--- title: "Reykjavik (KEF) to Boston (BOS) flights: who flies it" description: "Delta Air Lines and Icelandair fly nonstop from KEF to BOS, about 8 flights a week, covering 2,407 miles. Upgrade and award space by date on 2LNR, next 14 days free." canonical: "https://2lnr.com/routes/kef-bos" url: "https://2lnr.com/routes/kef-bos.md" date_modified: "2026-10-18T05:10:47Z" --- # Reykjavik to Boston (KEF-BOS): nonstop upgrade & award space Icelandair and Delta Air Lines fly the KEF to BOS nonstop about 8 times a week. The timetable below shows the nonstop scheduled at 5h 40m to 5h 50m for the 2,407 miles. 2LNR checks confirmed upgrade and award space on Delta Air Lines flights on this route, so you can see which departures have space before you book. Schedule last confirmed October 18, 2026. Departure times come from 2LNR's schedule data; confirm with the airline before you book. Updated October 22, 2026. See KEF to BOS on the interactive map [Get started free](https://2lnr.com/login) 8 Flights a week, 4-week average 5h 40m to 5h 50m Scheduled flight time 2,407 mi Nonstop distance Free To get started ## Reykjavik to Boston flight schedule Scheduled nonstop departures for KEF to BOS starting October 22, 2026, last checked against our schedule feed on October 18, 2026. Airlines retime and cancel flights, so confirm with the airline before you book. Scheduled nonstop departures from Reykjavik (KEF) to Boston (BOS) | Date | Flight | Airline | Departs KEF | Arrives BOS | Duration | Aircraft | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | Thu, Oct 22 | FI 631 | Icelandair | 17:10 | 18:50 | 5h 40m | Boeing 767-300 | | Fri, Oct 23 | FI 631 | Icelandair | 17:10 | 18:50 | 5h 40m | Boeing 767-300 | | Fri, Oct 23 | FI 633 | Icelandair | 19:55 | 21:45 | 5h 50m | [Boeing 737 MAX 8](https://2lnr.com/seatmaps/fi/737-max-8.md) | | Sat, Oct 24 | FI 631 | Icelandair | 17:10 | 18:50 | 5h 40m | Boeing 767-300 | | Sun, Oct 25 | FI 631 | Icelandair | 17:00 | 18:50 | 5h 50m | Boeing 767-300 | | Sun, Oct 25 | FI 633 | Icelandair | 20:25 | 22:15 | 5h 50m | Boeing 737 MAX 8 | | Mon, Oct 26 | FI 631 | Icelandair | 17:00 | 18:50 | 5h 50m | Boeing 767-300 | | Tue, Oct 27 | FI 631 | Icelandair | 17:00 | 18:50 | 5h 50m | Boeing 767-300 | | Wed, Oct 28 | FI 631 | Icelandair | 17:00 | 18:50 | 5h 50m | Boeing 767-300 | Showing all 9 scheduled KEF to BOS departures across 7 days with service, starting October 22, 2026. Later dates are on the interactive map. Departure and arrival times are local at their own airport, so an arrival can fall on a different local date than the departure; the duration column is the true elapsed flying time. A dash means the airline hasn't filed that value in the schedule data we hold. Aircraft are the equipment the airline filed, named where the code pins down one type and shown as the family or the bare code where it doesn't. Swaps can happen up to departure. See every KEF to BOS date on the interactive map ## Aircraft on the Reykjavik to Boston nonstop Icelandair flies the departures in the schedule table on this page with the Boeing 767-300 and the [Boeing 737 MAX 8](https://2lnr.com/seatmaps/fi/737-max-8.md). Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure. ## Confirmed upgrade & award space on KEF to BOS departures 2LNR tracks confirmed upgrade and award space on Delta Air Lines, segment by segment and date by date. Open the calendar for Reykjavik to Boston to see which departures have space, the next 14 days free on every product and the full horizon on Pro. ### See real availability Confirmed upgrade or award seats by date on the KEF to BOS departures 2LNR tracks, checked against live inventory so you know what's open before you book. ### Set an alert Premium inventory turns over fast. Watch this route on Pro and 2LNR notifies you when space appears on a date you're tracking. ### Plan on the map See KEF to BOS on the interactive route map, with schedules, connections, and route statistics. ## Airlines flying Reykjavik to Boston nonstop Carriers operating KEF to BOS nonstop in the current schedule. Where 2LNR tracks the carrier, its departures show confirmed upgrade or award space by date. - [Icelandair (FI) route map](https://2lnr.com/routes/airlines/fi.md)\ [The aircraft FI flies](https://2lnr.com/seatmaps/fi.md) - [Delta Air Lines (DL) route map](https://2lnr.com/routes/airlines/dl.md)\ [The aircraft DL flies](https://2lnr.com/seatmaps/dl.md) See KEF to BOS on the interactive map → ## Frequently asked questions about KEF to BOS **How long is the flight from Reykjavik (KEF) to Boston (BOS)?** Scheduled flight times from Reykjavik (KEF) to Boston (BOS) run from 5h 40m to 5h 50m across the departures in the schedule table on this page. The nonstop covers about 2,407 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book. **Which airlines fly nonstop from KEF to BOS?** Icelandair and Delta Air Lines fly KEF to BOS nonstop. 2LNR tracks confirmed upgrade and award space on Delta Air Lines. **How many flights a week are there from KEF to BOS?** About 8 nonstop flights a week run between Reykjavik (KEF) and Boston (BOS) in the current schedule, operated by Icelandair and Delta Air Lines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next. **What time do flights from KEF to BOS depart?** Scheduled KEF to BOS nonstops in the next 7 days with service leave between 17:00 and 20:25, local time at Reykjavik. The schedule table on this page lists every departure by date, with its arrival time and aircraft. **Which flights operate KEF to BOS nonstop?** In the schedule table on this page, KEF to BOS nonstops fly as FI 631 and FI 633 on Icelandair. The table lists each departure by date with its times and aircraft. **How do I check upgrade or award availability on KEF to BOS?** Open the KEF to BOS route on the interactive map or the matrix to see confirmed upgrade and award space by date on Delta Air Lines, the next 14 days free and the full horizon on Pro. On Pro you can also set an alert on the route and 2LNR notifies you when space opens. Flying the other way? See [BOS to KEF upgrade and award space](https://2lnr.com/routes/bos-kef.md). Award seats rather than schedules? See [Delta Air Lines award availability](https://2lnr.com/awards/dl.md). Looking beyond this route? See [every route from Reykjavik (KEF)](https://2lnr.com/routes/kef.md), or [every route from Boston (BOS)](https://2lnr.com/routes/bos.md). - [How Delta upgrades clear](https://2lnr.com/about/dl/upgrades.md) - [How to read award availability by date](https://2lnr.com/guides/award-availability.md) ## Never miss KEF to BOS upgrade or award space See what's open by date on this route, the next 14 days free on every product and the full horizon on Pro. [Get started free](https://2lnr.com/login)