A321
Flight Attendant Current; Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument; Flight Crew Multiengine
Situational Awareness
Aircraft Equipment Problem Less Severe; Flight Deck / Cabin / Aircraft Event Illness / Injury; Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor
Air Traffic Control Provided Assistance; Flight Crew Landed in Emergency Condition; Flight Crew Requested ATC Assistance / Clarification; Flight Crew Returned To Departure Airport; General Flight Cancelled / Delayed
Aircraft
On climb out after 5 min. for approximately 15 min. FA (Flight Attendants) 3 and 4 reported smelling sweet glue like odor that went away in about 15 min. About 35 min. into flight FA 3 reported a headache and FA 4 reported headache and nausea. FA 2 reported the smell was faint but did smell it but felt OK. FA 1 and flight deck did not smell odor. The odor was noted from Row 10 to aft of aircraft. The FA 4 reported feeling worse at 35 min. into flight so we elected to return to ZZZ. 1 passenger in 13A reported slight irritation in nose and slight headache. On return to ZZZ as a [prioritized] aircraft on descent through 10;000 ft. flight deck and cabin noticed a distinct odor like Elmer's Glue. Uneventful landing with flight deck on O2 and cabin use of 4 portable O2 bottles. FA 4 went to hospital remaining crew felt fine and continued on new aircraft to ZZZ1 as rescheduled.The probable cause was possible oil leak but no indications in flight deck.Dependent on maintenance findings.
A321 Captain reported a cabin fumes event during initial climb resulting in a return to the departure airport.