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Cheap flights from San Diego to Idaho 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 San Diego to Idaho departing on 8/18. 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 San Diego to Idaho

Cheap round-trip flights

Spirit Airlines Logo
6:15 am - 1:21 pmSAN-BOI
6h 06m1 stop
Spirit Airlines Logo
2:16 pm - 11:24 pmBOI-SAN
10h 08m1 stop
$131Spirit Airlines
Find Deal
jue., sep. 18 - dom., sep. 21
Spirit Airlines Logo
6:15 am - 5:11 pmSAN-BOI
9h 56m1 stop
Spirit Airlines Logo
6:06 pm - 11:37 pmBOI-SAN
6h 31m1 stop
$133Spirit Airlines
Find Deal
jue., ago. 21 - lun., ago. 25
Alaska Airlines Logo
8:21 pm - 11:43 pmSAN-BOI
2h 22mnonstop
Alaska Airlines Logo
7:07 am - 8:30 amBOI-SAN
2h 23mnonstop
$137Alaska Airlines
Find Deal
jue., sep. 18 - dom., sep. 21
Alaska Airlines Logo
7:50 pm - 10:41 pmSAN-GEG
2h 51mnonstop
Alaska Airlines Logo
7:00 am - 9:55 amGEG-SAN
2h 55mnonstop
$137Alaska Airlines
Find Deal
mar., oct. 7 - sáb., oct. 11
Southwest Logo
4:15 pm - 12:35 amSAN-BOI
7h 20m1 stop
Southwest Logo
5:00 am - 9:15 amBOI-SAN
5h 15m1 stop
$156Southwest
Find Deal
vie., nov. 14 - dom., nov. 16
Delta Logo
11:05 am - 6:45 pmSAN-GEG
7h 40m1 stop
Delta Logo
5:00 am - 10:00 amGEG-SAN
5h 00m1 stop
$157Delta
Find Deal
mié., ago. 27 - mar., sep. 2
Southwest Logo
4:35 pm - 12:05 amSAN-BOI
6h 30m1 stop
Southwest Logo
5:00 am - 11:35 amBOI-SAN
7h 35m2 stops
$162Southwest
Find Deal
jue., ago. 21 - lun., ago. 25
Delta Logo
3:35 pm - 11:13 pmSAN-GEG
7h 38m1 stop
Delta Logo
9:15 am - 2:35 pmGEG-SAN
5h 20m1 stop
$167Delta
Find Deal
vie., sep. 26 - mar., sep. 30
United Airlines Logo
12:52 pm - 8:39 pmSAN-JAC
6h 47m1 stop
United Airlines Logo
3:05 pm - 7:42 pmJAC-SAN
5h 37m1 stop
$211United Airlines
Find Deal
sáb., sep. 13 - sáb., sep. 20
United Airlines Logo
7:00 am - 3:11 pmSAN-IDA
7h 11m1 stop
United Airlines Logo
4:00 pm - 8:25 pmIDA-SAN
5h 25m1 stop
$279United Airlines
Find Deal
sáb., sep. 13 - sáb., sep. 20

Spirit Airlines flights from San Diego to Idaho

Our best Spirit Airlines deals on San Diego to Idaho flight tickets
Spirit Airlines
Sep 18
SAN6:15 amSan Diego
6h 06m
1 stop
BOI1:21 pmBoise Air Term. Gowen Fld
Sep 21
BOI2:16 pmBoise Air Term. Gowen Fld
10h 08m
1 stop
SAN11:24 pmSan Diego
$131
Find similar
Spirit Airlines
Aug 21
SAN6:15 amSan Diego
9h 56m
1 stop
BOI5:11 pmBoise Air Term. Gowen Fld
Aug 25
BOI6:06 pmBoise Air Term. Gowen Fld
6h 31m
1 stop
SAN11:37 pmSan Diego
$133
Find similar
Spirit Airlines
Aug 22
SAN6:15 amSan Diego
9h 56m
1 stop
BOI5:11 pmBoise Air Term. Gowen Fld
Aug 25
BOI6:06 pmBoise Air Term. Gowen Fld
6h 31m
1 stop
SAN11:37 pmSan Diego
$134
Find similar

Hawaiian Airlines flights from San Diego to Idaho

Our best Hawaiian Airlines deals on San Diego to Idaho flight tickets
Hawaiian Airlines
Sep 12
SAN8:21 pmSan Diego
2h 22m
BOI11:43 pmBoise Air Term. Gowen Fld
Sep 19
BOI7:07 amBoise Air Term. Gowen Fld
2h 23m
SAN8:30 amSan Diego
$155
Find similar
Hawaiian Airlines
Oct 7
SAN6:09 pmSan Diego
4h 59m
1 stop
GEG11:08 pmSpokane
Oct 11
GEG4:17 pmSpokane
4h 32m
1 stop
SAN8:49 pmSan Diego
$156
Find similar
Hawaiian Airlines
Sep 12
SAN6:15 amSan Diego
7h 45m
1 stop
BOI3:00 pmBoise Air Term. Gowen Fld
Sep 19
BOI8:18 pmBoise Air Term. Gowen Fld
2h 22m
SAN9:40 pmSan Diego
$159
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated julio 31, 2025.
Use the filters below to find and compare flights from San Diego to Idaho that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San DiegoBoise

SAN - BOI

SANBOI

San Diego

jue. 9/18

6:15 am-1:21 pm

1 stop6h 06m

Boise Air Term. Gowen Fld

dom. 9/21

2:16 pm-11:24 pm

1 stop10h 08m

$131

San DiegoBoise

SAN - BOI

SANBOI

San Diego

jue. 8/21

6:15 am-5:11 pm

1 stop9h 56m

Boise Air Term. Gowen Fld

lun. 8/25

6:06 pm-11:37 pm

1 stop6h 31m

$133

San DiegoBoise

SAN - BOI

SANBOI

San Diego

jue. 9/18

8:21 pm-11:43 pm

Nonstop2h 22m

Boise Air Term. Gowen Fld

dom. 9/21

7:07 am-8:30 am

Nonstop2h 23m

$137

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

mar. 10/7

7:50 pm-10:41 pm

Nonstop2h 51m

Spokane

sáb. 10/11

7:00 am-9:55 am

Nonstop2h 55m

$137

San DiegoBoise

SAN - BOI

SANBOI

San Diego

vie. 11/14

4:15 pm-12:35 am

1 stop7h 20m

Boise Air Term. Gowen Fld

dom. 11/16

5:00 am-9:15 am

1 stop5h 15m

$156

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

mié. 8/27

11:05 am-6:45 pm

1 stop7h 40m

Spokane

mar. 9/2

5:00 am-10:00 am

1 stop5h 00m

$157

San DiegoBoise

SAN - BOI

SANBOI

San Diego

jue. 8/21

4:35 pm-12:05 am

1 stop6h 30m

Boise Air Term. Gowen Fld

lun. 8/25

5:00 am-11:35 am

2 stops7h 35m

$162

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

vie. 9/26

3:35 pm-11:13 pm

1 stop7h 38m

Spokane

mar. 9/30

9:15 am-2:35 pm

1 stop5h 20m

$167

San DiegoJackson

SAN - JAC

SANJAC

San Diego

sáb. 9/13

12:52 pm-8:39 pm

1 stop6h 47m

Jackson Hole

sáb. 9/20

3:05 pm-7:42 pm

1 stop5h 37m

$211

San DiegoIdaho Falls

SAN - IDA

SANIDA

San Diego

sáb. 9/13

7:00 am-3:11 pm

1 stop7h 11m

Idaho Falls Fanning Field

sáb. 9/20

4:00 pm-8:25 pm

1 stop5h 25m

$279

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 Idaho from

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

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 Idaho?

In general, April is the cheapest month to fly from San Diego to Idaho. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $232. If you don’t want to visit Idaho in April, then you should wait until August to fly from San Diego, when ticket prices are also cheap, with an average price of $269.

What is the cheapest day to depart on your flight to Idaho?

Our data shows that Wednesday is the least expensive day to fly to Idaho. Tickets to fly out on this day can be as low as $304. On the other hand, Saturday is the most expensive day to depart from San Diego because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $498.

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

According to our data, the cheapest time of day to fly to Idaho is at noon. momondo users have found flights departing from San Diego to Idaho at noon for as low as $262. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the afternoon is when there is more demand to fly to Idaho, so prices are often more expensive at around $496 per ticket.

What is the cheapest San Diego to Idaho flight route?

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

How far in advance should I book a flight to Idaho?

You are more likely to see cheaper flights to Idaho from San Diego when booking weeks ahead of your departure date. In general, you can expect to find flights to Idaho for around $315 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Idaho from San Diego for as low as $199 on momondo.

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

There are 4 cabin classes available to choose from on San Diego to Idaho 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 San Diego to Idaho flights?

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

Cheap San Diego to Idaho flight deals and tips

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

Best Price Found

$41

Fastest flight time

2h 10m

Direct flights

Every day

Airports in Idaho

6 airports
The best one-way flight to Idaho from San Diego in the past 72 hours is $41. The best round-trip flight deal from San Diego to Idaho found on momondo in the last 72 hours is $131.
The fastest flight from San Diego to Idaho takes 2h 10m
Direct flights go from San Diego to Idaho every day.
There are 6 airports near Idaho: West Yellowstone (WYS), Idaho Falls Fanning Field (IDA), Spokane (GEG), Boise Air Term. Gowen Fld (BOI), Jackson Hole (JAC), Hailey Sun Valley-Friedman (SUN)
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  • When did momondo last update prices for flights from San Diego Airport to Idaho?

    Prices for flights from San Diego Airport to Idaho refresh daily.

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

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

    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 San Diego Airport to Idaho.

  • What documentation or ID do you need to fly to Idaho?

    The travel and health documents you'll need for your trip to Idaho may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Idaho. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

Best airlines flying from San Diego to Idaho

Compare and see reviews for airlines that fly from San Diego to Idaho with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $88Free CancellationRating
6.3
8,049 reviews
Search Spirit Airlines flights
DeltaPriceFrom $144Free CancellationRating
8.0
7,981 reviews
Search Delta flights
SouthwestPriceFrom $166Free CancellationRating
8.0
4,246 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $182Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $202Free CancellationRating
7.4
8,900 reviews
Search United Airlines flights
Hawaiian AirlinesPriceFrom $207Free CancellationRating
7.8
2,611 reviews
Search Hawaiian Airlines flights
American AirlinesPriceFrom $264Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from San Diego to Idaho. Millions of users trust and use momondo every year so you are in good hands.

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

momondo does allow users to show only those flights to Idaho from San Diego which offer a flexible booking policy as well as other useful filters and features.

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

momondo provides multiple filters to help you find the best flight to Idaho from San Diego. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes. momondo can track prices for San Diego to Idaho flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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