Cheap flights from Bilbao to London from £18

In general, November is the cheapest month to fly from Bilbao to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £67. The month of March is another great option to travel to London Heathrow Airport, with average flight prices from Bilbao averaging around £81.

On average, the least expensive day to fly to London Heathrow Airport from Bilbao is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as £84. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Monday is £213.

Fly from Bilbao to London Heathrow for the best Bilbao - London Heathrow flight prices

You are more likely to see cheaper flights to London Heathrow Airport from Bilbao when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £125 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Bilbao for as low as £80 on momondo.

There is only 1 cabin class available to choose from on Bilbao to London Heathrow Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Historically, on average around 7% of flights between Bilbao and London have experienced a delay on any given week. The average delay length over the past 12 months has been 92 minutes.

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

Monday is statistically the day of the week that experiences the fewest delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

According to our data, Vueling have had the fewest delays on this route over the last 12 months, with about 7% of their flights experiencing any sort of delay.

The number of flights available between Bilbao and London Heathrow Airport is 4 per day as of October 2026. The most frequent departure time is 13:00, with 100% of daily flights leaving in the afternoon.

The number of flights available between Bilbao and London Heathrow Airport is 33 per week as of October 2026. The most frequent departure day is Mon, with 18% of weekly flights leaving on this day.