$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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SAN
Mar 13 — Mar 201
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 October or September, booked 43 days in advance, depart on a Tuesday or Wednesday 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 February 11, 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 February 11, 2026.
This Alaska Airlines deal was found by Cheapflights users on 2/11. 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.
Sat 4/116:32 am
BOI
- SAN
Nonstop2h 24m
Alaska Airlines
Sat 4/188:18 pm
SAN
- BOI
Nonstop2h 29m
Alaska Airlines
Deal found 2/11![Alaska Airlines logo]()
$157
This Southwest deal was found by Cheapflights users on 2/10. 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 3/107:05 am
BOI
- SAN
Nonstop2h 20m
Southwest
Tue 3/177:35 am
SAN
- BOI
1 stop4h 15m
Southwest
Deal found 2/10![Southwest logo]()
$163
This Alaska Airlines deal was found by Cheapflights users on 2/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/107:00 am
BOI
- SAN
Nonstop2h 26m
Alaska Airlines
Tue 3/178:39 am
SAN
- BOI
1 stop5h 29m
Alaska Airlines
Deal found 2/9![Alaska Airlines logo]()
$167
This Kiwi.com deal was found by Cheapflights users on 2/9. 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 3/276:32 am
BOI
- SAN
Nonstop2h 24m
Hawaiian Airlines
Fri 4/38:18 pm
SAN
- BOI
Nonstop2h 29m
Hawaiian Airlines
Deal found 2/9![Hawaiian Airlines logo]()
$168
This CheapOair deal was found by Cheapflights users on 2/8. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/2612:38 pm
BOI
- SAN
1 stop20h 02m
Frontier
Wed 3/116:25 am
SAN
- BOI
1 stop27h 55m
Frontier
Deal found 2/8![Frontier logo]()
$171
This Delta deal was found by Cheapflights users on 2/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/107:30 am
BOI
- SAN
1 stop6h 18m
Delta
Tue 3/171:45 pm
SAN
- BOI
1 stop6h 16m
Delta
Deal found 2/9![Delta logo]()
$177
This Southwest deal was found by Cheapflights users on 2/8. 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.
Tue 4/74:05 pm
BOI
- SAN
1 stop4h 25m
Southwest
Wed 4/84:30 pm
SAN
- BOI
2 stops6h 55m
Southwest
Deal found 2/8![Southwest logo]()
$182
This Orbitz deal was found by Cheapflights users on 2/9. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/2612:38 pm
BOI
- SAN
1 stop12h 30m
Multiple Airlines
Wed 3/115:55 pm
SAN
- BOI
Nonstop2h 24m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$185
This Alaska Airlines deal was found by Cheapflights users on 2/10. 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.
Wed 4/297:43 am
BOI
- SAN
Nonstop2h 22m
Alaska Airlines
Sat 5/29:04 am
SAN
- BOI
Nonstop2h 28m
Alaska Airlines
Deal found 2/10![Alaska Airlines 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 February 11, 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 February 11, 2026.
This Southwest deal was found by Cheapflights users on 2/8. 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.
Tue 3/107:05 am
BOI
- SAN
Nonstop2h 20m
Southwest
Tue 3/176:55 pm
SAN
- BOI
Nonstop2h 20m
Southwest
Deal found 2/8![Southwest logo]()
$157
This Alaska Airlines deal was found by Cheapflights users on 2/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/76:32 am
BOI
- SAN
Nonstop2h 24m
Alaska Airlines
Tue 4/146:15 am
SAN
- BOI
1 stop8h 14m
Alaska Airlines
Deal found 2/9![Alaska Airlines logo]()
$167
This Southwest deal was found by Cheapflights users on 2/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/17:05 am
BOI
- SAN
Nonstop2h 20m
Southwest
Wed 4/16:55 pm
SAN
- BOI
Nonstop2h 20m
Southwest
Deal found 2/9![Southwest logo]()
$157
This Alaska Airlines deal was found by Cheapflights users on 2/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/107:00 am
BOI
- SAN
Nonstop2h 26m
Alaska Airlines
Tue 3/178:39 am
SAN
- BOI
1 stop5h 29m
Alaska Airlines
Deal found 2/9![Alaska Airlines logo]()
$167
This Alaska Airlines deal was found by Cheapflights users on 2/10. 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.
Wed 4/297:43 am
BOI
- SAN
Nonstop2h 22m
Alaska Airlines
Sat 5/27:15 am
SAN
- BOI
1 stop7h 18m
Alaska Airlines
Deal found 2/10![Alaska Airlines logo]()
$167
This Southwest deal was found by Cheapflights users on 2/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/710:05 am
BOI
- SAN
2 stops8h 40m
Southwest
Tue 4/141:20 pm
SAN
- BOI
Nonstop2h 20m
Southwest
Deal found 2/9![Southwest logo]()
$172
This Alaska Airlines deal was found by Cheapflights users on 2/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/37:00 am
BOI
- SAN
Nonstop2h 26m
Alaska Airlines
Wed 3/44:52 pm
SAN
- BOI
1 stop4h 42m
Alaska Airlines
Deal found 2/9![Alaska Airlines logo]()
$167
This Alaska Airlines deal was found by Cheapflights users on 2/8. 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 4/116:32 am
BOI
- SAN
Nonstop2h 24m
Alaska Airlines
Mon 4/138:18 pm
SAN
- BOI
Nonstop2h 29m
Alaska Airlines
Deal found 2/8![Alaska Airlines logo]()
$167
Last-minute flights from Boise to San DiegoDiscover last-minute flight deals from Boise to San Diego. Data last updated February 11, 2026 and is based on user searches.
Discover last-minute flight deals from Boise to San Diego. Data last updated February 11, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 2/8. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/2612:38 pm
BOI
- SAN
1 stop20h 02m
Frontier
Wed 3/116:25 am
SAN
- BOI
1 stop27h 55m
Frontier
Deal found 2/8![Frontier logo]()
$171
This Orbitz deal was found by Cheapflights users on 2/9. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/2612:38 pm
BOI
- SAN
1 stop12h 30m
Multiple Airlines
Wed 3/115:55 pm
SAN
- BOI
Nonstop2h 24m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$185
This Alaska Airlines deal was found by Cheapflights users on 2/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/37:00 am
BOI
- SAN
Nonstop2h 26m
Alaska Airlines
Wed 3/48:04 pm
SAN
- BOI
Nonstop2h 26m
Alaska Airlines
Deal found 2/9![Alaska Airlines logo]()
$187
This Southwest deal was found by Cheapflights users on 2/8. 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.
Tue 3/107:05 am
BOI
- SAN
Nonstop2h 20m
Southwest
Tue 3/176:55 pm
SAN
- BOI
Nonstop2h 20m
Southwest
Deal found 2/8![Southwest logo]()
$157
This Alaska Airlines deal was found by Cheapflights users on 2/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/107:00 am
BOI
- SAN
Nonstop2h 26m
Alaska Airlines
Tue 3/178:39 am
SAN
- BOI
1 stop5h 29m
Alaska Airlines
Deal found 2/9![Alaska Airlines logo]()
$167
This Delta deal was found by Cheapflights users on 2/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/107:30 am
BOI
- SAN
1 stop6h 18m
Delta
Tue 3/171:45 pm
SAN
- BOI
1 stop6h 16m
Delta
Deal found 2/9![Delta logo]()
$177
This Kiwi.com deal was found by Cheapflights users on 2/9. 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 3/276:32 am
BOI
- SAN
Nonstop2h 24m
Hawaiian Airlines
Fri 4/38:18 pm
SAN
- BOI
Nonstop2h 29m
Hawaiian Airlines
Deal found 2/9![Hawaiian Airlines 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 February 11, 2026.
Search for one-way flight options from Boise to San Diego. Find affordable one-way fares based on user searches. Data last updated February 11, 2026.
This Alaska Airlines deal was found by Cheapflights users on 2/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/107:00 am
BOI
- SAN
Nonstop2h 26m
Alaska Airlines
Deal found 2/9![Alaska Airlines logo]()
$79
This Frontier deal was found by Cheapflights users on 2/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1212:03 pm
BOI
- SAN
1 stop9h 23m
Frontier
Deal found 2/11![Frontier logo]()
$86
This Alaska Airlines deal was found by Cheapflights users on 2/7. 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.
Sun 3/87:00 am
BOI
- SAN
Nonstop2h 26m
Alaska Airlines
Deal found 2/7![Alaska Airlines logo]()
$89
This CheapOair deal was found by Cheapflights users on 2/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/711:53 am
BOI
- SAN
1 stop21h 41m
Frontier
Deal found 2/9![Frontier logo]()
$92
This Southwest deal was found by Cheapflights users on 2/8. 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.
Tue 4/710:05 am
BOI
- SAN
2 stops8h 40m
Southwest
Deal found 2/8![Southwest logo]()
$94
This Delta deal was found by Cheapflights users on 2/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/97:30 am
BOI
- SAN
1 stop8h 14m
Delta
Deal found 2/9![Delta logo]()
$99
This Delta deal was found by Cheapflights users on 2/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/86:00 am
BOI
- SAN
1 stop7h 42m
Delta
Deal found 2/9![Delta logo]()
$104
This Alaska Airlines deal was found by Cheapflights users on 2/8. 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 8/87:03 am
BOI
- SAN
Nonstop2h 27m
Alaska Airlines
Deal found 2/8![Alaska Airlines logo]()
$109
This Trip.com deal was found by Cheapflights users on 2/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/912:03 pm
BOI
- SAN
1 stop13h 02m
Frontier
Deal found 2/10![Frontier logo]()
$110
This CheapOair deal was found by Cheapflights users on 2/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/1912:36 pm
BOI
- SAN
1 stop20h 04m
Frontier
Deal found 2/10![Frontier logo]()
$113
This United Airlines deal was found by Cheapflights users on 2/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/76:59 pm
BOI
- SAN
1 stop6h 17m
United Airlines
Deal found 2/8![United Airlines logo]()
$114
This Kiwi.com deal was found by Cheapflights users on 2/9. 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 3/164:02 pm
BOI
- SAN
1 stop5h 10m
Alaska Airlines
Deal found 2/9![Alaska Airlines logo]()
$117
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 February 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $157 (Alaska Airlines) |
One-way from | $79 (Alaska Airlines) |
Popular in | March |
Cheapest in | October |
Average price | $217 |
Good round-trip deal | $187 or less |
Good one-way deal | $88 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 February 11, 2026.
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
Tue 3/10
7:05 am-8:25 am
Nonstop2h 20m
San Diego
Tue 3/17
6:55 pm-10:15 pm
Nonstop2h 20m
$157
BoiseSan Diego
BOI - SAN
BOISAN
Boise Air Term. Gowen Fld
Wed 4/1
7:05 am-8:25 am
Nonstop2h 20m
San Diego
Wed 4/1
6:55 pm-10:15 pm
Nonstop2h 20m
$157
BoiseSan Diego
BOI - SAN
BOISAN
Boise Air Term. Gowen Fld
Tue 4/7
6:32 am-7:56 am
Nonstop2h 24m
San Diego
Tue 4/14
6:15 am-3:29 pm
1 stop8h 14m
$167
BoiseSan Diego
BOI - SAN
BOISAN
Boise Air Term. Gowen Fld
Tue 3/10
7:00 am-8:26 am
Nonstop2h 26m
San Diego
Tue 3/17
8:39 am-3:08 pm
1 stop5h 29m
$167
BoiseSan Diego
BOI - SAN
BOISAN
Boise Air Term. Gowen Fld
Wed 4/29
7:43 am-9:05 am
Nonstop2h 22m
San Diego
Sat 5/2
7:15 am-3:33 pm
1 stop7h 18m
$167
BoiseSan Diego
BOI - SAN
BOISAN
Boise Air Term. Gowen Fld
Tue 3/3
7:00 am-8:26 am
Nonstop2h 26m
San Diego
Wed 3/4
4:52 pm-10:34 pm
1 stop4h 42m
$167
BoiseSan Diego
BOI - SAN
BOISAN
Boise Air Term. Gowen Fld
Sat 4/11
6:32 am-7:56 am
Nonstop2h 24m
San Diego
Mon 4/13
8:18 pm-11:47 pm
Nonstop2h 29m
$167
BoiseSan Diego
BOI - SAN
BOISAN
Boise Air Term. Gowen Fld
Tue 4/7
10:05 am-5:45 pm
2 stops8h 40m
San Diego
Tue 4/14
1:20 pm-4:40 pm
Nonstop2h 20m
$172
BoiseSan Diego
BOI - SAN
BOISAN
Boise Air Term. Gowen Fld
Tue 5/12
7:43 am-9:05 am
Nonstop2h 22m
$79
BoiseSan Diego
BOI - SAN
BOISAN
Boise Air Term. Gowen Fld
Tue 3/10
7:05 am-8:25 am
Nonstop2h 20m
$79
Showing 1-10 of 20 results
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 February.
| 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 Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | 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
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 February 6, 2026.
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 $168). 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 February 11, 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 in the evening, which can drop the price by up to 14% 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 February 7, 2026.
Travelers seeking maximum savings on their Boise to San Diego flight should consider departing on Wednesday evenings 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 February 11, 2026.
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.
Entertainment
7.0
Comfort
7.8
Boarding
8.1
Crew
8.5
Overall
8.0
Food
7.1
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Entertainment
7.0
Comfort
7.8
Boarding
8.1
Crew
8.5
Overall
8.0
Food
7.1
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Entertainment
7.0
Comfort
7.8
Boarding
8.1
Crew
8.5
Overall
8.0
Food
7.1
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Entertainment
7.0
Comfort
7.8
Boarding
8.1
Crew
8.5
Overall
8.0
Food
7.1
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Entertainment
7.0
Comfort
7.8
Boarding
8.1
Crew
8.5
Overall
8.0
Food
7.1
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Entertainment
7.0
Comfort
7.8
Boarding
8.1
Crew
8.5
Overall
8.0
Food
7.1
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Related info for your journey
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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 February 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$58 | Average$190 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$108 | Average$286 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$108 | Average$216 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$134 | Average$283 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$142 | Average$272 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$176 | Average$295 | FlexibilityNo cancel fee | On-time63% |