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$55+ 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 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SAN
dic. 6 — dic. 131
sáb. 12/6
sáb. 12/13
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 noviembre 6, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$157
(Alaska Airlines)

One-way from

$55
(Priceline)

Popular in

March

Cheapest in

September

Average price

$372

Good round-trip deal

$247 or less

Good one-way deal

$78 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. 4% potential increase in price ($14 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in November 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 noviembre 6, 2025.

This Travelocity deal was found by Cheapflights users on 11/4. 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.
jue. 12/412:08 pmGEG - SAN
1 stop11h 51mMultiple Airlines
sáb. 12/68:58 pmSAN - GEG
Nonstop3h 01mMultiple Airlines
Deal found 11/4$154
This Alaska Airlines deal was found by Cheapflights users on 11/6. 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. 12/167:00 amGEG - SAN
Nonstop3h 00mAlaska Airlines
lun. 1/58:59 pmSAN - GEG
Nonstop3h 00mAlaska Airlines
Deal found 11/6$157
This Alaska Airlines deal was found by Cheapflights users on 11/5. 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. 12/28:47 pmGEG - SAN
1 stop16h 00mAlaska Airlines
sáb. 12/138:58 pmSAN - GEG
Nonstop3h 01mAlaska Airlines
Deal found 11/5$162
This Expedia deal was found by Cheapflights users on 11/6. 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.
dom. 12/77:00 amGEG - SAN
Nonstop3h 00mMultiple Airlines
jue. 12/1110:57 amSAN - GEG
1 stop5h 09mMultiple Airlines
Deal found 11/6$164
This Delta deal was found by Cheapflights users on 11/4. 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. 12/311:44 amBOI - SAN
1 stop7h 29mDelta
jue. 12/43:15 pmSAN - BOI
1 stop7h 49mDelta
Deal found 11/4$167
This Delta deal was found by Cheapflights users on 11/4. 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.
dom. 12/145:05 amGEG - SAN
1 stop5h 03mDelta
dom. 12/213:25 pmSAN - GEG
1 stop5h 50mDelta
Deal found 11/4$168
This Alaska Airlines deal was found by Cheapflights users on 11/5. 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.
mié. 11/267:00 amBOI - SAN
Nonstop2h 24mAlaska Airlines
mié. 12/38:29 pmSAN - BOI
Nonstop2h 26mAlaska Airlines
Deal found 11/5$172
This Delta deal was found by Cheapflights users on 11/5. 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.
mar. 12/24:35 pmGEG - SAN
1 stop7h 24mDelta
sáb. 12/139:50 amSAN - GEG
1 stop5h 50mDelta
Deal found 11/5$174
This Cheapflightsfares deal was found by Cheapflights users on 11/5. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/47:00 amBOI - SAN
Nonstop2h 29mAlaska Airlines
jue. 12/118:29 pmSAN - BOI
Nonstop2h 26mAlaska Airlines
Deal found 11/5$175
This Southwest deal was found by Cheapflights users on 11/4. 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.
mié. 12/37:50 amBOI - SAN
1 stop4h 55mSouthwest
dom. 12/76:20 amSAN - BOI
1 stop5h 40mSouthwest
Deal found 11/4$176
This Alaska Airlines deal was found by Cheapflights users on 11/5. 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.
lun. 12/87:00 amBOI - SAN
Nonstop2h 29mAlaska Airlines
jue. 12/118:29 pmSAN - BOI
Nonstop2h 26mAlaska Airlines
Deal found 11/5$177
This Alaska Airlines deal was found by Cheapflights users on 11/6. 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.
jue. 12/186:50 amGEG - SAN
Nonstop3h 04mAlaska Airlines
jue. 1/18:59 pmSAN - GEG
Nonstop3h 00mAlaska Airlines
Deal found 11/6$177

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 noviembre 6, 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

sáb. 1/24

3:00 pm-5:50 pm

Nonstop2h 50m

San Diego

dom. 1/25

7:27 pm-10:26 pm

Nonstop2h 59m

$157

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

mar. 12/2

8:47 pm-10:13 am

1 stop13h 26m

San Diego

sáb. 12/6

8:58 pm-11:59 pm

Nonstop3h 01m

$162

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

mar. 12/9

5:51 am-3:06 pm

1 stop9h 15m

San Diego

mar. 12/16

8:58 pm-11:59 pm

Nonstop3h 01m

$162

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

mié. 12/3

11:44 am-6:13 pm

1 stop7h 29m

San Diego

jue. 12/4

3:15 pm-12:04 am

1 stop7h 49m

$167

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

sáb. 12/6

7:46 pm-9:14 pm

Nonstop2h 28m

San Diego

dom. 12/7

9:10 am-12:42 pm

Nonstop2h 32m

$167

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

mar. 12/2

7:00 am-8:29 am

Nonstop2h 29m

San Diego

jue. 12/4

2:15 pm-10:56 pm

1 stop7h 41m

$167

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

mié. 3/4

7:15 pm-11:59 pm

1 stop4h 44m

San Diego

mar. 3/10

8:59 pm-11:37 pm

Nonstop2h 38m

$167

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

vie. 1/16

6:05 am-12:48 pm

1 stop6h 43m

San Diego

vie. 1/23

6:50 am-3:00 pm

1 stop8h 10m

$168

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

dom. 12/14

5:05 am-10:08 am

1 stop5h 03m

San Diego

dom. 12/21

3:25 pm-9:15 pm

1 stop5h 50m

$168

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

mié. 2/18

7:00 am-9:50 am

Nonstop2h 50m

San Diego

lun. 2/23

7:00 am-12:14 am

1 stop17h 14m

$172

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/5

Showing 1-10 of 60 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, March is the cheapest month in which you can book a flight from Idaho to San Diego (average of $75). Flying from Idaho to San Diego in November is currently the most expensive (average of $147). 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 noviembre 6, 2025.

When flying from Idaho 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 24% versus a flight at noon.

What is the cheapest day to fly from Idaho to San Diego?

Use this chart to determine the cheapest time to fly round-trip from Idaho to San Diego. Price data was last updated on November 2, 2025.

Travelers seeking maximum savings on their Idaho to San Diego flight should consider departing on Tuesday at noon 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.

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 noviembre 6, 2025.

The most flights from USID to SAN are scheduled on a Thursday (6 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (1 on average).

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 15 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Idaho to San Diego?

    Airlines like Alaska Airlines and Delta fly from Idaho to San Diego in about 2h 50m. The time it takes to get you to your destination can typically vary by up to 4h 39m. There are 1028 mi between Idaho and San Diego. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 $61. 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 (93%), Hawaiian Airlines (91%), Alaska Airlines (90%).

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

    The cheapest flight price from Idaho to San Diego is $68. On average you can expect to pay $328. The most popular route, (Boise Air Term. Gowen Fld - San Diego), can usually be booked for $134.

  • 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, March is the cheapest month in which you can book a flight from Idaho to San Diego (average of $75). Flying from Idaho to San Diego in November is currently the most expensive (average of $147). 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 San Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
Chula Vista
Coronado
La Mesa
Poway
Lemon Grove
National City

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Alternative routes for Idaho to San Diego

See prices for flight routes from nearby airports that may be better suited for you.
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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 noviembre 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$96Average$175FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$137Average$296FlexibilityNo cancel feeOn-time85%
DeltaCheapest$147Average$396FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$149Average$314FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$175Average$301FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$186Average$324FlexibilityNo cancel feeOn-time69%

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