Need help booking?
Unpublished phone-only deals available
CSM to DCA: distance & flight time
Clinton (Clinton Sherman Airport) → Washington (Ronald Reagan Washington National Airport)
1,242 mi
1,999 km · 1,079 nm
3h 10m
estimated nonstop flight time
+1h
time difference · heading east
See live CSM→DCA fares Phone-only fares on this route — call free
Flight time details
1,242 miles nonstop takes roughly 3h 10m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time gain when reading arrival times on your ticket.
The two airports
- CSM — Clinton Sherman Airport · Clinton, United States
- DCA — Ronald Reagan Washington National Airport · Washington, 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 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
Near DCA
Frequently asked questions
How far is CSM from DCA?
The flight distance from Clinton (CSM) to Washington (DCA) is 1,242 miles (1,999 km, 1,079 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CSM to DCA?
A nonstop flight takes about 3h 10m 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 time difference between Clinton and Washington?
Washington is 1 hour ahead of Clinton.
What is the cheapest way to fly from CSM to DCA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CSM–DCA that never appear on search engines, with no booking fees.