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Cheap Flights from San Diego (SANA) to Idaho Falls (IDA)

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      Travellers and cabin class, 1 Adult, Economy

      Compare San Diego to Idaho Falls flight deals

      Find the cheapest month or even day of the year to fly to Idaho Falls

      Book the best Idaho Falls fare with no extra fees

      Flight deals from San Diego to Idaho Falls

      Looking for a cheap last-minute deal or the best return flight from San Diego to Idaho Falls Airport? If you want to travel next month, return fares start from $531. Find the lowest prices on one-way and return tickets right here.
      Idaho Falls.$287 per passenger.Departing Thu, 1 Oct, returning Mon, 5 Oct.Return flight with Frontier Airlines and Allegiant Air.Outbound indirect flight with Frontier Airlines, departs from San Diego International on Thu, 1 Oct, arriving in Idaho Falls.Inbound indirect flight with Allegiant Air, departs from Idaho Falls on Mon, 5 Oct, arriving in San Diego International.Price includes taxes and charges.From $287, select.
      Idaho Falls.$362 per passenger.Departing Sat, 7 Nov, returning Wed, 11 Nov.Return flight with United.Outbound indirect flight with United, departs from San Diego International on Sat, 7 Nov, arriving in Idaho Falls.Inbound indirect flight with United, departs from Idaho Falls on Wed, 11 Nov, arriving in San Diego International.Price includes taxes and charges.From $362, select.
      Idaho Falls.$402 per passenger.Departing Sun, 27 Sep, returning Sat, 3 Oct.Return flight with United.Outbound indirect flight with United, departs from San Diego International on Sun, 27 Sep, arriving in Idaho Falls.Inbound indirect flight with United, departs from Idaho Falls on Sat, 3 Oct, arriving in San Diego International.Price includes taxes and charges.From $402, select.
      Idaho Falls.$404 per passenger.Departing Tue, 15 Dec, returning Sat, 19 Dec.Return flight with Delta.Outbound indirect flight with Delta, departs from San Diego International on Tue, 15 Dec, arriving in Idaho Falls.Inbound indirect flight with Delta, departs from Idaho Falls on Sat, 19 Dec, arriving in San Diego International.Price includes taxes and charges.From $404, select.
      Idaho Falls.$443 per passenger.Departing Mon, 28 Dec, returning Sat, 2 Jan.Return flight with United.Outbound indirect flight with United, departs from San Diego International on Mon, 28 Dec, arriving in Idaho Falls.Inbound indirect flight with United, departs from Idaho Falls on Sat, 2 Jan, arriving in San Diego International.Price includes taxes and charges.From $443, select.
      Idaho Falls.$531 per passenger.Departing Tue, 22 Sep, returning Mon, 28 Sep.Return flight with Delta.Outbound indirect flight with Delta, departs from San Diego International on Tue, 22 Sep, arriving in Idaho Falls.Inbound indirect flight with Delta, departs from Idaho Falls on Mon, 28 Sep, arriving in San Diego International.Price includes taxes and charges.From $531, select.

      Find the cheapest month to fly from San Diego to Idaho Falls

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like San Diego to Idaho Falls flights are currently cheapest in October.
      Aug
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      Sep
      from $531
      Oct
      from $287
      Nov
      from $362
      Dec
      from $404
      Jan
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      Feb
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      Mar
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      Apr
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      May
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      Jul
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      San Diego to Idaho Falls: Alternative routes

      Compare routes from San Diego to Idaho Falls below. You may find an airport to fly into that's cheaper, faster, or easier than Idaho Falls.

      Idaho Falls

      4km from central Idaho Falls
      ClosestCheapest
      from $287
      Search flights

      Pocatello

      79km from central Idaho Falls
      from $326
      Search flights

      San Diego to Idaho Falls: Flight information

      The things to know before you go.
      Cheapest flight found$287
      Cheapest month to flyOctober

      Finding cheap flights from San Diego to Idaho Falls: Frequently asked questions

      The best price we found for a return flight from San Diego to Idaho Falls is $287. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
      Currently, there are no airlines that fly direct from San Diego to Idaho Falls. But we found flights with one stop from $288.
      As of August 2026, there are no flights flying from San Diego to Idaho Falls.
      The cheapest month to fly from San Diego to Idaho Falls is usually October.
      After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from San Diego to Idaho Falls Airport on Thursday, 1 October 2026.
      No airlines currently offer direct flights between San Diego and Idaho Falls Airport. Most routes have one or more stops.
      We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Idaho Falls but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

      We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Idaho Falls is around 40 days in advance, so don’t leave your flight to the last minute.

      The cheapest airline that flies to Idaho Falls is Frontier Airlines .

      Flying from San Diego to Idaho Falls Regional Airport (IDA): What you need to know

      • The timezone in Idaho Falls is UTC-7, which is one hour ahead of San Diego. Idaho Falls Regional Airport is located in Idaho Falls.

      • To ensure you get on your flight from San Diego to IDA, leave plenty of time to navigate the airport and find your gate. Arriving two hours before international departures and one hour before domestic flights is the general rule.

      • If you're going away during a peak month like July, arrive at the terminal even earlier. It's wise to arrive up to four hours before an international flight and two hours ahead of domestic departures. Security lines will be longer during holiday periods like Thanksgiving and spring break.

      Airports in San Diego

      San Diego International Airport (SAN)

      • SAN is about 5 kilometres from central San Diego. If you're ride-sharing, driving or catching a taxi from the centre, it'll take 15 minutes or so to get there, depending on traffic. If you're planning to take public transport, expect the travel time to be around 25 minutes.

      • Want an easy start to your trip? Stay near San Diego International Airport. Whether you've booked an early flight from San Diego to Idaho Falls Regional Airport or prefer not to rush, these hotels are the ideal choice:

      • When it comes to the on-time performance of San Diego International Airport, 74% of flights complete their journey on time.

      • SAN is located at N Harbour Dr.

      McClellan-Palomar Airport (CLD)

      • The distance from San Diego's city centre to CLD is roughly 48 kilometres. Take into account transport options and possible delays when working out the quickest route to the airport.

      • Taking off bright and early? Think about staying at one of these accommodation options near McClellan-Palomar Airport the day before your San Diego to IDA flight:

      • Flights from McClellan-Palomar Airport are known for their punctuality, with 88% of them touching down on schedule.

      About Idaho Falls Regional Airport (IDA)

      Getting from Idaho Falls Regional Airport (IDA) to central Idaho Falls

      • Idaho Falls Regional Airport is around 8 kilometres from the centre of Idaho Falls. It takes around 10 minutes or so to get to the city by car.

      • It typically takes 30 minutes to get there using public transport.

      How to find the cheapest flights from San Diego to Idaho Falls Regional Airport (IDA)

      • The lowest price we've found for a one-way ticket from San Diego to Idaho Falls Regional Airport is $194. For a return flight on this route, the best price is $287. Depending on the availability and when you book, these fares could change.

      • Booking ahead of time is often the key to finding a cheap flight from San Diego to IDA. Flight prices rise as demand increases, so the closer your departure date, the more you'll likely spend on your ticket.

      • Affordable San Diego to Idaho Falls Regional Airport tickets are easier to find when you have flexibility in your schedule. Use the 'Whole month' search function to compare fares throughout the month and then choose the cheapest day.

      • Locking in a cheap plane ticket from San Diego to IDA is a piece of cake with Price Alerts. All you need to do is set up one of these automatic alerts and we'll notify you when prices go down.

      • Filters make it easier to track down a bargain for your flight from San Diego to Idaho Falls Regional Airport. Choose the departure times, airlines and number of stops that look good to you. Then sort the results by 'Cheapest' to zero in on the cheapest fare fast.

      The best time to fly from San Diego to Idaho Falls Regional Airport (IDA)

      • It's time to figure out when to book your flight from San Diego to Idaho Falls Regional Airport (IDA). July is the busiest month to visit Idaho Falls. If a slower pace sounds more appealing, think about going in December.

      • The warmest month in Idaho Falls is July, with temperatures ranging between 9ºC (48ºF) and 35ºC (95ºF). Lock in your San Diego to IDA plane ticket then if that's your ideal forecast.

      • Look for cheap tickets from San Diego to Idaho Falls Regional Airport in January if you'd rather travel during cooler conditions. Temperatures are at their lowest then, ranging between -15ºC (5ºF) and 1ºC (34ºF).

      More about Idaho Falls

      • Start your Idaho Falls trip right by choosing the perfect place to stay. Once you've booked your flight from San Diego to Idaho Falls Regional Airport, browse our range of hotels including:

      • All great journeys should include some sightseeing. Snake River Greenbelt, Idaho Falls River Walk and East Idaho Aquarium are must-visits when exploring Idaho Falls.

      Explore more of the United States

      • Ogden is just one of the many cities in the United States waiting to be discovered once you've seen the sights of Idaho Falls. Around 257 kilometres away to the south, check out popular attractions including Snowbasin Resort, Dinosaur Park and Museum and Ogden Botanical Gardens.

      • Any trip through the United States wouldn't be complete without a stop in Layton. SeaQuest Utah and Layton Utah Temple are just two of the highlights in this well-known destination, which is about 274 kilometres south of Idaho Falls.

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      Plan the rest of your trip from San Diego to Idaho Falls

      Prices shown on this page are estimated lowest prices only. Found in the last 12 days.