DEN

Find Business Class Flights from Seattle to Denver

1 adult
1 adult, Business, 0 bags

KAYAK searches hundreds of travel sites at once for business class flights from Seattle to Denver

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Denver, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Denver, as well as popular online travel agencies
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Cheap Business Class Flight Deals from Seattle to Denver

 
These are the cheapest deals for flights from Seattle to Denver currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent business class round-trip flight deals to Denver

Tue, Jun 30 - Fri, Jul 3
Frontier Logo
7:41 pm - 11:36 pm
SEA
-
DEN
2h 55mnonstop
Frontier Logo
4:26 pm - 10:35 am
DEN
-
SEA
19h 09m
1 stop
$511Frontier
Thu, Jul 9 - Wed, Jul 15
Frontier Logo
7:06 pm - 10:58 pm
SEA
-
DEN
2h 52mnonstop
Frontier Logo
7:13 am - 9:17 am
DEN
-
SEA
3h 04mnonstop
$514Frontier
Fri, Sep 18 - Sun, Sep 20
Frontier Logo
7:00 pm - 3:52 am
SEA
-
DEN
7h 52m
1 stop
Frontier Logo
10:30 pm - 10:00 am
DEN
-
SEA
12h 30m
1 stop
$518Frontier
Thu, Jul 9 - Wed, Jul 15
Frontier Logo
10:34 am - 12:29 am
SEA
-
DEN
12h 55m
1 stop
Frontier Logo
7:13 am - 9:17 am
DEN
-
SEA
3h 04mnonstop
$520Frontier
Fri, Sep 18 - Sun, Sep 20
Frontier Logo
7:41 pm - 11:34 pm
SEA
-
DEN
2h 53mnonstop
Frontier Logo
10:30 pm - 5:45 pm
DEN
-
SEA
20h 15m
1 stop
$522Frontier
Tue, Jun 30 - Fri, Jul 3
Frontier Logo
7:41 pm - 11:36 pm
SEA
-
DEN
2h 55mnonstop
Frontier Logo
7:45 am - 9:48 am
DEN
-
SEA
3h 03mnonstop
$525Frontier
Thu, Jul 9 - Wed, Jul 15
Frontier Logo
10:34 am - 12:29 am
SEA
-
DEN
12h 55m
1 stop
Frontier Logo
4:25 pm - 10:39 am
DEN
-
SEA
19h 14m
1 stop
$527Frontier
Fri, Jun 26 - Sat, Jun 27
Frontier Logo
7:41 pm - 11:36 pm
SEA
-
DEN
2h 55mnonstop
Frontier Logo
12:47 pm - 10:35 am
DEN
-
SEA
22h 48m
1 stop
$546Frontier
Fri, Jun 26 - Sat, Jun 27
Frontier Logo
7:41 pm - 11:36 pm
SEA
-
DEN
2h 55mnonstop
Frontier Logo
7:45 am - 9:48 am
DEN
-
SEA
3h 03mnonstop
$556Frontier
Tue, Jun 30 - Fri, Jul 3
Frontier Logo
11:53 am - 9:26 am
SEA
-
DEN
20h 33m
1 stop
Frontier Logo
4:26 pm - 10:35 am
DEN
-
SEA
19h 09m
1 stop
$568Frontier

Good to Know - Business Class Flights from Seattle to Denver

Cheapest flight$232
Good deal one-way$587
Flight from Seattle to Denver
or less

When to book business class flights to Denver

Are your dates flexible? We break down the daily and monthly prices for business class flights to Denver, so you can find the best time to fly.
Average price per month
Flight prices as travel date approaches

KAYAK’s Insights & Trends for Seattle to Denver Business Class Flights

Get data-powered insights and trends into flights from Seattle to Denver to help you find the cheapest flights, the best time to fly and much more.

Which airlines offer Business Class tickets between Seattle and Denver?

There are 3 airlines that fly Business Class from Seattle to Denver. They are: Delta, United Airlines and Alaska Airlines. The cheapest price of all airlines flying this route was found with Delta at $273 for a round-trip flight. On average, the best prices for flying Business Class on this route can be found at Delta.

FAQs for Business Class Seattle to Denver Flights

  • What is the best airline when flying business class between Seattle and Denver?

    The highest-rated airline by KAYAK users offering business class flights for this route is Southwest, with an overall rating of 8.0.

KAYAK's Tips for Finding Cheap Business Class Flights from Seattle to Denver

  • It's only possible to fly business class direct between Seattle and Denver.

Reviews of the Top 5 Airlines Flying Business Class from Seattle to Denver

 
See real verified KAYAK customer reviews for airlines flying to Denver. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Seattle to Denver. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly business class to Denver? 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
SouthwestOverall score based on 4257 reviews
8.6Crew
7.5Entertainment
8.1Boarding
7.0Food
8.0Comfort
Airline reviews

The first time I flew in the extra legroom section. It was difficult to notice a difference. I had bad luck with my neighbors. The crew was okay. Southwest has reduced the live TV options.

4.0 OkayAnonymous, May 2026
MDW - LAX
Read more Southwest reviews

The first time I flew in the extra legroom section. It was difficult to notice a difference. I had bad luck with my neighbors. The crew was okay. Southwest has reduced the live TV options.

The flight was smooth. The Southwest experience has degraded overall, but this one was okay.

No gluten free snacks. Seats felt worn or bare bones even though it was a new 737 MAX 8.

One major problem that was very unprofessional and uncalled for. Plane landed and we had to wait 20 minutes to get off the plane since they were waiting for someone to come to the gate to drive the jetway. Southwest couldn't have someone available and waiting for the plane to land? Is there only one person in Hobby airport who knows to drive the jetway? Was he at lunch? In the bar? Uncomfortable and uncalled for!

The checking experience in Orlando was terrible, almost missed the flight. Too many travelers and Southwest completely understaffed.

I'm glad it wasn't only 75% full because I could get a good seat

if I was good. Not happy that I have to pay extra money to get the seat I need for lake room, but I guess that’s a sign of the times.

Seats were very comfortable. They tilted back. Drinks and snacks were free and served 3 times. Attendants were awesome.

Plane was clean and comfortable. Flight attendants and gate staff were professional, friendly and efficient. Boarding and deplaning were orderly and efficient. All in all, the typical excellent Southwest experience.

Truly terrible. Will never willingly fly southwest again. Seats are worse than before they switched to assigned seating. One flight attendant was the opposite of helpful (rude, unhelpful, dismissive, and as my stranger seatmate said unprompted: a total prick). This caused me, 15 minutes into the flight, to book an alternate return flight home on a competing airline (first class 1.2k purchase instead of my existing planned flight) just so I would not have to ever be on that aircraft, with that terrible service person, with those horrific seats ever again.

I was surprised by everything. The cleanliness, the punctuality, the friendliness of the crew… and the Wi-Fi! Please keep up the good work.

The flight attendant and first class were very friendly, efficient, and wanted to make sure that service was great. Highly recommend this airline.

Thank you to everyone, the crew and pilots.. they were so amazing!!

Crew was so kind, flight was easy, thank you so much for everything

The plane was to narrow. Uncomfortable seats.. Kayak is Awesome!

I had to cancel this trip due to medical reasons. I took out flight insurance but I was unable to cancel my reservation on either Kayak or Alaska. I need proof that I did not take this flight to get my refund. I have tried for a week and a half together that information from either Kayak or Alaska but so far I have gotten no response. I am very disappointed!

We had paid for window seats just to not get window seats. When we ask the flight attendant to switch seats she said no because it was a full flight. It was the the worst experience I had ever.

The crew seem untrained and uncertain no one ever checked up on us in our first class cabin. I had to ask for water four times and the lady kept saying she was busy when they weren't really doing anything. Had to walk to the back of the plane to get water for myself. Crew seem new and unexperience. You can tell this by the fumbling they kept making trying to fight. (I miss Hawaiian air.)

Alaska airlines agent helped me greatly to reschedule my flight. The flight was also very comfortable and the flight attendants were very friendly.

The crew was great and everything went smoothly coming and going.

My service light was on 15 minutes before I had to get up and find a glass of ice. And I was in business class. The meals were not for either my wife and I. She did not eat the entire 10 hour flight and I managed a bowl of soup. I was expecting much more from business with what we paid.

The Boarding process was great. Particularly since my wife and I require assistance. The flight attendants were amazing. We travel frequently; they honestly were a cut above. 😀

Smooth flight. Left on time, and got in 15 minutes early. Onboard video was great

My business class seat was inoperable and unable to recline for 10 hour flight.

Crew was nice, meal was good. Entertainment had to be rebooted 3 times and still did not work. Turns out there was residue on screen, it needed to be cleaned to prevent the touchscreen buttons from continuously activating. I had entertainment for the last 45 minutes of a 5 hour 45 minute flight. Really unacceptable for first class. Flight attendent indicated your cleaning solution creates this problem. Seems as if this is widely known, you should be using a different product or cleaning better. Really really disappointing which simply added to the wi fi on your planes with reliably never ever works.

Landed without a gate ready. Plane is extremely old and dirty.

My tray was broken so i had no place to work or eat except my lap. Flight attendant said I would get an email with some credit or miles, it was a complete waste of time as I could only function at about 20% of normal. I have not received anything yet.

The tray table was broken and the food was terrible.

Snacks and included beverages were appreciated. Boarding went smoothly. Plenty of overhead bin space. Seats get very uncomfortable after a couple of hours. After waiting 10 painful minutes for my walker, a very nice Delta guest agent pushed me in a wheelchair to the gate. It was finally delivered to me after another 15 minutes . Our checked bag was on the carousel long b4 I was able to retrieve it. Fortunately it was still there but somewhere along the way the straps we used to secure it were removed and and were not reattached. Wish I had made note of the agents name.

It was fine. 55 minute flight. No snacks or beverage service offered. Boarding went smoothly and my walker was waiting for me on the jet way.

Late- that’s what United does best. Missed my connection, rebooked to a flight 17 hours later and had to spend $500 on a hotel. What did I get? A $15 meal voucher. What can you get in an airport for $15. I hate United so much.

It was good overall except from Omaha to Denver when flight a was a repeatedly delayed apparently due to some issue at Denver. Communications could have been handled better. I had to board then deboard with luggage and board again

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

They told us yesterday APR21st that they were cleaning the plane and we got delayed. After that they said they didn't had any crew for the flight so they cancelled the flight till next day.

The flight crew on this leg of my trip was very friendly and pleasant. Every one of them was humorous, as well as helpful and accommodating. This group was BY FAR the best crew I’ve flown with. They deserve kudos.

The entertainment options on the seat back video boards were nice.

The boarding process was straightforward. One pertinent observation regarding all boarding procedures is that if an individual requires assistance or possesses a special status and is part of preboarding, it is advisable to limit the number of passengers who can preboard with them, rather than the entire, sometimes large, companion groups. The seats are uncomfortable, and the entertainment options are significantly inferior compared to other airlines. During the snack service, I requested an additional bag of snacks, but my request was denied. Initially, the flight attendant agreed to my request.becoming a strange accurate moment. The flight duration was four hours.

I had a cancelled flight because of technical issues going to my destination, and a delayed flight coming home. All told it wasn’t a total bust.

During landing. 2 crew members passed 3 times by my lane and didn't notice that people in front of us had their site to the furthermore reclined... That was uncomfortable and could have been dangerous.

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

There weren't enough employees at check in took awhile to get bags checked. There wasn't a wheel chair for me, I was sent to someone who turns out to work for a different airline, if My flight hadn't been delayed I probably would have missed my flight as it was, by the time I arrived at my gate, they started boarding in about 15 minutes. I don't know who took me to my gate, definitely was not the normal people who take passengers to the gate. I'm guessing she may have been in a management position. I wish I knew her name, she went beyond to help me. With that said everyone was kind, and were doing the best they could. So, I choose to say it was an Adventure, stressful start, but good. In the end went well. The situation was not only difficult for passengers but the employee's.

Frontier scheduled a 40 minute connection in DEN. What they failed to mention was that they “close the doors” 20 mins prior to departure, which means you only have 20 mins. Not enough time. Possibly against DOT regulations. Filing complaint.

It was an early flight and most people napped/slept and the crew let us which was nice.

More inflight connection. And leg space is horrible. And the paying for baggage I'd ridiculous!!!

It was costly and difficult to check in. $85 to take a small suitcase with me, carry on or checked and $75 on the return trip, Plus $25 if I didn't check my self in check in $25, because I couldn't do it on the kiosk. Small very uncomfortable seats, waited on the runway for near an hour each way. It was my worst flight to date.

Due to weather, my flight was delayed, further delayed, then canceled. I eventually got through to a support person who helped me find a different route out of MSP, but to get to DIA, they didn't want to, but eventually did help with the connection ticket purchase. But even this replacement flight was delayed time and time again, and I would have missed my connecting flights and I didn't want to get stuck in a layover city, so after 12 hours at the airport with two young boys who were very tired, we just cancelled our plans and spent the week at home, instead of Nana's.

I knew going into this that Frontier, being a low cost carrier, would be pretty bare bones and charge for most extras but this was made up for by the fact that the airplane was a reasonably new Airbus, every employee was great and best of all, Everett Washington is an amazing airport - thanks Frontier for flying there!!!

Seats were new and comfortable. Staff was fine. Missed my connection due to weather -which wasn’t their fault- but got no help at all. Gate staff sent me to customer service, which was and stayed unstaffed. Sign with QR code directed me to call or chat. Chat was useless. Call was returned after an hour. No itinerary offered by Frontier could get me home in less than 30 hours. Rebooked with another airline and got a partial refund that came to about 10 percent of what I paid to get home.

The experience was good. No frills but I got there safe and sound and on time.

As every law enforcement agency I could imagine surrounded the plane and we didn’t disembark for 2 hours and then had to stick around for another hour to go get our personal belongings after leaving them behind and being bused away from the plane, it was scary and inconvenient. We were given no information as to why this was happening. Lack of communication with passengers was disappointing.

Everything you need to know for your flight to Denver

Cabin class types available on flights from Seattle to Denver

Cabin classes available on flights from Seattle to Denver. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.