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1,345 km · Domestic

Chicago Midway (MDW) – Manchester-Boston (MHT)

In July 2026, 123 flights operated between Chicago Midway and Manchester-Boston (both directions), and 70.7% left on time, according to the US BTS.

Official · July 2026 according to the US BTS only airlines required to report on-time data to the US DOT

Flights per month

Only complete months are shown. A month appears once the source has published every day of it.

The most recent periods19 periods
PeriodFlights operated 2025Flights operated 2026Change vs last year
January5654▼ 3.6%
February5254▲ 3.8%
March5460▲ 11.1%
April5886▲ 48.3%
May6298▲ 58.1%
June105115▲ 9.5%
July110123▲ 11.8%
August109––
September112––
October113–in progress
November53––
December58––
Year to date (Jan–Jul)497590▲ 18.7%

On-time departures by month

Departures within 15 minutes of schedule.

The most recent periods19 periods
PeriodOn-time departures 2025On-time departures 2026Change vs last year
January83.9%81.5%▼ 2.9%
February88.5%85.2%▼ 3.7%
March85.2%78.3%▼ 8.1%
April86.2%81.4%▼ 5.6%
May80.6%67.3%▼ 16.5%
June73.3%70.4%▼ 4.0%
July74.5%70.7%▼ 5.1%
August74.3%––
September92.0%––
October85.8%–in progress
November79.2%––
December70.7%––
Year-to-date average (Jan–Jul)81.7%76.4%▼ 6.5%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January00–
February00–
March01–
April00–
May00–
June01–
July41▼ 75.0%
August3––
September0––
October1–in progress
November3––
December0––
Year to date (Jan–Jul)43▼ 25.0%

By direction

MDW → MHT

Scheduled flights
872
Flights operated
863
Cancelled
9 · 1.0%
On-time departures
73.9%

MHT → MDW

Scheduled flights
872
Flights operated
866
Cancelled
6 · 0.7%
On-time departures
85.6%

MDW → MHT and MHT → MDW counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Southwest Airlines WN 1,744 100.0% 79.8% 15

Shares are of scheduled flights in the period shown. Codeshare flights are counted once, under the operating airline.

Flight timing & delays

Historical departures, grouped by the scheduled local time at the departure airport. These are recorded outcomes, not a forecast for your flight.

Times are local to the departure airport of each flight; both directions are combined.

US domestic sectors recorded by BTS

Source: the US BTS · Oct 12, 2024 → Jul 31, 2026

Lowest average delay07:00–08:00-0.9min · 262 recorded · 261 measured
Gap to highest-delay hour30.1min07:00 ↔ 19:00
Recorded flights1,744MDW–MHT

Departure hour

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · Fewer than 200 measured departures · 87 recorded · 86 measured · Source: the US BTS 06:00 · Fewer than 200 measured departures · 158 recorded · 157 measured · Source: the US BTS 07:00 · 95.0% · 262 recorded · 261 measured · Source: the US BTS 08:00 · Fewer than 200 measured departures · 2 recorded · 2 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 14 recorded · 14 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 29 recorded · 29 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 91 recorded · 91 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 96 recorded · 96 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 162 recorded · 162 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 40 recorded · 40 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 37 recorded · 37 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 5 recorded · 5 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 183 recorded · 182 measured · Source: the US BTS 18:00 · 62.6% · 257 recorded · 254 measured · Source: the US BTS 19:00 · 59.7% · 224 recorded · 221 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 85 recorded · 81 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 5 recorded · 4 measured · Source: the US BTS 22:00 · Fewer than 200 measured departures · 7 recorded · 7 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Average departure delay Partial coverage: only airlines that report on-time data to the US DOT
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · Fewer than 200 measured departures · 87 recorded · 86 measured · Source: the US BTS 06:00 · Fewer than 200 measured departures · 158 recorded · 157 measured · Source: the US BTS 07:00 · -0.9 min · 262 recorded · 261 measured · Source: the US BTS 08:00 · Fewer than 200 measured departures · 2 recorded · 2 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 14 recorded · 14 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 29 recorded · 29 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 91 recorded · 91 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 96 recorded · 96 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 162 recorded · 162 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 40 recorded · 40 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 37 recorded · 37 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 5 recorded · 5 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 183 recorded · 182 measured · Source: the US BTS 18:00 · 18.9 min · 257 recorded · 254 measured · Source: the US BTS 19:00 · 29.2 min · 224 recorded · 221 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 85 recorded · 81 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 5 recorded · 4 measured · Source: the US BTS 22:00 · Fewer than 200 measured departures · 7 recorded · 7 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · 87 · 87 recorded · 86 measured · Source: the US BTS 06:00 · 158 · 158 recorded · 157 measured · Source: the US BTS 07:00 · 262 · 262 recorded · 261 measured · Source: the US BTS 08:00 · 2 · 2 recorded · 2 measured · Source: the US BTS 09:00 · 14 · 14 recorded · 14 measured · Source: the US BTS 10:00 · 29 · 29 recorded · 29 measured · Source: the US BTS 11:00 · 91 · 91 recorded · 91 measured · Source: the US BTS 12:00 · 96 · 96 recorded · 96 measured · Source: the US BTS 13:00 · 162 · 162 recorded · 162 measured · Source: the US BTS 14:00 · 40 · 40 recorded · 40 measured · Source: the US BTS 15:00 · 37 · 37 recorded · 37 measured · Source: the US BTS 16:00 · 5 · 5 recorded · 5 measured · Source: the US BTS 17:00 · 183 · 183 recorded · 182 measured · Source: the US BTS 18:00 · 257 · 257 recorded · 254 measured · Source: the US BTS 19:00 · 224 · 224 recorded · 221 measured · Source: the US BTS 20:00 · 85 · 85 recorded · 81 measured · Source: the US BTS 21:00 · 5 · 5 recorded · 4 measured · Source: the US BTS 22:00 · 7 · 7 recorded · 7 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

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View the figures
Departure hourOn-time departuresAverage departure delayWith departure timeRecorded flights
00:00No observations———
01:00No observations———
02:00No observations———
03:00No observations———
04:00No observations———
05:00Fewer than 200 measured departures—8687
06:00Fewer than 200 measured departures—157158
07:0095.0%-0.9 min261262
08:00Fewer than 200 measured departures—22
09:00Fewer than 200 measured departures—1414
10:00Fewer than 200 measured departures—2929
11:00Fewer than 200 measured departures—9191
12:00Fewer than 200 measured departures—9696
13:00Fewer than 200 measured departures—162162
14:00Fewer than 200 measured departures—4040
15:00Fewer than 200 measured departures—3737
16:00Fewer than 200 measured departures—55
17:00Fewer than 200 measured departures—182183
18:0062.6%18.9 min254257
19:0059.7%29.2 min221224
20:00Fewer than 200 measured departures—8185
21:00Fewer than 200 measured departures—45
22:00Fewer than 200 measured departures—77
23:00No observations———

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 78.0% · 268 recorded · 264 measured · Source: the US BTS Tuesday · 81.3% · 252 recorded · 251 measured · Source: the US BTS Wednesday · 84.9% · 252 recorded · 252 measured · Source: the US BTS Thursday · 77.7% · 272 recorded · 269 measured · Source: the US BTS Friday · 80.4% · 268 recorded · 265 measured · Source: the US BTS Saturday · Fewer than 200 measured departures · 184 recorded · 182 measured · Source: the US BTS Sunday · 74.8% · 248 recorded · 246 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Average departure delay Partial coverage: only airlines that report on-time data to the US DOT
Monday · 14.8 min · 268 recorded · 264 measured · Source: the US BTS Tuesday · 6.0 min · 252 recorded · 251 measured · Source: the US BTS Wednesday · 4.4 min · 252 recorded · 252 measured · Source: the US BTS Thursday · 10.5 min · 272 recorded · 269 measured · Source: the US BTS Friday · 10.5 min · 268 recorded · 265 measured · Source: the US BTS Saturday · Fewer than 200 measured departures · 184 recorded · 182 measured · Source: the US BTS Sunday · 15.6 min · 248 recorded · 246 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Monday · 268 · 268 recorded · 264 measured · Source: the US BTS Tuesday · 252 · 252 recorded · 251 measured · Source: the US BTS Wednesday · 252 · 252 recorded · 252 measured · Source: the US BTS Thursday · 272 · 272 recorded · 269 measured · Source: the US BTS Friday · 268 · 268 recorded · 265 measured · Source: the US BTS Saturday · 184 · 184 recorded · 182 measured · Source: the US BTS Sunday · 248 · 248 recorded · 246 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday78.0%14.8 min264268
Tuesday81.3%6.0 min251252
Wednesday84.9%4.4 min252252
Thursday77.7%10.5 min269272
Friday80.4%10.5 min265268
SaturdayFewer than 200 measured departures—182184
Sunday74.8%15.6 min246248

Month of year

Months combine the same calendar month across the years shown; this is a seasonal pattern, not a monthly time series.

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Jan · Fewer than 200 measured departures · 110 recorded · 110 measured · Source: the US BTS Feb · Fewer than 200 measured departures · 106 recorded · 106 measured · Source: the US BTS Mar · Fewer than 200 measured departures · 115 recorded · 114 measured · Source: the US BTS Apr · Fewer than 200 measured departures · 144 recorded · 144 measured · Source: the US BTS May · Fewer than 200 measured departures · 160 recorded · 160 measured · Source: the US BTS Jun · 71.8% · 221 recorded · 220 measured · Source: the US BTS Jul · 72.5% · 238 recorded · 233 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 112 recorded · 109 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 112 recorded · 112 measured · Source: the US BTS Oct · Fewer than 200 measured departures · 188 recorded · 187 measured · Source: the US BTS Nov · Fewer than 200 measured departures · 118 recorded · 115 measured · Source: the US BTS Dec · Fewer than 200 measured departures · 120 recorded · 119 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Average departure delay Partial coverage: only airlines that report on-time data to the US DOT
Jan · Fewer than 200 measured departures · 110 recorded · 110 measured · Source: the US BTS Feb · Fewer than 200 measured departures · 106 recorded · 106 measured · Source: the US BTS Mar · Fewer than 200 measured departures · 115 recorded · 114 measured · Source: the US BTS Apr · Fewer than 200 measured departures · 144 recorded · 144 measured · Source: the US BTS May · Fewer than 200 measured departures · 160 recorded · 160 measured · Source: the US BTS Jun · 17.4 min · 221 recorded · 220 measured · Source: the US BTS Jul · 19.6 min · 238 recorded · 233 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 112 recorded · 109 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 112 recorded · 112 measured · Source: the US BTS Oct · Fewer than 200 measured departures · 188 recorded · 187 measured · Source: the US BTS Nov · Fewer than 200 measured departures · 118 recorded · 115 measured · Source: the US BTS Dec · Fewer than 200 measured departures · 120 recorded · 119 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Jan · 110 · 110 recorded · 110 measured · Source: the US BTS Feb · 106 · 106 recorded · 106 measured · Source: the US BTS Mar · 115 · 115 recorded · 114 measured · Source: the US BTS Apr · 144 · 144 recorded · 144 measured · Source: the US BTS May · 160 · 160 recorded · 160 measured · Source: the US BTS Jun · 221 · 221 recorded · 220 measured · Source: the US BTS Jul · 238 · 238 recorded · 233 measured · Source: the US BTS Aug · 112 · 112 recorded · 109 measured · Source: the US BTS Sep · 112 · 112 recorded · 112 measured · Source: the US BTS Oct · 188 · 188 recorded · 187 measured · Source: the US BTS Nov · 118 · 118 recorded · 115 measured · Source: the US BTS Dec · 120 · 120 recorded · 119 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
JanFewer than 200 measured departures—110110
FebFewer than 200 measured departures—106106
MarFewer than 200 measured departures—114115
AprFewer than 200 measured departures—144144
MayFewer than 200 measured departures—160160
Jun71.8%17.4 min220221
Jul72.5%19.6 min233238
AugFewer than 200 measured departures—109112
SepFewer than 200 measured departures—112112
OctFewer than 200 measured departures—187188
NovFewer than 200 measured departures—115118
DecFewer than 200 measured departures—119120

Delay and on-time rates need at least 200 measured departures per bucket. Smaller samples remain visible in the flight-count chart. An empty slot means no observations, not zero flights.

Recorded outcomes

  • On time 79.1% 1,379
  • Delayed >15 min 20.1% 350
  • Cancelled 0.9% 15
  • Missing departure time 0.0% 0

All recorded flights with a known scheduled local time, counted once. Missing actual times are shown separately.

On time means departing no more than 15 minutes after schedule. Cancelled flights and flights missing departure times are excluded from the on-time rate and average delay.

Flight numbers on this route

23
23 of 23
Flight numbersBy direction DeparturesOn time
WN2310 MDW → MHT 103 89.2%
WN3692 MHT → MDW 101 86.1%
WN1331 MDW → MHT 61 58.6%
WN3930 MHT → MDW 61 100.0%
WN3804 MHT → MDW 59 91.4%
WN2212 MDW → MHT 57 86.0%
WN2732 MHT → MDW 57 96.5%
WN4250 MDW → MHT 57 28.6%
WN4974 MHT → MDW 53 96.2%
WN744 MDW → MHT 51 78.4%
WN3721 MDW → MHT 50 79.6%
WN4034 MDW → MHT 50 52.0%
WN3720 MDW → MHT 49 79.6%
WN830 MDW → MHT 49 95.9%
WN261 MDW → MHT 42 66.7%
WN3754 MHT → MDW 42 97.6%
WN4948 MHT → MDW 40 87.5%
WN3314 MDW → MHT 39 76.9%
WN2275 MDW → MHT 36 47.1%
WN2920 MHT → MDW 33 63.6%
WN3823 MHT → MDW 33 78.8%
WN559 MDW → MHT 33 62.5%
WN3223 MHT → MDW 32 75.0%

Flight numbers are the codes sold on tickets. On shared flights one aircraft can carry several of them. Only numbers with at least 30 flights have a page.

Monthly figures
PeriodFlights operated Change vs last yearCancelled On-time departures
July 2026 123 +11.8% 1 70.7%
June 2026 115 +9.5% 1 70.4%
May 2026 98 +58.1% 0 67.3%
April 2026 86 +48.3% 0 81.4%
March 2026 60 +11.1% 1 78.3%
February 2026 54 +3.8% 0 85.2%
January 2026 54 −3.6% 0 81.5%
December 2025 58 −4.9% 0 70.7%
November 2025 53 −14.5% 3 79.2%
October 2025 113 +52.7% 1 85.8%
September 2025 112 0 92.0%
August 2025 109 3 74.3%
July 2025 110 4 74.5%
June 2025 105 0 73.3%
May 2025 62 0 80.6%
April 2025 58 0 86.2%
March 2025 54 0 85.2%
February 2025 52 0 88.5%
January 2025 56 0 83.9%
December 2024 61 1 85.2%
November 2024 62 0 93.5%
October 2024 74 0 89.2%

How to read this chart

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