It is important that you keep up-to-date regarding travel at present. Below is from gov.uk and was current from yesterday. This could change again today. I get email alerts from them and will post to keep everyone notified.
Turkish authorities have confirmed that any foreign nationals who overstay their visa, due to COVID-19, will not face any fines or penalties, provided they depart Turkey within 1 month of flights resuming to their country of citizenship. British nationals in Turkey who have overstayed their visa should make arrangements to leave Turkey by midnight Turkish time on 11 July.
If you have not left by then, you will be subject to penalties as follows:
Those departing from 12 July to 11 October will incur an administrative fine;
Those departing from 12 October onwards will be banned from Turkey for a period of time determined by the length of overstay.
The information on this page covers the most common types of travel and reflects the UK government’s understanding of the rules currently in place. Unless otherwise stated, this information is for travellers using a full ‘British Citizen’ passport.
The authorities in the country or territory you’re travelling to are responsible for setting and enforcing the rules for entry. If you’re unclear about any aspect of the entry requirements, or you need further reassurance, you’ll need to contact the embassy, high commission or consulate of the country or territory you’re travelling to.
You should also consider checking with your transport provider or Travel Company to make sure your passport and other travel documents meet their requirements.
From the department of Foreign Affairs Ireland
Important Travel Advice Update
General COVID-19 Travel Advisory in Operation:
Avoid non-essential travel until further notice:
The Irish Authorities advise against all non-essential travel overseas until further notice. This includes Great Britain but does not apply to Northern Ireland. It also includes all travel by cruise ship.
If you are currently travelling outside of Ireland:
Flight restrictions and route cancellations are happening on a daily basis worldwide and there is no guarantee that air routes will continue to operate. For this reason, where commercial flights are still an option, we recommend that people who wish to do so make arrangements to return to Ireland as soon as possible.
We are working with airlines to show maximum flexibility to those passengers who need to change their existing flight arrangements. Where commercial flights are no longer available, we are working side-by-side with our international partners to identify alternative options where possible.
It may not be feasible or possible for everyone who wants to travel back to Ireland to do so in the short term. We ask Irish citizens remaining abroad to make decisions that safeguard their health and well-being and that they follow local public health and safety requirements. We ask that they remain in close contact with family, friends and their local Irish Embassy or Consulate.
We know that this is a stressful situation for citizens and our embassy network is working around the clock to provide people with all the information and assistance that we can, bearing in mind the situation is unfolding across multiple countries and is not one under our control.
What to do on entering Ireland from abroad:
The Irish Authorities require anyone coming into Ireland, apart from Northern Ireland, to self-isolate for 14 days. Passengers arriving to Ireland from overseas are obliged to complete a mandatory Public Health Passenger Locator Form and to submit it to the relevant authority at their port of entry. This includes Irish residents. Exemptions are in place for providers of essential supply chain services such as hauliers, pilots and maritime staff. Check the Irish Government Advice Page for full information on these requirements.
Where to go for more information:
We continue to make updates to our online travel advice for over 200 countries and recommend that you download our TravelWise App and follow us on Twitter. If abroad you should register with your local Irish Embassy or Consulate and regularly check their website and Twitter accounts for details of any local public health measures and travel restrictions.
Another important factor is to check that you are insured while travelling. At present the UK Government and Ireland are advising against all travel, so you are taking a chance if you travel with no health insurance.