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Idaho

$66+ Cheap flights from San Diego (SAN) to Idaho

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 4/30. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — BOI
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
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Cheap flight deals from San Diego to Idaho

Keep the following information in mind while searching for San Diego to Idaho flight deals. Data was last updated April 17, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$157
(Delta)

One-way from

$66
(Kiwi.com)

Popular in

March

Cheapest in

April

Average price

$257

Good round-trip deal

$217 or less

Good one-way deal

$112 or less
Provider with most accurate pricing for San Diego-Boise Air Term. Gowen Fld flight deals.
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Provider most trusted by Cheapflights users for San Diego-Boise Air Term. Gowen Fld flights.
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From San Diego to Idaho
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One-way flight from San Diego to Idaho
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Highest demand for flights based on searches. 8% potential increase in price ($29 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($16 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 San Diego to Idaho.
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Price to beat on a one-way flight from San Diego to Idaho.
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Find flight deals from San Diego to Idaho

Cheapest flights from San Diego to Idaho
Explore the most affordable flight options available from San Diego to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

This Alaska Airlines deal was found by Cheapflights users on 4/17. 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 5/178:59 pmSAN - GEG
Nonstop2h 48mAlaska Airlines
Sat 5/317:00 amGEG - SAN
Nonstop2h 50mAlaska Airlines
Deal found 4/17$175
This Southwest deal was found by Cheapflights users on 4/17. 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.
Wed 6/116:30 amSAN - GEG
1 stop4h 00mSouthwest
Wed 6/255:40 amGEG - SAN
1 stop4h 15mSouthwest
Deal found 4/17$176
This Delta deal was found by Cheapflights users on 4/17. 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 5/107:20 amSAN - GEG
1 stop7h 30mDelta
Sat 5/174:56 pmGEG - SAN
1 stop5h 34mDelta
Deal found 4/17$177
This Hawaiian Airlines deal was found by Cheapflights users on 4/17. 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 6/118:59 pmSAN - GEG
Nonstop2h 48mHawaiian Airlines
Wed 6/257:00 amGEG - SAN
Nonstop2h 47mHawaiian Airlines
Deal found 4/17$183
This Hawaiian Airlines deal was found by Cheapflights users on 4/17. 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 9/178:20 pmSAN - BOI
Nonstop2h 22mHawaiian Airlines
Sun 9/217:00 amBOI - SAN
Nonstop2h 23mHawaiian Airlines
Deal found 4/17$197
This Expedia deal was found by Cheapflights users on 4/17. 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.
Wed 5/148:10 amSAN - BOI
Nonstop2h 32mMultiple Airlines
Thu 5/152:57 pmBOI - SAN
1 stop5h 57mMultiple Airlines
Deal found 4/17$203
This Alaska Airlines deal was found by Cheapflights users on 4/17. 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 5/242:32 pmSAN - BOI
1 stop6h 51mAlaska Airlines
Wed 5/287:58 pmBOI - SAN
Nonstop2h 21mAlaska Airlines
Deal found 4/17$207
This Delta deal was found by Cheapflights users on 4/17. 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 5/237:18 pmSAN - BOI
1 stop4h 05mDelta
Sun 6/17:18 pmBOI - SAN
1 stop5h 35mDelta
Deal found 4/17$208
This Southwest deal was found by Cheapflights users on 4/17. 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 7/47:45 amSAN - BOI
1 stop4h 10mSouthwest
Mon 7/76:25 pmBOI - SAN
1 stop5h 05mSouthwest
Deal found 4/17$216
This Delta deal was found by Cheapflights users on 4/17. 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 5/81:10 pmSAN - JAC
1 stop6h 38mDelta
Sat 5/171:25 pmJAC - SAN
1 stop4h 00mDelta
Deal found 4/17$237
This Alaska Airlines deal was found by Cheapflights users on 4/16. 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 5/1411:54 amSAN - IDA
1 stop9h 42mAlaska Airlines
Wed 5/214:20 pmIDA - SAN
1 stop6h 25mAlaska Airlines
Deal found 4/16$244
This Delta deal was found by Cheapflights users on 4/16. 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 5/175:02 pmSAN - IDA
1 stop4h 53mDelta
Tue 5/2012:30 pmIDA - SAN
1 stop4h 55mDelta
Deal found 4/16$245

Cheapflights Fare Finder

Customize your flight search to find flights from San Diego to Idaho 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 17, 2025.
Use the filters below to find and compare flights from San Diego to Idaho that are best for you.

Fly from

San Diego

Fly to

Idaho

Route

Depart

Return

Price

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

Sat 5/17

8:59 pm-11:47 pm

Nonstop2h 48m

Spokane

Sat 5/31

7:00 am-9:50 am

Nonstop2h 50m

$175

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

Wed 6/11

6:30 am-10:30 am

1 stop4h 00m

Spokane

Wed 6/25

5:40 am-9:55 am

1 stop4h 15m

$176

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

Sat 5/10

7:20 am-2:50 pm

1 stop7h 30m

Spokane

Sat 5/17

4:56 pm-10:30 pm

1 stop5h 34m

$177

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

Wed 6/11

8:59 pm-11:47 pm

Nonstop2h 48m

Spokane

Wed 6/25

7:00 am-9:47 am

Nonstop2h 47m

$183

San DiegoBoise

SAN - BOI

SANBOI

San Diego

Wed 9/17

8:20 pm-11:42 pm

Nonstop2h 22m

Boise Air Term. Gowen Fld

Sun 9/21

7:00 am-8:23 am

Nonstop2h 23m

$197

San DiegoBoise

SAN - BOI

SANBOI

San Diego

Wed 5/14

8:10 am-11:42 am

Nonstop2h 32m

Boise Air Term. Gowen Fld

Thu 5/15

2:57 pm-7:54 pm

1 stop5h 57m

$203

San DiegoBoise

SAN - BOI

SANBOI

San Diego

Sat 5/24

2:32 pm-10:23 pm

1 stop6h 51m

Boise Air Term. Gowen Fld

Sun 6/1

7:58 pm-9:19 pm

Nonstop2h 21m

$207

San DiegoBoise

SAN - BOI

SANBOI

San Diego

Fri 5/23

7:18 pm-12:23 am

1 stop4h 05m

Boise Air Term. Gowen Fld

Sun 6/1

7:18 pm-11:53 pm

1 stop5h 35m

$208

San DiegoBoise

SAN - BOI

SANBOI

San Diego

Fri 7/4

7:45 am-12:55 pm

1 stop4h 10m

Boise Air Term. Gowen Fld

Mon 7/7

6:25 pm-10:30 pm

1 stop5h 05m

$216

San DiegoJackson

SAN - JAC

SANJAC

San Diego

Thu 5/8

1:10 pm-8:48 pm

1 stop6h 38m

Jackson Hole

Thu 5/22

6:50 pm-11:53 pm

1 stop6h 03m

$237

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Showing 1-10 of 55 results
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Best time to book a flight from San Diego to Idaho

Have a flexible travel schedule? Discover the best time to fly to Idaho from San Diego 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 San Diego to Idaho

What is the cheapest month to book a flight from San Diego to Idaho?

Currently, October is the cheapest month in which you can book a flight from San Diego to Idaho (average of $314). Flying from San Diego to Idaho in June is currently the most expensive (average of $419). 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 SAN to ID?

Find hourly flight availability from San Diego to Idaho. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 17, 2025.

When flying from San Diego to Idaho, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from San Diego to Idaho

Explore weekly flight availability from San Diego to Idaho. 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 17, 2025.

The most flights from SAN to USID are scheduled on a Monday (7 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (2 on average).

Rainfall in Idaho by month

Plan your trip to Idaho by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Idaho ranges from 0.2 - 1.6 inches per month. December is typically the wettest month, when rainfall can reach 1.6 in. August is typically the driest time to visit Idaho when rainfall is around 0.2 in.

Temperature in Idaho by month

Plan your trip to Idaho by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Idaho, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Idaho

Get insights into the airlines that provide service to Idaho. 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 Idaho. Reviews last updated April 17, 2025.
See what other customers who have flown with Alaska Airlines, Southwest and Delta from San Diego to Idaho have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,882 reviews

Comfort

7.9

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.2

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,882 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Comfort

7.9

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.2

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Southwest
8.0
Very good
4,280 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Comfort

7.9

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.2

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,917 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Comfort

7.9

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.2

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Hawaiian Airlines
7.9
Good
2,382 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Comfort

7.9

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.2

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,667 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Comfort

7.9

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.2

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Related info for your journey

Find useful and relevant information for your journey from San Diego to Idaho. 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 from for flights from San Diego to Idaho?

    For a flight from San Diego to Idaho, you will be flying from San Diego. San Diego (SAN) is just 2.6 mi from the center of the city.

  • How popular is this San Diego to Idaho flight route?

    Flights from San Diego to Idaho have been viewed 21 times in the past calendar month.

  • What are the cheapest airlines to fly from San Diego to Idaho one-way?

    The cheapest airline one-way is Spirit Airlines, with whom users have recently found tickets for as low as $66. However, be on the lookout for offers from Southwest and Alaska Airlines, as they are both options that can get you from San Diego to Idaho for a low price.

  • What are the most popular routes from San Diego to Idaho?

    Most travelers choose San Diego - Boise Air Term. Gowen Fld, San Diego - Spokane or San Diego - Jackson Hole when deciding on the best route from San Diego to Idaho.

  • What are the most reliable airlines from San Diego to Idaho?

    The top 3 most reliable airlines when flying from San Diego to Idaho are Southwest (89%), Japan Airlines (75%) and Horizon Air (70%).

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

    Looking at all options, your cheapest flight can be booked for $89. While the most popular route (San Diego - Boise Air Term. Gowen Fld) can be booked for $150 on average our data indicates $294 when flying from San Diego to Idaho.

  • Can I find deals for flights from San Diego to Idaho that include hotel bookings?

    Yes. In addition to deals on San Diego to Idaho flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Diego to Idaho?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Diego to Idaho.

  • Can I find deals for business class flights from San Diego to Idaho?

    Yes. Cheapflights offers flight deals from San Diego to Idaho 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 San Diego to Idaho?

    Currently, October is the cheapest month in which you can book a flight from San Diego to Idaho (average of $314). Flying from San Diego to Idaho in June is currently the most expensive (average of $419). 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

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Alternative routes for San Diego to Idaho

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from San Diego to Idaho

Discover the top 7 airlines that operate flights from San Diego to Idaho. 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 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$88Average$154FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$158Average$398FlexibilityNo cancel feeOn-time69%
DeltaCheapest$158Average$443FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$163Average$387FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$182Average$370FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$187Average$316FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$264Average$371FlexibilityNo cancel feeOn-time71%

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