$65 Find Cheap Flights from Idaho to Colorado

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Low season

January

High season

July

Cheapest flight

$65
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly with an average 6% increase in price.
Flight from Boise to Denver

FAQs for booking flights from Idaho to Colorado

  • How does KAYAK find such low prices on flights from Idaho to Colorado?

    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 Idaho to Colorado.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Idaho to Colorado 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 Idaho to Colorado?

    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 from Idaho to Colorado with an airline and back with another airline.

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

    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 from Idaho to Colorado up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which airlines fly most frequently to Colorado?

    Idaho and Colorado are connected by different airlines. The airlines that fly that route the most regularly are United Airlines (84 flights per week), Air Canada (37 flights per week), and Southwest (20 flights per week).

  • How many airports are there in Colorado?

    There are 13 airports in Colorado. The busiest airport is Denver Airport (DEN), with 86% of all flights arriving there.

  • Which is the cheapest airport to fly into in Colorado?

    Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Colorado is Denver Intl Airport (DEN), with an average flight price of $290.

  • What is the cheapest day to fly to Colorado?

    Based on KAYAK data, the cheapest day to fly to Colorado is Friday where round-trip tickets can be as cheap as $495. On the other hand, the most expensive day to fly is Monday, where round-trip prices are $594 on average.

  • What is the cheapest time of day to fly to Colorado?

    The cheapest time of day to fly to Colorado is generally in the evening, when round-trip flights cost $437 on average. Morning departures are around 24% more expensive than evening flights, on average. The most expensive time of day to fly to Colorado is generally in the morning, which is peak travel time and where the average cost of a ticket is $543.

  • What is the cheapest flight to Colorado?

    The cheapest ticket to Colorado from Idaho found in the last 72 hours was to Denver, at $204 round-trip. The most popular route is Boise (BOI) to Denver (DEN) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $204.

  • What is the cheapest month to fly from Idaho to Colorado?

    The cheapest month for flights from Idaho to Colorado is January, when tickets cost $248 (return) on average. On the other hand, the most expensive months are April and May, when the average cost of round-trip tickets is $560 and $452 respectively.

  • How far in advance should I book a flight from Idaho to Colorado?

    To get a below average price on the flight from Idaho to Colorado, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

  • How many cities have direct flights to Colorado?

    From Idaho, there are direct flights to Colorado from 3 cities. The city with the most direct flights is Boise, with 116 direct flights each week.

  • How many direct flights to Colorado are there each day?

    There are around 24 direct flights from within Idaho to Colorado every day. Most flights (53%) depart in the afternoon.

  • How many direct flights to Colorado are there each week?

    Each week there are around 168 direct flights from within Idaho to Colorado. The most common day for departures is Sunday, with 19% of flights taking off on this day.

  • How long is the flight to Colorado?

    An average nonstop flight from Idaho to Colorado takes 4h 22m, covering a distance of 589 miles. The shortest route is Jackson (JAC) to Denver (DEN) with an average flight time of 1h 35m.

  • How many long-haul flights are there to Colorado each week?

    There are not any long-haul (6-12 hour flight duration) or medium-haul (3-6 hour flight duration) flights to Colorado. Instead, there are 168 short-haul flights (up to 3 hour flight duration), with the most arriving from Boise.

  • What are the most popular destinations in Colorado?

    Based on KAYAK flight searches, the most popular destination is Denver (91% of total searches to Colorado). The next most popular destinations are Colorado Springs (6%) and Grand Junction (2%). Searches for flights to Montrose (1%) are also popular.

See more FAQs

Top 5 airlines serving from Idaho to Colorado

Need help choosing which airline to fly with from Idaho to Colorado? 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 9811 reviews
8.5Crew
7.9Comfort
7.1Food
8.2Boarding
7.1Entertainment
Airline reviews

Worst part is being squashed in a seat ( I am not fat) and unable To get comfortable

8.0 ExcellentAnonymous, Mar 2025MCO - SEA
Read more Alaska Airlines reviews

Worst part is being squashed in a seat ( I am not fat) and unable To get comfortable

It was alright other than the changes in the Alaska Lounge. That and the migraine I had were disappointing. Other then that everything went well.

Took forever to get on board. Flights was one hour late.

Amazing. They work with my disabilities with such kindness, attention, wnd diligence. They make it easy for those of us who need a little more extra care.

Everything was good. The flight attendants were great. I was disappointed that there wasn’t any screens on the back of the seats to watch movies, tv, etc. I only had my phone to watch movies on.

They always change the schedule. My original flight got canceled. They put me up in the air flight. I had to stay seven hours in Seattle. That is bad.

I had a great travel experience with Alaska. The agents and cabin crew were all so pleasant and helpful. The plane was clean and comfortable. The connecting flights went smoothly even with some minor delays. All in all, it was nice not to be upset with the journey. I say that because over the last few years all my travel has been on Delta and American, and always involved cranky employees and flight issues. I wish Alaska flew everywhere I need to go. Will definitely fly Alaska every time I have a choice. Thanks for helping me look forward to traveling again.

Flight delayed due to engine issue. For 3+ hours still not on flight

A little delay but nice flight, nice team. Thank you.

Could have had more of a beverage selection than water and apple juice.

1.5 hour delay, poor service, no compassion from the crew. Terrible experience

Great flight, 47 passengers on a 180 seat plane. Stewardess was pleasant and cheerful.

Short flight with plenty of open seats. Drinks and snacks were still provided even on such a short flight. <1 hr

I liked the crew member who gave flight instructions on "in case of a problem:. The seats are so small that only a young teenager could sit in middle seat.

Great experience flying Southwest. The crew was really kind and helpful, and very friendly with our toddler.

Very good. Sad to learn Southwest is going start to charge for bags

Our flight was diverted from being a non-stop to getting within 150 miles and requiring another plane. We heard 4 or 5 different versions from SW as to why we had to stop, then wait for a replacement plane. Five hour delay, weather did not come up as a single excuse.... communication was not clear and well explained. No one really took charge!

My flight to Chicago left and landed early. My return flight left two minutes late and arrived 2 minutes late. My seat selections were ideal! There were no snacks going to Chicago and no snacks on the return trip. There are no charging outlets on board.

WiFi on the flight was not working. Thus, entertainment options were limited.

Great flight staff. Ease of boarding. Overall, very uneventful and easy trip.

Simply outstanding. Their new lounge for Delta One customers is a cut above the rest.

The Dekta Rep that checked us in was great. She's very personable, pleasant, and can tell she enjoys her job.

The plane was old with small storage areas that had problems closing/latching and not enough storage for everyone, and worn, damaged seats. Service was great but feel a little unsafe on such well used planes.

Terrible and im avoiding them in the future. My initial flight was delayed causing me to rebook my flight and when speaking with the representative to rebook I explained this is the second time my flights were delayed and they did nothing to help me. I wasn't booked to comfort plus or given a voucher or anything. I was almost late for my meeting that I needed to attend on Monday because of the games delta played delaying my flights even more and putting me in the very back of the plane next to an extremely intoxicated passenger

Flights on time. .Ride was as comfortable as can be expected in steerage. Luggage arrived at destination. Attendants were fairly friendly.

Great staff. Wifi is terrible. Signing up for skylines is a painstaking process. Had to call customer service just to get my flight itinerary and confirmation sent to me. Consistent delays. A well staffed company that is run so poorly. Upper management needs to be renewed.

The WiFi didn't seem as fast as it normally is

Thank you for not flipping the plane on the run way. You guys get a 5 star rating for the flight!!!

The crew was wonderful and attentive. The seats near exit row were restrictive. Offer healthy snacks please

Delta is a premier airline so my expectations are most always met.

Food choices were very limited. Taste of the dishes was average.

I liked all the informational texts. I always knew where to go and when .

Received an email the night before showing that there would be seatback entertainment on our flight. We get on and there was no seatback entertainment. And then it was a scramble to try to set up the iPads for the kids before takeoff so they could watch something for the four hour flight.

The reason I don’t fly United. No in seat entertainment for a long flight and inconsistent WiFi and entertainment available from my device.

It was a good flight. Nothing comes to mind about how it could have been better. It was a newer plane, seemed like a great upgrade from your older ones. Staff was very good as well.

The food for long haul was poor compared to Singapore airlines economy. Pasta plain with tomato sauce . Singapore airlines give me Hagen dash small ice cream cup it was great. The choices of dinner course Singapore air also much better The crew mostly friendly. The economy seat are as expected.

The plane was clean. The staff was excellent. The flight attendants were very good. Enjoyable flight. Overall. The seats in the back are too small but, will always be.

Flight was 3 1/2 hour delayed with no credit or meal vouchers

late departure due to some unspecified issue with ventilating the cabin. They got it running but it was FREEZING for the whole flight. I asked for a blanket but they didn't provide one. They could not turn up the heat. it was quite miserable.

Liked that we left on time for each flight. Snacks not the best, but we're okay.

The plane failed preflight inspection, so we sat there for 90 mins while they tried to fix it. Ultimately, everything was remedied and we made our connecting flight; instead of a 2 hour layover at the airport, we spent it waiting on the plane.

I loked walking out on the tarmac to board and no first class. I didn't like that they have no snacks or onboard wifi to bide your time.

The seats were extremely hard and uncomfortable. It was disappointing even for a budget airline.

Delayed each time on a round trip with no significant weather interference. Updates to flight times came after the fact. 30 min behind in boarding and board and phone still show an on time departure. Some mysterious extra 300 miles that came so surprising they had to fuel while we were already on board?

Our flight was canceled for no known reason. We weren’t told until we were checking in at 5:00 am. This was after our last flight with Frontier where we sat on the plane for three hours (not an exaggeration) before we took off because of a mechanical issue. We won’t be flying Frontier again.

Allowed me to chose my seat without extra charge (I purchased full-price ticket) and boarding was in group1. Didn't even serve water.

Stuck in Phoenix for two days, not even a hotel voucher offered.

Every day about it was very different all the boarding pass where all wrong l miss flight no refund all crazy

Flight got delayed for 3.5 hours, and for the first hour after the departure time there was no update from the gate folks...

Both flights were delayed. The sizing of bags is crazy. I know it is advertised as a no frills cheaper option but it does feel like you are being extorted for money the whole way-- $20 dollars to talk to a gate agent? Charging for soda a pretzels? I don't think I will be flying Frontier again if I can help it. That said, all the staff were wonderful.

Book cheap flights from Idaho to Colorado

Recent round-trip flight deals

8/5mar.
nonstopFrontier
2h 00mBOI-DEN
8/10dom.
nonstopFrontier
1h 56mDEN-BOI
$145
5/15jue.
nonstopFrontier
1h 59mBOI-DEN
5/18dom.
nonstopFrontier
1h 57mDEN-BOI
$156
5/29jue.
nonstopUnited Airlines
1h 57mBOI-DEN
6/4mié.
nonstopUnited Airlines
2h 01mDEN-BOI
$194
5/26lun.
nonstopSouthwest
1h 55mBOI-DEN
5/27mar.
nonstopSouthwest
1h 55mDEN-BOI
$197
5/29jue.
1 stopUnited Airlines
5h 11mBOI-DEN
6/4mié.
nonstopUnited Airlines
2h 01mDEN-BOI
$204
7/29mar.
1 stopAlaska Airlines
4h 52mGEG-DEN
8/12mar.
1 stopAlaska Airlines
5h 28mDEN-GEG
$206
6/3mar.
nonstopSouthwest
1h 55mBOI-DEN
6/5jue.
1 stopSouthwest
8h 35mDEN-BOI
$210
5/29jue.
1 stopDelta
8h 15mBOI-DEN
6/4mié.
1 stopDelta
4h 36mDEN-BOI
$214
6/24mar.
1 stopAlaska Airlines
6h 16mBOI-DEN
6/28sáb.
1 stopAlaska Airlines
6h 20mDEN-BOI
$216
5/30vie.
1 stopDelta
4h 50mBOI-DEN
6/3mar.
1 stopDelta
4h 36mDEN-BOI
$217

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Recent one-way flight deals

7/1mar.
nonstopFrontier
1h 58mBOI-DEN
$65
5/20mar.
nonstopFrontier
1h 59mBOI-DEN
$66
7/9mié.
nonstopUnited Airlines
1h 57mBOI-DEN
$89
6/3mar.
1 stopAlaska Airlines
5h 16mGEG-DEN
$98
6/11mié.
nonstopSouthwest
2h 10mGEG-DEN
$99
5/28mié.
1 stopDelta
4h 50mBOI-DEN
$99
4/29mar.
1 stopAlaska Airlines
7h 39mBOI-DEN
$105
4/30mié.
nonstopSouthwest
1h 55mBOI-DEN
$106
5/28mié.
nonstopUnited Airlines
1h 57mBOI-DEN
$114
5/20mar.
1 stopDelta
6h 40mBOI-DEN
$116

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Last minute flights from Idaho to Colorado

Last minute flight, train and bus deals

4/2mié.
multi-stopDelta
3h 36mIDA-DEN
4/7lun.
multi-stopDelta
6h 31mDEN-IDA
$324
4/2mié.
nonstopUnited Airlines
1h 46mIDA-DEN
4/7lun.
nonstopUnited Airlines
1h 45mDEN-IDA
$329
4/1mar.
multi-stopDelta
5h 17mIDA-DEN
4/8mar.
multi-stopDelta
4h 25mDEN-IDA
$344
4/4vie.
multi-stopAmerican Airlines
6h 51mIDA-DEN
4/6dom.
multi-stopAmerican Airlines
7h 29mDEN-IDA
$364
4/5sáb.
multi-stopAlaska Airlines
10h 58mBOI-DEN
4/8mar.
multi-stopAlaska Airlines
7h 35mDEN-BOI
$484
4/5sáb.
nonstopUnited Airlines
1h 59mBOI-DEN
4/8mar.
nonstopUnited Airlines
2h 08mDEN-BOI
$565
4/5sáb.
multi-stopAlaska Airlines
10h 58mBOI-DEN
4/8mar.
multi-stopAlaska Airlines
11h 12mDEN-BOI
$582
4/2mié.
multi-stopAmerican Airlines
7h 41mIDA-DEN
4/4vie.
multi-stopAmerican Airlines
7h 35mDEN-IDA
$711
4/3jue.
nonstopSouthwest
2h 20mGEG-DEN
4/7lun.
nonstopSouthwest
2h 20mDEN-GEG
$902
4/2mié.
multi-stopSouthwest
5h 30mGEG-DEN
4/6dom.
nonstopSouthwest
2h 30mDEN-GEG
$912

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Everything you need to know for your flight to Colorado

Cabin class types available on flights to Idaho

Cabin classes available on flights to Idaho. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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