Cheap flights from Shannon to Frankfurt

May is the month when fares on this route tend to drop, so if your dates are open, start there. Dated fares also appear for September, October, November, December, January and July — that covers the autumn break, the Christmas run and the summer school holidays, when seats fill fastest. Midweek departures tend to be calmer than Friday or Sunday flights. Book well ahead for summer and Christmas, and you can leave it later in the quieter weeks of May, when there is less pressure on seats.

Three carriers fly between Shannon and Frankfurt: Aer Lingus, Eurowings Discover and United Airlines. Aer Lingus is the Irish airline on the route, Eurowings Discover is a leisure-focused carrier, and United Airlines is a US airline that also works this short hop. Fares differ less by brand than by what is bundled, so compare the same fare type across all three: a hand-baggage-only ticket looks cheap until you add a checked bag and a seat. If Frankfurt is a stop on a longer journey, one ticket protects you when a delay hits; two separate bookings do not.

Frankfurt International sits close to the city and has its own railway station, so the train into the centre is quick and simple. Hahn Airport is a different proposition: it lies well outside Frankfurt, and most travellers reach the city by coach or car, which adds a long transfer to the day. Check your booking before you fly — a ticket to Hahn is not a ticket to Frankfurt International, and the two are not interchangeable. If you are heading onward by rail, plan the leg from Hahn in advance rather than at the airport. Both airports serve the Frankfurt area, but only one puts you near the centre.

Currency

EUR (€)

Power sockets

Type C, F · 230 V

Language

German

Emergency number

112, 110

Driving side

right

Calling code

+49

Internet domain

.de

EU / Schengen

EU member, Schengen area

Population of Frankfurt

761 k (2025)

Time zone

UTC+01 (Europe/Berlin)

Country facts: Wikidata

• Confirm whether your ticket lands at Frankfurt International or Hahn Airport, because the two are far apart.
• Compare what Aer Lingus, Eurowings Discover and United Airlines include in the fare before you pick on price alone.
• If you are flying on to another city, keep the whole trip on one ticket so a delay is covered.
• Carry a passport or national identity card, since airlines ask for photo ID at the gate.
• Fly in May if your dates are flexible, and book early for the summer and Christmas weeks.
• Shannon has one airport, so there is no second departure point to check on this side.