May is by far the best month, wherein you can get cheapest flights for Barcelona to London. Meanwhile, December is perceived as the expensive month due to the varying factors. That’s why it’s highly advised to make advanced online flight booking to save huge amounts of money.
October- During this month the footfall is less so, the flight is gradually inexpensive.
October - is the cheapest month to book round trip flights.
Disclaimer - All the mentioned fares were found within last 48 hrs. The displayed fares are based on historical data and are subject to change. The fares cannot be guaranteed at the time of booking.
ABE
06:00
Allentown Lehigh Valley International Airport
Sat , 06 Sep 2025
BNA
08:55
Nashville Nashville International Airport
Sat, 06 Sep 2025
ABE
06:00
Allentown Lehigh Valley International Airport
Mon , 29 Sep 2025
BGR
13:08
Bangor Bangor International Airport
Mon, 29 Sep 2025
ABE
19:00
Allentown Lehigh Valley International Airport
Tue , 16 Sep 2025
ATL
22:57
Atlanta Hartsfield Jackson Atlanta International Airport
Tue, 16 Sep 2025
ABE
19:59
Allentown Lehigh Valley International Airport
Sun , 14 Sep 2025
ATL
23:54
Atlanta Hartsfield Jackson Atlanta International Airport
Sun, 14 Sep 2025
ABE
06:00
Allentown Lehigh Valley International Airport
Tue , 16 Sep 2025
ATL
09:48
Atlanta Hartsfield Jackson Atlanta International Airport
Tue, 16 Sep 2025
ABE
13:50
Allentown Lehigh Valley International Airport
Thu , 11 Sep 2025
ATW
23:37
Appleton Appleton International Airport
Thu, 11 Sep 2025
ABE
13:56
Allentown Lehigh Valley International Airport
Mon , 01 Sep 2025
BJX
09:37
Silao Guanajuato International Airport
Tue, 02 Sep 2025
ABE
20:07
Allentown Lehigh Valley International Airport
Mon , 01 Sep 2025
BJX
09:37
Silao Guanajuato International Airport
Tue, 02 Sep 2025
ABE
13:50
Allentown Lehigh Valley International Airport
Thu , 11 Sep 2025
ATW
21:28
Appleton Appleton International Airport
Thu, 11 Sep 2025