DEN - IAH

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DEN — IAH
Sep 23 — Sep 301
Round-trip
1 adult
Economy
0 bags
From?
To?
Thu 9/23
Thu 9/30

Good to know

Low season

AugustBest time to beat the crowds with an average 44% drop in price.

High season

NovemberMost popular time to fly with an average 33% increase in price.

Average price round-trip

$141(avg. price over the last 2 weeks)

Good deal round-trip

$90or less

Good deal one-way

$56or less

When to book flights from Denver to Houston

Estimated round-trip price
Average price per month
Flight prices as travel date approaches

Top tips for finding a cheap flight

  • Looking for a cheap flight? 25% of our users found flights on this route for $56 or less one-way and $90 or less round-trip.
  • The cheapest flight from Denver to Houston was found 18 days before departure, on average.
  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be October, November and December. The cheapest month to fly is August.
  • Morning departure is around 18% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for booking Denver to Houston flights

  • United Airlines, Air Canada and Air New Zealand have all waived their change and cancellation fees on flights from Denver Intl to Houston George Bush Intcntl. Confirm policies on booking site.

  • The average nonstop flight takes 2h 20m, covering a distance of 862 miles.

  • There are usually 80 direct flights each day leaving Denver in the direction of Houston, for a total of 562 flights weekly.

  • The cheapest return flight ticket from Denver to Houston found by KAYAK users in the last 72 hours was for $36 on Spirit Airlines, followed by Frontier ($46). One-way flight deals have also been found from as low as $17 on Spirit Airlines and from $25 on Frontier.

  • No

  • The airlines most regularly connecting Denver to Houston are United Airlines (23 flights per day), Air Canada (22 flights per day), and Air New Zealand (22 flights per day).

  • Your flight ticket price will generally be cheaper if you fly to Houston on a Saturday and more expensive on a Friday. On your return trip to Denver, you should consider flying back on a Saturday, and avoid Thursdays for better deals.

  • When flying out of Denver you will be using Denver Intl. You will be landing at Houston, also known as Houston George Bush Intcntl.

  • 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 Denver to Houston.

  • KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Houston from Denver is likely to change within 7 days, so travelers know whether to wait or book now.

  • 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 to Houston with an airline and back to Denver with another airline.

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

Top 3 airlines serving Denver Intl to Houston George Bush Intcntl

Scores according to KAYAK customer reviews
7.0
United AirlinesOverall score based on 68497 reviews
7.4Boarding
6.9Comfort
7.7Crew
6.5Entertainment
6.5Food
Airline reviews

Pros: I really liked American Airlines and delta for picking up the slack for United
Cons: We could have got on 1 United flight. Every flight by United was either canceled or delayed to the point that forced us to miss our connection. Out of 4 originally booked United flights we made zero. We had to be out on delta and American to make our trip happen. Never again United

Read more about United Airlines

Pros: I really liked American Airlines and delta for picking up the slack for United
Cons: We could have got on 1 United flight. Every flight by United was either canceled or delayed to the point that forced us to miss our connection. Out of 4 originally booked United flights we made zero. We had to be out on delta and American to make our trip happen. Never again United

Pros: The cabin temperature was hot before and during the flight.
Cons: Cabin temp.

Pros: Everything about the 787. Very comfortable and pleasant
Cons: Again, United is not enforcing its own COVID restrictions. That’s gotta stop

Cons: Plane was full!

Cons: Higher Priced seating was left empty and people were not spaced properly in the cheap seats in the back despite the extra room on board at takeoff.

Cons: It would have been nice to have all the immigration forms necessary and a pen to fill them out. If you aren’t going to provide those please notify passengers in advance.

Pros: We like the boarding according to row n., which limits the contact with other people.
Cons: The plane was full, which means no physical distancing was possible.

Cons: Way too crowded on the plane

Cons: We turned around mid flight and had to come back to Houston :( we stayed at a holiday inn and didn’t get another flight out for 24 hours.

Cons: bad

Pros: Flight crew was great, seats were great.
Cons: Checking in was a nightmare with rude and nonchalant United agents who seemed oblivious to the late/canceled flights pandemonium with passengers scrambling to get questions answered about the rebooking possibilities being offered. I got a text message at 4:30AM about delay and rebooking opp.

Cons: Dang the seats are just small in the coach area. Great smooth flight and my bag arrived where it was supposed to be. Cant complain there

Pros: Amazing job get my canceled flight reschedule for my nanny memorial. It was amazing helpful staff!
Cons: Way to fix flight after it cancelled

Pros: Crew and staff were professional.
Cons: 3.5 hour mechanical delay with no offer for a meal voucher or complimentary snack or drink when flight finally took off.

Pros: Staff was all friendly and exhibited positive and helpful attitudes. I also think the price and route was an excellent deal for this flight. It was actually such a good deal, it’s the main reason I even went.
Cons: I think the baggage restrictions thing is really slimey and a shameful scam. I actually wouldn’t have minded paying around $50 more for my ticket and hand the bag included than be misled into thinking I could take luggage and finding out after it’s too late that I have to pay for my luggage. I think it’s a really sleazy business tactic (akin to resort fees). Fortunately for me however, I don’t travel with luggage so it doesn’t directly affect me. Still think it’s. Shitty way to do business though.

Pros: Great staff and flight overall
Cons: Delayed 40+ minutes resulting in missing next flight. Stood in customer service line for 3 hours only to realize no meal or hotel vouchers provided aside from a discount provided by United for hotel booking.

Pros: Landed early
Cons: No wifi or substantial snacks/dinner. Paid for bag

Cons: Fellow passengers; too many howling kids with clueless parents

Pros: Nothing
Cons: Never made it. Stuck in Denver.

Pros: We got to our destination.
Cons: I am not a large person and yet I felt squeezed. There isn’t enough room to get out of one’s seat even when everyone in the aisle vacates.

Cons: As usual, United manged to mess up something new and different. This time, they couldn't get the plane towed from the hangar to the gate in time for an on time departure. The ground staff was even annoyed by this development, and the plane finally appeared about the time we were supposed to be leaving. To their credit, the gate staff tried to keep getting updates and passing them along, but had little luck. Fortunately I did not miss my connection in Houston but I'm not sure the same was true for everybody. When we arrived, we sat for 10 minutes waiting for our gate to open, which the crew interestingly blamed on the delays caused by the rain. Funny, the only delayed flight on the screens in the terminal was odd ours. The rest of my trip was flawless. I'm sorry for Air New Zealand that they have to rely on United to gather passengers for them in the USA.

Pros: Boarding and checking in was great..
Cons: there where some issues with the airplane from the beginning we were inform that the seat belt and cigarette icons lights were no working . but then they have to call technicians to do a recheck on the plane so there more issues no just about the lights we have to stay in the plane until fixed some people lost their connection flights. the terminal where we landed was a long walk to customs then pick up bags and transport to the next terminal no enough time to eat between flights. to stressful .

Cons: My friend and I have taken our hiking packs to Alaska, California, Washington, and all along the East coast. Never have we been asked to check our packs. I was mostly surprised, at first. Once I was seated a man in front of me had his hiking pack and two ukuleles in their cases, neither of which could fit under his seat. That's when I became frustrated. O This plane sucks: our knees were slammed into the seat in front of us because the chairs are so close together. No USB plugs. Plane was dirty, scuff marks on the wall and ceiling. There was paper in the pouch that looked like a mouse had chewed on it.

Pros: Fast flight
Cons: Small chair

Pros: Economy plus comfort
Cons: Paying extra for economy plus. One and one half hours late.

Pros: The space of the plane since I volunteered to be at the emergency door I felt comfortable...
Cons: Not giving me my seat number because my ticket was not a standby ticket and I seem to think that the agent thought that I was on standby but I have to go to him several time to make him understand that my ticket had a confirmation number and I did a reserve and I needed a seat number it was not on standby when he checked it he said okay and I also explained to him that I was a military personnel ... The agent should treat us with respect you should have gave me a better information and just throw me away then going back to him several times for the correct solution...

Cons: lack of info on flight delays. missed connection. no help. paid more for earlier flight then got put on late flight tht was $200 cheaper ...NO REFUND

Pros: On time.
Cons: New looking plane but the TVs behind all the chairs were locked without a credit card. The new chairs looked great until you sat in them. I'm 5'10" and my knees were already brushing up against the seatback in front of me. If you push the recline button on the armrest, the chair doesn't go back (of course it doesn't, the person's legs behind me are probably up against my chair anyway). Multiple people around me were also asking around if the chairs recline. I have a mild back injury and sitting up at 90 degrees the entire way was very uncomfortable.

Pros: By far the best trip I have made in a while

Pros: The ticket staff. The only thing about the Harlingen airport is that it needs more than a couple of exray machines ....the Valley is woefully behind in staff training and technology. It took forever to get through the short lines...it was too long of a wait.
Cons: The way that a couple of young AA men who were biligirent, combative and vulgar upset about their seat assignments. I told one of the young men to stop using vulgarity and no way to treat the lady that was doing her job, she continued treating them with courtesy and they kept mumbling under their breath God knows what. So young and already so bitter. They were towering over her and took a confrontational stance...she finally called security. I would not allowed them on the plane. I commend the young lady there in Harlingen.

Pros: Arrived early

Cons: Who has been charged for overweight luggage in the past year? Luggage scales at Denver airport are several pounds off from one to the next. They don't seem to get calibrated. This could easily be a class action lawsuit! Not to mention the supervisor, Dale Slosky was extremely rude and did not address the situation! United Airlines, please provide better training to your staff that you call supervisors.

Pros: kind employees

Pros: How can they keep on squeezing people in a plane... this is becoming ridiculous

Pros: Entertainment was offered on the flight
Cons: Flight was 90 minutes late Crew took an additional 40 minutes to get passengers with disabilities off the plane. There's no reason it should have taken that long. After I paid for entertainment, the crew announced it would be free for everyone since we were so late. Crew member was super-grouchy. Seats couldn't be smaller if they tried to sit you on a postage stamp. I'm a tiny person, but this is ridiculous!

Cons: I was two hours delayed from my originating terminal in Denver due to a snow storm overnight. I arrive into Houston two hours late only to re adjust my remaining flights back to Denver. Two days later. What was supposed to be a one day trip to get my kids to spend it with me in Colorado. Is now turning into a three day filled adventure in airports.

Cons: Read above comments that were meant for the Denver to Houston flight!!!

Pros: Inflight entertainment lacking so I slept all through
Cons: Inflight entertainment

Pros: Wonderful atmosphere despite turbulence
Cons: No dinner :) (not crucial, but is often nice to have)

Pros: No problems

Cons: Everything

Pros: Ok, since United now serves complimentary Illy coffee, it is much better!! Thank you for the great improvement. Sometimes it's the little things that make a big difference!

Pros: She didn't smile Speak as we boarded Had attitude

Pros: The simplicity of your website.
Cons: The guy sitting next to me.

Pros: The TV and very good selection of new movies
Cons: The snacks were too little!!

Pros: Nothing
Cons: flight cancelled and delays delays

Pros: My dad has worked with United for over 25 years way back when it was continental. I've loved flying with this airline since I was a little girl and I look forward to all my trips I book with United:)

Pros: The plane itself was beautiful and seating very roomy.
Cons: Mechanicall problem was nothing more than routine maintenance according to the pilot. After sitting on the plane 2 hrs with continued further delays I opted off and took a different flight which arrived 3 hrs later than originally booked. Very very annoying. At least I didn't miss my connection like many many passengers on board.

Pros: Good flight attendants.
Cons: After cancelled flight due to weather, process for booking hotel handled poorly. United's customer service says they partner with hotel booking agency to get you a discount, but this is either false or unlikely. The price you pay is the same.

Pros: Not much.
Cons: The plane left late due to electrical issue – light was on and had to be checked, and then we arrived in Houston very late and the captain said we had to push back to 3 inches. That's ridiculous. We are already late and people up out of their seats and we had to go is down again.

Pros: Price. You get what you pay for
Cons: Why does the city have to fix a ramp? Leaving Denver was late arrived in Houston late. Cant get off plane due to equipment issues.

Pros: Nothing
Cons: Yes

Pros: The male agent at the counter was great! Unfortunately that was the only good thing about the trip. Everything was SO expensive, had to pay $1.99 for a bottle of water which is free in other flights. The crew on board didn’t do anything and didn’t come through to collect trash until the very end.
Cons: More affordable prices, snacks and drinks available in flight, and a more helpful crew on board.

Pros: Crew was nice
Cons: No WiFi, no food.

Pros: Crew was personable and helpful
Cons: Longest boarding I’ve ever experienced.

Pros: FLIGHT WAS QUICKER
Cons: FLIGHT GATE CHANGED FROM TICKET, COUNTER BOARDING WAS "UN-ACCOMODATING".

Pros: Delayed 2 hours. Arrived at Houston and another 40 mins to get to the gate. I lost my connecting flight to Guatemala 7:42pm

Cons: We boarded before the air conditioning was working. We boarded before the pilots were at the airport. There was no resin to board that early. Lack of information from flight crew once we were on the plane. Very few announcements or explanations. Then once pilot was onboard, flight crew

Pros: THE CREW FINE

Pros: Flight was delay 5 hrs..... with no one telling us anything.

Pros: The crew was great
Cons: Nothing

Pros: Cheap flight, quick boarding.
Cons: Cramped accommodation, extra fees for luggage, no complimentary beverage service. I’d call it the Grey Hound of the air, except I recently took a Grey Hound and I was much more comfortable.

Pros: I paid 270$ extra for the carry on bags for the three tickets. If I knew that I would have chosen United tickets because they would be cheaper.
Cons: Kayak you guys fooled me and I’ll not trust you again.

Pros: Friendly staff
Cons: Disappointed that I had to pay for Carry-on luggage. Ridiculous! This is my first time flying without reclining seats. Ridiculous!

Pros: The crew was great, the flight itself was nice. The pilot landed the plane beautifully and we made up lost time somewhere along the route. There were lots of people working to get our bag checked quickly and the young lady who helped us was very friendly. She gave us directions to our gate before we could even ask. I will definitely fly Frontier again.
Cons: Our flight was delayed and we didn't get much information as to why or how long for quite a while.

Pros: That I'm finally home
Cons: The entire experience

Pros: The ride home
Cons: The 4 hour delay that received once we arrived at 4:30 AM to catch our 6 o'clock flight home to find out it had been delayed until 9:28 AM. Once we were on the plane we were then told we would be delayed until 10 AM. Flying with two children was difficult for a four hour delay. However front tier did give us all $10 food vouchers and $50 vouchers each for our next flight. Once we landed in Houston we then sat on the tarmac for another hour waiting for the gate open. The plane did have mechanical issues which caused the delay but still the notice given was always last minute

Pros: On time. Priced low. Staff professional, friendly.

Pros: The cleanliness and newness of the plane and the price of the flight! It's like I stepped into a bran new 2017 plane.

Pros: Your flight crew on this flight was absolutely amazing and professional. I fly quite often and this was my first trip flying Frontier Airlines and I was not disappointed. I would like to say a special shout out to Stacy who was amazing at her job and very professional. It's refreshing and nice seeing somebody who actually wants to be there and enjoys their job. Please pass on my gratitude to Stacy as it awesome flight. Go as far to say give this woman a raise! Thank you very much I will definitely fly again.
Cons: Getting off the plane seemed like it took forever but honestly no complaints other than that. Thank you.

Pros: The water
Cons: Were over charged for baggage and then told it was our fault for bringing luggage on a trip. Charged me 120 dollars for a 55lb. Bag. We were specifically told 15 extra dollars not 75 dollars. Will never fly frontier ever again and after earning 82000 point in the last 2.5 years. I'm done with Frontier. My business will search out better less misleading airlines

Cons: Carry on charges

Cons: $40 for checked bag Paying for juice/coffee inadequate legroom

Pros: Flight not over booked Cheap ticket
Cons: $45 to bring a carry on ? Attendant at the gate was ill prepared for her tasks. Almost like it was her first day, and she had no one there to help her. She had no clue what to do with people gate checking strollers and instead of finding help, she stood there looking helpless.

Pros: Like everybody else I didn't like the carry-on/ luggage payment. But you can still take one personal item(laptop bag/purse) for free. Also with cheap air-fare, I really don't have to complain about anything! All the details regarding boarding pass, online check-in, baggage, seats, etc is mentioned on their website, so if you don't choose to pay attention before boarding the plane then its not airline's fault. My flight was delayed 3 times. But I was informed well in time through automatic updates I signed up for. Frontier's Google App is very helpful to track the flight status, etc. Staff was very kind and courteous. Airplane was clean. Thank you for serving chilled water. I appreciate it.
Cons: Apart from the flight delay, I didn't had any trouble in flying with Frontier.

Cons: Flight delayed 2 1/2 hours whike a page from the log book was found. Apperently because of the large plane they couldn't bring in another one.

Pros: Flight was fine. Short flight of 2 hours, but no snack or tv.
Cons: I wish all planes had a tv on the back of their seats!

Pros: Overall, nothing stands out as exceptional. Just basic. Crew was ok but on both segments of my flight, I found them to be somewhat unprofessional as they were all having personal constrains with each other and seemed a bit annoyed if a passenger needed something.
Cons: The seats were the most uncomfortable plane seats I've ever sat in. I would recommend frontier for more than a 2 hour flight.

Pros: No TV, sears do not recline, Frontier sucks
Cons: Nothing

Pros: Flight attendants were awesome. Especially the elder Caucasian lady. She seemed genuinely happy and was the highlight of the trip. On time. No delays. Fast boarding process. Seats didn't recline but we're fine for a short trip.
Cons: The landing was unsettling. Maybe the wind was strong but I genuinely was concerned. I'm not normally a nervous flier but this landing did worry me. But we did land safely. Also annoyed at fee structure. This is my first and last time to fly frontier simply because of the fee structure, even if it means paying more elsewhere.

Pros: Paid half as much booking w Frontier. First experience w them. Less comfortable (hard seats, leg room) but worth the trade off for 2.5 hr flight. I made a somewhat last minute decision to fly out on a one- night trip. Paid $45 each way to carry on my laptop. Rough landing coming home.
Cons: Thin, hard seats; less leg room; $45 carry on charge each way for laptop; rough landing; one of attendants was rude.

Pros: Getting off the plane, pilot and crew on plane.
Cons: There was nothing to like. Ticketing was horrible. Cut off times not allowing people to get on plane in phoenix. It was chaos. The police were called on one man. Charge for carry on and refreshments card only with No warning at time of purchase. Had to throw away my luggage.

Cons: Never will fly Frontier again. Customer service very bad, a bunch of morons.

Pros: Frontier seems to have more leg room than the typical economy seat. Also, they didn't lose our bags. That's about all the positive that I can say.
Cons: The return flight was delayed by nearly 3 hours. Once on board, it was very warm for the entire flight. Also, Frontier is a good deal for a reason- there was no in-flight entertainment option, any drinks except water are provided at a cost and there is a charge for carry-on luggage that will not fit below the seat.

Pros: The flight was uneventful.
Cons: 2 hour and 45 minute delay. Nothing offered in compensation, paying for every bag, and the seats are uncomfortable.

Pros: Cheap rate
Cons: Flight was late

Pros: Nothing
Cons: First time flying with Frontier and two of the flights were delayed over an hour...

Cons: Flight was cancelled. No one was notified until after we arrived at the airport. The ticket agent informed all the passengers. Wasn't until later that we received emails. Frontier provided us with phone number to assist in re-booking. Call center was not open or manned and were told to call back later.

Cons: Late

Cons: It may be customary now, but we arrived with all our luggage as carry-on bags. We learned that they now charge more for carry on luggage than they do for checked bags. So we ended up checking two carry-on bags that we could have easily consolidated into one larger bag if we had known ahead of time. 2nd and worst of all - when we were checking in they told us our seats were not yet assigned (even though I picked seats out when I purchased the tickets). They showed a seating chart, but the only seats together required a premium payment of an extra $30 per seat! We complained and they told us to let the computer assign seats for us. That worked and the computer ended up assigning us two premium seats together. By the way - I did see what was "premium" about these seats. They reminded me of spirit airlines. Overall it seems like frontier is now trying to find ways to charge customers for things that were previously included and it is somewhat intentionally deceptive. I appreciated the low cost of the ticket, but I was left with a bad feeling overall. Spirit airlines is an inexpensive no frills airline as well but at least they are upfront and direct. I will fly with them next time if I have to, or go back to United.

Cons: They charge for carry on luggage, shame! Even if everything else was perfect (it wasn't) they would still suck just for that reason,

Pros: I arrived
Cons: Late - as usual!

Pros: I liked the crew, they were very personable and nice.
Cons: Charging $40 per carry on? Are you kidding me?? We didn't budget for that and almost had to fly with no luggage. For this reason alone we are never taking another flight from Frontier. It's bad enough that Frontier charges for all baggage, but we had no idea when we bought the tickets off Kayak, that it would be an extra $130 for luggage. What a rip off. Then at the airport, the line to get a baggage ticket wasn't that long, but it took almost 45 minutes. Every time we fly Southwest or Delta, it takes only 10 minutes to get our baggage tagged and on our way to security. I was also unpleasantly surprised that even water costs $2. Other airlines give a free drink, but Frontier charges $2. Terrible. And the seats don't recline. In summary for areas to improve: don't charge me for carry on and don't charge me for water. I will also be looking for another online venue to buy my next tickets, we thought we were going to get a great deal (round trip tickets for two people for around $680) but instead will end up paying in the neighborhood of $885. Kayak let us down big time.

Pros: Nothing
Cons: We missed the flight so has to rebuy tickets from another airline with another $1600

Pros: To be fair, the last time I flew with Frontier was like 10 yrs ago. Back then, they used to be one of the best airlines out there. Sadly this time I was hugely disspointed by this airline. The seats are extremely uncomfortable, very little padding, do not recline and very small. Fell bad for the flight attendants because they were more of sales agents than actually attending the passengers. I don't think I will make Frontiet a flight of choice again.
Cons: Seats are extremely uncomfortable.

Pros: Plane was clean and the flight was on time.
Cons: Frontier's baggage policies and fees are annoying. The seats are very small and uncomfortable. Like other discount airlines, they take the fun out of flying.

Cons: The staff at the Frontier check in desk was extremely rude. (Which I can imagine is because they spend their day getting fussed at because of how awful Frontier is). I was charged over $100 per way for my family to bring very small carry on items onto the plane. I have NEVER heard of being charged for very small backpack sized carry ons. When I questioned the staff member, she looked at me and literally did not respond. She stared at me like I was speaking another language. I waited over an hour and a half for our checked bags to come to the baggage claim area. Everyone was looking for Frontier staff to help us as our bags didn't seem to be coming. The two staff members we found were HORRIBLE and extremely rude. They stood there leaning against the wall staring at us and telling us they couldn't help us - It isn't their department? The seats are uncomfortable- they do not recline at all. They charge for EVERYTHING on the plane- including drinks (non-alcoholic). Overall, the staff was rude, the charges were outrageous, and the flight was uncomfortable. I have never had such a horrible experience and will NEVER fly Frontier again. .

Pros: The assistance at the check in counter was great and I was able to move through the line quickly.
Cons: The kiosks were broken at the Frontier at IAH that made the line a bit longer than it needed to be. Also, there was a last minute gate change that was annoying. I heard another passenger on another flight that said they had experienced a last inure gate change as well.

Pros: The people at the airport and with Frontier Airlines were very pleasant and helpful.
Cons: Frontier Airlines hooks you with a very nice, affordable price for the ticket and then jabs you with fees for your seat, your bag (even a carryon!) and even a beverage! No peanuts or crackers even! I'll never take Frontier again...... Southwest or United ONLY!!!! At least what you pay is what you pay and you don't get dinged for every additional step you take!

Cons: Late and their customer service unpleasant


Pros: The seats were bigger than the first flight of the day.
Cons: There were unused rows. Why do they always have people grouped together? We're supposed to be keeping a distance. This is not an isolated incident.

Cons: $50 for one checked bag is outrageous...and another $50 for a carry-on. No thank you.

Pros: Crew was friendly
Cons: The flight was 45 minutes late boarding and no crew was at the gate to notify customers. Online system did not notify that the plane was going to leave late.

Pros: Stewardesses were very nice and pleasant. We left timely and arrived on time.
Cons: My seat got randomly assigned and I was put on the back row window seat with no window. I wish I could have selected my seat from a list of free spots (w/o extra charge). I don’t like that you are charged for everything: seat change, water, and any snack. I would expect at least water as passengers get dehydrated from flying. Seats are uncomfortable, not much space from seat in front, and there is no recline. Feels crammed. Lacks hospitality majorly as I am charged for every little thing. I hope they don’t start charging for oxygen intake. I was not informed of entertainment options, but I’m sure they were not inexpensive. I will not be flying with Spirit Airlines again. There are other airline options that are less expensive (after you add all the additional fees up) and much more comfortable and hospitable.

Cons: Extra hidden charges. The kiosk wasn't finding my ticket from the flight number given so I went to the counter and spirit wanted to charge me to find the ticket I'd already bought from them! I was shocked. Also on line I was led to believe a carry on was included, but again I was charged. Seating was terribly cramped. I will do my best to never fly Spirit in the future.

Pros: ?
Cons: Charged me a ton to check a bag (80$), then lost it - still don’t know where it’s at; this was my first and last experience with spirit; just moved below frontier on my list (which is pretty impressive)

Pros: Everthing is better

Pros: Price
Cons: Unable to get refund for a flight that hadn’t been missed yet

Cons: Our flight was changed 3 times so we we landed at 11:00 pm instead of 4:00 pm with an additional stop and layover.

Pros: Crew was easy to work with, friendly & accommodating
Cons: Nothing! Good crew!

Pros: I liked it much better before priceline took over
Cons: I don't like the fact that I can no longer print my boarding pass before I get to the airport

Pros: Good cheap fare
Cons: Smaller carry on size

Pros: Clean and new airplane
Cons: I did not know that the carry-on luggage had a $55 fee. That is very high. Is there a way to include the carry-on purchasing as part of the ticket purchasing?

Pros: The flight was good
Cons: The very long delay.

Pros: Nothing was correct..
Cons: The airline has a Standard Practice of booking up to 10 over booked seats, on Every Flight. We werr bumped out, because an elderly woman and grandson, needed to fly... even tho my family an I had to attend a funeral.

Pros: Good flight on time great crew.

Pros: On time

Pros: Nothing
Cons: They sold my ticket - I checked in along w my luggage in the terminal and when I got to the gate, the agent said he sold my ticket to someone else. They are offering incentives/refund now but really? He apparently told management i voluntarily surrendered tickets, but now I'm to sign a document saying that never happened. I had to use united to get home. it was a nightmare.

Pros: I didn't get a chance to book
Cons: So I checked my suitcase and the terminal employee who checked me in tells me I have to hurry to flight (30 mins to board). I get there before boarding and the counter kid says he sold seat to someone else. Why didn't baggage taking employee alert me to this before? That my seat was sold? Really?

Pros: Left on time, landed on time, good flight, cabin crew helpful
Cons: Gate agents not very friendly, extra fees for all bags were not clear until we were already at the airport

Pros: The price but it wasn't worth it.
Cons: The cramped seating.

Cons: The seats were very cramped. Everybody was pretty much sitting on top of each other. The comfort level was very poor. Having a bunch of screaming babies and children made the flight worse.

Pros: Comfortable seats with plenty of leg room
Cons: I wasn't able to choose my own seat and got stuck at the back of the plane in a "window" seat without a window. Being unable to see outside with a very rough flight made me so nauseous. I was highly disappointed in having to pay to carry on my small suitcase. Or pay for a can of pop. Seriously? And there was a gentleman in front of me that caused us to be delayed about 15 minutes on anew already late flight. I probably won't fly on Spirit again.

Cons: Flight was cancelled with no reason given, it took almost an hour to call and get my return trip cancelled because the website would not allow me to change my flight. Representative tried to reschedule me for a 12 hour trip when the original flight was 2.5 hours before finally cancelling my trip all together. Spirit ended up costing me $150 more than had I booked with another airline at the beginning because I was left having to purchase a ticket day of on a competitor.

Pros: The air host was kind and funny

Cons: Our luggage was supposed to come out of carousel number 3. It took an hour for the checked bags to land after we had arrived. "Karen" at the luggage window next door, was incredibly rude and unhelpful.

Cons: Late.

Pros: Price Easy
Cons: Nothing. Was cheap and what I needed.

Pros: I liked that on the way to Denver and on the way back, my husband then later I also, was asked if we wanted to sit in the exit row. We had not purchased seats beforehand and just took random seats. We ended up being able to sit next to each other on the way back with more leg room. Thanks!

Pros: There is nothing to note that I liked about this airline.
Cons: If you any sense, you'll never fly on this airline. I have had 4 or 4 flights end up being the worst flights ever. It is worth the extra money to fly on another airline.

Cons: My luggage was lost. The agent that helped me didn't even appoligize on behalf of Spirit. She was very rude, and acted like she didn't want to be there, which made me even more mad and upset that my bags were lost. I don't know if I would fly Spirit again. It isn't worth the savings after you are nickeled and dimed. Also, customer service needs some improvement.

Cons: Flight was delayed 1.5 hours airline attendants did not know where bags were to come out said ask gate attendants took forever for bags to come out. There is alway problems with spirit airlines flow them 4 time problem every time

Pros: Worth the money! We saved about $175 by choosing this airline, and thats with baggage costs!
Cons: waiting for luggage was horrible because something got stuck and no one (employees) took notice even though there was a spirit airlines service desk right next to the carousel. I had to call the airport and ask them to send someone.

Pros: Staff was super friendly and helpful!

Pros: Clean and friendly staff
Cons: NTR

Cons: I think $50 for one suitcase is absolutely ridiculous. Your charging more $ for less service.

Pros: Courteous crew.

Pros: flight price before bags
Cons: Seating the worst I have ever seen, husband 6'5" will never fly spirit, bags cost to much. I returned on Southwest and it was well worth the $50 more. I paid the same price on spirit when the bad fee was so expensive. I can get two free bags, leg room, drink and snack. Not worth it.

Pros: Flight was on time. Boarded fairly quickly and was smooth. The staff was fine and friendly.
Cons: The plane(at least my seat) was dirty. There were what seemed to be good smears on the window and something smeared inside of the pocket under the tray table.

Pros: Same crew and plane as the first flight from Detroit to Denver, friendly and helpful. Comfortable with what room I had.
Cons: This was my first time flying Spirit and I was unaware of all the extra fees, I ended up paying the same if not a little more than I would have with another airline. I ragweed food and entertainment a 3 because there was no N/A option, I brought my own onto the flight and did not purchase any from the airline.

Cons: The flight was delayed and I missed my connecting flight, had to wait 17 hrs before being able to fly.

Pros: The flight was cheap.
Cons: 1 hour delay to start. Then ground crew dud something to knock out a flight display screen in the cabin. 45 mins later the screen is fixed, but we're waiting on paperwork. 30 mins later paper work is complete but we need a new passenger count. 30 to 45 mins to get a passenger count! Meanwhile the flight crew is snippy, but they serve a thimble of water and cookies. Finally they offer $50 vouchers for your next flight, you just have to get in contact with "Adam" who is somewhere around the airport we just left. So. . . Yeah.

Pros: The steward's patter at the beginning of the flight was exceptionally well delivered.

Pros: Friendly staff.
Cons: The bagage fee is more than other airlines. The website asks you to pick a seat and then charges you for each seat and each flight so it could have been $ 120 more for my family. Early check in fees are not appreciated.

Pros: Flight was cheap and on time and uneventful..all good.
Cons: Crew was not friendly..seemed annoyed that I was throwing away trash in the pocket from a previous guest...I kept her at met side for a minute while I collected all the trash..and she sighs and tried moving on...she should be thrilled that someone was cleaning up!

Pros: Eh.
Cons: I bought travel insurance and spirit cancelled flights to Houston and refused to work with other airlines to get passengers where they needed to be. This airline doesn't care about its customers at all. Very disappointed.

Pros: I got exactly what l expected...no frills flight. Flight was on time. Crew was professional.

Pros: The crew was great
Cons: Flight was delayed. Other passengers said they routine fly Spirit and that is typical of there experience

Cons: The flight was delayed three days with no compensation. Never flying with spirit again!

COVID-19 information

Safety measures for airlines flying from Denver to Houston

Airlines flying from Denver to Houston have enacted additional safety measures and adjusted policies to better accommodate travelers. Policies vary by airline.

Heightened sanitation

Daily cleaning, installation of cabin HEPA filters on flights from Denver to Houston

Mandatory masks

Masks required on board, masks provided on flights from Denver to Houston

Social distancing seating

Middle seats unavailable to book on flights from Denver to Houston

Pre-flight testing

Testing for antibodies, testing for symptoms for flights from Denver to Houston

Flexible cancellations

Waiving of change fees. Search flexible flights from Denver to Houston

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Recent round-trip flight deals

10/2Sat
nonstopSpirit Airlines
2h 23mDEN-IAH
10/9Sat
nonstopSpirit Airlines
2h 34mIAH-DEN
$36
10/2Sat
nonstopSpirit Airlines
2h 23mDEN-IAH
10/5Tue
nonstopSpirit Airlines
2h 42mIAH-DEN
$37
11/4Thu
nonstopSpirit Airlines
2h 20mDEN-IAH
11/8Mon
nonstopSpirit Airlines
2h 34mIAH-DEN
$38
10/8Fri
nonstopSpirit Airlines
2h 20mDEN-IAH
10/11Mon
nonstopSpirit Airlines
2h 34mIAH-DEN
$40
10/7Thu
nonstopSpirit Airlines
2h 20mDEN-IAH
10/10Sun
nonstopSpirit Airlines
2h 34mIAH-DEN
$41
10/8Fri
nonstopSpirit Airlines
2h 20mDEN-IAH
10/10Sun
nonstopSpirit Airlines
2h 34mIAH-DEN
$42
10/22Fri
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2h 20mDEN-IAH
10/24Sun
nonstopSpirit Airlines
2h 34mIAH-DEN
$43
10/7Thu
nonstopSpirit Airlines
2h 20mDEN-IAH
10/11Mon
nonstopSpirit Airlines
2h 34mIAH-DEN
$44
10/18Mon
nonstopSpirit Airlines
2h 20mDEN-IAH
10/25Mon
nonstopSpirit Airlines
2h 34mIAH-DEN
$45
10/27Wed
nonstopFrontier
2h 28mDEN-IAH
10/30Sat
nonstopFrontier
2h 37mIAH-DEN
$46
10/5Tue
nonstopMultiple Airlines
2h 23mDEN-IAH
10/12Tue
nonstopMultiple Airlines
2h 37mIAH-DEN
$47
10/6Wed
nonstopMultiple Airlines
2h 31mDEN-IAH
10/11Mon
nonstopMultiple Airlines
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$52
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nonstopMultiple Airlines
2h 23mDEN-IAH
10/6Wed
nonstopMultiple Airlines
2h 29mIAH-DEN
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1 stopMultiple Airlines
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nonstopFrontier
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10/11Mon
nonstopFrontier
2h 35mIAH-DEN
$55
10/6Wed
nonstopMultiple Airlines
2h 31mDEN-IAH
10/10Sun
nonstopMultiple Airlines
2h 34mIAH-DEN
$56
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nonstopMultiple Airlines
2h 30mDEN-IAH
10/9Sat
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2h 30mDEN-IAH
10/15Fri
nonstopMultiple Airlines
2h 34mIAH-DEN
$60
10/15Fri
nonstopFrontier
2h 30mDEN-IAH
10/18Mon
nonstopFrontier
2h 35mIAH-DEN
$64
11/12Fri
nonstopFrontier
2h 30mDEN-IAH
11/16Tue
nonstopFrontier
2h 37mIAH-DEN
$66

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Recent one-way flight deals

10/7Thu
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2h 20mDEN-IAH
$17
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$18
9/29Wed
nonstopSpirit Airlines
2h 23mDEN-IAH
$19
9/30Thu
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$20
9/29Wed
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$23
11/18Thu
nonstopFrontier
2h 25mDEN-IAH
$25
10/5Tue
nonstopFrontier
2h 26mDEN-IAH
$26
10/31Sun
nonstopFrontier
2h 23mDEN-IAH
$27
10/15Fri
nonstopSpirit Airlines
2h 20mDEN-IAH
$28
10/7Thu
1 stopSpirit Airlines
12h 29mDEN-IAH
$29
10/16Sat
nonstopFrontier
2h 28mDEN-IAH
$30
9/29Wed
nonstopSpirit Airlines
2h 23mDEN-IAH
$31
10/8Fri
nonstopSpirit Airlines
2h 20mDEN-IAH
$32
10/18Mon
nonstopFrontier
2h 23mDEN-IAH
$33
10/19Tue
nonstopFrontier
2h 23mDEN-IAH
$34
10/17Sun
nonstopFrontier
2h 23mDEN-IAH
$35
9/28Tue
1 stopSpirit Airlines
8h 44mDEN-IAH
$37
10/14Thu
nonstopFrontier
2h 26mDEN-IAH
$39
10/12Tue
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2h 24mDEN-IAH
$59
10/20Wed
1 stopMultiple Airlines
8h 51mDEN-IAH
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Denver - Houston Flights

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Denver (DEN)United States

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Houston (IAH)United States

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Houston - Denver

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