Find Cheap Flights from Idaho to Denver International

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Wed 2/21
Wed 2/28
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Book cheap flights from Idaho to Denver International (round-trip)

Airports
Origin
Boise
$115
only
$115
Destination
Denver
$115
only
$115
Tue, Mar 27
BOI
DEN
1h 53m
Tue, Apr 3
DEN
BOI
2h 00m
Trip: 8 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 33877 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
MIA
ATL
Mediocre 3.6

The boarding went quickly and was well organized

That the price to take a small carryon was just as expensive as taking a large suitcase, ended up having to pay and extra $80 r/t for a small bag and I just that's standard for them. There were no barf bags in any seats, believe me everyone around us was looking as the person next to me was getting sick on the landing because it was crazy rough. When we finally were able to get an attendant over she was as rude as could be, I'm sure this sick person next to me was sorry she "inconvenienced" the crew member, if they just put bags in the seats pockets like every other airline this wouldn't have been an issue. The seats were very uncomfortable with no padding and not able to tilt. The tray tables were nonfunctional, too small and did not extend to get anywhere close enough to reach you. The plane ride itself felt like we were on a old school bus on a gravel road. I had a round trip ticket with frontier and both trips were equally as bad. I will never travel with them again, Most of us weren't even sure if we were going to survive take off with out the plan breaking or something.

DEN
ORD
Excellent 10.0

We got there ahead of schedule

PHX
MKE
Okay 4.0

Nothing

Everything

LAS
MSN
Okay 5.6

Quick service

Expensive bags and small amount of room on the plane

RSW
PHL
Okay 5.3

Cramped seating.

Fri, Apr 13
BOI
DEN
1h 48m
Sun, Apr 15
DEN
BOI
2h 00m
Trip: 3 days
Overall 0.0 Poor
Based on 0 reviews
Sat, May 19
BOI
DEN
2h 05m
Sat, May 26
DEN
BOI
2h 05m
Trip: 8 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 44 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
BOI
DEN
Mediocre 2.0

That we got to Little Rock early

I had ordered ginger rail and the lady brought me a Diet Coke I told her I don't like Diet Coke because I don't drink Coke and she said I thought that's what you want it now you have to hold onto it until they come back and pick up the trash and she never brought me the ginger rail to drink she walked away and I never drank nothing on the flight back to Little Rock that lady was so rude

BOI
DEN
Good 6.6

Crew

I think that after first class they should load the plane from the last seat forward for ease of getting to the back seats

BOI
DEN
Okay 5.3

Charged 50.00 for check bags,when that was included in the online purchase,not happy and probably will not use either again!

BOI
DEN
Excellent 10.0

More fights to choose

Could not choose the seat at the time booking

BOI
DEN
Mediocre 3.3

Friendly crew.

Had a mechanical issue we were told didn't need fixed to fly the plane. Took 1 hour and 20 minutes to complete safety checklist so we could take off. We missed our connecting flight to Cancun.

Tue, Apr 3
BOI
DEN
1h 53m
Thu, Apr 12
DEN
BOI
2h 00m
Trip: 10 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 33877 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
MCO
SJU
Good 7.0

Low prices, departures and arrivals with very specific schedules On Time.

There's no food or drinking options, if you have any carry-on you'll have to pay $45.

ORD
DEN
Mediocre 2.0

The flight was delayed

MIA
ATL
Mediocre 3.6

The boarding went quickly and was well organized

That the price to take a small carryon was just as expensive as taking a large suitcase, ended up having to pay and extra $80 r/t for a small bag and I just that's standard for them. There were no barf bags in any seats, believe me everyone around us was looking as the person next to me was getting sick on the landing because it was crazy rough. When we finally were able to get an attendant over she was as rude as could be, I'm sure this sick person next to me was sorry she "inconvenienced" the crew member, if they just put bags in the seats pockets like every other airline this wouldn't have been an issue. The seats were very uncomfortable with no padding and not able to tilt. The tray tables were nonfunctional, too small and did not extend to get anywhere close enough to reach you. The plane ride itself felt like we were on a old school bus on a gravel road. I had a round trip ticket with frontier and both trips were equally as bad. I will never travel with them again, Most of us weren't even sure if we were going to survive take off with out the plan breaking or something.

PHX
MKE
Okay 4.0

Nothing

Everything

LAS
AUS
Mediocre 2.0

Booked with kayak. Reservation came from KIwi.com? Frontier flight was canceled for maintenance. No email notification that I was automatically rebooked onto United flight by frontier. 4 hrs spent trying to get through to frontier booking agent to find out. No way to call internation number at kiwi.com. Will NOT ever book again with kayak.

Tue, Apr 10
BOI
DEN
1h 53m
Thu, Apr 19
DEN
BOI
2h 00m
Trip: 10 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 33877 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
MIA
ATL
Mediocre 3.6

The boarding went quickly and was well organized

That the price to take a small carryon was just as expensive as taking a large suitcase, ended up having to pay and extra $80 r/t for a small bag and I just that's standard for them. There were no barf bags in any seats, believe me everyone around us was looking as the person next to me was getting sick on the landing because it was crazy rough. When we finally were able to get an attendant over she was as rude as could be, I'm sure this sick person next to me was sorry she "inconvenienced" the crew member, if they just put bags in the seats pockets like every other airline this wouldn't have been an issue. The seats were very uncomfortable with no padding and not able to tilt. The tray tables were nonfunctional, too small and did not extend to get anywhere close enough to reach you. The plane ride itself felt like we were on a old school bus on a gravel road. I had a round trip ticket with frontier and both trips were equally as bad. I will never travel with them again, Most of us weren't even sure if we were going to survive take off with out the plan breaking or something.

DEN
ORD
Excellent 10.0

We got there ahead of schedule

LAS
MSN
Okay 5.6

Quick service

Expensive bags and small amount of room on the plane

LAS
AUS
Mediocre 2.0

Booked with kayak. Reservation came from KIwi.com? Frontier flight was canceled for maintenance. No email notification that I was automatically rebooked onto United flight by frontier. 4 hrs spent trying to get through to frontier booking agent to find out. No way to call internation number at kiwi.com. Will NOT ever book again with kayak.

ORD
DEN
Mediocre 2.0

The flight was delayed

Tue, May 8
BOI
DEN
1h 52m
Tue, May 22
DEN
BOI
1h 59m
Trip: 15 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 33877 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
ORD
DEN
Mediocre 2.0

The flight was delayed

MIA
ATL
Mediocre 3.6

The boarding went quickly and was well organized

That the price to take a small carryon was just as expensive as taking a large suitcase, ended up having to pay and extra $80 r/t for a small bag and I just that's standard for them. There were no barf bags in any seats, believe me everyone around us was looking as the person next to me was getting sick on the landing because it was crazy rough. When we finally were able to get an attendant over she was as rude as could be, I'm sure this sick person next to me was sorry she "inconvenienced" the crew member, if they just put bags in the seats pockets like every other airline this wouldn't have been an issue. The seats were very uncomfortable with no padding and not able to tilt. The tray tables were nonfunctional, too small and did not extend to get anywhere close enough to reach you. The plane ride itself felt like we were on a old school bus on a gravel road. I had a round trip ticket with frontier and both trips were equally as bad. I will never travel with them again, Most of us weren't even sure if we were going to survive take off with out the plan breaking or something.

PHL
SJU
Good 6.0

boarding and treatment by staff wad excellent

$3 for a cup of coffee is outrageous.... other airlines at least include beverages and a snack (peanuts etc).

LAS
AUS
Mediocre 2.0

Booked with kayak. Reservation came from KIwi.com? Frontier flight was canceled for maintenance. No email notification that I was automatically rebooked onto United flight by frontier. 4 hrs spent trying to get through to frontier booking agent to find out. No way to call internation number at kiwi.com. Will NOT ever book again with kayak.

PHX
MKE
Okay 4.0

Nothing

Everything

Sat, Apr 14
BOI
DEN
1h 48m
Sun, Apr 15
DEN
BOI
2h 00m
Trip: 2 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Mar 27
BOI
DEN
1h 53m
Sun, Apr 1
DEN
BOI
2h 00m
Trip: 6 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 33877 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
MIA
ATL
Mediocre 3.6

The boarding went quickly and was well organized

That the price to take a small carryon was just as expensive as taking a large suitcase, ended up having to pay and extra $80 r/t for a small bag and I just that's standard for them. There were no barf bags in any seats, believe me everyone around us was looking as the person next to me was getting sick on the landing because it was crazy rough. When we finally were able to get an attendant over she was as rude as could be, I'm sure this sick person next to me was sorry she "inconvenienced" the crew member, if they just put bags in the seats pockets like every other airline this wouldn't have been an issue. The seats were very uncomfortable with no padding and not able to tilt. The tray tables were nonfunctional, too small and did not extend to get anywhere close enough to reach you. The plane ride itself felt like we were on a old school bus on a gravel road. I had a round trip ticket with frontier and both trips were equally as bad. I will never travel with them again, Most of us weren't even sure if we were going to survive take off with out the plan breaking or something.

LAS
MSN
Okay 5.6

Quick service

Expensive bags and small amount of room on the plane

LAS
AUS
Mediocre 2.0

Booked with kayak. Reservation came from KIwi.com? Frontier flight was canceled for maintenance. No email notification that I was automatically rebooked onto United flight by frontier. 4 hrs spent trying to get through to frontier booking agent to find out. No way to call internation number at kiwi.com. Will NOT ever book again with kayak.

RSW
PHL
Okay 5.3

Cramped seating.

MIA
CLE
Excellent 10.0

Funny flight crew who were very attentive and we made it back nearly 30 min early!

Nothing

Sun, Apr 15
BOI
DEN
1h 53m
Thu, Apr 19
DEN
BOI
1h 52m
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Mar 27
BOI
DEN
1h 53m
Sun, Apr 1
DEN
BOI
2h 00m
Trip: 6 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 33877 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
PHL
SJU
Good 6.0

boarding and treatment by staff wad excellent

$3 for a cup of coffee is outrageous.... other airlines at least include beverages and a snack (peanuts etc).

MIA
CLE
Excellent 10.0

Funny flight crew who were very attentive and we made it back nearly 30 min early!

Nothing

ORD
DEN
Mediocre 2.0

The flight was delayed

MIA
ATL
Mediocre 3.6

The boarding went quickly and was well organized

That the price to take a small carryon was just as expensive as taking a large suitcase, ended up having to pay and extra $80 r/t for a small bag and I just that's standard for them. There were no barf bags in any seats, believe me everyone around us was looking as the person next to me was getting sick on the landing because it was crazy rough. When we finally were able to get an attendant over she was as rude as could be, I'm sure this sick person next to me was sorry she "inconvenienced" the crew member, if they just put bags in the seats pockets like every other airline this wouldn't have been an issue. The seats were very uncomfortable with no padding and not able to tilt. The tray tables were nonfunctional, too small and did not extend to get anywhere close enough to reach you. The plane ride itself felt like we were on a old school bus on a gravel road. I had a round trip ticket with frontier and both trips were equally as bad. I will never travel with them again, Most of us weren't even sure if we were going to survive take off with out the plan breaking or something.

DEN
ONT
Okay 4.0

The flight itself was fine

I used to love frontier but now everything from baggage policies to checking in feel like a huge hassle

Tue, Mar 27
BOI
DEN
5h 25m
Sun, Apr 1
DEN
BOI
2h 00m
Trip: 6 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Mar 29
BOI
DEN
1h 53m
Tue, Apr 3
DEN
BOI
2h 00m
Trip: 6 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 33877 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
LAS
MSN
Okay 5.6

Quick service

Expensive bags and small amount of room on the plane

RSW
PHL
Okay 5.3

Cramped seating.

MCO
SJU
Good 7.0

Low prices, departures and arrivals with very specific schedules On Time.

There's no food or drinking options, if you have any carry-on you'll have to pay $45.

LAS
AUS
Mediocre 2.0

Booked with kayak. Reservation came from KIwi.com? Frontier flight was canceled for maintenance. No email notification that I was automatically rebooked onto United flight by frontier. 4 hrs spent trying to get through to frontier booking agent to find out. No way to call internation number at kiwi.com. Will NOT ever book again with kayak.

MIA
CLE
Excellent 10.0

Funny flight crew who were very attentive and we made it back nearly 30 min early!

Nothing

Sun, Apr 1
BOI
DEN
1h 53m
Thu, Apr 5
DEN
BOI
2h 00m
Trip: 5 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 33877 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
LAS
MSN
Okay 5.6

Quick service

Expensive bags and small amount of room on the plane

LAS
AUS
Mediocre 2.0

Booked with kayak. Reservation came from KIwi.com? Frontier flight was canceled for maintenance. No email notification that I was automatically rebooked onto United flight by frontier. 4 hrs spent trying to get through to frontier booking agent to find out. No way to call internation number at kiwi.com. Will NOT ever book again with kayak.

PHX
DEN
Okay 4.0

Crew was friendly

Late departure

PHL
SJU
Good 6.0

boarding and treatment by staff wad excellent

$3 for a cup of coffee is outrageous.... other airlines at least include beverages and a snack (peanuts etc).

MCO
SJU
Good 7.0

Low prices, departures and arrivals with very specific schedules On Time.

There's no food or drinking options, if you have any carry-on you'll have to pay $45.

Tue, Apr 3
BOI
DEN
3h 47m
Tue, Apr 10
DEN
BOI
2h 00m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Apr 3
BOI
DEN
1h 53m
Tue, Apr 10
DEN
BOI
2h 00m
Trip: 8 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 33877 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
LAS
AUS
Mediocre 2.0

Booked with kayak. Reservation came from KIwi.com? Frontier flight was canceled for maintenance. No email notification that I was automatically rebooked onto United flight by frontier. 4 hrs spent trying to get through to frontier booking agent to find out. No way to call internation number at kiwi.com. Will NOT ever book again with kayak.

RSW
PHL
Okay 5.3

Cramped seating.

MIA
ATL
Mediocre 3.6

The boarding went quickly and was well organized

That the price to take a small carryon was just as expensive as taking a large suitcase, ended up having to pay and extra $80 r/t for a small bag and I just that's standard for them. There were no barf bags in any seats, believe me everyone around us was looking as the person next to me was getting sick on the landing because it was crazy rough. When we finally were able to get an attendant over she was as rude as could be, I'm sure this sick person next to me was sorry she "inconvenienced" the crew member, if they just put bags in the seats pockets like every other airline this wouldn't have been an issue. The seats were very uncomfortable with no padding and not able to tilt. The tray tables were nonfunctional, too small and did not extend to get anywhere close enough to reach you. The plane ride itself felt like we were on a old school bus on a gravel road. I had a round trip ticket with frontier and both trips were equally as bad. I will never travel with them again, Most of us weren't even sure if we were going to survive take off with out the plan breaking or something.

PHL
SJU
Good 6.0

boarding and treatment by staff wad excellent

$3 for a cup of coffee is outrageous.... other airlines at least include beverages and a snack (peanuts etc).

DEN
ORD
Excellent 10.0

We got there ahead of schedule

Wed, Apr 4
BOI
DEN
3h 47m
Thu, Apr 12
DEN
BOI
2h 00m
Trip: 9 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Apr 5
BOI
DEN
1h 53m
Thu, Apr 12
DEN
BOI
2h 00m
Trip: 8 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 33877 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
PHX
DEN
Okay 4.0

Crew was friendly

Late departure

ORD
DEN
Mediocre 2.0

The flight was delayed

RSW
PHL
Okay 5.3

Cramped seating.

PHX
MKE
Okay 4.0

Nothing

Everything

LAS
AUS
Mediocre 2.0

Booked with kayak. Reservation came from KIwi.com? Frontier flight was canceled for maintenance. No email notification that I was automatically rebooked onto United flight by frontier. 4 hrs spent trying to get through to frontier booking agent to find out. No way to call internation number at kiwi.com. Will NOT ever book again with kayak.

Thu, Apr 5
BOI
DEN
3h 47m
Tue, Apr 10
DEN
BOI
2h 00m
Trip: 6 days
Overall 0.0 Poor
Based on 0 reviews
Sun, Apr 8
BOI
DEN
1h 53m
Thu, Apr 12
DEN
BOI
2h 00m
Trip: 5 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 33877 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
PHX
DEN
Okay 4.0

Crew was friendly

Late departure

LAS
AUS
Mediocre 2.0

Booked with kayak. Reservation came from KIwi.com? Frontier flight was canceled for maintenance. No email notification that I was automatically rebooked onto United flight by frontier. 4 hrs spent trying to get through to frontier booking agent to find out. No way to call internation number at kiwi.com. Will NOT ever book again with kayak.

MIA
CLE
Excellent 10.0

Funny flight crew who were very attentive and we made it back nearly 30 min early!

Nothing

LAS
MSN
Okay 5.6

Quick service

Expensive bags and small amount of room on the plane

PHL
SJU
Good 6.0

boarding and treatment by staff wad excellent

$3 for a cup of coffee is outrageous.... other airlines at least include beverages and a snack (peanuts etc).

Fri, Apr 6
BOI
DEN
3h 47m
Thu, Apr 12
DEN
BOI
2h 00m
Trip: 7 days
Overall 0.0 Poor
Based on 0 reviews

Idaho to Denver International Flight Information

Flights Arrive in Denver International
Flights Depart from Idaho
Flight Price $115
Airlines Frontier, United
*
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