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Cheap flights from Denver to Seattle from £62

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 15/1. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SEA
20 Nov — 27 Nov1
1 adult

The best prices from Denver Intl to Seattle/Tacoma Intl are usually found in April or February, booked 27 days in advance, depart on a Tuesday or Monday and return on a Monday

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 943,810 searches. Data last updated 15 November 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Sat 14/12

12:10-14:22

Nonstop3h 12m

Seattle/Tacoma Intl

Tue 17/12

19:55-23:44

Nonstop2h 49m

£124

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Tue 10/12

07:45-15:21

1 stop8h 36m

Seattle/Tacoma Intl

Tue 17/12

15:25-19:09

Nonstop2h 44m

£128

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Tue 28/1

07:00-09:19

Nonstop3h 19m

Seattle/Tacoma Intl

Tue 28/1

18:59-22:36

Nonstop2h 37m

£132

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Sun 29/12

11:00-13:10

Nonstop3h 10m

Seattle/Tacoma Intl

Sun 5/1

21:36-01:21

Nonstop2h 45m

£153

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Sat 18/1

19:25-21:25

Nonstop3h 00m

Seattle/Tacoma Intl

Sat 25/1

08:15-16:25

2 stops7h 10m

£172

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Wed 15/1

06:25-08:39

Nonstop3h 14m

£62

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Tue 17/12

07:45-15:21

1 stop8h 36m

£66

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Tue 17/12

12:45-18:01

1 stop6h 16m

£69

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Mon 6/1

20:55-22:55

Nonstop3h 00m

£74

Flights are sorted by cheapest first

Deals found on 14/11

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 15 November 2024.

Round-trip from

£124

One-way from

£62

Popular in

July

Cheapest in

April
Delta
  • Delta
  • 14/12-17/12
  • Nonstop
  • 6h 01m total
  • Denver to Seattle
Search Deals
Delta
  • Delta
  • 14/12
  • Nonstop
  • 3h 25m total
  • Denver to Seattle
Search Deals
High demand for flights, 19% potential price rise
Search Deals
Best time to find cheap flights, 20% potential price drop
Search Deals

Find flight deals from Denver to Seattle

Cheapest flights from Denver to Seattle
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 15 November 2024.

Sat 14/1212:10DEN - SEA
Nonstop3h 12mDelta
Tue 17/1219:55SEA - DEN
Nonstop2h 49mDelta
Deal found 14/11£124
Tue 10/1207:45DEN - SEA
1 stop8h 36mUnited Airlines
Tue 17/1215:25SEA - DEN
Nonstop2h 44mUnited Airlines
Deal found 13/11£128
Tue 24/1206:00DEN - SEA
Nonstop3h 14mAlaska Airlines
Sat 28/1219:45SEA - DEN
Nonstop2h 44mAlaska Airlines
Deal found 14/11£136
Sun 29/1211:00DEN - SEA
Nonstop3h 10mFrontier
Sun 5/121:36SEA - DEN
Nonstop2h 45mFrontier
Deal found 14/11£153
Wed 27/1122:50DEN - SEA
Nonstop3h 00mSouthwest
Tue 3/1208:25SEA - DEN
Nonstop2h 40mSouthwest
Deal found 13/11£188

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 8 November 2024.

To ensure you get the cheapest price possible for a flight from Denver to Seattle, you should look to book at least 27 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 £616). Flying from Denver to Seattle in July is currently the most expensive (average of £841). 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 15 November 2024.

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 15 November 2024.

The most flights from DEN to SEA are scheduled on a Thursday (37 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (8 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 15 November 2024.
Read reviews from past customers who have flown Delta, United Airlines and Alaska Airlines from Denver to Seattle. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very Good
5,044 reviews
Check prices

Comfort

8.1

Boarding

8.3

Overall

8.1

Crew

8.7

Entertainment

7.7

Food

7.2

Reviews

1 / 10

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

Southwest
8.1
Very Good
5,044 reviews
Southwest
8.1
Very Good
5,044 reviews
Check prices

Comfort

8.1

Boarding

8.3

Overall

8.1

Crew

8.7

Entertainment

7.7

Food

7.2

Reviews

1 / 10

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

Alaska Airlines
8.0
Very Good
9,446 reviews
Southwest
8.1
Very Good
5,044 reviews
Check prices

Comfort

8.1

Boarding

8.3

Overall

8.1

Crew

8.7

Entertainment

7.7

Food

7.2

Reviews

1 / 10

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

Delta
8.0
Very Good
8,786 reviews
Southwest
8.1
Very Good
5,044 reviews
Check prices

Comfort

8.1

Boarding

8.3

Overall

8.1

Crew

8.7

Entertainment

7.7

Food

7.2

Reviews

1 / 10

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

United Airlines
7.4
Good
9,193 reviews
Southwest
8.1
Very Good
5,044 reviews
Check prices

Comfort

8.1

Boarding

8.3

Overall

8.1

Crew

8.7

Entertainment

7.7

Food

7.2

Reviews

1 / 10

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

Frontier
6.1
Okay
3,549 reviews
Southwest
8.1
Very Good
5,044 reviews
Check prices

Comfort

8.1

Boarding

8.3

Overall

8.1

Crew

8.7

Entertainment

7.7

Food

7.2

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 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 24 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 09m.

  • 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 £124. Additional return tickets that might be worth considering are offered by United Airlines and Alaska Airlines, with the lowest prices starting at £128 and £132, respectively. Delta is priced at 7% 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 Delta, with whom users have recently found tickets for as low as £62. However, be on the lookout for offers from United Airlines 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: SWISS (100%), Singapore Airlines (94%), Korean Air (92%).

  • What are the cheapest flights from Denver to Seattle?

    The cheapest flight price from Denver to Seattle is £108. On average you can expect to pay £132. The most popular route, (Denver Intl - Seattle/Tacoma Intl), can usually be booked for £180.

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

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

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

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

  • 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 £616). Flying from Denver to Seattle in July is currently the most expensive (average of £841). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Denver to Seattle

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 943,810 searches. Data last updated 15 November 2024.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest£132Average£137FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights

Fly with Cheapflights

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.

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