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

Based on current 6-month forward fare data, August 2026 is the cheapest month to fly from Baltimore (BWI) to Ontario (ONT), with fares starting from $190.

What is the lowest current fare from BWI to ONT?

The lowest currently-listed fare from Baltimore (BWI) to Ontario (ONT) is $190 on 2026-08-13.

How long is the flight from Baltimore to Ontario?

Direct flights from BWI to ONT cover approximately 3,666 km (2,278 miles), with an estimated flight time of 4h 19m. Operating airlines: WN.

Cheap flights from Baltimore to Ontario

Cheapest current fares: $190 in August 2026, 3,666 km direct flight in ~4h 19m.

Last updated August 4, 2026 · By Flightmaps Editorial

Cheapest month-by-month fares

Lowest available fare per calendar month from Baltimore (BWI) to Ontario (ONT). Refreshed daily.

Baltimore (BWI) → Ontario (ONT)

August 2026 $190

Frequently asked questions

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

Based on current 6-month forward fare data, August 2026 is the cheapest month to fly from Baltimore (BWI) to Ontario (ONT), with fares starting from $190.
What is the lowest current fare from BWI to ONT?

The lowest currently-listed fare from Baltimore (BWI) to Ontario (ONT) is $190 on 2026-08-13.
How long is the flight from Baltimore to Ontario?

Direct flights from BWI to ONT cover approximately 3,666 km (2,278 miles), with an estimated flight time of 4h 19m. Operating airlines: WN.

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