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Idaho

$57+ 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 8/11. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — BOI
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$181
(Mytrip)

One-way from

$76
(FlightHub)

Popular in

March

Cheapest in

April

Average price

$272

Good round-trip deal

$257 or less

Good one-way deal

$138 or less
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 ($30 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This Mytrip deal was found by Cheapflights users on 6/10. 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.
Mon 8/410:55 amSAN - IDA
1 stop6h 38mMultiple Airlines
Mon 8/116:12 pmIDA - SAN
1 stop24h 43mMultiple Airlines
Deal found 6/10$181
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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.
Fri 9/268:03 pmSAN - GEG
Nonstop2h 49mAlaska Airlines
Mon 9/295:46 pmGEG - SAN
1 stop5h 07mAlaska Airlines
Deal found 6/10$185
This Delta deal was found by Cheapflights users on 6/10. 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 8/57:30 amSAN - GEG
1 stop5h 03mDelta
Fri 8/155:00 amGEG - SAN
1 stop5h 04mDelta
Deal found 6/10$187
This Mytrip deal was found by Cheapflights users on 6/11. 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.
Sat 7/197:00 pmSAN - GEG
1 stop13h 43mMultiple Airlines
Mon 7/215:52 pmGEG - SAN
2 stops29h 14mMultiple Airlines
Deal found 6/11$192
This Alaska Airlines deal was found by Cheapflights users on 6/9. 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 8/198:12 pmSAN - BOI
Nonstop2h 18mAlaska Airlines
Sat 8/308:18 pmBOI - SAN
Nonstop2h 22mAlaska Airlines
Deal found 6/9$197
This Hawaiian Airlines deal was found by Cheapflights users on 6/10. 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.
Sat 10/257:56 amSAN - BOI
Nonstop2h 31mHawaiian Airlines
Wed 11/57:04 amBOI - SAN
1 stop6h 08mHawaiian Airlines
Deal found 6/10$200
This Southwest deal was found by Cheapflights users on 6/10. 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 7/257:30 pmSAN - GEG
1 stop4h 05mSouthwest
Tue 7/295:40 amGEG - SAN
1 stop4h 15mSouthwest
Deal found 6/10$200
This Cheapflightsfares deal was found by Cheapflights users on 6/10. 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.
Fri 7/186:15 amSAN - BOI
1 stop11h 37mSpirit Airlines
Mon 7/217:48 pmBOI - SAN
1 stop4h 18mSpirit Airlines
Deal found 6/10$202
This Hawaiian Airlines deal was found by Cheapflights users on 6/10. 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 7/278:59 pmSAN - GEG
Nonstop2h 45mHawaiian Airlines
Sat 8/27:00 amGEG - SAN
Nonstop2h 47mHawaiian Airlines
Deal found 6/10$203
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Wed 10/226:45 amSAN - JAC
1 stop4h 59mUnited Airlines
Sat 10/254:18 pmJAC - SAN
1 stop5h 07mUnited Airlines
Deal found 6/10$209
This Delta deal was found by Cheapflights users on 6/9. 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 7/304:00 pmSAN - BOI
1 stop5h 57mDelta
Tue 8/57:30 amBOI - SAN
1 stop8h 10mDelta
Deal found 6/9$217
This Expedia deal was found by Cheapflights users on 6/11. 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 7/98:12 pmSAN - BOI
Nonstop2h 18mMultiple Airlines
Fri 7/117:48 pmBOI - SAN
1 stop4h 18mMultiple Airlines
Deal found 6/11$221

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 June 12, 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 DiegoIdaho Falls

SAN - IDA

SANIDA

San Diego

Mon 8/4

10:55 am-6:33 pm

1 stop6h 38m

Idaho Falls Fanning Field

Mon 8/11

6:12 pm-5:55 pm

1 stop24h 43m

$181

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

Fri 9/26

8:03 pm-10:52 pm

Nonstop2h 49m

Spokane

Mon 9/29

5:46 pm-10:53 pm

1 stop5h 07m

$185

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

Tue 8/5

7:30 am-12:33 pm

1 stop5h 03m

Spokane

Fri 8/15

5:00 am-10:04 am

1 stop5h 04m

$187

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

Sat 7/19

7:00 pm-8:43 am

1 stop13h 43m

Spokane

Mon 7/21

5:52 pm-11:06 pm

2 stops29h 14m

$192

San DiegoBoise

SAN - BOI

SANBOI

San Diego

Tue 8/19

8:12 pm-11:30 pm

Nonstop2h 18m

Boise Air Term. Gowen Fld

Sat 8/30

8:18 pm-9:40 pm

Nonstop2h 22m

$197

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

Fri 7/25

7:30 pm-11:35 pm

1 stop4h 05m

Spokane

Tue 7/29

5:40 am-9:55 am

1 stop4h 15m

$200

San DiegoBoise

SAN - BOI

SANBOI

San Diego

Fri 7/18

6:15 am-6:52 pm

1 stop11h 37m

Boise Air Term. Gowen Fld

Mon 7/21

7:48 pm-11:06 pm

1 stop4h 18m

$202

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

Sun 7/27

8:59 pm-11:44 pm

Nonstop2h 45m

Spokane

Sat 8/2

7:00 am-9:47 am

Nonstop2h 47m

$203

San DiegoBoise

SAN - BOI

SANBOI

San Diego

Sat 8/16

12:23 pm-7:41 pm

1 stop6h 18m

Boise Air Term. Gowen Fld

Sat 8/23

8:18 pm-9:40 pm

Nonstop2h 22m

$207

San DiegoBoise

SAN - BOI

SANBOI

San Diego

Wed 7/30

4:00 pm-10:57 pm

1 stop5h 57m

Boise Air Term. Gowen Fld

Tue 8/5

7:30 am-2:40 pm

1 stop8h 10m

$217

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 60 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 $395). 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 June 12, 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.

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 June 12, 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
10,000 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

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
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

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
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

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
7,946 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

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
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

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
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

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 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 17 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 $76. However, be on the lookout for offers from Alaska Airlines and Delta, 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 (97%), Horizon Air (95%) and Hawaiian Airlines (86%).

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

    Looking at all options, your cheapest flight can be booked for $88. While the most popular route (San Diego - Boise Air Term. Gowen Fld) can be booked for $162 on average our data indicates $257 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 $395). 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

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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$88Average$161FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$158Average$438FlexibilityNo cancel feeOn-time69%
DeltaCheapest$158Average$426FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$185Average$362FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$187Average$316FlexibilityNo cancel feeOn-time63%
Hawaiian AirlinesCheapest$197Average$284FlexibilityNo cancel feeOn-time85%
American AirlinesCheapest$264Average$371FlexibilityNo cancel feeOn-time71%

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