EasyJet flight U2-426 made an emergency landing in Birmingham, England, on February 25th.
The Airbus A320-200 plane heading from Edinburgh, Scotland, to Bristol, England, was diverted after the crew noticed a burning electrical odor on board.
The plane landed safely. All passengers and crew members remained safe.
TAROM flight RO-275 made an emergency landing at Henri Coanda International Airport, Romania, on January 28th.
The plane took off for Thessaloniki, Greece, but had to turn back after the crew noticed an odor of oil on board.
The plane landed safely. All passengers and crew members remained unharmed.
Lufthansa flight LH-2135 made an emergency landing in Munich, Germany, on January 21st.
The Airbus A320-200 plane flying from Muenster, Germany, was on final approach to Munich when the crew reported a strong acid odor in the cockpit.
The plane continued for a safe landing. All passengers and crew members remained safe.
Austrian Airlines flight OS-125 had to return and make an emergency landing in Vienna, Austria, on November 18th.
The Airbus A321-200 plane took off for Frankfurt, Germany, but had to turn back after a strong odor and smoke was noticed on-board.
The plane landed safely. The crew were taken to a hospital for precautionary examination.
Jetstar Airways flight JQ-772 had to return and make an emergency landing in Melbourne, Australia, on October 20th.
The Airbus A320-200 plane took off for Adelaide, Australia, but had to turn back after two flight attendants reported feeling unwell due to an odor in the cabin.
The plane landed safely. Both flight attendants were taken to a hospital.
Lufthansa flight LH-278 had to return for an emergency landing in Frankfurt, Germany, on October 12th.
The Airbus A319-100 plane took off for Milan Linate Airport, Italy, but had to turn back due to an unusual odor on-board.
The plane landed safely. All one hundred and thirteen passengers and five crew members remained unharmed.
Delta Airlines flight DL-2848 had to divert and make an emergency landing in Indianapolis, Indiana, on October 1st.
The Airbus A319-100 plane heading from Detroit, Michigan, to Saint Louis, Missouri, was diverted after an odor was noticed in the cockpit.
The plane landed safely. All passengers and crew members remained unharmed.
United Airlines flight UA-1640 made an emergency landing in Denver, Colorado, on September 18th.
The Boeing 757-200 plane heading from Los Angeles, California, to Newark, New Jersey, was diverted after an odor was noticed on board.
The plane landed safely. All passengers and crew members remained unharmed.
Hawaiian Airlines flight HA-23 made an emergency landing in Kahului, Hawaii, on August 31st.
The Boeing 767-300 plane was flying from Oakland, California, when the several passengers complained of breathing problems due to an unusual odor on board.
The plane continued for a safe landing.
Twelve passengers and three crew members were checked by medical teams at the airport.
It is believed that the odor was caused by a pepper spray.
American Airlines flight AA-95 had to divert and make an emergency landing at Shannon Airport, Ireland, on August 20th.
The Boeing 767-300 plane heading from Madrid, Spain, to John F. Kennedy International Airport, New York, was diverted after an odor was noticed in the cabin.
The plane landed safely. All one hundred and seventy people aboard remained unharmed.
Frontier Airlines flight F9-1674 made an emergency landing at Raleigh–Durham International Airport, North Carolina, on August 15th.
The Airbus A321-200 plane heading from Orlando, Florida, to Philadelphia, Pennsylvania, was diverted due to an unknown odor in the cabin.
The plane landed safely. Seven passengers and a crew member were treated by the medical teams at the airport. Two passengers and a flight attendant were later taken to hospital.
Alaska Airlines flight AS-1390 made an emergency landing in Los Angeles, California, on August 12th.
The Airbus A320-200 plane heading from San Francisco, California, to New Orleans, Louisiana, was diverted after a strong odor was noticed in the cabin.
The plane landed safely. All one hundred and thirty-six people aboard remained unharmed.
Lufthansa flight LH-681 had to divert and make an emergency landing in Athens, Greece, on August 4th.
The Airbus A321-200 plane heading from Tel Aviv, Israel, to Munich, Germany, was diverted after an electrical odor was noticed on-board.
The plane landed safely. All passengers and crew members remained unharmed.
Spirit Airlines flight NK-779 had to divert and make an emergency landing in Myrtle Beach, South Carolina, on July 26th.
The Airbus A321-200 plane heading from LaGuardia Airport, New York, to Fort Lauderdale–Hollywood International Airport, Florida, was diverted after several passengers and crew members started feeling ill due to a strange odor on board.
The plane landed safely. Ten people were taken to hospital.
British Airways flight BA-864 had to return and make an emergency landing at Heathrow Airport, England, on 
July 23rd.
The Airbus A320-200 plane took off for Warsaw, Poland, but had to turn back due to an unidentified odor onboard.
The plane landed safely. All passengers and crew members remained unharmed.
Brussels Airlines flight SN-3765 had to divert and make an emergency landing at Toulouse–Blagnac Airport, France, on July 13th.
The Airbus A319-100 flying from Brussels, Belgium, to Palma Mallorca, Spain, had to divert due to an unusual odour in its cockpit.
The plane landed safely.
All 140 people aboard remained safe.
Swiss International Air Lines flight LX-7288 had to return and make an emergency landing in Zurich, Switzerland, on July 4th.
The Airbus A330-300 plane took off for Johannesburg, South Africa, but had to turn back due to a nasty odor on board.
The plane landed safely. Everyone aboard remained unharmed.
Air Greenland flight GL-784 made an emergency landing in Keflavik, Iceland, on July 3rd.
The Airbus A330-200 plane heading from Kangerlussuaq, Greenland, to Copenhagen, Denmark, was diverted after an unusual odor was noticed in the galley.
The plane landed safely. All one hundred and forty-six passengers aboard remained unharmed.
Lufthansa flight LH-2414 had to return and make an emergency landing in Munich, Germany, on June 29th.
The Airbus A321-200 plane took off for Stockholm, Sweden, but had to turn back due to an unusual odor in the cockpit.
The plane landed back safely. All passengers and crew members remained unharmed.
Lufthansa flight LH-582 made an emergency landing in Izmir, Turkey, on June 1st.
The Airbus A321-200 plane heading from Frankfurt, Germany, to Cairo, Egypt, was diverted after an electrical odor was noticed in the aft lavatory and cabin.
The plane landed safely. All one hundred and sixty-three people aboard remained unharmed.
Transavia flight HV-5666 had to make an emergency landing in Faro, Portugal, on May 29th.
According to the airline, the plane heading from Amsterdam, Netherlands, to Gran Canaria, Spain, was diverted due to ‘medical reasons’.
It is believed that the flight was diverted after a passenger’s body odor caused several other passengers around him to vomit and faint.
The plane landed safely.
Frontier Airlines flight F9-1764 made an emergency landing in Phoenix, Arizona, on May 27th.
The Airbus A320-200 plane heading from San Diego, California, to Tulsa, Oklahoma, was diverted after a number of passengers reported feeling unwell due to an unidentified odor on-board.
The plane landed safely. Seventeen passengers were examined by the medical teams at the airport while one passenger was taken to a hospital.
Frontier Airlines flight F9-1839 had to divert and make an emergency landing in Albuquerque, New Mexico, on May 20th.
The Airbus A320-200 plane heading from Tulsa, Oklahoma, to San Diego, California, was diverted after an unidentified odor was noticed in the aft cabin.
The plane landed safely. All one hundred and twenty-nine passengers and six crew members remained unharmed.
Frontier Airlines flight F9-1286 had to return and make an emergency landing in Denver, Colorado, on May 14th.
The Airbus A319-100 plane took off for Chicago, Illinois, but had to turn back due to an unidentified odor on-board.
The plane landed back safely. All passengers and crew members remained unharmed.
American Airlines flight AA-2587 had to return and make an emergency landing in Chicago, Illinois, on May 8th.
The Airbus A321-200 plane took off for Dallas/Fort Worth International Airport, Texas, but had to turn back after an odor was noticed in the cabin.
The plane landed safely. All one hundred and seventy-five passengers and six crew members remained unharmed.