DEN - BOI

$99 Find Cheap Flights from Denver to Boise

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Denver to Boise departing on 8/14. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Boise

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Boise, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Boise, as well as popular online travel agencies
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Flights Deals

Cheap Flights from Denver to Boise (DEN-BOI)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Denver to Boise that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Denver to Boise

Thu, Oct 2 - Sun, Oct 5
Frontier Logo
9:48 am - 11:43 amDEN-BOI
1h 55mnonstop
Frontier Logo
12:53 pm - 2:53 pmBOI-DEN
2h 00mnonstop
$149Frontier
Find Deal
Thu, Oct 2 - Thu, Oct 9
Frontier Logo
9:48 am - 11:43 amDEN-BOI
1h 55mnonstop
Frontier Logo
12:48 pm - 2:48 pmBOI-DEN
2h 00mnonstop
$164Frontier
Find Deal
Tue, Sep 30 - Tue, Oct 7
Alaska Airlines Logo
6:17 pm - 11:59 pmDEN-BOI
5h 42m1 stop
Alaska Airlines Logo
7:21 am - 2:00 pmBOI-DEN
6h 39m1 stop
$210Alaska Airlines
Find Deal
Thu, Oct 2 - Mon, Oct 6
United Airlines Logo
7:45 am - 9:42 amDEN-BOI
1h 57mnonstop
United Airlines Logo
7:00 am - 8:55 amBOI-DEN
1h 55mnonstop
$211United Airlines
Find Deal
Fri, Oct 3 - Tue, Oct 7
Alaska Airlines Logo
6:17 pm - 11:59 pmDEN-BOI
5h 42m1 stop
Alaska Airlines Logo
7:21 am - 2:00 pmBOI-DEN
6h 39m1 stop
$217Alaska Airlines
Find Deal
Tue, Aug 5 - Tue, Aug 12
Southwest Logo
8:30 am - 3:10 pmDEN-BOI
6h 40m1 stop
Southwest Logo
1:15 pm - 3:10 pmBOI-DEN
1h 55mnonstop
$221Southwest
Find Deal
Tue, Jul 29 - Mon, Aug 4
Southwest Logo
3:25 pm - 5:20 pmDEN-BOI
1h 55mnonstop
Southwest Logo
5:25 pm - 7:25 pmBOI-DEN
2h 00mnonstop
$222Southwest
Find Deal
Tue, Aug 12 - Sun, Aug 17
United Airlines Logo
7:35 pm - 9:34 pmDEN-BOI
1h 59mnonstop
United Airlines Logo
5:42 pm - 7:39 pmBOI-DEN
1h 57mnonstop
$228United Airlines
Find Deal
Mon, Sep 29 - Thu, Oct 9
Delta Logo
6:15 am - 1:12 pmDEN-BOI
6h 57m1 stop
Delta Logo
6:00 am - 9:42 amBOI-DEN
3h 42m1 stop
$231Delta
Find Deal
Mon, Sep 29 - Sat, Oct 4
Delta Logo
5:30 am - 9:20 amDEN-BOI
3h 50m1 stop
Delta Logo
1:15 pm - 7:10 pmBOI-DEN
5h 55m1 stop
$241Delta
Find Deal
Expert advice

Expert advice for your flight from Denver to Boise

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
United Airlines

Consider Economy Plus for up to six inches more legroom than standard economy seats.


Purchase Priority Boarding to ensure overhead bin space for your carry-on.

Southwest

Enjoy two free checked bags up to 50 pounds each, ideal for family travel.


Use EarlyBird Check-In for a better boarding position, avoiding middle seats.

Read more about Southwestby Blane Bachelor
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines

Stefanie Waldek

Stefanie Waldek

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Read more
Blane Bachelor

Blane Bachelor

Expert on Southwest

Blane Bachelor

Blane Bachelor

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Read more
Useful Info

KAYAK's insights & trends for Denver to Boise flights

Get data-powered insights and trends into flights from Denver to Boise to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Denver to Boise?

The average price of all round-trip flights from Denver to Boise clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Denver to Boise, look for departures on Sundays and avoid leaving on a Monday, as it's usually the priciest day. When flying back from Boise, Thursday is the cheapest day to fly and Sunday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Denver to Boise, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Denver to Boise is May, where tickets cost $252 (return) on average. On the other hand, the most expensive months are December and November, where the average cost of round-trip tickets is $444 and $368 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Denver to Boise, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Denver to Boise, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 11 weeks before departure.

Good to know

Low seasonJanuary
High seasonJuly
Cheapest flight$99
Best time to beat the crowds but there is an average 3% increase in price.
Most popular time to fly and prices are also 11% lower on average.
Flight from Denver to Boise

When to book flights from Denver to Boise

Are your dates flexible? Find out the best times to travel from Denver to Boise based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Denver to Boise

  • How can I fly from DEN to BOI?

    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).

  • Does BOI have facilities for nursing mothers?

    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.

  • How do I get from BOI into downtown Boise?

    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.

  • Does DEN have an animal therapy program?

    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.”

  • What is the cheapest flight from Denver to Boise?

    In the last 3 days, the lowest price for a flight from Denver to Boise was $99 for a one-way ticket and $149 for a round-trip.

  • Do I need a passport to fly between Denver and Boise?

    A passport is not required to fly from Denver to Boise.

  • Which airports will I be using when flying from Denver to Boise?

    Denver and Boise are both served by 1 main airport. You will leave Denver from Denver Intl and will be arriving at Boise Air Term. Gowen Fld.

  • Which airlines offer Wi-Fi service onboard planes from Denver to Boise?

    American Airlines, Alaska Airlines, and JetBlue offer inflight Wi-Fi service on the Denver to Boise flight route.

  • Which aircraft models fly most regularly from Denver to Boise?

    The Boeing 737-900 is the aircraft model that flies most regularly on the Denver to Boise flight route.

  • Which airline alliances offer flights from Denver to Boise?

    Star Alliance is the only airline alliance operating flights between Denver and Boise.

  • On which days can I fly direct from Denver to Boise?

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

  • Which is the best airline for flights from Denver to Boise, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Denver to Boise are Southwest and Delta. With an average price for the route of $292 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $236 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from Denver to Boise?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Denver to Boise.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Denver to Boise?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boise from Denver is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Denver to Boise?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Boise with an airline and back to Denver with another airline. Booking your flights between Denver and BOI can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Denver to Boise?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Boise from Denver up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Denver to Boise

  • Looking for a cheap flight? 25% of our users found flights on this route for $105 or less one-way and $116 or less round-trip.
  • Denver International Airport (DEN) serves as a hub for United Airlines and Frontier Airlines. It also serves as a focus city for Southwest Airlines. Boise Airport - Boise Air Terminal - Gowen Field (BOI) is not a hub for any airlines, but it is a focus city for Alaska Airlines.
  • As you're traveling through BOI, you can appreciate the work of Idaho artists at the Art Source Gallery. The gallery is located on the second floor of Concourse B.
  • If you are traveling with a service animal or pet who needs to go to the bathroom as soon as you land at BOI, you can take advantage of either of the two animal relief stations at the airport. One of them is located Landside, outside the baggage claim, on the first floor, to the west. The other animal relief area is Airside.
  • If you want to stay near the DEN the night before your flight to BOI, consider staying at the Westin Hotel at Denver International Airport. This hotel is on airport grounds and connected to the airport. Aside from its convenient proximity to the airport, this hotel has a pool and a restaurant.
  • In Terminal A, DEN features a USO lounge that welcomes active duty, reserve, guard, or dependents with a US military ID card. Open from 7 am to 7 pm, this USO offers coffee and tea, snacks, beverages, charging stations, Wi-Fi, TV, comfy seating, a sleeping area, and flight boards.

Prefer to fly direct from Denver to Boise?

Find which airlines fly direct from Denver Intl Airport to Boise Air Term. Gowen Fld Airport, which days they fly and book direct flights.

Direct departures

Denver Intl to Boise Air Term. Gowen Fld

Monday

Air Canada, Copa Airlines, Lufthansa, +3 more

Air Canada, Copa Airlines, +4 more

Tuesday

Air Canada, Lufthansa, Southwest, +1 more

Air Canada, Lufthansa, +2 more

Wednesday

Air Canada, Copa Airlines, Lufthansa, +3 more

Air Canada, Copa Airlines, +4 more

Thursday

Air Canada, Copa Airlines, Frontier, +3 more

Air Canada, Copa Airlines, +4 more

Friday

Air Canada, Copa Airlines, Lufthansa, +4 more

Air Canada, Copa Airlines, +5 more

Saturday

Air Canada, Copa Airlines, Lufthansa, +2 more

Air Canada, Copa Airlines, +3 more

Sunday

Air Canada, Copa Airlines, Frontier, +4 more

Air Canada, Copa Airlines, +5 more

See more direct flights

Direct returns

Boise Air Term. Gowen Fld to Denver Intl

Monday

Air Canada, Copa Airlines, Lufthansa, +3 more

Air Canada, Copa Airlines, +4 more

Tuesday

Air Canada, Lufthansa, Southwest, +1 more

Air Canada, Lufthansa, +2 more

Wednesday

Air Canada, Copa Airlines, Lufthansa, +3 more

Air Canada, Copa Airlines, +4 more

Thursday

Air Canada, Copa Airlines, Frontier, +3 more

Air Canada, Copa Airlines, +4 more

Friday

Air Canada, Copa Airlines, Lufthansa, +4 more

Air Canada, Copa Airlines, +5 more

Saturday

Air Canada, Copa Airlines, Lufthansa, +2 more

Air Canada, Copa Airlines, +3 more

Sunday

Air Canada, Copa Airlines, Frontier, +4 more

Air Canada, Copa Airlines, +5 more

See more direct flights
See more direct flights

Top 5 airlines serving from Denver to Boise

 
See real verified KAYAK customer reviews for airlines flying from Denver to Boise. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Denver to Boise? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 10000 reviews
7.1Food
8.1Boarding
7.8Comfort
7.1Entertainment
8.5Crew
Airline reviews

Flight was delayed 5 hours. Missed connecting flight. Very little apology or attempt to make anything better. Got a $150 credit for next flight. There won’t be another flight. First time on Alaska - last time. Keep your credit. Should have done something more

2.0 MediocreMary, Jun 2025ORD - SEA
Read more Alaska Airlines reviews

Flight was delayed 5 hours. Missed connecting flight. Very little apology or attempt to make anything better. Got a $150 credit for next flight. There won’t be another flight. First time on Alaska - last time. Keep your credit. Should have done something more

Horrible! No blanket or pillow available! We had bulkhead seats but the seats were worn out and no cushion old. No meal or even a sandwich for our 5 hour flight just a little bag of pretzels. Crabby attendant female with long brown hair. We will not book Alaska Airlines again

It sucks, flight delays at FAT caused us to miss a day at lodge and overnight in Seattle. Flight delays coming home also. Never again

We had to take the train to our next gate but had time to eat a meal. When to our next gate and asked employee about gate and got informed that gate had been changed so back on train to next gate. So thankful she was there and informed us of gate change. Because of the issue the boarding was slow but employees were there and busy helping all and keeping it organized.

The crew the employees were friendly and excellent. There was a problem with the plane and they had workers there immediately working on it. They made sure the people that had immediate connects knew what gates they had to get to and had them leave the plane first. Very thoughtful.

On time, smooth take off and landing, efficient boarding. Gate staff excellent, stewardess grumpy, but civil enough.

No WiFi available. It was too late to order food also. Guy next to me was huge (not fat) so had his shoulder & thigh next to me the whole way. Plane was delayed leaving PDX due to 8 other planes waiting. Not my best Alaska airlines flight.

Very pleasant and the flight felt like it went by quick

We waited over an hour for our luggage to arrive at the carousel in Seattle.

The plane was delayed a bit. It wasn't a huge problem though, as we were heading back home.

Southwest is typically delayed, and it gets wearisome. It is no longer a discount airline and you get way less than you pay for when it comes to comfort and Ce.

We sat on the plane on the tarmac for 4 hours.

I'm not a fan of Southwest's model. I don't like the herding style of boarding.

Flight crew and cabin crew were great. I had to rearrange flights because my original flight was 3hrs delayed for weather, the rub is the flight I moved to boarded on time then we sat at the gate for 2 hours because scheduling stole our first officer for another flight, TWICE. Then our actual FO was an hour delayed. To make it worse my original flight went from a 3 hour delay to departing 15min EARLY. Just poor scheduling operations all around.

Bring back peanuts Take our drink orders when were all seated, especially after you switch to assigned seating.

Staff was far less than helpful at all times. Departure and arrival times mean nothing to Southwest. Extremely disappointed, will never fly with them again, and I’ll be sure to share my experience with all.

It is southwest seat was ok. Not the most comfortable seat

I’ve always loved Southwest. No issues at all. I was flying standby and the gate agent was extremely friendly and helpful. Boarding was smooth and I was able to get a window seat in the emergency exit row. Crew was fantastic! They were very professional and accommodating. We had to divert from our destination due to weather but the flight crew kept everyone at ease and informed us of all pertinent information. Excellent flight

The price of the tickets isn't matching the flight experience. No matter how long the flight is, you're only getting pretzels. The flight attendants looked unkept and over it.

Plz don't take away free bags and free seating

Great service. Flight was delayed while we sat on the runway for a couple of hours. Weather related. Staff made is very bearable. The steward servicing the first class cabin was exceptional. Thank you! 💗

5 hours of delay that could've been much shorter if Delta had taken the 1 hour delay they imposed on the flight before boarding to run any of the plane checks required for flight to find the hydraulic issue that required nearly 3 hours to fix. $24 of meal credit buys a sandwich and a soft drink. Poor communication within the terminal about what gate we'd be re-boarding from and when we'd be re-boarding.

Amazing flight! I have never noticed the uniforms of the attendants before in twenty years of flying except today when one female had the most amazing dress on. It was beautifully designed and showed she was in charge. I never dreamed I would google who designed Delta uniforms . The ultimate compliment is when another woman admires your outfit. . I hope your designer puts it on the market

It would be nice if was given wires ear buds. Overall was a good experience was able to sleep on the plane

My flight was 6 pm 6/6. Every hour they delayed it again - air condition issues then no pilot then the crew had worked too many hours and cancelled the flight at 11 pm. Sent customers to NJ a 45 minutes uber ride to a hotel. Had to be back by 5 am for a 7 am flight and again no pilot etc with another three hours of delays.

The entertainment and wifi mostly didn't work on this flight.

Terrible entertainment system - kept freezing and audio kept cutting out. Snacks were mediocre at best for a 5 hour flight.

The check in and bag drop off for Sky Priority members is slow. The Clear security was also slow - a TSA issue.

I am still upset that my bag was lost on a recent trip to Rome ; we were inconvenienced and out €150 Euros ; delta has refused to reimburse us

I am very bothered by the events today. I can't believe the flight attendants allowed someone to take my seat and made me move. It was embarrassing. I was in the right. The lady just didn't want move. I can't believe delta would allow this to stand and disrespect my rights as a passenger. The lady complained about her leg and that she couldn't move. Firstly somehow she was able to make it to row 24. Not sure how much her leg could have hurt. Secondly, I'm in plenty of pain myself. I just finished chemotherapy a several weeks ago. My body is constantly sore. Yet deltas flight attendants didn't appropriately protect my rights. In the end they found me a seat on the plane but I want to understand how delta can operate this way. They in essence allowed a bully to get their way.

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

Electric plugs didn't work. Entertainment system wasn't working

The design of the light switch on the arm rest is ridiculous.

The gate attendant let me walk right by her with a bag too big for the overhead compartment

Overall, it was a good experience. Boarding was good and there was plenty of overhead bin space for everyone’s carryons (even when we boarded toward the end). Only improvement would be to offer trash service more regularly.

David went above and beyond to make our flight the best that it could be

No food service almost missed because of first flight delays

Had a hard time finding my assigned seat. No attendants to assist.

The negative was the wait at the airport coming back. I checked my bags in, an hour before boarding and I get the notification that my flight was delayed. Rather had gotten the notification while I was at the hotel. Then it was delayed 3 x’s. Ugh!

I never got to experience the flight because they delayed my first flight and I missed this one. Then Frontier didn't want to help me rebook a flight to get me to my final destination.

The Boarding process in Denver was chaotic, and since the line was so long, we were lined up very far from the gate. If there were any announcements from the gate staff, we didn't hear them. The flight attendants were spectacular. The only negative part of the flight was sitting by a 2 1/2 year old who was unruly and unfortunately had parents that matched his behaviors. Also, the restaurants in Denver on the E concourse, they didn't have food (passengers could only order 1 item on the entire menu) or the restaurants had 12-14 people waiting for orders to be prepared and another 6 people waiting to order. If you have a layover in Denver and need to grab food, be prepared to visit the shops with pre-packaged sandwiches, or you can visit another concourse but it may take a while to transit throughout the airport.

Everything went as planned. Crew was great. Seats were still not that comfortable.

they delayed my flight which ended up, causing my layover flight to leave without me, resulting in me missing a flight and having to stay overnight in Houston international. I got no compensation other than a flight to my original location only a day later. i’ve never experienced such a unprofessional situation

The seats were extremely hard and uncomfortable, even for a budget airline.

Boarding was very well executed. Got my bag right away.

Overall experience good. There was no food and seats were not terribly comfortable.

There was nothing to like, flight delayed had to move to different departure areas, disorganized to say the leasr

There were a lot of issues every step of the process. Check in, security, boarding, and dealing with luggage. Plus the money you think you are saving you end up using in hidden fees.

The flight attendant was arguing with a passenger before takeoff. The passenger was frustrated but the flight attendant should have handled it with grace, but instead she was nasty and rude. The seats were comfortable and the flight was uneventful. I wish we didn’t have to pay for drinks or snacks but that’s what you get with a budget airline.

Everything you need to know for your flight from Denver to Boise

Information on your arrival and departure airports

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