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DCA to OOM: distance & flight time
Washington (Ronald Reagan Washington National Airport) → Cooma (Cooma Snowy Mountains Airport)
9,938 mi
15,993 km · 8,636 nm
19h 57m
estimated nonstop flight time
+14h
time difference · heading west
See live DCA→OOM fares Phone-only fares on this route — call free
Flight time details
9,938 miles nonstop takes roughly 19h 57m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time gain when reading arrival times on your ticket.
The two airports
- DCA — Ronald Reagan Washington National Airport · Washington, United States
- OOM — Cooma Snowy Mountains Airport · Cooma, Australia
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 DCA
Near OOM
- CYG · Corryong Airport61 mi away
- MIM · Merimbula Airport66 mi away
- CBR · Canberra International Airport70 mi away
- MYA · Moruya Airport71 mi away
Frequently asked questions
How far is DCA from OOM?
The flight distance from Washington (DCA) to Cooma (OOM) is 9,938 miles (15,993 km, 8,636 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from DCA to OOM?
A nonstop flight takes about 19h 57m 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 Washington and Cooma?
Cooma is 14 hours ahead of Washington.
What is the cheapest way to fly from DCA to OOM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on DCA–OOM that never appear on search engines, with no booking fees.