People travelling from Gatwick and Luton airport face disruption today as French transport workers go on strike.
Easyjet has cancelled 118 flights, with Ryanair, British Airways and Flybe also affected.
Passengers are being advised to check with their airline.
Nearly 60 MPs, including the leader of the Conservative backbench 1922 Committee, are pressing for a speedy decision by the next government on whether a new runway should be built at Gatwick or Heathrow Airport.
Graham Brady told the Independent on Sunday: "It is critical we address the issue of airport infrastructure as soon as possible - we've clearly put off a decision for decades now.
"It's important we make sure there is at least one new runway built in South-east England to prevent us falling behind other countries in terms of trade."
The paper reports that concern is growing in the House of Commons that the main parties have not made a commitment to backing the final option selected by the Airports Commission led by Sir Howard Davies. The commission is due to report in the summer.
The Airports Commission consultation closes today on increasing the UK's long-term air travel capacity.
The commission has been asking people for their views on the three short-listed options for a new runway in the south east of England - a second runway a Gatwick, a third runway at Heathrow, and an extension to the existing northern runway at Heathrow to operate as two separate runways.
Chaired by Howard Davies, the commission is expected to make its final recommendations following the General Election. It has already rejected the idea of an inner Thames Estuary hub airport backed by the Mayor of London, Boris Johnson.
A passenger has described the moment an easyJet plane carrying 157 passengers had to make an emergency landing - after smoke was detected in the cockpit.
We were due to leave Liverpool at 6:40am to Naples. The flight left with no problems and all was well. Then came the an acrid smell of burning. At first it seemed like nothing to worry about but as the smell grew as did the concern of some of the passengers. The captain then announced that they were apologetic for the smell of smoke and that the plane was to make an emergency landing as a precaution. The oxygen was issued in the cockpit as that's where the smoke was coming from. The crew remained extremely calm and professional. Some of the passengers started to notice that there was a mist coming from the air condition which the captain reassured us was completely normal. The flight landed safely on the ground and we were greeted by the firemen who came aboard (to our delight). Currently there is another EasyJet flight awaiting for us to board and we have been offered a free drink and small snack as a form of apology. The flight landed into Gatwick just 40 minutes after taking off at Liverpool. I commend the crew and captain for handling the situation in such a calm manner. One passenger has decided she would not like to continue with the next flight.
Two workers at Gatwick Airport have been arrested by police investigating the alleged theft of duty-free goods. The pair were seen acting suspiciously and stopped just after 6am today by officers running an operation into thefts at the West Sussex airport.
Police examined bags they were carrying and discovered sealed bottles of perfume and other duty-free items. A property in Crawley was also being searched as part of the inquiry. The pair - a 22-year-old man and a 46-year-old woman, both from Crawley - were arrested on suspicion of theft. A police spokesman said both worked for a contractor based at the airport, and not for the site's owner, Gatwick Airport Ltd.
"These arrests are part of a long-running investigation into the theft of duty-free goods from the airport. There is no suggestion that passengers have been targeted and today's arrests are not linked to previous operations aimed at catching airport workers who might be committing thefts there. We are working with Gatwick Airport Ltd and airline operators to tackle the issue of theft and to catch those responsible."
Gatwick Airport has said it is not anticipating any baggage issues this weekend.
The airport said it had "robust contingency plans" in place, with 60 extra staff on standby to support baggage handlers Swissport.
(1/4) Gatwick is operating well and passengers booked to fly through Gatwick this weekend are advised to do so as planned.
(2/4) Departing flights aren't affected as reports have inaccurately suggested. We reassure passengers that bags will be loaded on aircraft.
(3/4) We're not expecting baggage delivery issues this weekend, but robust contingency plans in place & 60 extra staff to support Swissport.
(4/4) Bags are delivered on time for 95% of flights & we continue to work with our airlines & their handling agents to meet high standards.
Airline Thomas Cook has said it is working to ensure its customers do not experience baggage delays at Gatwick Airport.
A spokesperson for Thomas Cook told ITV News that the company was disappointed that recent baggage issues - which led to delays of up to four hours last weekend - had affected "too many passengers".
Gatwick is drafting in its own staff to help with baggage handling following issues with baggage handling firm Swissport.
ITV News Consumer Editor Chris Choi reports:
"We are working to ensure our customers do not experience baggage delays at Gatwick" Thomas Cook
“At Gatwick, we want to provide a great experience and we are disappointed that recent baggage issues have affected too many passengers."
Baggage handling company Swissport has denied claims zero-hours contracts were to blame for the disruption at Gatwick Airport last weekend.
Staff shortages at the company forced hundreds of passengers to go home without their luggage and left others waiting for up to five hours to reclaim their bags at the airport on July 27.
The firm told ITV News' Chris Choi the "suggestion that issues may have been caused by zero hour contracts is untrue".
Despite warnings that passengers could face yet more problems this weekend, Swissport said all services this morning were meeting targets.
"Baggage services to client airlines to 7am this morning was good and within its targets. There were no appreciable delays," the company said.