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Idaho

$71+ 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 1/14. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — BOI
ene. 11 — ene. 181
dom. 1/11
dom. 1/18
1 adult, Economy
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Cheap 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 diciembre 12, 2025.

This United Airlines deal was found by Cheapflights users on 12/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/266:30 amSAN - GEG
1 stop8h 49mUnited Airlines
jue. 1/11:47 pmGEG - SAN
1 stop8h 45mUnited Airlines
Deal found 12/11$264
This United Airlines deal was found by Cheapflights users on 12/10. 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.
mié. 12/244:10 pmSAN - BOI
1 stop5h 30mUnited Airlines
mié. 12/317:00 amBOI - SAN
1 stop4h 30mUnited Airlines
Deal found 12/10$285
This Alaska Airlines deal was found by Cheapflights users on 12/11. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/298:33 pmSAN - BOI
Nonstop2h 26mAlaska Airlines
vie. 1/26:55 amBOI - SAN
Nonstop2h 26mAlaska Airlines
Deal found 12/11$287
This Kiwi.com deal was found by Cheapflights users on 12/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/292:10 pmSAN - BOI
1 stop23h 20mMultiple Airlines
vie. 1/29:46 pmBOI - SAN
1 stop15h 52mMultiple Airlines
Deal found 12/11$290
This Alaska Airlines deal was found by Cheapflights users on 12/10. 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.
mié. 12/2412:31 pmSAN - BOI
1 stop8h 36mAlaska Airlines
mié. 12/317:11 pmBOI - SAN
Nonstop2h 33mAlaska Airlines
Deal found 12/10$297
This United Airlines deal was found by Cheapflights users on 12/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/196:30 amSAN - GEG
1 stop8h 49mUnited Airlines
dom. 12/211:47 pmGEG - SAN
1 stop8h 45mUnited Airlines
Deal found 12/11$297
This Kiwi.com deal was found by Cheapflights users on 12/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/292:10 pmSAN - IDA
1 stop27h 11mMultiple Airlines
dom. 1/111:34 pmIDA - SAN
1 stop21h 23mMultiple Airlines
Deal found 12/9$299
This United Airlines deal was found by Cheapflights users on 12/10. 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.
vie. 12/194:10 pmSAN - BOI
1 stop5h 30mUnited Airlines
sáb. 1/1710:48 amBOI - SAN
1 stop5h 04mUnited Airlines
Deal found 12/10$322
This Southwest deal was found by Cheapflights users on 12/10. 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.
dom. 12/285:05 pmSAN - GEG
1 stop6h 25mSouthwest
mar. 1/65:35 amGEG - SAN
1 stop6h 25mSouthwest
Deal found 12/10$328
This Alaska Airlines deal was found by Cheapflights users on 12/10. 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.
vie. 12/198:33 pmSAN - BOI
Nonstop2h 26mAlaska Airlines
sáb. 1/171:55 pmBOI - SAN
1 stop6h 24mAlaska Airlines
Deal found 12/10$332
This Southwest deal was found by Cheapflights users on 12/10. 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.
mié. 12/179:45 amSAN - GEG
1 stop4h 50mSouthwest
mié. 12/246:35 amGEG - SAN
1 stop5h 15mSouthwest
Deal found 12/10$337
This Kiwi.com deal was found by Cheapflights users on 12/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/309:14 pmSAN - IDA
1 stop14h 52mMultiple Airlines
dom. 1/111:34 pmIDA - SAN
1 stop21h 23mMultiple Airlines
Deal found 12/9$338

Find 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 diciembre 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$137
(Alaska Airlines)

One-way from

$71
(Kiwi.com)

Popular in

March

Cheapest in

September

Average price

$327

Good round-trip deal

$241 or less

Good one-way deal

$153 or less
Provider with most accurate pricing for San Diego-Boise Air Term. Gowen Fld flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Diego-Boise Air Term. Gowen Fld flights.
Search Deals
From San Diego to Idaho
Search Deals
One-way flight from San Diego to Idaho
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($38 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from San Diego to Idaho.
Search Deals
Price to beat on a one-way flight from San Diego to Idaho.
Search Deals

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 diciembre 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 DiegoSpokane

SAN - GEG

SANGEG

San Diego

mar. 1/6

8:59 pm-11:59 pm

Nonstop3h 00m

Spokane

jue. 1/22

6:48 am-9:47 am

Nonstop2h 59m

$147

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

mar. 1/6

8:59 pm-11:59 pm

Nonstop3h 00m

Spokane

vie. 1/23

6:48 am-9:47 am

Nonstop2h 59m

$147

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

mié. 1/7

7:27 pm-10:26 pm

Nonstop2h 59m

Spokane

dom. 1/18

6:48 am-9:47 am

Nonstop2h 59m

$147

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

mié. 1/7

6:15 am-12:44 pm

1 stop6h 29m

Spokane

mié. 1/14

12:10 pm-5:20 pm

1 stop5h 10m

$156

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

sáb. 3/7

6:15 am-12:29 pm

1 stop6h 14m

Spokane

mar. 3/10

1:23 pm-6:30 pm

1 stop5h 07m

$156

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

vie. 1/23

7:27 pm-10:26 pm

Nonstop2h 59m

Spokane

dom. 1/25

6:48 am-9:47 am

Nonstop2h 59m

$157

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

vie. 1/9

7:27 pm-10:26 pm

Nonstop2h 59m

Spokane

jue. 1/22

6:48 am-9:47 am

Nonstop2h 59m

$157

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

mié. 1/7

1:05 pm-8:15 pm

1 stop7h 10m

Spokane

mié. 1/14

6:20 am-4:45 pm

2 stops10h 25m

$162

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

mar. 1/6

8:59 pm-11:59 pm

Nonstop3h 00m

Spokane

sáb. 1/17

1:38 pm-8:58 pm

1 stop7h 20m

$162

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

mar. 1/6

8:59 pm-11:59 pm

Nonstop3h 00m

Spokane

mar. 1/20

7:30 am-7:19 pm

1 stop11h 49m

$162

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

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, November is the cheapest month in which you can book a flight from San Diego to Idaho (average of $60). Flying from San Diego to Idaho in December is currently the most expensive (average of $161). 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 diciembre 12, 2025.

It’s optimal to fly from San Diego to Idaho in the evening. By choosing this option you can save up to 35% on the cost of your flight, compared to a flight in the afternoon.

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

Use this chart to determine the cheapest time to fly round-trip from San Diego to Idaho. Price data was last updated on December 6, 2025.

Travelers seeking maximum savings on their San Diego to Idaho flight should consider departing on Saturday at noon when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 diciembre 12, 2025.

The most flights from SAN to USID are scheduled on a Thursday (6 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (3 on average).

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 diciembre 12, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Delta from San Diego to Idaho by reading reviews from past customers. 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
11,432 reviews

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Alaska Airlines
8.0
Very good
11,432 reviews
Alaska Airlines
8.0
Very good
11,432 reviews

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Southwest
7.9
Good
4,253 reviews
Alaska Airlines
8.0
Very good
11,432 reviews

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Delta
7.9
Good
8,007 reviews
Alaska Airlines
8.0
Very good
11,432 reviews

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Hawaiian Airlines
7.8
Good
2,817 reviews
Alaska Airlines
8.0
Very good
11,432 reviews

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
United Airlines
7.4
Good
9,093 reviews
Alaska Airlines
8.0
Very good
11,432 reviews

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.

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 9 times in the past calendar month.

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

    Airlines like Alaska Airlines, United Airlines, and Delta fly from San Diego to Idaho in about 3h. The time it takes to get you to your destination can typically vary by up to 5h 55m. San Diego and Idaho are separated by a distance of 1028 mi. 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 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 $47. However, be on the lookout for offers from Delta and Southwest, 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 Alaska Airlines (87%), SkyWest Airlines (86%) and Southwest (83%).

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

    Looking at all options, your cheapest flight can be booked for $78. While the most popular route (San Diego - Boise Air Term. Gowen Fld) can be booked for $155 on average, our data indicates $273 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, November is the cheapest month in which you can book a flight from San Diego to Idaho (average of $60). Flying from San Diego to Idaho in December is currently the most expensive (average of $161). 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 6 airlines flying from San Diego to Idaho

Discover the top 6 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 diciembre 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$100Average$215FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$155Average$274FlexibilityNo cancel feeOn-time85%
DeltaCheapest$156Average$386FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$157Average$279FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$166Average$381FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$202Average$406FlexibilityNo cancel feeOn-time69%

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