Should I check in online or at the airport?

Related questions

1. Do you have to be at the airport 2 hours before?
2. How long before your flight should you check in?
3. Can I check in the night before at Heathrow?
4. When should you arrive at an airport?
5. Why do they ask for your boarding pass in duty free?
6. Does the Heathrow Express go to Terminal 5?
7. Can I travel without a printout of e ticket?
8. Is there a pick up point at Heathrow Terminal 5?
9. How many planes take off every minute at Heathrow?
10. Do I have to go through security again for connecting flight?

Tags

1. #least
2. #airport
3. #allows
4. #domestic
5. #checking
6. #saves
7. #online
8. #before
9. #hours
10. #should
11. #flight
12. #ahead
13. #security
14. #right