The contributors of Flight-Report published 4 reviews on 2 airlines on the route Newark - Newark Liberty (EWR) → Frankfurt - Frankfurt am Main (FRA). The airline with the best average rating is Lufthansa with 7.3/10. The average flight time is 6 hours and 59 minutes.
Airlines on this route are:
Frequent travelers recommend "United Polaris Lounge" at EWR for services and entertainment/wifi.
The airport of Newark (EWR) is rated as moderately efficient (security/immigration/police checks); make sure to arrive with sufficient time.
Newark has an another airport to go to Frankfurt : Newark - John F Kennedy (JFK)