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SEA - DEN

Find cheap flights from Seattle to Denver from £55

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Denver departing on 28/5. 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.
1 adult
0 bags
Sun 28/4
Sun 5/5

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Denver, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Denver, as well as popular online travel agencies
In the last 7 days, travellers have searched 46,342,885 times on KAYAK, and here's why:

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Cheap flight deals from Seattle to Denver

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Denver that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
18:33 - 22:23SEA-DEN
2h 50mdirect
18:25 - 20:35DEN-SEA
3h 10mdirect
£81Frontier
Find Deal
Wed, 10 Apr - Tue, 16 Apr
22:12 - 01:56SEA-DEN
2h 44mdirect
05:11 - 07:20DEN-SEA
3h 09mdirect
£92Frontier
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Tue, 9 Apr - Mon, 15 Apr
19:35 - 23:13SEA-DEN
2h 38mdirect
06:15 - 08:28DEN-SEA
3h 13mdirect
£109Delta
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Wed, 24 Apr - Sun, 28 Apr
19:35 - 23:13SEA-DEN
2h 38mdirect
12:29 - 14:24DEN-SEA
2h 55mdirect
£109Delta
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Mon, 29 Apr - Tue, 7 May
06:00 - 09:44SEA-DEN
2h 44mdirect
21:59 - 23:58DEN-SEA
2h 59mdirect
£110Alaska Airlines
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Sat, 22 Jun - Sat, 29 Jun
20:15 - 23:56SEA-DEN
2h 41mdirect
21:29 - 23:29DEN-SEA
3h 00mdirect
£125Alaska Airlines
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Sun, 12 May - Sat, 25 May
22:12 - 01:56SEA-DEN
2h 44mdirect
22:59 - 18:45DEN-SEA
20h 46m2 stops
Tue, 9 Apr - Mon, 15 Apr
09:55 - 17:39SEA-DEN
6h 44m1 stop
07:35 - 16:38DEN-SEA
10h 03m2 stops
Wed, 10 Apr - Tue, 16 Apr
15:35 - 23:59SEA-DEN
7h 24m1 stop
08:00 - 12:36DEN-SEA
5h 36m1 stop
£242United Airlines
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Fri, 16 Aug - Sun, 25 Aug
07:15 - 10:12SEA-DEN
25h 57m2 stops
19:00 - 00:58DEN-SEA
6h 58m1 stop
£309United Airlines
Find Deal
Tue, 16 Apr - Tue, 30 Apr

Flights from Seattle to Denver - Travel Insights & Trends

Get data-powered insights and trends into flights from Seattle to Denver to help you find the cheapest flights, the best time to fly and much more.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Seattle to Denver, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Seattle to Denver is January, where tickets cost £125 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is £235 and £224 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Seattle to Denver, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Seattle to Denver, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 34 days before departure.

Which airlines provide the cheapest flights from Seattle to Denver?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The best deals for a one-way ticket found by KAYAK users over the last 3 days were on Delta (£55) and Frontier (£66). The cheapest round-trip tickets were found on Frontier (£81) and Delta (£109).

Which airlines fly most frequently between Seattle and Denver?

Southwest (6 flights per day), United Airlines (5 flights per day), and Alaska Airlines (4 flights per day) are the most frequent flyers of this route.

How many flights are there between Seattle and Denver per day?

Each day, there are between 18 and 25 nonstop flights that take off from Seattle and land in Denver, with an average flight time of 2h 43m. The most common departure time is 05:00 and most flights take off in the morning. Each week, there are 156 flights. The most frequent day of departure is Monday, when 16% of all weekly flights depart. The fewest flights depart on a Wednesday.

Which cabin class options are there for flights between Seattle and Denver?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 3 cabin class options for the route. These are Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from Seattle to Denver take?

The duration of a direct flight to Denver from Seattle is typically 2h 38m. The journey crosses a distance of 1,022 miles.

What’s the earliest departure time from Seattle to Denver?

Early birds can take the earliest flight from Seattle at 05:00 and will be landing in Denver at 08:44.

What’s the latest departure time from Seattle to Denver?

If you prefer to fly at night, the latest flight from Seattle to Denver jets off at 22:34 and lands at 02:21.

Good to know - Cheap tickets from Seattle to Denver

Low season

January

High season

July

Cheapest flight

£55
Best time to beat the crowds (28% less expensive on average)
Most popular time to fly (30% more expensive on average)
Flight from Seattle to Denver

When to book flights from Seattle to Denver

Are your dates flexible? Find out the best times to travel from Seattle to Denver based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Seattle to Denver

  • Is there anywhere to smoke at Seattle-Tacoma International Airport?

    While smoking is not allowed inside any of the terminals at Seattle-Tacoma International Airport, there are two locations outside where you may smoke. The first is near the north end of the baggage claim level, and the second is across from the small parking lot. To determine if you are allowed to smoke, look for ashtrays and double check that there are no airport signs prohibiting it.

  • What is there to do while waiting at Seattle-Tacoma International Airport?

    In addition to periodic live music performances, Seattle-Tacoma International Airport also has a diverse Art Walk that is 0.5 mi long and begins near Gate A 14. There are also several Digiboo self-service kiosks located throughout the airport that allow travelers to download movies and televisions shows directly onto their portable devices.

  • Are there any amenities for pets at Denver International Airport?

    There are several pet relief zones located in the centers of Terminals A, B, and C at Denver International Airport and they provide pet owners with waste disposal bags, trashcans, and running water. Additionally, there is a Paradise 4 Paws Pet Resort adjacent to the main terminal that offers both pet boarding and grooming services.

  • Where can I grab a meal at Denver International Airport?

    Boulder Beer Tap House is located in the Jeppesen Terminal of Denver International Airport and serves a selection of burgers, appetizers, and salads, while Cantina Grill is located nearby and has a Mexican-inspired menu. The Denver Chophouse is located near the A Gates and is known for its vegan and gluten-free meals.

  • What is the cheapest flight from Seattle to Denver?

    In the last 3 days, the lowest price for a flight from Seattle to Denver was £70 for a one-way ticket and £102 for a return.

  • Which airports will I be using when flying from Seattle to Denver?

    Seattle and Denver are both served by 1 main airport. You will leave Seattle from Seattle/Tacoma Intl and will be arriving at Denver Intl.

  • Which airlines offer Wi-Fi service onboard planes from Seattle to Denver?

    Alaska Airlines, Delta, American Airlines, Aeromexico, and JetBlue offer inflight Wi-Fi service on the Seattle to Denver flight route.

  • Which aircraft models fly most regularly from Seattle to Denver?

    The Boeing 737 MAX 9 is the aircraft model that flies most regularly on the Seattle to Denver flight route.

  • Which airline alliances offer flights from Seattle to Denver?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Seattle and Denver, with SkyTeam being the most commonly used for this route.

  • On which days can I fly direct from Seattle to Denver?

    There are direct flights from Seattle to Denver on a daily basis.

  • How does KAYAK find such low prices on flights from Seattle to Denver?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Denver.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Denver?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Denver from Seattle is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Denver?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Denver with an airline and back to Seattle with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Denver?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Denver from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from Seattle to Denver

  • For travelers looking for non-stop flights from Seattle to Denver, book your reservation with either United, Delta, or Frontier Airlines, as each of these companies offers many flights without layovers. If you would like some extra perks, look into flying with Southwest Airlines, as they provide free checked baggage and snacks.
  • If you’re trying to find a way to pass the time before boarding your flight from Seattle to Denver, purchase an entry ticket for the Club at SEA in Seattle-Tacoma International Airport (SEA). This lounge is open to customers of all airlines and provides guests with snacks, magazines, televisions, and games.
  • Have a question about the airport or need help finding a specific service? Look for the Airport Volunteers stationed throughout Seattle-Tacoma International Airport in bright blue jackets. These volunteers can help you find your gate, recommend dining options, and tell you about the airport’s various amenities.
  • If you are feeling sore after being cooped up in a plane for several hours, consider getting a quick massage at A Massage in Denver International Airport (DEN). With two locations near the A and B Gates, this massage parlor is a quick and convenient way to let go of any tension and stress.
  • For those that are traveling with a small child, take note of the fact that there are private nursing rooms located in each terminal of Denver International Airport. These rooms contain seating, outlets, changing tables, and sinks, and they are free to access.
See more tips

Prefer to fly direct from Seattle to Denver?

Find which airlines fly direct from Seattle/Tacoma Intl to Denver Intl, which days they fly and book direct flights.

Direct departures

Seattle/Tacoma Intl to Denver Intl

Monday

ANA, Air France, Air Tahiti Nui, +16 more

ANA, Air France, +17 more

Tuesday

ANA, Air France, Air Tahiti Nui, +15 more

ANA, Air France, +16 more

Wednesday

ANA, Air France, Air Tahiti Nui, +16 more

ANA, Air France, +17 more

Thursday

ANA, Air France, Air Tahiti Nui, +16 more

ANA, Air France, +17 more

Friday

ANA, Air France, Air Tahiti Nui, +16 more

ANA, Air France, +17 more

Saturday

ANA, Air Tahiti Nui, Alaska Airlines, +16 more

ANA, Air Tahiti Nui, +17 more

Sunday

ANA, Air France, Air Tahiti Nui, +16 more

ANA, Air France, +17 more

See more direct flights

Direct returns

Denver Intl to Seattle/Tacoma Intl

Monday

ANA, Air France, Air Tahiti Nui, +17 more

ANA, Air France, +18 more

Tuesday

ANA, Air France, Air Tahiti Nui, +14 more

ANA, Air France, +15 more

Wednesday

ANA, Air France, Air Tahiti Nui, +15 more

ANA, Air France, +16 more

Thursday

ANA, Air France, Air Tahiti Nui, +15 more

ANA, Air France, +16 more

Friday

ANA, Air France, Air Tahiti Nui, +17 more

ANA, Air France, +18 more

Saturday

ANA, Air France, Air Tahiti Nui, +15 more

ANA, Air France, +16 more

Sunday

ANA, Air France, Air Tahiti Nui, +16 more

ANA, Air France, +17 more

See more direct flights
See more direct flights

Book cheap flights from Seattle to Denver

Cheapest flights to Denver from Seattle found in 2024

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Seattle to Denver found on KAYAK in the last 72 hours.
28/5Tue
directDelta
2h 48mSEA-DEN
£55
1/7Mon
directFrontier
2h 43mSEA-DEN
£66
12/5Sun
1 stopAlaska Airlines
6h 47mSEA-DEN
£78
3/5Fri
1 stopUnited Airlines
6h 57mSEA-DEN
£101
2/5Thu
1 stopDelta
5h 00mSEA-DEN
£113
3/4Wed
directDelta
2h 39mSEA-DEN
£118
6/7Sat
1 stopDelta
4h 39mSEA-DEN
£133
30/4Tue
2 stopsAlaska Airlines
7h 47mSEA-DEN
£166
27/4Sat
2 stopsAlaska Airlines
9h 28mSEA-DEN
£174
4/5Sat
2 stopsUnited Airlines
15h 08mSEA-DEN
£181

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Last minute flights from Seattle to Denver

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Seattle to Denver that are departing in the next 10 days.
3/4Wed
directDelta
2h 39mSEA-DEN
4/4Thu
directDelta
3h 09mDEN-SEA
£219
3/4Wed
directDelta
2h 39mSEA-DEN
4/4Thu
multi-stopDelta
6h 47mDEN-SEA
£230
2/4Tue
directDelta
2h 39mSEA-DEN
4/4Thu
directDelta
3h 01mDEN-SEA
£235
1/4Mon
multi-stopDelta
4h 35mSEA-DEN
4/4Thu
directDelta
3h 09mDEN-SEA
£238
3/4Wed
directDelta
2h 52mSEA-DEN
3/4Wed
directDelta
2h 57mDEN-SEA
£243
1/4Mon
multi-stopDelta
7h 31mSEA-DEN
4/4Thu
multi-stopDelta
7h 58mDEN-SEA
£250
31/3Sun
directDelta
2h 39mSEA-DEN
4/4Thu
directDelta
3h 09mDEN-SEA
£251
31/3Sun
multi-stopDelta
5h 07mSEA-DEN
2/4Tue
directDelta
3h 01mDEN-SEA
£254
1/4Mon
multi-stopAlaska Airlines
4h 35mSEA-DEN
4/4Thu
multi-stopAlaska Airlines
14h 33mDEN-SEA
£621
3/4Wed
multi-stopAlaska Airlines
4h 12mSEA-DEN
5/4Fri
multi-stopAlaska Airlines
10h 23mDEN-SEA
£661

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Seattle - Denver Flights

Departure:

Seattle (SEA)United States

Destination:

Denver (DEN)United States

Return flight deals:

Denver - Seattle

Cabin classes:

£154

Browse origins:

  • Flights » 
  • Seattle

Browse destinations:

  • Flights » 
  • Worldwide » 
  • Denver