Please uncheck any airports you do not want in your selection, and then press the 'Show me how to get from BRISTOL to FRANKFURT' button at the bottom of the screen.

Matches for BRISTOL as part of the airport, city, or country name

Include	Airport name	Airport code	City	Country
	Bristol	BRS	Bristol	United Kingdom
	Municipal TriCity Airport	TRI	Bristol/Johnson City/Kingsport	United States

Matches for FRANKFURT as part of the airport, city, or country name

Include	Airport name	Airport code	City	Country
	Frankfurt	FRA	Frankfurt	Germany
	Frankfurt Rhein-main Afb	FRF	Frankfurt [Rhein-Main Air Force Base]	Germany
	Hahn Airport	HHN	Frankfurt	Germany
	Frankfurt Neu Isenburg	QGV	Neu Isenburg	Germany