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ONT to DCA: distance & flight time
Ontario (Ontario International Airport) → Washington (Ronald Reagan Washington National Airport)
2,260 mi
3,637 km · 1,964 nm
4h 54m
estimated nonstop flight time
+3h
time difference · heading east
See live ONT→DCA fares Phone-only fares on this route — call free
Flight time details
2,260 miles nonstop takes roughly 4h 54m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3-hour time gain when reading arrival times on your ticket.
The two airports
- ONT — Ontario International Airport · Ontario, 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 ONT
- CCB · Cable Airport6 mi away
- CNO · Chino Airport6 mi away
- LAX · Los Angeles International Airport47 mi away
- RAL · Riverside Municipal Airport11 mi away
Near DCA
Frequently asked questions
How far is ONT from DCA?
The flight distance from Ontario (ONT) to Washington (DCA) is 2,260 miles (3,637 km, 1,964 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ONT to DCA?
A nonstop flight takes about 4h 54m 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 Ontario and Washington?
Washington is 3 hours ahead of Ontario.
What is the cheapest way to fly from ONT to DCA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ONT–DCA that never appear on search engines, with no booking fees.