Flight Routes from Washington DC to Ontario

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

Trip type
Cheapest roundtrip flight
from€451
Flight distance
3,641 km
Time difference

Cheap flight offers from Washington DC National to Ontario

sorted by price and recency
  1. –
    Frontier Airlines
    –
    DCA–ONT
    1 stopover
    Frontier Airlines
    –
    ONT–DCA
    1 stopover
    €978
  2. –
    Alaska Airlines
    –
    DCA–ONT
    1 stopover
    Alaska Airlines
    –
    ONT–DCA
    1 stopover
    €660
  3. –
    American Airlines
    –
    DCA–ONT
    1 stopover
    American Airlines
    –
    ONT–DCA
    1 stopover
    €566
  4. –
    United Airlines
    –
    DCA–ONT
    1 stopover
    United Airlines
    –
    ONT–DCA
    1 stopover
    €471
  5. –
    Frontier Airlines
    –
    DCA–ONT
    1 stopover
    United Airlines
    –
    ONT–DCA
    1 stopover
    €451
  6. –
    American Airlines
    –
    DCA–ONT
    1 stopover
    American Airlines
    –
    ONT–DCA
    1 stopover
    €3,006

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

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

offers
Active filtersnone
Matching outbound flightsDCA–ONT · 1 of 1
fromto
dep.arr.
durationstopovers
  1. November 8 – 14, 2026
  2. November 15 – 21, 2026
  3. November 22 – 28, 2026
    No flights could be found for the active filters.
    1. DCAONT
      nonstop
      1. Southwest Airlines

      Important flight information

      Discover more flights around Washington DC and Ontario

      Departure airport Airport Washington DC - Ronald Reagan National Airport, VA (DCA)
      Arrival airport Airport Ontario-CA (ONT)
      Destination country Flights to United States
      City-Code - Arrival airport Washington-DC - Ontario-CA
      Departure airport - Destination country Washington DC - Ronald Reagan National Airport, VA - United States