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Route · BDL → MDW · 2020–2025 BTS data

Hartford to Chicago

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), BDL to MDW (Hartford to Chicago) ranks #3010 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

85.2%
On-time
+6.2 pts
vs US avg
69 min
Delay when late
3,741
Flights
#3010 of 4927
Corpus placement

Cancelled

0.8%

Best Month

Nov 2024 96%

Worst Month

Jul 2025 73%

Distance

776 mi

Carriers

1

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 60 14 0 0 WN
Nov 2025 56 8 2 0 WN
Oct 2025 79 13 0 0 WN
Sep 2025 73 4 0 0 WN
Aug 2025 74 9 0 0 WN
Jul 2025 84 23 3 1 WN
Jun 2025 78 13 0 0 WN
May 2025 57 11 0 0 WN
Apr 2025 53 2 0 0 WN
Mar 2025 45 4 0 0 WN
Feb 2025 41 7 0 0 WN
Jan 2025 39 3 0 0 WN
Dec 2024 60 8 0 1 WN
Nov 2024 56 2 0 0 WN
Oct 2024 72 4 0 0 WN
Sep 2024 85 5 0 0 WN
Aug 2024 87 12 1 2 WN
Jul 2024 85 16 1 1 WN
Jun 2024 78 16 0 0 WN
May 2024 58 13 0 0 WN
Apr 2024 55 5 0 0 WN
Mar 2024 51 10 0 0 WN
Feb 2024 47 4 0 0 WN
Jan 2024 58 9 5 0 WN

BDL–MDW seasonal on-time pattern

Best: November (93.0%) · weakest: July (76.1%)

75%80%85%90%95% JanFebMarAprMayJunJulAugSepOctNovDec 82.9%

Strongest calendar month

November

93.0% on-time · ~53 flights/mo

Busiest calendar month

August

~68 flights/mo avg

Weakest calendar month

July

76.1% on-time · ~63 flights/mo

Cancellation Rate

0.8%

12 of 1,531 flights

Diversion Rate

0.3%

5 of 1,531 flights

Explore origin & destination

On-time and delay data for the airports this route connects.

BDL - Hartford

Full on-time, delay-cause, and seasonal performance for Hartford, CT.

BDL on-time profile

MDW - Chicago

Full on-time, delay-cause, and seasonal performance for Chicago, IL.

MDW on-time profile

Compare the two airports

See BDL and MDW side by side on delays, cancellations, and reliability.

Compare BDL vs MDW

Origin-hub reliability standing

Among BDL's stronger departures

BDL → MDW posts a 85.2% on-time rate, landing in the ≥85% band with 7 of 22 BTS-tracked routes leaving Hartford. The same hub also shows 13 mid-band and 2 challenged departures · fleet-wide on-time rank #1142 of 4927 (highest on-time = #1).

What the Data Says About BDL to MDW

Hartford to Chicago (BDL to MDW) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 85.2% on-time rate across 3,741 flights, with delays that do happen averaging 69.0 minutes. The corridor runs roughly 776 miles and is served by 1 carrier. Over the most recent 24 months, 12 of 1,531 flights were cancelled (0.8%) and 5 diverted (0.3%).

The monthly split is wide on this route: Nov 2024 posted the strongest performance at 96% on-time, while Jul 2025 came in at just 73% - a 24-point swing worth factoring into travel timing.

On the multi-year calendar, BDL–MDW peaks in November at 93.0% on-time while August carries the heaviest traffic (~68 flights per month) ; the softest month is July at 76.1%, a 16.9-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does BDL to MDW rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, BDL to MDW ranks #3010 of 4927 tracked domestic routes by total flights (most flights = #1). That ordinal matches our busiest-routes listing (total_flights DESC). See /methodology#corpus-placement for the exact sort basis.
How often are flights delayed from BDL to MDW? ▼
Flights from Hartford to Chicago have a 85.2% on-time rate based on 3,741 flights. The average delay is 69.0 minutes. The best recent month was Nov 2024 with 96% on-time.
What is the cancellation rate for BDL to MDW? ▼
Over the last 24 months, 0.8% of flights on this route were cancelled (12 of 1,531 flights) and 0.3% were diverted.
How far is the flight from BDL to MDW? ▼
The flight distance from Hartford (BDL) to Chicago (MDW) is approximately 776 miles. This route is served by 1 carrier.
When is the best time to fly from BDL to MDW? ▼
The best recent month for on-time performance was Nov 2024 (96% on-time). The worst was Jul 2025 (73% on-time). Consider booking during months with historically better performance.

Airports on this route

BDL Airport

Hartford
MDW Airport

Chicago
Data source

Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.

Read our methodology - how this data is sourced, computed, and verified.

Using BDL–MDW data

BDL–MDW runs 6.2 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.

  • Compare BDL and MDW airport profiles: delay causes and top routes differ even on the same corridor. BDL airport
  • If your dates flex, November (93.0% on-time) beats July (76.1%) on this corridor. Seasonal chart
  • 4 other routes post a similar 85.2% on-time rate; compare before you commit to this pairing. Similar routes

On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.