27 destinations have scheduled flights from KEF, about 165 departures a week. Weekly frequencies come from airline schedules and observed departures, not live status.
| Destination | Flights per week | Airlines | Typical duration |
|---|---|---|---|
| Seattle–Tacoma International Airport (SEA) | 14 | Icelandair | — |
| Toronto Pearson International Airport (YYZ) | 12 | Icelandair | — |
| Boston Logan International Airport (BOS) | 11 | Icelandair | — |
| Copenhagen Kastrup Airport (CPH) | 11 | Icelandair, SAS | — |
| John F. Kennedy International Airport (JFK) | 11 | Icelandair | — |
| Baltimore/Washington International Thurgood Marshall Airport (BWI) | 7 | Icelandair | — |
| Newark Liberty International Airport (EWR) | 7 | Icelandair | — |
| Washington Dulles International Airport (IAD) | 7 | Icelandair | — |
| London Heathrow Airport (LHR) | 7 | Icelandair | — |
| Chicago O'Hare International Airport (ORD) | 7 | Icelandair | — |
| Denver International Airport (DEN) | 6 | Icelandair | — |
| Billund Airport (BLL) | 5 | AirExplore, s.r.o. | — |
| Gdańsk Lech Wałęsa Airport (GDN) | 5 | Wizz Air Hungary Ltd. | — |
| Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field (MSP) | 5 | Icelandair | — |
| Raleigh-Durham International Airport (RDU) | 5 | Icelandair | — |
| Nashville International Airport (BNA) | 4 | Icelandair | — |
| Budapest Liszt Ferenc International Airport (BUD) | 4 | Wizz Air Hungary Ltd. | — |
| East Midlands Airport (EMA) | 4 | DHL Air | — |
| Helsinki Vantaa Airport (HEL) | 4 | Finnair | — |
| Katowice Wojciech Korfanty International Airport (KTW) | 4 | Wizz Air Hungary Ltd. | — |
| Liège Airport (LGG) | 4 | Icelandair | — |
| Orlando International Airport (MCO) | 4 | Icelandair | — |
| Portland International Airport (PDX) | 4 | Icelandair | — |
| Vancouver International Airport (YVR) | 4 | Icelandair | — |
| Alicante-Elche Miguel Hernández Airport (ALC) | 3 | Icelandair | — |
| Frankfurt Main Airport (FRA) | 3 | Lufthansa Cargo | — |
| Milan Malpensa International Airport (MXP) | 3 | LC Busre SAC | — |
GET /routes returns each scheduled flight from KEF: airline, flight number, departure and arrival time, duration, days of operation and aircraft type.
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