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$40+ 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 3/19. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SAN
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
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 February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$167
(Delta)

One-way from

$40
(Mytrip)

Popular in

November

Cheapest in

April

Average price

$294

Good round-trip deal

$284 or less

Good one-way deal

$138 or less
Provider with most accurate pricing for Boise Air Term. Gowen Fld-San Diego flight deals.
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Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-San Diego flights.
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From 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. 11% potential increase in price ($39 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in February 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 February 20, 2025.

This Delta deal was found by Cheapflights users on 2/19. 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.
Wed 3/129:50 amGEG - SAN
1 stop8h 16mDelta
Wed 3/196:58 pmSAN - GEG
1 stop5h 07mDelta
Deal found 2/19$167
This Hawaiian Airlines deal was found by Cheapflights users on 2/19. 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.
Wed 3/127:25 amGEG - SAN
Nonstop2h 55mHawaiian Airlines
Wed 3/194:00 pmSAN - GEG
1 stop5h 01mHawaiian Airlines
Deal found 2/19$184
This Southwest deal was found by Cheapflights users on 2/20. 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 3/2912:45 pmBOI - SAN
Nonstop2h 10mSouthwest
Tue 4/11:45 pmSAN - BOI
1 stop7h 05mSouthwest
Deal found 2/20$187
This CheapOair deal was found by Cheapflights users on 2/19. 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.
Sun 3/27:41 pmBOI - SAN
1 stop14h 20mSpirit Airlines
Mon 3/108:25 amSAN - BOI
1 stop27h 07mSpirit Airlines
Deal found 2/19$192
This Southwest deal was found by Cheapflights users on 2/19. 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 4/142:30 pmGEG - SAN
1 stop4h 20mSouthwest
Thu 4/1711:30 amSAN - GEG
1 stop4h 10mSouthwest
Deal found 2/19$192
This Expedia deal was found by Cheapflights users on 2/20. 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.
Mon 3/101:31 pmBOI - SAN
1 stop11h 03mMultiple Airlines
Mon 3/176:09 pmSAN - BOI
Nonstop2h 20mMultiple Airlines
Deal found 2/20$195
This Alaska Airlines deal was found by Cheapflights users on 2/20. 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 3/2510:11 amBOI - SAN
1 stop7h 18mAlaska Airlines
Mon 3/315:07 pmSAN - BOI
1 stop23h 35mAlaska Airlines
Deal found 2/20$199
This Alaska Airlines deal was found by Cheapflights users on 2/20. 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 4/297:00 amGEG - SAN
Nonstop2h 50mAlaska Airlines
Wed 5/79:00 amSAN - GEG
1 stop7h 55mAlaska Airlines
Deal found 2/20$203
This American Airlines deal was found by Cheapflights users on 2/19. 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.
Wed 3/263:48 pmJAC - SAN
1 stop7h 23mAmerican Airlines
Wed 4/26:30 amSAN - JAC
1 stop7h 28mAmerican Airlines
Deal found 2/19$209
This Delta deal was found by Cheapflights users on 2/20. 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 8/121:15 pmBOI - SAN
1 stop6h 11mDelta
Tue 8/193:20 pmSAN - BOI
1 stop5h 47mDelta
Deal found 2/20$217
This United Airlines deal was found by Cheapflights users on 2/20. 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.
Sat 7/266:43 pmBOI - SAN
1 stop4h 59mUnited Airlines
Sat 8/210:43 amSAN - BOI
1 stop4h 55mUnited Airlines
Deal found 2/20$218
This Hawaiian Airlines deal was found by Cheapflights users on 2/20. 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.
Fri 4/185:27 pmBOI - SAN
Nonstop2h 20mHawaiian Airlines
Sun 4/206:15 amSAN - BOI
1 stop6h 00mHawaiian Airlines
Deal found 2/20$237

Find flights from Idaho to San Diego within your budget

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 February 20, 2025.

Fly from

Idaho

Fly to

San Diego

Route

Depart

Return

Price

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Wed 3/12

9:50 am-6:06 pm

1 stop8h 16m

San Diego

Wed 3/19

6:58 pm-12:05 am

1 stop5h 07m

$167

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Tue 3/25

4:25 pm-10:25 pm

1 stop6h 00m

San Diego

Wed 4/16

7:25 am-11:35 am

1 stop4h 10m

$172

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Tue 3/11

7:25 am-10:20 am

Nonstop2h 55m

San Diego

Tue 3/18

1:43 pm-8:41 pm

1 stop6h 58m

$184

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

Sat 3/29

12:45 pm-1:55 pm

Nonstop2h 10m

San Diego

Tue 4/1

1:45 pm-9:50 pm

1 stop7h 05m

$187

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Sun 3/2

7:44 pm-10:56 pm

1 stop27h 12m

San Diego

Wed 3/5

8:25 am-8:42 am

1 stop24h 17m

$188

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

Sun 3/2

7:41 pm-9:01 am

1 stop14h 20m

San Diego

Mon 3/10

8:25 am-12:32 pm

1 stop27h 07m

$192

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

Mon 3/10

1:31 pm-11:34 pm

1 stop11h 03m

San Diego

Mon 3/17

6:09 pm-9:29 pm

Nonstop2h 20m

$195

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

Tue 3/25

10:11 am-4:29 pm

1 stop7h 18m

San Diego

Mon 3/31

5:07 pm-5:42 pm

1 stop23h 35m

$199

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Wed 3/19

6:19 pm-11:59 pm

1 stop5h 40m

San Diego

Sat 5/31

8:59 pm-11:47 pm

Nonstop2h 48m

$203

JacksonSan Diego

JAC - SAN

JACSAN

Jackson Hole

Wed 3/26

3:48 pm-10:11 pm

1 stop7h 23m

San Diego

Wed 4/2

6:30 am-2:58 pm

1 stop7h 28m

$209

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 43 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.

Travel insights for flights from Idaho to San Diego

Get recent, data-driven insights about flights from Idaho to San Diego including ideal travel times, pricing trends, and more.

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 February 20, 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.

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 February 20, 2025.
Peruse reviews from past customers who have flown with Southwest, Alaska Airlines 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.
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Comfort

8.1

Overall

8.1

Crew

8.7

Entertainment

7.6

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Comfort

8.1

Overall

8.1

Crew

8.7

Entertainment

7.6

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Alaska Airlines
8.0
Very good
9,697 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Comfort

8.1

Overall

8.1

Crew

8.7

Entertainment

7.6

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Delta
8.0
Very good
8,219 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Comfort

8.1

Overall

8.1

Crew

8.7

Entertainment

7.6

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Hawaiian Airlines
7.9
Good
2,317 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Comfort

8.1

Overall

8.1

Crew

8.7

Entertainment

7.6

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

United Airlines
7.4
Good
8,765 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Comfort

8.1

Overall

8.1

Crew

8.7

Entertainment

7.6

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

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 $40. However, be on the lookout for offers from Southwest and Hawaiian Airlines, 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 Boise Air Term. Gowen Fld - San Diego or Jackson Hole - San Diego, Spokane - 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: SkyWest Airlines (78%), Japan Airlines (77%), Southwest (77%).

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

    The cheapest flight price from Idaho to San Diego is $78. On average you can expect to pay $297. The most popular route, (Spokane - San Diego), can usually be booked for $156.

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

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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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$85Average$149FlexibilityNo cancel feeOn-time65%
DeltaCheapest$175Average$438FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$183Average$333FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$186Average$343FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$228Average$333FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$254Average$411FlexibilityNo cancel feeOn-time71%
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