Flight Routes from Ontario to Washington DC

Compare cheap outbound and return flights from Ontario (ONT) to Washington DC (IAD) and find the best offer from numerous airlines and travel agencies.

Trip type
Cheapest roundtrip flight
from€562
Flight distance
3,604 km
Time difference

Flight schedule from Ontario (ONT) to Washington DC (IAD)

Select a travel date in the flight schedule for the route from Ontario (ONT) to Washington DC (IAD) and compare affordable flight deals.

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Matching outbound flightsONT–IAD · 1 of 1
fromto
dep.arr.
durationstopovers
  1. 12/27/26 – 1/2/27
  2. January 3 – 9, 2027
  3. January 10 – 16, 2027
    No flights could be found for the active filters.
    1. ONTIAD
      1 stopover
      1. United Airlines

      Important flight information

      Discover more flights around Ontario and Washington DC

      Departure airport Airport Ontario-CA (ONT)
      Arrival airport Airport Washington DC - Dulles International Airport, DC (IAD)
      Destination country Flights to United States
      Departure airport - Destination country Ontario-CA - United States
      Departure airport - City-Code Ontario-CA - Washington-DC
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