SAN - IDA

$109 Find Cheap Flights from San Diego to Idaho Falls

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 Falls departing on 1/15. 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, 0 bags

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Diego to Idaho Falls, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Diego to Idaho Falls, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$212
Overall average: $441
Multiple Airlines
Wed 1/7Fri 1/9
SAN - IDA • 1 stop
Cheapest one-way
$109
Alaska Airlines
Thu 1/15
SAN - IDA • 1 stop
When to travel
May
Cheapest • 22% price drop
September
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Idaho Falls!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from San Diego to Idaho Falls (SAN-IDA)

 
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 Falls 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 Falls

Wed, Jan 7 - Fri, Jan 9
Multiple Airlines Logo
1:03 pm - 12:44 pm
SAN
-
IDA
22h 41m1 stop
Multiple Airlines Logo
5:40 pm - 1:51 pm
IDA
-
SAN
21h 11m1 stop
$212Multiple Airlines
Fri, Jan 30 - Tue, Feb 3
Alaska Airlines Logo
7:03 pm - 6:18 pm
SAN
-
IDA
22h 15m1 stop
Alaska Airlines Logo
9:00 am - 3:29 pm
IDA
-
SAN
7h 29m1 stop
$244Alaska Airlines
Fri, Jan 23 - Sun, Jan 25
Alaska Airlines Logo
8:42 pm - 10:59 pm
SAN
-
IDA
25h 17m1 stop
Alaska Airlines Logo
6:58 pm - 8:58 pm
IDA
-
SAN
27h 00m1 stop
$254Alaska Airlines
Thu, Jan 8 - Mon, Jan 12
Alaska Airlines Logo
6:15 am - 10:59 pm
SAN
-
IDA
15h 44m1 stop
Alaska Airlines Logo
6:58 pm - 1:19 pm
IDA
-
SAN
19h 21m1 stop
$264Alaska Airlines
Fri, Jan 9 - Mon, Jan 12
Alaska Airlines Logo
7:03 pm - 6:18 pm
SAN
-
IDA
22h 15m1 stop
Alaska Airlines Logo
6:58 pm - 7:19 pm
IDA
-
SAN
25h 21m1 stop
$274Alaska Airlines
Wed, Jan 7 - Fri, Jan 9
Alaska Airlines Logo
2:20 pm - 10:59 pm
SAN
-
IDA
7h 39m1 stop
Alaska Airlines Logo
6:58 pm - 1:21 pm
IDA
-
SAN
19h 23m2 stops
$276Alaska Airlines
Fri, Jan 23 - Sun, Jan 25
Alaska Airlines Logo
7:03 pm - 6:18 pm
SAN
-
IDA
22h 15m1 stop
Alaska Airlines Logo
6:58 pm - 9:55 am
IDA
-
SAN
15h 57m2 stops
$277Alaska Airlines
Fri, Jan 30 - Tue, Feb 3
Alaska Airlines Logo
9:11 am - 10:59 pm
SAN
-
IDA
12h 48m2 stops
Alaska Airlines Logo
9:00 am - 3:29 pm
IDA
-
SAN
7h 29m1 stop
$287Alaska Airlines
Thu, Jan 8 - Mon, Jan 12
Alaska Airlines Logo
4:01 pm - 10:59 pm
SAN
-
IDA
5h 58m1 stop
Alaska Airlines Logo
6:58 pm - 1:25 pm
IDA
-
SAN
19h 27m2 stops
$288Alaska Airlines
Thu, Jan 8 - Sat, Jan 10
United Airlines Logo
9:00 am - 3:31 pm
SAN
-
IDA
5h 31m1 stop
United Airlines Logo
10:51 am - 3:04 pm
IDA
-
SAN
5h 13m1 stop
$289United Airlines
Booking Insights

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

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

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

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

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

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

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 Falls, 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 Falls is May, where tickets cost $309 (return) on average. On the other hand, the most expensive months are October and September, where the average cost of round-trip tickets is $648 and $501 respectively.

Good to know

Low seasonOctober
Cheapest flight$109
Best time to beat the crowds but there is an average 62% increase in price.
Most popular time to fly with an average 25% increase in price.
Flight from San Diego to Idaho Falls

When to book flights from San Diego to Idaho Falls

Are your dates flexible? Find out the best times to travel from San Diego to Idaho Falls based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from San Diego to Idaho Falls

  • What is the cheapest flight from San Diego to Idaho Falls?

    In the last 3 days, the lowest price for a flight from San Diego to Idaho Falls was $109 for a one-way ticket and $212 for a round-trip.

  • Do I need a passport to fly between San Diego and Idaho Falls?

    A passport is not required to fly from San Diego to Idaho Falls.

  • Which airports will I be using when flying from San Diego to Idaho Falls?

    When flying out of San Diego you will be using San Diego. You will be landing at Idaho Falls, also known as Idaho Falls Fanning Field.

  • Which aircraft models fly most regularly from San Diego to Idaho Falls?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from San Diego to Idaho Falls?

    Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between San Diego and Idaho Falls, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from San Diego to Idaho Falls, Alaska Airlines or Delta?

    The two airlines most popular with KAYAK users for flights from San Diego to Idaho Falls are Alaska Airlines and Delta. With an average price for the route of $325 and an overall rating of 8.0, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $362 and an overall rating of 7.9.

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

    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 Falls.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Idaho Falls from San Diego 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 Falls?

    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 to Idaho Falls with an airline and back to San Diego with another airline. Booking your flights between San Diego and IDA can sometimes prove cheaper using this method.

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

    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 to Idaho Falls from San Diego up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from San Diego to Idaho Falls

 
See real verified KAYAK customer reviews for airlines flying from San Diego to Idaho Falls. 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 Falls? 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 11479 reviews
8.1Boarding
7.8Comfort
8.5Crew
7.0Entertainment
7.1Food
Airline reviews

See previous. It was the flight from Honolulu to Kapalua that was cancelled.

8.0 ExcellentEvie, Dec 2025
SAN - HNL
Read more Alaska Airlines reviews

See previous. It was the flight from Honolulu to Kapalua that was cancelled.

I truly appreciated the kindness and attentiveness of the staff and flight attendants. They did their best to be prompt with departure times to San Diego and back to New York! Alaska Airlines ... you are awesome!!

I've never flied them before but liked them. Weather was bad so a little scarey but they did a great job landing.

I recently traveled with my service animal, and before boarding, a gate agent kindly arranged for me to have an empty seat next to me to give my dog more space. However, once on board, a male crew member spoke to me in a rude and loud tone, insisting my dog stay on the floor or my lap—even after I explained what the gate agent had approved. His tone and behavior were unprofessional and made me feel uncomfortable in front of other passengers. I understand and respect airline policies, but I would appreciate if this could be reviewed to ensure better awareness and sensitivity toward passengers traveling with service animals. Thank you for your understanding.

Check in online didn't accept my confirmation number so i could only check in with assistance at the airport and ended up with s creepy middle seat.

It was the most expensive Alaska Airlines ticket I’ve ever purchased. I had a middle seat with no legroom or space compared to any other middle seat I’ve hadThere was a silver box under the seat that took up 70% of my legroom on the most narrow 737 max the crew flat out would not help they would not help with bags they would not help with garbage there was no coffee,It was definitely not one of my better experiences on Alaska.

Sitting on the ground for 2 hours waiting for a gate wasn't fun.

It was a great experience, friendly staff and good snacks

Very mediocre, and disappointing for the price of the ticket

My flight wait is 3 hours delayed due to Unknown reason. We waited a very long time in the tarmac. Our flight 24 was scheduled @ 7, therefore we left my house at 330 to park our car. We were at the gate @ 530, then we were told at 6a that it will be late , we boarded at 930 but did not take off until 1015. Therefore my arranged pick up in JFK was cancelled because of no show. Before all these I got an email offers of changing my flight to a different date which I took a day earlier. I will never again take Alaska Airlines, very Inefficient and Disappointing.

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

Our flight from SFO to MSP was right on time on 11/15/2025. No delays. As we approached MSP at about 8 pm, we circled in the air until 8:40 pm so I don't call that efficient for MSP. I think the captain should announce the delay and why. (as if we all don't know that we are just circling around the area, slowing down, speeding up, slowing down.) Thank you. Marilyn Fischer

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

Having to up charge for a seat assignment is not good. Delta can do better

My husband upgraded our seats and I don't know if it was due to the type of planet was or if they didn't upgrade our seats. We were supposed to be in I believe comfort seats and they were just as tight as any other seat- no leg room and we are very tall people but at least it wasn't extremely cold. My husband did put in a complaint about our seating because he paid extra and if we would have known that the space and the tightness would have been the same, we just would have gotten the emergency row emergency row seats that we normally get. We love Delta but both our flights coming home we're not good. Oh I forgot to mention that on our flight to Hawaii our luggage wheels got broke and we had to purse new luggage on vacation then we never had this problem so we didn't know protocol and reported it after we got home only for them to tell is we only had 24hrs to report the damage. Not sure what was going on with Delta this vacation trip.

Crew was excellent. Comfort seats not as nice as other kinds of planes.

It was a great flight and the stewards and stewardess were all kind and accommodating!! The seats were comfortable and entertainment screen excellent!

Older aircraft, no meal, only food was for purchase. Not impressed United.

Not pleasant trip cross country when the entertainment and WiFi system not working. No entertainment for entirety of route. Staff was rather nonchalant in that they dismissed the problem due to age of plane. It would have been nice to know this up front so I could have come prepared to read or download movies before boarding Coincidentally or not, there was a similar issue with the entertainment system on my previous flight I took on my fist leg of the trip. There are no seat TVs, so you must rely on the app when it works. United can do better. Also, what use it it to pay for boarding group 2 when half of the passengers are in the same line as you?

Premium Plus is a really good idea for longer flights

The flight attendants were great, I joked with one I can’t remember her name, a blond, really sweet. I thought it was run well very professional. This was great i survived Spirit, I know for which I speak.

I was in first class. The outlets at my seat did not work. The plane was shabby and run down. I had prepurchsed a day subscription for internet that was not redeemable. I had to repurchase the internet for my flight and then it didn’t work anyway. Quite disappointed in what was supposed to be the launch of a great vacation.

I understand stuff happens, but plane failures are likely due to lack of maintenance. Additionally, air conditioning wasn't working, no snack/drink service, no WiFi. Fortunately, the crew was communicative and light-hearted. United grabbed another plane and we were able to get to our destination.

Stuck on tarmac for two hours plus a 5.5 hour flight. Rude flight attendant. And no meals, not even for purchase!

I learned that seating towards the end of plane that a line forms for the restroom and people use your chair as a hand railing, bumping your seat consistently. I was seated in the aisle. I think that next time if I am towards the back row I would want to sit in the middle or window seat.

United sent me a mileage plus number last year but that number is invalid so I can’t use it to check into flights or collect mileage. There is human to speak about the problem, only computers who keep asking me if I am using the correct email. It’s so frustrating and I cannot resolve it.

Not a great experience. We paid for the upgrade for premium economy seats and seated ourselves in very comfortable seats. Someone came along with the same seat on their boarding pass. The aircraft had been changed and as a result we were booted out and sent further back to small uncomfortable seats. After complaining we were moved to emergency row seats, which gave us more leg room but the seats don’t recline. For people in our 70’s we found having to sit upright from California to NJ very uncomfortable. Not sure why they chose to move senior citizens instead of the two people that were allowed to take the more comfortable seats. Not happy.

Everything you need to know for your flight from San Diego to Idaho Falls

Information on your arrival and departure airports