Pkwy, Wheatland, WY 82201 $3.419 4 prices within 1 mile - Avg: $3.54
EXIT 73 WY-34 W; Laramie Wheatland, Wyoming No gas stations detected here
EXIT 70 Bordeaux Rd Wheatland, Wyoming No gas stations detected here
EXIT 68 Antelope Rd Wheatland, Wyoming No gas stations detected here
EXIT 66 Hunton Creek Rd Wheatland, Wyoming No gas stations detected here
PARKING AREA Parking Area Wheatland, Wyoming No gas stations detected here
EXIT 65 Slater Rd Chugwater, Wyoming No gas stations detected here
EXIT 57 Interstate 25 Business Chugwater, Wyoming No gas stations detected here
EXIT 54 Chugwater Chugwater, Wyoming 41st Best Exit CHUG CHUG GAS AND GO Left (E) - 0.25 miles 503 Kelly Avenue, Chugwater, WY 82210 $4.099 >24h old 1 prices within 1 mile - Avg: $4.10
EXIT 47 E Bear Creek Road Chugwater, Wyoming No gas stations detected here
EXIT 39 Exit Cheyenne, Wyoming No gas stations detected here
EXIT 34 Nimmo Rd Cheyenne, Wyoming No gas stations detected here
EXIT 29 Whitaker Rd Cheyenne, Wyoming No gas stations detected here
EXIT 25 Exit Cheyenne, Wyoming No gas stations detected here
EXIT 21 Ridley Rd Cheyenne, Wyoming No gas stations detected here
EXIT 16 WY-211; Horse Creek Rd; US-85 N; Torrington Cheyenne, Wyoming No gas stations detected here
EXIT 13 Vandehei Ave Cheyenne, Wyoming 27th Best Exit Sinclair Right (W) - 0.05 miles 600 Vandehei Ave, Cheyenne, WY 82009 $3.119 3 prices within 1 mile - Avg: $3.13
EXIT 12 I-25 BUS; US-85 S; Central Ave Cheyenne, Wyoming 27th Best Exit Sinclair Left (E) - 0.12 miles 5405 Walker Rd, Cheyenne, WY 82009 $3.119 2 prices within 1 mile - Avg: $3.12
EXIT 11 Randall Ave; Pershing Blvd Cheyenne, Wyoming 33rd Best Exit Loaf N Jug Left (E) - 0.5 miles 820 Randall Ave, Cheyenne, WY 82001 $3.179 >24h old 1 prices within 1 mile - Avg: $3.18
EXIT 10B Warren Gate 2 Cheyenne, Wyoming No gas stations detected here
EXIT 10D Missile Drive Cheyenne, Wyoming No gas stations detected here
EXIT 9 US-30 W; Lincolnway Cheyenne, Wyoming 27th Best Exit Sinclair Right (W) - 0.14 miles 2800 W Lincolnway, Cheyenne, WY 82001 $3.119 2 prices within 1 mile - Avg: $3.12
EXIT 8B I 80 Cheyenne, Wyoming No gas stations detected here
EXIT 8D I 80 Cheyenne, Wyoming No gas stations detected here
EXIT 7 College Dr; WY-212 Cheyenne, Wyoming 20th Best Exit Flying J Right (W) - 0.13 miles 2250 Etchepare Dr, Cheyenne, WY 82007 $3.059 3 prices within 1 mile - Avg: $3.08
EXIT 4 High Plains Road Cheyenne, Wyoming No gas stations detected here
EXIT 2 WY-223; Terry Ranch Rd Cheyenne, Wyoming No gas stations detected here
STATE BORDER State Endpoint Cheyenne, Wyoming No gas stations detected here
STATE BORDER State Endpoint Cheyenne, Colorado No gas stations detected here
EXIT 293 Carr Carr, Colorado No gas stations detected here
EXIT 288 Buckeye Rd Carr, Colorado No gas stations detected here
EXIT 281 Owl Canyon Road Wellington, Colorado No gas stations detected here
EXIT 278 CO-1 S; Wellington Wellington, Colorado 9th Best Exit Kum & Go Right (SW) - 0.05 miles 8150 6th St, Wellington, CO 80549 $2.939 3 prices within 1 mile - Avg: $2.94
EXIT 271 Mountain Vista Dr Fort Collins, Colorado No gas stations detected here
EXIT 269B CO-14 W; Ft Collins Fort Collins, Colorado 23rd Best Exit Loaf N Jug Right (W) - 0.13 miles 3733 E Mulberry St, Fort Collins, CO 80524-8538 $3.099 3 prices within 1 mile - Avg: $3.12
EXIT 269A CO-14 E; Ault Fort Collins, Colorado 15th Best Exit Maverik Left (E) - 0.15 miles 651 Frontage Rd, Fort Collins, CO 80524 $2.999 2 prices within 1 mile - Avg: $3.05
EXIT 268 Prospect Rd Fort Collins, Colorado No gas stations detected here
WEIGH STATION Weigh Station Fort Collins, Colorado No gas stations detected here
EXIT 265 Harmony Rd Fort Collins, Colorado 2nd Best Exit Costco Gasoline Left (SE) - 0.32 miles 4705 Weitzel St, Timnath, CO 80547 $2.829 3 prices within 1 mile - Avg: $2.93
EXIT 262 CO-392; Windsor Loveland, Colorado 11th Best Exit Maverik Right (NW) - 0.16 miles 7490 Sw Frontage Rd, Fort Collins, CO 80528 $2.949 3 prices within 1 mile - Avg: $3.03
EXIT 259 Exit Loveland, Colorado 30th Best Exit Kum & Go Left (E) - 0.32 miles 4330 Clydesdale Pkwy, Loveland, CO 80538 $3.149 3 prices within 1 mile - Avg: $3.15
EXIT 257 US-34; Greeley; Loveland Loveland, Colorado 30th Best Exit Conoco Right (W) - 0.06 miles 5518 E US Highway 34, Loveland, CO 80537 $3.149 2 prices within 1 mile - Avg: $3.15
EXIT 255 CO-402 W; Loveland Johnstown, Colorado No gas stations detected here
EXIT 254 CO-60 W; Campion Johnstown, Colorado 34th Best Exit Petro Center Left (E) - 0.15 miles 2842 SE Frontage Rd, Johnstown, CO 80534 $3.189 1 prices within 1 mile - Avg: $3.19
EXIT 252 CO-60 E; Johnstown; Milliken Berthoud, Colorado 2nd Best Exit Loaf N Jug Right (NW) - 0.06 miles 67 Gateway Dr, Johnstown, CO 80534 $2.829 2 prices within 1 mile - Avg: $2.83
EXIT 250 CO-56 W; Berthoud Berthoud, Colorado 30th Best Exit Loves Right (W) - 0.14 miles 3800 E State Hwy 56, Berthoud, CO 80513 $3.149 1 prices within 1 mile - Avg: $3.15
EXIT 245 Mead Mead, Colorado 35th Best Exit Cenex Right (W) - 0.94 miles 201 3rd St, Mead, CO 80542 $3.359 1 prices within 1 mile - Avg: $3.36
EXIT 243 Colorado 66; Longmont; Lyons; Platteville Longmont, Colorado 9th Best Exit QuikTrip Right (W) - 0.29 miles 3571 Highland Dr, Mead, CO 80542 $2.939 4 prices within 1 mile - Avg: $3.08
EXIT 240 CO-119 W; Longmont; Firestone Longmont, Colorado 1st Best Exit 7-Eleven Right (SW) - 0.08 miles 3914 State Hwy 119, Longmont, CO 80504 $2.789 6 prices within 1 mile - Avg: $2.96
EXIT 235 CO-52; Dacono; Ft Lupton Erie, Colorado 12th Best Exit Texaco Left (E) - 0.28 miles 107 Laura Ct, Dacono, CO 80514 $2.959 4 prices within 1 mile - Avg: $3.05
EXIT 232 Erie Dacono Erie, Colorado No gas stations detected here
EXIT 229 CO-7; Lafayette; Brighton Broomfield, Colorado 6th Best Exit Costco Gasoline Right (S) - 0.69 miles 16375 Washington St, Broomfield, CO 80023 $2.889 2 prices within 1 mile - Avg: $2.94
EXIT 228 Northwest Parkway;E-470 Broomfield, Colorado No gas stations detected here
EXIT 226 144th Ave Denver, Colorado 15th Best Exit Murphy USA Left (E) - 0.37 miles 14375 Lincoln St, Northglenn, CO 80233 $2.999 2 prices within 1 mile - Avg: $3.02
EXIT 225 136th Ave Denver, Colorado 19th Best Exit Kum & Go Left (E) - 0.26 miles 250 E 136th Ave, Denver, CO 80241 $3.049 2 prices within 1 mile - Avg: $3.05
EXIT 223 120th Ave; CO-128 W Denver, Colorado 15th Best Exit Kum & Go Left (E) - 0.2 miles 237 E 120th Ave, Denver, CO 80233 $2.999 9 prices within 1 mile - Avg: $3.08
EXIT 221 104th Ave Denver, Colorado 6th Best Exit Shell Left (E) - 0.58 miles 10396 Washington St, Thornton, CO 80229-2004 $2.889 6 prices within 1 mile - Avg: $2.95
EXIT 220 Thornton Pkwy Denver, Colorado 4th Best Exit Sam's Club Gasoline Left (NE) - 0.28 miles 9601 Grant St, Thornton, CO 80229 $2.879 6 prices within 1 mile - Avg: $3.08
EXIT 220 Thornton Pkwy Denver, Colorado 4th Best Exit Sam's Club Gasoline Right (NE) - 0.2 miles 9601 Grant St, Thornton, CO 80229 $2.879 6 prices within 1 mile - Avg: $3.08
EXIT 221 104th Ave Denver, Colorado 6th Best Exit Shell Right (E) - 0.42 miles 10396 Washington St, Thornton, CO 80229-2004 $2.889 7 prices within 1 mile - Avg: $2.97

iExit says...

If possible, try to fill up in Colorado. On average, regular prices in Colorado are 15 cents cheaper than Wyoming.

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