Are direct flights from Boise to San Diego always the best option?

Direct flights offer convenience by minimizing travel time and avoiding layovers, which can be appealing. However, connecting flights may sometimes be more affordable, especially if you are willing to accept a longer journey. The 'best' option often depends on your priorities for cost versus convenience.

Can flexible travel dates help on Boise to San Diego flights?

Yes, being flexible with your travel dates can significantly impact flight prices. Shifting your departure or return by a few days, especially to travel during off-peak times, may result in finding more economical fares. Weekday travel often presents better deals than weekend travel.

What extra costs should I check before booking Boise to San Diego flights?

Before booking, always check for potential extra costs such as baggage fees, seat selection charges, and in-flight services. Some airlines may also charge for printing boarding passes at the airport. Factor these into your total travel budget to avoid surprises.

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 7 days ago

483 airlines compared

80%+ AI score for best value

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

Today’s best flight deals from Boise to San Diego

Explore current cheapest deals departing from Boise to San Diego

2027-02-02 – 2027-02-24
BOI - San Diego
66% AI deal score
$123
$115
Round trip
2027-01-31 – 2027-02-24
BOI - San Diego
48% AI deal score
$108
$115
Round trip
2027-01-31 – 2027-02-17
BOI - San Diego
48% AI deal score
$109
$115
Round trip
2027-02-09 – 2027-03-02
BOI - San Diego
66% AI deal score
$124
$115
Round trip
2027-02-02 – 2027-03-02
BOI - San Diego
66% AI deal score
$123
$115
Round trip
2027-01-31 – 2027-03-02
BOI - San Diego
48% AI deal score
$108
$115
Round trip
2027-02-03 – 2027-02-24
BOI - San Diego
66% AI deal score
$123
$115
Round trip
2027-02-03 – 2027-03-02
BOI - San Diego
66% AI deal score
$123
$115
Round trip
2027-01-05 – 2027-01-07
BOI - San Diego
48% AI deal score
$114
$116
Round trip
2027-01-05 – 2027-01-21
BOI - San Diego
48% AI deal score
$100
$116
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 12.8% of recent fares being non-stop. For connecting flights, the typical number of connections is 2. This means that while direct flights from Boise to San Diego are available, you'll more often find itineraries that include one or more stops.

A typical journey from Boise to San Diego, including connections, takes about 8h 29m. Non-stop flights on this route have a median duration of 2h 21m. This difference highlights the impact of connections on overall travel time, with connecting itineraries significantly extending the journey.

When is the cheapest time to fly from Boise to San Diego? The most affordable month to fly is typically February, with a median fare of just $117. Other inexpensive months include August, where the median fare is $148, and January, with a median fare of $157. These months offer the lowest median prices for this route.

For cheap flights from Boise to San Diego, prices typically range from $271–$749, with a median of $372. Right now, fares are above the typical level. Approximately 20% of recent fares were classified as a good price. New deals show up several times a week, suggesting a regular cadence of opportunities to find better prices.

How much is a round trip from Boise to San Diego

Regular price: $115 - $322

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

The regular price range for flights from Boise to San Diego is typically between $115 and $322. The current lowest deal is $114 with Southwest Airlines for travel from Dec 3-Dec 7.

now $114

Low $115

High $322

The cheapest time to fly from Boise to San Diego

The cheapest month to fly from Boise to San Diego is February, with a median price of $117. The most expensive month is September, with a median price of $534. Prices are generally lower from January to December.

February

Cheapest

Flights from $117

September

Most Expensive

Flights from $534

Jan

Feb

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

Tue, Nov 3

⌛ Last-Minute

BOI - San Diego

Boise (BOI) - San Diego (SAN)

Alaska Airlines, Inc.

$355

$261

One-way

Wed, Nov 4

⌛ Last-Minute

BOI - San Diego

Boise (BOI) - San Diego (SAN)

Alaska Airlines, Inc.

$337

$261

One-way

Thu, Nov 12

⌛ Last-Minute

BOI - San Diego

Boise (BOI) - San Diego (SAN)

Southwest Airlines

$259

$155

One-way

Thu, Nov 12

⌛ Last-Minute

BOI - San Diego

Boise (BOI) - San Diego (SAN)

Southwest Airlines

$285

$236

One-way

Sat, Nov 14

⌛ Last-Minute

BOI - San Diego

Boise (BOI) - San Diego (SAN)

Alaska Airlines, Inc.

$258

$152

One-way

Fri, Nov 20

⌛ Last-Minute

BOI - San Diego

Boise (BOI) - San Diego (SAN)

Alaska Airlines, Inc.

$274

$222

One-way

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

2 nights

Nov 13 - Nov 15

$282 → $197

30%

7 nights

Nov 13 - Nov 20

$258 → $176

32%

7 nights

Apr 18 - Apr 25

$165 → $116

30%

5 nights

Apr 16 - Apr 21

$165 → $116

30%

Popular Airports to fly from Boise to San Diego

Boise - San Diego route insights

💸 Price insights

Recent fares are above the typical level

Recent fares for Boise to San Diego are above the typical level, with 20% considered good deals.

📅 Best time to fly

Fly in February for the lowest median prices

Historically, February offers the lowest median prices at $117, followed by August at $148.

⏱️ Flight duration

Direct flights take 2h 21m

The median flight time for a direct flight is 2h 21m, while connecting flights average 8h 29m.

✈️ Airlines & availability

Connecting flights are dominant

Only 12.8% of recent flights are direct, with connecting routes typically having 2 stopovers.

🏆 Airline highlight

Alaska Airlines offers direct flights

Alaska Airlines has offered direct flights on this route, with one direct deal recently found.

🎯 Booking tip

Deals appear regularly

Deals for this route appear regularly, with new offers emerging within a 30-day window.

Boise main airports to depart from

Boise (BOI)

Cheapest

Boise Airport (BOI) is a convenient option for flights from Boise to San Diego.

📍 ~6 km from city center

💸 Flights from ~$157

San Diego main airports to arrive at

San Diego International (SAN)

Cheapest

San Diego International Airport is the most convenient option for flights from Boise to San Diego.

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

💸 Flights from ~$157

Airports nearby San Diego used as alternative

Tijuana International (TIJ)

Tijuana International (TIJ) is a useful alternative for travelers heading to Mexico, with direct access via CBX.

📍 ~25 km from San Diego (reachable by Cross Border Xpress)

💸 Flights from ~$456

Business & First Class Flight Deals to San Diego

$471

Save $239

Alaska Airlines, Inc.

Business Class

Frequently Asked Questions About Flights to San Diego

To find more affordable flights, consider being flexible with your travel dates and times. Comparing prices across different airlines and booking platforms can often reveal better deals. Setting up price alerts may also help you catch drops in fares.

Booking flights in advance, typically several weeks to a few months before your desired departure, can often lead to better prices. However, last-minute deals can sometimes appear, so it's worth monitoring prices if your schedule allows for flexibility. Mid-week travel days may also offer more competitive fares.

Comparing nearby airports can sometimes uncover different flight options or potentially lower prices. While it may add to your ground travel time, the savings on airfare could be significant. It's often a good strategy to explore all available options in the region.

Related routes

More routes from Boise

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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: $115 - $322

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

The regular price range for flights from Boise to San Diego is typically between $115 and $322. The current lowest deal is $114 with Southwest Airlines for travel from Dec 3-Dec 7.

now $114

Low $115

High $322

The cheapest time to fly from Boise to San Diego

February

Cheapest

Flights from $117

September

Most Expensive

Flights from $534

Jan

Feb

Jul

Aug

Sep

Oct

Nov

Dec