Cheap flights from San Diego to Idaho from $71
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 11/25. 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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Fly from
Fly to
Route
Depart
Return
San DiegoBoise
SAN San Diego - BOI Boise Air Term. Gowen Fld
SANBOI
San Diego
Tue 1/26
7:10 pm-12:04 am
1 stop3h 54m
Boise Air Term. Gowen Fld
Wed 1/27
11:30 am-4:06 pm
1 stop5h 36m
San DiegoBoise
SAN San Diego - BOI Boise Air Term. Gowen Fld
SANBOI
San Diego
Tue 2/2
7:10 pm-12:04 am
1 stop3h 54m
Boise Air Term. Gowen Fld
Wed 2/3
5:45 pm-11:47 pm
1 stop7h 02m
San DiegoBoise
SAN San Diego - BOI Boise Air Term. Gowen Fld
SANBOI
San Diego
Thu 12/10
8:24 am-8:56 pm
1 stop11h 32m
Boise Air Term. Gowen Fld
Mon 12/14
9:51 pm-7:29 am
1 stop10h 38m
San DiegoBoise
SAN San Diego - BOI Boise Air Term. Gowen Fld
SANBOI
San Diego
Thu 12/10
8:24 am-8:56 pm
1 stop11h 32m
Boise Air Term. Gowen Fld
Mon 12/14
9:51 pm-6:11 pm
2 stops21h 20m
San DiegoBoise
SAN San Diego - BOI Boise Air Term. Gowen Fld
SANBOI
San Diego
Fri 12/4
6:49 pm-10:27 pm
Nonstop2h 38m
Boise Air Term. Gowen Fld
Mon 12/7
4:47 pm-6:13 pm
Nonstop2h 26m
San DiegoBoise
SAN San Diego - BOI Boise Air Term. Gowen Fld
SANBOI
San Diego
Tue 11/10
4:27 pm-7:53 pm
Nonstop2h 26m
Boise Air Term. Gowen Fld
Mon 11/16
6:43 pm-8:03 pm
Nonstop2h 20m
San DiegoBoise
SAN San Diego - BOI Boise Air Term. Gowen Fld
SANBOI
San Diego
Thu 11/5
10:00 am-1:20 pm
Nonstop2h 20m
Boise Air Term. Gowen Fld
Mon 11/9
6:35 am-7:45 am
Nonstop2h 10m
San DiegoBoise
SAN San Diego - BOI Boise Air Term. Gowen Fld
SANBOI
San Diego
Thu 11/12
10:00 am-1:20 pm
Nonstop2h 20m
Boise Air Term. Gowen Fld
Mon 11/16
8:20 am-9:45 am
Nonstop2h 25m
San DiegoBoise
SAN San Diego - BOI Boise Air Term. Gowen Fld
SANBOI
San Diego
Fri 11/13
4:01 pm-11:33 pm
1 stop6h 32m
Boise Air Term. Gowen Fld
Sun 11/15
6:20 am-10:12 am
1 stop4h 52m
San DiegoBoise
SAN San Diego - BOI Boise Air Term. Gowen Fld
SANBOI
San Diego
Tue 10/27
8:45 am-6:03 pm
1 stop8h 18m
Boise Air Term. Gowen Fld
Thu 10/29
7:10 pm-10:27 pm
1 stop4h 17m
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, February 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 $221. If you don’t want to visit Idaho in February, then you should wait until October to fly from San Diego, when ticket prices are also cheap, with an average price of $263.
What is the cheapest day to depart on your flight to Idaho?
Our data shows that Saturday is the least expensive day to fly to Idaho. Tickets to fly out on this day can be as low as $242. On the other hand, Monday 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 $362.
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 $209. 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 morning is when there is more demand to fly to Idaho, so prices are often more expensive at around $303 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 from San Diego 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 $280 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 $200 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.
What is the cheapest airline that flies from San Diego to Idaho?
Delta, Southwest, and Alaska Airlines are the most popular carriers operating from San Diego to Idaho
What airlines fly to Idaho?
Alaska Airlines, Allegiant Air and Southwest are the top three most popular airlines that fly to Idaho from San Diego according to our data. Alaska Airlines is the first choice among our users, with 38% of people opting to fly with this airline when traveling to Idaho. Keep in mind that there are 8 different airlines that fly to Idaho on a routine basis, so you have a few additional options to choose from.
How many flights depart from San Diego to Idaho on average per day?
As of October 2026, 3 flights take off from San Diego and land in Idaho each day. The most common flight departure time for this route is 10:00AM, with 75% of daily flights taking off at noon.
How many flights depart from San Diego to Idaho on average per week?
22 flights are operational weekly from San Diego to Idaho as of October 2026. The most popular departure day for this route is Mon, with 23% of flights per week taking off on this day.
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
Frequently asked questions about flying from San Diego to Idaho
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?
As of October 2026, there are 5 operators available to choose from 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?
momondo data reveals that the most frequently booked plane model on the route from San Diego to Idaho is Boeing 737-800 Passenger/BBJ2 (winglets), representing 29.05% of all bookings. The subsequent popular models are Boeing 737 MAX 8 at 28.38%, Boeing 737 at 11.49%, and Embraer 175 at 10.81%.
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 | ||
|---|---|---|---|---|---|
| PriceFrom $108 | Free Cancellation | Rating 7.8 8,653 reviews | |||
| PriceFrom $134 | Free Cancellation | Rating 7.4 10,345 reviews | |||
| PriceFrom $141 | Free Cancellation | Rating 7.9 13,049 reviews | |||
| PriceFrom $143 | Free Cancellation | Rating 7.1 3,044 reviews | |||
| PriceFrom $157 | Free Cancellation | Rating 7.9 4,221 reviews |
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.