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Cheap flights from Denver to Seattle from £39

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 18/7. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
DEN — SEA
13 May — 20 May1
1 adult
Mon 13/5
Mon 20/5

The best prices from Denver Intl to Seattle/Tacoma Intl are usually found in January or April, booked 55 days in advance, depart on a Monday or Tuesday 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 8 May 2024.

Popular in

July

Cheapest in

January

Round-trip from

£475

One-way from

£39
High demand for flights, 29% potential price rise
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Best time to find cheap flights, 30% potential price drop
Search Deals
From Denver Intl to Seattle/Tacoma Intl
Search Deals
One-way flight from Denver Intl to Seattle/Tacoma Intl
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What is the cheapest day to fly round-trip from Denver to Seattle?

Leaving on a Sunday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 136% on the overall cost on flights from Denver to Seattle.

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

Find a great deal and save up to 87% by booking at least 56 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Denver to Seattle within the next two weeks, with the cheapest ticket starting at £135.

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

Due to multiple factors, expect to potentially pay more when booking in July. For low rates, January can be a great choice for travel to Seattle. Flights to Seattle from Denver in January are about £146 on average during January, but can be found for as low as £36.

When is the cheapest time to fly from Denver to Seattle (DEN - SEA)?

It’s typically best to fly out from Denver to Seattle in the morning. Doing so could potentially save you 27% on the flight price compared to flying in the afternoon, which is usually more expensive.

Cheap Alaska Airlines flights from Denver to Seattle

Explore cheap flight options specifically provided by Alaska Airlines for the route between Denver and Seattle. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 881,145 searches. Data last updated 8 May 2024.
Take a peek at the cheapest Alaska Airlines flights we've detected travelling from Denver to Seattle. Come back soon if you're not finding the exact deal you're looking for.
Tue 4/617:37DEN - SEA
1 stop5h 17mAlaska Airlines
Wed 12/620:15SEA - DEN
Nonstop2h 43mAlaska Airlines
Deal found 7/5£142
Thu 20/606:00DEN - SEA
Nonstop2h 58mAlaska Airlines
Tue 25/620:18SEA - DEN
Nonstop2h 40mAlaska Airlines
Deal found 7/5£146
Thu 6/606:00DEN - SEA
Nonstop2h 57mAlaska Airlines
Sun 16/606:00SEA - DEN
Nonstop2h 44mAlaska Airlines
Deal found 7/5£150
Fri 16/821:45DEN - SEA
Nonstop2h 59mAlaska Airlines
Tue 20/811:20SEA - DEN
1 stop4h 34mAlaska Airlines
Deal found 8/5£157
Mon 10/606:00DEN - SEA
Nonstop2h 57mAlaska Airlines
Sat 15/611:20SEA - DEN
1 stop6h 59mAlaska Airlines
Deal found 8/5£161
Tue 20/812:02DEN - SEA
1 stop4h 57mAlaska Airlines
Wed 21/811:20SEA - DEN
1 stop4h 34mAlaska Airlines
Deal found 6/5£165
Sat 8/606:00DEN - SEA
Nonstop2h 57mAlaska Airlines
Sat 8/611:29SEA - DEN
1 stop6h 47mAlaska Airlines
Deal found 7/5£173
Sat 25/520:08DEN - SEA
1 stop10h 48mAlaska Airlines
Sun 26/508:11SEA - DEN
Nonstop2h 47mAlaska Airlines
Deal found 7/5£198
Thu 23/506:00DEN - SEA
Nonstop2h 57mAlaska Airlines
Mon 27/506:09SEA - DEN
Nonstop2h 47mAlaska Airlines
Deal found 7/5£214

Cheap Delta flights from Denver to Seattle

Explore cheap flight options specifically provided by Delta for the route between Denver and Seattle. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 881,145 searches. Data last updated 8 May 2024.
Have a look at some of the cheapest available Delta flights departing from Denver and landing in Seattle. Deals are refreshing constantly so come back soon for more options.
Fri 21/619:55DEN - SEA
Nonstop3h 06mDelta
Tue 25/607:30SEA - DEN
Nonstop2h 50mDelta
Deal found 7/5£154
Thu 1/806:05DEN - SEA
Nonstop3h 00mDelta
Mon 5/819:45SEA - DEN
Nonstop2h 39mDelta
Deal found 7/5£158
Sat 22/619:55DEN - SEA
Nonstop3h 06mDelta
Sun 23/607:30SEA - DEN
Nonstop2h 50mDelta
Deal found 7/5£166
Fri 21/619:55DEN - SEA
Nonstop3h 06mDelta
Thu 27/619:55SEA - DEN
Nonstop2h 44mDelta
Deal found 7/5£170
Sun 23/606:05DEN - SEA
Nonstop3h 00mDelta
Fri 28/619:55SEA - DEN
Nonstop2h 44mDelta
Deal found 7/5£182
Tue 18/606:05DEN - SEA
Nonstop3h 00mDelta
Fri 21/619:55SEA - DEN
Nonstop2h 44mDelta
Deal found 6/5£190
Fri 21/619:55DEN - SEA
Nonstop3h 06mDelta
Sun 30/607:30SEA - DEN
Nonstop2h 50mDelta
Deal found 7/5£194
Fri 7/606:05DEN - SEA
Nonstop3h 00mDelta
Mon 10/619:55SEA - DEN
Nonstop2h 44mDelta
Deal found 7/5£203
Wed 21/806:00DEN - SEA
1 stop9h 40mDelta
Sun 25/813:45SEA - DEN
Nonstop2h 45mDelta
Deal found 8/5£204

Cheap Denver to Seattle flights in May & June 2024

Find cheap flight options from Denver to Seattle specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 881,145 searches. Prices were last updated on 8 May 2024.
These are some of the most attractive deals on flights from Denver to Seattle in 2024. Check back in a little while for more flight options.
Wed 12/606:00DEN - SEA
Nonstop2h 57mAlaska Airlines
Tue 25/620:18SEA - DEN
Nonstop2h 40mAlaska Airlines
Deal found 8/5£130
Wed 12/606:00DEN - SEA
Nonstop2h 57mAlaska Airlines
Sun 23/606:00SEA - DEN
Nonstop2h 44mAlaska Airlines
Deal found 8/5£138
Tue 4/617:37DEN - SEA
1 stop5h 17mAlaska Airlines
Sat 8/620:15SEA - DEN
Nonstop2h 43mAlaska Airlines
Deal found 8/5£142
Thu 13/619:55DEN - SEA
Nonstop3h 06mDelta
Tue 25/619:55SEA - DEN
Nonstop2h 44mDelta
Deal found 8/5£146
Thu 6/606:00DEN - SEA
Nonstop2h 57mAlaska Airlines
Sun 16/606:00SEA - DEN
Nonstop2h 44mAlaska Airlines
Deal found 7/5£150
Tue 4/617:37DEN - SEA
1 stop5h 17mAlaska Airlines
Wed 5/606:09SEA - DEN
Nonstop2h 47mAlaska Airlines
Deal found 8/5£153
Thu 20/619:55DEN - SEA
Nonstop3h 06mDelta
Tue 25/619:55SEA - DEN
Nonstop2h 44mDelta
Deal found 8/5£154
Tue 4/617:37DEN - SEA
1 stop5h 17mAlaska Airlines
Sun 16/606:00SEA - DEN
Nonstop2h 44mAlaska Airlines
Deal found 7/5£157
Thu 13/606:00DEN - SEA
Nonstop2h 58mAlaska Airlines
Sat 22/620:18SEA - DEN
Nonstop2h 40mAlaska Airlines
Deal found 8/5£158

Denver to Seattle 2024 flight deals

Discover exclusive flight deals for travel between Denver and Seattle in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 881,145 searches. Data last updated 8 May 2024.
These are some of the most attractive deals on flights from Denver to Seattle in 2024. Check back in a little while for more flight options.
Wed 12/606:00DEN - SEA
Nonstop2h 57mAlaska Airlines
Tue 25/620:18SEA - DEN
Nonstop2h 40mAlaska Airlines
Deal found 8/5£130
Wed 12/606:00DEN - SEA
Nonstop2h 57mAlaska Airlines
Sun 23/606:00SEA - DEN
Nonstop2h 44mAlaska Airlines
Deal found 8/5£138
Tue 4/617:37DEN - SEA
1 stop5h 17mAlaska Airlines
Tue 11/606:09SEA - DEN
Nonstop2h 47mAlaska Airlines
Deal found 7/5£142
Thu 13/619:55DEN - SEA
Nonstop3h 06mDelta
Tue 25/619:55SEA - DEN
Nonstop2h 44mDelta
Deal found 8/5£146
Thu 6/606:00DEN - SEA
Nonstop2h 57mAlaska Airlines
Sun 16/606:00SEA - DEN
Nonstop2h 44mAlaska Airlines
Deal found 7/5£150
Tue 4/617:37DEN - SEA
1 stop5h 17mAlaska Airlines
Wed 5/606:09SEA - DEN
Nonstop2h 47mAlaska Airlines
Deal found 8/5£153
Fri 9/821:45DEN - SEA
Nonstop2h 59mAlaska Airlines
Mon 12/820:18SEA - DEN
Nonstop2h 40mAlaska Airlines
Deal found 7/5£154
Tue 4/617:37DEN - SEA
1 stop5h 17mAlaska Airlines
Sun 16/606:00SEA - DEN
Nonstop2h 44mAlaska Airlines
Deal found 7/5£157
Thu 13/621:45DEN - SEA
Nonstop2h 59mAlaska Airlines
Sun 23/606:00SEA - DEN
Nonstop2h 44mAlaska Airlines
Deal found 8/5£158

Direct flights to Seattle from Denver

Discover direct flight options from Denver to Seattle. Find direct flights with no stopovers, providing a convenient travel experience. Explore direct flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 881,145 searches. Data last updated 8 May 2024.
For a shorter flight, select one of these non-stop flights from Denver to Seattle. Search for alternative flights from Denver to Seattle by utilising the search form above.
Wed 12/606:00DEN - SEA
Nonstop2h 57mAlaska Airlines
Tue 25/620:18SEA - DEN
Nonstop2h 40mAlaska Airlines
Deal found 8/5£130
Wed 12/606:00DEN - SEA
Nonstop2h 57mAlaska Airlines
Sun 23/606:00SEA - DEN
Nonstop2h 44mAlaska Airlines
Deal found 8/5£138
Sat 15/621:59DEN - SEA
Nonstop2h 59mAlaska Airlines
Tue 25/620:18SEA - DEN
Nonstop2h 40mAlaska Airlines
Deal found 8/5£142
Thu 13/619:55DEN - SEA
Nonstop3h 06mDelta
Tue 25/619:55SEA - DEN
Nonstop2h 44mDelta
Deal found 8/5£146
Fri 16/806:05DEN - SEA
Nonstop3h 02mDelta
Sun 18/807:35SEA - DEN
Nonstop2h 47mDelta
Deal found 8/5£150
Fri 21/619:55DEN - SEA
Nonstop3h 06mDelta
Tue 25/607:30SEA - DEN
Nonstop2h 50mDelta
Deal found 7/5£154
Sun 25/806:05DEN - SEA
Nonstop3h 02mDelta
Sun 25/813:45SEA - DEN
Nonstop2h 45mDelta
Deal found 8/5£157
Thu 13/606:00DEN - SEA
Nonstop2h 58mAlaska Airlines
Sat 22/620:18SEA - DEN
Nonstop2h 40mAlaska Airlines
Deal found 8/5£158
Fri 14/619:55DEN - SEA
Nonstop3h 06mDelta
Mon 24/619:55SEA - DEN
Nonstop2h 44mDelta
Deal found 8/5£162

Denver to Seattle flights leaving soon

Find last-minute flight options from Denver to Seattle for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 881,145 searches. Data last updated 8 May 2024.
Book one of these great deals on flights from Denver to Seattle. Users should examine the flight details to ensure there are no surprises.
Wed 15/506:45DEN - SEA
Nonstop2h 57mAlaska Airlines
Thu 16/507:35SEA - DEN
1 stop8h 02mAlaska Airlines
Deal found 8/5£221
Fri 17/518:10DEN - SEA
1 stop5h 11mDelta
Wed 22/519:35SEA - DEN
Nonstop2h 48mDelta
Deal found 8/5£234
Fri 17/510:53DEN - SEA
Nonstop2h 57mAlaska Airlines
Sat 18/511:26SEA - DEN
1 stop6h 45mAlaska Airlines
Deal found 7/5£237
Tue 14/515:01DEN - SEA
1 stop4h 25mDelta
Tue 21/519:35SEA - DEN
Nonstop2h 48mDelta
Deal found 8/5£241
Wed 15/517:32DEN - SEA
1 stop5h 12mAlaska Airlines
Thu 16/509:35SEA - DEN
1 stop6h 02mAlaska Airlines
Deal found 7/5£245
Thu 16/518:10DEN - SEA
1 stop6h 49mDelta
Sun 19/507:40SEA - DEN
Nonstop2h 54mDelta
Deal found 8/5£249
Fri 17/517:35DEN - SEA
1 stop8h 23mUnited Airlines
Wed 22/513:10SEA - DEN
1 stop8h 37mUnited Airlines
Deal found 8/5£257
Tue 14/515:01DEN - SEA
1 stop4h 25mDelta
Fri 17/517:09SEA - DEN
1 stop5h 05mDelta
Deal found 8/5£269
Wed 15/512:52DEN - SEA
1 stop6h 34mDelta
Tue 21/513:30SEA - DEN
1 stop4h 46mDelta
Deal found 8/5£273

One-way flights to Seattle from Denver

Search for one-way flight options from Denver to Seattle. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 881,145 searches. Data last updated 8 May 2024.
Users travelling one-way from Denver to Seattle can select one of these great deals. Users can also find round-trip Denver to Seattle flights by using the search form above.
Thu 18/709:45DEN - SEA
Nonstop3h 00mSun Country Air
Deal found 7/5£39
Sun 19/505:01DEN - SEA
Nonstop3h 03mFrontier
Deal found 7/5£47
Tue 11/618:56DEN - SEA
Nonstop2h 54mAlaska Airlines
Deal found 7/5£60
Wed 12/612:15DEN - SEA
Nonstop3h 05mDelta
Deal found 7/5£64
Wed 12/619:55DEN - SEA
Nonstop3h 06mDelta
Deal found 8/5£71
Thu 1/821:45DEN - SEA
Nonstop2h 59mAlaska Airlines
Deal found 7/5£75
Fri 14/621:45DEN - SEA
Nonstop2h 59mAlaska Airlines
Deal found 8/5£79
Thu 30/517:37DEN - SEA
1 stop5h 17mAlaska Airlines
Deal found 6/5£82
Fri 14/606:05DEN - SEA
Nonstop3h 00mDelta
Deal found 8/5£87

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 881,145 searches. Data last updated 8 May 2024.

Fly from

Any airport

Fly to

Any airport

Budget

£142 - £205

Route

Depart

Return

Price

Denver IntlSeattle/Tacoma Intl

DEN - SEA

DENSEA

Denver Intl

Tue 4/6

1 stop5h 17m

Seattle/Tacoma Intl

Wed 12/6

Nonstop2h 43m

£142

Denver IntlSeattle/Tacoma Intl

DEN - SEA

DENSEA

Denver Intl

Thu 20/6

Nonstop2h 58m

Seattle/Tacoma Intl

Tue 25/6

Nonstop2h 40m

£146

Denver IntlSeattle/Tacoma Intl

DEN - SEA

DENSEA

Denver Intl

Thu 6/6

Nonstop2h 57m

Seattle/Tacoma Intl

Sun 16/6

Nonstop2h 44m

£150

Denver IntlSeattle/Tacoma Intl

DEN - SEA

DENSEA

Denver Intl

Fri 21/6

Nonstop3h 06m

Seattle/Tacoma Intl

Tue 25/6

Nonstop2h 50m

£154

Denver IntlSeattle/Tacoma Intl

DEN - SEA

DENSEA

Denver Intl

Fri 16/8

Nonstop2h 59m

Seattle/Tacoma Intl

Tue 20/8

1 stop4h 34m

£157

Denver IntlSeattle/Tacoma Intl

DEN - SEA

DENSEA

Denver Intl

Thu 1/8

Nonstop3h 00m

Seattle/Tacoma Intl

Mon 5/8

Nonstop2h 39m

£158

Denver IntlSeattle/Tacoma Intl

DEN - SEA

DENSEA

Denver Intl

Sat 22/6

Nonstop3h 06m

Seattle/Tacoma Intl

Sun 23/6

Nonstop2h 50m

£166

Denver IntlSeattle/Tacoma Intl

DEN - SEA

DENSEA

Denver Intl

Wed 30/10

1 stop6h 10m

Seattle/Tacoma Intl

Sun 3/11

Nonstop2h 45m

£202

Denver IntlSeattle/Tacoma Intl

DEN - SEA

DENSEA

Denver Intl

Sun 27/10

Nonstop3h 00m

Seattle/Tacoma Intl

Wed 6/11

1 stop7h 20m

£205

Flights are sorted by cheapest first

Deals found on 7/5

When is the best time to 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 3 May 2024.
To ensure you get the cheapest price possible for a flight from Denver to Seattle, you should look to book at least 55 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.
Search Deals

When is the cheapest time to fly from Denver to Seattle?

Use this chart to determine the cheapest time to fly return from Denver to Seattle. Price data was last updated on 5 May 2024.
Morning
Midday
Afternoon
Evening
All times are departure.
Travellers seeking maximum savings on their Denver to Seattle flight should consider departing on Friday mornings when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to Seattle by month

Plan your trip from Denver to Seattle by taking into account the cheapest months to travel. The average price of a one-way flight from Denver to Seattle is currently £67 while a return flight costs £164. Price data was last updated on 5 May 2024.

Currently, February is the cheapest month in which you can book a flight from Denver to Seattle (average of £594). Flying from Denver to Seattle in July is currently the most expensive (average of £800). 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.

January

£489

February

£476

March

£506

April

£521

May

£546

June

£613

July

£640

August

£612

September

£549

October

£525

November

£480

December

£476

Temperature and rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average temperature and rainfall totals by month.

SEA

Temperature

5 - 19 °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 8 May 2024.
Read reviews from past customers who have flown Alaska Airlines, Delta and United Airlines from Denver to Seattle. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very Good
9,141 reviews
Check prices

Crew

8.6

Overall

8.1

Comfort

7.9

Entertainment

7.3

Boarding

8.2

Food

7.3

Reviews

1 / 10

There were no major issues. A bit of delay but it was understandable. It was a good experience otherwise.

Alaska Airlines
8.1
Very Good
9,141 reviews
Alaska Airlines
8.1
Very Good
9,141 reviews
Check prices

Crew

8.6

Overall

8.1

Comfort

7.9

Entertainment

7.3

Boarding

8.2

Food

7.3

Reviews

1 / 10

There were no major issues. A bit of delay but it was understandable. It was a good experience otherwise.

Delta
8.1
Very Good
10,789 reviews
Alaska Airlines
8.1
Very Good
9,141 reviews
Check prices

Crew

8.6

Overall

8.1

Comfort

7.9

Entertainment

7.3

Boarding

8.2

Food

7.3

Reviews

1 / 10

There were no major issues. A bit of delay but it was understandable. It was a good experience otherwise.

United Airlines
7.4
Good
11,043 reviews
Alaska Airlines
8.1
Very Good
9,141 reviews
Check prices

Crew

8.6

Overall

8.1

Comfort

7.9

Entertainment

7.3

Boarding

8.2

Food

7.3

Reviews

1 / 10

There were no major issues. A bit of delay but it was understandable. It was a good experience otherwise.

Sun Country Air
7.2
Good
640 reviews
Alaska Airlines
8.1
Very Good
9,141 reviews
Check prices

Crew

8.6

Overall

8.1

Comfort

7.9

Entertainment

7.3

Boarding

8.2

Food

7.3

Reviews

1 / 10

There were no major issues. A bit of delay but it was understandable. It was a good experience otherwise.

Frontier
6.3
Okay
4,088 reviews
Alaska Airlines
8.1
Very Good
9,141 reviews
Check prices

Crew

8.6

Overall

8.1

Comfort

7.9

Entertainment

7.3

Boarding

8.2

Food

7.3

Reviews

1 / 10

There were no major issues. A bit of delay but it was understandable. It was a good experience otherwise.

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.

  • Can I find flights from Denver to Seattle for under £200 on Cheapflights?

    Yes, there are multiple flights from Denver to Seattle for under £200. The cheapest flight booked recently is on Alaska Airlines for just £142, but on average you can expect to pay £175.

  • Are there nonstop flights from Denver to Seattle for under £200 on Cheapflights?

    Cheapflights has at least 20 direct flights from Denver to Seattle under £200. A good price for a nonstop flight from Denver to Seattle is less than £171.

  • Are there last-minute flights available from Denver to Seattle for under £300?

    There are currently 20+ open flights from Denver to Seattle within the next 7 days for less than £300.

  • What days are direct flights available from Denver to Seattle?

    Days when direct flights are available for this flight are: Sunday, Monday, Wednesday, Thursday, Friday, Saturday.

  • How popular is this Denver to Seattle flight route?

    The Denver Intl to Seattle/Tacoma Intl flight path was viewed by 6 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How many flights depart from Denver to Seattle on average per day?

    Travellers can expect 22 flights from Denver to Seattle on average per day.
    Early Morning (Midnight to 6am) - 5% of flight departures
    Morning (6am - Midday) - 9% of flight departures
    Afternoon (Midday - 6pm) - 45% of flight departures
    Evening (6pm - Midnight) - 41% of flight departures

  • How long is the flight from Denver to Seattle?

    Departing from Denver to Seattle will take you 3h 06m. Denver and Seattle are separated by a distance of 1028 mi. Both multi-stop and direct flights can be found to your destination and back.

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

    Flying on Alaska Airlines is currently your cheapest option to Seattle, with prices starting at £142. Additional return tickets that might be worth considering are offered by Delta and United Airlines, with the lowest prices starting at £154 and £202, respectively. Alaska Airlines is priced at 2% 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 Sun Country Air, with whom users have recently found tickets for as low as £39. However, be on the lookout for offers from Frontier 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: SkyWest Airlines (100%), Sun Country Air (100%), China Eastern (100%).

  • What are the cheapest flights from Denver to Seattle?

    The cheapest flight price from Denver to Seattle is £88. On average you can expect to pay £215. The most popular route, (Denver Intl - Seattle/Tacoma Intl), can usually be booked for £154.

  • What does DEN to SEA mean?

    This is defined as Denver Intl Airport (DEN) and Seattle/Tacoma Intl Airport (SEA). Codes like Seattle/Tacoma Intl Airport are often used to just call airports uniquely.

  • Can I find deals for flights from Denver to Seattle that include extra baggage allowance?

    The amount of baggage you can bring on your Denver to Seattle flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Denver to Seattle with specific airlines?

    Yes, Cheapflights allows you to browse and filter Denver to Seattle flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • 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.

  • Can I find deals for flights from Denver to Seattle that allow pets onboard?

    Many airlines flying from Denver to Seattle offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Denver to Seattle?

    Yes, you can often find last-minute deals on Denver to Seattle flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Denver to Seattle flight deals updated?

    The Denver to Seattle flight deals you see on this page were last updated on 8/5.

See more FAQs

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Denver to San Francisco flights

Search flights from Denver to Seattle by cabin class

Find flights from Denver to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Hourly flight availability from Denver to Seattle

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 8 May 2024.
38%of flight departuresEarly morningMidnight to 6 am
39%of flight departuresMorning6 am to noon
11%of flight departuresAfternoonNoon to 6 pm
12%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Midday
6 PM

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 8 May 2024.
Monday37daily flights
Tuesday28daily flights
Wednesday28daily flights
Thursday25daily flights
Friday36daily flights
Saturday26daily flights
Sunday27daily flights

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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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