Find cheap flights from Northern Ireland to Lisbon
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Good to know
Best time to beat the crowds (4% less expensive on average)
Most popular time to fly (5% more expensive on average)
Average price of a return ticket
(avg. price over the last 2 weeks)
Good deal for a return ticket
FAQs for booking Northern Ireland to Lisbon flights
How does KAYAK’s flight Price Forecast tool help me choose the right time to buy?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a given destination and date is likely to change within 7 days, so travellers know whether to wait or book now.