$139 Cheap Flights from Des Moines (DSM) to Boise (BOI)

View $139 flight on Tue, Sep 9, 2025Opens in a new window

Popular airlines from Des Moines International Airport (DSM) to Boise Airport (BOI)

Cheap Flights from Des Moines to Boise (DSM-BOI)

Prices were available within the past 7 days and start at $139 for one-way flights and $257 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Tue, Oct 28 - Tue, Nov 4
DSM
Des Moines
BOI
Boise
$257 Roundtrip, found 3 days ago
$257
Roundtrip
found 3 days ago
Select American Airlines flight, departing Tue, Oct 28 from Des Moines to Boise, returning Tue, Nov 4, priced at $257 found 3 days ago
American Airlines
Tue, Oct 28 - Tue, Nov 4
DSM
Des Moines
BOI
Boise
$259 Roundtrip, found 3 days ago
$259
Roundtrip
found 3 days ago
Select American Airlines flight, departing Tue, Oct 28 from Des Moines to Boise, returning Tue, Nov 4, priced at $259 found 3 days ago
American Airlines
Wed, Oct 1 - Tue, Oct 7
DSM
Des Moines
BOI
Boise
$261 Roundtrip, found 2 days ago
$261
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, Oct 1 from Des Moines to Boise, returning Tue, Oct 7, priced at $261 found 2 days ago
Delta
Wed, Sep 24 - Tue, Sep 30
DSM
Des Moines
BOI
Boise
$262 Roundtrip, found 5 days ago
$262
Roundtrip
found 5 days ago
Select Delta flight, departing Wed, Sep 24 from Des Moines to Boise, returning Tue, Sep 30, priced at $262 found 5 days ago
Delta
Wed, Oct 1 - Tue, Oct 7
DSM
Des Moines
BOI
Boise
$266 Roundtrip, found 2 days ago
$266
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Oct 1 from Des Moines to Boise, returning Tue, Oct 7, priced at $266 found 2 days ago
Delta
Tue, Sep 9 - Tue, Sep 16
DSM
Des Moines
BOI
Boise
$277 Roundtrip, found 9 hours ago
$277
Roundtrip
found 9 hours ago
Select Delta flight, departing Tue, Sep 9 from Des Moines to Boise, returning Tue, Sep 16, priced at $277 found 9 hours ago
American Airlines
Wed, Oct 15 - Mon, Oct 20
DSM
Des Moines
BOI
Boise
$278 Roundtrip, found 4 days ago
$278
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Oct 15 from Des Moines to Boise, returning Mon, Oct 20, priced at $278 found 4 days ago
United
Sat, Oct 25 - Wed, Oct 29
DSM
Des Moines
BOI
Boise
$283 Roundtrip, found 4 days ago
$283
Roundtrip
found 4 days ago
Select United flight, departing Sat, Oct 25 from Des Moines to Boise, returning Wed, Oct 29, priced at $283 found 4 days ago
Southwest Airlines
Sat, Sep 20 - Tue, Sep 23
DSM
Des Moines
BOI
Boise
$295 Roundtrip, found 4 days ago
$295
Roundtrip
found 4 days ago
Select Southwest Airlines flight, departing Sat, Sep 20 from Des Moines to Boise, returning Tue, Sep 23, priced at $295 found 4 days ago
Alaska Airlines
Thu, Oct 2 - Tue, Oct 7
DSM
Des Moines
BOI
Boise
$477 Roundtrip, just found
$477
Roundtrip
just found
Select Alaska Airlines flight, departing Thu, Oct 2 from Des Moines to Boise, returning Tue, Oct 7, priced at $477 just found

Find the cheapest month to fly from Des Moines (DSM) to Boise (BOI)

August is typically the cheapest month to fly

From $209 - $803 per traveler.

Graph displaying average flight prices per month

Alternative airports near Boise

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Boise Airport BOI. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $297
BOI
Boise Airport
CheapestClosest
Average driving time to city center8 min
Flights from $297
Flights from Des Moines (DSM) to Boise (BOI)
Origin airport
Des Moines Intl.
Destination airport
Boise
Airlines serving
Alaska Airlines, American Airlines, Delta, Southwest Airlines, United
Roundtrip price
$256
Distance
1153 mi

Des Moines to Boise Flights

The cheapest times to fly from Des Moines to Boise

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Des Moines to Boise are during the month of October. You can find some of the cheapest flights from Des Moines to Boise with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Des Moines to Boise

Sunday is one of the best days to book for cheap flights from Des Moines to Boise: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Des Moines to Boise

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Des Moines to Boise in 2025. You can also book with separate airlines for your outbound and return journeys, from $139 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Des Moines to Boise flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Des Moines to Boise airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Des Moines Intl. Airport (DSM) to Boise Airport (BOI) cost?
Grab a cheap one-way flight from $139 or cheap return flight from $257 from Des Moines Intl. Airport (DSM) to Boise Airport (BOI) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Des Moines Intl. Airport (DSM) to Boise Airport (BOI)?
The cheapest month to fly from DSM to BOI is October, when demand is low. Off-peak season is often when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Des Moines Intl. Airport (DSM) to Boise Airport (BOI)?
Use the filters on Expedia to compare airlines and find the cheapest carrier that'll take you from DSM to BOI. Then, sort your results by "Price (lowest to highest)" to score a good deal.
How many flights per day from Des Moines Intl. Airport (DSM) to Boise Airport (BOI)?
Direct flights from Des Moines Intl. Airport (DSM) to Boise Airport (BOI) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from DSM to BOI?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can vary based on a number of factors, including the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Des Moines Intl. Airport (DSM) to Boise Airport (BOI)?
To arrive at Boise Airport (BOI) without delays, opt for a flight that takes off from Des Moines Intl. Airport (DSM) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Des Moines Intl. Airport (DSM) to Boise Airport (BOI) last-minute?
Last-minute bookings from DSM to BOI are generally more expensive. To secure the best prices, start looking for flights as soon as possible. That said, if you're flexible with your travel dates, it's possible to score a cheap ticket right before you leave.
Is it cheaper to book a DSM to BOI flight and hotel package?
You'll generally save money by securing a DSM to BOI flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one place. Once you've selected your ideal accommodations and flights, consider adding extras such as activities, tours and car rentals.
Can I cancel or change the date of my flight from Des Moines Intl. Airport (DSM) to Boise Airport (BOI)?
If you booked your DSM to BOI flight within the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more details.

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*Available to One Key members.