Found an amazing fare from Newark to Berlin Summer 2012 for $596 US:


Mon 18-Jun-12
Newark (EWR)
Depart 5:55 pm
Terminal B to Frankfurt (FRA)
Arrive 7:20 am +1 day
Terminal 1 3,851 mi
(6,198 km)
Duration: 7hr 25mn
AC Flight: 9444
Operated by: LUFTHANSA OR LH CITYLINE

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3Economy/Coach Class , Boeing 747-400


Tue 19-Jun-12

Frankfurt (FRA)
Depart 8:55 am
Terminal 1 to Berlin (BER)
Arrive 10:05 am 267 mi
(430 km)
Duration: 1hr 10mn
AC Flight: 9502
Operated by: LUFTHANSA OR LH CITYLINE

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3Economy/Coach Class , Airbus A321


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Total distance: 4,118 mi (6,627 km)
Total duration: 8hr 35mn (10hr 10mn with connections)


Traveling to Newark
Tue 3-Jul-12


Berlin (BER)
Depart 8:30 am to Frankfurt (FRA)
Arrive 9:45 am
Terminal 1 267 mi
(430 km)
Duration: 1hr 15mn
AC Flight: 9019
Operated by: LUFTHANSA OR LH CITYLINE

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3Economy/Coach Class , Airbus A321


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Frankfurt (FRA)
Depart 11:20 am
Terminal 1 to Newark (EWR)
Arrive 2:00 pm
Terminal C 3,851 mi
(6,198 km)
Duration: 8hr 40mn
AC Flight: 2539
Operated by: UNITED AIRLINES

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3Economy/Coach Class , Boeing 777


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Total distance: 4,118 mi (6,627 km)
Total duration: 9hr 55mn (11hr 30mn with connections)