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$71+ 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 8/21. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SAN
Jul 7 — Jul 141
Mon 7/7
Mon 7/14
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 July 2, 2025.

Round-trip from

$176
(Mytrip)

One-way from

$71
(Priceline)

Popular in

November

Cheapest in

October

Average price

$306

Good round-trip deal

$272 or less

Good one-way deal

$152 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 ($34 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 July 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 July 2, 2025.

This Mytrip deal was found by Cheapflights users on 6/29. 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.
Mon 8/45:52 pmGEG - SAN
2 stops24h 03mMultiple Airlines
Sat 8/97:00 pmSAN - GEG
1 stop13h 43mMultiple Airlines
Deal found 6/29$176
This Delta deal was found by Cheapflights users on 6/30. 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 8/1610:45 amBOI - SAN
1 stop6h 09mDelta
Sat 8/231:38 pmSAN - BOI
1 stop4h 27mDelta
Deal found 6/30$177
This Delta deal was found by Cheapflights users on 6/30. 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 8/255:00 amGEG - SAN
1 stop5h 00mDelta
Thu 9/47:30 amSAN - GEG
1 stop5h 11mDelta
Deal found 6/30$177
This FlightHub deal was found by Cheapflights users on 6/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/316:06 pmBOI - SAN
1 stop6h 31mSpirit Airlines
Wed 9/37:01 pmSAN - BOI
1 stop22h 49mSpirit Airlines
Deal found 6/30$178
This Kiwi.com deal was found by Cheapflights users on 7/2. 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.
Sat 8/164:50 pmBOI - SAN
1 stop7h 10mHawaiian Airlines
Sat 8/238:55 amSAN - BOI
Nonstop2h 23mHawaiian Airlines
Deal found 7/2$182
This Alaska Airlines deal was found by Cheapflights users on 6/30. 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 8/236:40 amGEG - SAN
Nonstop2h 51mAlaska Airlines
Mon 9/18:03 pmSAN - GEG
Nonstop2h 49mAlaska Airlines
Deal found 6/30$183
This Hawaiian Airlines deal was found by Cheapflights users on 6/30. 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.
Thu 8/217:00 amGEG - SAN
Nonstop2h 52mHawaiian Airlines
Sun 8/246:15 amSAN - GEG
1 stop6h 28mHawaiian Airlines
Deal found 6/30$185
This Southwest deal was found by Cheapflights users on 7/1. 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 11/139:30 amGEG - SAN
1 stop6h 15mSouthwest
Mon 11/1710:20 amSAN - GEG
2 stops12h 05mSouthwest
Deal found 7/1$188
This United Airlines deal was found by Cheapflights users on 7/1. 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 8/205:00 amBOI - SAN
1 stop5h 09mUnited Airlines
Sun 8/246:15 amSAN - BOI
1 stop6h 15mUnited Airlines
Deal found 7/1$190
This Mytrip deal was found by Cheapflights users on 6/30. 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.
Mon 7/147:23 pmIDA - SAN
2 stops15h 32mMultiple Airlines
Thu 7/179:40 pmSAN - IDA
1 stop13h 04mMultiple Airlines
Deal found 6/30$201
This Alaska Airlines deal was found by Cheapflights users on 7/1. 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 8/77:12 pmBOI - SAN
1 stop5h 47mAlaska Airlines
Mon 8/116:57 pmSAN - BOI
1 stop4h 01mAlaska Airlines
Deal found 7/1$206
This Southwest deal was found by Cheapflights users on 6/30. 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 7/255:05 pmBOI - SAN
1 stop5h 10mSouthwest
Sun 7/278:30 amSAN - BOI
1 stop5h 15mSouthwest
Deal found 6/30$216

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 July 2, 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

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Mon 8/4

5:52 pm-5:55 pm

2 stops24h 03m

San Diego

Sat 8/9

7:00 pm-8:43 am

1 stop13h 43m

$176

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

Sat 8/16

10:45 am-3:54 pm

1 stop6h 09m

San Diego

Sat 8/23

1:38 pm-7:05 pm

1 stop4h 27m

$177

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Mon 8/25

5:00 am-10:00 am

1 stop5h 00m

San Diego

Thu 9/4

7:30 am-12:41 pm

1 stop5h 11m

$177

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

Sun 8/31

6:06 pm-11:37 pm

1 stop6h 31m

San Diego

Wed 9/3

7:01 pm-6:50 pm

1 stop22h 49m

$178

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

Sat 8/16

4:50 pm-11:00 pm

1 stop7h 10m

San Diego

Sat 8/23

8:55 am-12:18 pm

Nonstop2h 23m

$182

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Sat 8/23

6:40 am-9:31 am

Nonstop2h 51m

San Diego

Mon 9/1

8:03 pm-10:52 pm

Nonstop2h 49m

$183

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Tue 8/26

12:39 pm-8:18 pm

1 stop7h 39m

San Diego

Sat 8/30

8:03 pm-10:52 pm

Nonstop2h 49m

$186

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Thu 11/13

9:30 am-3:45 pm

1 stop6h 15m

San Diego

Mon 11/17

10:20 am-10:25 pm

2 stops12h 05m

$188

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

Wed 8/20

5:00 am-9:09 am

1 stop5h 09m

San Diego

Sun 8/24

6:15 am-1:30 pm

1 stop6h 15m

$190

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

Thu 10/2

5:57 pm-6:10 pm

2 stops25h 13m

San Diego

Sun 10/5

8:16 am-6:50 pm

1 stop9h 34m

$200

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

Showing 1-10 of 46 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 July 2, 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 July 2, 2025.

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

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 July 2, 2025.
Read through reviews of airlines operating flights from Idaho to San Diego, such as Alaska Airlines, Southwest, and Delta. 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

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Crew

8.5

Boarding

8.1

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

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Crew

8.5

Boarding

8.1

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
4,272 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Crew

8.5

Boarding

8.1

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
7,983 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,540 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Crew

8.5

Boarding

8.1

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
8,861 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Crew

8.5

Boarding

8.1

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 23 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 Frontier, with whom users have recently found tickets for as low as $71. However, be on the lookout for offers from Spirit 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%), SkyWest Airlines (90%), Alaska Airlines (90%).

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

    The cheapest flight price from Idaho to San Diego is $99. On average you can expect to pay $285. The most popular route, (Boise Air Term. Gowen Fld - San Diego), can usually be booked for $132.

  • 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
Coronado
National City
Lemon Grove
Imperial Beach
La Mesa
Poway
Alpine
Santee

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Alternative routes for Idaho to San Diego

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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 July 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$89Average$157FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$138Average$307FlexibilityNo cancel feeOn-time85%
DeltaCheapest$156Average$387FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$186Average$325FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$188Average$316FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$192Average$351FlexibilityNo cancel feeOn-time69%

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