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$547+ Cheap flights from Springfield, IL (SPI) to Idaho

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
SPI — BOI
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Find flight deals from Springfield to Idaho

Best flights from Springfield to Idaho
Discover carefully curated flight deals from Springfield to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2025.

This American Airlines deal was found by Cheapflights users on 10/28. 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.
Tue 3/106:00 amSPI - GEG
1 stop8h 59mAmerican Airlines
Wed 3/111:40 pmGEG - SPI
1 stop7h 24mAmerican Airlines
Deal found 10/28$547
This American Airlines deal was found by Cheapflights users on 10/28. 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.
Tue 3/106:00 amSPI - JAC
1 stop7h 03mAmerican Airlines
Wed 3/112:01 pmJAC - SPI
2 stops8h 03mAmerican Airlines
Deal found 10/28$556
This American Airlines deal was found by Cheapflights users on 10/29. 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.
Tue 4/76:00 amSPI - IDA
2 stops16h 56mAmerican Airlines
Wed 4/88:24 amIDA - SPI
2 stops8h 10mAmerican Airlines
Deal found 10/29$949

Cheap flight deals from Springfield to Idaho

Keep the following information in mind while searching for Springfield to Idaho flight deals. Data was last updated October 30, 2025.

Round-trip from

$547
(American Airlines)
From Springfield Capital to Idaho
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Springfield 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 October 30, 2025.
Use the filters below to find and compare flights from Springfield to Idaho that are best for you.

Fly from

Springfield

Fly to

Idaho

Route

Depart

Return

Price

SpringfieldSpokane

SPI - GEG

SPIGEG

Springfield Capital

Tue 3/10

6:00 am-12:59 pm

1 stop8h 59m

Spokane

Wed 3/11

1:40 pm-11:04 pm

1 stop7h 24m

$547

SpringfieldJackson

SPI - JAC

SPIJAC

Springfield Capital

Tue 3/10

6:00 am-12:03 pm

1 stop7h 03m

Jackson Hole

Wed 3/11

2:01 pm-11:04 pm

2 stops8h 03m

$556

SpringfieldIdaho Falls

SPI - IDA

SPIIDA

Springfield Capital

Tue 4/7

6:00 am-9:56 pm

2 stops16h 56m

Idaho Falls Fanning Field

Wed 4/8

8:24 am-5:34 pm

2 stops8h 10m

$949

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Best time to book a flight from Springfield to Idaho

Have a flexible travel schedule? Discover the best time to fly to Idaho from Springfield 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 Springfield to Idaho

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

Currently, September is the cheapest month in which you can book a flight from Springfield, Illinois to Idaho (average of $186). Flying from Springfield, Illinois to Idaho in January is currently the most expensive (average of $300). 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.

Related info for your journey

Find useful and relevant information for your journey from Springfield 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 Springfield to Idaho?

    Springfield Capital (SPI) is the airport you will fly out of if you book a flight from Springfield to Idaho. It is only a 3.4 mi journey to Capital (SPI) from Springfield’s city center.

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

    American Airlines can get you from Springfield, Illinois to Idaho in just under 8h 59m. Your travel time can differ by up to . Springfield, Illinois and Idaho are separated by a distance of 1480 mi.

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

    The most popular flight routes from Springfield, Illinois to Idaho are Springfield Capital - Idaho Falls Fanning Field, Springfield Capital - Jackson Hole and Springfield Capital - Spokane.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Springfield 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 Springfield, Illinois to Idaho?

    Currently, September is the cheapest month in which you can book a flight from Springfield, Illinois to Idaho (average of $186). Flying from Springfield, Illinois to Idaho in January is currently the most expensive (average of $300). 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 Springfield to Idaho

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