$79+ 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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SAN
Sep 9 — Sep 161
Round-trip
1 adult, Economy
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Find cheap flights from Boise to San Diego with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Boise Air Term. Gowen Fld to San Diego are usually found in January or February, booked 43 days in advance, depart on a Monday or Thursday and return on a Saturday
Cheap flight deals from Boise to San Diego
Cheapest
Best
Last-minute
One-way
Cheapest flights from Boise to San DiegoExplore 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 August 10, 2026.
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 August 10, 2026.
This Southwest deal was found by Cheapflights users on 8/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/17:05 am -
1 stop6h 55m
Sat 9/510:35 am -
Nonstop2h 10m
Deal found 8/10![Southwest logo]()
$166
This Alaska Airlines deal was found by Cheapflights users on 8/6. 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 9/116:49 pm -
Nonstop2h 30m
Wed 9/164:58 pm -
Nonstop2h 22m
Deal found 8/6![Alaska Airlines logo]()
$167
This CheapOair deal was found by Cheapflights users on 8/6. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/182:50 pm -
1 stop27h 09m
Wed 9/235:54 pm -
1 stop19h 01m
Deal found 8/6![Frontier logo]()
$168
This Expedia deal was found by Cheapflights users on 8/6. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2712:24 pm -
1 stop21h 41m
Sat 8/294:58 pm -
Nonstop2h 22m
Deal found 8/6![Multiple Airlines logo]()
$173
This United Airlines deal was found by Cheapflights users on 8/10. 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.
Sun 9/66:15 am -
1 stop5h 03m
Fri 9/117:43 am -
1 stop6h 48m
Deal found 8/10![United Airlines logo]()
$177
This Kiwi.com deal was found by Cheapflights users on 8/9. 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.
Fri 10/303:52 pm -
1 stop5h 01m
Sun 11/17:24 pm -
1 stop16h 16m
Deal found 8/9![Multiple Airlines logo]()
$179
This Southwest deal was found by Cheapflights users on 8/5. 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.
Sun 9/64:30 pm -
Nonstop2h 15m
Thu 9/107:30 am -
2 stops6h 35m
Deal found 8/5![Southwest logo]()
$182
This Southwest deal was found by Cheapflights users on 8/6. 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.
Sat 8/296:40 am -
Nonstop2h 15m
Mon 8/316:20 am -
1 stop4h 10m
Deal found 8/6![Southwest logo]()
$183
This Southwest deal was found by Cheapflights users on 8/5. 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 9/211:30 am -
1 stop3h 55m
Wed 9/98:45 am -
Nonstop2h 15m
Deal found 8/5![Southwest logo]()
$187
Best flights from Boise to San DiegoDiscover carefully curated flight deals from Boise to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 10, 2026.
Discover carefully curated flight deals from Boise to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 10, 2026.
This Alaska Airlines deal was found by Cheapflights users on 8/10. 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 9/116:49 pm -
Nonstop2h 30m
Tue 9/1510:45 am -
Nonstop2h 17m
Deal found 8/10![Alaska Airlines logo]()
$177
This Southwest deal was found by Cheapflights users on 8/8. 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.
Sat 9/51:50 pm -
Nonstop2h 15m
Sat 9/1211:10 am -
1 stop6h 30m
Deal found 8/8![Southwest logo]()
$187
This Delta deal was found by Cheapflights users on 8/5. 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.
Sun 11/86:00 am -
1 stop3h 47m
Tue 11/103:00 pm -
1 stop6h 54m
Deal found 8/5![Delta logo]()
$212
This Southwest deal was found by Cheapflights users on 8/7. 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.
Sat 10/241:35 pm -
Nonstop2h 15m
Thu 10/291:55 pm -
1 stop4h 10m
Deal found 8/7![Southwest logo]()
$187
This Alaska Airlines deal was found by Cheapflights users on 8/5. 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 11/86:41 pm -
Nonstop2h 20m
Mon 11/910:07 am -
Nonstop2h 21m
Deal found 8/5![Alaska Airlines logo]()
$192
This Southwest deal was found by Cheapflights users on 8/7. 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 8/243:45 pm -
Nonstop2h 15m
Sat 8/294:30 pm -
Nonstop2h 10m
Deal found 8/7![Southwest logo]()
$197
This Alaska Airlines deal was found by Cheapflights users on 8/8. 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.
Sat 9/126:23 am -
1 stop7h 58m
Tue 9/154:58 pm -
Nonstop2h 22m
Deal found 8/8![Alaska Airlines logo]()
$212
This Alaska Airlines deal was found by Cheapflights users on 8/8. 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.
Sat 8/227:20 am -
Nonstop2h 21m
Sat 8/296:55 am -
1 stop5h 26m
Deal found 8/8![Alaska Airlines logo]()
$227
This Southwest deal was found by Cheapflights users on 8/6. 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.
Thu 9/243:40 pm -
Nonstop2h 15m
Fri 9/256:30 am -
Nonstop2h 20m
Deal found 8/6![Southwest logo]()
$267
This Alaska Airlines deal was found by Cheapflights users on 8/8. 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 8/277:20 am -
Nonstop2h 21m
Tue 9/110:45 am -
Nonstop2h 17m
Deal found 8/8![Alaska Airlines logo]()
$247
This Alaska Airlines deal was found by Cheapflights users on 8/6. 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 10/307:20 am -
Nonstop2h 21m
Sun 11/16:32 pm -
Nonstop2h 28m
Deal found 8/6![Alaska Airlines logo]()
$252
Last-minute flights from Boise to San DiegoDiscover last-minute flight deals from Boise to San Diego. Data last updated August 10, 2026 and is based on user searches.
Discover last-minute flight deals from Boise to San Diego. Data last updated August 10, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 8/6. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2712:24 pm -
1 stop21h 41m
Sat 8/294:58 pm -
Nonstop2h 22m
Deal found 8/6![Multiple Airlines logo]()
$173
This Southwest deal was found by Cheapflights users on 8/6. 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.
Sat 8/296:40 am -
Nonstop2h 15m
Mon 8/316:20 am -
1 stop4h 10m
Deal found 8/6![Southwest logo]()
$183
This Southwest deal was found by Cheapflights users on 8/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/17:05 am -
1 stop6h 55m
Sat 9/510:35 am -
Nonstop2h 10m
Deal found 8/10![Southwest logo]()
$166
This Southwest deal was found by Cheapflights users on 8/5. 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 9/211:30 am -
1 stop3h 55m
Wed 9/98:45 am -
Nonstop2h 15m
Deal found 8/5![Southwest logo]()
$187
This United Airlines deal was found by Cheapflights users on 8/10. 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.
Sun 9/66:15 am -
1 stop5h 03m
Fri 9/117:43 am -
1 stop6h 48m
Deal found 8/10![United Airlines logo]()
$177
This Southwest deal was found by Cheapflights users on 8/5. 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.
Sun 9/64:30 pm -
Nonstop2h 15m
Thu 9/107:30 am -
2 stops6h 35m
Deal found 8/5![Southwest logo]()
$182
This Alaska Airlines deal was found by Cheapflights users on 8/6. 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 9/116:49 pm -
Nonstop2h 30m
Wed 9/164:58 pm -
Nonstop2h 22m
Deal found 8/6![Alaska Airlines logo]()
$167
This Southwest deal was found by Cheapflights users on 8/8. 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 9/116:30 am -
Nonstop2h 15m
Mon 9/146:20 am -
1 stop4h 10m
Deal found 8/8![Southwest logo]()
$188
This CheapOair deal was found by Cheapflights users on 8/6. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/182:50 pm -
1 stop27h 09m
Wed 9/235:54 pm -
1 stop19h 01m
Deal found 8/6![Frontier logo]()
$168
One-way flights from Boise to San DiegoSearch for one-way flight options from Boise to San Diego. Find affordable one-way fares based on user searches. Data last updated August 10, 2026.
Search for one-way flight options from Boise to San Diego. Find affordable one-way fares based on user searches. Data last updated August 10, 2026.
This Alaska Airlines deal was found by Cheapflights users on 8/7. 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 9/116:49 pm -
Nonstop2h 30m
Deal found 8/7![Alaska Airlines logo]()
$79
This Frontier deal was found by Cheapflights users on 8/7. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/81:24 pm -
1 stop11h 27m
Deal found 8/7![Frontier logo]()
$85
This Delta deal was found by Cheapflights users on 8/7. 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.
Sat 9/510:58 am -
1 stop5h 58m
Deal found 8/7![Delta logo]()
$89
This Kiwi.com deal was found by Cheapflights users on 8/9. 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 10/293:52 pm -
1 stop29h 01m
Deal found 8/9![Frontier logo]()
$90
This Frontier deal was found by Cheapflights users on 8/6. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/53:52 pm -
1 stop5h 01m
Deal found 8/6![Frontier logo]()
$94
This Kiwi.com deal was found by Cheapflights users on 8/9. 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.
Fri 9/112:50 pm -
1 stop6h 27m
Deal found 8/9![Frontier logo]()
$97
This Kiwi.com deal was found by Cheapflights users on 8/9. 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.
Mon 10/52:50 pm -
1 stop6h 27m
Deal found 8/9![Frontier logo]()
$98
This Delta deal was found by Cheapflights users on 8/7. 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 10/64:00 pm -
1 stop4h 14m
Deal found 8/7![Delta logo]()
$99
This Frontier deal was found by Cheapflights users on 8/7. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/312:24 pm -
1 stop12h 27m
Deal found 8/7![Frontier logo]()
$100
This Frontier deal was found by Cheapflights users on 8/9. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/12:50 pm -
1 stop6h 27m
Deal found 8/9![Frontier logo]()
$102
This Kiwi.com deal was found by Cheapflights users on 8/9. 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.
Sun 11/83:52 pm -
2 stops27h 37m
Deal found 8/9![Frontier logo]()
$103
This Southwest deal was found by Cheapflights users on 8/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/95:15 pm -
Nonstop2h 15m
Deal found 8/10![Southwest logo]()
$104
Find 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 August 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $166 (Southwest) |
One-way from | $79 (Alaska Airlines) |
Popular in | March |
Cheapest in | January |
Average price | $227 |
Good round-trip deal | $195 or less |
Good one-way deal | $78 or less |
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 August 10, 2026.
Use the filters below to find and compare flights from Boise to San Diego that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BoiseSan Diego
BOI Boise Air Term. Gowen Fld - SAN San Diego
BOISAN
Boise Air Term. Gowen Fld
Fri 9/11
6:49 pm-8:19 pm
Nonstop2h 30m
San Diego
Tue 9/15
10:45 am-2:02 pm
Nonstop2h 17m
$177
BoiseSan Diego
BOI Boise Air Term. Gowen Fld - SAN San Diego
BOISAN
Boise Air Term. Gowen Fld
Sat 9/5
1:50 pm-3:05 pm
Nonstop2h 15m
San Diego
Sat 9/12
11:10 am-6:40 pm
1 stop6h 30m
$187
BoiseSan Diego
BOI Boise Air Term. Gowen Fld - SAN San Diego
BOISAN
Boise Air Term. Gowen Fld
Sat 10/24
1:35 pm-2:50 pm
Nonstop2h 15m
San Diego
Thu 10/29
1:55 pm-7:05 pm
1 stop4h 10m
$187
BoiseSan Diego
BOI Boise Air Term. Gowen Fld - SAN San Diego
BOISAN
Boise Air Term. Gowen Fld
Sun 11/8
6:41 pm-8:01 pm
Nonstop2h 20m
San Diego
Mon 11/9
10:07 am-1:28 pm
Nonstop2h 21m
$192
Quickest round-trip
BoiseSan Diego
BOI Boise Air Term. Gowen Fld - SAN San Diego
BOISAN
Boise Air Term. Gowen Fld
Mon 8/24
3:45 pm-5:00 pm
Nonstop2h 15m
San Diego
Sat 8/29
4:30 pm-7:40 pm
Nonstop2h 10m
$197
BoiseSan Diego
BOI Boise Air Term. Gowen Fld - SAN San Diego
BOISAN
Boise Air Term. Gowen Fld
Sun 11/8
6:00 am-8:47 am
1 stop3h 47m
San Diego
Tue 11/10
3:00 pm-10:54 pm
1 stop6h 54m
$212
BoiseSan Diego
BOI Boise Air Term. Gowen Fld - SAN San Diego
BOISAN
Boise Air Term. Gowen Fld
Sat 9/12
6:23 am-1:21 pm
1 stop7h 58m
San Diego
Tue 9/15
4:58 pm-8:20 pm
Nonstop2h 22m
$212
BoiseSan Diego
BOI Boise Air Term. Gowen Fld - SAN San Diego
BOISAN
Boise Air Term. Gowen Fld
Sat 8/22
7:20 am-8:41 am
Nonstop2h 21m
San Diego
Sat 8/29
6:55 am-1:21 pm
1 stop5h 26m
$227
BoiseSan Diego
BOI Boise Air Term. Gowen Fld - SAN San Diego
BOISAN
Boise Air Term. Gowen Fld
Thu 8/27
7:20 am-8:41 am
Nonstop2h 21m
San Diego
Tue 9/1
10:45 am-2:02 pm
Nonstop2h 17m
$247
BoiseSan Diego
BOI Boise Air Term. Gowen Fld - SAN San Diego
BOISAN
Boise Air Term. Gowen Fld
Fri 10/30
7:20 am-8:41 am
Nonstop2h 21m
San Diego
Sun 11/1
6:32 pm-10:00 pm
Nonstop2h 28m
$252
Showing 1-10 of 22 resultsSorted by cheapest first
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 August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy1 star | Trust Score*3 stars |
- 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.
BOI-SAN
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
Prices
Airlines
How far ahead should I book a flight from Boise to San Diego?
To ensure you get the cheapest price possible for a flight from Boise to San Diego, you should look to book at least 42 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, January is the cheapest month in which you can book a flight from Boise to San Diego (average of $196). Flying from Boise to San Diego in March is currently the most expensive (average of $357). 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 August 10, 2026.
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 17% versus a flight in the evening.
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 August 8, 2026.
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. Sunday 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 August 10, 2026.
See what other customers who have flown with Southwest,Alaska Airlines, andDelta 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.
Overall
8.0
Comfort
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Overall
8.0
Comfort
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Overall
8.0
Comfort
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Overall
8.0
Comfort
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Overall
8.0
Comfort
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Overall
8.0
Comfort
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
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.
Traveling to a place near San Diego?
Book flights to San Diego if you plan to visit one of these locationsEl Cajon
National City
Chula Vista
Poway
Coronado
San Ysidro
La Mesa
Santee
Julian
Lemon Grove
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Top 5 airlines flying from Boise to San Diego
Discover the top 5 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 August 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$88 | Average$192 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$143 | Average$272 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$152 | Average$221 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$158 | Average$286 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$162 | Average$275 | FlexibilityNo cancel fee | On-time63% |