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$55+ Cheap flights from Boise to San Diego (BOI - SAN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/11. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SAN
Dec 12 — Dec 191
Fri 12/12
Fri 12/19
1 adult, Economy
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Cheapflights Tip: The best prices from Boise Air Term. Gowen Fld to San Diego are usually found in October or September, booked 43 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Find flight deals from Boise to San Diego

Cheapest flights from Boise to San Diego
Explore the most affordable flight options available from Boise to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 12, 2025.

This Southwest deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/91:25 pmBOI - SAN
Nonstop2h 10mSouthwest
Tue 12/162:15 pmSAN - BOI
1 stop5h 25mSouthwest
Deal found 11/11$167
This Kiwi.com deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1112:44 pmBOI - SAN
1 stop7h 31mMultiple Airlines
Thu 12/181:06 pmSAN - BOI
1 stop25h 38mMultiple Airlines
Deal found 11/11$168
This Southwest deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/81:25 pmBOI - SAN
Nonstop2h 10mSouthwest
Thu 12/112:40 pmSAN - BOI
Nonstop2h 10mSouthwest
Deal found 11/11$171
This Alaska Airlines deal was found by Cheapflights users on 11/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/57:00 amBOI - SAN
Nonstop2h 29mAlaska Airlines
Mon 12/158:29 pmSAN - BOI
Nonstop2h 26mAlaska Airlines
Deal found 11/10$174
This Alaska Airlines deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/99:59 amBOI - SAN
1 stop5h 00mAlaska Airlines
Tue 12/162:15 pmSAN - BOI
1 stop6h 30mAlaska Airlines
Deal found 11/11$176
This Delta deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/25:58 pmBOI - SAN
1 stop7h 01mDelta
Wed 12/311:05 amSAN - BOI
1 stop8h 15mDelta
Deal found 11/11$177
This United Airlines deal was found by Cheapflights users on 11/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/132:20 pmBOI - SAN
1 stop7h 28mUnited Airlines
Mon 12/155:45 pmSAN - BOI
1 stop4h 59mUnited Airlines
Deal found 11/10$184
This Delta deal was found by Cheapflights users on 11/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/155:50 amBOI - SAN
1 stop4h 05mDelta
Mon 12/157:07 pmSAN - BOI
1 stop4h 35mDelta
Deal found 11/10$191
This Delta deal was found by Cheapflights users on 11/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/511:44 amBOI - SAN
1 stop7h 29mDelta
Mon 12/86:15 amSAN - BOI
1 stop4h 47mDelta
Deal found 11/12$194
This Delta deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/124:45 pmBOI - SAN
1 stop7h 00mDelta
Sun 12/1411:05 amSAN - BOI
1 stop6h 46mDelta
Deal found 11/11$197

Cheap flight deals from Boise to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Boise (BOI) to San Diego (SAN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$167
(Southwest)

One-way from

$55
(Frontier)

Popular in

March

Cheapest in

October

Average price

$357

Good round-trip deal

$247 or less

Good one-way deal

$78 or less
Provider with most accurate pricing for Boise Air Term. Gowen Fld-San Diego flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-San Diego flights.
Search Deals
From Boise Air Term. Gowen Fld to San Diego
Search Deals
One-way flight from Boise Air Term. Gowen Fld to San Diego
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($22 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from Boise Air Term. Gowen Fld to San Diego.
Search Deals
Price to beat on a one-way flight from Boise Air Term. Gowen Fld to San Diego.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boise to San Diego that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 12, 2025.
Use the filters below to find and compare flights from Boise to San Diego that are best for you.

Fly from

Boise

Fly to

San Diego

Route

Depart

Return

Price

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

Sat 1/10

1:55 pm-8:58 pm

1 stop8h 03m

San Diego

Tue 1/27

10:16 am-1:45 pm

Nonstop2h 29m

$167

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

Tue 12/9

1:25 pm-2:35 pm

Nonstop2h 10m

San Diego

Tue 12/16

2:15 pm-8:40 pm

1 stop5h 25m

$167

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

Thu 1/1

6:55 am-8:21 am

Nonstop2h 26m

San Diego

Tue 1/6

8:33 pm-11:59 pm

Nonstop2h 26m

$167

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

Wed 12/10

5:59 pm-10:47 pm

1 stop5h 48m

San Diego

Wed 12/17

8:29 pm-11:55 pm

Nonstop2h 26m

$167

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

Thu 2/5

7:45 am-9:15 am

Nonstop2h 30m

San Diego

Mon 2/23

8:04 pm-11:30 pm

Nonstop2h 26m

$171

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

Mon 1/5

7:11 pm-8:44 pm

Nonstop2h 33m

San Diego

Fri 1/9

8:15 pm-11:42 pm

Nonstop2h 27m

$174

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

Sat 12/6

7:25 am-12:00 pm

1 stop5h 35m

San Diego

Sat 12/13

8:55 am-3:10 pm

1 stop5h 15m

$176

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

Fri 1/23

7:45 am-9:15 am

Nonstop2h 30m

San Diego

Thu 1/29

2:20 pm-11:01 pm

1 stop7h 41m

$184

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

Wed 12/31

6:55 am-8:21 am

Nonstop2h 26m

$79

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

Wed 2/4

7:55 pm-9:24 pm

Nonstop2h 29m

$79

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/10

Showing 1-10 of 19 results
1
2

Compare providers for flights from Boise to San Diego

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boise to San Diego in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Boise-San Diego flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Boise-San Diego flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Boise-San Diego flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boise-San Diego flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boise-San Diego flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Boise to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Boise with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Boise to San Diego

How far ahead should I book a flight from Boise to San Diego?

Use this chart to determine the optimal time to book a round-trip flight from Boise to San Diego. Price data was last updated on November 7, 2025.

To ensure you get the cheapest price possible for a flight from Boise to San Diego, you should look to book at least 43 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Boise to San Diego?

Currently, March is the cheapest month in which you can book a flight from Boise to San Diego (average of $75). Flying from Boise to San Diego in December is currently the most expensive (average of $167). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BOI to SAN?

Find hourly flight availability from Boise to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 12, 2025.

When flying from Boise to San Diego, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 13% versus a flight in the morning.

What is the cheapest day to fly from Boise to San Diego?

Use this chart to determine the cheapest time to fly round-trip from Boise to San Diego. Price data was last updated on November 2, 2025.

Travelers seeking maximum savings on their Boise to San Diego flight should consider departing on Tuesday at noon when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Diego. Reviews last updated November 12, 2025.
See what other customers who have flown with Alaska Airlines, Southwest, and Delta from Boise to San Diego have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,279 reviews

Boarding

8.1

Crew

8.5

Comfort

7.8

Entertainment

7.0

Food

7.1

Overall

8.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
11,279 reviews
Alaska Airlines
8.0
Very good
11,279 reviews

Boarding

8.1

Crew

8.5

Comfort

7.8

Entertainment

7.0

Food

7.1

Overall

8.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Southwest
8.0
Very good
4,235 reviews
Alaska Airlines
8.0
Very good
11,279 reviews

Boarding

8.1

Crew

8.5

Comfort

7.8

Entertainment

7.0

Food

7.1

Overall

8.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Delta
7.9
Good
8,009 reviews
Alaska Airlines
8.0
Very good
11,279 reviews

Boarding

8.1

Crew

8.5

Comfort

7.8

Entertainment

7.0

Food

7.1

Overall

8.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Hawaiian Airlines
7.8
Good
2,809 reviews
Alaska Airlines
8.0
Very good
11,279 reviews

Boarding

8.1

Crew

8.5

Comfort

7.8

Entertainment

7.0

Food

7.1

Overall

8.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Spirit Airlines
6.3
Okay
8,137 reviews
Alaska Airlines
8.0
Very good
11,279 reviews

Boarding

8.1

Crew

8.5

Comfort

7.8

Entertainment

7.0

Food

7.1

Overall

8.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Related info for your journey

Find useful and relevant information for your journey from Boise to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Boise to San Diego?

    To fly from Boise to San Diego, you need to book a flight from Air Term. Gowen Fld (BOI) to San Diego (SAN). Nonstop flights to San Diego from Boise Air Term. Gowen Fld take 2h 10m on average. When it comes time to book airfare, you have a few options: there are 6 outbound flights from Air Term. Gowen Fld to San Diego offered by 6 different airlines.

  • How popular is this Boise to San Diego flight route?

    Within the past month, 15 users have taken a look at flights from Boise Air Term. Gowen Fld to San Diego.

  • How long is the flight from Boise to San Diego?

    For as low as $167, Alaska Airlines can have you in San Diego from Boise in 2h 10m. The distance between Boise and San Diego is about 750 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Boise to San Diego round-trip?

    Spirit Airlines, at $96, was found to be the cheapest airline from Boise to San Diego.Alternate airlines to your destination round-trip include Hawaiian Airlines and Delta. Users have found that Spirit Airlines is 66% cheaper than the other options available to this destination.

  • What are the most reliable airlines from Boise to San Diego?

    Consider Japan Airlines (93%), Hawaiian Airlines (91%) or Alaska Airlines (90%) when booking your flight. These represent the most reliable airlines when flying from Boise to San Diego.

  • What are the cheapest flights from Boise to San Diego?

    The cheapest flight price from Boise to San Diego is $68. On average you can expect to pay $328. The most popular route, (Boise Air Term. Gowen Fld - San Diego), can usually be booked for $151.

  • Can I find deals for flights from Boise to San Diego that include hotel bookings?

    Yes. In addition to deals on Boise to San Diego flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boise to San Diego?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boise to San Diego.

  • Can I find deals for business class flights from Boise to San Diego?

    Yes. Cheapflights offers flight deals from Boise to San Diego by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Boise to San Diego?

    Currently, March is the cheapest month in which you can book a flight from Boise to San Diego (average of $75). Flying from Boise to San Diego in December is currently the most expensive (average of $167). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
Chula Vista
Coronado
La Mesa
Poway
Lemon Grove
National City

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Top 6 airlines flying from Boise to San Diego

Discover the top 6 airlines that operate flights from Boise to San Diego. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$96Average$175FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$137Average$296FlexibilityNo cancel feeOn-time85%
DeltaCheapest$147Average$216FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$149Average$324FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$175Average$301FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$186Average$296FlexibilityNo cancel feeOn-time69%

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