Is 45 minutes enough at BOS? 27% of inbound flights landed too late for it, allowing 30 minutes to reach the next gate. Book 100 minutes to keep the risk under 1 in 10, or 120 in July.
Separately, 3.2% of flights into BOS were cancelled or diverted (4.4% in July). That isn't a missed connection in the same sense: on one booking the airline rebooks you, though it can still cost you the day.
Check your exact itinerary through BOS →
Missed-connection risk by layover and month
Share of flights that landed at BOS too late for the connection (cancellations not included), pooled over 2023–2026. Read across your travel month.
| Layover | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 40 min | 25% | 26% | 27% | 25% | 30% | 30% | 36% | 31% | 33% | 27% | 21% | 28% | 31% |
| 50 min | 19% | 18% | 19% | 18% | 23% | 24% | 29% | 25% | 26% | 20% | 15% | 21% | 24% |
| 60 min | 15% | 14% | 15% | 14% | 18% | 19% | 24% | 20% | 21% | 15% | 11% | 16% | 20% |
| 75 min | 11% | 10% | 11% | 10% | 13% | 15% | 19% | 16% | 16% | 11% | 8% | 12% | 15% |
| 90 min | 8% | 8% | 8% | 7% | 10% | 12% | 15% | 12% | 12% | 9% | 6% | 9% | 12% |
| 120 min | 5% | 5% | 5% | 4% | 6% | 7% | 9% | 8% | 7% | 5% | 4% | 6% | 7% |
Counts flights that landed; cancelled and diverted inbound flights are reported separately above. Assumes 30 minutes to get off the plane and reach the next gate, and that the onward flight leaves on time. A terminal change or re-checking bags needs more.
Late in the day is riskier
Share of flights that would miss a 60-minute connection, by scheduled arrival time at BOS (past 12 months). Delays pile up through the day.
Riskiest flights in
| From | Flights | Miss 60 min |
|---|---|---|
| AUS Austin | 1,713 | 25% |
| PBI West Palm Beach | 2,038 | 24% |
| ORD Chicago | 7,864 | 24% |
| FLL Fort Lauderdale | 3,293 | 23% |
| CHS Charleston | 1,150 | 23% |
| DFW Dallas | 3,695 | 23% |
| DCA Washington | 9,104 | 22% |
| MDW Chicago | 1,368 | 22% |
| STL St. Louis | 1,616 | 22% |
| RSW Fort Myers | 2,168 | 22% |
| DEN Denver | 3,851 | 22% |
| BNA Nashville | 2,940 | 22% |
Safest flights in
| From | Flights | Miss 60 min |
|---|---|---|
| SLC Salt Lake City | 1,264 | 12% |
| CMH Columbus | 2,005 | 13% |
| SEA Seattle | 2,554 | 15% |
| MSP Minneapolis | 1,849 | 15% |
| PHX Phoenix | 2,010 | 15% |
| IAD Washington | 1,524 | 15% |
| IND Indianapolis | 2,025 | 15% |
| CVG Cincinnati | 2,059 | 16% |
| LAX Los Angeles | 4,797 | 16% |
| PIT Pittsburgh | 2,162 | 16% |
| RDU Raleigh | 2,847 | 16% |
| CLE Cleveland | 1,620 | 16% |
Last flights of the day from BOS
If your inbound runs late and you miss one of these, the next flight is usually the next morning. Typical last scheduled departure over the past three months:
| To | Last departure | Flights / day |
|---|---|---|
| RSW Fort Myers | 4:22 p.m. | 3 |
| SAN San Diego | 5:10 p.m. | 6.6 |
| IAH Houston | 5:35 p.m. | 6.3 |
| IND Indianapolis | 5:45 p.m. | 5.7 |
| PHX Phoenix | 5:50 p.m. | 4.7 |
| MIA Miami | 6:00 p.m. | 8.6 |
| FLL Fort Lauderdale | 6:51 p.m. | 5.8 |
| DFW Dallas | 6:55 p.m. | 10.5 |
| CMH Columbus | 7:25 p.m. | 5.5 |
| CLT Charlotte | 7:40 p.m. | 11.2 |
| SEA Seattle | 7:44 p.m. | 9.8 |
| ATL Atlanta | 7:52 p.m. | 15 |
| BNA Nashville | 7:52 p.m. | 8.6 |
| PBI West Palm Beach | 8:05 p.m. | 3.8 |
| MCO Orlando | 8:20 p.m. | 10.2 |
| EWR Newark | 8:26 p.m. | 9.6 |
| PHL Philadelphia | 8:35 p.m. | 14 |
| LAX Los Angeles | 8:35 p.m. | 15 |
| PIT Pittsburgh | 8:38 p.m. | 6.7 |
| DEN Denver | 8:39 p.m. | 12.3 |
| ORD Chicago | 8:45 p.m. | 24.6 |
| CVG Cincinnati | 8:45 p.m. | 6.1 |
| TPA Tampa | 8:52 p.m. | 6.7 |
| SFO San Francisco | 8:55 p.m. | 16.3 |
| BWI Baltimore | 8:55 p.m. | 10.2 |
| RDU Raleigh | 8:57 p.m. | 7.6 |
| JFK New York | 8:80 p.m. | 12.7 |
| DTW Detroit | 9:05 p.m. | 7.3 |
| DCA Washington | 9:48 p.m. | 23.2 |
| LGA New York | 10:00 p.m. | 20 |
Questions
Is 45 minutes enough for a connection at BOS?
Often, not always. Over the past year 27% of flights into Boston landed too late to leave 30 minutes to reach the next gate on a 45-minute layover. With 60 minutes it was 20%; with 90, 12%. Separately, 3.2% of inbound flights were cancelled or diverted; on one booking the airline rebooks you.
How long a layover do I need at BOS?
To keep the risk of a late inbound below 1 in 10, about 100 minutes on an average month and 120 minutes in July, the worst month. Add time if you change terminals or need to re-check bags.
An estimate from past arrival delays, not a guarantee. On one ticket, the airline will rebook you if you misconnect. On separate tickets you're on your own, so leave far more time. Method.