Cheapest return flights from Lisbon to Keflavik in July from $253

Best time to book flights for Lisbon (LIS) to Keflavik (KEF) flights at AirHint

AirHint found the following cheapest return flights from Lisbon (LIS) to Keflavik (KEF) in July 2025 (see full year).

Return flights

21 Jul - 28 Jul Fly Play direct
21 Jul - 25 Jul Fly Play direct
25 Jul - 28 Jul Fly Play direct
25 Jul - 01 Aug Fly Play direct
28 Jul - 04 Aug Fly Play direct
14 Jul - 18 Jul Fly Play direct
28 Jul - 11 Aug Fly Play direct
21 Jul - 29 Jul Transavia France
28 Jul - 08 Aug Fly Play direct
16 Jul - 21 Jul Transavia France
20 Jul - 25 Jul Transavia France
20 Jul - 28 Jul Ryanair
20 Jul - 01 Aug Ryanair
21 Jul - 30 Jul Transavia France
25 Jul - 03 Aug Fly Play
21 Jul - 27 Jul Transavia France
28 Jul - 06 Aug Ryanair
24 Jul - 03 Aug Icelandair direct
28 Jul - 05 Aug Ryanair
29 Jul - 11 Aug Ryanair

Also check the deals for one-way flights from Lisbon to Keflavik in July.

Skyscanner

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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