Line 57 serves 22 to 28 scheduled stops along Ring Road 1, from major terminals to rural roadside drop-off points. The full south-to-north sequence includes Mjódd E, Ártún A, Hálsar, Úlfarsá, FMOS, Bæjarás, Leirvogstunga, Esjumelar, Klébergsskóli, Vallargrund/Esjugrund, Melahverfi, Borgarnes A (Hyrnan), Baula, Bifröst, Staðarskáli, Hvammstangavegur, Víðigerði, Blönduós, Sauðárkrókur/N1 (select runs), Varmahlíð, Akureyri/Hof, and Akureyri Airport.
| Stop | Location | Nearby Services | Connections |
| Mjódd (Bay E) | Capital Region Southern Terminal | Waiting hall, ticketing kiosks, restrooms, groceries, taxi stand | Capital buses (Lines 1, 3, 4, 11, 12, 21, 24) |
| Ártún (Bay A) | Northern Capital Exit Hub | Covered shelters, real-time arrival displays | Capital express routes (5, 6, 15, 18) |
| Melahverfi | Hvalfjarðarsveit Rural Stop | Basic roadside shelter | Local West Iceland connectors |
| Borgarnes (Hyrnan) | Borgarbyggð Regional Hub | N1 service center, restaurant, restrooms, grocery, ATM | Line 50 (Akranes), Line 58 (Stykkishólmur), Line 59 (Hólmavík) |
| Bifröst | Bifröst University Village | Campus store, coffee shop, hotel | Regional campus shuttles |
| Staðarskáli | Hrútafjörður Midway Stop | N1 travel plaza, hot food, convenience store, restrooms, fuel | Westfjords overland connections |
| Hvammstangavegur | Route 1 / Route 72 Junction | Roadside pickup shelter | Feeder connection to Hvammstangi |
| Víðigerði | Víðidalur Service Station | Gas station, basic refreshments, WC | Rural district connectors |
| Blönduós | Blanda River Bridge Hub | N1 service center, supermarket, pharmacy, lodging | Line 84 (Skagaströnd) |
| Varmahlíð | Skagafjörður Regional Hub | Service station, tourist info, cafe, hotel | Line 84 feeder to Sauðárkrókur |
| Akureyri (Hof) | Downtown Cultural Centre | Cultural center, info desk, restrooms, near hotels | Akureyri city buses (A1–A6), Line 56 (Egilsstaðir) |
| Akureyri Airport | Eyjafjörður Terminal | Domestic air terminal, car rentals, taxi stands | Domestic air (Icelandair/Norlandair) |
Key transfer opportunities: at Borgarnes (Hyrnan), connect to Line 58 for the Snæfellsnes Peninsula (Stykkishólmur) or Line 59 toward Hólmavík in the Westfjords. At Varmahlíð & Blönduós, Line 84 serves the northern coastal towns of Sauðárkrókur and Skagaströnd. At Akureyri (Hof), transfer to the zero-fare Akureyri municipal network (Lines A1–A6) or Line 56 toward Egilsstaðir.