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$48+ 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 3/18. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — BOI
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
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 February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$154
(Trip.com)

One-way from

$48
(FlightHub)

Popular in

March

Cheapest in

April

Average price

$312

Good round-trip deal

$307 or less

Good one-way deal

$168 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. 5% potential increase in price ($20 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in February 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 February 20, 2025.

This Trip.com deal was found by Cheapflights users on 2/20. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/138:33 pmSAN - GEG
Nonstop2h 54mHawaiian Airlines
Sun 3/167:25 amGEG - SAN
Nonstop2h 55mHawaiian Airlines
Deal found 2/20$154
This Southwest deal was found by Cheapflights users on 2/20. 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 3/1310:00 amSAN - GEG
1 stop7h 10mSouthwest
Sun 3/166:10 pmGEG - SAN
1 stop5h 15mSouthwest
Deal found 2/20$157
This Delta deal was found by Cheapflights users on 2/20. 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 4/227:20 amSAN - GEG
1 stop5h 25mDelta
Sun 4/276:15 amGEG - SAN
1 stop6h 17mDelta
Deal found 2/20$187
This Mytrip deal was found by Cheapflights users on 2/18. 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 3/85:39 pmSAN - GEG
1 stop14h 03mMultiple Airlines
Sun 3/169:27 amGEG - SAN
1 stop14h 07mMultiple Airlines
Deal found 2/18$188
This American Airlines deal was found by Cheapflights users on 2/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/256:30 amSAN - JAC
1 stop7h 28mAmerican Airlines
Tue 4/13:48 pmJAC - SAN
1 stop9h 10mAmerican Airlines
Deal found 2/20$209
This Alaska Airlines deal was found by Cheapflights users on 2/20. 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.
Thu 8/287:55 pmSAN - GEG
Nonstop2h 38mAlaska Airlines
Tue 9/27:00 amGEG - SAN
Nonstop2h 50mAlaska Airlines
Deal found 2/20$211
This Mytrip deal was found by Cheapflights users on 2/18. 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 4/109:08 pmSAN - BOI
1 stop15h 31mMultiple Airlines
Sun 4/1311:14 amBOI - SAN
2 stops38h 28mMultiple Airlines
Deal found 2/18$215
This Delta deal was found by Cheapflights users on 2/19. 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 10/167:00 amSAN - BOI
1 stop8h 30mDelta
Sun 10/195:40 amBOI - SAN
1 stop5h 29mDelta
Deal found 2/19$217
This Mytrip deal was found by Cheapflights users on 2/20. 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.
Sun 4/610:36 amSAN - BOI
2 stops25h 00mSpirit Airlines
Wed 4/92:34 pmBOI - SAN
3 stops25h 45mSpirit Airlines
Deal found 2/20$218
This United Airlines deal was found by Cheapflights users on 2/19. 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.
Thu 4/106:15 amSAN - BOI
1 stop5h 29mUnited Airlines
Sun 4/137:00 pmBOI - SAN
1 stop4h 30mUnited Airlines
Deal found 2/19$223
This Southwest deal was found by Cheapflights users on 2/19. 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 3/2610:50 amSAN - BOI
Nonstop2h 10mSouthwest
Fri 3/2812:05 pmBOI - SAN
Nonstop2h 15mSouthwest
Deal found 2/19$227
This Alaska Airlines deal was found by Cheapflights users on 2/19. 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.
Thu 3/139:08 amSAN - BOI
Nonstop2h 11mAlaska Airlines
Tue 3/186:46 pmBOI - SAN
1 stop23h 58mAlaska Airlines
Deal found 2/19$230

Find flights from San Diego to Idaho within your budget

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 February 20, 2025.

Fly from

San Diego

Fly to

Idaho

Route

Depart

Return

Price

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

Thu 3/13

8:33 pm-11:27 pm

Nonstop2h 54m

Spokane

Sun 3/16

7:25 am-10:20 am

Nonstop2h 55m

$154

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

Thu 3/13

10:00 am-5:10 pm

1 stop7h 10m

Spokane

Sun 3/16

6:10 pm-11:25 pm

1 stop5h 15m

$157

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

Tue 4/22

7:20 am-12:45 pm

1 stop5h 25m

Spokane

Sun 4/27

6:15 am-12:32 pm

1 stop6h 17m

$187

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

Sat 3/8

5:39 pm-7:42 am

1 stop14h 03m

Spokane

Sun 3/16

9:27 am-11:34 pm

1 stop14h 07m

$188

San DiegoJackson

SAN - JAC

SANJAC

San Diego

Tue 3/25

6:30 am-2:58 pm

1 stop7h 28m

Jackson Hole

Tue 4/1

3:48 pm-11:58 pm

1 stop9h 10m

$209

San DiegoBoise

SAN - BOI

SANBOI

San Diego

Thu 4/10

9:08 pm-1:39 pm

1 stop15h 31m

Boise Air Term. Gowen Fld

Sun 4/13

11:14 am-12:42 am

2 stops38h 28m

$215

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

Thu 4/3

8:31 pm-11:27 pm

Nonstop2h 56m

Spokane

Mon 4/7

6:04 pm-7:39 am

1 stop13h 35m

$217

San DiegoBoise

SAN - BOI

SANBOI

San Diego

Fri 4/11

7:35 pm-10:56 pm

Nonstop2h 21m

Boise Air Term. Gowen Fld

Tue 4/15

7:59 pm-11:59 pm

1 stop5h 00m

$217

San DiegoBoise

SAN - BOI

SANBOI

San Diego

Sun 4/6

10:36 am-12:36 pm

2 stops25h 00m

Boise Air Term. Gowen Fld

Wed 4/9

2:34 pm-3:19 pm

3 stops25h 45m

$218

San DiegoBoise

SAN - BOI

SANBOI

San Diego

Thu 4/10

6:15 am-12:44 pm

1 stop5h 29m

Boise Air Term. Gowen Fld

Sun 4/13

7:00 pm-10:30 pm

1 stop4h 30m

$223

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 53 results
1
2
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6

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.

Travel insights for flights from San Diego to Idaho

Get recent, data-driven insights about flights from San Diego to Idaho including ideal travel times, pricing trends, and more.

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 $436). 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 February 20, 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 February 20, 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.
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Overall

8.1

Food

7.1

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 20

10.0
Excellent

Tim,Jul 2024

DEN - SEA

Sheila did great! First time I have ever seen all three people in an exit row get out and read the safety information card AFTER the briefing. I like the boarding process. It seems a shame to UN-differentiate SW because of abuse of the early boarding process.

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Overall

8.1

Food

7.1

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 20

10.0
Excellent

Tim,Jul 2024

DEN - SEA

Sheila did great! First time I have ever seen all three people in an exit row get out and read the safety information card AFTER the briefing. I like the boarding process. It seems a shame to UN-differentiate SW because of abuse of the early boarding process.

Alaska Airlines
8.0
Very good
9,692 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Overall

8.1

Food

7.1

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 20

10.0
Excellent

Tim,Jul 2024

DEN - SEA

Sheila did great! First time I have ever seen all three people in an exit row get out and read the safety information card AFTER the briefing. I like the boarding process. It seems a shame to UN-differentiate SW because of abuse of the early boarding process.

Delta
8.0
Very good
8,220 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Overall

8.1

Food

7.1

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 20

10.0
Excellent

Tim,Jul 2024

DEN - SEA

Sheila did great! First time I have ever seen all three people in an exit row get out and read the safety information card AFTER the briefing. I like the boarding process. It seems a shame to UN-differentiate SW because of abuse of the early boarding process.

Hawaiian Airlines
7.9
Good
2,317 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Overall

8.1

Food

7.1

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 20

10.0
Excellent

Tim,Jul 2024

DEN - SEA

Sheila did great! First time I have ever seen all three people in an exit row get out and read the safety information card AFTER the briefing. I like the boarding process. It seems a shame to UN-differentiate SW because of abuse of the early boarding process.

United Airlines
7.4
Good
8,766 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Overall

8.1

Food

7.1

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 20

10.0
Excellent

Tim,Jul 2024

DEN - SEA

Sheila did great! First time I have ever seen all three people in an exit row get out and read the safety information card AFTER the briefing. I like the boarding process. It seems a shame to UN-differentiate SW because of abuse of the early boarding process.

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 $48. 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 (63%), SkyWest Airlines (54%) and Japan Airlines (44%).

  • 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 $98 on average our data indicates $314 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 $436). 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 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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$89Average$153FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$158Average$410FlexibilityNo cancel feeOn-time69%
DeltaCheapest$158Average$456FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$185Average$377FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$187Average$336FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$264Average$363FlexibilityNo cancel feeOn-time71%
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