Need help booking?
Unpublished phone-only deals available
IRB to CSM: distance & flight time
Iraan (Iraan Municipal Airport) → Clinton (Clinton Sherman Airport)
344 mi
553 km · 299 nm
1h 22m
estimated nonstop flight time
Same time
time difference · heading northeast
See live IRB→CSM fares Phone-only fares on this route — call free
Flight time details
344 miles nonstop takes roughly 1h 22m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- IRB — Iraan Municipal Airport · Iraan, United States
- CSM — Clinton Sherman Airport · Clinton, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near IRB
- OZA · Ozona Municipal Airport43 mi away
- FST · Fort Stockton Pecos County Airport61 mi away
- MAF · Midland International Airport74 mi away
- SJT · San Angelo Regional Mathis Field88 mi away
Near CSM
- HBR · Hobart Regional Airport26 mi away
- LTS · Altus Air Force Base47 mi away
- FSI · Henry Post Army Air Field (Fort Sill)66 mi away
- LAW · Lawton Fort Sill Regional Airport69 mi away
Frequently asked questions
How far is IRB from CSM?
The flight distance from Iraan (IRB) to Clinton (CSM) is 344 miles (553 km, 299 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IRB to CSM?
A nonstop flight takes about 1h 22m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the cheapest way to fly from IRB to CSM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IRB–CSM that never appear on search engines, with no booking fees.