$57 Find Cheap Flights from San Diego to Idaho

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Diego to Idaho departing on 7/28. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Idaho

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Diego to Idaho.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Diego to Idaho.
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Flights Deals

Best Idaho Flight Deals from San Diego

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Boise
Boise1 stop$150
Idaho Falls
Idaho Falls1 stop$179
Hailey
Hailey1 stop$307
Pocatello
Pocatello1 stop$537
Spokane
Spokane1 stop$157
Boise
Boise1 stop$150
Idaho Falls
Idaho Falls1 stop$179
Hailey
Hailey1 stop$307
Pocatello
Pocatello1 stop$537
Spokane
Spokane1 stop$157

Cheap Flights from San Diego to Idaho

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Diego to Idaho that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Diego to Idaho

Fri, Jul 11 - Mon, Jul 14
Spirit Airlines Logo
6:15 am - 6:52 pmSAN-BOI
11h 37m1 stop
Spirit Airlines Logo
7:48 pm - 11:06 pmBOI-SAN
4h 18m1 stop
$150Spirit Airlines
Find Deal
Fri, Aug 22 - Sun, Aug 24
Spirit Airlines Logo
6:15 am - 6:26 pmSAN-BOI
11h 11m1 stop
Spirit Airlines Logo
7:30 pm - 7:21 amBOI-SAN
12h 51m1 stop
$153Spirit Airlines
Find Deal
Tue, Aug 26 - Tue, Sep 2
Delta Logo
1:57 pm - 9:11 pmSAN-GEG
7h 14m1 stop
Delta Logo
5:00 am - 10:00 amGEG-SAN
5h 00m1 stop
$157Delta
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Tue, Aug 26 - Tue, Sep 2
Southwest Logo
2:20 pm - 10:30 pmSAN-GEG
8h 10m2 stops
Southwest Logo
6:15 am - 11:35 amGEG-SAN
5h 20m1 stop
$162Southwest
Find Deal
Wed, Aug 20 - Sun, Aug 24
Alaska Airlines Logo
8:03 pm - 10:52 pmSAN-GEG
2h 49mnonstop
Alaska Airlines Logo
7:00 am - 9:52 amGEG-SAN
2h 52mnonstop
$165Alaska Airlines
Find Deal
Wed, Aug 20 - Sun, Aug 24
Delta Logo
7:15 pm - 11:36 pmSAN-GEG
4h 21m1 stop
Delta Logo
5:00 am - 10:04 amGEG-SAN
5h 04m1 stop
$167Delta
Find Deal
Fri, Sep 26 - Mon, Sep 29
Alaska Airlines Logo
8:03 pm - 10:52 pmSAN-GEG
2h 49mnonstop
Alaska Airlines Logo
5:46 pm - 10:53 pmGEG-SAN
5h 07m1 stop
$185Alaska Airlines
Find Deal
Thu, Jul 31 - Sun, Aug 3
Southwest Logo
4:50 pm - 12:30 amSAN-GEG
7h 40m2 stops
Southwest Logo
6:10 am - 1:10 pmGEG-SAN
7h 00m1 stop
$218Southwest
Find Deal
Sun, Jul 27 - Sun, Aug 3
United Airlines Logo
10:54 am - 3:57 pmSAN-BOI
4h 03m1 stop
United Airlines Logo
5:42 pm - 10:14 pmBOI-SAN
5h 32m1 stop
$268United Airlines
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Sun, Aug 17 - Wed, Aug 20
United Airlines Logo
6:15 am - 1:48 pmSAN-JAC
6h 33m1 stop
United Airlines Logo
4:10 pm - 10:14 pmJAC-SAN
7h 04m1 stop
$270United Airlines
Find Deal
Useful Info

KAYAK's insights & trends for San Diego to Idaho flights

Get data-powered insights and trends into flights from San Diego to Idaho to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest San Diego to Idaho flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from San Diego to Idaho.

The cheapest ticket to Idaho from San Diego found in the last 72 hours was to Boise, at $169 round-trip. The most popular route is from San Diego (SAN) to Boise (BOI), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $169.

Can I save money by flying with a layover from San Diego to Idaho?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $447, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from San Diego to Idaho?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Diego to Idaho, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from San Diego to Idaho is April, when tickets cost $237 (return) on average. On the other hand, the most expensive months are March and December, when the average cost of round-trip tickets is $498 and $406 respectively.

What’s the cheapest day of the week to fly from San Diego to Idaho?

The average price of all round-trip flights from San Diego to Idaho clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Idaho on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Saturday is the most expensive day to fly from San Diego to Idaho. For your return ticket, we recommend flying on a Thursday and avoiding Saturdays for the best deals.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Diego to Idaho, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from San Diego to Idaho, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.


Good to know

Low seasonApril
High seasonJuly
Cheapest flight$57
Best time to beat the crowds with an average 1% drop in price.
Most popular time to fly with an average 8% increase in price.
Flight from San Diego to Boise

FAQs - booking Idaho flights

  • How does KAYAK find such low prices on flights from San Diego to Idaho?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Diego to Idaho.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Diego to Idaho?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from San Diego to Idaho is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Diego to Idaho?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from San Diego to Idaho with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Diego to Idaho?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from San Diego to Idaho up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Idaho?

    The cheapest time of day to fly to Idaho is generally in the afternoon, when round-trip flights cost $267 on average. Morning departures are around 28% cheaper than evening flights, on average. The most expensive time of day to fly to Idaho is generally in the evening, which is peak travel time and where the average cost of a ticket is $479.

Reviews of the top 5 airlines serving from San Diego to Idaho

 
See real verified KAYAK customer reviews for airlines flying from San Diego to Idaho. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Diego to Idaho? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 10000 reviews
7.1Food
7.8Comfort
8.5Crew
8.1Boarding
7.1Entertainment
Airline reviews

The plane was delayed a bit. It wasn't a huge problem though, as we were heading back home.

8.0 ExcellentCarlos, Jun 2025SAN - AUS
Read more Alaska Airlines reviews

The plane was delayed a bit. It wasn't a huge problem though, as we were heading back home.

Flight was great. Boarding was crazy because another flight was boarding late next to ours so everyone was standing and in the way.

very good but no blankets for overnight flight or tv screens…

We were in 1st Class. Excellent service. Easy boarding. No too difficult to speak with someone on the phone. Breakfast was not eatable for me. No screen to watch movies. I don't have or want a tablet. This is first class there should be screens. Even if I had a tablet there was no place to put it. There is a place to put a tablet in economy. Seats were a bit lumpy.

A cheerful and effective crew. Tasty pre-order food options.

My youngest didn't have a assigned seat until we biard6the plane.

There was no seating at the gate, no where to charge your devices, super crowded. Boarding in group F meant all luggage space was taken when it was time for me to board. The boarding crew was short with everyone and seemed irritated. The luggage space was insufficient, the seat was too small for me (6'4") and very uncomfortable trip. I was in a middle seat between a person snoring the whole trip and a person with very strong body odor. The flight crew was terse and unfriendly, seemed irritated and impatient. Yelled a lot at people with earbuds in, understandable. Finally, we arrived 10 minutes early, only to sit on the tarmac for 20 minutes and wait for a gate. Worst flight experience I've had in years.

The flight was delayed by 3 hours and 30 minutes without any explanation.

A little delay but nice flight, nice team. Thank you.

They lock the bathrooms too soon before landing! My bladder was bursting for over an hour. Then the plane had to sit on the taxiway for 1 hour. People started rushing to the bathroom. Creating a dangerous situation.

Southwest is Southwest. No frills. If you're luck enough to get a happy crew (we did), then it makes for a nicer flight.

It was a perfect flight in all aspects! Both legs!

Great flight, 47 passengers on a 180 seat plane. Stewardess was pleasant and cheerful.

I liked the crew member who gave flight instructions on "in case of a problem:. The seats are so small that only a young teenager could sit in middle seat.

Great flight staff. Ease of boarding. Overall, very uneventful and easy trip.

Employees were kind and funny, as always! Flight was late but no announcements were made for people with tight connections to help them transition quickly. No service due to turbulence.

I recently flew Southwest from San Jose to Honolulu. I was very impressed with the flight crew, especially the flight attendant in charge of the front of the plane. She came through the aisle at least five times for drinks and water, and two times for snacks. I have not seen such service since I flew first class. Also, for the first time, they gave us the correct baggage claim number, and the luggage came out quickly. I can't wait for Southwest to have assigned seating! I absolutely hate the Cattle Call boarding procedure and the mad dash to get seats and overhead bins. However, the boarding was efficient.

We had a nice flight. Boarding was easy, our seats were comfortable and the on board service was pleasant.

Service was great, boarding and exiting went smoothly, and the flight was very pleasant.

Was as expected. Crowed planes. Too many carryons delaying takeoff. But the ride only took an hour and saved me a lot of time SFO is a not a great airport.

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

It would be nice if was given wires ear buds. Overall was a good experience was able to sleep on the plane

737-800 in first class was pretty dumpy. Seat had an uncomfortable angle, storage under the seat was blocked so even my very modest backpack didn't fit, power outlet was flaky. Weird tiny seat pockets that couldn't hold a gallon ziploc bag, emesis bag missing, etc. etc. No in-flight service due to turbulence. Crew was excellent, boarding was smooth despite a full flight.

Delta flight was on time, seats were comfortable, and crew was nice.

Thank you for not flipping the plane on the run way. You guys get a 5 star rating for the flight!!!

Boarding is, as it always is… horrible. Gate lice. Slow moving zones. Too many people with carry ons

It was terrible, if they ran flights on time it would make a big difference.

Delta seems to be improving in many areas, except they are super bad with the food available. Bring back normal food service on long flights.

I actually received a notification from kayak on email but not one by text from Delta when my departure gait changed and I almost missed my flight

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

Very comfortable (upgraded to business class). The audio on my screen didn’t work, but I managed to play the audio through my phone while watching the screen.

I was supposed to be on business class at first class from Denver back to Miami due to weather changes. I missed my connection and it’s put on a flight to Fort Lauderdale. Instead of honoring my business class/1st class ticket, they put me in coach, but there were two first class seats open. I think it’s absolutely disgusting that I paid for first class $1300 ticket and they put me in economy and they had to open seats available and I have still not been refunded the difference. I ended up having to eat a snack box instead of the meal I was supposed to get and did not get home till 2 AM so I think that’s a little pathetic that I had to live off crackers for dinner And my poor dog ate some cheese and salami. Oh yes, apparently when they switched me to the new flight they forgot to mention I had a service dog

Boarding seemed to be organized bedlam. For what ever reason, preboarding took longer than 20 minutes. Made the plane 20 minutes late taking off. Luckily we arrived on time. Flight crew seemed very friendly. Only slight turbulence.

The personnel were professional and friendly. The Boeing 737 Max 9 is too claustrophobic and was very warm at both airport gates, and still warm in the air.

While the staff was pleasant and helpful, the following observations are for your awareness. There was some delay on the tarmac on take off and landing. The paid lunch/food offerings were limited. Entertainment was only available on WiFi at a cost.

get E+, a must for 5 hours flight if you are tall

The first flight was better in terms of the aircraft.

The gate was too far away for the connecting flight

Compared with other carriers business class for an overnight was not worth the extra expense.

Good experience except for the drunk woman who was with a child. Sad

Too many time late and postponed No electrical power for my electric devices

Spirit is by far the worst airline to travel with, period. Seats are cardboard, flight attendants need anger management and if you ask for water, you’re basically a criminal. I don’t care how much it costs but I will travel with an airline who actually cares about their customers. Oh and one more thing, the next time your gate agent puts his foot on someone’s baggage's scale, I hope they get what’s coming next, a viral video of your scams. You suck Spirit, do better.

I mean, it’s Spirit. But it was frustrating to have our flight canceled, get bumped to a later flight, and then Spirit was unwilling to check our bag until 4 hours before our flight… tell us we could not sit in the waiting area’s chairs… and really negative experience getting checked in and dropping the bag.

terrible service, no room for a dog underfoot, a broken chair that is impossible to sit on and all this costs a lot of money

It was fast but uncomfortable seats. Had to pay a bit extra not sure why? Maybe in selection of all my 4 tix together ? Just knew I had a balance before getting boarding pass online when departing from satx ? And flight was delayed..

Last minute 2-3 hr delay in flight schedule; no explanation Unexpected extra $52 charge What's the benefit of choosing a cheap airline if you trick people last minute and force them to pay extra last minute? Did not appreciate being cornered.

Seats are uncomfortable and too close together. Also, you missed my connection in Vegas on the way back and I ended up sleeping in the airport, flying back to Burbank instead of LAX and I got home 12 hours late.

Surprising everything went well. Nice attendants and fast getting on and off the plane. Overall, was happy with the experience.

Non-professional acting crew, Very uncomfortable seats…!! Very bad pricing with all the add-ons for seat choice, luggage fees, etc….soon you’ll charge extra for oxygen. The ticket price means Nothing because in the end, the actual amount i paid, i could have and will in the future continue to fly on a real airline…

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