In terms of precipitation, rainfall in Idaho Falls ranges from 0.6 - 2.0 inches per month. May is typically the wettest month, when rainfall can reach 2.0 in. July is typically the driest time to visit Idaho Falls when rainfall is around 0.6 in.

If weather is an important factor for your trip to Idaho Falls, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

What are the most popular airlines that fly from Irvine to Idaho Falls?

Before booking your flight from Irvine to Idaho Falls check out the most popular airlines for this route: Delta, Alaska Airlines or United Airlines.

What airport do you fly into for flights to Idaho Falls from Irvine?

If you book a flight to Idaho Falls from Irvine, you will be flying to Fanning Field, which is the city’s only airport. Idaho Falls Fanning Field (IDA) is located 3.8 mi from the center of Idaho Falls. There are 0 flights from Irvine to Fanning Field per day from 4 different airlines.

Can I find deals for flights from Irvine to Idaho Falls that include hotel bookings?

Yes. In addition to deals on Irvine to Idaho Falls flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Irvine to Idaho Falls?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Irvine to Idaho Falls.

Can I find deals for business class flights from Irvine to Idaho Falls?

Yes. Cheapflights offers flight deals from Irvine to Idaho Falls by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Find Cheap Flights from Irvine to Idaho Falls

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Find flight deals from Irvine to Idaho Falls

Most accurate provider	FlightHub 3 stars
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Popular in	December
Cheapest in	September
Average price	$293

Provider with most accurate pricing for Los Angeles-Idaho Falls Fanning Field flight deals.

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Highest demand for flights based on searches. 7% potential increase in price ($32 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).

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Average for round-trip flights in September 2026

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Everything you need to know about your flight from Irvine to Idaho Falls

What is the cheapest time of day to fly from IR9 to IDA?

When flying from Irvine to Idaho Falls, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Idaho Falls

Read reviews from past customers who have flown Alaska Airlines,Delta, andUnited Airlines from Irvine to Idaho Falls. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

7.9

Good

12,963 reviews

Reviews

1 / 20

10.0

Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.

Alaska Airlines

7.9

Good

12,963 reviews

Alaska Airlines

7.9

Good

12,963 reviews

Reviews

1 / 20

10.0

Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.

Delta

7.8

Good

8,594 reviews

Alaska Airlines

7.9

Good

12,963 reviews

Reviews

1 / 20

10.0

Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.

United Airlines

7.4

Good

10,233 reviews

Alaska Airlines

7.9

Good

12,963 reviews

Reviews

1 / 20

10.0

Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.

Related info for your journey

What airport do you fly into for flights to Idaho Falls from Irvine?
If you book a flight to Idaho Falls from Irvine, you will be flying to Fanning Field, which is the city’s only airport. Idaho Falls Fanning Field (IDA) is located 3.8 mi from the center of Idaho Falls. There are 0 flights from Irvine to Fanning Field per day from 4 different airlines.
Can I find deals for flights from Irvine to Idaho Falls that include hotel bookings?
Yes. In addition to deals on Irvine to Idaho Falls flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Irvine to Idaho Falls?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Irvine to Idaho Falls.
Can I find deals for business class flights from Irvine to Idaho Falls?
Yes. Cheapflights offers flight deals from Irvine to Idaho Falls by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Top 4 airlines flying from Irvine to Idaho Falls

Airline	Cheapest	Average	Flexibility	On-time
Allegiant Air	Cheapest$132	Average$244	FlexibilityNo cancel fee	On-time88%
Delta	Cheapest$133	Average$440	FlexibilityNo cancel fee	On-timeN/A
Alaska Airlines	Cheapest$228	Average$401	FlexibilityNo cancel fee	On-time75%
United Airlines	Cheapest$387	Average$570	FlexibilityNo cancel fee	On-time69%

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Find cheap flights from Irvine to Idaho Falls with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Irvine to Idaho Falls

Most accurate provider

Most trusted provider

Popular in

Cheapest in

Average price

Cheapflights Insights

What is the cheapest time of day to fly from IR9 to IDA?

When flying from Irvine to Idaho Falls, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Idaho Falls

Read reviews from past customers who have flown Alaska Airlines,Delta, andUnited Airlines from Irvine to Idaho Falls. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What airport do you fly into for flights to Idaho Falls from Irvine?

Can I find deals for flights from Irvine to Idaho Falls that include hotel bookings?

How can I find direct flights from Irvine to Idaho Falls?

Can I find deals for business class flights from Irvine to Idaho Falls?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Irvine to Idaho Falls

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Idaho Falls by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Irvine to Idaho Falls by cabin class

Find flights from Irvine to Idaho Falls, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Other flights to Idaho Falls

Explore flights to Idaho Falls departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 24, 2026.

Irvine and Idaho Falls flights

Browse other Irvine and Idaho Falls flight options. Last updated on September 24, 2026.

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Irvine to Idaho Falls flights

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Cheap flights from Irvine, CA to Idaho Falls (IDA)

Find cheap flights from Irvine to Idaho Falls with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Irvine to Idaho Falls

Most accurate provider

Most trusted provider

Popular in

Cheapest in

Average price

Cheapflights Insights

What is the cheapest time of day to fly from IR9 to IDA?

When flying from Irvine to Idaho Falls, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Idaho Falls

Read reviews from past customers who have flown Alaska Airlines,Delta, andUnited Airlines from Irvine to Idaho Falls. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What airport do you fly into for flights to Idaho Falls from Irvine?

Can I find deals for flights from Irvine to Idaho Falls that include hotel bookings?

How can I find direct flights from Irvine to Idaho Falls?

Can I find deals for business class flights from Irvine to Idaho Falls?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Irvine to Idaho Falls

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Idaho Falls by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Irvine to Idaho Falls by cabin class

Find flights from Irvine to Idaho Falls, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Other flights to Idaho Falls

Explore flights to Idaho Falls departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 24, 2026.

Irvine and Idaho Falls flights

Browse other Irvine and Idaho Falls flight options. Last updated on September 24, 2026.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2026

Irvine to Idaho Falls flights

Consider these flights traveling from Irvine to Idaho Falls.

Top 4 airlines flying from Irvine to Idaho Falls

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Book with Flexibility

Travel Smart