AirHint found the following cheapest return flights from Newcastle (NCL) to Zakynthos (ZTH) in August 2025 (see full year).

Return flights

05 Aug - 19 Aug	TUI	direct
01 Aug - 08 Aug	TUI	direct
01 Aug - 15 Aug	TUI	direct
05 Aug - 12 Aug	TUI	direct
29 Aug - 09 Sep	Ryanair
15 Aug - 22 Aug	TUI	direct
08 Aug - 15 Aug	TUI	direct
01 Aug - 06 Aug	TUI	direct
01 Aug - 09 Aug	TUI	direct
25 Aug - 09 Sep	Jet2	direct
01 Aug - 03 Aug	TUI	direct
27 Aug - 03 Sep	Jet2
12 Aug - 19 Aug	TUI	direct
31 Aug - 05 Sep	TUI	direct
30 Aug - 07 Sep	Jet2	direct
30 Aug - 05 Sep	Jet2	direct
29 Aug - 09 Sep	TUI	direct
29 Aug - 20 Sep	Ryanair
30 Aug - 08 Sep	Ryanair
30 Aug - 08 Sep	Jet2	direct

Also check the deals for one-way flights from Newcastle to Zakynthos in August.

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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Cheapest return flights from Newcastle to Zakynthos in August from 160€

Return flights