Interstate 435 (I-435) is an Interstate Highway beltway that encircles much of the Kansas City metropolitan area within the states of Kansas and Missouri in the United States.

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I-435, a loop route of I-35, is 83.02 miles (133.61 km) long and intersects with nearly every other Interstate Highway in the Kansas City area (except for I-635 and I-670). An additional 2.8 miles (4.5 km) near Kansas City International Airport is signed along with I-29 and U.S. Route 71 (US 71), making I-435 the second-longest complete beltway numbered as a single Interstate Highway in the US and seventh longest in the world after I-275 in Cincinnati, Ohio, at 83.71 miles (134.72 km); Beltway 8 in Houston, Texas, at 88 miles (142 km); Bundesautobahn 10 in Berlin at 122 miles (196 km); and M25 motorway in London at 117 miles (188 km); as well as 7th and 8th ring roads in Beijing. The majority—52.8 miles (85.0 km)—of I-435 is within the state of Missouri, and most of that roadway lies within the city limits of Kansas City. The first/last exit is at I-435's parent route, I-35, in Lenexa, Kansas. Going clockwise around Kansas City, the next interchange is exit 1A for Lackman Road. The milepost numbers do not start over when I-435 crosses the state line, but where it shares the same roadway as I-29, the latter's milepost (and therefore exit) numbering takes precedence.

The section of I-435 from mile marker 63.4 to mile marker 54.2 is designated as the Lamar Hunt Memorial Highway in honor of Lamar Hunt, the founder of the Kansas City Chiefs. This section of the highway passes near Arrowhead Stadium, the Chiefs' home stadium.

I-435 in Kansas City was built piece by piece starting in the mid-1960s and not finished until 1987.

In 1965, the first segment of I-435 was built and opened between I-35 and US 69 (which, at that time, was signed with Metcalf Avenue) near Overland Park, Kansas. A second segment was opened the same year between I-70 and US 50 in eastern Kansas City, Missouri, but the two were not connected. The eastern segment of I-435 was extended south to Gregory Boulevard and north past 22nd Street/Route 78 by 1968. By 1969, I-435 was fully built between these two segments, through southern and eastern Kansas City. The freeway was extended from 22nd Street/Route 78 to US 24 two years later. In 1973, I-435 was extended north from the former terminus of US 24 across the Missouri River to I-35 in Claycomo. It now extended halfway around the city. In 1983, a small segment was opened on the outskirts of Kansas City north between US 169 and Route 291 near Kansas City International Airport (KCI). Later, this small segment was connected with the rest of the freeway. A segment was built heading almost due north from I-35 in Claycomo to Route 291/Cookingham Drive at North Reinking Road, curving due west from there to US 169. In this year, the southwest end was also extended to K-10. In 1987, the freeway was opened all the way around the city. The northwest end was signed on I-29 for eight miles (13 km) northwest, then exited near Platte City and bore south on the westside of KCI. It crossed several small highways before crossing the Missouri River into Wyandotte County, Kansas. It continued generally south or southwest, crossed several state highways and I-70, then the Kaw River, before connecting with the former southwest end at K-10.

State	County	Location	mi	km	Exit	Destinations	Notes
Kansas	Johnson	Lenexa	0.97	1.56	1A	Lackman Road	Proposed Single Point Urban Interchange; eastbound exit via exit 83 on I-35
			1.35	2.17	1B	K-10 west – Lawrence	Eastern terminus of K-10; westbound becomes northbound and southbound becomes eastbound
			2.11	3.40	2	95th Street
			2.97	4.78	3	87th Street
		Shawnee	5.02	8.08	5	Midland Avenue
			5.99	9.64	6	Shawnee Mission Parkway	Northbound signed as exits 6A (east) and 6B (west)
			6.44	10.36	6C	Johnson Drive
			7.87	12.67	8A	Holliday Drive
	Wyandotte	Edwardsville	8.29	13.34	8B	Woodend Road
			8.99	14.47	9	K-32 – Kansas City, Bonner Springs
			10.99	17.69	11	Kansas Avenue
			11.98	19.28	12	I-70 / US-24 / US-40 / Kansas Turnpike west – Topeka, Kansas City, St. Louis	Northbound signed as exits 12A (east) and 12B (west); I-70 exit 411
		Kansas City	12.59	20.26	13	State Avenue	Signed as exits 13A (east) and 13B (west) northbound
			13.91	22.39	14	Parallel Parkway	Signed as exits 14A (east) and 14B (west)
			15.02	24.17	15	K-5 south (Leavenworth Road)	Southern end of K-5 concurrency; signed as exits 15A (south/east) and 15B (west)
			16.02	25.78	16	Donahoo Road
			17.98	28.94	18	K-5 north / Wolcott Drive	Northern end of K-5 concurrency
Kansas–Missouri line	Wyandotte–Platte county line	​	20.98– 21.35	33.76– 34.36	Missouri River crossing
Missouri	Platte	Parkville	22.02	35.44	22	Route 45 – Weston, Parkville
			23.98	38.59	24	Route 152 east / Route N (NW Barry Road)	Western terminus of Route 152; southern terminus of Route N
		​	29.02	46.70	29	Route D (NW 120th Street)
		Platte City	31.00	49.89	31	I-29 north / US 71 north – St Joseph	Northbound becomes eastbound and westbound becomes southbound; western end of I-29 / US 71 concurrency; signed as exit 17 on northbound I-29/US 71 and westbound I-435
		Kansas City	32.49	52.29	15	Mexico City Avenue	Exit number follows I-29
			34.02	54.75	14	I-29 south / US 71 south – Kansas City	Eastern end of I-29 / US 71 concurrency; eastbound exit and westbound entrance; exit 14 on I-29
			36.03	57.98	36	NW Cookingham Drive south to I-29 south / US 71 – KCI Airport	Eastbound signed as Cookingham Drive only; westbound signed to I-29 south / KCI Airport only; no access to eastbound Cookingham from westbound I-435; no access to eastbound I-435 from westbound Cookingham
			36.95	59.47	37	Route C (NW Skyview Avenue)
			39.91	64.23	40	NW Cookingham Drive
	Clay		41.11	66.16	41	US 169 (Arrowhead Trafficway) – Riverside, Smithville	Signed as exits 41A (south) and 41B (north)
			41.99	67.58	42	N Woodland Avenue
			45.02	72.45	45	Route 291 south (NE Cookingham Drive) to I-35 north	Northern terminus of Route 291; eastbound becomes southbound and northbound becomes westbound
			45.89	73.85	46	NE 108th Street
			47.02	75.67	47	NE 96th Street
			48.99	78.84	49	Route 152 – Liberty, Topeka	Signed as exits 49A (west) and 49B (east)
			50.89	81.90	51	Shoal Creek Parkway
			52.11	83.86	52A	US 69 to I-35 north – Claycomo
		Claycomo	52.13	83.90	52B	I-35 south – Kansas City I-35 north / Route 110 (CKC) east – Des Moines	No southbound exit to I-35 north/Route 110 (CKC) east; no northbound entrance from I-35 south; I-35 exit 12
		Kansas City	54.10	87.07	54	48th Street, Parvin Road - Worlds of Fun
		Randolph	54.89	88.34	55	Route 210 – Richmond, North Kansas City	Diverging diamond interchange completed in October 2018
	Clay–Jackson county line	Randolph–Kansas City line	55.34	89.06	Missouri River crossing
	Jackson	Kansas City	56.99	91.72	57	Front Street	Diverging diamond interchange, existing interchange converted November 2011
			59.03	95.00	59	US 24 east (Winner Road, Independence Avenue) – Kansas City, Independence	Eastern end of I-435 and US 24 concurrency
			60.09	96.71	60	Route 12 east (Truman Road) / 12th Street – Kansas City, Independence	12th Street signed southbound only
			61.19	98.48	61	Route 78 east (22nd Street) – Kansas City, Independence
			63.02	101.42	63A	US 40 – Truman Sports Complex	Southbound exit and northbound entrance; signed as exit 63 southbound
			63.02	101.42	63	US 24 west / I-70 – Kansas City, St. Louis I-70 west to I-29 north – Downtown, St. Joseph	Western end of I-435 and US 24 concurrency; I-70 exits 8A-B; signed as exit 63A northbound and 63 southbound
			63.19	101.69	63B	Raytown Road, Stadium Drive - Truman Sports Complex	Northbound exit and southbound entrance; signed as exit 63B
			65.10	104.77	65	Eastwood Trafficway
			66.10	106.38	66	Route 350 east – Raytown, Lee's Summit To 63rd Street	Southbound left exit and northbound entrance
			66.10	106.38	66A	Blue Parkway / Dr. Martin Luther King Jr. Boulevard	Northbound exit and southbound entrance
			66.08	106.35	66B	63rd Street / To Route 350 east – Raytown	Northbound exit and southbound entrance; access to Route 350 east via 63rd Street
			67.02	107.86	67	Gregory Road
			69.07	111.16	69	87th Street
			69.99	112.64	70	Route W (East Bannister Road) to US 71 north	Westbound signed Route W only
			71.02	114.30	71A	I-49 south / I-470 east / US 50 east / US 71 south – Grandview, Joplin, Lee's Summit	Northern end of US 50 concurrency; I-49 exit numbers signed 182C-B; I-470 exit 1; northern terminus of I-49; southbound becomes westbound and eastbound becomes northbound; left exit westbound
			72.01	115.89	71B	US 71 north – Kansas City	Eastbound left exit and westbound entrance; I-49 exit number signed as 182B; I-470 exit 1B westbound
			72.97	117.43	73	103rd Street	Westbound exit and eastbound entrance
			74.04	119.16	74	Holmes Road
			74.97	120.65	75A	Wornall Road
Missouri–Kansas line	Jackson–Johnson county line	Kansas City–Leawood line	75.51	121.52	75B	State Line Road to 103rd Street
Kansas	Johnson	Overland Park	77.11	124.10	77A	Roe Avenue	Diverging diamond interchange converted from existing diamond interchange
			77.39	124.55	77B	Nall Ave
			78.97	127.09	79	Metcalf Avenue
			80.08	128.88	80	Antioch Road
			81.06	130.45	81	US-69 – Pittsburg, Kansas City	Ramp to southbound US-69 also provides access to College Boulevard and 119th Street
			81.99	131.95	82	Quivira Road
		Lenexa	83.02	133.61	83	I-35 / US-50 west / US-56 / US-169 – Wichita, Kansas City, Des Moines	Western end of US-50 concurrency; I-35 exit 222; access to Lackman Road via eastbound exit
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus       Incomplete access        Tolled       Unopened

• Downtown Loop (Kansas City)

• Kansas Highway Maps: Current, Historic, KDOT