$395 Cheap Aer Lingus flights New York (JFK) to London (LHR)

Finding cheap one-way Aer Lingus flights from JFK to LHR from $395 on Expedia is easy — just filter by “Price (lowest to highest).” Alternatively, check out our affordable return fares from $592 for your next adventure.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

January is one of the cheapest months to fly to London with Aer Lingus. You could also find great deals on one-way and round-trip fares in February.

To grab cheap flights from JFK to LHR with Aer Lingus, begin your search about one month before your intended departure. You can save 17% when you book your international tickets 18 to 29 days ahead instead of booking four to five months in advance. Another useful tip? Booking on Sunday offers average savings of 17% compared to Friday (the most expensive day).**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Use our “Nonstop” filter when searching for direct Aer Lingus flights from JFK to LHR. It’s also a good way to compare other carriers servicing the same nonstop route.

Find Aer Lingus’s earliest flights from JFK to LHR by checking the “Early Morning” and “Morning” filters. Not only will you get to your destination sooner, early departures also have a 20% less chance of being canceled.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Get on an Aer Lingus flight from John F. Kennedy Intl. Airport (JFK) to London, and you’ll most likely arrive at Heathrow Airport (LHR). This is the airline’s main hub in this city.

For checked luggage, you can take 1 checked-in bag weighing up to 50 lb with dimensions not exceeding 62 inches. You can also bring 1 cabin bag in the cabin when flying standard economy from JFK to LHR with Aer Lingus. This carry-on has to weigh less than 22 lb and be no bigger than 21 inches x 15 inches x 9 inches. Going over these limits can mean additional fees, so check Aer Lingus’s baggage allowance rules before packing your suitcase.

Aer Lingus makes flying from JFK to LHR more enjoyable with a 4-star airline rating and a rewarding loyalty program. You also have the chance to earn points with Aer Lingus AerClub. Be sure to sign up to our free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future bookings.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Depending on the type of ticket you purchased, a fee is typically charged if you modify or cancel your flight more than 24 hours after it’s confirmed. To find flexible fares, select our “Changes included” and “No cancel fee” boxes when you search for flights. For additional information on modifying or canceling your reservation, go to “Trips,” select your flight and tick “Manage Booking.”