Route profile
MEM→BOS
Flight reliability, delays and best times to fly from Memphis to Boston, 1,139 miles.
Right now
Aviation weather is not currently a factor.
Aviation weather is not currently a factor.
Route reliability
July 2023 – July 2026
Better than 91% of comparable major US routes (4,598 compared)
Calculated from 1,411 flights. How this is calculated
MEM → BOS arrives on time 91.5% of the time; the return trip, BOS → MEM, arrives on time 74.3% of the time, a 17.3-point gap between the two directions of the same city pair. MEM → BOS also cancels 1.06% of flights, against 4.25% for BOS → MEM.
MEM → BOS spends 24.5 minutes on the ground on a 1,139-mile trip: 14.9 minutes from pushback to wheels-up at MEM and 9.6 minutes from touchdown to gate at BOS.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
What stands out
Every day of the week performs about the same on this route, steadier than 99% of 4,467 comparable routes.
93.1% on time on the best day (Friday) against 90.1% on the worst (Monday).
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · Ranked against every other route with the same kind of figure and at least 4,467 in the comparison.
What sets this route apart
Where MEM to BOS differs most from similar routes by hour, weekday, month and airline, July 2023 – July 2026.
MEM to BOS holds up on Sundays better than routes of similar length do: 91.0% on time to their 73.3%, a 17.7 points lead. Against all other routes the gap is 16.2 points.
May is kinder to MEM to BOS than to routes of similar length: 98.4% on time against 74.1%, 24.3 points better. Against all other routes the gap is 23.2 points.
Republic Airways does better on MEM to BOS than on its routes of similar length: 91.5% on time here, 82.3% there, 9.2 points apart. Against all other routes the gap is 9.4 points.
MEM to BOS against comparable routes
July 2023 – July 2026| Measure | This route | Compared with | Them | Gap | Flights behind it |
|---|---|---|---|---|---|
| Weekday: Sunday | 91.0% | routes of similar length | 73.3% | +17.7 pts | 201 here, 362,082 there |
| Month: May | 98.4% | routes of similar length | 74.1% | +24.3 pts | 122 here, 202,807 there |
| Airline: Republic Airways | 91.5% | routes of similar length | 82.3% | +9.2 pts | 1,394 here, 25,541 there |
Each comparison pools the flights of other routes, with this route’s own left out. Similar length means within 15% of this route’s 1,139 miles, with at least 5 such routes. A bucket is set against the most comparable group that has enough flights: similar length, then the same origin (at least 3 routes), then all other routes. Hours, weekdays and months appear only where both sides have 120 completed flights, and airlines where both have 600. The gap must be at least 2 points and 2 standard errors, and only the largest gap each way is kept per measure. These are differences in the flights counted, not causes.
When it goes wrong
July 2023 – July 2026
10 min late
against a median of 13 min early
Percentiles over 1,411 operations; cancelled and diverted flights are counted separately.
Will your connection be tight enough?
Layovers at BOS after arriving from MEM.
| Connection time | Chance of missing | Reads as |
|---|---|---|
| 30 min | 17% | High risk |
| 45 min | 8.2% | Some risk |
| 60 min | 5.2% | Some risk |
| 90 min | 3.8% | Low risk |
| 120 min | 2.6% | Low risk |
This is one leg of a connection. Gate changes and the next flight's own schedule matter too. And a connection can fail before delay is even the question — this route cancels 1.06% of the time and diverts 0.14% of the time, which a late arrival never shows up in.
Chance of missing is the share of 1,394 arrivals on this route that landed later than the connection time less 30 minutes to reach the next gate.
The worst tenth of arrivals on this route land at least 10 minutes late (90th-percentile gate arrival delay), over 1,411 operations.
Any other layover length: connection checker.
Why MEM → BOS runs late
July 2023 – July 2026
crew, maintenance, boarding and fueling, all within the carrier’s control
airspace and airport capacity, including weather-driven flow control
the inbound aircraft was late, so this flight started late
weather severe enough to stop this flight specifically
Share of the delay minutes US DOT attributed to each cause for MEM → BOS. Only delays of 15 minutes or more are attributed.
Airlines on this route
Carriers with at least 200 flights, by the airline that operated each one.
| Carrier | Flights | On time | Cancelled | Median delay | Severe |
|---|---|---|---|---|---|
| Republic Airways | 1,411 | 91.5% | 1.06% | -13 min | 3.8% |
Flights on this route
Flight numbers with at least 600 operations here and still on the schedule.
| Flight | Scheduled | Operations | On time |
|---|---|---|---|
| YX5604 Republic Airways | 6:10 AM | 670 | 91.0% |
Weekly and seasonal patterns
By day of week
Friday is historically the most reliable day and Monday the least, a gap of 3.0 percentage points.
Reliability over time
July 2023 – July 2026
Over the most recent 12 months (2025-07 to 2026-07), on-time arrivals averaged 91.2% against 90.7% in the 12 months before — broadly unchanged.
Data and methodology
Calculated by FlyerIntel from 1,411 MEM → BOS flight records from the US DOT Bureau of Transportation Statistics, covering July 2023 – July 2026. Late means 15 or more minutes past scheduled arrival; cancelled and diverted flights are left out of on-time rates.
Full methodology · Data sources · Report a problem
Related research: How Long a Layover Needs to Be · Two Airlines on One Route · Best Time of Day to Fly From Major US Airports
Analysis last recomputed