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$46+ 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 6/2. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SAN
May 5 — May 121
Mon 5/5
Mon 5/12
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 April 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$178
(Mytrip)

One-way from

$46
(FlightHub)

Popular in

November

Cheapest in

May

Average price

$273

Good round-trip deal

$250 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. 10% potential increase in price ($37 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 April 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 April 30, 2025.

This Mytrip deal was found by Cheapflights users on 4/28. 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.
Sun 5/1810:23 amGEG - SAN
1 stop13h 33mMultiple Airlines
Wed 5/218:48 pmSAN - GEG
1 stop11h 50mMultiple Airlines
Deal found 4/28$178
This Alaska Airlines deal was found by Cheapflights users on 4/28. 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 6/14:16 pmGEG - SAN
1 stop7h 43mAlaska Airlines
Wed 6/48:59 pmSAN - GEG
Nonstop2h 48mAlaska Airlines
Deal found 4/28$185
This Hawaiian Airlines deal was found by Cheapflights users on 4/29. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/255:49 pmGEG - SAN
1 stop6h 10mHawaiian Airlines
Sun 6/18:59 pmSAN - GEG
Nonstop2h 48mHawaiian Airlines
Deal found 4/29$187
This Hawaiian Airlines deal was found by Cheapflights users on 4/27. 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.
Tue 5/207:58 pmBOI - SAN
Nonstop2h 21mHawaiian Airlines
Sat 5/247:31 pmSAN - BOI
Nonstop2h 19mHawaiian Airlines
Deal found 4/27$197
This Delta deal was found by Cheapflights users on 4/27. 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.
Thu 5/295:00 amGEG - SAN
1 stop8h 00mDelta
Mon 6/211:15 amSAN - GEG
1 stop5h 45mDelta
Deal found 4/27$197
This Frontier deal was found by Cheapflights users on 4/28. 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 5/152:57 pmBOI - SAN
1 stop10h 16mFrontier
Sun 5/186:25 amSAN - BOI
1 stop6h 12mFrontier
Deal found 4/28$198
This Alaska Airlines deal was found by Cheapflights users on 4/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/275:34 pmBOI - SAN
1 stop15h 53mAlaska Airlines
Sat 5/318:10 amSAN - BOI
Nonstop2h 28mAlaska Airlines
Deal found 4/29$200
This Travelocity deal was found by Cheapflights users on 4/28. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/158:54 amBOI - SAN
Nonstop2h 25mMultiple Airlines
Mon 8/183:10 pmSAN - BOI
1 stop4h 34mMultiple Airlines
Deal found 4/28$204
This Southwest deal was found by Cheapflights users on 4/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1412:05 pmBOI - SAN
Nonstop2h 10mSouthwest
Fri 8/151:05 pmSAN - BOI
Nonstop2h 15mSouthwest
Deal found 4/29$207
This Southwest deal was found by Cheapflights users on 4/28. 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 7/116:10 amGEG - SAN
1 stop7h 45mSouthwest
Sun 7/137:45 pmSAN - GEG
1 stop5h 10mSouthwest
Deal found 4/28$213
This Delta deal was found by Cheapflights users on 4/28. 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 7/186:04 pmBOI - SAN
1 stop6h 38mDelta
Tue 7/227:15 pmSAN - BOI
1 stop3h 54mDelta
Deal found 4/28$217
This CheapOair deal was found by Cheapflights users on 4/28. 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 5/2312:16 pmBOI - SAN
1 stop8h 37mSpirit Airlines
Sun 5/258:48 pmSAN - BOI
1 stop13h 33mSpirit Airlines
Deal found 4/28$219

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 April 30, 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

Sun 5/18

10:23 am-11:56 pm

1 stop13h 33m

San Diego

Wed 5/21

8:48 pm-8:38 am

1 stop11h 50m

$178

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Sun 6/1

4:16 pm-11:59 pm

1 stop7h 43m

San Diego

Wed 6/4

8:59 pm-11:47 pm

Nonstop2h 48m

$185

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Sun 5/25

5:49 pm-11:59 pm

1 stop6h 10m

San Diego

Sun 6/1

8:59 pm-11:47 pm

Nonstop2h 48m

$187

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Thu 5/29

5:00 am-1:00 pm

1 stop8h 00m

San Diego

Mon 6/2

11:15 am-5:00 pm

1 stop5h 45m

$197

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

Tue 5/27

7:58 pm-9:19 pm

Nonstop2h 21m

San Diego

Fri 5/30

8:10 am-11:38 am

Nonstop2h 28m

$197

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

Thu 5/15

2:57 pm-12:13 am

1 stop10h 16m

San Diego

Sun 5/18

6:25 am-1:37 pm

1 stop6h 12m

$198

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

Mon 5/12

12:16 pm-7:53 pm

1 stop8h 37m

San Diego

Wed 5/14

1:23 pm-1:37 pm

1 stop23h 14m

$206

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Fri 7/11

6:10 am-1:55 pm

1 stop7h 45m

San Diego

Sun 7/13

7:45 pm-12:55 am

1 stop5h 10m

$213

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

Thu 7/17

3:43 pm-6:54 pm

1 stop4h 11m

San Diego

Tue 7/22

7:15 pm-12:09 am

1 stop3h 54m

$217

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

Fri 5/16

12:16 pm-4:45 pm

2 stops29h 29m

San Diego

Sun 5/18

6:58 pm-11:21 am

1 stop15h 23m

$222

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 48 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 April 30, 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 April 30, 2025.

The most flights from USID to SAN are scheduled on a Tuesday (7 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (4 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 April 30, 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
9,961 reviews

Comfort

7.9

Food

7.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Boarding

8.2

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
9,961 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Comfort

7.9

Food

7.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Boarding

8.2

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
4,295 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Comfort

7.9

Food

7.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Boarding

8.2

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
7,929 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Comfort

7.9

Food

7.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Boarding

8.2

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
2,405 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Comfort

7.9

Food

7.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Boarding

8.2

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
8,696 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Comfort

7.9

Food

7.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Boarding

8.2

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 Spirit Airlines, with whom users have recently found tickets for as low as $46. 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 Boise Air Term. Gowen Fld - San Diego or Idaho Falls Fanning Field - 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: Japan Airlines (95%), SkyWest Airlines (93%), Hawaiian Airlines (91%).

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

    The cheapest flight price from Idaho to San Diego is $98. On average you can expect to pay $280. The most popular route, (Spokane - 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
Lemon Grove
National City
Imperial Beach
La Mesa
Alpine
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 April 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$85Average$152FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$134Average$307FlexibilityNo cancel feeOn-time85%
DeltaCheapest$166Average$406FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$185Average$318FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$186Average$327FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$192Average$341FlexibilityNo cancel feeOn-time69%

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