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FlightsFrom Denver

To Seattle

Cheap Flights from Denver to Seattle

Browse current best options from Denver. Become a member to unlock all deals and get alerts when new deals appear.

Deals from

Denver

RatePunk searches hundreds of travel sites at once for deals on flights to Seattle

Prices updated 24 days ago

486,190 searches this week

171 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated May 29, 2026.)

Todayโ€™s best flight deals from Denver to Seattle

Explore current cheapest deals departing from Denver to Seattle

October 20 - October 21

Cheapest
Best

DEN - Seattle

$175

$89

Round trip

October 20 - October 27

Cheapest
Best

DEN - Seattle

$171

$89

Round trip

October 21 - October 27

Cheapest
Best

DEN - Seattle

$171

$89

Round trip

October 20 - October 22

DEN - Seattle

$176

$102

Round trip

October 1 - October 27

DEN - Seattle

$136

$102

Round trip

October 4 - October 27

DEN - Seattle

$141

$102

Round trip

September 24 - October 21

Earliest

DEN - Seattle

$134

$102

Round trip

October 1 - October 21

DEN - Seattle

$136

$102

Round trip

October 4 - October 21

DEN - Seattle

$143

$102

Round trip

October 8 - October 21

DEN - Seattle

$150

$102

Round trip

Unlock all 500+ flight deals to Seattle and get alerts when great deals appear

Route Intelligence โ€” 486,190 Searches this Week

Insights for flights from Denver to Seattle

Most itineraries for flights from Denver to Seattle are non-stop, accounting for 70.4% of recent fares. For the remaining itineraries that include connections, travelers typically encounter one stopover.
When considering cheap flights from Denver to Seattle, a typical journey takes approximately 5h 58m, including any connections. This duration reflects the overall travel time you can expect for this route.
The route from Denver to Seattle covers a distance of 1645 kilometers, classifying it as a medium-haul flight. This distance means you are looking at a journey that is longer than a short hop but not a full transcontinental or international trip.
If you are wondering when is the cheapest time to fly from Denver to Seattle, the data indicates that April is often the most affordable month, with a median fare of just $93. Other budget-friendly options include November, with median fares around $112, and December, where the median fare is $115. Planning your trip during these months could lead to significant savings.
Fares for flights from Denver to Seattle typically range from $108โ€“$431, with a median price of $236. Right now, current fares are above the typical level. Despite this, 18% of recent fares were still classified as a good price, indicating that deals are available if you look for them. New deals appear almost daily for this route, so setting up a price alert can be beneficial.

How much is a round trip from Denver to Seattle

Regular price: $133 - $240

Prices are currently below the regular range for flights from Denver to Seattle.

The regular price range for flights from Denver to Seattle is between $133 and $240. The current lowest deal is $89 with Frontier Airlines, for travel from Oct 20-Oct 21.

now $89

Low $133

High $240

The cheapest time to fly from Denver to Seattle

The cheapest month to fly from Denver to Seattle is April, with a median price of $93. The most expensive month is June, with a median price of $391. Generally, prices are lower from April to December.

April

Cheapest

Flights from $93

June

Most Expensive

Flights from $391

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Direct flights from Denver to Seattle

Airline logo

Frontier Airlines

Last-minute flights going from Denver to Seattle

Sun, Jun 21

โŒ› Last-Minute

DEN - Seattle

Frontier Airlines

Denver (DEN) - Seattle (SEA)

Frontier Airlines

$455

$360

One-way

Mon, Jun 22

โŒ› Last-Minute

DEN - Seattle

Frontier Airlines

Denver (DEN) - Seattle (SEA)

Frontier Airlines

$398

$309

One-way

Wed, Jun 24

โŒ› Last-Minute

DEN - Seattle

Frontier Airlines

Denver (DEN) - Seattle (SEA)

Frontier Airlines

$397

$286

One-way

Wed, Jun 24

โŒ› Last-Minute

DEN - Seattle

Frontier Airlines

Denver (DEN) - Seattle (SEA)

Frontier Airlines

$398

$315

One-way

Thu, Jun 25

โŒ› Last-Minute

DEN - Seattle

Frontier Airlines

Denver (DEN) - Seattle (SEA)

Frontier Airlines

$372

$260

One-way

Sat, Jun 27

โŒ› Last-Minute

DEN - Seattle

Frontier Airlines

Denver (DEN) - Seattle (SEA)

Frontier Airlines

$395

$295

One-way

Biggest price drops on these dates for flights from Denver to Seattle

3 nights

Oct 22 - Oct 25

$390ย ย โ†’ย ย $239

39%

8 nights

Oct 20 - Oct 28

$263ย ย โ†’ย ย $148

44%

5 nights

Jun 25 - Jun 30

$372ย ย โ†’ย ย $260

30%

1 night

Jun 24 - Jun 25

$397ย ย โ†’ย ย $286

28%

Popular Airports to fly from Denver to Seattle

Denver - Seattle route insights

๐Ÿ’ธ Price insights

Recent fares are above the typical level

Recent fares from Denver to Seattle are above the typical level, with a median price of $236.

๐Ÿ“… Best time to fly

April is historically the cheapest month to fly

Historically, April is the cheapest month to fly from Denver to Seattle, with a median price of $93.

โฑ๏ธ Flight duration

Direct flights take 5h 58m on average

The typical flight duration from Denver to Seattle is 5h 58m, covering 1645 km.

โœˆ๏ธ Airlines & availability

70% of deals are for direct flights

70% of deals from Denver to Seattle are for direct flights, with frequent deals available.

๐Ÿ† Airline highlight

Frontier Airlines offers direct flights

Frontier Airlines is one of the airlines offering direct flights from Denver to Seattle.

๐ŸŽฏ Booking tip

Deals appear frequently for this route

Deals for flights from Denver to Seattle appear frequently, with over 1 deal per day.

Denver main airports to depart from

Denver International (DEN)

Cheapest

Denver International Airport is the cheapest option for flights from Denver to Seattle.

๐Ÿ“ ~48 km from Denver (reachable by car or train)

๐Ÿ’ธ Flights from ~$89

Seattle main airports to arrive at

Seattleโ€“Tacoma International (SEA)

Cheapest

Seattleโ€“Tacoma International Airport is a primary arrival option for flights from Denver to Seattle.

๐Ÿ“ ~20 km from Seattle (reachable by car)

๐Ÿ’ธ Flights from ~$89

Boeing Field (BFI)

Boeing Field offers an alternative arrival point for travelers flying from Denver to Seattle.

๐Ÿ“ ~10 km from Seattle (reachable by car)

๐Ÿ’ธ Flights from ~$527

Kenmore Air Harbor Seaplane Base (LKE)

Kenmore Air Harbor Seaplane Base provides a unique arrival experience for flights from Denver.

๐Ÿ“ ~3 km from Seattle (reachable by car)

๐Ÿ’ธ Flights from ~$1089

Airports nearby Seattle used as alternative

Paine Field Everett (PAE)

Consider Paine Field Everett for a more streamlined terminal experience and shorter security wait times.

๐Ÿ“ ~40 km from Seattle (reachable by car)

๐Ÿ’ธ Flights from ~$198

Portland International (PDX)

Cheapest

Portland International is a major hub that can offer competitive fares, especially for long-haul flights.

๐Ÿ“ ~230 km from Seattle (reachable by car or train)

๐Ÿ’ธ Flights from ~$96

Vancouver International (YVR)

Vancouver International is a major international gateway with extensive flight options, potentially with lower fares.

๐Ÿ“ ~230 km from Seattle (reachable by car, requires international border crossing)

๐Ÿ’ธ Flights from ~$222

Bellingham International (BLI)

Bellingham International is a primary low-cost carrier airport with easier parking and faster processing.

๐Ÿ“ ~145 km from Seattle (reachable by car)

๐Ÿ’ธ Flights from ~$228

Abbotsford International (YXX)

Abbotsford International can be an alternative low-cost gateway for Canadian domestic connections.

๐Ÿ“ ~160 km from Seattle (reachable by car, requires international border crossing)

๐Ÿ’ธ Flights from ~$273

Business & First Class Flight Deals to Seattle

Discover luxury on the budget with premium cabin class on flights from Denver to Seattle.

Elite

Best Elite deals to Seattle

Exclusive daily First Class, Business Class, and Premium Economy flight deals, refreshed every 24 hours.

From DEN

Elite

Aug 07

Seattle, United States

76% AI deal score

$1,174

$717

Save $457

From DEN

Elite

Aug 07

Seattle, United States

75% AI deal score

$1,170

$756

Save $414

From DEN

Elite

Aug 07

Seattle, United States

74% AI deal score

$1,174

$777

Save $397

From DEN

Elite

Aug 07

Seattle, United States

74% AI deal score

$1,167

$777

Save $390

From DEN

Elite

Aug 07

Seattle, United States

74% AI deal score

$1,160

$777

Save $383

From DEN

Elite

Jul 29

Seattle, United States

68% AI deal score

$1,168

$871

Save $297

From DEN

Elite

Aug 03

Seattle, United States

68% AI deal score

$1,158

$871

Save $287

From DEN

Elite

Aug 06

Seattle, United States

68% AI deal score

$1,149

$871

Save $278

From DEN

Elite

Aug 02

Seattle, United States

68% AI deal score

$1,165

$872

Save $293

From DEN

Elite

Aug 26

Seattle, United States

68% AI deal score

$754

$667

Save $87

From DEN

Elite

Aug 12

Seattle, United States

68% AI deal score

$746

$667

Save $79

From DEN

Elite

Aug 01

Seattle, United States

67% AI deal score

$798

$635

Save $163

From DEN

Elite

Aug 04

Seattle, United States

67% AI deal score

$783

$635

Save $148

From DEN

Elite

Aug 05

Seattle, United States

67% AI deal score

$779

$635

Save $144

From DEN

Elite

Aug 01

Seattle, United States

67% AI deal score

$1,158

$896

Save $262

From DEN

Elite

Sep 06

Seattle, United States

66% AI deal score

$1,130

$895

Save $235

From DEN

Elite

Aug 01

Seattle, United States

66% AI deal score

$766

$635

Save $131

From DEN

Elite

Aug 01

Seattle, United States

66% AI deal score

$765

$635

Save $130

From DEN

Elite

Aug 04

Seattle, United States

66% AI deal score

$760

$635

Save $125

From DEN

Elite

Aug 05

Seattle, United States

66% AI deal score

$765

$635

Save $130

From DEN

Elite

Aug 05

Seattle, United States

66% AI deal score

$761

$635

Save $126

From DEN

Elite

Aug 08

Seattle, United States

66% AI deal score

$774

$635

Save $139

From DEN

Elite

Aug 22

Seattle, United States

66% AI deal score

$746

$635

Save $111

From DEN

Elite

Aug 01

Seattle, United States

66% AI deal score

$775

$655

Save $120

From DEN

Elite

Aug 03

Seattle, United States

66% AI deal score

$792

$655

Save $137

From DEN

Elite

Aug 03

Seattle, United States

66% AI deal score

$779

$655

Save $124

From DEN

Elite

Aug 04

Seattle, United States

66% AI deal score

$769

$655

Save $114

From DEN

Elite

Aug 05

Seattle, United States

66% AI deal score

$766

$655

Save $111

From DEN

Elite

Aug 06

Seattle, United States

66% AI deal score

$786

$655

Save $131

From DEN

Elite

Aug 06

Seattle, United States

66% AI deal score

$766

$655

Save $111

From DEN

Elite

Aug 06

Seattle, United States

66% AI deal score

$765

$655

Save $110

From DEN

Elite

Aug 02

Seattle, United States

66% AI deal score

$801

$656

Save $145

From DEN

Elite

Aug 02

Seattle, United States

66% AI deal score

$775

$656

Save $119

From DEN

Elite

Aug 07

Seattle, United States

66% AI deal score

$781

$656

Save $125

From DEN

Elite

Aug 07

Seattle, United States

66% AI deal score

$774

$656

Save $118

From DEN

Elite

Jun 23

Seattle, United States

66% AI deal score

$1,038

$1,017

Save $21

From DEN

Elite

Sep 08

Seattle, United States

65% AI deal score

$673

From DEN

Elite

Sep 09

Seattle, United States

65% AI deal score

$674

From DEN

Elite

Sep 01

Seattle, United States

65% AI deal score

$674

From DEN

Elite

Sep 05

Seattle, United States

65% AI deal score

$674

From DEN

Elite

Sep 01

Seattle, United States

65% AI deal score

$674

From DEN

Elite

Sep 09

Seattle, United States

65% AI deal score

$674

From DEN

Elite

Sep 05

Seattle, United States

65% AI deal score

$674

From DEN

Elite

Sep 01

Seattle, United States

65% AI deal score

$674

From DEN

Elite

Sep 05

Seattle, United States

65% AI deal score

$674

From DEN

Elite

Sep 01

Seattle, United States

65% AI deal score

$674

From DEN

Elite

Nov 14

Seattle, United States

65% AI deal score

$674

From DEN

Elite

Nov 14

Seattle, United States

65% AI deal score

$674

From DEN

Elite

Sep 08

Seattle, United States

65% AI deal score

$675

From DEN

Elite

Aug 01

Seattle, United States

65% AI deal score

$765

$655

Save $110

From DEN

Elite

Aug 03

Seattle, United States

65% AI deal score

$765

$655

Save $110

From DEN

Elite

Aug 05

Seattle, United States

65% AI deal score

$756

$655

Save $101

From DEN

Elite

Aug 01

Seattle, United States

65% AI deal score

$765

$656

Save $109

From DEN

Elite

Aug 02

Seattle, United States

65% AI deal score

$766

$656

Save $110

From DEN

Elite

Aug 07

Seattle, United States

65% AI deal score

$761

$656

Save $105

From DEN

Elite

Aug 03

Seattle, United States

65% AI deal score

$787

$675

Save $112

From DEN

Elite

Aug 06

Seattle, United States

65% AI deal score

$779

$675

Save $104

From DEN

Elite

Sep 09

Seattle, United States

65% AI deal score

$675

From DEN

Elite

Sep 12

Seattle, United States

65% AI deal score

$675

From DEN

Elite

Aug 02

Seattle, United States

65% AI deal score

$789

$676

Save $113

From DEN

Elite

Aug 07

Seattle, United States

65% AI deal score

$774

$676

Save $98

From DEN

Elite

Sep 08

Seattle, United States

65% AI deal score

$673

$667

Save $6

From DEN

Elite

Sep 05

Seattle, United States

65% AI deal score

$670

$667

Save $3

From DEN

Elite

Sep 08

Seattle, United States

65% AI deal score

$674

$667

Save $7

From DEN

Elite

Sep 09

Seattle, United States

50% AI deal score

$674

From DEN

Elite

Sep 01

Seattle, United States

50% AI deal score

$674

From DEN

Elite

Sep 09

Seattle, United States

50% AI deal score

$674

From DEN

Elite

Aug 04

Seattle, United States

50% AI deal score

$747

$655

Save $92

From DEN

Elite

Aug 05

Seattle, United States

50% AI deal score

$743

$656

Save $87

From DEN

Elite

Aug 06

Seattle, United States

50% AI deal score

$761

$675

Save $86

From DEN

Elite

Sep 09

Seattle, United States

50% AI deal score

$675

From DEN

Elite

Aug 02

Seattle, United States

50% AI deal score

$766

$676

Save $90

From DEN

Elite

Aug 07

Seattle, United States

50% AI deal score

$760

$676

Save $84

From DEN

Elite

Aug 02

Seattle, United States

50% AI deal score

$766

$677

Save $89

From DEN

Elite

Jun 19

Seattle, United States

50% AI deal score

$946

$835

Save $111

From DEN

Elite

Jul 29

Seattle, United States

50% AI deal score

$667

From DEN

Elite

Jul 29

Seattle, United States

50% AI deal score

$667

From DEN

Elite

Jul 25

Seattle, United States

50% AI deal score

$667

From DEN

Elite

Jul 14

Seattle, United States

50% AI deal score

$667

From DEN

Elite

Jul 21

Seattle, United States

50% AI deal score

$667

From DEN

Elite

Jul 29

Seattle, United States

50% AI deal score

$687

From DEN

Elite

Jul 19

Seattle, United States

50% AI deal score

$688

From DEN

Elite

Jul 29

Seattle, United States

50% AI deal score

$688

From DEN

Elite

Jul 08

Seattle, United States

50% AI deal score

$698

From DEN

Elite

Jul 08

Seattle, United States

50% AI deal score

$699

From DEN

Elite

Jul 26

Seattle, United States

50% AI deal score

$709

From DEN

Elite

Jul 12

Seattle, United States

50% AI deal score

$709

From DEN

Elite

Jun 28

Seattle, United States

50% AI deal score

$779

From DEN

Elite

Oct 14

Seattle, United States

49% AI deal score

$1,124

$978

Save $146

From DEN

Elite

Aug 04

Seattle, United States

49% AI deal score

$738

$656

Save $82

From DEN

Elite

Aug 03

Seattle, United States

49% AI deal score

$756

$675

Save $81

From DEN

Elite

Aug 03

Seattle, United States

49% AI deal score

$756

$676

Save $80

From DEN

Elite

Aug 06

Seattle, United States

49% AI deal score

$756

$676

Save $80

From DEN

Elite

Aug 07

Seattle, United States

49% AI deal score

$757

$677

Save $80

From DEN

Elite

Jul 12

Seattle, United States

49% AI deal score

$782

From DEN

Elite

Jun 23

Seattle, United States

49% AI deal score

$916

$835

Save $81

From DEN

Elite

Jun 23

Seattle, United States

48% AI deal score

$1,044

From DEN

Elite

Jul 11

Seattle, United States

48% AI deal score

$696

$656

Save $40

From DEN

Elite

Aug 31

Seattle, United States

48% AI deal score

$730

$676

Save $54

From DEN

Elite

Aug 09

Seattle, United States

48% AI deal score

$721

$677

Save $44

Frequently Asked Questions About Flights to Seattle

Historically, the lowest average prices for flights from Denver to Seattle are found when booking 60+ days in advance, with an average price of $264. Prices tend to increase as the departure date approaches. For instance, flights booked 28-59 days out typically average around $277, while those booked within 0-6 days of departure can average as high as $650. Planning ahead by at least two months generally yields the most favorable fares.

Across the trailing quarter, a good price for a flight from Denver to Seattle was considered to be $108 or less. The median price for this route was $236. Prices can vary, with 75% of fares historically falling below $431. Travelers aiming for the most budget-friendly options should target prices at or below the $108 threshold.

Historically, April has been the cheapest month to fly from Denver to Seattle, with a median price of $93. November also offers relatively low fares, with a median price of $112. The annual median price for this route is $236, indicating that these months provide significant savings compared to the yearly average.