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Cheapest return flights from San Diego (SAN) to Keflavik (KEF), September

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Dates, airline, and price
Dates	Airline	Price
12 Sep 24 Sep	WestJet
01 Sep 09 Sep	Southwest Airlines
20 Sep 29 Sep	Frontier Airlines
16 Sep 28 Sep	Alaska Airlines
15 Sep 19 Sep	WestJet

deals for one-way flights from San Diego to Keflavik in September.

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Updated May 21, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

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Cheapest return flights from San Diego (SAN) to Keflavik (KEF), September

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