Used Cadillac Xt6 for Sale in O Fallon, IL

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$32,500
$32,500 above
$958/mo est. ?
94,848 km

Authorized EpicVIN dealer

63110, St. Louis MO

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$44,900
$44,900 above
$1,324/mo est. ?
37,090 km

Authorized EpicVIN dealer

62269, O Fallon IL

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$34,212
$34,212 above
$1,009/mo est. ?
108,231 km

Weber Ford

Authorized EpicVIN dealer

4.6 Google 297 reviews

62040, Granite City IL

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$40,985
$40,985 above
$1,209/mo est. ?
56,681 km 3.6L

Quality Buick GMC Cadillac

Authorized EpicVIN dealer

4.6 Google 359 reviews

62002, Alton IL

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$36,705
$36,705 above
$1,082/mo est. ?
45,668 km

Bommarito Honda Superstore

4.7 Google 2027 reviews

63042, Hazelwood MO

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$41,999
$41,999 above
$1,238/mo est. ?
72,053 km

63141, Creve Coeur MO

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$37,587
$37,587 above
$1,108/mo est. ?
0 km

Dean Team Volvo of St. Louis

3.8 Google 375 reviews

63143, Maplewood MO

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$37,620
$37,620 above
$1,109/mo est. ?
79,104 km

Bommarito Toyota

4.6
Star icon
3 reviews
4.6 Google 1344 reviews

63042, Hazelwood MO

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$46,405
$46,405 above
$1,368/mo est. ?
33,811 km

Jim Butler Chevrolet

63026, Fenton MO

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$45,587
$45,587 above
$1,344/mo est. ?
31,702 km

Dean Team Volvo of St. Louis

3.8 Google 375 reviews

63143, Maplewood MO

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$29,995
$29,995 above
$885/mo est. ?
156,368 km 3.6L

63031, Florissant MO

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$42,576
$42,576 above
$1,255/mo est. ?
27,191 km

Frank Leta Acura - Lifetime Warranty On Every New Acura

4.7 Google 1780 reviews

63128, St. Louis MO

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$39,985
$39,985 above
$1,179/mo est. ?
54,827 km

Quality Buick GMC Cadillac

4.6 Google 359 reviews

62002, Alton IL

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$39,980
$39,980 above
$1,179/mo est. ?
80,657 km

63044, Bridgeton MO

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$48,110
$48,110 above
$1,419/mo est. ?
42,477 km

Bommarito Chevrolet South

63123, SAINT GEORGE MO

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$49,500
$49,500 above
$1,460/mo est. ?
22,463 km

Jack Schmitt Ford

4.6 Google 1179 reviews

62234, Collinsville IL

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$39,760
$39,760 above
$1,172/mo est. ?
65,125 km 3.6L

Jack Schmitt Chevrolet of O'Fallon

4.0
Star icon
4 reviews

62269, O Fallon IL

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$39,817
$39,817 above
$1,174/mo est. ?
74,007 km 3.6L

Jack Schmitt Chevrolet of O'Fallon

4.0
Star icon
4 reviews

62269, O Fallon IL

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$40,931
$40,931 above
$1,207/mo est. ?
46,800 km 3.6L

Jim Butler Chevrolet

63026, Fenton MO

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$42,477
$42,477 above
$1,253/mo est. ?
67,925 km

Quality Buick GMC Cadillac

4.6 Google 359 reviews

62002, Alton IL

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$43,995
$43,995 above
$1,297/mo est. ?
69,583 km

Dream Nissan Midwest

62095, Wood River IL

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Frequently Asked Questions

Our marketplace currently lists 21 used cars in O Fallon, IL from dealers and private sellers. Prices range from $39,615 to $44,619.

Top brands by active listings in O Fallon, IL are Cadillac. The mix often reflects local buying preferences.

The average listed price in O Fallon, IL is $41,283. Browse by budget: under $10,000, under $20,000, or under $30,000.

No — you can buy from a seller in O Fallon, IL regardless of your state of residence. You'll need to register and title the vehicle in your home state within the required window (usually 30 days). Local dealers typically handle paperwork for out-of-state buyers.

Yes — popular nearby options include cities across the state. You can also browse all used cars in Illinois.