How early can I check in my luggage at Heathrow?

Related questions

1. How long should I arrive before a flight?
2. Can I travel without a printout of e ticket?
3. Does Heathrow Airport have showers?
4. How long does it take to get through security at Heathrow?
5. Can you go through security without a boarding pass?
6. What time do you have to be at the airport if you check in online?
7. How far is LA from London by plane?
8. How much time do I need at Heathrow Airport?
9. Do I have to go through security again for connecting flight?
10. How early should you arrive for international flights?

Tags

1. #baggage
2. #early
3. #prior
4. #emirates
5. #hours
6. #usually
7. #earlier
8. #departure
9. #heathrow
10. #opens
11. #check
12. #flight