Idaho

$31+ 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 2 — Apr 91
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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 March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$116
(CheapOair)

One-way from

$31
(FlightHub)

Popular in

March

Cheapest in

April

Average price

$489

Good round-trip deal

$257 or less

Good one-way deal

$108 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. 6% potential increase in price ($22 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($15 potential savings vs. average RT price).
Average for round-trip flights in March 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 March 28, 2025.

This CheapOair deal was found by Cheapflights users on 3/26. 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.
Thu 5/86:55 pmSAN - BOI
1 stop15h 26mSpirit Airlines
Mon 5/1212:16 pmBOI - SAN
1 stop12h 37mSpirit Airlines
Deal found 3/26$116
This Expedia deal was found by Cheapflights users on 3/25. 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 4/166:15 amSAN - BOI
1 stop5h 42mMultiple Airlines
Sun 4/205:27 pmBOI - SAN
Nonstop2h 20mMultiple Airlines
Deal found 3/25$132
This Delta deal was found by Cheapflights users on 3/26. 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 4/196:15 amSAN - BOI
1 stop5h 15mDelta
Wed 4/235:50 amBOI - SAN
1 stop5h 17mDelta
Deal found 3/26$157
This Mytrip deal was found by Cheapflights users on 3/27. 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.
Thu 4/176:15 amSAN - GEG
1 stop14h 08mMultiple Airlines
Thu 4/249:13 pmGEG - SAN
1 stop13h 12mMultiple Airlines
Deal found 3/27$171
This Southwest deal was found by Cheapflights users on 3/27. 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.
Tue 5/137:00 amSAN - GEG
1 stop4h 05mSouthwest
Tue 5/135:25 pmGEG - SAN
1 stop4h 05mSouthwest
Deal found 3/27$172
This Delta deal was found by Cheapflights users on 3/27. 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 4/2311:05 amSAN - GEG
1 stop7h 40mDelta
Wed 4/305:00 amGEG - SAN
1 stop5h 07mDelta
Deal found 3/27$177
This Alaska Airlines deal was found by Cheapflights users on 3/27. 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 5/168:59 pmSAN - GEG
Nonstop2h 48mAlaska Airlines
Tue 5/207:00 amGEG - SAN
Nonstop2h 50mAlaska Airlines
Deal found 3/27$186
This Hawaiian Airlines deal was found by Cheapflights users on 3/26. 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.
Fri 4/187:35 pmSAN - BOI
Nonstop2h 21mHawaiian Airlines
Sun 4/205:27 pmBOI - SAN
Nonstop2h 20mHawaiian Airlines
Deal found 3/26$197
This Southwest deal was found by Cheapflights users on 3/26. 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.
Thu 5/12:00 pmSAN - BOI
Nonstop2h 15mSouthwest
Tue 5/63:00 pmBOI - SAN
1 stop3h 55mSouthwest
Deal found 3/26$202
This Alaska Airlines deal was found by Cheapflights users on 3/27. 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 4/187:35 pmSAN - BOI
Nonstop2h 21mAlaska Airlines
Sun 4/275:40 pmBOI - SAN
1 stop26h 29mAlaska Airlines
Deal found 3/27$210
This Hawaiian Airlines deal was found by Cheapflights users on 3/27. 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.
Mon 4/218:31 pmSAN - GEG
Nonstop2h 56mHawaiian Airlines
Sat 4/264:17 pmGEG - SAN
1 stop4h 02mHawaiian Airlines
Deal found 3/27$216
This United Airlines deal was found by Cheapflights users on 3/26. 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 11/199:00 amSAN - JAC
1 stop5h 12mUnited Airlines
Tue 11/254:25 pmJAC - SAN
1 stop7h 03mUnited Airlines
Deal found 3/26$231

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 March 28, 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

Thu 5/8

6:55 pm-11:21 am

1 stop15h 26m

Boise Air Term. Gowen Fld

Mon 5/12

12:16 pm-11:53 pm

1 stop12h 37m

$116

San DiegoBoise

SAN - BOI

SANBOI

San Diego

Wed 4/16

6:15 am-12:57 pm

1 stop5h 42m

Boise Air Term. Gowen Fld

Sun 4/20

5:27 pm-6:47 pm

Nonstop2h 20m

$132

San DiegoBoise

SAN - BOI

SANBOI

San Diego

Sat 4/19

6:15 am-12:30 pm

1 stop5h 15m

Boise Air Term. Gowen Fld

Wed 4/23

5:50 am-10:07 am

1 stop5h 17m

$157

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

Thu 4/17

6:15 am-8:23 pm

1 stop14h 08m

Spokane

Thu 4/24

9:13 pm-10:25 am

1 stop13h 12m

$171

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

Tue 5/13

7:25 am-11:35 am

1 stop4h 10m

Spokane

Tue 5/13

4:50 pm-9:20 pm

1 stop4h 30m

$172

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

Wed 4/23

7:15 pm-11:44 pm

1 stop4h 29m

Spokane

Tue 4/29

1:25 pm-6:02 pm

1 stop4h 37m

$177

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

Fri 5/16

8:59 pm-11:47 pm

Nonstop2h 48m

Spokane

Tue 5/20

7:00 am-9:50 am

Nonstop2h 50m

$186

San DiegoBoise

SAN - BOI

SANBOI

San Diego

Fri 4/18

7:35 pm-10:56 pm

Nonstop2h 21m

Boise Air Term. Gowen Fld

Sun 4/27

7:04 pm-8:19 pm

Nonstop2h 15m

$197

San DiegoBoise

SAN - BOI

SANBOI

San Diego

Thu 5/1

2:00 pm-5:15 pm

Nonstop2h 15m

Boise Air Term. Gowen Fld

Tue 5/6

3:00 pm-5:55 pm

1 stop3h 55m

$202

San DiegoBoise

SAN - BOI

SANBOI

San Diego

Fri 4/18

7:35 pm-10:56 pm

Nonstop2h 21m

Boise Air Term. Gowen Fld

Sun 4/27

5:40 pm-7:09 pm

1 stop26h 29m

$210

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 53 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 $421). 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 March 28, 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 March 28, 2025.

The most flights from SAN to USID are scheduled on a Tuesday (6 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 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 March 28, 2025.
See what other customers who have flown with Southwest, Alaska Airlines 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.

Boarding

8.2

Food

7.1

Crew

8.6

Entertainment

7.6

Comfort

8.1

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Boarding

8.2

Food

7.1

Crew

8.6

Entertainment

7.6

Comfort

8.1

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Boarding

8.2

Food

7.1

Crew

8.6

Entertainment

7.6

Comfort

8.1

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
8.0
Very good

Boarding

8.2

Food

7.1

Crew

8.6

Entertainment

7.6

Comfort

8.1

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Boarding

8.2

Food

7.1

Crew

8.6

Entertainment

7.6

Comfort

8.1

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Boarding

8.2

Food

7.1

Crew

8.6

Entertainment

7.6

Comfort

8.1

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

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 $31. 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?

  • 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%), SkyWest Airlines (79%) and Alaska Airlines (63%).

  • 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 - Spokane) can be booked for $176 on average our data indicates $242 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 $421). 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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$89Average$154FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$158Average$398FlexibilityNo cancel feeOn-time69%
DeltaCheapest$158Average$456FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$163Average$387FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$185Average$369FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$187Average$324FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$264Average$371FlexibilityNo cancel feeOn-time71%
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