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$592+ Cheap flights from Boise to Springfield, IL (BOI - SPI)

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 3/9. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SPI
Mar 26 — Apr 21
Thu 3/26
Thu 4/2
1 adult, Economy
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Cheap flight deals from Boise to Springfield

Cheapest flights from Boise to Springfield
Explore the most affordable flight options available from Boise to Springfield. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 24, 2026.

This American Airlines deal was found by Cheapflights users on 2/22. 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.
Mon 3/91:39 pm
BOI
-
SPI
2 stops8h 53m
American Airlines
Fri 3/135:00 am
SPI
-
BOI
1 stop9h 00m
American Airlines
Deal found 2/22$592
This American Airlines deal was found by Cheapflights users on 2/23. 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 6/133:10 pm
BOI
-
SPI
1 stop7h 26m
American Airlines
Mon 6/222:50 pm
SPI
-
BOI
1 stop24h 30m
American Airlines
Deal found 2/23$664
This American Airlines deal was found by Cheapflights users on 2/23. 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 3/101:31 pm
BOI
-
SPI
1 stop9h 01m
American Airlines
Sat 3/145:00 am
SPI
-
BOI
2 stops18h 23m
American Airlines
Deal found 2/23$781

Find flight deals from Boise to Springfield

Discover tips and strategies to find the most affordable flight options for your journey from Boise (BOI) to Springfield (SPI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 24, 2026.

Round-trip from

$592
(American Airlines)
From Boise Air Term. Gowen Fld to Springfield Capital
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boise to Springfield 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 February 24, 2026.
Use the filters below to find and compare flights from Boise to Springfield that are best for you.

Fly from

Boise

Fly to

Springfield

Route

Depart

Return

Price

BoiseSpringfield

BOI - SPI

BOISPI

Boise Air Term. Gowen Fld

Mon 3/9

1:39 pm-11:32 pm

2 stops8h 53m

Springfield Capital

Fri 3/13

5:00 am-1:00 pm

1 stop9h 00m

$592

BoiseSpringfield

BOI - SPI

BOISPI

Boise Air Term. Gowen Fld

Tue 3/10

1:31 pm-7:45 pm

1 stop5h 14m

Springfield Capital

Sat 3/14

5:00 am-1:00 pm

1 stop9h 00m

$820

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/22

Best time to book a flight from Boise to Springfield

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

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

Currently, April is the cheapest month in which you can book a flight from Boise to Springfield, Illinois (average of $113). Flying from Boise to Springfield, Illinois in December is currently the most expensive (average of $367). 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 Boise to Springfield. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    Airlines like American Airlines fly from Boise to Springfield, Illinois in about 8h 53m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 1386 mi.

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

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

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

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

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

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

    Currently, April is the cheapest month in which you can book a flight from Boise to Springfield, Illinois (average of $113). Flying from Boise to Springfield, Illinois in December is currently the most expensive (average of $367). 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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