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$28+ Cheap flights from Seattle to Denver (SEA - DEN)

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 2/18. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — DEN
Nov 19 — Nov 261
1 adult
Tue 11/19
Tue 11/26
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The best prices from Seattle/Tacoma Intl to Denver Intl are usually found in January or March, booked 69 days in advance, depart on a Tuesday or Wednesday and return on a Saturday

Cheap flight deals from Seattle to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Denver (DEN). 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 November 14, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

December

Cheapest in

January

Round-trip from

$82
(Cheapflightsfares)

One-way from

$28
(Cheapflightsfares)
Provider with most accurate pricing for Seattle/Tacoma Intl-Denver Intl flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Denver Intl flights.
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High demand for flights, 28% potential price rise
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Best time to find cheap flights, 20% potential price drop
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From Seattle/Tacoma Intl to Denver Intl
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One-way flight from Seattle/Tacoma Intl to Denver Intl
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Find flight deals from Seattle to Denver

Cheapest flights from Seattle to Denver
Explore the most affordable flight options available from Seattle to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 14, 2024.

This Cheapflightsfares deal was found by Cheapflights users on 11/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/62:34 pmSEA - DEN
Nonstop2h 45mFrontier
Mon 12/911:24 amDEN - SEA
Nonstop3h 10mFrontier
Deal found 11/14$96
This Expedia deal was found by Cheapflights users on 11/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/53:09 pmSEA - DEN
Nonstop2h 44mMultiple Airlines
Tue 12/104:56 pmDEN - SEA
Nonstop3h 07mMultiple Airlines
Deal found 11/14$133
This Delta deal was found by Cheapflights users on 11/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/77:55 pmSEA - DEN
Nonstop2h 49mDelta
Sat 12/147:45 pmDEN - SEA
Nonstop3h 25mDelta
Deal found 11/14$157
This United Airlines deal was found by Cheapflights users on 11/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/105:00 amSEA - DEN
Nonstop2h 47mUnited Airlines
Wed 12/117:45 amDEN - SEA
1 stop8h 36mUnited Airlines
Deal found 11/14$169
This Alaska Airlines deal was found by Cheapflights users on 11/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/138:23 pmSEA - DEN
Nonstop2h 36mAlaska Airlines
Sun 12/229:50 pmDEN - SEA
Nonstop3h 09mAlaska Airlines
Deal found 11/14$187
This Southwest deal was found by Cheapflights users on 11/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/75:10 amSEA - DEN
Nonstop2h 35mSouthwest
Thu 12/196:00 pmDEN - SEA
2 stops7h 30mSouthwest
Deal found 11/14$232

Find flights from Seattle to Denver within your budget

Customize your flight search to find flights from Seattle to Denver 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 2,752,363 searches. Data last updated November 14, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Fri 12/6

2:34 pm-6:19 pm

Nonstop2h 45m

Denver Intl

Mon 12/9

11:24 am-1:34 pm

Nonstop3h 10m

$96

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Thu 12/5

3:09 pm-6:53 pm

Nonstop2h 44m

Denver Intl

Tue 12/10

4:56 pm-7:03 pm

Nonstop3h 07m

$133

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Tue 1/7

3:15 pm-6:57 pm

Nonstop2h 42m

Denver Intl

Tue 1/14

6:25 am-8:39 am

Nonstop3h 14m

$157

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Tue 12/10

5:00 am-8:47 am

Nonstop2h 47m

Denver Intl

Wed 12/11

7:45 am-3:21 pm

1 stop8h 36m

$169

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Thu 12/12

8:24 pm-11:59 pm

Nonstop2h 35m

Denver Intl

Tue 12/17

12:45 pm-6:01 pm

1 stop6h 16m

$181

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Sat 1/25

6:10 am-3:19 pm

1 stop8h 09m

Denver Intl

Wed 1/29

11:24 am-8:00 pm

1 stop9h 36m

$198

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Mon 1/20

5:55 am-12:50 pm

1 stop5h 55m

Denver Intl

Tue 1/21

8:40 pm-10:40 pm

Nonstop3h 00m

$227

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Tue 12/24

9:36 pm-1:21 am

Nonstop2h 45m

$58

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Sat 12/7

5:00 am-8:47 am

Nonstop2h 47m

$79

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Sun 12/15

7:55 pm-11:44 pm

Nonstop2h 49m

$94

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/14

Showing 1-10 of 15 results
1
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Compare providers for flights from Seattle to Denver

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Denver in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*1 star
PricelinePrice Accuracy1 starTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
Trip.comPrice Accuracy2 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Denver flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Denver flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Denver flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Denver flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Denver flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from Seattle with our price prediction graph.
Estimated round-trip 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 Seattle to Denver

Get recent, data-driven insights about flights from Seattle to Denver including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Seattle to Denver?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Denver. Price data was last updated on November 8, 2024.

To ensure you get the cheapest price possible for a flight from Seattle to Denver, you should look to book at least 69 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 Seattle to Denver?

Currently, October is the cheapest month in which you can book a flight from Seattle to Denver (average of $197). Flying from Seattle to Denver in March is currently the most expensive (average of $270). 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 SEA to DEN?

Find hourly flight availability from Seattle to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 14, 2024.

A simple way to save on the total cost of your ticket is to fly from Seattle to Denver in the evening. If you’re flexible enough to do this you can expect to save up to 34% on your trip compared to booking a flight at noon.

What is the cheapest day to fly from Seattle to Denver?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Denver. Price data was last updated on November 10, 2024.

Travelers seeking maximum savings on their Seattle to Denver flight should consider departing on Tuesday evenings when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Seattle to Denver

Explore weekly flight availability from Seattle to Denver. 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 November 14, 2024.

The most flights from SEA to DEN are scheduled on a Thursday (39 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (13 on average).

Rainfall in Denver by month

Plan your trip to Denver by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Denver ranges from 0.5 - 2.3 inches per month. May is typically the wettest month, when rainfall can reach 2.3 in. January is typically the driest time to visit Denver when rainfall is around 0.5 in.

Temperature in Denver by month

Plan your trip to Denver by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Denver, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Denver

Get insights into the airlines that provide service to Denver. 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 Denver. Reviews last updated November 14, 2024.
Read through reviews of airlines operating flights from Seattle to Denver, such as United Airlines, Alaska Airlines and American Airlines. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
5,045 reviews

Food

7.2

Crew

8.7

Overall

8.1

Boarding

8.3

Entertainment

7.7

Comfort

8.1

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Southwest
8.1
Very good
5,045 reviews
Southwest
8.1
Very good
5,045 reviews

Food

7.2

Crew

8.7

Overall

8.1

Boarding

8.3

Entertainment

7.7

Comfort

8.1

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Alaska Airlines
8.0
Very good
9,439 reviews
Southwest
8.1
Very good
5,045 reviews

Food

7.2

Crew

8.7

Overall

8.1

Boarding

8.3

Entertainment

7.7

Comfort

8.1

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Delta
8.0
Very good
8,788 reviews
Southwest
8.1
Very good
5,045 reviews

Food

7.2

Crew

8.7

Overall

8.1

Boarding

8.3

Entertainment

7.7

Comfort

8.1

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

United Airlines
7.4
Good
9,194 reviews
Southwest
8.1
Very good
5,045 reviews

Food

7.2

Crew

8.7

Overall

8.1

Boarding

8.3

Entertainment

7.7

Comfort

8.1

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
5,045 reviews

Food

7.2

Crew

8.7

Overall

8.1

Boarding

8.3

Entertainment

7.7

Comfort

8.1

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Related info for your journey

Find useful and relevant information for your journey from Seattle to Denver. 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 Seattle to Denver?

    If you wish to fly to Denver from Seattle, then you need to book flights from Seattle/Tacoma Intl to Denver Intl. There are 22 flights from Seattle/Tacoma Intl (SEA) to Denver Intl (DEN) per day to choose from. Flights to Denver from Seattle/Tacoma Intl are available from 5 different airlines, which means you should have some options if you want to compare airfare deals. 2h 40m is how long a nonstop flight from Seattle to Denver Intl typically takes.

  • How popular is this Seattle to Denver flight route?

    Within the past month, 353 users have taken a look at flights from Seattle/Tacoma Intl to Denver Intl.

  • What are the cheapest airlines flying from Seattle to Denver round-trip?

    Currently priced at $82, Frontier will fly you from Seattle to Denver and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Delta - these airlines can fly you to your destination from $157 and $177, respectively. These flights start at 52% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Seattle to Denver one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $28. Users have also found prices from $79 and $84 on Delta and United Airlines, respectively.

  • What are the most reliable airlines from Seattle to Denver?

    No one likes to see their flight delayed. When booking a flight from Seattle to Denver consider choosing Sun Country Air (100%), ANA (94%) or Aeromexico (94%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Seattle to Denver?

    Looking at all options, your cheapest flight can be booked for $55. While the most popular route (Seattle/Tacoma Intl - Denver Intl) can be booked for $93 on average our data indicates $570 when flying from Seattle to Denver.

  • Can I find deals for flights from Seattle to Denver that include hotel bookings?

    Yes. In addition to deals on Seattle to Denver flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Denver?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Denver.

  • Can I find deals for business class flights from Seattle to Denver?

    Yes. Cheapflights offers flight deals from Seattle to Denver 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 Seattle to Denver?

    Currently, October is the cheapest month in which you can book a flight from Seattle to Denver (average of $197). Flying from Seattle to Denver in March is currently the most expensive (average of $270). 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.

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Top 5 airlines flying from Seattle to Denver

Discover the top 5 airlines that operate flights from Seattle to Denver. 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 2,752,363 searches. Data last updated November 14, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$54Average$128FlexibilityNo cancel feeOn-time62%
DeltaCheapest$87Average$231FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$111Average$268FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$124Average$305FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$132Average$218FlexibilityNo cancel feeOn-time63%
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