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$49+ 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 10/26. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SAN
Oct 25 — Nov 11
Sat 10/25
Sat 11/1
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 August or October, booked 54 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

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 September 25, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$143
(Southwest)

One-way from

$49
(Faresmojo)

Popular in

November

Cheapest in

August

Average price

$267

Good round-trip deal

$167 or less

Good one-way deal

$89 or less
Provider with most accurate pricing for Boise Air Term. Gowen Fld-San Diego flight deals.
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Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-San Diego flights.
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From Boise Air Term. Gowen Fld to San Diego
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One-way flight from Boise Air Term. Gowen Fld to San Diego
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Highest demand for flights based on searches. 10% potential increase in price ($36 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Boise Air Term. Gowen Fld to San Diego.
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Price to beat on a one-way flight from Boise Air Term. Gowen Fld to San Diego.
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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 September 25, 2025.

This Southwest deal was found by Cheapflights users on 9/25. 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.
Wed 10/2211:30 amBOI - SAN
2 stops7h 10mSouthwest
Fri 10/243:05 pmSAN - BOI
Nonstop2h 10mSouthwest
Deal found 9/25$143
This Southwest deal was found by Cheapflights users on 9/25. 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 10/2712:35 pmBOI - SAN
Nonstop2h 15mSouthwest
Mon 10/273:10 pmSAN - BOI
1 stop7h 10mSouthwest
Deal found 9/25$145
This Southwest deal was found by Cheapflights users on 9/24. 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.
Wed 10/2911:30 amBOI - SAN
2 stops7h 10mSouthwest
Sat 11/16:20 amSAN - BOI
1 stop6h 45mSouthwest
Deal found 9/24$146
This Southwest deal was found by Cheapflights users on 9/23. 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.
Fri 11/77:10 pmBOI - SAN
1 stop4h 30mSouthwest
Tue 11/114:50 pmSAN - BOI
1 stop4h 35mSouthwest
Deal found 9/23$147
This Alaska Airlines deal was found by Cheapflights users on 9/25. 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.
Wed 11/121:40 pmBOI - SAN
1 stop6h 28mAlaska Airlines
Sat 11/158:03 amSAN - BOI
Nonstop2h 30mAlaska Airlines
Deal found 9/25$148
This Southwest deal was found by Cheapflights users on 9/24. 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.
Fri 11/77:10 pmBOI - SAN
1 stop4h 30mSouthwest
Sun 11/96:30 amSAN - BOI
1 stop6h 15mSouthwest
Deal found 9/24$154
This United Airlines deal was found by Cheapflights users on 9/23. 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.
Wed 10/157:05 pmBOI - SAN
1 stop6h 10mUnited Airlines
Sat 10/188:00 amSAN - BOI
1 stop4h 43mUnited Airlines
Deal found 9/23$155
This Alaska Airlines deal was found by Cheapflights users on 9/25. 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.
Sun 10/197:13 amBOI - SAN
Nonstop2h 32mAlaska Airlines
Wed 10/222:30 pmSAN - BOI
1 stop7h 35mAlaska Airlines
Deal found 9/25$156
This Alaska Airlines deal was found by Cheapflights users on 9/23. 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 10/217:00 amBOI - SAN
1 stop6h 43mAlaska Airlines
Tue 10/288:03 amSAN - BOI
Nonstop2h 30mAlaska Airlines
Deal found 9/23$157
This Kiwi.com deal was found by Cheapflights users on 9/25. 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.
Tue 10/148:02 amBOI - SAN
1 stop13h 18mAlaska Airlines
Thu 10/167:50 pmSAN - BOI
Nonstop2h 32mAlaska Airlines
Deal found 9/25$158
This Alaska Airlines deal was found by Cheapflights users on 9/25. 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.
Thu 10/167:13 amBOI - SAN
Nonstop2h 32mAlaska Airlines
Sat 10/188:18 amSAN - BOI
1 stop8h 18mAlaska Airlines
Deal found 9/25$162

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 September 25, 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

Thu 10/30

6:55 pm-9:50 pm

1 stop3h 55m

San Diego

Tue 11/4

8:00 am-1:30 pm

1 stop4h 30m

$143

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

Fri 11/7

7:10 pm-10:40 pm

1 stop4h 30m

San Diego

Tue 11/11

4:50 pm-10:25 pm

1 stop4h 35m

$147

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

Mon 10/27

5:25 pm-11:15 pm

1 stop6h 50m

San Diego

Wed 10/29

8:15 am-3:35 pm

1 stop6h 20m

$147

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

Wed 10/22

7:13 am-8:45 am

Nonstop2h 32m

San Diego

Wed 10/29

5:00 pm-11:49 pm

1 stop5h 49m

$148

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

Sat 10/18

7:20 am-2:05 pm

2 stops7h 45m

San Diego

Mon 10/20

7:00 pm-11:40 pm

1 stop3h 40m

$148

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

Fri 11/7

7:10 pm-10:40 pm

1 stop4h 30m

San Diego

Sun 11/9

6:30 am-1:45 pm

1 stop6h 15m

$154

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

Thu 12/4

4:45 pm-10:45 pm

1 stop7h 00m

San Diego

Mon 12/8

11:05 am-8:20 pm

1 stop8h 15m

$155

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

Sun 10/19

7:13 am-8:45 am

Nonstop2h 32m

San Diego

Mon 10/27

10:09 pm-11:49 pm

1 stop24h 40m

$155

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

Mon 10/20

9:00 am-2:11 pm

1 stop6h 11m

San Diego

Thu 10/30

7:10 pm-11:59 pm

1 stop3h 49m

$155

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

Wed 10/15

8:02 am-11:20 am

1 stop4h 18m

San Diego

Sat 10/18

7:50 pm-11:22 pm

Nonstop2h 32m

$155

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/24

Showing 1-10 of 21 results
1
2
3

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 September.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*1 star
JustAirTicketPrice Accuracy-Trust Score*3 stars
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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boise-San Diego flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 September 19, 2025.

To ensure you get the cheapest price possible for a flight from Boise to San Diego, you should look to book at least 54 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, August is the cheapest month in which you can book a flight from Boise to San Diego (average of $286). Flying from Boise to San Diego in March is currently the most expensive (average of $366). 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 September 25, 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 September 21, 2025.

Travelers seeking maximum savings on their Boise to San Diego flight should consider departing on Saturday evenings when fares are most often at their lowest. Saturday afternoons 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 September 25, 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
10,000 reviews

Entertainment

7.0

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.1

Comfort

7.8

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
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.1

Comfort

7.8

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
4,246 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.1

Comfort

7.8

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
8.0
Very good
7,973 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.1

Comfort

7.8

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
2,750 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.1

Comfort

7.8

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
8,045 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.1

Comfort

7.8

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, 14 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 $148, Southwest can have you in San Diego from Boise in 2h 32m. 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 68% cheaper than the other options available to this destination.

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

    Consider Japan Airlines (92%), SkyWest Airlines (87%) or Alaska Airlines (86%) 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 $83. On average you can expect to pay $236. The most popular route, (Boise Air Term. Gowen Fld - San Diego), can usually be booked for $121.

  • 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, August is the cheapest month in which you can book a flight from Boise to San Diego (average of $286). Flying from Boise to San Diego in March is currently the most expensive (average of $366). 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
Imperial Beach
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 September 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$96Average$180FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$137Average$297FlexibilityNo cancel feeOn-time85%
DeltaCheapest$156Average$216FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$156Average$334FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$177Average$303FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$186Average$298FlexibilityNo cancel feeOn-time69%

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