Cheapest return SLC–LHR flights, May

AirHint found the following cheapest return flights from Salt Lake City (SLC) to London (LHR) in May 2026 (see full year).

Return flights

05 May - 12 May jetBlue
14 May - 08 Jun Alaska Airlines
25 May - 01 Jun Frontier Airlines
26 May - 02 Jun Frontier Airlines
12 May - 15 May Frontier Airlines
13 May - 16 May Frontier Airlines
19 May - 28 May Frontier Airlines
14 May - 29 May Alaska Airlines
31 May - 15 Jun Air France
26 May - 31 May Frontier Airlines
22 May - 26 May WestJet
21 May - 01 Jun Frontier Airlines
26 May - 31 May KLM direct
21 May - 25 May Frontier Airlines
15 May - 24 May Frontier Airlines
20 May - 15 Jun Frontier Airlines
15 May - 09 Jun Frontier Airlines
29 May - 03 Jun Air France

Also check the deals for one-way flights from Salt Lake City to London 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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