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Route · CLE → BOS · 2020–2025 BTS data

Cleveland to Boston

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), CLE to BOS (Cleveland to Boston) ranks #1360 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

83.1%
On-time
+4.1 pts
vs US avg
78 min
Delay when late
8,891
Flights
#1360 of 4927
Corpus placement

Cancelled

1.3%

Best Month

Apr 2025 95%

Worst Month

Dec 2025 69%

Distance

563 mi

Carriers

17

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 140 44 6 0 YX,F9,B6
Nov 2025 158 30 2 0 F9,B6,YX
Oct 2025 179 43 0 0 B6,YX,F9
Sep 2025 170 49 5 0 YX,F9,B6
Aug 2025 175 16 2 0 YX,F9,B6
Jul 2025 178 43 5 0 B6,YX,F9
Jun 2025 169 39 0 2 B6,YX,F9
May 2025 163 28 1 0 B6,YX,F9
Apr 2025 133 7 0 0 YX,B6
Mar 2025 119 15 0 0 B6,YX
Feb 2025 93 20 3 0 B6,YX
Jan 2025 92 23 0 0 B6,YX
Dec 2024 140 30 2 0 B6,YX
Nov 2024 144 17 0 0 YX,B6
Oct 2024 145 11 0 0 YX,B6
Sep 2024 144 15 0 0 YX,B6
Aug 2024 170 28 6 0 B6,YX
Jul 2024 166 40 0 0 B6,YX
Jun 2024 166 28 3 1 B6,YX
May 2024 171 23 0 0 B6,YX
Apr 2024 131 30 2 0 B6,YX
Mar 2024 114 24 0 1 B6,YX
Feb 2024 108 14 1 0 B6,YX
Jan 2024 113 30 7 0 B6,YX

CLE–BOS seasonal on-time pattern

Best: March (87.4%) · weakest: January (78.9%)

78%80%82%84%86%88% JanFebMarAprMayJunJulAugSepOctNovDec 80.2%

Strongest calendar month

March

87.4% on-time · ~119 flights/mo

Busiest calendar month

September

~155 flights/mo avg

Weakest calendar month

January

78.9% on-time · ~112 flights/mo

Cancellation Rate

1.3%

45 of 3,481 flights

Diversion Rate

0.1%

4 of 3,481 flights

Explore origin & destination

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

CLE - Cleveland

Full on-time, delay-cause, and seasonal performance for Cleveland, OH.

CLE on-time profile

BOS - Boston

Full on-time, delay-cause, and seasonal performance for Boston, MA.

BOS on-time profile

Compare the two airports

See CLE and BOS side by side on delays, cancellations, and reliability.

Compare CLE vs BOS

Origin-hub reliability standing

Mid-pack among CLE departures

From CLE, this corridor sits with 17 other 75–85% on-time routes out of 30 tracked departures, not the hub's reliability leaders (12 at ≥85%) and not the softest ( 1 below 75%). Destination: Boston · fleet on-time rank #1906 of 4927.

What the Data Says About CLE to BOS

Bureau of Transportation Statistics records show Cleveland to Boston (CLE to BOS) running a 83.1% on-time rate over 8,891 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 78.1 minutes. The 563-mile corridor is served by 17 carriers, and over the last 24 months 1.3% of 3,481 flights were cancelled, 0.1% diverted.

The monthly split is wide on this route: Apr 2025 posted the strongest performance at 95% on-time, while Dec 2025 came in at just 69% - a 26-point swing worth factoring into travel timing.

On the multi-year calendar, CLE–BOS peaks in March at 87.4% on-time while September carries the heaviest traffic (~155 flights per month) ; the softest month is January at 78.9%, a 8.5-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does CLE to BOS rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, CLE to BOS ranks #1360 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 CLE to BOS? ▼
Flights from Cleveland to Boston have a 83.1% on-time rate based on 8,891 flights. The average delay is 78.1 minutes. The best recent month was Apr 2025 with 95% on-time.
What is the cancellation rate for CLE to BOS? ▼
Over the last 24 months, 1.3% of flights on this route were cancelled (45 of 3,481 flights) and 0.1% were diverted.
How far is the flight from CLE to BOS? ▼
The flight distance from Cleveland (CLE) to Boston (BOS) is approximately 563 miles. This route is served by 17 carriers.
When is the best time to fly from CLE to BOS? ▼
The best recent month for on-time performance was Apr 2025 (95% on-time). The worst was Dec 2025 (69% on-time). Consider booking during months with historically better performance.

Airports on this route

CLE Airport

Cleveland
BOS Airport

Boston
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 CLE–BOS data

CLE–BOS runs 4.1 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.

  • Compare CLE and BOS airport profiles: delay causes and top routes differ even on the same corridor. CLE airport
  • If your dates flex, March (87.4% on-time) beats January (78.9%) on this corridor. Seasonal chart
  • 4 other routes post a similar 83.1% 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.