SEA

Find Business Class Flights from Denver to Seattle

1 adult
1 adult, Business, 0 bags

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

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

 
These are the cheapest deals for flights from Denver to Seattle 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 Seattle

Sat, Sep 26 - Sun, Oct 4
Frontier Logo
10:29 pm - 12:27 am
DEN
-
SEA
2h 58mnonstop
Frontier Logo
7:00 am - 10:51 am
SEA
-
DEN
2h 51mnonstop
$495Frontier
Sat, Sep 26 - Sun, Oct 4
Frontier Logo
10:29 pm - 12:27 am
DEN
-
SEA
2h 58mnonstop
Frontier Logo
11:06 am - 12:25 am
SEA
-
DEN
12h 19m
1 stop
$501Frontier
Sat, Sep 19 - Sat, Sep 19
Alaska Airlines Logo
8:22 am - 10:24 am
DEN
-
SEA
3h 02mnonstop
Alaska Airlines Logo
2:18 pm - 9:13 pm
SEA
-
DEN
5h 55m
1 stop
$511Alaska Airlines
Wed, Jun 24 - Sun, Jun 28
Frontier Logo
10:29 pm - 6:57 pm
DEN
-
SEA
21h 28m
1 stop
Frontier Logo
7:41 pm - 11:36 pm
SEA
-
DEN
2h 55mnonstop
$512Frontier
Sat, Sep 26 - Sun, Oct 4
Frontier Logo
10:30 pm - 5:45 pm
DEN
-
SEA
20h 15m
1 stop
Frontier Logo
9:16 pm - 3:52 am
SEA
-
DEN
5h 36m
1 stop
$522Frontier
Tue, Jun 9 - Fri, Oct 2
Frontier Logo
10:29 pm - 6:57 pm
DEN
-
SEA
21h 28m
1 stop
Frontier Logo
7:00 pm - 1:49 pm
SEA
-
DEN
17h 49m
1 stop
$538Frontier
Tue, Jun 9 - Thu, Oct 8
Frontier Logo
10:29 pm - 6:57 pm
DEN
-
SEA
21h 28m
1 stop
Frontier Logo
7:41 pm - 11:34 pm
SEA
-
DEN
2h 53mnonstop
$541Frontier
Tue, Jun 9 - Fri, Oct 2
Frontier Logo
7:25 am - 6:26 pm
DEN
-
SEA
12h 01m
1 stop
Frontier Logo
7:00 am - 10:51 am
SEA
-
DEN
2h 51mnonstop
$542Frontier
Wed, Jun 24 - Sun, Jun 28
Frontier Logo
10:29 pm - 6:57 pm
DEN
-
SEA
21h 28m
1 stop
Frontier Logo
3:33 pm - 7:21 pm
SEA
-
DEN
2h 48mnonstop
$558Frontier
Tue, Sep 22 - Tue, Sep 22
Alaska Airlines Logo
7:00 am - 3:59 pm
DEN
-
SEA
9h 59m
2 stops
Alaska Airlines Logo
7:32 pm - 11:19 pm
SEA
-
DEN
2h 47mnonstop
$566Alaska Airlines

Good to Know - Business Class Flights from Denver to Seattle

Cheapest flight$495
Average price round-trip$942
Good deal round-trip$801
Good deal one-way$424
Flight from Denver to Seattle
(avg. price over the last 2 weeks)
or less
or less

When to book business class flights to Seattle

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

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

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

Which airlines offer Business Class tickets between Denver and Seattle?

There are 3 airlines that fly Business Class from Denver to Seattle. They are: Delta, Alaska Airlines and United Airlines. The cheapest price of all airlines flying this route was found with Delta at $248 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 Denver to Seattle Flights

  • How much is a business class ticket from Denver to Seattle?

    The price of a business class flight ticket between Denver and Seattle depends on many factors, like when the ticket was booked, the departure date, season and much more. The average price for all bookings made on KAYAK for this route over the last 2 weeks is $942 for a round-trip.

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

    The highest-rated airline by KAYAK users offering business class flights for this route is Alaska Airlines, with an overall rating of 7.9.

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

  • What’s a good price for a business class ticket between Denver and Seattle? 25% of our users found flights on this route for $402 or less one-way and $616 or less round-trip.
  • It's only possible to fly business class direct between Denver and Seattle.

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

 
See real verified KAYAK customer reviews for airlines flying to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Denver to Seattle. 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 Seattle? 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.
7.9
Alaska AirlinesOverall score based on 12423 reviews
8.1Boarding
7.0Entertainment
8.5Crew
7.1Food
7.8Comfort
Airline reviews

It was efficient and great. DIA took a while to let us leave but other than that it was great.

8.0 ExcellentAnonymous, May 2026
DEN - SEA
Read more Alaska Airlines reviews

It was efficient and great. DIA took a while to let us leave but other than that it was great.

90 minute delay boarding the plane, 45 minute delay on the terminal, 2 hours late arriving, currently waiting 45 minutes on the tarmac for a gate so we can BEGIN deboarding. Absolute mess. Definitely will be my last flight with Alaska.

Extremely professional crew there are very friendly and first class. Everything worked well on the plane. Food was to be expected. Drinks were very good. Shout out to Charlie in first class who was an excellent flight attendant.

The plug in for my charger didn’t work and on my return flight back home the passenger in the window seat got up seven times

The boarding pass had no gate published and there are many fewer large boards with arrivals and departures I almost missed my flight trying to find the gate

Everyone was so kind, flight was wonderful, check in and baggage were easy. Thank you guys so much for a great trip

For such a long flight, Tampa to Seattle, was shocked to learn that no food was served. Also, there were no TV monitors to be able to watch a movie.

The staff at the check-in counter was responsive to the long queue and intervened to redirect the traffic: foreigners can't complete check-in without human agents; that is the real line which moves quickly enough. On-boarding and off-boarding were smooth and civilized. Overall the operations were efficient and the experience was pleasant.

Ok, but nothing special. Long flight with no blanket/pillow set.

Flight was delayed by 3 hrs. Forcing missed connection and overnight stay. Terrible.

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.

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.

Much better than I expected. I had an economy ticket so I was really happy the flight was so comfy and the service so generous. Passengers were all polite too.

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

Flight was delayed, we could have been notified earlier and in a consistent manner. App was not refreshing for another passenger to get the latest flight status. We could have stayed and waited at the hotel instead of waiting at the airport had we known the flight was going to delayed for more than 5 hours. The toilet is too tight, and needs to be cleaned more frequently (every hour). The entertainment screen froze, the touch screen not responding to touch. We were upgraded to comfort, it is more comfortable than regular economy seats.

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.

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.

My flight was cencaled due with the bad weather on Sunday the crew was poorly mistaken my luggage supposed depart with my flight instead I didn’t have my luggage for almost 3 days the website is poorly respond to my complain until I have someone to do it my connection smooth their not even respon or email me even the have my luggage

Had a one hour delay due to mechanical issue. I didn’t think I’d be able to make my connecting flight, but they waited for me and greeted me when I arrived to help things run smooth.

O’hsre taxi and deboarding took 40 minutes. Needed 20 minutes extra time between connecting flights to avoid running through terminal.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

Really hard landing... as in slammed into the runway then hit the brakes really hard ...

Every staff member was professional, friendly and courteous. The pizza twist was ok. It was warm but too much dough.

Wonderful in-seat entertainment with seatback screens and huge selection of quality movies. The ability to bluetooth connect headphones was amazing.

Smooth and easy boarding, comfortable for the entire 5 hour flight, and the seat back entertainment was great! I appreciated all the features, from location info and maps, movies, the ability to connect with Bluetooth headphones, and good selection of movies. Food was good, normal airline snacks (I didn’t purchase anything)

Flight left on time and we arrived 25 minutes early! There was a gate available when we arrived so early on a busy Sunday afternoon! Flight attendants came around twice with the drinks cart.

Sitting on the runway after we land for almost two hours! Not sure if we should blame United or Just Dumpy Vance.

Flight was late - I was downgraded from first class to coach

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.

The staff at the check in counter was so rude. Made you feel Incompetent

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.

Flight was scheduled at 9:40pm. Got delayed to 10 am, the next day. crazy

The bag check, flight check-in, and onboard experience convinced my wife and me that we will actively go out of our way to avoid flying Frontier Airlines in the future. At bag check, we were informed that check-in could only be completed via the Frontier mobile app. Unfortunately, the app was extremely frustrating—sending us through repetitive, confusing loops that repeatedly forced us to decline add-on services with nearly every click. While most airline apps upsell, this one felt intentionally exhausting. As the process dragged on, we became genuinely concerned that my phone battery would die before check-in could be completed. We approached the bag check staff—who were standing together talking—and explained both our frustration and our predicament. They laughed. Later, my wife described the interaction as “gaslighting,” which felt accurate. We were then informed it would cost $25 per person simply to have our boarding passes printed. From that point forward, the tone of the experience was consistently hostile. The bag check employees were condescending and combative, behaving more like bullies than customer service staff. Unfortunately, that same attitude continued onboard. One flight attendant argued with me when I attempted to stow my backpack in the overhead bin. I explained that we had each paid $75 to check our bags specifically so we would not need to use carry-on space and could have adequate legroom. She demanded to see my ticket, pointed out that it said “no carry-on”—which I acknowledged—and I reiterated that this was precisely why we paid to check our bags. Her response was, “I don’t make the rules.” She then walked away, but not before asking if I “truly wanted to fly back to Chicago today?”—an unnecessary and unmistakable threat. It is also worth noting that despite booking our tickets together in the same transaction, we were not seated together. Upon our return to Chicago—where we could once again sit together—we compared onboard experiences. We both remarked on how unhappy the flight attendants appeared and how each of us was separately asked whether we would like to purchase a beverage. We declined. At no point was water mentioned as an option, leaving us with the clear impression that even water came at a cost—or that complimentary water, if available at all, was deliberately left unmentioned. Overall, the experience was shocking and deeply disappointing, but it was also a profound learning experience—one we will not forget and will not repeat. -Steve

Plane was hot and miserable and the crew was rude!

12 hour delay required getting on and off plane 3 times - would have at least liked to have been offered a snack or drink

They didn’t offer a water, even after I asked

They switched our terminal 3 times and we were delayed for four plus hours!!!

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

Everything you need to know for your flight to Seattle

Cabin class types available on flights from Denver to Seattle

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