Alaska Airlines vs Delta Air Lines

Side-by-side comparison of Alaska Airlines and Delta Air Lines: cabin and checked baggage allowances, fees, online check-in deadlines, alliances, hubs and contacts.

Alaska AirlinesDelta Air Lines
Country United StatesUnited States
Founded 19321925
Type Full-service airlineFull-service airline
Alliance oneworldSkyTeam
Main hubs Seattle-Tacoma International Airport, Ted Stevens Anchorage International Airport, Portland International AirportCincinnati/Northern Kentucky International Airport, John F. Kennedy International Airport, Hartsfield-Jackson Atlanta International Airport
Aircraft types 610
Cabin bag size 56 × 36 × 23 cm (22 × 14 × 9 in)56 × 35 × 23 cm (22 × 14 × 9 in)
Checked bag (Economy) 1 piece · 23 kg (51 lb)1 piece · 23 kg (51 lb)
First checked bag fee from 45 USDfrom 45 USD
Extra bag fee from 55 USDfrom 55 USD
Online check-in opens 24 h24 h
Online check-in closes 45 min45 min
Airport check-in fee freefree
Customer service phone 1-800-252-7522800-221-1212

Key differences

  • Alaska Airlines is a oneworld member, so miles and status benefits carry over to partner airlines.
  • Delta Air Lines is a SkyTeam member, so miles and status benefits carry over to partner airlines.

Other comparisons

Allowances shown are for the basic Economy fare on most routes. Fees are the lowest published prices and change often - confirm on the official websites before booking.