Cheap flights from Idaho to Denver (DEN) from $41

This is the cheapest one-way flight price, found on 9/21. Prices may vary by date and flight preferences.
BOI — DEN
sep. 26 — oct. 31

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

Users have found that booking a flight from Idaho to Denver at least 60 days early can save you up to 35% on average compared to booking a flight this week. If booking 60 days before your flight isn’t an option for you, users have found flights from Idaho to Denver for as little as $378 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $457 for flights departing within the next 3 days.

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

January can be a great time to fly to Denver from Idaho with a flight ticket averaging about $354. Cheapflights users have found deals in the month of January for as cheap as $193. The most expensive prices can be found in the month of May.

When is the cheapest time to fly from Idaho to Denver (ID - DEN)?

When flying from Idaho to Denver, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Cheap Spirit Airlines flights from Idaho to Denver

Find some of the cheapest Spirit Airlines flights traveling from Idaho to Denver. Come back soon if you're not finding the exact deal you're looking for.

Cheap Delta flights from Idaho to Denver

Have a look at some of the cheapest available Delta flights departing from Idaho and landing in Denver. Deals are refreshing constantly so come back soon for more options.

Cheap Idaho to Denver flights in September & October 2023

The best prices found for Idaho to DEN flights for September, October
Listed are some of the best fares we've found on flights departing from Idaho to Denver in 2023. Check back soon for alternative fares.

Idaho to Denver 2023 flight deals

Cheap flights to Denver from Idaho found for this year
Listed are some of the best fares we've found on flights departing from Idaho to Denver in 2023. Check back soon for alternative fares.

Non-stop flights to Denver from Idaho

Save time with Idaho to Denver direct flight deals
For a shorter flight, select one of these non-stop flights from Idaho to Denver. Search for alternative flights from Idaho to Denver by utilizing the search form above.

Idaho to Denver flights leaving soon

Late deals on return flights to Denver from Idaho, departing today and this week
Users seeking a last-minute flight from Idaho to Denver should consider booking one of these fares. Users should examine the flight details to ensure there are no surprises.

One-way flights to Denver from Idaho

The cheapest one-way flights from Idaho to Denver
Take a look at some of the best available options we've come across on one-way flights from Idaho to Denver. Users needing a return flight from Idaho to Denver should utilize the search form above.

Find flights from Idaho to Denver within your budget

Use the slider to find flights from Idaho to Denver that fit your budget.

Fly from

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Fly to

Any airport

Budget

$68 - $212

Route

Depart

Return

Price

Boise Air Term. Gowen FldDenver Intl

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

sáb. 10/14

1 stop10h 54m

Denver Intl

lun. 10/16

1 stop11h 46m

Boise Air Term. Gowen FldDenver Intl

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

sáb. 10/14

1 stop6h 40m

Denver Intl

lun. 10/23

1 stop11h 46m

Boise Air Term. Gowen FldDenver Intl

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

mié. 11/8

1 stop10h 22m

Denver Intl

dom. 11/12

1 stop11h 56m

Boise Air Term. Gowen FldDenver Intl

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

jue. 10/5

1 stop13h 15m

Denver Intl

mié. 10/11

1 stop11h 46m

Boise Air Term. Gowen FldDenver Intl

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

sáb. 10/21

1 stop10h 22m

Denver Intl

sáb. 10/28

1 stop6h 48m

Boise Air Term. Gowen FldDenver Intl

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

mié. 11/1

1 stop6h 32m

Denver Intl

sáb. 11/4

1 stop6h 48m

Lewiston Nez Perce RgnlDenver Intl

LWS - DEN

LWSDEN

Lewiston Nez Perce Rgnl

mar. 12/5

1 stop5h 35m

Denver Intl

sáb. 12/9

1 stop6h 44m

Boise Air Term. Gowen FldDenver Intl

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

sáb. 10/21

Nonstop1h 54m

Denver Intl

sáb. 10/28

Nonstop1h 59m

Boise Air Term. Gowen FldDenver Intl

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

mié. 10/25

1 stop5h 29m

Denver Intl

mié. 11/1

2 stops11h 18m

Flights are sorted by cheapest first

Deals found on 9/20

Reviews of airlines servicing Denver

Read reviews from past customers who have flown Spirit Airlines, Delta and United Airlines from Idaho to Denver. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
1,393 reviews

Food

7.2

Crew

8.6

Comfort

8.0

Entertainment

7.2

Boarding

8.3

Overall

8.1

Reviews

1 / 10

Due to gate changes and poor announcing, I was unable to board my flight to Missoula. I received no refund. As a person who flies 3-5 times a year, god willing for another 40 years or so, I will strive to never fly Alaska Airlines again.

Alaska Airlines
8.1
Very good
1,393 reviews
Alaska Airlines
8.1
Very good
1,393 reviews

Food

7.2

Crew

8.6

Comfort

8.0

Entertainment

7.2

Boarding

8.3

Overall

8.1

Reviews

1 / 10

Due to gate changes and poor announcing, I was unable to board my flight to Missoula. I received no refund. As a person who flies 3-5 times a year, god willing for another 40 years or so, I will strive to never fly Alaska Airlines again.

Delta
7.9
Good
3,016 reviews
Alaska Airlines
8.1
Very good
1,393 reviews

Food

7.2

Crew

8.6

Comfort

8.0

Entertainment

7.2

Boarding

8.3

Overall

8.1

Reviews

1 / 10

Due to gate changes and poor announcing, I was unable to board my flight to Missoula. I received no refund. As a person who flies 3-5 times a year, god willing for another 40 years or so, I will strive to never fly Alaska Airlines again.

United Airlines
7.4
Good
1,887 reviews
Alaska Airlines
8.1
Very good
1,393 reviews

Food

7.2

Crew

8.6

Comfort

8.0

Entertainment

7.2

Boarding

8.3

Overall

8.1

Reviews

1 / 10

Due to gate changes and poor announcing, I was unable to board my flight to Missoula. I received no refund. As a person who flies 3-5 times a year, god willing for another 40 years or so, I will strive to never fly Alaska Airlines again.

American Airlines
7.2
Good
2,635 reviews
Alaska Airlines
8.1
Very good
1,393 reviews

Food

7.2

Crew

8.6

Comfort

8.0

Entertainment

7.2

Boarding

8.3

Overall

8.1

Reviews

1 / 10

Due to gate changes and poor announcing, I was unable to board my flight to Missoula. I received no refund. As a person who flies 3-5 times a year, god willing for another 40 years or so, I will strive to never fly Alaska Airlines again.

WestJet
7.2
Good
916 reviews
Alaska Airlines
8.1
Very good
1,393 reviews

Food

7.2

Crew

8.6

Comfort

8.0

Entertainment

7.2

Boarding

8.3

Overall

8.1

Reviews

1 / 10

Due to gate changes and poor announcing, I was unable to board my flight to Missoula. I received no refund. As a person who flies 3-5 times a year, god willing for another 40 years or so, I will strive to never fly Alaska Airlines again.

Related info for your journey

Useful info, stats and facts about Idaho to Denver flights.

What airport do you fly into for flights to Denver from Idaho?

Most people fly into Denver Intl (DEN) if they book a flight to Denver from Idaho. Denver Intl is conveniently located just 18.5 mi from Denver’s city center.

Can I find flights from Idaho to Denver for under $100 on Cheapflights?

Yes, there are multiple flights from Idaho to Denver for under $100. The cheapest flight booked recently is on Spirit Airlines for just $68, but on average you can expect to pay $110.

Are there nonstop flights from Idaho to Denver for under $200 on Cheapflights?

Cheapflights has at least 20 direct flights from Idaho to Denver under $200. A good price for a nonstop flight from Idaho to Denver is less than $234.

Are there last-minute flights available from Idaho to Denver for under $200?

There are currently 20+ open flights from Idaho to Denver within the next 7 days for less than $200.

What days are nonstop flights available from Idaho to Denver?

Nonstop flights can be found on the following days: Monday, Thursday, Friday, Saturday.

How popular is this Idaho to Denver flight route?

How many flights depart from Idaho to Denver on average per day?

6 flight departures from Idaho to Denver per day on average.
Afternoon (Noon - 6pm) - 100% of flight departures

How long is the flight from Idaho to Denver?

Departing from Idaho to Denver will take you 10h 54m. Idaho and Denver are separated by a distance of 651 mi.

What are the cheapest airlines to fly from Idaho to Denver one-way?

The cheapest airlines for a one-way flight from Idaho to Denver are Spirit Airlines ($41), United Airlines ($94), and Delta ($114).

What are the most popular routes from Idaho to Denver?

What are the most popular airlines that fly from Idaho to Denver?

What are the most reliable airlines from Idaho to Denver?

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Idaho to Denver on time: SkyWest Airlines (95%), United Airlines (84%), Air Canada (78%).

What are the cheapest flights from Idaho to Denver?

The cheapest flight price from Idaho to Denver is $108. On average you can expect to pay $879. The most popular route, (Spokane - Denver Intl), can usually be booked for $227.

What does BOI to DEN mean?

Boise Air Term. Gowen Fld Airport is BOI and Denver Intl Airport is DEN. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service. Hailey Sun Valley-Friedman Airport (SUN), Idaho Falls Fanning Field Airport (IDA), Lewiston Nez Perce Rgnl Airport (LWS), Pocatello Airport (PIH), Twin Falls Joslin Airport (TWF) are some additional IATA codes for airports related to your trip.

Departure points for flights from Idaho to Denver

Select to see more specific information for flights to Denver from all departure points in Idaho

Top 4 airlines flying from Idaho to Denver

The chart below displays the airlines Cheapflights users traveling from Idaho to Denver choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$95Average$195FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
American AirlinesCheapest$124Average$186FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapest$157Average$381FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$168Average$381FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Hourly flight availability from Idaho to Denver

See what time of day planes typically take off from Idaho to Denver
5%of flight departuresEarly morningMidnight to 6 am
38%of flight departuresMorning6 am to noon
57%of flight departuresAfternoonNoon to 6 pm
0%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM
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