
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $191 (Kiwi.com) |
One-way from | $116 (Frontier) |
Popular in | June |
Cheapest in | January |
Average price | $312 |
Good round-trip deal | $296 or less |
Good one-way deal | $173 or less |
Fly from
Fly to
Route
Depart
Return
DenverSeattle
DEN - SEA
DENSEA
Denver Intl
Thu 8/6
6:43 pm-8:45 pm
Nonstop3h 02m
Seattle/Tacoma Intl
Tue 8/11
1:55 pm-5:48 pm
Nonstop2h 53m
DenverSeattle
DEN - SEA
DENSEA
Denver Intl
Wed 8/26
6:43 pm-8:45 pm
Nonstop3h 02m
Seattle/Tacoma Intl
Sun 8/30
8:07 pm-11:58 pm
Nonstop2h 51m
DenverSeattle
DEN - SEA
DENSEA
Denver Intl
Tue 7/21
6:55 pm-11:15 pm
1 stop5h 20m
Seattle/Tacoma Intl
Sat 7/25
5:30 am-1:50 pm
2 stops7h 20m
DenverSeattle
DEN - SEA
DENSEA
Denver Intl
Fri 9/25
10:15 am-5:05 pm
2 stops7h 50m
Seattle/Tacoma Intl
Wed 9/30
5:20 am-1:30 pm
1 stop7h 10m
DenverSeattle
DEN - SEA
DENSEA
Denver Intl
Wed 9/2
2:40 pm-9:15 pm
2 stops7h 35m
Seattle/Tacoma Intl
Fri 9/4
11:50 am-6:45 pm
1 stop5h 55m
DenverSeattle
DEN - SEA
DENSEA
Denver Intl
Tue 8/4
2:40 pm-9:15 pm
2 stops7h 35m
Seattle/Tacoma Intl
Thu 8/6
5:00 am-2:20 pm
2 stops8h 20m
DenverSeattle
DEN - SEA
DENSEA
Denver Intl
Mon 8/3
8:35 pm-12:55 am
1 stop5h 20m
Seattle/Tacoma Intl
Sat 8/8
9:20 am-7:35 pm
2 stops9h 15m
DenverSeattle
DEN - SEA
DENSEA
Denver Intl
Tue 7/21
6:15 am-1:35 pm
2 stops8h 20m
Seattle/Tacoma Intl
Thu 7/23
6:30 am-2:10 pm
1 stop6h 40m
DenverSeattle
DEN - SEA
DENSEA
Denver Intl
Tue 8/4
2:40 pm-9:15 pm
2 stops7h 35m
Seattle/Tacoma Intl
Tue 8/11
12:40 pm-9:20 pm
2 stops7h 40m
DenverSeattle
DEN - SEA
DENSEA
Denver Intl
Thu 8/6
10:15 am-5:05 pm
2 stops7h 50m
Seattle/Tacoma Intl
Sat 8/15
5:30 am-2:25 pm
2 stops7h 55m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
To ensure you get the cheapest price possible for a flight from Denver to Seattle, you should look to book at least 46 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Currently, January is the cheapest month in which you can book a flight from Denver to Seattle (average of $139). Flying from Denver to Seattle in June is currently the most expensive (average of $312). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
When flying from Denver to Seattle, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 20% versus a flight at noon.
Travelers seeking maximum savings on their Denver to Seattle flight should consider departing on Friday evenings when fares are most often at their lowest. Tuesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
About 19% of weekly flights between Denver and Seattle have experienced delays in the past year, with the average delay time being 141 minutes.
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.
Tuesday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.
Over the last year, United Airlines have had the lowest number of delays on this route, with just 14% of flights being delayed.
Comfort
Overall
Entertainment
Boarding
Food
Crew
Reviews
Anonymous,Jun 2026
RDU - SEA
Comfort
Overall
Entertainment
Boarding
Food
Crew
Reviews
Anonymous,Jun 2026
RDU - SEA
Comfort
Overall
Entertainment
Boarding
Food
Crew
Reviews
Anonymous,Jun 2026
RDU - SEA
Comfort
Overall
Entertainment
Boarding
Food
Crew
Reviews
Anonymous,Jun 2026
RDU - SEA
Comfort
Overall
Entertainment
Boarding
Food
Crew
Reviews
Anonymous,Jun 2026
RDU - SEA
Comfort
Overall
Entertainment
Boarding
Food
Crew
Reviews
Anonymous,Jun 2026
RDU - SEA
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$55 | Average$189 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$84 | Average$229 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$88 | Average$223 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$116 | Average$310 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$117 | Average$294 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$126 | Average$296 | FlexibilityNo cancel fee | On-time75% |