AirHint found the following cheapest return flights from Harrisburg (MDT) to Jacksonville (JAX) in May 2026 (see full year).
Return flights
| 25 May - 08 Jun | Allegiant Air | direct | |
| 25 May - 05 Jun | Allegiant Air | direct | |
| 25 May - 01 Jun | Allegiant Air | direct | |
| 27 May - 01 Jun | Delta | ||
| 20 May - 24 May | Delta | ||
| 24 May - 31 May | United |
Also check the deals for one-way flights from Harrisburg to Jacksonville in May.
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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.
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