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

Across the trailing 90 days, approximately 37.4% of flights from Seattle to Denver were non-stop. For flights that include stopovers, travelers typically experience one stop. This means a significant portion of available flights on this route involve at least one connection. When planning your trip, consider both direct and connecting options.

How many hours is the flight from Seattle to Denver?

The median direct flight from Seattle to Denver typically takes 2 hours and 50 minutes. For flights with one stop, the median duration is considerably longer, averaging 10 hours and 20 minutes. The distance covered on this route is approximately 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 come up frequently. This route is classified as one where deals appear with high regularity. Travelers looking for budget-friendly options on this route can typically find them without extensive waiting. This consistent availability makes it easier to plan a trip to Denver from Seattle.

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 2 days ago

405 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated Jul 26, 2026.)

Today’s best flight deals from Seattle to Denver

Explore current cheapest deals departing from Seattle to Denver

2026-09-11 – 2026-09-23
SEA - Denver
75% AI deal score
$97
$66
Round trip
2026-09-24 – 2026-09-26
SEA - Denver
76% AI deal score
$121
$72
Round trip
2026-09-26 – 2026-09-30
SEA - Denver
75% AI deal score
$121
$77
Round trip
2026-10-25 – 2026-10-28
SEA - Denver
75% AI deal score
$125
$79
Round trip
2026-11-10 – 2026-11-14
SEA - Denver
76% AI deal score
$131
$79
Round trip
2026-09-11 – 2026-09-24
SEA - Denver
65% AI deal score
$97
$82
Round trip
2026-09-09 – 2026-09-15
SEA - Denver
67% AI deal score
$111
$84
Round trip
2026-08-21 – 2026-08-24
SEA - Denver
75% AI deal score
$137
$87
Round trip
2026-08-26 – 2026-08-30
SEA - Denver
75% AI deal score
$137
$87
Round trip
2026-08-28 – 2026-08-30
SEA - Denver
75% AI deal score
$138
$87
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 those flights that do include connections, the typical number of stopovers is one. This means you'll often find yourself with a layover, so factoring in connection time is important when planning your journey.

If you are looking for cheap flights from Seattle to Denver, the fares right now are typically $230–$497, with a median of $310. Current fares are below the typical level, and only 2% of recent fares were classified as a good price. New deals appear almost daily, offering frequent opportunities to find better prices.

When is the cheapest time to fly from Seattle to Denver? The most affordable month to fly is April, with a median fare of just $118. Other budget-friendly options include November, where median fares are around $192, and February, with a median of $225. Planning your trip during these months could lead to significant savings.

A typical journey from Seattle to Denver takes about 2h 50m for direct flights. However, since most itineraries involve connections, a typical journey including connections can extend to 12h 55m. This difference is substantial, so travelers should consider whether the cost savings of a connecting flight outweigh the extended travel time.

The distance between Seattle and Denver is approximately 1645 kilometers. This route is classified as a medium-haul flight, meaning it's too long for a short hop but not a full-day international journey. This distance generally implies a flight duration that makes connections a more common occurrence for many travelers.

How much is a round trip from Seattle to Denver

Regular price: $89 - $243

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

The regular price range for flights from Seattle to Denver is $89 to $243. The current lowest deal is $65 with Frontier Airlines, for travel from Sep 2-Sep 6.

now $65

Low $89

High $243

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

Sat, Aug 1

⌛ Last-Minute

SEA - Denver

Seattle (SEA) - Denver (DEN)

Alaska Airlines, Inc.

$224

$213

One-way

Tue, Aug 4

⌛ Last-Minute

SEA - Denver

Seattle (SEA) - Denver (DEN)

Frontier Airlines

$301

$258

One-way

Thu, Aug 6

⌛ Last-Minute

SEA - Denver

Seattle (SEA) - Denver (DEN)

Frontier Airlines

$150

$122

One-way

Thu, Aug 6

⌛ Last-Minute

SEA - Denver

Seattle (SEA) - Denver (DEN)

Frontier Airlines

$144

$127

One-way

Mon, Aug 10

⌛ Last-Minute

SEA - Denver

Seattle (SEA) - Denver (DEN)

Frontier Airlines

$262

$212

One-way

Wed, Aug 12

⌛ Last-Minute

SEA - Denver

Seattle (SEA) - Denver (DEN)

Frontier Airlines

$143

$121

One-way

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

4 nights

Dec 9 - Dec 13

$647 → $247

62%

28 nights

Dec 3 - Dec 31

$537 → $291

46%

2 nights

Aug 24 - Aug 26

$245 → $119

52%

2 nights

Aug 17 - Aug 19

$251 → $151

40%

Popular Airports to fly from Seattle to Denver

Seattle - Denver route insights

💸 Price insights

Recent fares are below the typical level

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

📅 Best time to fly

Fly in April for the lowest median prices

Historically, April offers the lowest median prices at $118, making it a good time to fly.

⏱️ 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 make up 62.6% of recent bookings, with a median of 1 stopover.

🏆 Airline highlight

Frontier Airlines offers direct flights

Frontier Airlines provides direct flight options for the Seattle to Denver route.

🎯 Booking tip

Deals appear frequently on this route

Deals for flights from Seattle to Denver are frequent, appearing often over a 30-day window.

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 city center (reachable by car or train)

💸 Flights from ~$55

Denver main airports to arrive at

Denver International (DEN)

Cheapest

Denver International Airport is the primary arrival airport for flights from Seattle to Denver.

📍 ~30 km from city center (reachable by car)

💸 Flights from ~$55

Airports nearby Denver used as alternative

Colorado Springs (COS)

Colorado Springs (COS) is a reliable alternative due to its size and robust flight schedule.

📍 ~110 km from Denver (reachable by car)

💸 Flights from ~$268

Business & First Class Flight Deals to Denver

82% AI deal score

$907

$567

Save $340

Frequently Asked Questions About Flights to Denver

Historically, the lowest average prices for flights from Seattle to Denver are found when booking 28-59 days in advance, with an average price of $347. Booking within 0-6 days of departure typically sees the highest prices, averaging around $532. Prices generally increase significantly for last-minute bookings, with flights booked 7-13 days out averaging $677. Planning ahead by at least a month can lead to considerable savings on this route.

Across the trailing quarter, a good price for a flight from Seattle to Denver is considered to be $230 or less. The median price for this route was $310. Fares can go higher, with 75% of prices observed being $497 or less. Travelers aiming for a budget-friendly trip should target prices at or below the $230 threshold.

Historically, April has been the cheapest month to fly from Seattle to Denver, with a median price of $118. Other historically affordable months include November, with a median price of $192, and February, with a median price of $225. The annual median price for this route is $310, indicating that certain months offer significant savings compared to the yearly average.

Related routes

More routes from Seattle

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Flights to Denver from other cities

Flights from Albuquerque to Denver Flights from Anchorage to Denver Flights from Atlanta to Denver Flights from Austin to Denver Flights from Billings to Denver Flights from Salt Lake City to Denver Flights from San Francisco to Denver Flights from San Jose to Denver Flights from St. Louis to Denver Flights from Tampa to Denver Flights from Tucson to Denver Flights from Washington, D.C. to Denver

Seattle to Denver: Overview

Insights for flights from Seattle to Denver

How much is a round trip from Seattle to Denver

Regular price: $89 - $243

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

The regular price range for flights from Seattle to Denver is $89 to $243. The current lowest deal is $65 with Frontier Airlines, for travel from Sep 2-Sep 6.

now $65

Low $89

High $243

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