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Cheap flights from Idaho to San Diego from $41

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Idaho to San Diego departing on 8/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Idaho to San Diego

Cheap round-trip flights

Southwest Logo
3:05 pm - 9:00 pmGEG-SAN
5h 55m1 stop
Southwest Logo
6:45 am - 2:30 pmSAN-GEG
7h 45m1 stop
$114Southwest
Find Deal
Sat, Sep 20 - Sat, Sep 27
Southwest Logo
11:30 am - 2:45 pmBOI-SAN
4h 15m1 stop
Southwest Logo
1:35 pm - 4:50 pmSAN-BOI
2h 15mnonstop
$128Southwest
Find Deal
Wed, Sep 3 - Wed, Sep 10
Spirit Airlines Logo
2:16 pm - 6:42 pmBOI-SAN
5h 26m1 stop
Spirit Airlines Logo
7:47 pm - 8:31 pmSAN-BOI
23h 44m1 stop
$131Spirit Airlines
Find Deal
Sat, Sep 6 - Sun, Sep 7
Spirit Airlines Logo
6:06 pm - 11:37 pmBOI-SAN
6h 31m1 stop
Spirit Airlines Logo
6:15 am - 5:11 pmSAN-BOI
9h 56m1 stop
$132Spirit Airlines
Find Deal
Thu, Aug 21 - Sun, Aug 24
Hawaiian Airlines Logo
7:07 am - 8:30 amBOI-SAN
2h 23mnonstop
Hawaiian Airlines Logo
8:21 pm - 11:43 pmSAN-BOI
2h 22mnonstop
$137Hawaiian Airlines
Find Deal
Thu, Sep 25 - Fri, Oct 3
Alaska Airlines Logo
7:00 am - 9:52 amGEG-SAN
2h 52mnonstop
Alaska Airlines Logo
8:03 pm - 10:52 pmSAN-GEG
2h 49mnonstop
$137Alaska Airlines
Find Deal
Tue, Aug 26 - Sat, Aug 30
Delta Logo
5:45 am - 10:00 amBOI-SAN
5h 15m1 stop
Delta Logo
3:35 pm - 10:32 pmSAN-BOI
5h 57m1 stop
$143Delta
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Tue, Sep 2 - Tue, Sep 9
Delta Logo
5:05 pm - 10:39 pmGEG-SAN
5h 34m1 stop
Delta Logo
1:55 pm - 9:11 pmSAN-GEG
7h 16m1 stop
$147Delta
Find Deal
Sat, Aug 30 - Mon, Sep 15
Hawaiian Airlines Logo
8:18 pm - 9:40 pmBOI-SAN
2h 22mnonstop
Hawaiian Airlines Logo
8:55 am - 12:18 pmSAN-BOI
2h 23mnonstop
$157Hawaiian Airlines
Find Deal
Thu, Sep 4 - Wed, Sep 10
Alaska Airlines Logo
7:00 am - 9:55 amGEG-SAN
2h 55mnonstop
Alaska Airlines Logo
8:59 pm - 11:56 pmSAN-GEG
2h 57mnonstop
$157Alaska Airlines
Find Deal
Sat, Oct 25 - Sat, Nov 1

Spirit Airlines flights from Idaho to San Diego

Our best Spirit Airlines deals on Idaho to San Diego flight tickets
Spirit Airlines
Sep 6
BOI2:16 pmBoise Air Term. Gowen Fld
5h 26m
1 stop
SAN6:42 pmSan Diego
Sep 7
SAN7:47 pmSan Diego
23h 44m
1 stop
BOI8:31 pmBoise Air Term. Gowen Fld
$131
Find similar
Spirit Airlines
Aug 21
BOI6:06 pmBoise Air Term. Gowen Fld
6h 31m
1 stop
SAN11:37 pmSan Diego
Aug 24
SAN6:15 amSan Diego
9h 56m
1 stop
BOI5:11 pmBoise Air Term. Gowen Fld
$132
Find similar
Spirit Airlines
Sep 4
BOI2:16 pmBoise Air Term. Gowen Fld
5h 26m
1 stop
SAN6:42 pmSan Diego
Sep 11
SAN8:25 amSan Diego
3h 56m
1 stop
BOI1:21 pmBoise Air Term. Gowen Fld
$133
Find similar

Hawaiian Airlines flights from Idaho to San Diego

Our best Hawaiian Airlines deals on Idaho to San Diego flight tickets
Hawaiian Airlines
Sep 25
BOI7:07 amBoise Air Term. Gowen Fld
2h 23m
SAN8:30 amSan Diego
Oct 3
SAN8:21 pmSan Diego
2h 22m
BOI11:43 pmBoise Air Term. Gowen Fld
$137
Find similar
Hawaiian Airlines
Sep 4
BOI8:18 pmBoise Air Term. Gowen Fld
2h 22m
SAN9:40 pmSan Diego
Sep 10
SAN8:55 amSan Diego
2h 23m
BOI12:18 pmBoise Air Term. Gowen Fld
$157
Find similar
Hawaiian Airlines
Aug 30
GEG6:40 amSpokane
2h 51m
SAN9:31 amSan Diego
Sep 15
SAN8:03 pmSan Diego
2h 49m
GEG10:52 pmSpokane
$166
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Idaho to San Diego 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, momondo users made 832,500 searches. Data last updated August 5, 2025.
Use the filters below to find and compare flights from Idaho to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Sat 9/20

3:05 pm-9:00 pm

1 stop5h 55m

San Diego

Sat 9/27

6:45 am-2:30 pm

1 stop7h 45m

$114

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

Wed 9/3

11:30 am-2:45 pm

1 stop4h 15m

San Diego

Wed 9/10

1:35 pm-4:50 pm

Nonstop2h 15m

$128

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

Sat 9/6

2:16 pm-6:42 pm

1 stop5h 26m

San Diego

Sun 9/7

7:47 pm-8:31 pm

1 stop23h 44m

$131

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

Thu 8/21

6:06 pm-11:37 pm

1 stop6h 31m

San Diego

Sun 8/24

6:15 am-5:11 pm

1 stop9h 56m

$132

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

Thu 9/25

7:07 am-8:30 am

Nonstop2h 23m

San Diego

Fri 10/3

8:21 pm-11:43 pm

Nonstop2h 22m

$137

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Tue 8/26

7:00 am-9:52 am

Nonstop2h 52m

San Diego

Sat 8/30

8:03 pm-10:52 pm

Nonstop2h 49m

$137

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

Tue 9/2

5:45 am-10:00 am

1 stop5h 15m

San Diego

Tue 9/9

3:35 pm-10:32 pm

1 stop5h 57m

$143

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Sat 8/30

5:05 pm-10:39 pm

1 stop5h 34m

San Diego

Mon 9/15

1:55 pm-9:11 pm

1 stop7h 16m

$147

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

Thu 9/4

8:18 pm-9:40 pm

Nonstop2h 22m

San Diego

Wed 9/10

8:55 am-12:18 pm

Nonstop2h 23m

$157

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Sat 10/25

7:00 am-9:55 am

Nonstop2h 55m

San Diego

Sat 11/1

8:59 pm-11:56 pm

Nonstop2h 57m

$157

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Diego from

How to get the cheapest flight ticket from Idaho to San Diego

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to San Diego?

If you are unable to visit San Diego during the month of August, then departing from Idaho during the month April is also very affordable. Most momondo users find prices during this month for around $267.

What is the cheapest day to depart on your flight to San Diego?

The cheapest day to depart from Idaho to San Diego is on a Wednesday. Travelers who choose to depart for San Diego on a Wednesday will often find tickets for as low as $341. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $449. These prices are subject to change though, so be sure to set up a Price Alert for flights to San Diego.

What is the cheapest time of day to depart on your flight to San Diego?

The cheapest time of day to fly to San Diego is at noon when flights can be purchased for as low as $337. Flights in the morning are often more expensive with an average ticket price of $394.

What is the cheapest Idaho to San Diego flight route?

Fly from Boise Air Term. Gowen Fld to San Diego for the best Idaho - San Diego flight prices

How far in advance should I book a flight to San Diego?

You are more likely to see cheaper flights to San Diego from Idaho when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $313 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from Idaho for as low as $229 on momondo.

What cabin class options are available on Idaho to San Diego flights?

There are 4 cabin classes available to choose from on Idaho to San Diego flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Idaho to San Diego flights?

No. A direct flight is the cheapest option for a flight between Idaho to San Diego.

Cheap Idaho to San Diego flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Idaho to San Diego

Best Price Found

$41

Fastest flight time

2h 10m

Direct flights

Every day

Airports in San Diego

1 airport
The best one-way flight to San Diego from Idaho in the past 72 hours is $41. The best round-trip flight deal from Idaho to San Diego found on momondo in the last 72 hours is $114.
The fastest flight from Idaho to San Diego takes 2h 10m
Direct flights go from Idaho to San Diego every day.
There is 1 airport near San Diego: San Diego (SAN)
Search flight deals

  • When did momondo last update prices for flights from Idaho to San Diego Airport?

    Prices for flights from Idaho to San Diego Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Idaho to San Diego Airport?

  • How old do you have to be to fly from Idaho to San Diego Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Idaho to San Diego Airport.

  • What documentation or ID do you need to fly to San Diego Airport?

    The travel and health documents required for your trip to San Diego Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Diego Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Idaho to San Diego?

Best airlines flying from Idaho to San Diego

Compare and see reviews for airlines that fly from Idaho to San Diego with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $96Free CancellationRating
6.3
8,051 reviews
Search Spirit Airlines flights
Hawaiian AirlinesPriceFrom $138Free CancellationRating
7.8
2,623 reviews
Search Hawaiian Airlines flights
DeltaPriceFrom $156Free CancellationRating
8.0
7,985 reviews
Search Delta flights
Alaska AirlinesPriceFrom $176Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $177Free CancellationRating
8.0
4,246 reviews
Search Southwest flights
United AirlinesPriceFrom $186Free CancellationRating
7.4
8,916 reviews
Search United Airlines flights

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Coronado
Chula Vista
El Cajon
Julian
National City
La Mesa
Imperial Beach
Poway
San Ysidro
Borrego Springs
Alpine
Lemon Grove
Santee

Why use momondo?

Why should I use momondo to find a flight deal from Idaho to San Diego?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Idaho to San Diego for you.

Can I find flights from Idaho to San Diego with flexible booking policies on momondo?

Flights from Idaho to San Diego with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Idaho to San Diego?

momondo helps you find the best flight between Idaho and San Diego by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Idaho to San Diego right now. Can momondo alert me if prices change?

Price alerts on flights to San Diego from Idaho are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your San Diego trip

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