Most delayed flights from CMH: every route ranked

31 regularly flown nonstop routes from John Glenn Columbus International Airport, worst on-time record first (Aug 2025 – Jul 2026). Routes with fewer than 360 flights in the period are listed separately.

#	Destination	On time	Cancelled	Avg delay	Airlines	Flights
1	CMH → DCA Washington, VA	70%	3.0%	22 min	4	2,051
2	CMH → SEA Seattle, WA	72%	1.1%	15 min	5	464
3	CMH → ORD Chicago, IL	76%	2.7%	23 min	6	4,930
4	CMH → MCO Orlando, FL	78%	1.5%	17 min	4	2,148
5	CMH → FLL Fort Lauderdale, FL	78%	3.0%	16 min	3	764
6	CMH → LAX Los Angeles, CA	78%	1.1%	21 min	5	464
7	CMH → IAH Houston, TX	78%	1.1%	20 min	2	522
8	CMH → DAL Dallas, TX	80%	1.5%	11 min	1	535
9	CMH → LAS Las Vegas, NV	80%	0.4%	13 min	2	898
10	CMH → LGA New York, NY	80%	4.2%	16 min	3	3,048
11	CMH → DFW Dallas/Fort Worth, TX	80%	2.3%	22 min	4	1,728
12	CMH → DEN Denver, CO	80%	0.6%	15 min	3	1,769
13	CMH → RSW Fort Myers, FL	80%	1.5%	14 min	1	652
14	CMH → MDW Chicago, IL	81%	1.6%	12 min	1	1,239
15	CMH → PHL Philadelphia, PA	81%	3.1%	17 min	3	1,432
16	CMH → PHX Phoenix, AZ	82%	1.2%	19 min	2	1,148
17	CMH → EWR Newark, NJ	83%	4.0%	12 min	2	2,063
18	CMH → BOS Boston, MA	83%	2.1%	11 min	3	2,005
19	CMH → AUS Austin, TX	83%	0.2%	11 min	5	414
20	CMH → MIA Miami, FL	84%	0.3%	12 min	4	1,154
21	CMH → BNA Nashville, TN	84%	0.7%	9 min	1	1,040
22	CMH → TPA Tampa, FL	84%	1.1%	9 min	1	901
23	CMH → JFK New York, NY	84%	3.9%	11 min	1	1,601
24	CMH → CLT Charlotte, NC	84%	1.9%	14 min	4	2,046
25	CMH → STL St. Louis, MO	85%	0.7%	11 min	1	673
26	CMH → IAD Washington, VA	85%	0.9%	12 min	2	979
27	CMH → ATL Atlanta, GA	85%	1.6%	13 min	3	3,155
28	CMH → DTW Detroit, MI	86%	0.8%	13 min	3	1,462
29	CMH → MSP Minneapolis, MN	86%	0.9%	15 min	2	850
30	CMH → BWI Baltimore, MD	88%	1.6%	9 min	1	1,048
31	CMH → SLC Salt Lake City, UT	90%	0.6%	7 min	1	363

Less frequent routes

Too few flights for a reliable ranking.

Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.