What is the cheapest month to fly from Ontario to Washington?

Based on current 6-month forward fare data, May 2026 is the cheapest month to fly from Ontario (ONT) to Washington (DCA), with fares starting from $213.

What is the lowest current fare from ONT to DCA?

The lowest currently-listed fare from Ontario (ONT) to Washington (DCA) is $213 on 2026-05-28.

Is there a direct flight from Ontario to Washington?

There is currently no non-stop service from ONT to DCA. Most travellers connect through a hub airport. See our route page for current stopover options.

Cheap flights from Ontario to Washington

Cheapest current fares: $213 in May 2026 on connecting flights.

Last updated May 25, 2026 · By Flightmaps Editorial

Cheapest month-by-month fares

Lowest available fare per calendar month from Ontario (ONT) to Washington (DCA). Refreshed daily.

Ontario (ONT) → Washington (DCA)

May 2026 $213

Frequently asked questions

What is the cheapest month to fly from Ontario to Washington?

Based on current 6-month forward fare data, May 2026 is the cheapest month to fly from Ontario (ONT) to Washington (DCA), with fares starting from $213.
What is the lowest current fare from ONT to DCA?

The lowest currently-listed fare from Ontario (ONT) to Washington (DCA) is $213 on 2026-05-28.
Is there a direct flight from Ontario to Washington?

There is currently no non-stop service from ONT to DCA. Most travellers connect through a hub airport. See our route page for current stopover options.

Related guides for this route

Sibling pages — full route detail, airport overviews, visa context, per-airline routes.