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$51+ 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 3/26. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SAN
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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Cheap flight deals from Idaho to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Idaho (USID) to San Diego (SAN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2025.

Round-trip from

$156
(CheapOair)

One-way from

$51
(FlightHub)

Good round-trip deal

$247 or less

Good one-way deal

$173 or less
From Idaho to San Diego
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One-way flight from Idaho to San Diego
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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 January 21, 2025.

This CheapOair deal was found by Cheapflights users on 1/20. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/217:41 pmBOI - SAN
1 stop4h 15mSpirit Airlines
Mon 2/247:41 pmSAN - BOI
1 stop22h 05mSpirit Airlines
Deal found 1/20$156
This Delta deal was found by Cheapflights users on 1/21. 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 2/265:45 amBOI - SAN
1 stop5h 39mDelta
Wed 3/55:14 pmSAN - BOI
1 stop6h 04mDelta
Deal found 1/21$157
This Travelocity deal was found by Cheapflights users on 1/21. 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.
Sun 2/238:30 amBOI - SAN
Nonstop2h 28mMultiple Airlines
Thu 2/276:15 amSAN - BOI
1 stop11h 31mMultiple Airlines
Deal found 1/21$164
This Delta deal was found by Cheapflights users on 1/21. 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 4/86:55 pmGEG - SAN
1 stop4h 48mDelta
Wed 4/166:55 pmSAN - GEG
1 stop5h 23mDelta
Deal found 1/21$177
This Southwest deal was found by Cheapflights users on 1/21. 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 stop7h 15mSouthwest
Wed 4/167:00 amSAN - GEG
1 stop4h 05mSouthwest
Deal found 1/21$182
This Alaska Airlines deal was found by Cheapflights users on 1/21. 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.
Wed 4/97:10 amGEG - SAN
Nonstop2h 50mAlaska Airlines
Tue 4/158:31 pmSAN - GEG
Nonstop2h 56mAlaska Airlines
Deal found 1/21$184
This Alaska Airlines deal was found by Cheapflights users on 1/21. 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.
Wed 2/267:30 amBOI - SAN
2 stops13h 49mAlaska Airlines
Wed 3/51:39 pmSAN - BOI
1 stop5h 50mAlaska Airlines
Deal found 1/21$195
This Southwest deal was found by Cheapflights users on 1/21. 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 3/2812:05 pmBOI - SAN
Nonstop2h 15mSouthwest
Sat 4/53:55 pmSAN - BOI
Nonstop2h 10mSouthwest
Deal found 1/21$197
This United Airlines deal was found by Cheapflights users on 1/20. 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.
Thu 2/204:20 pmJAC - SAN
1 stop7h 20mUnited Airlines
Sun 2/236:15 amSAN - JAC
1 stop7h 13mUnited Airlines
Deal found 1/20$209
This Delta deal was found by Cheapflights users on 1/21. 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 2/145:35 pmJAC - SAN
1 stop7h 23mDelta
Tue 2/186:15 amSAN - JAC
1 stop5h 00mDelta
Deal found 1/21$237
This Delta deal was found by Cheapflights users on 1/19. 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.
Tue 2/256:00 amIDA - SAN
1 stop4h 10mDelta
Wed 2/265:14 pmSAN - IDA
1 stop4h 30mDelta
Deal found 1/19$237
This United Airlines deal was found by Cheapflights users on 1/21. 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.
Fri 3/285:25 pmBOI - SAN
1 stop6h 15mUnited Airlines
Sat 4/57:00 amSAN - BOI
1 stop5h 32mUnited Airlines
Deal found 1/21$241

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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

Fri 2/21

7:41 pm-10:56 pm

1 stop4h 15m

San Diego

Mon 2/24

7:41 pm-6:46 pm

1 stop22h 05m

$156

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

Wed 2/26

5:45 am-10:24 am

1 stop5h 39m

San Diego

Wed 3/5

5:14 pm-12:18 am

1 stop6h 04m

$157

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

Sun 2/23

8:30 am-9:58 am

Nonstop2h 28m

San Diego

Thu 2/27

6:15 am-6:46 pm

1 stop11h 31m

$164

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Tue 4/8

6:55 pm-11:43 pm

1 stop4h 48m

San Diego

Wed 4/16

6:55 pm-12:18 am

1 stop5h 23m

$177

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Mon 4/14

2:30 pm-9:45 pm

1 stop7h 15m

San Diego

Wed 4/16

7:00 am-11:05 am

1 stop4h 05m

$182

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Wed 4/9

7:10 am-10:00 am

Nonstop2h 50m

San Diego

Tue 4/15

8:31 pm-11:27 pm

Nonstop2h 56m

$184

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

Wed 2/26

7:30 am-8:19 pm

2 stops13h 49m

San Diego

Wed 3/5

1:39 pm-8:29 pm

1 stop5h 50m

$195

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

Fri 3/28

12:05 pm-1:20 pm

Nonstop2h 15m

San Diego

Sat 4/5

3:55 pm-7:05 pm

Nonstop2h 10m

$197

JacksonSan Diego

JAC - SAN

JACSAN

Jackson Hole

Thu 2/20

4:20 pm-10:40 pm

1 stop7h 20m

San Diego

Sun 2/23

6:15 am-2:28 pm

1 stop7h 13m

$209

JacksonSan Diego

JAC - SAN

JACSAN

Jackson Hole

Fri 2/14

5:35 pm-11:58 pm

1 stop7h 23m

San Diego

Tue 2/18

6:15 am-12:15 pm

1 stop5h 00m

$237

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 39 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 January 21, 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 January 21, 2025.

The most flights from USID to SAN are scheduled on a Friday (6 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 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 January 21, 2025.
Peruse reviews from past customers who have flown with Southwest, United Airlines and American Airlines 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
4,662 reviews

Entertainment

7.7

Food

7.2

Boarding

8.2

Crew

8.7

Overall

8.1

Comfort

8.1

Reviews

1 / 10

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

Southwest
8.1
Very good
4,662 reviews
Southwest
8.1
Very good
4,662 reviews

Entertainment

7.7

Food

7.2

Boarding

8.2

Crew

8.7

Overall

8.1

Comfort

8.1

Reviews

1 / 10

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

Alaska Airlines
8.0
Very good
9,706 reviews
Southwest
8.1
Very good
4,662 reviews

Entertainment

7.7

Food

7.2

Boarding

8.2

Crew

8.7

Overall

8.1

Comfort

8.1

Reviews

1 / 10

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

Delta
8.0
Very good
8,521 reviews
Southwest
8.1
Very good
4,662 reviews

Entertainment

7.7

Food

7.2

Boarding

8.2

Crew

8.7

Overall

8.1

Comfort

8.1

Reviews

1 / 10

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

United Airlines
7.4
Good
8,984 reviews
Southwest
8.1
Very good
4,662 reviews

Entertainment

7.7

Food

7.2

Boarding

8.2

Crew

8.7

Overall

8.1

Comfort

8.1

Reviews

1 / 10

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

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,662 reviews

Entertainment

7.7

Food

7.2

Boarding

8.2

Crew

8.7

Overall

8.1

Comfort

8.1

Reviews

1 / 10

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 21 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 $51. However, be on the lookout for offers from Southwest and Alaska 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 Spokane - San Diego or Jackson Hole - 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: Southwest (81%), Japan Airlines (80%), Horizon Air (80%).

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

    The cheapest flight price from Idaho to San Diego is $138. On average you can expect to pay $264. The most popular route, (Boise Air Term. Gowen Fld - San Diego), can usually be booked for $106.

  • 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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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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$83Average$150FlexibilityNo cancel feeOn-time65%
DeltaCheapest$160Average$453FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$183Average$327FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$219Average$343FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$227Average$363FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$228Average$335FlexibilityNo cancel feeOn-time69%
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