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Cheap flights from San Diego to Idaho from $55

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 12/4. 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

Enter your travel dates to find the best prices.
Frontier Logo
10:57 am - 4:06 pmSAN-GEG
5h 09m1 stop
Frontier Logo
12:08 pm - 11:59 pmGEG-SAN
11h 51m1 stop
$110Frontier
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木, 12月 4 - 木, 12月 11
Frontier Logo
4:47 pm - 11:59 amSAN-BOI
18h 12m1 stop
Frontier Logo
12:54 pm - 12:01 amBOI-SAN
12h 07m1 stop
$120Frontier
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木, 1月 8 - 月, 1月 12
Alaska Airlines Logo
8:58 pm - 11:59 pmSAN-GEG
3h 01mnonstop
Alaska Airlines Logo
7:00 am - 10:00 amGEG-SAN
3h 00mnonstop
$137Alaska Airlines
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水, 12月 3 - 水, 12月 10
Alaska Airlines Logo
9:10 am - 12:42 pmSAN-BOI
2h 32mnonstop
Alaska Airlines Logo
7:00 am - 8:29 amBOI-SAN
2h 29mnonstop
$156Alaska Airlines
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水, 12月 3 - 水, 12月 10
Delta Logo
1:41 pm - 6:56 pmSAN-GEG
5h 15m1 stop
Delta Logo
1:15 pm - 6:12 pmGEG-SAN
4h 57m1 stop
$163Delta
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火, 12月 2 - 水, 12月 10
Delta Logo
3:25 pm - 9:15 pmSAN-GEG
5h 50m1 stop
Delta Logo
5:00 am - 12:50 pmGEG-SAN
7h 50m1 stop
$168Delta
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火, 12月 23 - 火, 12月 30
Southwest Logo
9:30 am - 5:10 pmSAN-BOI
6h 40m2 stops
Southwest Logo
1:25 pm - 2:35 pmBOI-SAN
2h 10mnonstop
$172Southwest
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水, 12月 3 - 水, 12月 10
Southwest Logo
7:35 am - 2:55 pmSAN-BOI
6h 20m1 stop
Southwest Logo
3:35 pm - 8:50 pmBOI-SAN
6h 15m1 stop
$176Southwest
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水, 2月 11 - 水, 2月 18
Hawaiian Airlines Logo
12:30 pm - 7:16 pmSAN-BOI
5h 46m1 stop
Hawaiian Airlines Logo
7:00 am - 12:17 pmBOI-SAN
6h 17m1 stop
$206Hawaiian Airlines
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火, 3月 10 - 水, 3月 11
Hawaiian Airlines Logo
9:10 am - 2:34 pmSAN-GEG
5h 24m1 stop
Hawaiian Airlines Logo
7:00 am - 9:50 amGEG-SAN
2h 50mnonstop
$220Hawaiian Airlines
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土, 2月 21 - 火, 2月 24

Southwest flights from San Diego to Idaho

Our best Southwest deals on San Diego to Idaho flight tickets
Southwest
Dec 3
SAN9:30 amSan Diego
6h 40m
2 stops
BOI5:10 pmBoise Air Term. Gowen Fld
Dec 10
BOI1:25 pmBoise Air Term. Gowen Fld
2h 10m
SAN2:35 pmSan Diego
$172
Find similar
Southwest
Feb 11
SAN7:35 amSan Diego
6h 20m
1 stop
BOI2:55 pmBoise Air Term. Gowen Fld
Feb 18
BOI3:35 pmBoise Air Term. Gowen Fld
6h 15m
1 stop
SAN8:50 pmSan Diego
$176
Find similar
Southwest
Dec 3
SAN2:00 pmSan Diego
7h 25m
2 stops
BOI10:25 pmBoise Air Term. Gowen Fld
Dec 10
BOI12:55 pmBoise Air Term. Gowen Fld
5h 10m
1 stop
SAN5:05 pmSan Diego
$182
Find similar

United Airlines flights from San Diego to Idaho

Our best United Airlines deals on San Diego to Idaho flight tickets
United Airlines
Jan 12
SAN6:15 amSan Diego
8h 55m
2 stops
BOI4:10 pmBoise Air Term. Gowen Fld
Jan 17
BOI10:48 amBoise Air Term. Gowen Fld
5h 04m
1 stop
SAN2:52 pmSan Diego
$204
Find similar
United Airlines
Dec 5
SAN6:15 amSan Diego
6h 20m
1 stop
BOI1:35 pmBoise Air Term. Gowen Fld
Dec 7
BOI9:40 amBoise Air Term. Gowen Fld
6h 24m
1 stop
SAN3:04 pmSan Diego
$267
Find similar
United Airlines
Nov 14
SAN6:45 amSan Diego
5h 55m
1 stop
SUN1:40 pmHailey Sun Valley-Friedman
Nov 14
SUN2:43 pmHailey Sun Valley-Friedman
7h 11m
1 stop
SAN8:54 pmSan Diego
$435
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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 11月 3, 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 DiegoSpokane

SAN - GEG

SANGEG

San Diego

木 12/4

10:57 am-4:06 pm

1 stop5h 09m

Spokane

木 12/11

12:08 pm-11:59 pm

1 stop11h 51m

$110

San DiegoBoise

SAN - BOI

SANBOI

San Diego

木 1/8

4:47 pm-11:59 am

1 stop18h 12m

Boise Air Term. Gowen Fld

月 1/12

12:54 pm-12:01 am

1 stop12h 07m

$120

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

水 12/3

8:58 pm-11:59 pm

Nonstop3h 01m

Spokane

水 12/10

7:00 am-10:00 am

Nonstop3h 00m

$137

San DiegoBoise

SAN - BOI

SANBOI

San Diego

水 12/3

9:10 am-12:42 pm

Nonstop2h 32m

Boise Air Term. Gowen Fld

水 12/10

7:00 am-8:29 am

Nonstop2h 29m

$156

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

火 12/2

1:41 pm-6:56 pm

1 stop5h 15m

Spokane

水 12/10

1:15 pm-6:12 pm

1 stop4h 57m

$163

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

火 12/23

3:25 pm-9:15 pm

1 stop5h 50m

Spokane

火 12/30

5:00 am-12:50 pm

1 stop7h 50m

$168

San DiegoBoise

SAN - BOI

SANBOI

San Diego

水 12/3

9:30 am-5:10 pm

2 stops6h 40m

Boise Air Term. Gowen Fld

水 12/10

1:25 pm-2:35 pm

Nonstop2h 10m

$172

San DiegoBoise

SAN - BOI

SANBOI

San Diego

水 2/11

7:35 am-2:55 pm

1 stop6h 20m

Boise Air Term. Gowen Fld

水 2/18

3:35 pm-8:50 pm

1 stop6h 15m

$176

San DiegoBoise

SAN - BOI

SANBOI

San Diego

火 3/10

12:30 pm-7:16 pm

1 stop5h 46m

Boise Air Term. Gowen Fld

水 3/11

7:00 am-12:17 pm

1 stop6h 17m

$206

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

土 2/21

9:10 am-2:34 pm

1 stop5h 24m

Spokane

火 2/24

7:00 am-9:50 am

Nonstop2h 50m

$220

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, September 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 $216. If you don’t want to visit Idaho in September, then you should wait until April to fly from San Diego, when ticket prices are also cheap, with an average price of $232.

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 $272. 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 $469.

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 $247. 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 $506 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 $308 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 $188 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.

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

$171

Fastest flight time

2h 10m

Direct flights

Every day

Airports in Idaho

2 airports
The best one-way flight to Idaho from San Diego in the past 72 hours is $171. The best round-trip flight deal from San Diego to Idaho found on momondo in the last 72 hours is $177.
The fastest flight from San Diego to Idaho takes 2h 10m
Direct flights go from San Diego to Idaho every day.
There are 2 airports near Idaho: Boise Air Term. Gowen Fld (BOI), Hailey Sun Valley-Friedman (SUN)
Search flight deals

  • 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 $100Free CancellationRating
6.3
8,111 reviews
Search Spirit Airlines flights
Hawaiian AirlinesPriceFrom $155Free CancellationRating
7.8
2,799 reviews
Search Hawaiian Airlines flights
DeltaPriceFrom $156Free CancellationRating
7.9
8,001 reviews
Search Delta flights
SouthwestPriceFrom $157Free CancellationRating
8.0
4,238 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $167Free CancellationRating
8.0
11,234 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $202Free CancellationRating
7.4
8,996 reviews
Search United 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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水 12/3
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