DEN to JMS flight delays
Denver, CO (DEN) Jamestown, ND (JMS) · 573 miles
626 flights · January 2025 – August 2026 · US Bureau of Transportation Statistics
85.41%
Arrived on time
Within 15 minutes of schedule
1.28%
Cancelled
Share of scheduled flights
65 min
When late, late by
Average across delayed arrivals
10 min
Delay per flight
Averaged over every flight flown
What the record says about this route
The season swings this route hard. In November it ran 19.5 points more punctual than in December — a difference bigger than the one between the best and worst airlines on most routes. If the date is flexible, it is worth more than the carrier.
The two directions do not behave alike. JMS to DEN arrives on time 7.3 points less often than the outbound. Delay accumulates through the flying day, so whichever direction is scheduled later tends to carry the worse record — which is an argument for booking the morning departure if the choice exists.
This route does better than its own airport. Departures from DEN overall run 9.5 points less punctual than this particular one — so whatever congestion DEN has, this route is largely escaping it.
Only SkyWest Airlines flies this route in the published record, so there is no choice to weigh — the route's figures and the airline's are the same figures.
Which airline should you fly on this route?
Over January 2025 – August 2026, SkyWest Airlines arrived on time most often on DEN to JMS. Flights ran closest to schedule in November and worst in December.
Every airline on DEN to JMS
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| SkyWest Airlines | 626 | 85.41% | 1.28% | 65 min | B |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
JMS to DEN Jamestown back to Denver 78.07% on time COther routes from Denver
Common questions
Are flights from Denver to Jamestown usually delayed?
85.41% of flights on the DEN to JMS route arrived within 15 minutes of schedule, so roughly 1 in every ten arrived late. That is better than the average route in this record.
Which airlines fly from Denver to Jamestown?
Only SkyWest Airlines appears in the published record on this route, with 626 flights and 85.41% arriving on time.
How often are DEN to JMS flights cancelled?
1.28% of scheduled flights did not operate — about 13 in every thousand. That is in the normal range.
What is the best month to fly Denver to Jamestown?
November, when 96% of flights arrived on time. The worst was December at 76.5%.
When DEN to JMS flights are late, how late are they?
About 65 minutes on average across the flights that arrived more than 15 minutes behind schedule.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on DEN to JMS during January 2025 – August 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →