Can I fly direct from Boise to San Diego?

Historically, approximately 28.4% of flights from Boise to San Diego have been direct. For those flights that are not direct, the median number of stopovers is one. Travelers should be aware that while direct options are available, a significant portion of flights on this route will involve at least one stop. It is advisable to check flight details when planning your journey.

How long does it take to fly from Boise to San Diego?

A direct flight from Boise to San Diego typically takes about 2 hours and 22 minutes. For flights with one stop, the median duration is considerably longer, averaging 7 hours and 3 minutes. The direct flight covers a distance of 1207 kilometers. Travelers should factor in these differing flight times when making their travel arrangements, depending on whether they choose a direct or connecting service.

How often do cheap flights from Boise to San Diego come up?

Historically, cheap flights from Boise to San Diego come up frequently. This route is classified as one where good deals are commonly observed. Travelers can often find favorable prices when planning their trips. It is generally a route with consistent availability of competitively priced options.

Flights From Boise

To San Diego

Cheap Flights from Boise to San Diego

Browse current best options from Boise. Become a member to unlock all deals and get alerts when new deals appear.

Deals from

Boise

RatePunk searches hundreds of travel sites at once for deals on flights to San Diego

Prices updated 2 days ago

405 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated Jul 26, 2026.)

Today’s best flight deals from Boise to San Diego

Explore current cheapest deals departing from Boise to San Diego

2026-09-15 – 2026-09-19
BOI - San Diego
66% AI deal score
$148
$135
Round trip
2026-09-17 – 2026-09-24
BOI - San Diego
50% AI deal score
$141
$136
Round trip
2026-11-12 – 2026-11-19
BOI - San Diego
70% AI deal score
$177
$136
Round trip
2026-12-05 – 2026-12-12
BOI - San Diego
75% AI deal score
$186
$136
Round trip
2026-12-07 – 2026-12-09
BOI - San Diego
75% AI deal score
$194
$136
Round trip
2026-09-10 – 2026-09-15
BOI - San Diego
65% AI deal score
$146
$137
Round trip
2026-11-04 – 2026-11-11
BOI - San Diego
67% AI deal score
$167
$145
Round trip
2026-08-19 – 2026-08-26
BOI - San Diego
66% AI deal score
$159
$146
Round trip
2026-08-22 – 2026-08-29
BOI - San Diego
66% AI deal score
$157
$146
Round trip
2026-09-28 – 2026-09-29
BOI - San Diego
65% AI deal score
$155
$146
Round trip

Boise to San Diego: Overview

Insights for flights from Boise to San Diego

Most itineraries from Boise to San Diego connect at least once, with only 28.4% of recent fares being non-stop. For connecting flights, the typical number of connections is 1. This means you'll often find yourself making a stop along the way to your destination.

When looking for cheap flights from Boise to San Diego, March is typically the most affordable month, with a median fare of just $80. January also offers competitive pricing, with a median fare of $138, followed closely by April at $141. These months present the best opportunities for budget-conscious travelers.

Right now, fares to San Diego from Boise typically range from $185–$387, with a median of $300. Current fares are significantly below the typical level, indicating a favorable time to consider booking. However, only 2% of recent fares were classified as a good price, suggesting that while current prices are lower, exceptional deals are not common. New deals appear almost daily, so setting up a price alert can be beneficial.

A typical journey from Boise to San Diego takes about 2h 22m, including connections. This median duration accounts for both direct and connecting itineraries. If you fly direct, the flight time is also approximately 2h 22m, while connecting flights typically extend the journey to around 7h 3m.

The distance between Boise and San Diego is 1207 kilometers, classifying this as a short-haul route. This relatively short distance contributes to the overall journey time and the types of aircraft typically used for this route.

How much is a round trip from Boise to San Diego

Regular price: $126 - $323

Prices are currently within the regular range for flights from Boise to San Diego.

The regular price range for flights from Boise to San Diego is between $126 and $323. The current lowest deal is $136 with Alaska Airlines, Inc. for travel from Aug 24-Aug 29.

now $136

Low $126

High $323

The cheapest time to fly from Boise to San Diego

The cheapest month to fly from Boise to San Diego is March, with a median price of $80. The most expensive month is July, with a median price of $390. Prices are generally lower from January to December.

March

Cheapest

Flights from $80

July

Most Expensive

Flights from $390

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from Boise to San Diego

Alaska Airlines, Inc.

Last-minute flights going from Boise to San Diego

Sat, Jul 25

⌛ Last-Minute

BOI - San Diego

Boise (BOI) - San Diego (SAN)

Alaska Airlines, Inc.

$424

$336

One-way

Sun, Aug 2

⌛ Last-Minute

BOI - San Diego

Boise (BOI) - San Diego (SAN)

Southwest Airlines

$361

$332

One-way

Tue, Aug 4

⌛ Last-Minute

BOI - San Diego

Boise (BOI) - San Diego (SAN)

Alaska Airlines, Inc.

$358

$256

One-way

Wed, Aug 5

⌛ Last-Minute

BOI - San Diego

Boise (BOI) - San Diego (SAN)

Alaska Airlines, Inc.

$352

$206

One-way

Wed, Aug 5

⌛ Last-Minute

BOI - San Diego

Boise (BOI) - San Diego (SAN)

Southwest Airlines

$347

$286

One-way

Thu, Aug 13

⌛ Last-Minute

BOI - San Diego

Boise (BOI) - San Diego (SAN)

Southwest Airlines

$174

$157

One-way

Biggest price drops on these dates for flights from Boise to San Diego

4 nights

Dec 1 - Dec 5

$320 → $167

48%

2 nights

Aug 5 - Aug 7

$352 → $206

41%

7 nights

Dec 1 - Dec 8

$310 → $166

46%

3 nights

Nov 5 - Nov 8

$290 → $161

44%

Popular Airports to fly from Boise to San Diego

Boise - San Diego route insights

💸 Price insights

Recent fares are below the typical level

Recent fares from Boise to San Diego are below the typical level at $136.

📅 Best time to fly

March is historically the cheapest month

Historically, March is the cheapest month to fly from Boise to San Diego, with a median price of $80.

⏱️ Flight duration

Direct flights take 2h 22m

Direct flights from Boise to San Diego typically take 2h 22m, while connecting flights average 7h 3m.

✈️ Airlines & availability

Connecting flights are more common

Connecting flights are more common on this route, making up 71.6% of recent fares.

🏆 Airline highlight

Alaska Airlines, Inc. offers direct flights

Alaska Airlines, Inc. offers direct flights from Boise to San Diego.

🎯 Booking tip

Deals are frequent on this route

Deals for flights from Boise to San Diego are frequent, appearing within a 30-day window.

Boise main airports to depart from

Boise (BOI)

Cheapest

Boise Airport is a convenient choice for flights from Boise to San Diego.

📍 ~6 km from city center (reachable by car)

💸 Flights from ~$137

San Diego main airports to arrive at

San Diego International (SAN)

Cheapest

San Diego International Airport is a convenient arrival option for flights from Boise to San Diego.

📍 ~3 km from San Diego (reachable by car)

💸 Flights from ~$137

Airports nearby San Diego used as alternative

Tijuana International (TIJ)

Tijuana International (TIJ) is a useful alternative, especially for travelers heading into Mexico via the Cross Border Xpress (CBX).

📍 ~25 km from San Diego (reachable by car, requires valid passport and CBX fee)

💸 Flights from ~$405

Frequently Asked Questions About Flights to San Diego

Historically, the lowest average prices for flights from Boise to San Diego are found when booking 60+ days in advance, with an average price of $241. Booking within 14-27 days of departure also typically offers a good value, with an average price of $257. In contrast, booking within 7-13 days of travel tends to be more expensive, averaging $382. Prices generally increase significantly as the departure date approaches, reaching an average of $371 for bookings made 0-6 days out.

Across the trailing quarter, a flight from Boise to San Diego is considered a good deal if it is priced at or below $185. The median price for this route over the same period was $300. Prices can vary, with 75% of observed prices falling below $387. Keeping an eye out for fares at or below the $185 threshold can help travelers secure a favorable price.

Historically, the cheapest months to fly from Boise to San Diego include March, with a median price of $80, and January, with a median price of $138. April also tends to offer lower prices, with a median of $141. These months are typically more affordable compared to the annual median price of $300 for this route. Travelers looking for the best value may consider planning their trips during these periods.

Related routes

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Flights to San Diego from other cities

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Boise to San Diego: Overview

Insights for flights from Boise to San Diego

How much is a round trip from Boise to San Diego

Regular price: $126 - $323

Prices are currently within the regular range for flights from Boise to San Diego.

The regular price range for flights from Boise to San Diego is between $126 and $323. The current lowest deal is $136 with Alaska Airlines, Inc. for travel from Aug 24-Aug 29.

now $136

Low $126

High $323

The cheapest time to fly from Boise to San Diego

March

Cheapest

Flights from $80

July

Most Expensive

Flights from $390

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec