Global airlines have suspended or reduced flights in the Middle East as the conflict between Israel and Iran rages after the United States bombed three Iranian nuclear enrichment sites at the weekend.

The US carried out strikes against Iranian nuclear sites overnight Saturday to Sunday after over a week of deadly missile exchanges between Israel and Iran.

Here is the latest airline situation:

European airlines

British Airways cancelled flights between London's Heathrow Airport and Dubai and Doha on Sunday following the US strikes on Iran.

The airline said Monday it was scheduled to operate those routes as normal, though there were some cancellations ahead of a clutch of evening flights.

Air France halted flights to Saudi Arabia and the United Arab Emirates until at least Tuesday inclusive, the airline said.

It also extended the suspension of the Paris-Tel Aviv route until 14 July.

Flights of Air France's low-cost carrier Transavia from Paris to Beirut have been suspended until 30 June while the Tel Aviv route is closed until 7 September.

Germany's Lufthansa group, whose other airlines include Swiss, Austrian and ITA, has suspended flights to the Middle East until 30 June.

The Amman and Erbil, Iraq, routes were also suspended until 11 July.

The group will not fly to Tel Aviv and Tehran will until 31 July and is also avoiding the air space of countries involved in the conflict.

Greece's Aegean Airlines has stopped Tel Aviv flights until 12 July. Its Amman, Beirut and Erbil routes are closed until 28 June.

Turkish airline Pegasus has scrapped flights to Iraq, Jordan and Lebanon until 30 June, and Iran until 30 July.

No Turkish Airlines flights to Baghdad, Damascus and Tehran are available before 1 July.

Finnair meanwhile confirmed it was suspending flights to Doha. The carrier is also staying out of the airspace of Iran, Iraq, Syria and Israel.

US and Canadian airlines

United Airlines has warned passengers that flights to and from Dubai scheduled between 18 June and 3 July may be affected and is offering no-fee ticket changes under certain conditions due to Middle East unrest.

The US airline has implemented the same flexibility for Tel Aviv flights between 13 June and 1 August, allowing customers to rebook for other major European cities.

Air Canada has temporarily suspended its daily non-stop service from Toronto to Dubai starting 18 June and warned the suspension could be extended. 

Travel via a European stopover on a partner airline remains possible, according to its website.

American Airlines is allowing customers to change their bookings to Doha without fees for travel originally scheduled between 19 June and 20 July.

Asian airlines

Singapore Airlines has cancelled eight flights to Dubai — two per day from Sunday through Wednesday.