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$208+ Cheap flights from Peoria, IL (PIA) to Idaho

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/28. Fares are subject to change and may not be available on all flights or dates of travel.
PIA — BOI
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Peoria to Idaho

Keep the following information in mind while searching for Peoria to Idaho flight deals. Data was last updated September 11, 2025.

Round-trip from

$349
(United Airlines)

One-way from

$208
(Kiwi.com)

Popular in

February

Cheapest in

April

Average price

$627
From Greater Peoria to Idaho
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One-way flight from Greater Peoria to Idaho
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Highest demand for flights based on searches. 12% potential increase in price ($86 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($26 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Peoria to Idaho

Cheapest flights from Peoria to Idaho
Explore the most affordable flight options available from Peoria to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/18:39 amPIA - BOI
1 stop5h 54mUnited Airlines
Sat 10/48:20 amBOI - PIA
1 stop5h 59mUnited Airlines
Deal found 9/9$349
This American Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/276:00 amPIA - GEG
1 stop8h 44mAmerican Airlines
Tue 9/301:30 pmGEG - PIA
1 stop6h 06mAmerican Airlines
Deal found 9/8$349
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2710:48 amPIA - IDA
2 stops11h 04mUnited Airlines
Wed 10/15:00 amIDA - PIA
2 stops10h 43mUnited Airlines
Deal found 9/10$364
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/310:48 amPIA - GEG
2 stops11h 36mUnited Airlines
Sat 10/45:05 amGEG - PIA
2 stops8h 14mUnited Airlines
Deal found 9/9$384
This American Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/266:00 amPIA - GEG
1 stop8h 44mAmerican Airlines
Sat 9/271:30 pmGEG - PIA
1 stop6h 06mAmerican Airlines
Deal found 9/9$399
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/26:00 amPIA - BOI
1 stop6h 39mUnited Airlines
Sun 10/58:20 amBOI - PIA
1 stop7h 23mUnited Airlines
Deal found 9/9$434
This United Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/86:00 amPIA - JAC
1 stop6h 20mUnited Airlines
Wed 10/152:30 pmJAC - PIA
2 stops6h 45mUnited Airlines
Deal found 9/8$444
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/246:55 amPIA - BOI
1 stop5h 36mUnited Airlines
Sun 9/287:05 pmBOI - PIA
2 stops14h 08mUnited Airlines
Deal found 9/9$464
This American Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/266:25 pmPIA - BOI
1 stop19h 02mAmerican Airlines
Tue 9/301:07 pmBOI - PIA
1 stop20h 01mAmerican Airlines
Deal found 9/11$467
This United Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/276:55 amPIA - GEG
1 stop6h 47mUnited Airlines
Tue 9/3012:35 pmGEG - PIA
2 stops26h 08mUnited Airlines
Deal found 9/8$482
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/410:48 amPIA - GEG
2 stops11h 36mUnited Airlines
Sun 10/55:05 amGEG - PIA
2 stops9h 38mUnited Airlines
Deal found 9/9$490
This American Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/36:00 amPIA - GEG
1 stop8h 44mAmerican Airlines
Sat 10/412:35 pmGEG - PIA
1 stop8h 48mAmerican Airlines
Deal found 9/9$493

Cheapflights Fare Finder

 
Customize your flight search to find flights from Peoria to Idaho that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from Peoria to Idaho that are best for you.

Fly from

Peoria

Fly to

Idaho

Route

Depart

Return

Price

PeoriaBoise

PIA - BOI

PIABOI

Greater Peoria

Wed 10/1

8:39 am-1:33 pm

1 stop5h 54m

Boise Air Term. Gowen Fld

Sat 10/4

8:20 am-3:19 pm

1 stop5h 59m

$349

PeoriaBoise

PIA - BOI

PIABOI

Greater Peoria

Sat 2/21

10:55 am-10:22 pm

2 stops12h 27m

Boise Air Term. Gowen Fld

Tue 2/24

8:05 am-9:31 pm

2 stops12h 26m

$359

PeoriaIdaho Falls

PIA - IDA

PIAIDA

Greater Peoria

Sat 9/27

10:48 am-8:52 pm

2 stops11h 04m

Idaho Falls Fanning Field

Wed 10/1

5:00 am-4:43 pm

2 stops10h 43m

$364

PeoriaSpokane

PIA - GEG

PIAGEG

Greater Peoria

Fri 10/3

10:48 am-8:24 pm

2 stops11h 36m

Spokane

Sat 10/4

5:05 am-3:19 pm

2 stops8h 14m

$384

PeoriaSpokane

PIA - GEG

PIAGEG

Greater Peoria

Fri 9/26

6:00 am-12:44 pm

1 stop8h 44m

Spokane

Sat 9/27

1:30 pm-9:36 pm

1 stop6h 06m

$399

PeoriaBoise

PIA - BOI

PIABOI

Greater Peoria

Thu 10/2

6:00 am-11:39 am

1 stop6h 39m

Boise Air Term. Gowen Fld

Sun 10/5

8:20 am-4:43 pm

1 stop7h 23m

$434

PeoriaJackson

PIA - JAC

PIAJAC

Greater Peoria

Wed 10/8

6:00 am-11:20 am

1 stop6h 20m

Jackson Hole

Wed 10/15

2:30 pm-10:15 pm

2 stops6h 45m

$444

PeoriaSpokane

PIA - GEG

PIAGEG

Greater Peoria

Sat 9/27

6:55 am-11:42 am

1 stop6h 47m

Spokane

Tue 9/30

12:35 pm-4:43 pm

2 stops26h 08m

$482

PeoriaSpokane

PIA - GEG

PIAGEG

Greater Peoria

Sat 10/4

10:48 am-8:24 pm

2 stops11h 36m

Spokane

Sun 10/5

5:05 am-4:43 pm

2 stops9h 38m

$490

PeoriaSpokane

PIA - GEG

PIAGEG

Greater Peoria

Fri 9/26

6:00 am-11:42 am

1 stop7h 42m

Spokane

Sat 9/27

5:05 am-9:27 pm

2 stops14h 22m

$497

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 32 results
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Best time to book a flight from Peoria to Idaho

Have a flexible travel schedule? Discover the best time to fly to Idaho from Peoria with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Peoria to Idaho

What is the cheapest month to book a flight from Peoria, Illinois to Idaho?

Currently, October is the cheapest month in which you can book a flight from Peoria, Illinois to Idaho (average of $314). Flying from Peoria, Illinois to Idaho in June is currently the most expensive (average of $398). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Idaho

Get insights into the airlines that provide service to Idaho. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Idaho. Reviews last updated September 11, 2025.
See what other customers who have flown with United Airlines and American Airlines from Peoria to Idaho have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,937 reviews

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,937 reviews
United Airlines
7.4
Good
8,937 reviews

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,937 reviews

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

Find useful and relevant information for your journey from Peoria to Idaho. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Peoria to Idaho?

    If you book a flight to Idaho from Peoria, you will be flying from Greater Peoria, which is the city’s only airport. Greater Peoria (PIA) is located 6.0 mi from the center of Peoria.

  • How long is the flight from Peoria, Illinois to Idaho?

    United Airlines and American Airlines can get you from Peoria, Illinois to Idaho in just under 5h 54m. Your travel time can differ by up to 2h 50m. The distance between Peoria, Illinois and Idaho is about 1367 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Peoria, Illinois to Idaho one-way?

    For one-way options, check prices for American Airlines. According to our data, you can fly for as low as $266. Users have also found prices from $329 and $357 on United Airlines and Allegiant Air, respectively.

  • What are the most popular routes from Peoria, Illinois to Idaho?

    While some choose either Greater Peoria - Boise Air Term. Gowen Fld or Greater Peoria - Idaho Falls Fanning Field, Greater Peoria - Spokane is the most popular route from Peoria, Illinois to Idaho.

  • Can I find deals for flights from Peoria to Idaho that include hotel bookings?

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

  • How can I find direct flights from Peoria to Idaho?

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

  • Can I find deals for business class flights from Peoria to Idaho?

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

  • What is the cheapest month to book a flight from Peoria, Illinois to Idaho?

    Currently, October is the cheapest month in which you can book a flight from Peoria, Illinois to Idaho (average of $314). Flying from Peoria, Illinois to Idaho in June is currently the most expensive (average of $398). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Peoria to Idaho

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Peoria to Idaho

Discover the top 2 airlines that operate flights from Peoria to Idaho. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$268Average$527FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$320Average$625FlexibilityNo cancel feeOn-time69%

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