This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25/3. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SEA
22 gen — 29 gen1
Return
1 adult
Economy
The best prices from Denver Intl to Seattle/Tacoma Intl are usually found in April or February, booked 23 days in advance, depart on a Tuesday or Monday and return on a Monday
Cheap flight deals from Denver to Seattle
Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 17 gennaio 2025.
Explore the most affordable flight options available from Denver to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 gennaio 2025.
lun 3/308:52DEN - SEA
1 stop6h 24mFrontier
lun 10/310:29SEA - DEN
1 stop11h 52mFrontier
Deal found 17/1£89
mar 18/206:25DEN - SEA
Nonstop3h 14mDelta
sab 22/220:35SEA - DEN
Nonstop2h 42mDelta
Deal found 16/1£96
mar 11/206:00DEN - SEA
1 stop6h 20mUnited Airlines
lun 17/205:02SEA - DEN
Nonstop2h 42mUnited Airlines
Deal found 16/1£101
gio 6/207:00DEN - SEA
Nonstop3h 19mAlaska Airlines
lun 10/219:45SEA - DEN
Nonstop2h 44mAlaska Airlines
Deal found 16/1£112
dom 2/307:58DEN - SEA
1 stop6h 14mMultiple Airlines
dom 9/308:55SEA - DEN
1 stop4h 36mMultiple Airlines
Deal found 15/1£139
mar 11/209:40DEN - SEA
2 stops7h 55mSouthwest
lun 17/205:00SEA - DEN
Nonstop2h 35mSouthwest
Deal found 16/1£173
Best flights from Denver to Seattle
Discover carefully curated flight deals from Denver to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 gennaio 2025.
mar 18/206:25DEN - SEA
Nonstop3h 14mDelta
sab 22/220:35SEA - DEN
Nonstop2h 42mDelta
Deal found 16/1£96
mar 11/206:00DEN - SEA
1 stop6h 20mUnited Airlines
lun 17/205:02SEA - DEN
Nonstop2h 42mUnited Airlines
Deal found 16/1£101
gio 6/207:00DEN - SEA
Nonstop3h 19mAlaska Airlines
lun 10/219:45SEA - DEN
Nonstop2h 44mAlaska Airlines
Deal found 16/1£112
gio 13/322:50DEN - SEA
Nonstop3h 00mSouthwest
dom 16/305:00SEA - DEN
Nonstop2h 40mSouthwest
Deal found 16/1£128
dom 2/307:58DEN - SEA
1 stop6h 14mMultiple Airlines
dom 9/308:55SEA - DEN
1 stop4h 36mMultiple Airlines
Deal found 15/1£139
dom 2/309:57DEN - SEA
Nonstop3h 05mFrontier
dom 9/314:02SEA - DEN
Nonstop2h 48mFrontier
Deal found 15/1£144
Direct flights from Denver to Seattle
Explore direct flight options from Denver to Seattle based on user searches, and compare prices and availability for your desired travel dates. Data last updated 17 gennaio 2025.
mar 18/206:25DEN - SEA
Nonstop3h 14mDelta
sab 22/220:35SEA - DEN
Nonstop2h 42mDelta
Deal found 16/1£96
gio 6/207:00DEN - SEA
Nonstop3h 19mAlaska Airlines
lun 10/219:45SEA - DEN
Nonstop2h 44mAlaska Airlines
Deal found 16/1£112
dom 2/309:57DEN - SEA
Nonstop3h 05mFrontier
dom 9/314:02SEA - DEN
Nonstop2h 48mFrontier
Deal found 15/1£144
mar 25/321:00DEN - SEA
Nonstop3h 01mUnited Airlines
lun 31/319:17SEA - DEN
Nonstop2h 43mUnited Airlines
Deal found 15/1£145
ven 28/322:50DEN - SEA
Nonstop3h 00mSouthwest
dom 30/305:00SEA - DEN
Nonstop2h 40mSouthwest
Deal found 15/1£186
Last-minute flights from Denver to Seattle
Discover last-minute flight deals from Denver to Seattle. Data last updated 17 gennaio 2025 and is based on user searches.
gio 23/109:40DEN - SEA
2 stops7h 55mSouthwest
gio 30/110:10SEA - DEN
1 stop5h 25mSouthwest
Deal found 15/1£276
ven 24/119:50DEN - SEA
Nonstop3h 17mDelta
dom 26/119:55SEA - DEN
Nonstop2h 47mDelta
Deal found 17/1£284
dom 26/106:00DEN - SEA
1 stop6h 20mUnited Airlines
mer 29/105:00SEA - DEN
Nonstop2h 43mUnited Airlines
Deal found 17/1£289
gio 6/207:00DEN - SEA
Nonstop3h 19mAlaska Airlines
lun 10/219:45SEA - DEN
Nonstop2h 44mAlaska Airlines
Deal found 16/1£112
mar 11/206:00DEN - SEA
1 stop6h 20mUnited Airlines
lun 17/205:02SEA - DEN
Nonstop2h 42mUnited Airlines
Deal found 16/1£101
sab 15/221:45DEN - SEA
Nonstop3h 00mSouthwest
mer 19/210:10SEA - DEN
2 stops7h 15mSouthwest
Deal found 17/1£165
mar 18/206:25DEN - SEA
Nonstop3h 14mDelta
sab 22/220:35SEA - DEN
Nonstop2h 42mDelta
Deal found 16/1£96
One-way flights from Denver to Seattle
Search for one-way flight options from Denver to Seattle. Find affordable one-way fares based on user searches. Data last updated 17 gennaio 2025.
mar 25/305:15DEN - SEA
1 stop7h 35mUnited Airlines
Deal found 17/1£70
mar 15/419:50DEN - SEA
Nonstop3h 07mDelta
Deal found 17/1£73
mar 22/418:37DEN - SEA
1 stop5h 11mAlaska Airlines
Deal found 17/1£88
dom 16/322:45DEN - SEA
Nonstop3h 00mSouthwest
Deal found 17/1£106
Find flights from Denver to Seattle within your budget
Customise your flight search to find flights from Denver to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 17 gennaio 2025.
Fly from
Any airport
Fly to
Any airport
Route
Depart
Return
Price
DenverSeattle
DEN - SEA
DENSEA
Denver Intl
lun 3/3
08:52-14:16
1 stop6h 24m
Seattle/Tacoma Intl
lun 10/3
10:29-23:21
1 stop11h 52m
£89
DenverSeattle
DEN - SEA
DENSEA
Denver Intl
mar 18/2
06:25-08:39
Nonstop3h 14m
Seattle/Tacoma Intl
sab 22/2
20:35-00:17
Nonstop2h 42m
£96
DenverSeattle
DEN - SEA
DENSEA
Denver Intl
mar 11/2
06:00-11:20
1 stop6h 20m
Seattle/Tacoma Intl
lun 17/2
05:02-08:44
Nonstop2h 42m
£101
DenverSeattle
DEN - SEA
DENSEA
Denver Intl
gio 6/2
07:00-09:19
Nonstop3h 19m
Seattle/Tacoma Intl
lun 10/2
19:45-23:29
Nonstop2h 44m
£112
DenverSeattle
DEN - SEA
DENSEA
Denver Intl
dom 2/3
07:58-13:12
1 stop6h 14m
Seattle/Tacoma Intl
dom 9/3
08:55-14:31
1 stop4h 36m
£139
DenverSeattle
DEN - SEA
DENSEA
Denver Intl
mar 11/2
09:40-16:35
2 stops7h 55m
Seattle/Tacoma Intl
lun 17/2
05:00-08:35
Nonstop2h 35m
£173
DenverSeattle
DEN - SEA
DENSEA
Denver Intl
mar 25/3
05:15-11:50
1 stop7h 35m
£70
DenverSeattle
DEN - SEA
DENSEA
Denver Intl
mar 15/4
19:50-21:57
Nonstop3h 07m
£73
DenverSeattle
DEN - SEA
DENSEA
Denver Intl
mar 22/4
18:37-22:48
1 stop5h 11m
£88
DenverSeattle
DEN - SEA
DENSEA
Denver Intl
dom 16/3
22:45-00:45
Nonstop3h 00m
£106
Flights are sorted by cheapest return flights first.
Deals found on 17/1
Best time to book a flight from Denver to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Denver with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Travel insights for flights from Denver to Seattle
Get recent, data-driven insights about flights from Denver to Seattle including ideal travel times, pricing trends, and more.
How far ahead should I book a flight from Denver to Seattle?
Use this chart to determine the optimal time to book a return flight from Denver to Seattle. Price data was last updated on 10 January 2025.
To ensure you get the cheapest price possible for a flight from Denver to Seattle, you should look to book at least 23 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.
What is the cheapest month to book a flight from Denver to Seattle?
Currently, January is the cheapest month in which you can book a flight from Denver to Seattle (average of £622). Flying from Denver to Seattle in July is currently the most expensive (average of £946). 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.
What is the cheapest time of day to fly from DEN to SEA?
Find hourly flight availability from Denver to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 17 gennaio 2025.
It’s typically best to fly out from Denver to Seattle at midday. Doing so could potentially save you 41% on the flight price compared to flying in the afternoon, which is usually more expensive.
Weekly flight availability from Denver to Seattle
Explore weekly flight availability from Denver to Seattle. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 17 gennaio 2025.
The most flights from DEN to SEA are scheduled on a Friday (36 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (18 on average).
Rainfall in Seattle by month
Plan your trip to Seattle by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Seattle ranges from 18.0 - 168.0 inches per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit Seattle when rainfall is around 18.0 mm.
Temperature in Seattle by month
Plan your trip to Seattle by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).
Reviews of airlines servicing Seattle
Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated 17 gennaio 2025.
Read reviews from past customers who have flown Delta, United Airlines and Southwest from Denver to Seattle. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Related info for your journey
Find useful and relevant information for your journey from Denver to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
What airports do I use to fly from Denver to Seattle?
You will need to book a flight from Denver Intl to Seattle/Tacoma Intl if you want to fly from Denver to Seattle. At least 1 airline has flights from Denver Intl (DEN) to Seattle/Tacoma Intl (SEA) on a regular basis. There are 25 flights to Seattle from the Denver airport per day. If you manage to book one that is nonstop, then you can expect the flight time from DEN to SEA to be around 3h 05m.
How popular is this Denver to Seattle flight route?
The Denver Intl to Seattle/Tacoma Intl flight path was viewed by 9 users in the past month. Keep an eye out for changes in search interest prior to high and low season.
What are the cheapest airlines flying from Denver to Seattle round-trip?
Flying on Delta is currently your cheapest option to Seattle, with prices starting at £96. Additional return tickets that might be worth considering are offered by United Airlines and Alaska Airlines, with the lowest prices starting at £101 and £112, respectively. Delta is priced at 33% lower than the current average price of a flight leaving 3 months from now.
What are the cheapest airlines to fly from Denver to Seattle one-way?
The cheapest airline one-way is United Airlines, with whom users have recently found tickets for as low as £70. However, be on the lookout for offers from Delta and Alaska Airlines, as they are both options that can get you from Denver to Seattle for a low price.
What are the most reliable airlines from Denver to Seattle?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Denver to Seattle on time: Aeromexico (100%), Condor (93%), STARLUX Airlines (93%).
What are the cheapest flights from Denver to Seattle?
The cheapest flight price from Denver to Seattle is £2,010. On average you can expect to pay £2,025. The most popular route, (Denver Intl - Seattle/Tacoma Intl), can usually be booked for £104.
Can I find deals for business class flights from Denver to Seattle?
Yes. Cheapflights offers flight deals from Denver to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Denver to Seattle?
Currently, January is the cheapest month in which you can book a flight from Denver to Seattle (average of £622). Flying from Denver to Seattle in July is currently the most expensive (average of £946). 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.
Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 17 gennaio 2025.
Discover the top airline that operate flights from Denver to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 17 gennaio 2025.
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Denver to Seattle?
Deals for Denver to Seattle flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.
Why should you use Cheapflights to find cheap flight tickets from Denver to Seattle?
Cheapflights helps you find that perfect flight to Seattle from Denver by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!
Can Cheapflights find flights from Denver to Seattle with no change fees?
Cheapflights does show flights with no change fees to all users. To see these options for flights from Denver to Seattle, users can toggle the no change fees filter when performing a flight search.
Can Cheapflights notify me if prices for flights from Denver to Seattle become cheaper?
Not ready to book yet? You can track prices for flights from Denver to Seattle on Cheapflights with our Price Alert feature and get notified when better prices are available.
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
We value your privacy
Cheapflights and its partners wish to use cookies or similar technologies to store and/or access information on and about your device and process personal data such as your IP address, device identifiers etc., in order to improve your experience on the site, to analyse navigation, to offer and measure personalised advertising, and to facilitate sharing on social networks. We also allow the use of third-party cookies (including those from our advertising partners) on our sites.
By clicking 'Accept', you consent to your data being processed by 0 vendors on this web site for the purposes described in this notice. You can review the vendors and their individual processing purposes on the vendor list.
To review individual processing purposes and cookie categories, please click ’Select individual purposes’. You can review your choices and withdraw your consent at any time by clicking the ’Privacy Preferences’ link in the page side navigation.