What are the cheapest airlines flying from Indianapolis to Boise round-trip?

Flying on Spirit Airlines is currently your cheapest option to Boise, with prices starting at $235. Additional round-trip tickets that might be worth considering are offered by Delta and Alaska Airlines, with the lowest prices starting at $292 and $324, respectively. Spirit Airlines is 46% cheaper than the average price of flights available within the next 90 days to this destination.

What are the cheapest airlines to fly from Indianapolis to Boise one-way?

One-way options have recently been found by users for as low as $99 on Spirit Airlines. Other airlines that offer cheap prices include Frontier from $137 and Alaska Airlines from $162 one-way.

What is the cheapest day to fly from Indianapolis to Boise?

Travelers seeking maximum savings on their Indianapolis to Boise flight should consider departing on Friday at noon when fares are most often at their lowest. Thursday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Boise ranges from 0.2 - 1.6 inches per month. December is typically the wettest month, when rainfall can reach 1.6 in. August is typically the driest time to visit Boise when rainfall is around 0.2 in.

If weather is an important factor for your trip to Boise, 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 75.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 30.2 F).

What are the most popular airlines that fly from Indianapolis to Boise?

Before booking your flight from Indianapolis to Boise check out the most popular airlines for this route: American Airlines, Delta or United Airlines.

What is the cheapest day to fly round-trip from Indianapolis to Boise?

Flying to your destination on a Saturday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to Boise. Check prices with Cheapflights to find a great deal for your trip.

How far in advance should I book a flight from Indianapolis to Boise?

Travelers have found it’s best to book a flight 49 days in advance to save up to 128% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 49 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Indianapolis to Boise 1-2 weeks in advance for as low as $372, or $845 for flights within the next 24 hours.

What is the cheapest month to fly from Indianapolis to Boise?

Due to multiple factors, expect to potentially pay more when booking in January. For low rates, February can be a great choice for travel to Boise. Flights to Boise from Indianapolis in February are about $435 on average during February, but can be found for as low as $327.

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

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

How can I find direct flights from Indianapolis to Boise?

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

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

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

$99+ Flights from Indianapolis to Boise

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Cheapflights Tip: The best prices from Indianapolis to Boise Air Term. Gowen Fld are usually found in February or October, booked 73 days in advance, depart on a Saturday or Friday and return on a Tuesday

Cheap flight deals from Indianapolis to Boise

Round-trip from	$235 (FlightHub)
One-way from	$99 (Booking.com)
Popular in	January
Cheapest in	February
Average price	$446

From Indianapolis to Boise Air Term. Gowen Fld

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One-way flight from Indianapolis to Boise Air Term. Gowen Fld

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Highest demand for flights based on searches. 8% potential increase in price ($39 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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Find flight deals from Indianapolis to Boise

Cheapest flights from Indianapolis to Boise
Explore the most affordable flight options available from Indianapolis to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 29, 2025.

lun. 9/811:48 amIND - BOI

1 stop10h 33mSpirit Airlines

vie. 9/129:16 pmBOI - IND

1 stop16h 27mSpirit Airlines

Deal found 7/27

$235

mar. 9/95:13 pmIND - BOI

2 stops19h 51mDelta

sáb. 9/139:00 amBOI - IND

2 stops12h 32mDelta

Deal found 7/29

$292

mar. 9/96:30 amIND - BOI

1 stop9h 18mAlaska Airlines

mié. 9/105:45 pmBOI - IND

1 stop9h 25mAlaska Airlines

Deal found 7/27

$324

jue. 9/186:30 pmIND - BOI

1 stop7h 05mAmerican Airlines

lun. 9/221:57 pmBOI - IND

1 stop6h 27mAmerican Airlines

Deal found 7/28

$337

vie. 8/296:55 pmIND - BOI

1 stop7h 04mHawaiian Airlines

dom. 8/315:45 pmBOI - IND

1 stop9h 25mHawaiian Airlines

Deal found 7/27

$386

dom. 9/76:00 amIND - BOI

2 stops9h 35mUnited Airlines

mié. 9/107:00 amBOI - IND

1 stop5h 36mUnited Airlines

Deal found 7/28

$393

Best flights from Indianapolis to Boise
Discover carefully curated flight deals from Indianapolis to Boise that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated julio 29, 2025.

lun. 9/811:48 amIND - BOI

1 stop10h 33mSpirit Airlines

vie. 9/129:16 pmBOI - IND

1 stop16h 27mSpirit Airlines

Deal found 7/27

$235

mar. 9/95:13 pmIND - BOI

2 stops19h 51mDelta

sáb. 9/139:00 amBOI - IND

2 stops12h 32mDelta

Deal found 7/29

$292

mar. 9/96:30 amIND - BOI

1 stop9h 18mAlaska Airlines

mié. 9/105:45 pmBOI - IND

1 stop9h 25mAlaska Airlines

Deal found 7/27

$324

jue. 9/186:30 pmIND - BOI

1 stop7h 05mAmerican Airlines

lun. 9/221:57 pmBOI - IND

1 stop6h 27mAmerican Airlines

Deal found 7/28

$337

vie. 8/296:55 pmIND - BOI

1 stop7h 04mHawaiian Airlines

dom. 8/315:45 pmBOI - IND

1 stop9h 25mHawaiian Airlines

Deal found 7/27

$386

dom. 9/76:00 amIND - BOI

2 stops9h 35mUnited Airlines

mié. 9/107:00 amBOI - IND

1 stop5h 36mUnited Airlines

Deal found 7/28

$393

Last-minute flights from Indianapolis to Boise
Discover last-minute flight deals from Indianapolis to Boise. Data last updated julio 29, 2025 and is based on user searches.

vie. 8/87:00 amIND - BOI

1 stop13h 52mMultiple Airlines

lun. 8/117:48 pmBOI - IND

2 stops17h 36mMultiple Airlines

Deal found 7/28

$539

vie. 8/86:48 pmIND - BOI

1 stop7h 23mAlaska Airlines

lun. 8/114:50 pmBOI - IND

1 stop10h 10mAlaska Airlines

Deal found 7/28

$626

sáb. 8/97:10 amIND - BOI

2 stops9h 02mDelta

sáb. 8/231:35 pmBOI - IND

1 stop8h 33mDelta

Deal found 7/26

$426

dom. 8/105:05 pmIND - BOI

3 stops27h 47mSpirit Airlines

vie. 8/156:06 pmBOI - IND

2 stops14h 39mSpirit Airlines

Deal found 7/28

$451

dom. 8/109:59 pmIND - BOI

2 stops22h 53mMultiple Airlines

vie. 8/156:06 pmBOI - IND

2 stops14h 39mMultiple Airlines

Deal found 7/28

$454

mar. 8/126:05 amIND - BOI

1 stop9h 53mUnited Airlines

sáb. 8/162:32 pmBOI - IND

1 stop5h 38mUnited Airlines

Deal found 7/28

$517

lun. 8/186:30 amIND - BOI

1 stop30h 15mAlaska Airlines

lun. 8/257:17 pmBOI - IND

1 stop7h 53mAlaska Airlines

Deal found 7/28

$420

vie. 8/296:38 pmIND - BOI

1 stop6h 53mAmerican Airlines

dom. 8/312:30 pmBOI - IND

1 stop6h 30mAmerican Airlines

Deal found 7/28

$382

vie. 8/296:55 pmIND - BOI

1 stop7h 04mHawaiian Airlines

dom. 8/315:45 pmBOI - IND

1 stop9h 25mHawaiian Airlines

Deal found 7/27

$386

vie. 8/295:15 pmIND - BOI

2 stops9h 10mSouthwest

dom. 8/3110:00 amBOI - IND

2 stops10h 00mSouthwest

Deal found 7/27

$468

One-way flights from Indianapolis to Boise
Search for one-way flight options from Indianapolis to Boise. Find affordable one-way fares based on user searches. Data last updated julio 29, 2025.

lun. 9/2911:48 amIND - BOI

1 stop10h 33mSpirit Airlines

Deal found 7/28

$99

lun. 8/117:00 amIND - BOI

1 stop13h 52mMultiple Airlines

Deal found 7/26

$136

jue. 10/28:54 pmIND - BOI

1 stop16h 43mFrontier

Deal found 7/28

$137

mar. 9/96:30 amIND - BOI

1 stop9h 18mAlaska Airlines

Deal found 7/27

$162

mar. 9/97:22 amIND - BOI

2 stops12h 54mDelta

Deal found 7/27

$166

lun. 9/85:15 pmIND - BOI

2 stops9h 10mSouthwest

Deal found 7/27

$224

lun. 1/58:23 amIND - BOI

1 stop10h 30mAmerican Airlines

Deal found 7/27

$230

mar. 8/511:45 amIND - BOI

2 stops8h 22mUnited Airlines

Deal found 7/28

$369

Fly from

Fly to

Route

Depart

Return

Price

IndianapolisBoise

IND - BOI

INDBOI

Indianapolis

lun. 9/8

11:48 am-8:21 pm

1 stop10h 33m

Boise Air Term. Gowen Fld

vie. 9/12

9:16 pm-3:43 pm

1 stop16h 27m

$235

IndianapolisBoise

IND - BOI

INDBOI

Indianapolis

mar. 9/9

5:13 pm-11:04 am

2 stops19h 51m

Boise Air Term. Gowen Fld

sáb. 9/13

9:00 am-11:32 pm

2 stops12h 32m

$292

IndianapolisBoise

IND - BOI

INDBOI

Indianapolis

mar. 9/9

6:30 am-1:48 pm

1 stop9h 18m

Boise Air Term. Gowen Fld

mié. 9/10

5:45 pm-5:10 am

1 stop9h 25m

$324

IndianapolisBoise

IND - BOI

INDBOI

Indianapolis

jue. 9/18

6:30 pm-11:35 pm

1 stop7h 05m

Boise Air Term. Gowen Fld

lun. 9/22

1:57 pm-10:24 pm

1 stop6h 27m

$337

IndianapolisBoise

IND - BOI

INDBOI

Indianapolis

vie. 8/29

6:55 pm-11:59 pm

1 stop7h 04m

Boise Air Term. Gowen Fld

dom. 8/31

5:45 pm-5:10 am

1 stop9h 25m

$386

IndianapolisBoise

IND - BOI

INDBOI

Indianapolis

dom. 9/7

6:00 am-1:35 pm

2 stops9h 35m

Boise Air Term. Gowen Fld

mié. 9/10

7:00 am-2:36 pm

1 stop5h 36m

$393

IndianapolisBoise

IND - BOI

INDBOI

Indianapolis

lun. 9/29

11:48 am-8:21 pm

1 stop10h 33m

$99

IndianapolisBoise

IND - BOI

INDBOI

Indianapolis

lun. 8/11

7:00 am-6:52 pm

1 stop13h 52m

$136

IndianapolisBoise

IND - BOI

INDBOI

Indianapolis

jue. 10/2

8:54 pm-11:37 am

1 stop16h 43m

$137

IndianapolisBoise

IND - BOI

INDBOI

Indianapolis

mar. 9/9

6:30 am-1:48 pm

1 stop9h 18m

$162

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 14 results

Best time to book a flight from Indianapolis to Boise

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

How far ahead should I book a flight from Indianapolis to Boise?

To ensure you get the cheapest price possible for a flight from Indianapolis to Boise, you should look to book at least 71 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Indianapolis to Boise?

Currently, October is the cheapest month in which you can book a flight from Indianapolis to Boise (average of $314). Flying from Indianapolis to Boise 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.

What is the cheapest time of day to fly from IND to BOI?

It’s typically best to fly out from Indianapolis to Boise at noon. Doing so could potentially save you 67% on the flight price compared to flying in the evening, which is usually more expensive.

Reviews of airlines servicing Boise

Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and Delta from Indianapolis to Boise to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Alaska Airlines

8.0

Very good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Southwest

8.0

Very good

4,238 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Delta

8.0

Very good

7,977 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Hawaiian Airlines

7.8

Good

2,605 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

United Airlines

7.4

Good

8,899 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

What are the cheapest airlines flying from Indianapolis to Boise round-trip?
Flying on Spirit Airlines is currently your cheapest option to Boise, with prices starting at $235. Additional round-trip tickets that might be worth considering are offered by Delta and Alaska Airlines, with the lowest prices starting at $292 and $324, respectively. Spirit Airlines is 46% cheaper than the average price of flights available within the next 90 days to this destination.
What are the cheapest airlines to fly from Indianapolis to Boise one-way?
One-way options have recently been found by users for as low as $99 on Spirit Airlines. Other airlines that offer cheap prices include Frontier from $137 and Alaska Airlines from $162 one-way.
Can I find deals for flights from Indianapolis to Boise that include hotel bookings?
Yes. In addition to deals on Indianapolis to Boise flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Indianapolis to Boise?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Indianapolis to Boise.
Can I find deals for business class flights from Indianapolis to Boise?
Yes. Cheapflights offers flight deals from Indianapolis to Boise 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 Indianapolis to Boise?
Currently, October is the cheapest month in which you can book a flight from Indianapolis to Boise (average of $314). Flying from Indianapolis to Boise 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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Caldwell

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Other flights to Boise

Top 4 airlines flying from Indianapolis to Boise

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$306	Average$417	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$340	Average$494	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$346	Average$429	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$346	Average$446	FlexibilityNo cancel fee	On-time63%

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$99+ Cheap flights from Indianapolis to Boise (IND - BOI)

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 9/29. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Indianapolis to Boise with Cheapflights

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Cheapflights Tip: The best prices from Indianapolis to Boise Air Term. Gowen Fld are usually found in February or October, booked 73 days in advance, depart on a Saturday or Friday and return on a Tuesday

Cheap flight deals from Indianapolis to Boise

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Find flight deals from Indianapolis to Boise

Cheapest flights from Indianapolis to BoiseExplore the most affordable flight options available from Indianapolis to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 29, 2025.

Explore the most affordable flight options available from Indianapolis to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 29, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Indianapolis to Boise that are best for you.

Best time to book a flight from Indianapolis to Boise

Have a flexible travel schedule? Discover the best time to fly to Boise from Indianapolis with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Indianapolis to Boise

How far ahead should I book a flight from Indianapolis to Boise?

Use this chart to determine the optimal time to book a round-trip flight from Indianapolis to Boise. Price data was last updated on July 25, 2025.

What is the cheapest month to book a flight from Indianapolis to Boise?

What is the cheapest time of day to fly from IND to BOI?

Find hourly flight availability from Indianapolis to Boise. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated julio 29, 2025.

Reviews of airlines servicing Boise

Get insights into the airlines that provide service to Boise. 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 Boise. Reviews last updated julio 29, 2025.

Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and Delta from Indianapolis to Boise to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

What are the cheapest airlines flying from Indianapolis to Boise round-trip?

What are the cheapest airlines to fly from Indianapolis to Boise one-way?

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

How can I find direct flights from Indianapolis to Boise?

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

What is the cheapest month to book a flight from Indianapolis to Boise?

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Top 4 airlines flying from Indianapolis to Boise

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Cheapest flights from Indianapolis to Boise
Explore the most affordable flight options available from Indianapolis to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 29, 2025.