When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 54 days in advance, which can save you up to 38% on flights from Northern Ireland to Philadelphia compared to booking the week you need them. Waiting 54 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at £396. For sooner than that we have options available in the next 3 days from £485.
Due to multiple factors, expect to potentially pay more when booking in July. For low rates, February can be a great choice for travel to Philadelphia. Flights to Philadelphia from Northern Ireland in February are about £374 on average during February, but can be found for as low as £271.
At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Northern Ireland and Philadelphia for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.
Philadelphia (PHL) is the airport you will fly into if you book a flight from Northern Ireland to Philadelphia. It is only a 7.0 mi journey from Philadelphia (PHL) to Philadelphia’s city centre.