How many flights from Seattle to Denver are non-stop?

Historically, approximately 37.4% of flights from Seattle to Denver were non-stop. For flights that included stopovers, the median number of stopovers was 1. This indicates that while direct options are available, a notable portion of flights on this route involve at least one connection. Travelers seeking direct routes should consider this percentage when planning their journey.

How many hours is the flight from Seattle to Denver?

The median duration for a direct flight from Seattle to Denver is typically 2 hours and 50 minutes. Flights with one stop, however, historically had a significantly longer median duration of 10 hours and 20 minutes. The direct route covers a distance of 1645 kilometers. Travelers should account for these differences in flight time when choosing between direct and connecting options.

How often do cheap flights from Seattle to Denver come up?

Historically, cheap flights from Seattle to Denver are classified as frequent. This suggests that opportunities for finding budget-friendly fares on this route arise regularly. Travelers can typically expect to see favorable pricing options appear with some consistency, making it a route where good deals are not uncommon.

Flights From Seattle

To Denver

Cheap Flights from Seattle to Denver

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

Deals from

Seattle

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

Prices updated 1 day ago

462 airlines compared

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Fares are subject to change and may not be available for all dates. (Data last updated Sep 15, 2026.)

Today’s best flight deals from Seattle to Denver

Explore current cheapest deals departing from Seattle to Denver

2026-10-09 – 2026-10-23
SEA - Denver
72% AI deal score
$95
$72
Round trip
2026-10-19 – 2026-10-22
SEA - Denver
75% AI deal score
$115
$73
Round trip
2026-11-07 – 2026-11-14
SEA - Denver
72% AI deal score
$103
$76
Round trip
2026-11-11 – 2026-11-18
SEA - Denver
72% AI deal score
$106
$77
Round trip
2026-11-23 – 2026-11-26
SEA - Denver
72% AI deal score
$110
$79
Round trip
2026-11-14 – 2026-11-18
SEA - Denver
72% AI deal score
$110
$80
Round trip
2026-11-14 – 2026-11-16
SEA - Denver
68% AI deal score
$111
$81
Round trip
2026-10-24 – 2026-10-25
SEA - Denver
67% AI deal score
$114
$84
Round trip
2026-10-09 – 2026-10-14
SEA - Denver
67% AI deal score
$113
$87
Round trip
2026-10-03 – 2026-10-06
SEA - Denver
67% AI deal score
$118
$90
Round trip

Seattle to Denver: Overview

Insights for flights from Seattle to Denver

Most itineraries for flights from Seattle to Denver connect at least once, with only 37.4% of recent fares being non-stop. For connecting itineraries, the typical number of stopovers is 1. This means that while direct flights from Seattle to Denver are available, you'll frequently find options that include a layover.

When considering cheap flights from Seattle to Denver, fares typically range from $230–$497, with a median of $310. Right now, current fares are below the typical level, and only 2% of recent fares were classified as a good price. New deals appear almost daily, so setting up a price alert could be beneficial.

If you're looking for the cheapest time to fly from Seattle to Denver, you'll find that April offers the lowest median fare at $118. Other cost-effective months include November, with a median fare of $192, and February, where the median fare is $225.

A typical journey from Seattle to Denver takes about 2h 50m, including connections. For non-stop flights, the median flight time is also 2h 50m, while connecting flights have a significantly longer median duration of 12h 55m.

The distance between Seattle and Denver is 1645 kilometers, classifying this as a medium-haul route. This distance typically translates to a flight duration that is manageable for most travelers, whether flying direct or with a single connection.

How much is a round trip from Seattle to Denver

Regular price: $76 - $240

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

The regular price range for flights from Seattle to Denver is $76 to $240. The current lowest deal is $72 with Frontier Airlines for travel from Oct 9-Oct 23.

now $72

Low $76

High $240

The cheapest time to fly from Seattle to Denver

The cheapest month to fly from Seattle to Denver is February, with a median price of $149. The most expensive month is July, with a median price of $422. Prices are generally lower from January to December.

February

Cheapest

Flights from $149

July

Most Expensive

Flights from $422

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from Seattle to Denver

Frontier Airlines

Last-minute flights going from Seattle to Denver

Tue, Sep 15

⌛ Last-Minute

SEA - Denver

Seattle (SEA) - Denver (DEN)

Frontier Airlines

$411

$362

One-way

Wed, Sep 16

⌛ Last-Minute

SEA - Denver

Seattle (SEA) - Denver (DEN)

Frontier Airlines

$408

$357

One-way

Wed, Sep 16

⌛ Last-Minute

SEA - Denver

Seattle (SEA) - Denver (DEN)

Frontier Airlines

$411

$359

One-way

Thu, Sep 17

⌛ Last-Minute

SEA - Denver

Seattle (SEA) - Denver (DEN)

Frontier Airlines

$399

$356

One-way

Fri, Sep 18

⌛ Last-Minute

SEA - Denver

Seattle (SEA) - Denver (DEN)

Frontier Airlines

$394

$340

One-way

Fri, Sep 18

⌛ Last-Minute

SEA - Denver

Seattle (SEA) - Denver (DEN)

Frontier Airlines

$401

$360

One-way

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

3 nights

Oct 27 - Oct 30

$346 → $162

53%

1 night

Sep 29 - Sep 30

$237 → $112

53%

1 night

Nov 10 - Nov 11

$200 → $103

49%

2 nights

Nov 4 - Nov 6

$358 → $267

25%

Popular Airports to fly from Seattle to Denver

Seattle - Denver route insights

💸 Price insights

Recent fares are below the typical level

Recent fares for Seattle to Denver are below the typical level, with a median price of $310.

📅 Best time to fly

April is historically the cheapest month to fly

Historically, April is the cheapest month to fly from Seattle to Denver, with a median price of $118.

⏱️ Flight duration

Direct flights take 2h 50m

Direct flights from Seattle to Denver typically take 2h 50m, while connecting flights average 12h 55m.

✈️ Airlines & availability

Connecting flights are more common

Connecting flights are more common on this route, making up 62.6% of recent bookings.

🏆 Airline highlight

Frontier Airlines offers direct flights

Frontier Airlines offers direct flights on this route, with one recent deal found.

🎯 Booking tip

Deals appear frequently on this route

Deals for flights from Seattle to Denver appear frequently, with a good price share of 2%.

Seattle main airports to depart from

Seattle–Tacoma International (SEA)

Cheapest

Seattle–Tacoma International Airport is a good option for flights from Seattle to Denver.

📍 ~18 km from Seattle city center (reachable by car or train)

💸 Flights from ~$102

Denver main airports to arrive at

Denver International (DEN)

Cheapest

Denver International Airport is a convenient arrival option for flights from Seattle to Denver.

📍 ~30 km from Denver (reachable by car)

💸 Flights from ~$146

Airports nearby Denver used as alternative

Colorado Springs (COS)

Cheapest

Colorado Springs is a reliable alternative with robust flight schedules, though I-25 traffic can impact travel time.

📍 ~110 km from Denver (reachable by car)

💸 Flights from ~$288

Business & First Class Flight Deals to Denver

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

Elite

Best Elite deals to Denver

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

From SEA

Elite

Oct 31

Denver, United States

77% AI deal score

$839

$600

Save $239

United Airlines

Business Class

From SEA

Elite

Dec 01

Denver, United States

76% AI deal score

$815

$600

Save $215

United Airlines

Business Class

From SEA

Elite

Oct 20

Denver, United States

76% AI deal score

$787

$600

Save $187

United Airlines

Business Class

From SEA

Elite

Oct 28

Denver, United States

76% AI deal score

$760

$600

Save $160

United Airlines

Business Class

From SEA

Elite

Oct 31

Denver, United States

76% AI deal score

$829

$605

Save $224

United Airlines

Business Class

From SEA

Elite

Oct 27

Denver, United States

76% AI deal score

$813

$605

Save $208

United Airlines

Business Class

From SEA

Elite

Oct 10

Denver, United States

76% AI deal score

$797

$605

Save $192

United Airlines

Business Class

From SEA

Elite

Oct 14

Denver, United States

76% AI deal score

$797

$605

Save $192

United Airlines

Business Class

From SEA

Elite

Oct 31

Denver, United States

72% AI deal score

$759

$600

Save $159

United Airlines

Business Class

From SEA

Elite

Oct 13

Denver, United States

71% AI deal score

$728

$600

Save $128

United Airlines

Business Class

From SEA

Elite

Oct 06

Denver, United States

71% AI deal score

$728

$600

Save $128

United Airlines

Business Class

From SEA

Elite

Oct 21

Denver, United States

71% AI deal score

$736

$600

Save $136

United Airlines

Business Class

Frequently Asked Questions About Flights to Denver

Historically, the best time to book flights from Seattle to Denver for the cheapest prices is typically 28-59 days before departure. During this window, the average price observed was $347. Booking within 0-6 days of departure generally saw prices rise to an average of $532, while booking 7-13 days out resulted in an average price of $677. Planning ahead by at least one to two months can lead to significant savings on this route.

Across the trailing quarter, a good price for a flight from Seattle to Denver was considered to be $230 or less. The median price for this route was $310. Prices historically ranged, with 75% of observed fares being $497 or less. Travelers aiming for a budget-friendly trip should target fares around the $230 mark.

Based on historical data, April is typically the cheapest month to fly from Seattle to Denver, with a median price of $118. November also offered favorable prices, with a median of $192, followed by February at $225. The annual median price for this route was $310, indicating that certain months offer substantial savings compared to the yearly average.

Related routes

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Flights to Denver from other cities

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Seattle to Denver: Overview

Insights for flights from Seattle to Denver

How much is a round trip from Seattle to Denver

Regular price: $76 - $240

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

The regular price range for flights from Seattle to Denver is $76 to $240. The current lowest deal is $72 with Frontier Airlines for travel from Oct 9-Oct 23.

now $72

Low $76

High $240

The cheapest time to fly from Seattle to Denver

February

Cheapest

Flights from $149

July

Most Expensive

Flights from $422

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from Seattle to Denver

Frontier Airlines

Last-minute flights going from Seattle to Denver

Tue, Sep 15

⌛ Last-Minute

SEA - Denver

Seattle (SEA) - Denver (DEN)

Frontier Airlines

$411

$362

One-way

Wed, Sep 16

⌛ Last-Minute

SEA - Denver

Seattle (SEA) - Denver (DEN)

Frontier Airlines

$408

$357

One-way

Wed, Sep 16

⌛ Last-Minute

SEA - Denver

Seattle (SEA) - Denver (DEN)

Frontier Airlines

$411

$359

One-way

Thu, Sep 17

⌛ Last-Minute

SEA - Denver

Seattle (SEA) - Denver (DEN)

Frontier Airlines

$399

$356

One-way

Fri, Sep 18

⌛ Last-Minute

SEA - Denver

Seattle (SEA) - Denver (DEN)

Frontier Airlines

$394

$340

One-way

Fri, Sep 18

⌛ Last-Minute

SEA - Denver

Seattle (SEA) - Denver (DEN)

Frontier Airlines

$401

$360

One-way

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

3 nights

Oct 27 - Oct 30

$346 → $162

53%

1 night

Sep 29 - Sep 30

$237 → $112

53%

1 night

Nov 10 - Nov 11

$200 → $103

49%

2 nights

Nov 4 - Nov 6

$358 → $267

25%

Popular Airports to fly from Seattle to Denver

Seattle - Denver route insights

💸 Price insights

Recent fares are below the typical level

Recent fares for Seattle to Denver are below the typical level, with a median price of $310.

📅 Best time to fly

April is historically the cheapest month to fly

Historically, April is the cheapest month to fly from Seattle to Denver, with a median price of $118.

⏱️ Flight duration

Direct flights take 2h 50m

Direct flights from Seattle to Denver typically take 2h 50m, while connecting flights average 12h 55m.

✈️ Airlines & availability

Connecting flights are more common

Connecting flights are more common on this route, making up 62.6% of recent bookings.

🏆 Airline highlight

Frontier Airlines offers direct flights

Frontier Airlines offers direct flights on this route, with one recent deal found.

🎯 Booking tip

Deals appear frequently on this route

Deals for flights from Seattle to Denver appear frequently, with a good price share of 2%.

Seattle main airports to depart from

Seattle–Tacoma International (SEA)

Cheapest

Seattle–Tacoma International Airport is a good option for flights from Seattle to Denver.

📍 ~18 km from Seattle city center (reachable by car or train)

💸 Flights from ~$102

Denver main airports to arrive at

Denver International (DEN)

Cheapest

Denver International Airport is a convenient arrival option for flights from Seattle to Denver.

📍 ~30 km from Denver (reachable by car)

💸 Flights from ~$146

Airports nearby Denver used as alternative

Colorado Springs (COS)

Cheapest

Colorado Springs is a reliable alternative with robust flight schedules, though I-25 traffic can impact travel time.

Denver, United States

71% AI deal score

$736

$600

Save $136

United Airlines

Business Class

Frequently Asked Questions About Flights to Denver

Cheap Flights from Seattle to Denver

Today’s best flight deals from Seattle to Denver

Seattle to Denver: Overview

Insights for flights from Seattle to Denver

How much is a round trip from Seattle to Denver

The cheapest time to fly from Seattle to Denver

Direct flights from Seattle to Denver

Last-minute flights going from Seattle to Denver

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

Popular Airports to fly from Seattle to Denver

Seattle - Denver route insights

Recent fares are below the typical level

April is historically the cheapest month to fly

Direct flights take 2h 50m

Connecting flights are more common

Frontier Airlines offers direct flights

Deals appear frequently on this route

Seattle main airports to depart from

Denver main airports to arrive at

Airports nearby Denver used as alternative

Business & First Class Flight Deals to Denver

Best Elite deals to Denver

Oct 31

Dec 01

Oct 20

Oct 28

Oct 31

Oct 27

Oct 10

Oct 14

Oct 31

Oct 13

Oct 06

Oct 21

Frequently Asked Questions About Flights to Denver

How early should I book Seattle to Denver flights to get the cheapest price?

What's a cheap fare from Seattle to Denver?

What's the best month to fly from Seattle to Denver?

How many flights from Seattle to Denver are non-stop?

How many hours is the flight from Seattle to Denver?

How often do cheap flights from Seattle to Denver come up?

Related routes

More routes from Seattle

Flights to Denver from other cities

Seattle to Denver: Overview

Insights for flights from Seattle to Denver

How much is a round trip from Seattle to Denver

The cheapest time to fly from Seattle to Denver

Direct flights from Seattle to Denver

Last-minute flights going from Seattle to Denver

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

Popular Airports to fly from Seattle to Denver

Seattle - Denver route insights

Recent fares are below the typical level

April is historically the cheapest month to fly

Direct flights take 2h 50m

Connecting flights are more common

Frontier Airlines offers direct flights

Deals appear frequently on this route

Seattle main airports to depart from

Denver main airports to arrive at

Airports nearby Denver used as alternative

Business & First Class Flight Deals to Denver

Best Elite deals to Denver

Oct 31

Dec 01

Oct 20

Oct 28

Oct 31

Oct 27

Oct 10

Oct 14

Oct 31

Oct 13

Oct 06

Oct 21

Frequently Asked Questions About Flights to Denver

How early should I book Seattle to Denver flights to get the cheapest price?

What's a cheap fare from Seattle to Denver?

What's the best month to fly from Seattle to Denver?