BZN to MDW flight delays & on-time performance
Nonstop flights from Bozeman Yellowstone International Airport to Chicago Midway International Airport · 1,198 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at BZN or MDW right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Bozeman (BZN) to Chicago (MDW) arrived on time 86% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0% were cancelled, and 3% arrived an hour or more late.
- Southwest Airlines is the only airline reporting nonstop flights on this route.
- Departures scheduled around 6am did best (100% on time); around 12pm did worst (83%).
- Tuesday was the most reliable day to fly (100% on time) and Sunday the least (65%).
- The largest source of delay minutes was late-arriving aircraft (64%).
Which airline is most on time from BZN to MDW?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Southwest Airlines | 86% | 0.0% | 7 min | 2.5% | 120 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 6am100%18 flights
- 7am88%26 flights
- 8am95%19 flights
- 11am83%24 flights
- 12pm83%18 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday82%0.0% cancelled
- Tuesday100%0.0% cancelled
- Wednesday100%0.0% cancelled
- Thursday88%0.0% cancelled
- Friday89%0.0% cancelled
- Saturday76%0.0% cancelled
- Sunday65%0.0% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft64%
- Airline (crew, maintenance, cleaning, fueling)20%
- Air traffic control & airport congestion16%
- Extreme weather0%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
No cancellation causes recorded in this period.
BZN to MDW: common questions
- How often are BZN to MDW flights on time?
- 86% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Bozeman to Chicago cancelled?
- 0.0% of scheduled flights were cancelled (0 of 120).
- How long are typical delays?
- Across all flights the average arrival delay was 7 min (early arrivals count as zero). Flights that were late arrived 41 min behind schedule on average, and 2.5% of flights were an hour or more late.
- How long is taxi time at BZN?
- Flights on this route spent 13 min taxiing from the gate to takeoff on average.
Related routes
Return trip: MDW to BZN — 71% on time
More flights from Bozeman
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: BZN → MDW, nonstop flights by US airlines that report to the DOT. How we calculate this.