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$57+ Cheap flights from Idaho to San Diego (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 8/22. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SAN
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
1 adult, Economy
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Cheap flight deals from Idaho to San Diego

Keep the following information in mind while searching for Idaho to San Diego flight deals. Data was last updated junio 12, 2025.

Round-trip from

$177
(Delta)

One-way from

$59
(Mytrip)

Popular in

November

Cheapest in

April

Average price

$295

Good round-trip deal

$267 or less

Good one-way deal

$163 or less
From Idaho to San Diego
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One-way flight from Idaho to San Diego
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Highest demand for flights based on searches. 9% potential increase in price ($33 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from Idaho to San Diego.
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Price to beat on a one-way flight from Idaho to San Diego.
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Find flight deals from Idaho to San Diego

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

This Delta deal was found by Cheapflights users on 6/10. 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.
mié. 8/279:00 amBOI - SAN
1 stop6h 40mDelta
sáb. 8/301:38 pmSAN - BOI
1 stop4h 27mDelta
Deal found 6/10$177
This Delta deal was found by Cheapflights users on 6/11. 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.
vie. 8/153:25 pmGEG - SAN
1 stop7h 26mDelta
lun. 8/181:57 pmSAN - GEG
1 stop7h 14mDelta
Deal found 6/11$177
This Hawaiian Airlines deal was found by Cheapflights users on 6/11. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/3012:33 pmGEG - SAN
1 stop4h 33mHawaiian Airlines
sáb. 11/16:06 pmSAN - GEG
1 stop5h 09mHawaiian Airlines
Deal found 6/11$184
This Mytrip deal was found by Cheapflights users on 6/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 7/118:54 amBOI - SAN
Nonstop2h 25mMultiple Airlines
lun. 7/146:15 amSAN - BOI
1 stop11h 37mMultiple Airlines
Deal found 6/10$189
This Mytrip deal was found by Cheapflights users on 6/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 7/147:48 pmBOI - SAN
1 stop23h 07mSpirit Airlines
jue. 7/179:40 pmSAN - BOI
1 stop20h 12mSpirit Airlines
Deal found 6/12$196
This Hawaiian Airlines deal was found by Cheapflights users on 6/10. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/277:07 amBOI - SAN
Nonstop2h 23mHawaiian Airlines
sáb. 8/308:21 pmSAN - BOI
Nonstop2h 22mHawaiian Airlines
Deal found 6/10$197
This Mytrip deal was found by Cheapflights users on 6/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 7/286:12 pmIDA - SAN
1 stop16h 43mMultiple Airlines
lun. 8/410:55 amSAN - IDA
1 stop6h 38mMultiple Airlines
Deal found 6/11$204
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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.
mar. 7/224:20 pmGEG - SAN
1 stop4h 59mAlaska Airlines
mié. 7/308:59 pmSAN - GEG
Nonstop2h 45mAlaska Airlines
Deal found 6/10$205
This Alaska Airlines deal was found by Cheapflights users on 6/9. 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.
mar. 9/97:00 amBOI - SAN
1 stop15h 19mAlaska Airlines
vie. 9/128:55 amSAN - BOI
Nonstop2h 23mAlaska Airlines
Deal found 6/9$210
This American Airlines deal was found by Cheapflights users on 6/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/204:11 pmJAC - SAN
1 stop7h 19mAmerican Airlines
sáb. 8/239:45 amSAN - JAC
2 stops8h 01mAmerican Airlines
Deal found 6/12$214
This Mytrip deal was found by Cheapflights users on 6/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/12:45 pmGEG - SAN
2 stops27h 41mMultiple Airlines
sáb. 7/56:15 amSAN - GEG
1 stop26h 28mMultiple Airlines
Deal found 6/11$225
This Southwest deal was found by Cheapflights users on 6/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 7/316:25 pmBOI - SAN
1 stop5h 00mSouthwest
lun. 8/47:00 amSAN - BOI
1 stop6h 05mSouthwest
Deal found 6/12$226

Cheapflights Fare Finder

Customize your flight search to find flights from Idaho 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 junio 12, 2025.
Use the filters below to find and compare flights from Idaho to San Diego that are best for you.

Fly from

Idaho

Fly to

San Diego

Route

Depart

Return

Price

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

mié. 8/27

9:00 am-2:40 pm

1 stop6h 40m

San Diego

sáb. 8/30

1:38 pm-7:05 pm

1 stop4h 27m

$177

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

vie. 8/15

3:25 pm-10:51 pm

1 stop7h 26m

San Diego

lun. 8/18

1:57 pm-9:11 pm

1 stop7h 14m

$177

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

jue. 10/30

12:33 pm-5:06 pm

1 stop4h 33m

San Diego

sáb. 11/1

6:06 pm-11:15 pm

1 stop5h 09m

$184

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

vie. 7/11

8:54 am-10:19 am

Nonstop2h 25m

San Diego

lun. 7/14

6:15 am-6:52 pm

1 stop11h 37m

$189

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

lun. 7/14

7:48 pm-5:55 pm

1 stop23h 07m

San Diego

jue. 7/17

9:40 pm-6:52 pm

1 stop20h 12m

$196

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

mié. 8/27

7:07 am-8:30 am

Nonstop2h 23m

San Diego

sáb. 8/30

8:21 pm-11:43 pm

Nonstop2h 22m

$197

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

sáb. 8/16

8:21 pm-9:45 pm

Nonstop2h 24m

San Diego

mar. 8/19

9:01 am-11:41 am

1 stop25h 40m

$200

Idaho FallsSan Diego

IDA - SAN

IDASAN

Idaho Falls Fanning Field

lun. 7/28

6:12 pm-9:55 am

1 stop16h 43m

San Diego

lun. 8/4

10:55 am-6:33 pm

1 stop6h 38m

$204

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

mar. 7/22

4:20 pm-9:19 pm

1 stop4h 59m

San Diego

mié. 7/30

8:59 pm-11:44 pm

Nonstop2h 45m

$205

JacksonSan Diego

JAC - SAN

JACSAN

Jackson Hole

mié. 8/20

4:11 pm-10:30 pm

1 stop7h 19m

San Diego

sáb. 8/23

9:45 am-6:46 pm

2 stops8h 01m

$214

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 52 results
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Best time to book a flight from Idaho to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Idaho 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 Idaho to San Diego

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

Currently, August is the cheapest month in which you can book a flight from Idaho to San Diego (average of $286). Flying from Idaho 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 ID to SAN?

Find hourly flight availability from Idaho 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 junio 12, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Idaho to San Diego as you normally would.

Weekly flight availability from Idaho to San Diego

Explore weekly flight availability from Idaho to San Diego. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated junio 12, 2025.

The most flights from USID to SAN are scheduled on a Monday (6 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 on average).

Rainfall in San Diego by month

Plan your trip to San Diego by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Diego ranges from 0.0 - 2.3 inches per month. February is typically the wettest month, when rainfall can reach 2.3 in. July is typically the driest time to visit San Diego when rainfall is around 0.0 in.

Temperature in San Diego by month

Plan your trip to San Diego by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).

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 junio 12, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and Delta from Idaho to San Diego to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from Idaho 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 airport do you fly into for flights to San Diego from Idaho?

    Most people fly into San Diego (SAN) if they book a flight to San Diego from Idaho. San Diego is conveniently located just 2.6 mi from San Diego’s city center.

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

    This flight path from Idaho to San Diego was viewed by 22 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the cheapest airlines to fly from Idaho to San Diego one-way?

    The cheapest airline one-way is Spirit Airlines, with whom users have recently found tickets for as low as $59. However, be on the lookout for offers from Alaska Airlines and Delta, as they are both options that can get you from Idaho to San Diego for a low price.

  • What are the most popular routes from Idaho to San Diego?

    While some choose either Spokane - San Diego or Idaho Falls Fanning Field - San Diego, Boise Air Term. Gowen Fld - San Diego is the most popular route from Idaho to San Diego.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Idaho to San Diego on time: Japan Airlines (98%), Horizon Air (95%), Hawaiian Airlines (94%).

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

    The cheapest flight price from Idaho to San Diego is $101. On average you can expect to pay $260. The most popular route, (Boise Air Term. Gowen Fld - San Diego), can usually be booked for $155.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Idaho 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 Idaho to San Diego?

    Currently, August is the cheapest month in which you can book a flight from Idaho to San Diego (average of $286). Flying from Idaho 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 Idaho?

Book flights to Idaho if you plan to visit one of these locations
El Cajon
Chula Vista
National City
Imperial Beach
La Mesa
Alpine
Lemon Grove
Poway
Santee
Coronado

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Top 6 airlines flying from Idaho to San Diego

Discover the top 6 airlines that operate flights from Idaho 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 junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$93Average$156FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$138Average$310FlexibilityNo cancel feeOn-time85%
DeltaCheapest$156Average$388FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$185Average$324FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$186Average$338FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$187Average$318FlexibilityNo cancel feeOn-time63%

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