Homes under $400K in Ontario, CA
30 for sale · 49 homes listed · Updated November 9, 2026
- 2139 East 4th Unit 84, Ontario 91764 $224,990 · 3 bd · 2 ba · 1,344 sqft
- 1106 West Philadelphia Street, Ontario 91762 $375,000 · 2 bd · 1 ba · 918 sqft
- 3706 Lytle Creek, Ontario 91761 $245,000 · 1 ba · 400 sqft
- 1456 East Philadelphia Unit 132, Ontario 91761 $65,000 · 2 bd · 2 ba · 1,392 sqft
- 1456 East Philadelphia Unit 161, Ontario 91761 $159,999 · 3 bd · 2 ba · 1,440 sqft
- 920 South Palmetto Avenue Unit 9, Ontario 91762 $325,000 · 2 bd · 1 ba · 686 sqft
- 1456 East Philadelphia Unit #266, Ontario 91761 $119,000 · 3 bd · 2 ba · 1,836 sqft
- 1855 East Riverside Unit 254, Ontario 91761 $119,800 · 3 bd · 2 ba · 1,176 sqft
- 1456 East Philadelphia Unit 121, Ontario 91761 $94,000 · 2 bd · 2 ba · 1,440 sqft
- 1456 East Philadelphia Unit 186, Ontario 91761 $119,000 · 2 bd · 2 ba · 1,880 sqft
- 3707 Oak Creek Drive Unit A, Ontario 91761 $269,950 · 1 bd · 1 ba · 507 sqft
- 1150 West Phillips Street Unit 244, Ontario 91762 $389,000 · 2 bd · 2 ba · 956 sqft
- 416 North Imperial Avenue Unit A, Ontario 91764 $345,000 · 2 bd · 1 ba · 788 sqft
- 1456 East Philadelphia Unit 65, Ontario 91761 $160,000 · 2 bd · 2 ba · 1,780 sqft
- 3732 Oak Creek Unit H, Ontario 91761 $250,000 · 1 ba · 400 sqft
- 3706 Lytle Creek, Ontario 91761 $245,000 · 1 ba · 400 sqft
- 3707 Oak Creek Dr A, Ontario 91761 $279,900 · 1 bd · 1 ba · 507 sqft
- 416 North Imperial Ave A, Ontario 91764 $345,000 · 2 bd · 1 ba · 788 sqft
- 912 South Mountain Apt D, Ontario 91762 $399,000 · 2 bd · 2 ba · 960 sqft
- 912 South Mountain Unit Apt D, Ontario 91762 $399,000 · 2 bd · 2 ba · 960 sqft
- 1325 North San Diego, Ontario 91764 $385,000 · 2 bd · 1 ba · 816 sqft
- 2300 South Sultana Unit 214, Ontario 91761 $199,000 · 3 bd · 2 ba · 1,081 sqft
- 969 South Mountain, Ontario 91762 $350,000 · 1 bd · 1 ba · 904 sqft
- 969 South Mountain, Ontario 91762 $350,000 · 1 bd · 1 ba · 904 sqft
- 1309 West Mission Boulevard Unit 5, Ontario 91762 $389,800 · 2 bd · 2 ba · 845 sqft
- 1325 North San Diego, Ontario 91764 $385,000 · 2 bd · 1 ba · 816 sqft
- 3651 Country Oaks Loop #B, Ontario 91761 $229,000 · 1 bd · 1 ba · 400 sqft
- 3639 Country Oaks Loop #D, Ontario 91761 $315,000 · 1 bd · 1 ba · 507 sqft
- 1456 Philadelphia Unit 427, Ontario 91761 $119,888 · 3 bd · 2 ba · 1,600 sqft
- 3732 Oak Creek Drive #B, Ontario 91761 $255,000 · 1 ba · 340 sqft
- 2139 East 4th 13, Ontario 91764 Pending $175,000 · 3 bd · 2 ba · 1,536 sqft
- 1456 East Philadelphia 143, Ontario 91761 Pending $175,000 · 3 bd · 2 ba · 1,652 sqft
- 1814 North Vineyard G, Ontario 91764 Pending $399,000 · 2 bd · 1 ba · 1,234 sqft
- 3633 Country Oaks Loop D, Ontario 91761 Pending $369,888 · 2 bd · 2 ba · 743 sqft
- 3633 Country Oaks Loop Unit D, Ontario 91761 Pending $369,888 · 2 bd · 2 ba · 743 sqft
- 3633 Country Oaks Loop D, Ontario 91761 Pending $369,888 · 2 bd · 2 ba · 743 sqft
- 1228 South Cypress Unit E, Ontario 91762 Pending $399,900 · 2 bd · 2 ba · 1,232 sqft
- 1228 South Cypress #E, Ontario 91762 Pending $399,900 · 2 bd · 2 ba · 1,232 sqft
- 3651 Country Oaks Loop D, Ontario 91761 Active Under Contract $338,000 · 2 bd · 2 ba · 743 sqft
- 416 North Imperial Avenue Unit 27-E, Ontario 91764 Active Under Contract $314,990 · 2 bd · 1 ba · 788 sqft
- 1047 West Francis C, Ontario 91762 Active Under Contract $299,000 · 1 bd · 1 ba · 546 sqft
- 1047 West Francis Unit C, Ontario 91762 Active Under Contract $299,000 · 1 bd · 1 ba · 546 sqft
- 960 North Tangent Privado Unit 303, Ontario 91764 Active Under Contract $369,999 · 1 bd · 1 ba · 654 sqft
- 1456 East Philadelphia Unit 152, Ontario 91761 Active Under Contract $84,999 · 2 bd · 2 ba · 1,536 sqft
- 1112 South Cypress, Ontario 91762 Sold on Aug 28, 2026 $359,000 · 2 bd · 3 ba · 1,082 sqft
- 1456 East Philadelphia 117, Ontario 91761 Off market since Aug 2026 $125,000 · 2 bd · 2 ba · 1,248 sqft
- 428 North Imperial Avenue C, Ontario 91764 Sold on Jul 13, 2026 $329,800 · 2 bd · 1 ba · 752 sqft
- 1855 East Riverside 418, Ontario 91761 Off market since Sep 2026 $214,000 · 3 bd · 2 ba · 1,152 sqft
- 3640 Oak Creek Drive D, Ontario 91761 Off market since Aug 2026 $375,000 · 2 bd · 2 ba · 743 sqft