Alaska has three freeways, all in the Anchorage area -- one including part of the Glenn Highway (part of state route 1) and a small part of the Parks Highway (state route 3) northeast of downtown Anchorage, another including part of the Seward Highway (also part of state route 1) southeast of downtown, and the third a part of unnumbered Minnesota Drive and O'Malley Road south of downtown (passing near the airport). There are also highways with interchanges in the Fairbanks area, but those highways also have at-grade intersections mixed in, making them "expressways" rather than "freeways."

The tables below show information for each freeway, separately for each direction of travel. They attempt to provide the same basic information for each exit as you'll see on the freeway as you approach the exit. There also is additional information not necessarily shown on the actual exit signs, indicated by (parentheses), including in particular milemarker-based exit numbers as if Alaska DOT&PF numbered its exits (the only ones it numbers, as far as I know, are on an expressway in Fairbanks), to help you gauge the locations of and distances between interchanges.

The exit information shown below is based on my own travels of the Anchorage area freeway system in July 2001, and July and August 2007, with an update for a new Glenn Highway interchange completed October 2008. The route marker graphics below were generated using Kurumi's Signmaker program.

Glenn Highway (part of state route 1, and of unsigned Interstate A-1)
Parks Highway (state route 3, and unsigned Interstate A-4)

As shown below, the freeway portion of the Glenn Highway continues as part of the Parks Highway to Wasilla and points north, changing name and route number, with the continuation of the Glenn Highway exiting from the freeway to turn toward Palmer and points east (but the mileposting on the Glenn Highway continues also on the Parks Highway, so mile 0 for the Parks Highway is in downtown Anchorage rather than at its junction with the Glenn Highway). This exit list treats the freeway portions of both highways as a single freeway.