Flights from Luton to Fanning Field lean towards being more expensive in December. Prices are generally better when you fly from Luton to Fanning Field in June, with the cheapest ticket starting at £548.
At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Luton and Idaho Falls for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.
Expected rainfall in Luton is less than in Idaho Falls. You can expect this to be the case over the next 17 days.
You can imagine temperatures to be in the 33 °C range in July. The weather in Idaho Falls is generally hotter than Luton's. As flight availability is subject to become more limited as peak season approaches it is ideal to book in a timely manner.