Cheapest return flights from Ontario (ONT) to Keflavik (KEF), May

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
09 May 26 May Alaska Airlines
23 May 24 May Alaska Airlines
17 May 18 May Alaska Airlines
23 May 30 May Alaska Airlines
06 May 13 May Alaska Airlines
08 May 15 May Alaska Airlines
01 May 08 May Alaska Airlines
02 May 09 May British Airways
09 May 16 May British Airways
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deals for one-way flights from Ontario to Keflavik in May.

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Updated Aug 25, 2026.

About these fares

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