Flights from Oklahoma City to New Hampshire lean towards being more expensive in March. Prices are generally better when you fly from Oklahoma City to New Hampshire in August, with the cheapest ticket starting at $162.
When flying from Oklahoma City to New Hampshire, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
To save up to 77% on this flight, we recommend booking at least 40 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Oklahoma City to New Hampshire from $442 1-2 weeks out and tickets from $656 for flights departing within the next 72 hours.