GRR to MDW flight delays & on-time performance
Nonstop flights from Gerald R. Ford International Airport to Chicago Midway International Airport · 137 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at GRR or MDW right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Grand Rapids (GRR) to Chicago (MDW) arrived on time 78% of the time in Aug 2025 – Jul 2026, in line with the national average.
- 0.4% 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 (87% on time); around 6pm did worst (53%).
- Friday was the most reliable day to fly (80% on time) and Sunday the least (76%).
- The largest source of delay minutes was late-arriving aircraft (46%).
Which airline is most on time from GRR 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 | 78% | 0.4% | 11 min | 3.5% | 931 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 6am87%268 flights
- 7am86%70 flights
- 9am56%18 flights
- 12pm86%177 flights
- 1pm95%21 flights
- 4pm70%69 flights
- 5pm72%163 flights
- 6pm53%78 flights
- 7pm64%48 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday77%1.4% cancelled
- Tuesday77%0.0% cancelled
- Wednesday78%0.0% cancelled
- Thursday80%0.7% cancelled
- Friday80%0.0% cancelled
- Saturday78%1.0% cancelled
- Sunday76%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 aircraft46%
- Air traffic control & airport congestion35%
- Airline (crew, maintenance, cleaning, fueling)17%
- Extreme weather2%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather75%
- Air traffic control & airport congestion25%
- Airline (crew, maintenance, cleaning, fueling)0%
- Security0%
GRR to MDW: common questions
- How often are GRR to MDW flights on time?
- 78% 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 Grand Rapids to Chicago cancelled?
- 0.4% of scheduled flights were cancelled (4 of 931).
- How long are typical delays?
- Across all flights the average arrival delay was 11 min (early arrivals count as zero). Flights that were late arrived 45 min behind schedule on average, and 3.5% of flights were an hour or more late.
- How long is taxi time at GRR?
- Flights on this route spent 20 min taxiing from the gate to takeoff on average.
Related routes
Return trip: MDW to GRR — 75% on time
More flights from Grand Rapids
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: GRR → MDW, nonstop flights by US airlines that report to the DOT. How we calculate this.