PlainFlights

Route · DEN → BIS · 2020–2025 BTS data

Denver to Bismarck/Mandan

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), DEN to BIS (Denver to Bismarck/Mandan) ranks #1838 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

80.4%
On-time
+1.4 pts
vs US avg
82 min
Delay when late
6,863
Flights
#1838 of 4927
Corpus placement

Cancelled

1.4%

Best Month

Oct 2024 95%

Worst Month

Jan 2025 61%

Distance

516 mi

Carriers

3

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 122 37 0 2 OO
Nov 2025 116 9 3 0 OO
Oct 2025 120 22 0 1 OO
Sep 2025 137 29 0 0 OO
Aug 2025 152 53 1 0 OO
Jul 2025 154 48 2 2 OO
Jun 2025 150 46 4 2 OO
May 2025 134 29 2 1 OO
Apr 2025 120 29 2 0 OO
Mar 2025 124 20 0 0 OO
Feb 2025 112 34 7 0 OO
Jan 2025 124 48 0 0 OO
Dec 2024 125 18 0 1 OO
Nov 2024 118 30 5 0 OO
Oct 2024 124 6 0 0 OO
Sep 2024 120 26 0 1 OO
Aug 2024 107 26 0 1 OO
Jul 2024 93 23 0 0 OO
Jun 2024 94 20 1 1 OO
May 2024 123 24 1 0 OO
Apr 2024 90 20 1 0 OO
Mar 2024 93 10 4 0 OO
Feb 2024 87 24 0 1 OO
Jan 2024 93 16 6 0 OO

DEN–BIS seasonal on-time pattern

Best: November (87.7%) · weakest: February (72.1%)

70%75%80%85%90% JanFebMarAprMayJunJulAugSepOctNovDec 81.9%

Strongest calendar month

November

87.7% on-time · ~99 flights/mo

Busiest calendar month

August

~110 flights/mo avg

Weakest calendar month

February

72.1% on-time · ~75 flights/mo

Cancellation Rate

1.4%

39 of 2,832 flights

Diversion Rate

0.5%

13 of 2,832 flights

Explore origin & destination

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

DEN - Denver

Full on-time, delay-cause, and seasonal performance for Denver, CO.

DEN on-time profile

BIS - Bismarck/Mandan

Full on-time, delay-cause, and seasonal performance for Bismarck/Mandan, ND.

BIS on-time profile

Compare the two airports

See DEN and BIS side by side on delays, cancellations, and reliability.

Compare DEN vs BIS

Origin-hub reliability standing

Mid-pack among DEN departures

From DEN, this corridor sits with 133 other 75–85% on-time routes out of 168 tracked departures, not the hub's reliability leaders (8 at ≥85%) and not the softest ( 27 below 75%). Destination: Bismarck/Mandan · fleet on-time rank #2971 of 4927.

What the Data Says About DEN to BIS

6,863 tracked flights put the DEN to BIS pairing (Denver to Bismarck/Mandan) at a 80.4% on-time rate, squarely in line with the wider network. Delays that do occur run 82.4 minutes on average. Across the 516-mile route and its 3 carriers, the trailing 24 months show 1.4% cancelled and 0.5% diverted (2,832 flights sampled).

The monthly split is wide on this route: Oct 2024 posted the strongest performance at 95% on-time, while Jan 2025 came in at just 61% - a 34-point swing worth factoring into travel timing.

On the multi-year calendar, DEN–BIS peaks in November at 87.7% on-time while August carries the heaviest traffic (~110 flights per month) ; the softest month is February at 72.1%, a 15.6-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does DEN to BIS rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, DEN to BIS ranks #1838 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 DEN to BIS? ▼
Flights from Denver to Bismarck/Mandan have a 80.4% on-time rate based on 6,863 flights. The average delay is 82.4 minutes. The best recent month was Oct 2024 with 95% on-time.
What is the cancellation rate for DEN to BIS? ▼
Over the last 24 months, 1.4% of flights on this route were cancelled (39 of 2,832 flights) and 0.5% were diverted.
How far is the flight from DEN to BIS? ▼
The flight distance from Denver (DEN) to Bismarck/Mandan (BIS) is approximately 516 miles. This route is served by 3 carriers.
When is the best time to fly from DEN to BIS? ▼
The best recent month for on-time performance was Oct 2024 (95% on-time). The worst was Jan 2025 (61% on-time). Consider booking during months with historically better performance.

Airports on this route

DEN Airport

Denver
BIS Airport

Bismarck/Mandan
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 DEN–BIS data

DEN–BIS is mid-pack at 80.4% on-time; month and carrier mix move more than the corridor headline.

  • Compare DEN and BIS airport profiles: delay causes and top routes differ even on the same corridor. DEN airport
  • If your dates flex, November (87.7% on-time) beats February (72.1%) on this corridor. Seasonal chart
  • 4 other routes post a similar 80.4% 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.