Find Cheap Flights from Seattle/Tacoma Intl to Denver International (SEA - DEN)

Search hundreds of travel sites at once for deals on flights to Denver International

Depart
Return
Any month
Compare vs. KAYAK |

Seattle/Tacoma Intl to Denver International Flight Information

Avg. Flight Duration 2h 52m
Flights Arrive in Denver International
Flights Depart from Seattle/Tacoma Intl
Flight Price $107
Distance 1,022 miles
Airlines Frontier, Spirit Airlines, Alaska Airlines, United Airlines, Delta

Good to Know

Low Season:
January
Best time to beat the crowds
3%
expected price decrease
High Season:
July
Most popular time to fly
21%
expected price increase
Average Price:
$201
(avg. price over the last 2 weeks)
Good Deal:
$148
or less (round trip)

When to Book Flights from Seattle/Tacoma Intl to Denver International

Estimated round-trip price
Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top Tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $148 or less.
The cheapest flight from Seattle/Tacoma Intl to Denver International was found 27 days before departure, on average.
Book at least 2 weeks before departure in order to get a below-average price.
High season is considered to be June, July and August. The cheapest month to fly is January.
Morning departure is around 27% 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 Seattle/Tacoma Intl to Denver International Flights

How long does a flight from Seattle/Tacoma Intl to Denver International take?
An average nonstop flight takes 2h 30m, covering a distance of 1022 miles.
How many flights are there between Seattle/Tacoma Intl and Denver International?
There are 662 (nonstop) flights between Seattle/Tacoma Intl and Denver International per week, averaging 91 per day.
Which airlines provide the cheapest flights from Seattle/Tacoma Intl to Denver International?
In the past 3 days, the cheapest round-trip tickets were found on Frontier ($107), Spirit Airlines ($128) and Alaska Airlines ($137).
Do I need a passport to fly between Seattle/Tacoma Intl and Denver International?
No.
Which airlines fly most frequently between Seattle/Tacoma Intl and Denver International?
United Airlines (16 times daily), Alaska Airlines (13 times daily), Delta (10 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly Seattle/Tacoma Intl to Denver International?
For Seattle/Tacoma Intl to Denver International, Tuesday is the cheapest day to fly on average and Monday is the most expensive. Flying from Denver International back to Seattle/Tacoma Intl, the best deals are generally found on Thursday, with Sunday being the most expensive.

Book cheap flights from Seattle/Tacoma Intl to Denver International (round-trip)

Airports
Origin
Seattle
$107
only
$107
Destination
Denver
$107
only
$107
Tue, Dec 4
SEA
Seattle/Tacoma Intl
DEN
Denver International
2h 43m
Wed, Dec 5
DEN
Denver International
SEA
Seattle/Tacoma Intl
3h 05m
Trip: 2 days
4.9OkayShow reviews
Overall 4.9 Okay
Based on 481 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
SEA
DEN
Mediocre 2.0

Cons: I am handicapped. Can't stand very well or for very long. I had to stand in line for over 2 hrs. They didnt open the check in until 2 hrs before boarding. Then it was almost 15 to 20 minutes for them to check us in once they were there. I was Furious over the $45 each for the 2 bags I had. Terrible s huh ock.. a friend had 3 bags and was required to pay $170... Had to pay for pop. Wow... the seats were tiny and no padding

SEA
DEN
Okay 5.0

Pros: Crew was sweet and very helpful when I was sick

Cons: Take off and landing were very rough. So much so that I vomited during descent.

SEA
DEN
Mediocre 2.3

Pros: The flight arrives safely into Denver

Cons: We had to take a bus to the plane. The buses the shuttled us on, they packed tight and without apology. We then sat in our seats for over an hour on the tarmac without explanation or apologies or any courtesy shown at all to the woman who dared to get up to use the lavatory and was scorned by the crew. When we got to our destination. The crew did not even apologize for the hour delay in landing or even mention it.

SEA
DEN
Excellent 8.0

Pros: Plane interior was bright and new.

Cons: Baggage retrieval. Chairs don't recline.

SEA
DEN
Good 6.0

Pros: Plenty of leg room.

Cons: Everything must be bought from Frontier. There are no complimentary items. Blankets and pillows were not available either.

Thu, Nov 29
SEA
Seattle/Tacoma Intl
DEN
Denver International
7h 32m
Thu, Dec 6
DEN
Denver International
SEA
Seattle/Tacoma Intl
3h 04m
Trip: 8 days
5.5OkayShow reviews
Overall 5.5 Okay
Based on 57,463 reviews
Overall
5.7
Boarding
6.1
Comfort
5.3
Crew
6.5
Entertainment
4.6
Food
4.7
LAX
PHL
Excellent 10.0

Pros: Direct flight easy checking and broading Friendly helpful staff

Cons: Seating not very comfortable That I had to purchase seats on the way back

DTW
MCO
Excellent 10.0

Pros: Everything !!! Everything was perfect as usually!!!

MCI
MCO
Excellent 10.0

Pros: On time

Cons: No drinks NOT EVEN WATER

ACY
FLL
Good 6.0

Pros: Crew was nice, polite, helpful. Flights were on time. Food and entertainment are not offered/not part of this flight but NA was not an option for rating.

Cons: Typical Spirit stuff - trays are small, not the best seats.

MCO
DTW
Excellent 8.0

Pros: Didn’t like paying $99 to change flights

Tue, Jan 8
SEA
Seattle/Tacoma Intl
DEN
Denver International
2h 30m
Wed, Jan 16
DEN
Denver International
SEA
Seattle/Tacoma Intl
3h 06m
Trip: 9 days
8.5ExcellentShow reviews
Overall 8.5 Excellent
Based on 232 reviews
Overall
8.6
Boarding
8.6
Comfort
8.3
Crew
8.9
Entertainment
7.9
Food
7.9
SEA
DEN
Excellent 10.0

Cons: i wish Alaska would fly straight to Denver from Montana. I fly from Montana to Denver a lot and it ends up being a whole day of travel instead of a couple hour flight.

SEA
DEN
Okay 5.3

Pros: It was a short flight. The overhead bins weren't overloaded.

Cons: Boarding was a hassle. The flight was too crowded. The food was non-existent.. Seats were uncomfortable.

SEA
DEN
Excellent 10.0

Pros: Management as well as staff nice...First trip with Alaska and made my trip nice .. Got a good deal price too.

Cons: Nothing.

SEA
DEN
Okay 4.0

Cons: Two rows up from us, I kid threw up all over the center aisle as we were pulling away from the gate. We returned to the gate to allow a cleaning crew to board and clean. However, the cleaning job was rushed and left remnants of the throw up behind which smelled the whole 2.5 hour flight. It really felt unsanitary and unsafe being that it’s unknown what caused the child to get sick. It very well could have been a stomach virus and could have infected the people in rows around the incident due to the mediocre cleaning job. I understand that it’s important to keep flights on-time, especially for connecting flights, but the safety of the passengers and their health should ALWAYS be the #1 priority.

SEA
DEN
Okay 4.0

Pros: Plane very warm, not comfortable. Only one pass for beverage service.

Cons: Very warm air vents did not work.

Mon, Jan 21
SEA
Seattle/Tacoma Intl
DEN
Denver International
10h 05m
Tue, Jan 29
DEN
Denver International
SEA
Seattle/Tacoma Intl
26h 14m
Trip: 9 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Nov 27
SEA
Seattle/Tacoma Intl
DEN
Denver International
2h 36m
Thu, Dec 6
DEN
Denver International
SEA
Seattle/Tacoma Intl
3h 04m
Trip: 10 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 93 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
SEA
DEN
Okay 5.0

Cons: Delay in connecting flight from Seattle to Denver caused us to board our plane to Grand Rapids moments before the doors closed. Had we missed our flight, an unpaid work day would have incurred as we would not have arrived in Grand Rapids until the following afternoon.

SEA
DEN
Mediocre 2.0

Cons: Late by 3 hours

SEA
DEN
Excellent 9.3

Pros: View

Cons: Over an hour delay

SEA
DEN
Mediocre 2.0

Pros: Flight was smooth and on time

Cons: The boarding gate attendants were rude and uncaring when we asked them to help us switch pre-assigned seats to ensure our two year old sat with us. While we might have understood better had they been empathetic, they were rude and uncaring and said when you book online you sign a waiver and they can not do anything about this. Wow. This was our flight back. Originally on the way to our destination we had used Delta and that customer service experience was completely different even though that flight was full too. Never flying United again as long as I can avoid it.

SEA
DEN
Good 6.0

Pros: The flight

Cons: The time

Mon, Dec 10
SEA
Seattle/Tacoma Intl
DEN
Denver International
2h 40m
Tue, Dec 11
DEN
Denver International
SEA
Seattle/Tacoma Intl
3h 04m
Trip: 2 days
8.5ExcellentShow reviews
Overall 8.5 Excellent
Based on 17 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.7
Food
7.4
LGA
DEN
Good 7.3

Pros: The crew on the airplane was great. We had 2.5 hours turbulences but the crew started to give out drinks as soon they got the ok from the pilot

Cons: We went in LGA to the Baggage drop off and the employee there was super rude. On the flight to New York with Delta we had to check our carry ons at the gate because it wasn't enough room for bags in the airplane.so we asked when we checked our one suitcase if we can/should check our carry ons to avoid having to do it at the gate. The delta employee told me sure no problem. He checks in my one suitcase I purchased gives me the tracking paper and says ok have a good flight. I asked him so what is with our carry ons and he told us that that would cost 25$ and we can't check those in at the drop off?!?We ended up taking the carry ons with to the gate and then off course there wasn't enough room on the airplane that we had to check it in. And surprise it was free?? We had never issues with Lufthansa, icelandair etc. with checking our bags at drop off to not needing to carry it around and than still end up to check it at the airplane. Every airline has been more than happy that we volunteer to check our bags that they don't have the trouble at the gate.

SEA
DEN
Good 6.0

Cons: Seats were uncomfortable

ATL
PIT
Mediocre 3.3

Pros: Not much, hardly anything

Cons: The service in First Class, absolutely terrible

SEA
DEN
Excellent 10.0

Pros: The staff of the flight were very friendly and attentive. They were great!

SEA
DEN
Excellent 8.0

Pros: free texting and entertainment!

Cons: our flight was delayed half an hour.

Fri, Nov 30
SEA
Seattle/Tacoma Intl
DEN
Denver International
2h 42m
Tue, Dec 4
DEN
Denver International
SEA
Seattle/Tacoma Intl
3h 04m
Trip: 5 days
4.9OkayShow reviews
Overall 4.9 Okay
Based on 481 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
SEA
DEN
Excellent 8.0

Pros: Plane interior was bright and new.

Cons: Baggage retrieval. Chairs don't recline.

SEA
DEN
Mediocre 2.0

Cons: I am handicapped. Can't stand very well or for very long. I had to stand in line for over 2 hrs. They didnt open the check in until 2 hrs before boarding. Then it was almost 15 to 20 minutes for them to check us in once they were there. I was Furious over the $45 each for the 2 bags I had. Terrible s huh ock.. a friend had 3 bags and was required to pay $170... Had to pay for pop. Wow... the seats were tiny and no padding

SEA
DEN
Mediocre 2.3

Pros: The flight arrives safely into Denver

Cons: We had to take a bus to the plane. The buses the shuttled us on, they packed tight and without apology. We then sat in our seats for over an hour on the tarmac without explanation or apologies or any courtesy shown at all to the woman who dared to get up to use the lavatory and was scorned by the crew. When we got to our destination. The crew did not even apologize for the hour delay in landing or even mention it.

SEA
DEN
Okay 5.3

Pros: Happy and helpful crew even though there were many upset and stressed out travelers.

Cons: Extremely long lines at check-in at SeaTac, over 1 hour spent in line just to drop off a bag. My flight plus the two before me were delayed.

SEA
DEN
Mediocre 2.6

Pros: Nothing

Cons: Plane was 2 hours delayed

Sat, Dec 1
SEA
Seattle/Tacoma Intl
DEN
Denver International
7h 32m
Tue, Dec 4
DEN
Denver International
SEA
Seattle/Tacoma Intl
3h 04m
Trip: 4 days
5.5OkayShow reviews
Overall 5.5 Okay
Based on 57,463 reviews
Overall
5.7
Boarding
6.1
Comfort
5.3
Crew
6.5
Entertainment
4.6
Food
4.7
ATL
LAX
Excellent 10.0

Pros: Cheap flight

Cons: No food and expensive luggage cost.

ACY
FLL
Good 6.0

Pros: Crew was nice, polite, helpful. Flights were on time. Food and entertainment are not offered/not part of this flight but NA was not an option for rating.

Cons: Typical Spirit stuff - trays are small, not the best seats.

TPA
ATL
Excellent 10.0

Pros: Great flight for the money, reserved 24 hours prior

MCI
MCO
Excellent 10.0

Pros: On time

Cons: No drinks NOT EVEN WATER

MCO
DTW
Excellent 8.0

Pros: Didn’t like paying $99 to change flights

Fri, Nov 30
SEA
Seattle/Tacoma Intl
DEN
Denver International
2h 42m
Tue, Dec 4
DEN
Denver International
SEA
Seattle/Tacoma Intl
3h 04m
Trip: 5 days
4.9OkayShow reviews
Overall 4.9 Okay
Based on 481 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
SEA
DEN
Mediocre 2.3

Pros: The flight arrives safely into Denver

Cons: We had to take a bus to the plane. The buses the shuttled us on, they packed tight and without apology. We then sat in our seats for over an hour on the tarmac without explanation or apologies or any courtesy shown at all to the woman who dared to get up to use the lavatory and was scorned by the crew. When we got to our destination. The crew did not even apologize for the hour delay in landing or even mention it.

SEA
DEN
Mediocre 2.6

Pros: Nothing

Cons: Plane was 2 hours delayed

SEA
DEN
Okay 5.0

Pros: Crew was sweet and very helpful when I was sick

Cons: Take off and landing were very rough. So much so that I vomited during descent.

SEA
DEN
Excellent 8.0

Pros: Plane interior was bright and new.

Cons: Baggage retrieval. Chairs don't recline.

SEA
DEN
Okay 5.3

Pros: Happy and helpful crew even though there were many upset and stressed out travelers.

Cons: Extremely long lines at check-in at SeaTac, over 1 hour spent in line just to drop off a bag. My flight plus the two before me were delayed.

Sat, Jan 19
SEA
Seattle/Tacoma Intl
DEN
Denver International
2h 30m
Wed, Jan 30
DEN
Denver International
SEA
Seattle/Tacoma Intl
3h 12m
Trip: 12 days
8.5ExcellentShow reviews
Overall 8.5 Excellent
Based on 232 reviews
Overall
8.6
Boarding
8.6
Comfort
8.3
Crew
8.9
Entertainment
7.9
Food
7.9
SEA
DEN
Mediocre 2.0

Cons: I missed the flight

SEA
DEN
Good 7.6

Pros: - Crew was friendly as usual

Cons: - The plane was a bit older, so the seats were not as comfortable as most Alaska flights

SEA
DEN
Okay 4.0

Pros: Plane very warm, not comfortable. Only one pass for beverage service.

Cons: Very warm air vents did not work.

SEA
DEN
Mediocre 2.8

Cons: Employees who just don't care

SEA
DEN
Excellent 9.3

Pros: Comfortable seats with nice details; power ports; drinks and snacks.

Cons: Boarding in Seattle was ridiculous. Security took a massive amount of time, and we barely arrived in time for th flight despite arriving hours early. The attendants at the gate were a bit rude and begrudgingly accommodating.

Thu, Dec 6
SEA
Seattle/Tacoma Intl
DEN
Denver International
7h 32m
Tue, Dec 11
DEN
Denver International
SEA
Seattle/Tacoma Intl
3h 04m
Trip: 6 days
5.5OkayShow reviews
Overall 5.5 Okay
Based on 57,463 reviews
Overall
5.7
Boarding
6.1
Comfort
5.3
Crew
6.5
Entertainment
4.6
Food
4.7
MCI
MCO
Excellent 10.0

Pros: On time

Cons: No drinks NOT EVEN WATER

ATL
LAX
Excellent 10.0

Pros: Cheap flight

Cons: No food and expensive luggage cost.

RSW
MSP
Good 6.0

Pros: price on time

Cons: people do not get out of the way when boarding so the process was very slow attedndants could help get people to oveb into the seating aear to allow others to pass and then worry about their overhead luggage more communication about this before borading would be helpfuol people were ignoring rhe one personal item rule so theier was a lot of extra bags which also slowed the process

LAX
PHL
Excellent 10.0

Pros: Direct flight easy checking and broading Friendly helpful staff

Cons: Seating not very comfortable That I had to purchase seats on the way back

TPA
ATL
Excellent 10.0

Pros: Great flight for the money, reserved 24 hours prior

Mon, Dec 3
SEA
Seattle/Tacoma Intl
DEN
Denver International
10h 03m
Tue, Dec 4
DEN
Denver International
SEA
Seattle/Tacoma Intl
3h 04m
Trip: 2 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Nov 28
SEA
Seattle/Tacoma Intl
DEN
Denver International
2h 31m
Thu, Dec 6
DEN
Denver International
SEA
Seattle/Tacoma Intl
3h 04m
Trip: 9 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 93 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
SEA
DEN
Good 6.0

Pros: It left on time and arrived early.

Cons: One of the flight attendants was particularly snippy with everyone.

SEA
DEN
Excellent 10.0

Pros: Sat by united pilot who was just on flight to go to training and was with my 10 mo old daughter and was absolutley wonderful, so helpful and Im sure it was not an ideal situation for him. On second flight we sat next to flight attendant and a trainee and made our first flight trip... that could have been awful great! Big thanks to all the staff.

SEA
DEN
Mediocre 2.0

Pros: Flight was smooth and on time

Cons: The boarding gate attendants were rude and uncaring when we asked them to help us switch pre-assigned seats to ensure our two year old sat with us. While we might have understood better had they been empathetic, they were rude and uncaring and said when you book online you sign a waiver and they can not do anything about this. Wow. This was our flight back. Originally on the way to our destination we had used Delta and that customer service experience was completely different even though that flight was full too. Never flying United again as long as I can avoid it.

SEA
DEN
Excellent 9.3

Pros: View

Cons: Over an hour delay

SEA
DEN
Okay 5.0

Cons: Delay in connecting flight from Seattle to Denver caused us to board our plane to Grand Rapids moments before the doors closed. Had we missed our flight, an unpaid work day would have incurred as we would not have arrived in Grand Rapids until the following afternoon.

Sat, Jan 26
SEA
Seattle/Tacoma Intl
DEN
Denver International
2h 30m
Tue, Jan 29
DEN
Denver International
SEA
Seattle/Tacoma Intl
3h 13m
Trip: 4 days
8.5ExcellentShow reviews
Overall 8.5 Excellent
Based on 232 reviews
Overall
8.6
Boarding
8.6
Comfort
8.3
Crew
8.9
Entertainment
7.9
Food
7.9
SEA
DEN
Good 7.6

Pros: - Crew was friendly as usual

Cons: - The plane was a bit older, so the seats were not as comfortable as most Alaska flights

SEA
DEN
Mediocre 2.0

Cons: I missed the flight

SEA
DEN
Okay 4.0

Pros: Plane very warm, not comfortable. Only one pass for beverage service.

Cons: Very warm air vents did not work.

SEA
DEN
Excellent 10.0

Cons: boarding was late due to repairs on the plane

SEA
DEN
Excellent 10.0

Cons: i wish Alaska would fly straight to Denver from Montana. I fly from Montana to Denver a lot and it ends up being a whole day of travel instead of a couple hour flight.

Tue, Dec 25
SEA
Seattle/Tacoma Intl
DEN
Denver International
2h 50m
Sat, Jan 12
DEN
Denver International
SEA
Seattle/Tacoma Intl
3h 12m
Trip: 19 days
8.5ExcellentShow reviews
Overall 8.5 Excellent
Based on 17 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.7
Food
7.4
MSP
EWR
Okay 5.5

Pros: Nice crew

Cons: Late flight due to ground hold EWR. Two screaming kids immediately behind me.

LGA
DEN
Good 7.3

Pros: The crew on the airplane was great. We had 2.5 hours turbulences but the crew started to give out drinks as soon they got the ok from the pilot

Cons: We went in LGA to the Baggage drop off and the employee there was super rude. On the flight to New York with Delta we had to check our carry ons at the gate because it wasn't enough room for bags in the airplane.so we asked when we checked our one suitcase if we can/should check our carry ons to avoid having to do it at the gate. The delta employee told me sure no problem. He checks in my one suitcase I purchased gives me the tracking paper and says ok have a good flight. I asked him so what is with our carry ons and he told us that that would cost 25$ and we can't check those in at the drop off?!?We ended up taking the carry ons with to the gate and then off course there wasn't enough room on the airplane that we had to check it in. And surprise it was free?? We had never issues with Lufthansa, icelandair etc. with checking our bags at drop off to not needing to carry it around and than still end up to check it at the airplane. Every airline has been more than happy that we volunteer to check our bags that they don't have the trouble at the gate.

PBI
ATL
Excellent 10.0

Pros: Terrific service.

Cons: Everything was great.

SEA
DEN
Good 6.3

Pros: I love the new snack choices! Way to go Delta for offering Kind bars now!! This is awesome.

Cons: Tiny old plane, props blocked my window view, no entertainment system.

SJC
LAS
Good 7.0

Cons: Delta always has 1 or maybe 2 people checking everyone in, including the baggage drop. So, EVERYONE has to wait for one person to finish checking in the first class passenger with a thousand needs. Very poor service as is their norm.

Thu, Nov 29
SEA
Seattle/Tacoma Intl
DEN
Denver International
7h 32m
Mon, Dec 3
DEN
Denver International
SEA
Seattle/Tacoma Intl
10h 45m
Trip: 5 days
5.5OkayShow reviews
Overall 5.5 Okay
Based on 57,463 reviews
Overall
5.7
Boarding
6.1
Comfort
5.3
Crew
6.5
Entertainment
4.6
Food
4.7
TPA
DTW
Excellent 10.0

Pros: Pilot announcements & flight attendant courtesy

RSW
MSP
Good 6.0

Pros: price on time

Cons: people do not get out of the way when boarding so the process was very slow attedndants could help get people to oveb into the seating aear to allow others to pass and then worry about their overhead luggage more communication about this before borading would be helpfuol people were ignoring rhe one personal item rule so theier was a lot of extra bags which also slowed the process

MCI
MCO
Excellent 10.0

Pros: On time

Cons: No drinks NOT EVEN WATER

TPA
ATL
Excellent 10.0

Pros: Great flight for the money, reserved 24 hours prior

DTW
MCO
Excellent 10.0

Pros: Everything !!! Everything was perfect as usually!!!

Mon, Nov 26
SEA
Seattle/Tacoma Intl
DEN
Denver International
2h 42m
Wed, Dec 5
DEN
Denver International
SEA
Seattle/Tacoma Intl
3h 09m
Trip: 10 days
4.9OkayShow reviews
Overall 4.9 Okay
Based on 481 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
SEA
DEN
Okay 4.6

Pros: Easy check in

Cons: Seats, space, comfort

SEA
DEN
Good 6.0

Pros: Plenty of leg room.

Cons: Everything must be bought from Frontier. There are no complimentary items. Blankets and pillows were not available either.

SEA
DEN
Excellent 8.0

Pros: Plane interior was bright and new.

Cons: Baggage retrieval. Chairs don't recline.

SEA
DEN
Mediocre 2.0

Cons: Missed my connecting flight by minutes. Frontier airline would only put me on a flight that got me to my destination a full day later.

SEA
DEN
Mediocre 2.0

Pros: Ease of connecting flights

Cons: Lost my luggage, delayed red eye, extra connecting flight , lost my luggage

Tue, Dec 4
SEA
Seattle/Tacoma Intl
DEN
Denver International
2h 31m
Thu, Dec 6
DEN
Denver International
SEA
Seattle/Tacoma Intl
3h 04m
Trip: 3 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 93 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
SEA
DEN
Okay 5.0

Cons: Delay in connecting flight from Seattle to Denver caused us to board our plane to Grand Rapids moments before the doors closed. Had we missed our flight, an unpaid work day would have incurred as we would not have arrived in Grand Rapids until the following afternoon.

SEA
DEN
Excellent 9.3

Pros: View

Cons: Over an hour delay

SEA
DEN
Good 6.0

Pros: The flight

Cons: The time

SEA
DEN
Excellent 10.0

Pros: Sat by united pilot who was just on flight to go to training and was with my 10 mo old daughter and was absolutley wonderful, so helpful and Im sure it was not an ideal situation for him. On second flight we sat next to flight attendant and a trainee and made our first flight trip... that could have been awful great! Big thanks to all the staff.

SEA
DEN
Mediocre 2.0

Pros: Flight was smooth and on time

Cons: The boarding gate attendants were rude and uncaring when we asked them to help us switch pre-assigned seats to ensure our two year old sat with us. While we might have understood better had they been empathetic, they were rude and uncaring and said when you book online you sign a waiver and they can not do anything about this. Wow. This was our flight back. Originally on the way to our destination we had used Delta and that customer service experience was completely different even though that flight was full too. Never flying United again as long as I can avoid it.

Sat, Feb 2
SEA
Seattle/Tacoma Intl
DEN
Denver International
2h 51m
Wed, Feb 6
DEN
Denver International
SEA
Seattle/Tacoma Intl
3h 12m
Trip: 5 days
8.5ExcellentShow reviews
Overall 8.5 Excellent
Based on 17 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.7
Food
7.4
LGA
DEN
Good 7.3

Pros: The crew on the airplane was great. We had 2.5 hours turbulences but the crew started to give out drinks as soon they got the ok from the pilot

Cons: We went in LGA to the Baggage drop off and the employee there was super rude. On the flight to New York with Delta we had to check our carry ons at the gate because it wasn't enough room for bags in the airplane.so we asked when we checked our one suitcase if we can/should check our carry ons to avoid having to do it at the gate. The delta employee told me sure no problem. He checks in my one suitcase I purchased gives me the tracking paper and says ok have a good flight. I asked him so what is with our carry ons and he told us that that would cost 25$ and we can't check those in at the drop off?!?We ended up taking the carry ons with to the gate and then off course there wasn't enough room on the airplane that we had to check it in. And surprise it was free?? We had never issues with Lufthansa, icelandair etc. with checking our bags at drop off to not needing to carry it around and than still end up to check it at the airplane. Every airline has been more than happy that we volunteer to check our bags that they don't have the trouble at the gate.

SEA
DEN
Excellent 9.3

Pros: In a pinch they were able t

MSP
EWR
Okay 5.5

Pros: Nice crew

Cons: Late flight due to ground hold EWR. Two screaming kids immediately behind me.

SJC
LAS
Good 7.0

Cons: Delta always has 1 or maybe 2 people checking everyone in, including the baggage drop. So, EVERYONE has to wait for one person to finish checking in the first class passenger with a thousand needs. Very poor service as is their norm.

LGA
CMH
Good 7.5

Cons: Crying baby

Mon, Dec 3
SEA
Seattle/Tacoma Intl
DEN
Denver International
10h 03m
Thu, Dec 6
DEN
Denver International
SEA
Seattle/Tacoma Intl
3h 04m
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Show more results
*
Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an and someone from our team will get back to you promptly.

^
The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.