To save up to 40% on this flight, we recommend booking at least 57 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Chicago O'Hare Intl Airport to Napa Valley from $354 1-2 weeks out and tickets from $517 for flights departing within the next 72 hours.
Flights from Chicago O'Hare Intl Airport to Napa Valley lean towards being more expensive in March. Prices are generally better when you fly from Chicago O'Hare Intl Airport to Napa Valley in September, with the cheapest ticket starting at $119.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Chicago O'Hare Intl Airport to Napa Valley as you normally would.
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