Cheap flights from Salt Lake City to London from $409

The cheapest month to fly to London from Salt Lake City is in November. Flight prices, which tend to average around $101, are often lower during this time because this is during the off-season. The month of August is another great option to travel to London, with average flight prices from Salt Lake City averaging around $131.

The cheapest day to depart from Salt Lake City to London is on a Thursday. Travelers who choose to depart for London on a Thursday will often find tickets for as low as $885. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $1,293. These prices are subject to change though, so be sure to set up a Price Alert for flights to London.

Fly from Salt Lake City to London Heathrow for the best Salt Lake City - London flight prices

You are more likely to see cheaper flights to London from Salt Lake City when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around $1,082 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Salt Lake City for as low as $643 on momondo.

You could potentially save up to 29% on your flight if you consider stops on a Salt Lake City to London flight.

JetBlue, KLM, and Delta are the most popular carriers operating from Salt Lake City to London

Delta, JetBlue and British Airways are the top three most popular airlines that fly to London from Salt Lake City according to our data. Delta is the first choice among our users, with 49% of people opting to fly with this airline when traveling to London. Keep in mind that there are 9 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

Boston (BOS) was the most common stop: 31% of momondo users choosing 1-stop flights on this route connected there.

Flights via Boston (BOS) offer the lowest average round-trip price of $131.

Flights connecting via Denver (DEN) have the shortest average one-way travel time: 11h 14m.

Denver (DEN) has the shortest average layover time for this route: 1h 13m.

The number of flights available between Salt Lake City and London is 2 per day as of May 2026. The most frequent departure time is 5:00PM, with 100% of daily flights leaving in the afternoon.

The number of flights available between Salt Lake City and London is 18 per week as of May 2026. The most frequent departure day is Mon, with 28% of weekly flights leaving on this day.