Find Cheap Flights from Denver to Boise (DEN - BOI)

Flights overview

Useful information for finding cheap flights from Denver to Boise and booking your next trip

Cheapest round-trip flights	$165	Frontier Nonstop 3 hr Thu, May 28 — Sun, May 31	The cheapest round-trip flight from Denver to Boise is currently $165
Cheapest one-way flight	$67	Frontier Nonstop 3 hr Tue, Jun 9	The cheapest one-way flight from Denver to Boise is currently $67
Last-minute weekend getaway	$463	Frontier Nonstop 3 hr Thu, May 7 — Sun, May 10	The cheapest last-minute weekend getaway from Denver to Boise is currently $463
Cheapest business class flights	$403	Frontier Nonstop 3 hr Thu, May 28 — Sun, May 31	The cheapest business class round-trip flight from Denver to Boise is currently $403

Fastest flight	1 hr 55 min	The fastest nonstop flight from Denver to Boise takes 1 hr 55 min
Nonstop flights	Every day	There are direct flights on this route every day.

When is the cheapest time to fly?

The cheapest month to fly from Denver to Boise is typically February. The most expensive month to fly is typically May.

February Cheapest	Typical prices: $105–285
May Most expensive	Typical prices: $205–370

Popular airlines from Denver to Boise

United

Nonstop

from $271

Typical price: $215–460

35 weekly nonstop flights

DEN - BOI Every day

233 weekly connecting flights

DEN - BOI Every day
Southwest

Nonstop

from $281

Typical price: $210–435

22 weekly nonstop flights

DEN - BOI Every day

496 weekly connecting flights

DEN - BOI Every day
Delta

from $291

Typical price: $215–490

182 weekly connecting flights

DEN - BOI Every day
Alaska

from $334

Typical price: $235–495

159 weekly connecting flights

DEN - BOI Every day
American

from $367

Typical price: $300–640

105 weekly connecting flights

DEN - BOI Every day
Frontier

Nonstop

from $165

Typical price: $85–220

1 weekly nonstop flight

DEN - BOI Every Thu

Popular airports near Denver

Denver International Airport (DEN)

Denver United States 38 min 19 mi
Colorado Springs Airport (COS)

Colorado Springs United States 1 hr 27 min 66 mi
Centennial Airport (APA)

Denver United States 27 min 14 mi
Eagle County Regional Airport (EGE)

Vail United States 2 hr 19 min 103 mi

Popular airports near Boise

Boise Airport (BOI)

Boise United States 19 min 3 mi
Friedman Memorial Airport (SUN) (SUN)

Sun Valley United States 2 hr 16 min 96 mi
Magic Valley Regional Airport (TWF)

Twin Falls United States 2 hr 9 min 116 mi
Pocatello Regional Airport (PIH)

Pocatello United States 3 hr 16 min 188 mi

Frequently asked questions about flying from Denver to Boise

The cheapest flights from Denver to Boise are usually in February. Typical ticket prices in February range from $105 to $285.

The cheapest round-trip flight from Denver to Boise recently found on Google Flights was with Frontier from $165. The cheapest one-way flight was with Frontier from $67.

Some of the cheapest round-trip deals we found with different airlines:

The cheapest United flight from Denver to Boise is $271, flying from May 28 to Jun 1.
The cheapest Southwest flight from Denver to Boise is $281, flying from May 28 to Jun 1.
The cheapest Delta flight from Denver to Boise is $291, flying from May 28 to Jun 1.
The cheapest Alaska flight from Denver to Boise is $334, flying from Jul 30 to Aug 3.
The cheapest American flight from Denver to Boise is $367, flying from May 30 to Jun 1.
The cheapest Frontier flight from Denver to Boise is $165, flying from May 28 to May 31.

The cheapest round-trip flight from Denver to Boise starts at $165 from Thu, May 28 to Sun, May 31. The cheapest one-way flight starts at $67 and departs on Tue, Jun 9.

1 hr 55 min is the shortest flight time from Denver to Boise.

The most popular time to visit Boise is summer (Jun–Aug), when days are typically hot and dry. Temperatures can drop below freezing in winter (Nov–Feb). Big-name acts and local bands perform at the Boise Music Festival (Jun).

It's easy to use Google Flights to find the cheapest days to fly from Denver to Boise.
Just click the Departure label near the top of the page to open the calendar. Choose a start date and a return date to see how the round-trip fare changes on those specific days.
Adjust the trip type to see one-way fares. The cheapest available flights are highlighted and easy to spot. Once you settle on dates, click the Search button to see flight options and book the deal.

You can also turn on price tracking to get alerts if the price changes for a route or flight.

What counts as the best airline for your flights from Denver to Boise really depends on your individual needs. You may have a favorite carrier or a loyalty program you like, but price, convenience, and airports served also come into play. Flexibility and booking terms – Can you change flights if you want to stay longer or get a refund if you have to postpone your trip? – are also factors that help determine which airline is best to fly from Denver to Boise.

In terms of nonstop flights, United is the most popular. United offers 35 nonstop flights and 233 connecting flights per week. United flies from Denver International Airport (DEN) to Boise Airport (BOI) .

In terms of flights, Southwest is the most popular. Southwest offers 22 nonstop flights and 496 connecting flights per week. Southwest flies from Denver International Airport (DEN) to Boise Airport (BOI) .

Other popular airlines flying from Denver to Boise are:

Delta offers 182 connecting flights per week. Delta flies from Denver International Airport (DEN) to Boise Airport (BOI) .
Alaska offers 159 connecting flights per week. Alaska flies from Denver International Airport (DEN) to Boise Airport (BOI) .
American offers 105 connecting flights per week. American flies from Denver International Airport (DEN) to Boise Airport (BOI) .
Frontier offers 1 nonstop flights per week. Frontier flies from Denver International Airport (DEN) to Boise Airport (BOI) .

The number of connecting flights refers to distinct flights with at least one stop between Denver and Boise.

The cheapest round-trip flight from Denver to Boise recently found on Google Flights was with Frontier from $165. The cheapest one-way flight was with Frontier from $67.

Some of the cheapest round-trip deals we found with different airlines:

The cheapest United flight from Denver to Boise is $271, flying from May 28 to Jun 1.
The cheapest Southwest flight from Denver to Boise is $281, flying from May 28 to Jun 1.
The cheapest Delta flight from Denver to Boise is $291, flying from May 28 to Jun 1.
The cheapest Alaska flight from Denver to Boise is $334, flying from Jul 30 to Aug 3.
The cheapest American flight from Denver to Boise is $367, flying from May 30 to Jun 1.
The cheapest Frontier flight from Denver to Boise is $165, flying from May 28 to May 31.

United, Southwest and Frontier fly direct from Denver to Boise.

There are 35 United direct flights from Denver to Boise per week. Flights are available every day.
There are 22 Southwest direct flights from Denver to Boise per week. Flights are available every day.
There are 1 Frontier direct flights from Denver to Boise per week. Flights are available on Thursday.

Use the Stops filter while searching for flights, to see only nonstop options in your results.

The cheapest last-minute deal between Denver and Boise at price $463 is offered by Frontier from Thu, May 7 to Sun, May 10.

United, Southwest and Frontier fly direct from Denver to Boise.

There are 35 United direct flights from Denver to Boise per week. Flights are available every day.
There are 22 Southwest direct flights from Denver to Boise per week. Flights are available every day.
There are 1 Frontier direct flights from Denver to Boise per week. Flights are available on Thursday.

Use the Stops filter while searching for flights, to see only nonstop options in your results.

There are direct flights from Denver to Boise on a daily basis.

The cheapest direct (nonstop) round-trip flights between Denver and Boise start at $165 from Thu, May 28 to Sun, May 31 with Frontier.

It's easy to find nonstop flights with Google Flights! Once you've searched for flights from Denver to Boise, just select the nonstop flights only option in the 'Stops’ filter in the search form and view all available direct flights and their prices.

The cheapest business class round-trip flights between Denver and Boise start at $403 from Thu, May 28 to Sun, May 31 with Frontier.

The cheapest economy class round-trip flights between Denver and Boise start at $165 from Thu, May 28 to Sun, May 31.

To book business class trips from Denver to Boise, look for the default Economy selection at the top, and change it to your desired cabin class such as Premium Economy, Business Class, or First Class. You can then select your departure and arrival dates, consider available options, and book your business travel.

You can also adjust the trip type to view one-way fares.

The best last-minute getaway deal for the next weekend between Denver and Boise starts at $463 from Thu, May 7 to Sun, May 10 with Frontier.

The cheapest last-minute deal between Denver and Boise at price $463 is offered by Frontier from Thu, May 7 to Sun, May 10.

To find last-minute flight deals from Denver to Boise, start by entering the city names, select the desired departure and return dates, and hit the Search button to view flight options.

You can check for last-minute flights for the same day or adjust the trip type to see one-way fares.