← Washington to Ontario: all datesSee all →
−25%Round trip
Washington to Ontario 🇺🇸
$222$295
- Departs
- Thu, Nov 19
- Return
- Sun, Nov 22
- Stops
- 1 stop
- Airline
- Frontier Airlines
- Duration
- 6h 59m
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Cheapest round-trip fare by departure day Cheap Average Pricey
October 2026
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Work-hours calculator
This flight to Ontario costs you 14h 48m of work.
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Prices come from fares travellers found in the last few days and can change at any time. Last updated Fri, 23 Oct 2026 06:59:53 GMT.
