Check in with United Airlines
You may check in starting 24 hours before your scheduled flight departure.*
Check-in closes 45 minutes before flights within the U.S., Puerto Rico and the U.S. Virgin Islands and 1 hour before international flights.
Why check in online? 
Save money on bag fees Select your seats Spend less time at the airport
United Airlines Flight # 850 Aircraft Boeing 777 International 1: Cabin = Economy, #of seats = 114, Pitch = 31-32", Width =18'
Save money on bag fees Select your seats Spend less time at the airportUnited Airlines Flight # 6272 (cedar rapids to Chicago)
Seating: UNITED EXPRESS/SKYWEST AIRLINES Cabin = Economy, #of seats = 32, Pitch = 31", Width =17"
United Airlines Flight # 851 (Chicago to Peking)
Seating if we are on:
Boeing 777-200 International 1: Cabin = Economy, #of seats = 114, Pitch = 31-32", Width =18'
Boeing 777-200 National: Cabin = Economy, #of seats = 223, Pitch = 31", Width =18'
I could only find electricy ports in 1st class on these.
National: Cabin = Economy, #of seats = 223, Pitch = 31", Width =18'
United Airlines Flight # 629 Aircraft Canadair RJ 700 UNITED EXPRESS/SKYWEST AIRLINES Cabin = Economy, #of seats = 32, Pitch = 31", Width =17"
