IAG - DEN

Find Cheap Flights from Niagara Falls to Denver

Round-trip
Economy
Niagara Falls (IAG)
Denver Intl
Tue 7/16
Tue 7/23
Any month
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Niagara Falls to Denver Flight Information

Flights Arrive in Denver Intl
Flights Depart from Niagara Falls
Flight Price $342
Distance 1,345 miles
Airlines Spirit Airlines

FAQs for Booking Niagara Falls to Denver Flights

How long does a flight from Niagara Falls to Denver take?
There are no direct flights for this route listed on KAYAK, the shortest multi-flight duration is 9h 52m.
Which airlines provide the cheapest flights from Niagara Falls to Denver?
In the past 3 days, the cheapest round-trip tickets were found on Spirit Airlines ($342)
Do I need a passport to fly between Niagara Falls and Denver?
No.
What’s the cheapest day of the week to fly Niagara Falls to Denver?
For Niagara Falls to Denver, Sunday is the cheapest day to fly on average and Wednesday is the most expensive. Flying from Denver back to Niagara Falls, the best deals are generally found on Thursday, with Friday being the most expensive.
Which airports will I be using when flying from Niagara Falls to Denver?
When flying out of Niagara Falls you will be using Niagara Falls, often referred to as Niagara Falls Airport. You will be landing at Denver Intl, also known as Denver Airport.

Book cheap flights from Niagara Falls to Denver (round-trip)

Airports
Origin
Niagara Falls
$342
only
$342
Destination
Denver
$342
only
$342
Sun, Sep 8
IAG
Niagara Falls
DEN
Denver Intl
22h 39m
Fri, Sep 13
DEN
Denver Intl
IAG
Niagara Falls
11h 19m
Trip: 6 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 59,283 reviews
Overall
5.8
Boarding
6.1
Comfort
5.4
Crew
6.5
Entertainment
4.6
Food
4.7
LAX
LAS
Okay 5.6

Pros: The crew was nice

Cons: Allowing me to bring a carry on

ATL
DFW
Excellent 10.0

Pros: Clean plane!

Cons: Would have liked the seats to recline but ok for the price.

FLL
ORD
Excellent 8.4

Cons: I’m 6 foot tall. I should have gotten a seat with more leg room. The seats are super cramped.

LAX
DFW
Okay 5.0

Pros: unfortunately, the attendants had to deal with some problem customers on board. However, they were very professional, even when they had to be stern.

Cons: All other airlines I've been on board had reclining seats and complimentary snacks. Also, the baggage weight limit for Spirit is 40lbs, while other airlines have a 50lb limit. I had to pay extra for my bag that was under 50lbs.

MCI
LAS
Excellent 9.2

Pros: The crew was very nice and friendly! Very professional as well.

Cons: Snack choices were not that great. Something like cheese and crackers maybe?

Sun, Aug 11
IAG
Niagara Falls
DEN
Denver Intl
10h 55m
Tue, Aug 20
DEN
Denver Intl
IAG
Niagara Falls
12h 24m
Trip: 10 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 59,283 reviews
Overall
5.8
Boarding
6.1
Comfort
5.4
Crew
6.5
Entertainment
4.6
Food
4.7
FLL
PHL
Mediocre 2.0

Pros: Nothing-- because the plane left without us.

Cons: Spirit should not be allowed to sell tickets with too short of a connection time than is possible to make if an airport forces you to go through customs between connections. They should also offer reasonable solutions for problems that are THEIR fault-- not just asked passengers to pay additional.

LAS
OAK
Mediocre 3.0

Pros: Horrible, horrible, horrible in all ways. Unreasonably aggressive boarding staff, very disorganized and chaotic. Dirty, uncomfortable seats, 4 delayed boardings and departures in a row - will never fly Spirit again.

Cons: Virtually everything.

MSP
IAH
Good 7.0

Pros: It was an easy process and no hiccups at all. Crew was friendly.

Cons: Spirit needs more room with seats.

SEA
LAS
Mediocre 2.0

Pros: Nothing

Cons: Everything

DTW
AUS
Okay 4.0

Cons: Went from an expected 7 hr layover to an unexpected 12 hour layover

Thu, Aug 15
IAG
Niagara Falls
DEN
Denver Intl
10h 55m
Tue, Aug 20
DEN
Denver Intl
IAG
Niagara Falls
12h 24m
Trip: 6 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 59,283 reviews
Overall
5.8
Boarding
6.1
Comfort
5.4
Crew
6.5
Entertainment
4.6
Food
4.7
AUA
FLL
Okay 4.4

Pros: Our flight boarded and landed on time.

Cons: Seat comfort, complimentary snack and drink would be great even if it was just water, flight attendants were not very friendly. Not the crew on our planes fault, but we were stuck taxiing for over an hour...nearly missed our connection, checked bag didn't make connection.

ORD
LAX
Mediocre 3.5

Pros: Nothing

Cons: Not be delayed for 4 hours. Spirit should compensate me. I left work early only to spend my entire evening at O’Hare as they changed the departure time 6 times because of a mechanical problem with the plane

BOS
MCO
Okay 5.0

Pros: The crew was great. The seats were moderately comfortable.

Cons: At least we could get water, coffee or soft drink.

DEN
MCO
Excellent 8.0

Pros: Good legroom, they waited for the late passengers(it wasn’t just me!)

Cons: Free bev

CLE
DFW
Mediocre 2.0

Cons: Flight delayed. Barely any leg room. Very uncomfortable.

Sun, Aug 11
IAG
Niagara Falls
DEN
Denver Intl
10h 55m
Mon, Aug 19
DEN
Denver Intl
IAG
Niagara Falls
14h 11m
Trip: 9 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 59,283 reviews
Overall
5.8
Boarding
6.1
Comfort
5.4
Crew
6.5
Entertainment
4.6
Food
4.7
LAX
LAS
Okay 5.6

Pros: The crew was nice

Cons: Allowing me to bring a carry on

ORD
DFW
Mediocre 2.5

Pros: No it was all pretty bad. i realize its a cheap airline but i fly them all the time.

Cons: customer service, appropriate staffing, enough leg room for humans, professionalism, etc

IAH
MSP
Mediocre 3.0

Pros: Crew was friendly

Cons: There were not enough agents at ticket counter to support the needs of passengers. Lines were unorganized and agents kept pushing us off to another line or agent. Once we got to one, she kept talking to her friend agent next to her and gave me really short annoyed answers when I needed help.

MSP
IAH
Good 7.0

Pros: It was an easy process and no hiccups at all. Crew was friendly.

Cons: Spirit needs more room with seats.

LAS
DFW
Excellent 10.0

Pros: Smooth flight at times you couldn’t tell you were moving it was so smooth

Cons: Nothing

Thu, Aug 15
IAG
Niagara Falls
DEN
Denver Intl
10h 55m
Mon, Aug 19
DEN
Denver Intl
IAG
Niagara Falls
14h 11m
Trip: 5 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 59,283 reviews
Overall
5.8
Boarding
6.1
Comfort
5.4
Crew
6.5
Entertainment
4.6
Food
4.7
LAX
FLL
Good 6.0

Cons: Cabin crew telling people they need to shut it and sleep when it’s a red eye flight.

DTW
AUS
Okay 4.0

Cons: Went from an expected 7 hr layover to an unexpected 12 hour layover

MCO
BOS
Excellent 9.5

Pros: The Crew Was Amazing and the flight was on time.

Cons: The seats are very uncomfortable because they are to straighten up and at least they should not charge for sodas or water but other then that it was a great flight ✈️

LAS
OAK
Mediocre 3.0

Pros: Horrible, horrible, horrible in all ways. Unreasonably aggressive boarding staff, very disorganized and chaotic. Dirty, uncomfortable seats, 4 delayed boardings and departures in a row - will never fly Spirit again.

Cons: Virtually everything.

LAS
LAX
Good 7.6

Pros: Crew was great

Cons: Offer free drinks and not so strict on extra payment for carry ons

Thu, Jul 18
IAG
Niagara Falls
DEN
Denver Intl
23h 24m
Tue, Jul 23
DEN
Denver Intl
IAG
Niagara Falls
12h 27m
Trip: 6 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 59,283 reviews
Overall
5.8
Boarding
6.1
Comfort
5.4
Crew
6.5
Entertainment
4.6
Food
4.7
DEN
DFW
Excellent 8.6

Pros: Price

DTW
AUS
Okay 4.0

Cons: Went from an expected 7 hr layover to an unexpected 12 hour layover

FLL
SJU
Excellent 10.0

Pros: Yes the crew was amazing.

LAX
DFW
Okay 5.0

Pros: unfortunately, the attendants had to deal with some problem customers on board. However, they were very professional, even when they had to be stern.

Cons: All other airlines I've been on board had reclining seats and complimentary snacks. Also, the baggage weight limit for Spirit is 40lbs, while other airlines have a 50lb limit. I had to pay extra for my bag that was under 50lbs.

BOS
LAS
Good 6.5

Pros: Safe travels. Good crew.

Cons: Comfort is not good at all.

Wed, Jul 17
IAG
Niagara Falls
DEN
Denver Intl
9h 52m
Tue, Jul 23
DEN
Denver Intl
IAG
Niagara Falls
12h 27m
Trip: 7 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 59,283 reviews
Overall
5.8
Boarding
6.1
Comfort
5.4
Crew
6.5
Entertainment
4.6
Food
4.7
FLL
CUN
Mediocre 2.0

Cons: Everything honestly. The clarity of communication was absolutely terrible. We were strung along for 6 hours about a delay they knew was not going to be short. They led us to believe it would be a few hours even though they knew the had no crew to fly the inbound flight. Boarding process was amateur.

LAS
MCI
Excellent 9.3

Pros: Boarding was super fast. The crew was nice and friendly.

Cons: It’s a little cramped but that’s to be expected. Food choices are slim as well.

IAH
CUN
Excellent 10.0

Cons: Free snack

SJU
FLL
Mediocre 2.3

Pros: The price

Cons: Communication. I did not find out that our flights was delayed until after departure time. However the staff knew and just did not tell us. The seats were terrible. Boarding was ridiculous since everyone wanted to be the first one on the plane. Overall poor experience. Won’t book with them again

DEN
MCO
Excellent 8.0

Pros: Good legroom, they waited for the late passengers(it wasn’t just me!)

Cons: Free bev

Thu, Jun 27
IAG
Niagara Falls
DEN
Denver Intl
10h 55m
Tue, Jul 2
DEN
Denver Intl
IAG
Niagara Falls
12h 27m
Trip: 6 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 59,283 reviews
Overall
5.8
Boarding
6.1
Comfort
5.4
Crew
6.5
Entertainment
4.6
Food
4.7
FLL
CUN
Mediocre 2.0

Cons: Everything honestly. The clarity of communication was absolutely terrible. We were strung along for 6 hours about a delay they knew was not going to be short. They led us to believe it would be a few hours even though they knew the had no crew to fly the inbound flight. Boarding process was amateur.

FLL
PHL
Mediocre 2.0

Pros: Nothing-- because the plane left without us.

Cons: Spirit should not be allowed to sell tickets with too short of a connection time than is possible to make if an airport forces you to go through customs between connections. They should also offer reasonable solutions for problems that are THEIR fault-- not just asked passengers to pay additional.

BOS
FLL
Good 6.4

Pros: Quick boarding, fast departure

Cons: WiFi or entertainment

CLE
DFW
Mediocre 2.0

Cons: Flight delayed. Barely any leg room. Very uncomfortable.

FLL
DEN
Okay 4.4

Pros: Crew was okay.

Cons: Seat comfort gets a big

Wed, Aug 21
IAG
Niagara Falls
DEN
Denver Intl
34h 40m
Tue, Aug 27
DEN
Denver Intl
IAG
Niagara Falls
12h 24m
Trip: 7 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 59,283 reviews
Overall
5.8
Boarding
6.1
Comfort
5.4
Crew
6.5
Entertainment
4.6
Food
4.7
BOS
MCO
Okay 5.0

Pros: The crew was great. The seats were moderately comfortable.

Cons: At least we could get water, coffee or soft drink.

TPA
MSY
Excellent 9.0

Pros: Crew was super nice!!

Cons: Entertainment

BWI
FLL
Excellent 9.0

Cons: Deboarding took too long

LAS
LAX
Good 7.6

Pros: Crew was great

Cons: Offer free drinks and not so strict on extra payment for carry ons

FLL
DFW
Excellent 10.0

Pros: The crew was awesome!!!

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