Route · IND → SFO · 2020–2025 BTS data
Indianapolis to San Francisco
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), IND to SFO (Indianapolis to San Francisco) ranks #3994 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 84.2%
- On-time
- +5.2 pts
- vs US avg
- 77 min
- Delay when late
- 1,717
- Flights
- #3994 of 4927
- Corpus placement
Cancelled
1.4%
Best Month
May 2025 89%
Worst Month
Apr 2025 76%
Distance
1,943 mi
Carriers
1
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 42 | 13 | 0 | 0 | UA |
| Nov 2025 | 50 | 9 | 2 | 0 | UA |
| Oct 2025 | 49 | 5 | 0 | 0 | UA |
| Sep 2025 | 34 | 3 | 0 | 0 | UA |
| Aug 2025 | 43 | 8 | 0 | 0 | UA |
| Jul 2025 | 54 | 9 | 0 | 0 | UA |
| Jun 2025 | 52 | 6 | 1 | 1 | UA |
| May 2025 | 53 | 6 | 2 | 0 | UA |
| Apr 2025 | 51 | 12 | 2 | 0 | UA |
| Mar 2025 | 32 | 6 | 0 | 0 | UA |
| Jan 2025 | 31 | 3 | 0 | 0 | UA |
| Dec 2024 | 33 | 9 | 0 | 0 | UA |
| Nov 2024 | 48 | 16 | 1 | 0 | UA |
| Oct 2024 | 48 | 4 | 1 | 0 | UA |
| Sep 2024 | 47 | 4 | 0 | 0 | UA |
| Aug 2024 | 38 | 3 | 0 | 0 | UA |
| Jul 2024 | 31 | 3 | 1 | 0 | UA |
| May 2024 | 33 | 8 | 0 | 0 | UA |
| Apr 2024 | 30 | 3 | 1 | 0 | UA |
| Mar 2024 | 31 | 2 | 0 | 0 | UA |
| Jan 2024 | 31 | 6 | 1 | 0 | UA |
| Dec 2023 | 31 | 4 | 1 | 0 | UA |
| Nov 2023 | 30 | 2 | 0 | 0 | UA |
| Oct 2023 | 31 | 6 | 0 | 0 | UA |
IND–SFO seasonal on-time pattern
Best: September (92.2%) · weakest: December (73.7%)
Strongest calendar month
September
92.2% on-time · ~35 flights/mo
Busiest calendar month
May
~38 flights/mo avg
Weakest calendar month
December
73.7% on-time · ~33 flights/mo
Cancellation Rate
1.4%
13 of 953 flights
Diversion Rate
0.1%
1 of 953 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
IND - Indianapolis
Full on-time, delay-cause, and seasonal performance for Indianapolis, IN.
IND on-time profileSFO - San Francisco
Full on-time, delay-cause, and seasonal performance for San Francisco, CA.
SFO on-time profileCompare the two airports
See IND and SFO side by side on delays, cancellations, and reliability.
Compare IND vs SFOOrigin-hub reliability standing
Mid-pack among IND departures
From IND, this corridor sits with 20 other 75–85% on-time routes out of 32 tracked departures, not the hub's reliability leaders (12 at ≥85%) and not the softest ( 0 below 75%). Destination: San Francisco · fleet on-time rank #1514 of 4927.
Similar routes
Other BTS-tracked routes with comparable performance or trip length to IND–SFO.
Routes with a similar on-time rate
What the Data Says About IND to SFO
Bureau of Transportation Statistics records show Indianapolis to San Francisco (IND to SFO) running a 84.2% on-time rate over 1,717 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 76.7 minutes. The 1,943-mile corridor is served by 1 carrier, and over the last 24 months 1.4% of 953 flights were cancelled, 0.1% diverted.
Monthly performance varies moderately here: May 2025 was the strongest month at 89% on-time versus Apr 2025 at 76%, a 12-point difference.
On the multi-year calendar, IND–SFO peaks in September at 92.2% on-time while May carries the heaviest traffic (~38 flights per month) ; the softest month is December at 73.7%, a 18.5-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does IND to SFO rank among US routes by traffic? ▼
How often are flights delayed from IND to SFO? ▼
What is the cancellation rate for IND to SFO? ▼
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Airports on this route
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 IND–SFO data
IND–SFO runs 5.2 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.
- Compare IND and SFO airport profiles: delay causes and top routes differ even on the same corridor. IND airport
- If your dates flex, September (92.2% on-time) beats December (73.7%) on this corridor. Seasonal chart
- 4 other routes post a similar 84.2% 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.
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.