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Route · GEG → SAN · 2020–2025 BTS data

Spokane to San Diego

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), GEG to SAN (Spokane to San Diego) ranks #4166 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

89.6%
On-time
+10.6 pts
vs US avg
67 min
Delay when late
1,475
Flights
#4166 of 4927
Corpus placement

Cancelled

0.8%

Best Month

N/A

Worst Month

N/A

Distance

1,027 mi

Carriers

8

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 31 4 0 0 AS
Oct 2025 31 2 2 0 AS
Sep 2025 30 1 1 0 AS
Aug 2025 31 1 0 0 AS
Jul 2025 30 1 1 0 AS
Jun 2025 30 2 0 0 AS
May 2025 31 2 0 0 AS,OO
Apr 2025 31 1 0 0 OO,AS
Mar 2025 31 3 0 0 AS
Dec 2024 31 7 0 0 AS
Oct 2024 30 7 1 0 AS
Aug 2024 31 3 0 0 AS
Jul 2024 31 3 0 0 AS
Jun 2024 30 2 0 0 AS
May 2024 31 3 0 1 AS
Apr 2024 30 3 1 0 AS
Mar 2024 31 5 0 1 AS,OO
Nov 2023 30 1 0 0 AS
Oct 2023 31 3 0 0 AS
Sep 2023 30 1 0 0 AS
Aug 2023 31 3 0 0 AS
Jun 2023 30 3 0 0 AS
May 2023 31 1 0 0 AS
Mar 2023 31 3 0 0 AS

GEG–SAN seasonal on-time pattern

Best: September (95.8%) · weakest: December (71.5%)

70%80%90%100% JanMarAprMayJunJulAugSepOctNovDec 71.5%

Strongest calendar month

September

95.8% on-time · ~30 flights/mo

Busiest calendar month

January

~34 flights/mo avg

Weakest calendar month

December

71.5% on-time · ~31 flights/mo

Cancellation Rate

0.8%

6 of 735 flights

Diversion Rate

0.3%

2 of 735 flights

Explore origin & destination

On-time and delay data for the airports this route connects.

GEG - Spokane

Full on-time, delay-cause, and seasonal performance for Spokane, WA.

GEG on-time profile

SAN - San Diego

Full on-time, delay-cause, and seasonal performance for San Diego, CA.

SAN on-time profile

Compare the two airports

See GEG and SAN side by side on delays, cancellations, and reliability.

Compare GEG vs SAN

Origin-hub reliability standing

Among GEG's stronger departures

GEG → SAN posts a 89.6% on-time rate, landing in the ≥85% band with 12 of 18 BTS-tracked routes leaving Spokane. The same hub also shows 6 mid-band and 0 challenged departures · fleet-wide on-time rank #176 of 4927 (highest on-time = #1).

What the Data Says About GEG to SAN

Spokane to San Diego (GEG to SAN) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 89.6% on-time rate across 1,475 flights, with delays that do happen averaging 66.6 minutes. The corridor runs roughly 1,027 miles and is served by 8 carriers. Over the most recent 24 months, 6 of 735 flights were cancelled (0.8%) and 2 diverted (0.3%).

Monthly performance data for this route did not show a clear best/worst split in the sample window; review the monthly table above for period-by-period detail.

On the multi-year calendar, GEG–SAN peaks in September at 95.8% on-time while January carries the heaviest traffic (~34 flights per month) ; the softest month is December at 71.5%, a 24.3-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does GEG to SAN rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, GEG to SAN ranks #4166 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 GEG to SAN? ▼
Flights from Spokane to San Diego have a 89.6% on-time rate based on 1,475 flights. The average delay is 66.6 minutes.
What is the cancellation rate for GEG to SAN? ▼
Over the last 24 months, 0.8% of flights on this route were cancelled (6 of 735 flights) and 0.3% were diverted.
How far is the flight from GEG to SAN? ▼
The flight distance from Spokane (GEG) to San Diego (SAN) is approximately 1,027 miles. This route is served by 8 carriers.

Airports on this route

GEG Airport

Spokane
SAN Airport

San Diego
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 GEG–SAN data

GEG–SAN runs 10.6 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.

  • Compare GEG and SAN airport profiles: delay causes and top routes differ even on the same corridor. GEG airport
  • If your dates flex, September (95.8% on-time) beats December (71.5%) on this corridor. Seasonal chart
  • 4 other routes post a similar 89.6% 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.