List of Interstate Highways in Oklahoma

	Highway markers for Interstate 40, Interstate 240, and Interstate 40 Business
	Interstate Highways highlighted in red
System information
Formed	August 14, 1957
Highway names
Interstates	Interstate X (I-X)
Business Loops and Spurs:	Interstate X Business (I-X Bus.)
System links
	Oklahoma State Highway System; Interstate; US; State; Turnpikes;

Interstate Highways in Oklahoma form a network of freeways that cross the state. Several of them incorporated existing or already-planned turnpikes and continue to be maintained by the Oklahoma Turnpike Authority.^[2]


Number	Length (mi)	Length (km)	Southern or western terminus	Northern or eastern terminus	Formed	Removed	Notes
I-35	235.96	379.74	Texas state line south of Thackerville	Kansas state line north of Braman	01971-01-011971	current
I-40	331	533	Texas state line west of Erick	Arkansas state line west of Fort Smith, Arkansas	01959-01-011959	current
I-42	166	267	I-35 in Noble County, Oklahoma	Arkansas state line in Siloam Springs, Arkansas	proposed	—	Approved Future Interstate
I-44	328.53	528.72	Texas state line north of Burkburnett, Tex.	Missouri state line west of Joplin, Mo.	01964-04-231964	current	Follows the route of the H. E. Bailey Turnpike, Turner Turnpike, and Will Rogers Turnpike
I-235	5.36	8.63	I-35/I-40/US-77/US-270 in Oklahoma City	I-44/US-77 in Oklahoma City	01976-07-131976^[3]	current
I-240	26.22	42.20	I-344 (Kilpatrick Turnpike) in Oklahoma City	I-40 in Oklahoma City	01965-01-011965	current	In 2024, I-240 was extended west following I-44 to SH-152 to I-344 adding 10 miles (16 km) to the route
I-244	15.75	25.35	I-44/SH-66 in Tulsa	I-44/US-412/SH-66 in Tulsa	01967-01-011967	current
I-335	19.6	31.5	I-40 near Oklahoma City	I-44 in Luther	02024-01-012024^[4]	current	Redesignation of Kickapoo Turnpike; will be extended to I-35 in the future
I-343	52.31	84.18	Creek Turnpike in Broken Arrow	I-40 near Webbers Falls	proposed	—	Approved Future Interstate; redesignation of Muskogee Turnpike^[5]^[6]
I-344	31.0	49.9	I-240 in Oklahoma City	I-35/I-44 near Oklahoma City	02024-01-012024^[4]	current	Redesignation of Kilpatrick Turnpike
I-440	—	—	in Oklahoma City	I-35 in Oklahoma City	—	01965-01-01c. 1965	Became part of I-240, currently part of I-44
I-444	2.51	4.04	I-244/US-64/SH-51 in Tulsa	I-244/US-75 in Tulsa	—	—	Unsigned highway
I-644	32.79	52.77	I-44 (Turner Turnpike) in Sapulpa	I-44 (Will Rogers Turnpike)/US-412 in Fair Oaks	proposed	—	Approved Future Interstate; Redesignation of Creek Turnpike^[7]
Former Proposed and unbuilt

References

↑ Public Roads Administration (August 14, 1957). Official Route Numbering for the National System of Interstate and Defense Highways as Adopted by the American Association of State Highway Officials (Map). Scale not given. Washington, DC: Public Roads Administration. Retrieved March 3, 2013 – via Wikimedia Commons.
↑ Cockerell, Penny (June 29, 2006). "50 Years: As the intersection of Interstates 35, 40 and 44, Oklahoma is at America's crossroads". The Oklahoman. pp. 1A, 2A. Retrieved March 1, 2023 – via Newspapers.com.
↑ Rhodes, H. J. (July 15, 1976). "Letter to V. O. Bradley, Director of the Oklahoma State Highway Department" (PDF). American Association of State Highway and Transportation Officials. p. 8. Retrieved May 24, 2013.
1 2 Special Committee on U.S. Route Numbering (November 2023). "2023 Fall Meeting Report to the Council on Highways and Streets" (PDF) (Report). Washington, DC: American Association of State Highway and Transportation Officials. p. 5. Archived (PDF) from the original on December 5, 2023. Retrieved March 10, 2024.
↑ Special Committee on U.S. Route Numbering (2025). "2025 Annual Meeting Report to the Council on Highways and Streets" (Report). Washington, DC: American Association of State Highway and Transportation Officials. Retrieved December 3, 2025 – via AASHTO Route Numbering Archive.
↑ Oklahoma Transportation Commission (May 5, 2025). "Agenda for the Special Transportation Committee Meeting" (PDF). Oklahoma Transportation Commission. Retrieved May 6, 2025.
↑ Oklahoma Transportation Commission (April 7, 2025). "Minutes for the Special Transportation Committee Meeting" (PDF). Oklahoma Transportation Commission. Retrieved April 8, 2025.

External links

OKHighways by Eric Stuve

[1957map-1] Public Roads Administration (August 14, 1957). Official Route Numbering for the National System of Interstate and Defense Highways as Adopted by the American Association of State Highway Officials (Map). Scale not given. Washington, DC: Public Roads Administration. Retrieved March 3, 2013 – via Wikimedia Commons.

[2] Cockerell, Penny (June 29, 2006). "50 Years: As the intersection of Interstates 35, 40 and 44, Oklahoma is at America's crossroads". The Oklahoman. pp. 1A, 2A. Retrieved March 1, 2023 – via Newspapers.com.

[action11-3] Rhodes, H. J. (July 15, 1976). "Letter to V. O. Bradley, Director of the Oklahoma State Highway Department" (PDF). American Association of State Highway and Transportation Officials. p. 8. Retrieved May 24, 2013.

[AASHTO-4] 1 2 Special Committee on U.S. Route Numbering (November 2023). "2023 Fall Meeting Report to the Council on Highways and Streets" (PDF) (Report). Washington, DC: American Association of State Highway and Transportation Officials. p. 5. Archived (PDF) from the original on December 5, 2023. Retrieved March 10, 2024.

[5] Special Committee on U.S. Route Numbering (2025). "2025 Annual Meeting Report to the Council on Highways and Streets" (Report). Washington, DC: American Association of State Highway and Transportation Officials. Retrieved December 3, 2025 – via AASHTO Route Numbering Archive.

[6] Oklahoma Transportation Commission (May 5, 2025). "Agenda for the Special Transportation Committee Meeting" (PDF). Oklahoma Transportation Commission. Retrieved May 6, 2025.

[7] Oklahoma Transportation Commission (April 7, 2025). "Minutes for the Special Transportation Committee Meeting" (PDF). Oklahoma Transportation Commission. Retrieved April 8, 2025.

[2]