Boise (BOI) to San Diego (SAN)
Flight time
≈ 2h 18m
Bearing
184° S
Boise (BOI) to San Diego (SAN) is 750 miles (1,207 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
Look up a route, or build a trip
Change the airports, or add stops for a multi-leg trip.
What actually flies BOI–SAN
US DOT T-100 · filed dataIn April 2026, Southwest Airlines operated the most departures, one of 4 carriers flying nonstop BOI–SAN; the Boeing 737-700 was the most common aircraft at 32% of departures; flights ran 67% full.
Departures
200
April 2026
Seats
26,655
both directions
Passengers
17,815
both directions
Load factor
66.8%
passengers ÷ seats
Who flies BOI–SAN?
Southwest Airlines operated the most nonstop BOI–SAN departures in April 2026 (80), one of 4 carriers on the route.
- WN
Southwest Airlines
80 departures · 11,606 seats
Share of departures40.0%74.3%
Load
- AS
Alaska Airlines
60 departures · 10,489 seats
Share of departures30.0%51.4%
Load
- QX
Horizon Air
42 departures · 3,192 seats
Share of departures21.0%83.4%
Load
- OO
SkyWest Airlines
18 departures · 1,368 seats
Share of departures9.0%83.3%
Load
What plane flies BOI–SAN?
In April 2026, the Boeing 737-700 flew 32% of BOI–SAN departures — more than any other aircraft type.
- Boeing 737-700
63 departures · 73.2% load
31.5% - Embraer E175
60 departures · 83.4% load
30.0% - Boeing 737-900ER
30 departures · 53.6% load
15.0% - Boeing 737 MAX 9
19 departures · 48.5% load
9.5% - Boeing 737 MAX 8
16 departures · 71.3% load
8.0% - Boeing 737-800
12 departures · 61.7% load
6.0%
How has BOI–SAN traffic changed?
Nonstop BOI–SAN departures rose from 185 in May 2025 to 200 in April 2026.
Monthly nonstop BOI–SAN traffic, trailing 12 months through April 2026. Bars scale to the busiest month; months with no filed service show as zero.
May 2025
185 departures · 15,507 passengers
82.7%
Load
June 2025
181 departures · 16,145 passengers
87.7%
Load
July 2025
185 departures · 16,642 passengers
88.8%
Load
August 2025
175 departures · 15,348 passengers
80.5%
Load
September 2025
170 departures · 14,712 passengers
67.1%
Load
October 2025
179 departures · 17,701 passengers
73.3%
Load
November 2025
180 departures · 17,304 passengers
70.7%
Load
December 2025
188 departures · 18,003 passengers
70.6%
Load
January 2026
146 departures · 11,834 passengers
63.7%
Load
February 2026
147 departures · 14,173 passengers
73.6%
Load
March 2026
208 departures · 19,952 passengers
71.8%
Load
April 2026
200 departures · 17,815 passengers
66.8%
Load
By direction
The DOT files each direction separately — they rarely match.
BOI → SAN
67.9% full
100 departures · 8,972 passengers
SAN → BOI
65.8% full
100 departures · 8,843 passengers
Nonstop BOI–SAN traffic has been filed with the US DOT since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through April 2026; filings from 2025. Public domain (US Government work). The DOT publishes roughly three months in arrears.
The airports
Frequently asked
How far is Boise (BOI) from San Diego (SAN)?
BOI to SAN is 750 miles (1,207 km / 652 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from BOI to SAN?
A nonstop covers the 750-mile great-circle distance in roughly 2h 18m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies BOI–SAN?
In April 2026, the Boeing 737-700 flew the largest share of departures (31.5%), followed by the Embraer E175 (30.0%).
What mileage do I earn flying BOI–SAN?
Distance-based programs credit off the 750-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
Keep exploring
Every route below is its own page.
Other routes from BOI
Popular long-haul routes