Transatlantic route record · UK CAA departure punctuality
LGW→BOS
London to Boston
- Flights
- 311 both ways
- Carriers
- 1
- Distance
- 3,274 mi
- Period
- September 2025 to August 2026
Over the twelve months to August 2026, 82.9% of departures from London Gatwick to Boston Logan International left within 15 minutes of their planned time, from 155 flights the UK Civil Aviation Authority matched to a schedule. That is 7 points ahead of the 76.4% recorded across every UK departure to the United States, and it ranks 5th of the 50 UK-to-US routes with a usable record. About one flight in six left at least 15 minutes behind schedule, and 2 of 157 scheduled departures, 1.3%, did not operate at all.
The route's 82.9% is essentially unchanged from the same twelve months a year earlier, when 83.3% 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. A single carrier accounts for almost every departure, so the route figure and the airline figure are the same number.
Key figures
Left on time
82.9%
Within 15 minutes of schedule, of 155 departures (CAA)
Avg delay
13 min
Across all departures, early counted as zero
Cancelled
1.27%
All UK-to-US departures: 2.16%
3+ hours late
0.65%
The UK261 compensation threshold
5.7% of departures left more than an hour late, and 0.65% left three hours or more behind schedule, roughly one flight in 100. 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 13.3 minutes, against 14.2 for all UK-to-US departures.
Carrier by carrier
Which airline leaves LGW for BOS on time
JetBlue Airways is the only carrier the DOT report shows on LGW to BOS, with 311 flights and an average of 129 passengers aboard each. A single-carrier route gives a delayed passenger no same-day alternative on the same ticket, which is worth knowing before booking a tight onward connection.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| JetBlue Airwaysthin sample | 157 | 82.9% | 13 min | 1.27% | B |
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 LGW to BOS are distributed
- Early15+ min early0.0%
- On timeup to 15 min late82.9%
- 16–30 min6.9%
- 31–60 min3.2%
- 1–2 hours3.8%
- 2–3 hours1.3%
- 3–6 hourscompensation threshold0.0%
- Over 6 hours0.6%
Scale runs 0% to 100%.
Across the year
When LGW to BOS runs late
The DOT's international report puts 62 flights on the pair in July 2025, the busiest month of the window, and 0 in April 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 202562
- August 202562
- September 202559
- October 202549
- November 20250
- December 20250
- January 20260
- February 20260
- March 20260
- April 20260
- May 202621
- June 202658
The DOT's international report counts flights in both directions together: 311 between LGW and BOS from July 2025 to June 2026, about three departures a week in each direction, carrying 40,091 passengers. That makes it the 4th busiest of 7 US routes from London Gatwick and the 18th busiest of 21 European routes into BOS.
The return leg
BOS to LGW: arrivals back into London
Coming the other way, 75.9% of arrivals from Boston Logan International into London Gatwick reached the gate within 15 minutes of schedule, across 155 flights. 22% 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. 0.62% of those arrivals were three hours or more late, the figure that decides a compensation claim on the return trip, and 1.3% were cancelled.
Arrived on time
75.9%
Within 15 minutes, of 155 arrivals
Early
21.7%
More than 15 minutes ahead of schedule
Cancelled
1.27%
3+ hours late
0.62%
Arrival delay, the compensation test
- Early15+ min early21.7%
- On timeup to 15 min late54.2%
- 16–30 min8.2%
- 31–60 min7.7%
- 1–2 hours2.5%
- 2–3 hours3.8%
- 3–6 hourscompensation threshold0.6%
- Over 6 hours0.0%
Scale runs 0% to 100%.
The departure airport
How London Gatwick is running
EUROCONTROL's figures for London Gatwick as a whole, every airline and every destination: 69.2% of departures and 71.9% of arrivals within 15 minutes of schedule from 1 January to 21 October 2026, with 96.5% of scheduled flights operated. The last seven days ran at 64.9% for departures, 4 points worse than the year so far. Air traffic flow management delay attributed to the airport averaged 1.5 minutes per arriving flight this year, 1.6 over the last week.
| Window | Departures on time | Arrivals on time | Schedules operated | ATFM delay / arrival |
|---|---|---|---|---|
| Yesterday (21 October 2026) | 74.9% | 80.1% | 97.0% | 1.7 min |
| Last 7 days | 64.9% | 71.1% | 96.9% | 1.6 min |
| Year to date | 69.2% | 71.9% | 96.5% | 1.5 min |
Every US route from London Gatwick, 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 LGW 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 LGW to BOS
Every flight that departs London Gatwick 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 3,274 miles, 5,268 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 LGW to BOS
Booked blind, LGW to BOS is a B route by the departure record, and there is no carrier choice to make. Leave at least two hours for any onward connection at BOS: 6% of departures were an hour or more late, and immigration comes before the connecting flight.
Common questions
LGW to BOS questions
How often are LGW to BOS flights delayed?
About one flight in six leaves London Gatwick at least 15 minutes behind schedule, 17.1% of the 155 departures the CAA matched between September 2025 and August 2026. 5.7% left more than an hour late and 0.65% three hours or more. A further 1.3% of scheduled departures were cancelled.
Which airlines fly LGW to BOS?
JetBlue Airways. JetBlue Airways accounted for 100% of the 311 flights the DOT counted on the pair.
Can I claim compensation for a delayed LGW 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 London Gatwick 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 0.65% 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 LGW?
75.9% of arrivals from Boston Logan International reached the gate at London Gatwick within 15 minutes of schedule across 155 flights, and 22% arrived more than 15 minutes early, as eastbound crossings often do. 1.3% were cancelled.
Related
Where to go next
- London Gatwick (LGW): every US route
- Boston Logan International (BOS) delay statistics
- LGW to MCO, Orlando (MCO)1,625 flights
- LGW to JFK, New York (JFK)906 flights
- LGW to TPA, Tampa (TPA)625 flights
- LGW to LAX, Los Angeles (LAX)168 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 London Gatwick; the arrival record for the return leg is also measured at London Gatwick. 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.