$85 Find Cheap Flights from Denver to Boise - Compare and Save

United Airlines and Southwest are two airlines that operate non-stop flights from DEN to BOI. Delta, Spirit Airlines, American Airlines, Alaska Airlines, and Frontier are examples of some of the airlines that operate flights from DEN to BOI with one stop in between. Layover cities include Seattle (SEA), Salt Lake City (SLC), San Francisco (SFO), Los Angeles (LAX), and Phoenix (PHX).

Yes. Pre-security, BOI has a Mamava lactation pod for nursing mothers. This 4X8 freestanding unit is private, clean, and lockable. It has two benches, a shelf, a mirror, a coat hook, and an outlet. Beyond security, BOI also has a lactation room. This sanitized, private location has a changing station, a chair, and a sink.

Buses run from BOI into downtown Boise to the intersection of West River Street and South Capitol Boulevard. Bus 3 can get you there in about 10min and bus 4 can get you there in about 20min. The Boise Taxi Company frequents the Arrivals lanes at BOI and often takes fares into Boise on a trip that lasts about 8min.

Yes. In fact, the DEN CATS (Canine Airport Therapy Squad) has about 80 dogs and one cat teamed with trained handlers. These teams roam the airport offering solace and comfort to passengers who might be feeling anxious, stressed, bereaved, or confused. These animals are recognizable in their plaid vests of bright purple that say, “Pet me.”

Among airlines operating Denver to Boise flights:

• United Airlines: offers extra legroom; offers free seat selection
• Southwest: offers free seat selection
• Frontier: offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

2 airlines operate flights between Denver and Boise. The airlines offering nonstop flights on this route include:

• United Airlines
• Southwest

Flights from Denver to Boise usually depart from Denver Intl (DEN) and arrive at Boise Air Term. Gowen Fld (BOI).

Here are some options for this route, based on selected ticket types and cabin classes:

• United Airlines: a cabin bag and a checked bag in Economy Class
• Southwest: a cabin bag and a checked bag in Economy Class
• JetBlue: a cabin bag and a checked bag in Economy Class

Bag allowance can vary by ticket type, cabin class, route and airline, so travelers should check the fare details before booking.

Two cabin classes are available on flights from Denver to Boise:

• Economy Class
• First Class

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $190 round-trip via Seattle/Tacoma Intl (SEA), compared to $292 for nonstop.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $40–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

The Embraer 175 (Enhanced Winglets) family is used most often on this route, operated mainly by United Airlines. Other aircraft seen on the route include Boeing 737-900 variants.

One-stop flights from Denver to Boise most commonly connect through:

• Portland (PDX) - 36% of one-stop connections
• Salt Lake City (SLC) - 36% of one-stop connections
• Seattle/Tacoma Intl (SEA) - 21% of one-stop connections
• San Diego (SAN) - 7% of one-stop connections

Portland (PDX) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 37% on the Denver to Boise route. Thursday is the cheapest departure day at $227 round-trip on average, while Monday is the most expensive at $360, a difference of $133. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

Morning is the busiest departure period on Denver to Boise flights, with 38% of flights leaving in that window. Evening departures account for 37%, afternoon flights for 25%, and night flights for 0%.

Some of the most popular sights in Boise are Idaho Central Arena, Julia Davis Park and Discovery Center of Idaho. These are among the most viewed places in Boise on KAYAK.

These are the earliest and latest flight times available from Denver to Boise:

• Earliest: departs at 7:40 am and lands at 9:43 am
• Latest: departs at 11:55 pm and lands at 1:58 am.

The flight takes about 2h 03m.

Last-minute fares on this route - booked within 2 weeks of departure - run 66% above the route average of $294. Book 6 weeks before departure for the lowest fares.

A nonstop flight from Denver to Boise takes 2h 03m, covering 647 miles.

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $207 to $715. That means the highest observed fare was about 3x higher than the lowest one.

One-way fares from Denver to Boise are currently lower than usual. Average one-way flight prices are about $103, which is 48% below the typical average for this route.

Flying via Salt Lake City (SLC) gives the shortest average 1-stop total travel time at 3h 54m, compared with 5h 11m via Portland (PDX) and 6h 16m via Seattle/Tacoma Intl (SEA).

Boise Air Term. Gowen Fld Airport (BOI) hosts 5 major car rental companies, with daily rates starting from around $31 for economy cars. Top options include:
• Budget
• Alamo
• Hertz
• Enterprise Rent-A-Car
• Avis

Round-trip flights from Denver to Boise range from $190 to $393, with an average of $294 over the past 12 months. Anything below $190 counts as a good deal.

JetBlue is the only airline on the Denver to Boise route offering in-flight Wi-Fi. Pricing depends on fare class.