$64 Find Cheap Flights from Idaho to Colorado

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Low seasonJanuary
High seasonJuly
Cheapest flight$64
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly with an average 5% 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 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 $308.

  • What is the cheapest day to fly to Colorado?

    Based on KAYAK data, the cheapest day to fly to Colorado is Wednesday where round-trip tickets can be as cheap as $489. On the other hand, the most expensive day to fly is Monday, where round-trip prices are $591 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 $434 on average. Morning departures are around 25% 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 $540.

  • What is the cheapest flight to Colorado?

    The cheapest ticket to Colorado from Idaho found in the last 72 hours was to Denver, at $207 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 $207.

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

    The cheapest month for flights from Idaho to Colorado is June, when tickets cost $238 (return) on average. On the other hand, the most expensive months are April and May, when the average cost of round-trip tickets is $583 and $512 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 long is the flight to Colorado?

    An average nonstop flight from Idaho to Colorado takes 4h 09m, covering a distance of 589 miles. The shortest route is Jackson (JAC) to Denver (DEN) with an average flight time of 1h 35m.

  • What are the most popular destinations in Colorado?

    Based on KAYAK flight searches, the most popular destination is Denver (94% of total searches to Colorado). The next most popular destinations are Colorado Springs (5%) and Grand Junction (1%). Searches for flights to Montrose (1%) are also popular.

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 9972 reviews
8.1Boarding
7.1Entertainment
8.5Crew
7.1Food
7.9Comfort
Airline reviews

My youngest didn't have a assigned seat until we biard6the plane.

2.0 MediocreStephanie, Apr 2025SAN - SLC
Read more Alaska Airlines reviews

My youngest didn't have a assigned seat until we biard6the plane.

Booked a premium seats weeks ago and got an email the night before that id instead be seated in the cabin. Only reason I booked this overnight flight was for the better seating. All they are doing to compensate is giving a $29 coupon to use on another flight. I won’t be booking this airline again.

It was all great all around. Will travel with Alaska next trip.

I got the last seat on the plane, in the back in the corner against the window, and I paid a competitive price for my ticket several weeks before the flight.

Everything was good. However, the selections of movies and TV shows were boring and unexciting. It was disappointing.

Long delay before boarding. By the time I was informed of the delay I was already at the gate.

There was no seating at the gate, no where to charge your devices, super crowded. Boarding in group F meant all luggage space was taken when it was time for me to board. The boarding crew was short with everyone and seemed irritated. The luggage space was insufficient, the seat was too small for me (6'4") and very uncomfortable trip. I was in a middle seat between a person snoring the whole trip and a person with very strong body odor. The flight crew was terse and unfriendly, seemed irritated and impatient. Yelled a lot at people with earbuds in, understandable. Finally, we arrived 10 minutes early, only to sit on the tarmac for 20 minutes and wait for a gate. Worst flight experience I've had in years.

I made a mistake. Read what I wrote in the flight from Dulles to SEA. The negative experience was from SEA to BOI. Total garbage. Wont do it again.

Flight 351 SEA to BOI was terrible. We got to cruising altitude and I needed to use the restroom but the fasten seatbelt sign never came off. There was no turbulence and I'd felt the plane level off so I stood up to use the restroom about 15 minutes after we leveled off. The stewardess went over the intercom and said I needed to be seated because the captain hadn't turned off the fasten seatbelt sign....Which... Fair.... But not five minutes later she went and used the bathroom. Felt very unprofessional to leave a paying customer with a burning urethra for the entire flight and bark at them to sit down and still use the bathroom yourself. They never did turn off the seatbelt sign.

For longer trips, snacks are puny, boring and don’t have ANY nutritional value.

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

The seats were a bit cramped and worn, but otherwise okay.

I would have liked to arrive on time - not 5 hours late!

After a 3 hour layover in Denver my flight was delayed over 5 hours! No explanation; no assistance; no offer to provide compensation; no one at Southwest was willing to offer any assistance. 8 hours in the Denver airport - ridiculous!

It was a perfect flight in all aspects! Both legs!

Only one drink pass through the cabin for a 4 hour flight. Quite rough and bumpy landing.

Boarding process, crew were good. But the seats were so uncomfortable that was all I could focus on. I literally had to sit forward so that all 3 of us could fit in row. I will try to avoid Southwest in the future for any flights over 60 minutes.

Flight was delayed due to weather. Crew did a nice job of making us comfortable. No complain complaints.

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

Crew was friendly Love the entertainment in the seat head rest.

Delta flight was on time, seats were comfortable, and crew was nice.

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.

The worst part was I was NOT allowed in the lounge even though I was holding a first class ticket and have a premium American Express card. I have flown Business or First Class with many airlines. Delta is the ONLY one who does not extend this courtesy to anyone except people who hold the very expensive American Express card. As a result, I won’t fly Delta if I have any other choice.

A little bumpy ride . No food was being provided due the the turbulence. That was ok it was a short flight to my standards.

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

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.

Seats are uncomfortable but price is good. Guess I can put up with misery for four hours.

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...

Book cheap flights from Idaho to Colorado

Recent round-trip flight deals

5/25Sun
nonstopAllegiant Air
1h 48mIDA-DEN
5/29Thu
nonstopAllegiant Air
1h 42mDEN-IDA
$87
5/25Sun
nonstopAllegiant Air
1h 48mIDA-DEN
5/29Thu
nonstopAllegiant Air
1h 42mDEN-IDA
$95
5/22Thu
nonstopFrontier
1h 59mBOI-DEN
5/27Tue
nonstopFrontier
1h 57mDEN-BOI
$132
5/22Thu
nonstopFrontier
1h 59mBOI-DEN
5/25Sun
nonstopFrontier
1h 57mDEN-BOI
$133
5/27Tue
nonstopUnited Airlines
2h 05mBOI-DEN
6/4Wed
nonstopUnited Airlines
2h 01mDEN-BOI
$189
5/21Wed
nonstopUnited Airlines
1h 59mIDA-DEN
5/26Mon
nonstopUnited Airlines
1h 44mDEN-IDA
$189
5/28Wed
1 stopSouthwest
4h 55mBOI-DEN
6/4Wed
nonstopSouthwest
2h 00mDEN-BOI
$199
5/27Tue
nonstopSouthwest
1h 55mBOI-DEN
6/3Tue
2 stopsSouthwest
7h 20mDEN-BOI
$204
7/1Tue
1 stopDelta
6h 28mBOI-DEN
7/5Sat
1 stopDelta
4h 50mDEN-BOI
$209
7/25Fri
1 stopDelta
4h 51mIDA-DEN
7/28Mon
1 stopDelta
3h 24mDEN-IDA
$209

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Recent one-way flight deals

8/7Thu
nonstopFrontier
2h 00mBOI-DEN
$64
6/1Sun
nonstopFrontier
1h 58mBOI-DEN
$65
6/3Tue
1 stopAlaska Airlines
6h 26mBOI-DEN
$94
7/1Tue
nonstopSouthwest
1h 50mBOI-DEN
$95
6/3Tue
1 stopAlaska Airlines
5h 00mGEG-DEN
$98
6/3Tue
nonstopUnited Airlines
2h 20mGEG-DEN
$99
5/26Mon
nonstopSouthwest
1h 55mBOI-DEN
$106
7/4Fri
1 stopDelta
5h 28mGEG-DEN
$108
8/5Tue
1 stopDelta
7h 44mGEG-DEN
$109
8/9Sat
nonstopUnited Airlines
2h 17mGEG-DEN
$119

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Last minute flights from Idaho to Colorado

Last minute flight, train and bus deals

5/6Tue
multi-stopDelta
5h 26mSUN-DEN
5/9Fri
multi-stopDelta
6h 27mDEN-SUN
$297
5/2Fri
nonstopUnited Airlines
1h 59mIDA-DEN
5/5Mon
nonstopUnited Airlines
1h 46mDEN-IDA
$359
5/2Fri
multi-stopDelta
6h 04mIDA-DEN
5/5Mon
multi-stopDelta
4h 51mDEN-IDA
$379
5/6Tue
multi-stopAlaska Airlines
5h 57mBOI-DEN
5/7Wed
multi-stopAlaska Airlines
5h 16mDEN-BOI
$428
5/3Sat
multi-stopAlaska Airlines
5h 53mBOI-DEN
5/5Mon
multi-stopAlaska Airlines
6h 06mDEN-BOI
$541
5/6Tue
nonstopUnited Airlines
1h 59mBOI-DEN
5/7Wed
nonstopUnited Airlines
2h 02mDEN-BOI
$565
5/5Mon
nonstopSouthwest
1h 55mBOI-DEN
5/9Fri
nonstopSouthwest
1h 55mDEN-BOI
$572
5/5Mon
nonstopSouthwest
1h 55mBOI-DEN
5/9Fri
multi-stopSouthwest
7h 20mDEN-BOI
$575
5/6Tue
multi-stopAmerican Airlines
9h 08mBOI-DEN
5/7Wed
multi-stopAmerican Airlines
5h 19mDEN-BOI
$615
5/6Tue
multi-stopAmerican Airlines
9h 08mBOI-DEN
5/7Wed
multi-stopAmerican Airlines
10h 34mDEN-BOI
$620

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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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