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Ireland to United Kingdom flight

Flying From Ireland to United Kingdom: What You Need to Know

Cheapest one-way flight price$19
Cheapest round-trip ticket price$39
Off-season for travelOctober
Peak season for travelJanuary
Popular airlineRyanair
Cheapest monthOctober

Compare multiple airlines at once to find the best flight deals from Ireland to United Kingdom.

Airlines Flying From Ireland to United Kingdom
Ryanair logo Ryanair
Aer Lingus logo Aer Lingus
British Airways logo British Airways
SWISS logo SWISS

Search Flights From Ireland to United Kingdom

Easily compare flights from Ireland to United Kingdom and find the cheapest tickets available!

Looking for affordable flights from Ireland to United Kingdom? Check out these great prices for the next 90 days, starting at just $19 for a one-way ticket and $39 for a round-trip.

Displayed flight fares from Ireland to United Kingdom are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

FAQs: Flights From Ireland to United Kingdom

  • When is it the cheapest time to fly from Ireland to United Kingdom?

    According to our flights calendar over the next 90 days, it seems the cheapest date is on 2026-08-08 for one-way flights.
  • The cheapest round-trip flight from Ireland to United Kingdom is on the route from Dublin to London, with prices starting at $39 for a round trip between 2026-07-21 and 2026-07-22.
  • Based on our flight data, the average flight time from Ireland to United Kingdom is approximately 1 hour 29 minutes based on our most popular routes from Dublin to London. The time may also vary depending on your destination.
  • The cheapest airline flying to United Kingdom from Ireland is Ryanair serving the route from Dublin to London.
  • Ryanair are airlines that fly frequently from Ireland to United Kingdom. The overall price will vary depending on your destination and travel dates. Budget airlines generally offer lower prices to Australia, but they may have limited baggage allowance, reduced onboard services, and longer commuting times to secondary airports.