Airline was a British fly on the wall television programme produced by LWT that showcases the daily happenings of passengers, ground workers and flight crew of Britannia Airways (series 1) and later EasyJet (from series 2).

The show was broadcast between 6 March 1998 and 19 January 2007 on ITV, was often repeated on ITV2 and aired in syndication on Pick (previously known as Sky Three and Pick TV), Sky Real Lives and, as of 4 February 2019, CBS Reality. The programme's success sparked a US version of the series, following American low-cost airline Southwest Airlines.

EasyJet were first approached about the possibility of filming during mid-1998, after the first series with Britannia Airways (filmed at Manchester Airport in 1997) was discontinued. The first series with EasyJet was broadcast in January 1999, and the programme continued with them until it was discontinued. In 2003 it was ITV's most popular factual programme. The programme has been sold to many countries worldwide, including New Zealand, Australia, and Japan.

Starting with the second series in 1999, the programme follows passengers and staff of EasyJet and Reed Aviation^[1] (the handling agents) including Manager: Graham Fraser; Check-in trouble-shooter: Jane Boulton; Check-in assistant: Katrina Leeder; Supervisors: Leo Jones, Brett Holland and Leanne Cheung, Dispatcher: Kevin Reardon; Captain: James McBride, Stewardess: Janey Stock and Stelios as well as many passengers. The series were originally set in Liverpool and Luton but later incorporated Belfast, Bristol and Newcastle airports. Airline was also occasionally filmed at Gatwick and Stansted airports. Tony Robinson and Veronika Hyks replaced Charlie Higson as voiceover.

The programme also follows some passengers and staff on interesting journeys and during important moments in their lives. Wedding proposals, marriages, illnesses, business trips, reunions and once-in-a-lifetime experiences have all been filmed, both happy and sad, and one 2001 episode featured exclusively on the consequences the September 11 attacks had on EasyJet's operations at Luton. The programme also aims to educate the airline's passengers concerning its rules and regulations—some of the highlighted issues relate to missed check-in, incorrect travel documentation, and the carriage of prohibited items.

Series 1 which followed Britannia Airways has a very short scene filed at Luton Airport in the original arrivals area at the end of the final episode. Series 2 & 3 were filmed mostly in Luton's 1985 terminal at check in zones B&C (international) with occasional filming in "zone A" ((domestic) which was an extension built onto the existing terminal) as well as occasionally in the departure lounge. Building works of the new terminal building can be seen during series 3 and in final episodes of this series the check in desks have been renumbered.. "Airline at Christmas" filmed in late 1999 was to feature the new terminal as it opened with its new check in areas, shops and cafes, the new terminal is connected to the old terminal by Zone A. This episode is the only one to feature all check in areas. By series 4 all operations have moved to the new building and in a couple of episodes, building works are seen going on to refurbish the old terminal into what was to become new duty free shops as part of departures. The former "Zone A" check in desks have been removed and this space later becomes an arrivals waiting area occasionally seen during series 5-9. From series 7 the upstairs departure gates (originally 21 & 22 (domestic) have been renumbered 12 & 13. By series 10 Luton has redeveloped its buildings again, departures has now moved upstairs in the new terminal. The original departure lounge is still in use but at the end of a very long walkway. The former "zone A" link has been demolished and replaced by a new building for a bigger arrivals waiting area and the 1985 terminal is now arrivals.

  – Area not used for Passenger operation at the time

Series two introduces Liverpool airport as small with everything on one storey. Opposite the entrance are sales/ticket desks to the right are check-in desks and then security and departures are at the end of the concourse. Series two reveals the end check in desks have been removed and there is now an upstairs which provides access to the departure lounge which has also moved upstairs. The Easyjet sales desk is not seen until briefly in series 4 where staff are wearing orange uniforms. From series 5 the sales desks is where most of the filming takes place, the staff are now mainly wearing Reid Aviation uniforms and the check in desks have been replaced with blue similar to what used to be at Luton. This continued into series six where the original entrance becomes covered over and during this series all business is moved into the new terminal and the airport becomes known as "Liverpool John Lennon" The official opening of this terminal is featured in the final episode of series 6.

• Series 1: 10x30' (2001) – First shown from 31 August 2001.

• Airport (1996–2005, 2008)
• Animal Airport (2000)
• (London) Luton Airport (2005–08)
• Air Ways (Australia, 2009–2012)
• Come Fly with Me (2010–2011)
• Heathrow: Britain's Busiest Airport (2015–2022)
• EasyJet: Inside the Cockpit (2017, 2019)