Idaho

$52+ 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 6/2. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — BOI
may. 5 — may. 121
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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 abril 30, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$136
(Expedia)

One-way from

$52
(Cheapflightsfares)

Popular in

March

Cheapest in

April

Average price

$260

Good round-trip deal

$217 or less

Good one-way deal

$128 or less
Provider with most accurate pricing for San Diego-Boise Air Term. Gowen Fld flight deals.
Provider most trusted by Cheapflights users for San Diego-Boise Air Term. Gowen Fld flights.
From San Diego to Idaho
One-way flight from San Diego to Idaho
Highest demand for flights based on searches. 8% potential increase in price ($30 potential increase over avg. RT price).
Cheapest flight prices on average. 5% potential price decrease ($16 potential savings vs. average RT price).
Average for round-trip flights in April 2025
Price to beat on a round-trip flight from San Diego to Idaho.
Price to beat on a one-way flight from San Diego to Idaho.

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 abril 30, 2025.

This Expedia deal was found by Cheapflights users on 4/29. 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.
jue. 5/298:10 amSAN - BOI
Nonstop2h 28mMultiple Airlines
lun. 6/212:16 pmBOI - SAN
1 stop8h 37mMultiple Airlines
Deal found 4/29$136
This Cheapflightsfares deal was found by Cheapflights users on 4/28. 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.
lun. 5/266:15 amSAN - BOI
1 stop4h 06mSpirit Airlines
lun. 6/212:16 pmBOI - SAN
1 stop8h 37mSpirit Airlines
Deal found 4/28$145
This Delta deal was found by Cheapflights users on 4/28. 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. 6/31:55 pmSAN - BOI
1 stop7h 34mDelta
mar. 6/101:00 pmBOI - SAN
1 stop3h 59mDelta
Deal found 4/28$157
This Alaska Airlines deal was found by Cheapflights users on 4/28. 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. 6/68:59 pmSAN - GEG
Nonstop2h 48mAlaska Airlines
mar. 6/107:00 amGEG - SAN
Nonstop2h 50mAlaska Airlines
Deal found 4/28$175
This Delta deal was found by Cheapflights users on 4/28. 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.
vie. 6/65:02 pmSAN - GEG
1 stop6h 36mDelta
mar. 6/105:23 pmGEG - SAN
1 stop5h 04mDelta
Deal found 4/28$177
This Southwest deal was found by Cheapflights users on 4/28. 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. 6/116:30 amSAN - GEG
1 stop4h 00mSouthwest
mié. 6/181:25 pmGEG - SAN
1 stop4h 35mSouthwest
Deal found 4/28$179
This Alaska Airlines deal was found by Cheapflights users on 4/29. 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. 5/278:10 amSAN - BOI
Nonstop2h 28mAlaska Airlines
mar. 6/31:00 pmBOI - SAN
1 stop19h 39mAlaska Airlines
Deal found 4/29$180
This Hawaiian Airlines deal was found by Cheapflights users on 4/28. 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.
mié. 6/118:59 pmSAN - GEG
Nonstop2h 48mHawaiian Airlines
mié. 6/186:07 pmGEG - SAN
1 stop5h 52mHawaiian Airlines
Deal found 4/28$192
This Hawaiian Airlines deal was found by Cheapflights users on 4/28. 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.
mar. 5/277:31 pmSAN - BOI
Nonstop2h 19mHawaiian Airlines
mar. 6/37:58 pmBOI - SAN
Nonstop2h 21mHawaiian Airlines
Deal found 4/28$197
This Frontier deal was found by Cheapflights users on 4/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 5/156:25 amSAN - BOI
1 stop6h 12mFrontier
dom. 5/182:27 pmBOI - SAN
1 stop10h 46mFrontier
Deal found 4/29$198
This Mytrip deal was found by Cheapflights users on 4/29. 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.
sáb. 6/75:43 pmSAN - GEG
1 stop15h 02mMultiple Airlines
lun. 6/95:57 pmGEG - SAN
2 stops29h 59mMultiple Airlines
Deal found 4/29$205
This United Airlines deal was found by Cheapflights users on 4/29. 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.
sáb. 7/261:50 pmSAN - JAC
1 stop5h 07mUnited Airlines
mié. 7/307:50 amJAC - SAN
1 stop5h 58mUnited Airlines
Deal found 4/29$209

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 abril 30, 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 DiegoBoise

SAN - BOI

SANBOI

San Diego

jue. 5/29

8:10 am-11:38 am

Nonstop2h 28m

Boise Air Term. Gowen Fld

lun. 6/2

12:16 pm-7:53 pm

1 stop8h 37m

$136

San DiegoBoise

SAN - BOI

SANBOI

San Diego

lun. 5/26

6:15 am-11:21 am

1 stop4h 06m

Boise Air Term. Gowen Fld

lun. 6/2

12:16 pm-7:53 pm

1 stop8h 37m

$145

San DiegoBoise

SAN - BOI

SANBOI

San Diego

mar. 5/27

6:15 am-11:54 am

1 stop4h 39m

Boise Air Term. Gowen Fld

mar. 6/3

7:18 pm-11:53 pm

1 stop5h 35m

$157

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

vie. 6/6

8:59 pm-11:47 pm

Nonstop2h 48m

Spokane

mar. 6/10

6:00 am-11:13 am

1 stop5h 13m

$176

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

jue. 6/5

7:15 pm-12:05 am

1 stop4h 50m

Spokane

mié. 6/11

5:23 pm-10:27 pm

1 stop5h 04m

$177

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

mié. 6/11

6:30 am-10:30 am

1 stop4h 00m

Spokane

mié. 6/18

1:25 pm-6:00 pm

1 stop4h 35m

$179

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

mié. 6/11

8:59 pm-11:47 pm

Nonstop2h 48m

Spokane

mié. 6/18

6:07 pm-11:59 pm

1 stop5h 52m

$183

San DiegoBoise

SAN - BOI

SANBOI

San Diego

mar. 5/27

7:31 pm-10:50 pm

Nonstop2h 19m

Boise Air Term. Gowen Fld

jue. 5/29

7:58 pm-9:19 pm

Nonstop2h 21m

$187

San DiegoBoise

SAN - BOI

SANBOI

San Diego

mar. 5/27

7:31 pm-10:50 pm

Nonstop2h 19m

Boise Air Term. Gowen Fld

mar. 6/3

7:58 pm-9:19 pm

Nonstop2h 21m

$197

San DiegoBoise

SAN - BOI

SANBOI

San Diego

mar. 5/27

6:20 am-1:20 pm

1 stop6h 00m

Boise Air Term. Gowen Fld

mar. 6/3

5:10 pm-9:36 pm

1 stop5h 26m

$198

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 58 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 $406). 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 abril 30, 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 abril 30, 2025.

The most flights from SAN to USID are scheduled on a Monday (7 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (5 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 abril 30, 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.

Food

7.1

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Food

7.1

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Food

7.1

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
8.0
Very good

Food

7.1

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Food

7.1

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Food

7.1

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.1

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?

  • 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 $52. 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?

  • 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 $98. While the most popular route (San Diego - Boise Air Term. Gowen Fld) can be booked for $145 on average our data indicates $281 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 $406). 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.

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 abril 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$88Average$154FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$158Average$397FlexibilityNo cancel feeOn-time69%
DeltaCheapest$158Average$439FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$163Average$357FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$182Average$365FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$187Average$314FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$264Average$371FlexibilityNo cancel feeOn-time71%

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