Airports across the UK including Manchester, Birmingham and all those in London were hit by a system issue at air traffic control on Tuesday, which continued into Wednesday.We would like to hear from people travelling about how they have been affected by disruption. What has the experience been like? Have you had to change or cancel your travel plans?Share your experienceYou can share your response using this form.Your responses, which can be anonymous, are secure as the form is encrypted and only the Guardian has access to your contributions. We will only use the data you provide us for the purpose of the feature and we will delete any personal data when we no longer require it for this purpose. For alternative ways to get in touch securely please see our tips guide.NameWhere do you live?Tell us a bit about yourself (e.g. age, background, what you do) OptionalHave you been affected by the disruption to flights? Share your experience herePlease include as much detail as possible. Have you had to change or cancel your travel plans?Please include as much detail as possible. If you are happy to, please upload a photo of yourself here OptionalPlease note, the maximum file size is 5.7 MB.Choose filePhone number OptionalYour contact details are helpful so we can contact you for more information. They will only be seen by the Guardian.Email address Your contact details are helpful so we can contact you for more information. They will only be seen by the Guardian.You can add more information here OptionalIf you include other people's names please ask them first.By submitting your response, you are agreeing to share your details with us for this feature.If you’re having trouble using the form click here. Read terms of service here and privacy policy here.