Flights from San Diego to Idaho

Flight deals from San Diego to Idaho

Looking for cheap tickets from San Diego to Idaho, or a last-minute trip? Find the lowest prices on one-way and return tickets right here.

Boise.$117 per passenger.Departing Tue, 19 May.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from San Diego International on Tue, 19 May, arriving in Boise.Price includes taxes and charges.From $117, select.

Hailey.$219 per passenger.Departing Fri, 6 Feb.One-way flight with United.Outbound indirect flight with United, departs from San Diego International on Fri, 6 Feb, arriving in Hailey.Price includes taxes and charges.From $219, select.

Idaho Falls.$283 per passenger.Departing Fri, 20 Mar.One-way flight with Delta.Outbound indirect flight with Delta, departs from San Diego International on Fri, 20 Mar, arriving in Idaho Falls.Price includes taxes and charges.From $283, select.

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Flying from San Diego to Idaho

Arm yourself with these facts on the fly.

Cheapest flight found	$117
Cheapest month to fly	May
Average flight time	2 hrs, 23 mins
Cheapest airport to fly from	San Diego International
Most popular airline	Alaska Airlines

How to find cheap flights from San Diego to Idaho

We've compared the best online travel agents and flight providers on the internet to find the cheapest plane tickets from San Diego to Idaho. Other savvy travellers recently found return flights from $239 and one-way tickets from $117 one-way. Ready to join them? Here are a few tips to help you do it the smart way.

Fly from San Diego International into Boise

At the moment, the lowest priced flight tickets to Idaho are from San Diego International Airport to Boise Airport.

Fly in February

We crunched the flight calendar and found the cheapest time to fly from San Diego to Idaho is currently February.

Flex your dates for the best rates

If you’re flexible on your departure dates, you can use Skyscanner's whole month tool to find the cheapest day of the year to fly from San Diego to anywhere you choose in Idaho.

Watch as fares rise and fall

With Price Alerts, we'll let you know when flight prices from San Diego to Idaho go up or down so you can book when the time is just right.

Relax – these are fee-free flight tickets

With us, there are no added fees – the Idaho to Idaho flight price you see when you search with us is what you pay to the provider.

Frequently asked questions

What's the average San Diego to Idaho flight price?

We looked at all of the upcoming return flights from San Diego to Idaho we could find over the next 12 months. It looks like $239 is the best price. This is good, compared to the average Idaho ticket price of $560.

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

The cheapest month to fly from San Diego to Idaho Falls Airport is usually May. The cheapest month to fly from San Diego to Twin Falls Airport is usually February. The cheapest month to fly from San Diego to Hailey Airport is usually February. And the cheapest month to fly from San Diego to Boise Airport is usually February.

Which upcoming date is cheapest to fly from San Diego to Idaho on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from San Diego to Idaho on Thursday, 5 February 2026.

Are there any direct flights from San Diego to Idaho?

San Diego International Airport offers direct flights to Idaho.

If I'm flying from San Diego, where in Idaho is cheapest to fly into?

If you're flying from San Diego, the cheapest city in Idaho to fly into is Boise. The cheapest airport serving Boise at the moment is Boise.

How long is the flight from San Diego to Idaho?

The average flight time between San Diego and Idaho is 2 hours and 23 minutes.