Transatlantic route record · UK CAA departure punctuality
EDI→BOS
Edinburgh to Boston
- Flights
- 723 both ways
- Carriers
- 2
- Distance
- 3,061 mi
- Period
- September 2025 to August 2026
Over the twelve months to August 2026, 75.5% of departures from Edinburgh to Boston Logan International left within 15 minutes of their planned time, from 361 flights the UK Civil Aviation Authority matched to a schedule. That is about a point behind the 76.4% recorded across every UK departure to the United States, and it ranks 23rd of the 50 UK-to-US routes with a usable record. About one flight in four left at least 15 minutes behind schedule, and 2 of 363 scheduled departures, 0.6%, did not operate at all.
The route's 75.5% is a decline of 4 points from the same months a year earlier, when 79.2% left on time. Across every departure from the 25 UK airports the CAA reports, to any destination, 72.4% left within 15 minutes in the same period; transatlantic departures run slightly better than the UK average, partly because wide-body long-haul flights are scheduled with more slack than short-haul rotations. Within the route, the spread between carriers is 2 points, which matters more to a booking than the route average does.
Key figures
Left on time
75.5%
Within 15 minutes of schedule, of 361 departures (CAA)
Avg delay
20 min
Across all departures, early counted as zero
Cancelled
0.55%
All UK-to-US departures: 2.16%
3+ hours late
1.94%
The UK261 compensation threshold
11.0% of departures left more than an hour late, and 1.94% left three hours or more behind schedule, about one flight in 50. Three hours at arrival is the threshold at which UK261 compensation becomes payable, £520 a passenger on a sector of this length; the CAA measures the departure, so a flight in that band left the gate three hours late, which is not quite the same test but rarely ends differently after seven hours over the Atlantic. The average delay across every matched departure, early ones counted as zero, was 20.4 minutes, against 14.2 for all UK-to-US departures.
Carrier by carrier
Which airline leaves EDI for BOS on time
JetBlue Airways is the most punctual carrier on the departing leg at 76.2% across 191 flights, and Delta Air Lines the least at 74.7% across 170. 2 points between them is a modest gap, the kind a bad week can erase. No carrier here cancels unusually often; the highest cancellation rate on the route is JetBlue Airways's 1.0%.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| JetBlue Airwaysthin sample | 193 | 76.2% | 17 min | 1.04% | B |
| Delta Air Linesthin sample | 170 | 74.7% | 24 min | 0.00% | C+ |
Flights are scheduled departures in the CAA file, operated plus cancelled; on time is within 15 minutes of the planned off-block time. The DOT count below includes the return direction and may differ.
How late is late
How delays on EDI to BOS are distributed
- Early15+ min early4.9%
- On timeup to 15 min late70.6%
- 16–30 min7.4%
- 31–60 min5.5%
- 1–2 hours6.1%
- 2–3 hours3.0%
- 3–6 hourscompensation threshold1.7%
- Over 6 hours0.3%
Scale runs 0% to 100%.
Across the year
When EDI to BOS runs late
The DOT's international report puts 124 flights on the pair in August 2025, the busiest month of the window, and 0 in March 2026, the thinnest. A summer-to-winter swing of that size means the winter schedule is a different operation: fewer frequencies, so a cancellation leaves a longer wait for the next seat.
Flights per month, both directions
- July 2025122
- August 2025124
- September 2025120
- October 202597
- November 20250
- December 20250
- January 20260
- February 20260
- March 20260
- April 202629
- May 2026111
- June 2026120
The DOT's international report counts flights in both directions together: 723 between EDI and BOS from July 2025 to June 2026, about one departure a day in each direction, carrying 108,667 passengers. That makes it the 3rd busiest of 8 US routes from Edinburgh and the 13th busiest of 21 European routes into BOS.
The return leg
BOS to EDI: arrivals back into Edinburgh
Coming the other way, 72.6% of arrivals from Boston Logan International into Edinburgh reached the gate within 15 minutes of schedule, across 361 flights. 20% arrived more than 15 minutes early, which is normal for an eastbound crossing with the jet stream behind it and a schedule padded for the days it is not. 1.39% of those arrivals were three hours or more late, the figure that decides a compensation claim on the return trip, and 0.8% were cancelled.
Arrived on time
72.6%
Within 15 minutes, of 361 arrivals
Early
20.1%
More than 15 minutes ahead of schedule
Cancelled
0.82%
3+ hours late
1.39%
Arrival delay, the compensation test
- Early15+ min early20.1%
- On timeup to 15 min late52.5%
- 16–30 min10.7%
- 31–60 min8.0%
- 1–2 hours6.0%
- 2–3 hours0.5%
- 3–6 hourscompensation threshold1.1%
- Over 6 hours0.3%
Scale runs 0% to 100%.
The departure airport
How Edinburgh is running
EUROCONTROL's figures for Edinburgh as a whole, every airline and every destination: 71.4% of departures and 74.0% of arrivals within 15 minutes of schedule from 1 January to 21 October 2026, with 97.0% of scheduled flights operated. The last seven days ran at 73.0% for departures, 2 points better than the year so far. Air traffic flow management delay attributed to the airport averaged 0.0 minutes per arriving flight this year, 0.0 over the last week.
| Window | Departures on time | Arrivals on time | Schedules operated | ATFM delay / arrival |
|---|---|---|---|---|
| Yesterday (21 October 2026) | 81.7% | 82.1% | 96.5% | 0.0 min |
| Last 7 days | 73.0% | 77.0% | 96.8% | 0.0 min |
| Year to date | 71.4% | 74.0% | 97.0% | 0.0 min |
Every US route from Edinburgh, and its full punctuality record
The arrival airport
Landing at Boston Logan International
Boston Logan International is scored on this site from the DOT's domestic data: 74.6% of its 144,174 domestic departures arrived on time over the last twelve months, with delayed flights running a little over an hour late, and 3.05% were cancelled. Those are domestic flights, not this route, but an arriving transatlantic flight shares the same runways, the same weather and the same ground delay programmes, so a bad day at BOS reaches a flight from EDI just as surely. The airport's own page has the hour-by-hour and month-by-month detail, and its live FAA status appears above when the FAA has something to say.
Domestic on time
74.6%
Arrivals under 15 minutes late (DOT)
Avg delay
73 min
Delayed domestic flights only
Cancelled
3.05%
Domestic departures
144,174
Last twelve months
Boston Logan International (BOS) delay statistics, hour by hour and month by month
Your rights
UK261 on EDI to BOS
Every flight that departs Edinburgh falls under UK261, the retained version of the EU regulation, whichever airline flies it and wherever it lands. If it arrives at Boston Logan International three hours or more late, or is cancelled with under 14 days' notice, and the cause was within the airline's control, each passenger is owed £520 (£260 if the airline got you there under four hours late), on top of rebooking and care. Weather, air traffic control restrictions and strikes outside the airline are the usual exemptions. The return flight from BOS is covered only when the carrier is UK or EU based. The sector is about 3,061 miles, 4,925 km, which puts it in the top distance band.
Delayed three hours or more? Check a claim with Compensair →
What to do with this
Booking EDI to BOS
Booked blind, EDI to BOS is a B+ route by the departure record. Booked with the numbers, it is JetBlue Airways at 76.2%, outside July if the dates are flexible, and a connection at BOS with at least two hours in hand, because 11% of departures were an hour or more late and immigration comes before any onward flight.
Common questions
EDI to BOS questions
How often are EDI to BOS flights delayed?
About one flight in four leaves Edinburgh at least 15 minutes behind schedule, 24.5% of the 361 departures the CAA matched between September 2025 and August 2026. 11.0% left more than an hour late and 1.94% three hours or more. A further 0.6% of scheduled departures were cancelled.
Which airline is most punctual from EDI to BOS?
JetBlue Airways, at 76.2% of departures within 15 minutes across 191 flights. Delta Air Lines is lowest at 74.7%. Cancellation rates were 1.0% and 0.0% respectively.
Can I claim compensation for a delayed EDI to BOS flight?
Yes, if the flight arrived three hours or more late or was cancelled at short notice for a reason within the airline's control: departures from Edinburgh are covered by UK261 whichever airline operates them. The fixed amount for a sector of this length is £520 a passenger, £260 if the airline got you there under four hours late. On this route 1.94% of departures left three hours or more late over the last twelve months. The return from BOS is covered only on a UK or EU carrier.
How punctual is the return leg, BOS to EDI?
72.6% of arrivals from Boston Logan International reached the gate at Edinburgh within 15 minutes of schedule across 361 flights, and 20% arrived more than 15 minutes early, as eastbound crossings often do. 0.8% were cancelled.
Related
Where to go next
- Edinburgh (EDI): every US route
- Boston Logan International (BOS) delay statistics
- EDI to JFK, New York (JFK)1,104 flights
- EDI to EWR, Newark (EWR)886 flights
- EDI to IAD, Washington (IAD)541 flights
- EDI to ATL, Atlanta (ATL)445 flights
- LHR to BOS, from London5,370 flights
- CDG to BOS, from Paris2,530 flights
- DUB to BOS, from Dublin2,476 flights
- AMS to BOS, from Amsterdam2,230 flights
- Every Europe-to-US route and airport
The departure record is the CAA's, measured at Edinburgh; the arrival record for the return leg is also measured at Edinburgh. Nothing here is measured at BOS, where the DOT keeps no record of international flights.
Sources: US DOT Bureau of Transportation Statistics, International Report (flights and passengers by carrier and airport pair), July 2025 to June 2026; UK Civil Aviation Authority punctuality statistics, September 2025 to August 2026; EUROCONTROL Aviation Intelligence Portal, airport punctuality and ATFM delay to 21 October 2026. Rebuilt 22 October 2026; the EUROCONTROL figures refresh with each weekly build, the others when their publisher releases a month. How these sources differ.