PlainFlights

Route · MFR → SFO · 2020–2025 BTS data

Medford to San Francisco

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), MFR to SFO (Medford to San Francisco) ranks #2245 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

83.8%
On-time
+4.8 pts
vs US avg
94 min
Delay when late
5,577
Flights
#2245 of 4927
Corpus placement

Cancelled

1.1%

Best Month

Sep 2024 89%

Worst Month

Feb 2024 52%

Distance

329 mi

Carriers

3

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 85 30 1 0 UA,OO
Nov 2025 85 22 1 0 OO,UA
Oct 2025 90 27 0 0 OO,UA
Sep 2025 89 22 0 0 UA,OO
Aug 2025 93 10 0 0 OO,UA
Jul 2025 92 17 0 0 OO,UA
Jun 2025 83 16 1 0 OO,UA
May 2025 89 13 0 0 OO,UA
Apr 2025 90 14 0 0 OO,UA
Mar 2025 80 12 1 0 OO,UA
Feb 2025 57 9 2 0 OO,UA
Jan 2025 68 11 1 0 OO,UA
Dec 2024 91 12 4 1 OO,UA
Nov 2024 86 20 2 0 OO,UA
Oct 2024 89 11 1 0 UA,OO
Sep 2024 85 9 0 0 OO,UA
Aug 2024 73 10 1 0 OO,UA
Jul 2024 62 16 1 0 OO,UA
Jun 2024 60 20 1 0 OO,UA
May 2024 62 22 1 0 OO,UA
Apr 2024 60 18 1 0 OO,UA
Mar 2024 68 29 1 0 OO,UA
Feb 2024 73 35 1 0 OO,UA
Jan 2024 70 13 0 0 OO,UA

MFR–SFO seasonal on-time pattern

Best: September (88.3%) · weakest: December (74.4%)

70%75%80%85%90% JanFebMarAprMayJunJulAugSepOctNovDec 74.4%

Strongest calendar month

September

88.3% on-time · ~81 flights/mo

Busiest calendar month

July

~82 flights/mo avg

Weakest calendar month

December

74.4% on-time · ~82 flights/mo

Cancellation Rate

1.1%

21 of 1,880 flights

Diversion Rate

0.1%

1 of 1,880 flights

Origin-hub reliability standing

Mid-pack among MFR departures

From MFR, this corridor sits with 1 other 75–85% on-time routes out of 7 tracked departures, not the hub's reliability leaders (6 at ≥85%) and not the softest ( 0 below 75%). Destination: San Francisco · fleet on-time rank #1659 of 4927.

What the Data Says About MFR to SFO

Bureau of Transportation Statistics records show Medford to San Francisco (MFR to SFO) running a 83.8% on-time rate over 5,577 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 93.7 minutes. The 329-mile corridor is served by 3 carriers, and over the last 24 months 1.1% of 1,880 flights were cancelled, 0.1% diverted.

The monthly split is wide on this route: Sep 2024 posted the strongest performance at 89% on-time, while Feb 2024 came in at just 52% - a 37-point swing worth factoring into travel timing.

On the multi-year calendar, MFR–SFO peaks in September at 88.3% on-time while July carries the heaviest traffic (~82 flights per month) ; the softest month is December at 74.4%, a 13.9-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does MFR to SFO rank among US routes by traffic?
According to PlainFlights' route traffic ranking, MFR to SFO ranks #2245 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 MFR to SFO?
Flights from Medford to San Francisco have a 83.8% on-time rate based on 5,577 flights. The average delay is 93.7 minutes. The best recent month was Sep 2024 with 89% on-time.
What is the cancellation rate for MFR to SFO?
Over the last 24 months, 1.1% of flights on this route were cancelled (21 of 1,880 flights) and 0.1% were diverted.
How far is the flight from MFR to SFO?
The flight distance from Medford (MFR) to San Francisco (SFO) is approximately 329 miles. This route is served by 3 carriers.
When is the best time to fly from MFR to SFO?
The best recent month for on-time performance was Sep 2024 (89% on-time). The worst was Feb 2024 (52% on-time). Consider booking during months with historically better performance.

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.

Using MFR–SFO data

MFR–SFO runs 4.8 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.

  • Compare MFR and SFO airport profiles: delay causes and top routes differ even on the same corridor. MFR airport
  • If your dates flex, September (88.3% on-time) beats December (74.4%) on this corridor. Seasonal chart
  • 4 other routes post a similar 83.8% 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.