$39 Cheap Flights from Seattle (SEA) to Denver (DEN)

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Cheap Flights from Seattle to Denver (SEA-DEN)

Prices were available within the past 7 days and start at $39 for one-way flights and $82 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Sat, Apr 27 - Wed, May 8
SEA
Seattle
DEN
Denver
$82 Roundtrip, found 3 hours ago
$82
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Sat, Apr 27 from Seattle to Denver, returning Wed, May 8, priced at $82 found 3 hours ago
Frontier Airlines
Tue, May 21 - Tue, Jun 4
SEA
Seattle
DEN
Denver
$83 Roundtrip, found 5 hours ago
$83
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Tue, May 21 from Seattle to Denver, returning Tue, Jun 4, priced at $83 found 5 hours ago
Frontier Airlines
Sat, Aug 17 - Sat, Aug 24
SEA
Seattle
DEN
Denver
$88 Roundtrip, found 1 hour ago
$88
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Sat, Aug 17 from Seattle to Denver, returning Sat, Aug 24, priced at $88 found 1 hour ago
Frontier Airlines
Sat, May 4 - Mon, May 6
SEA
Seattle
DEN
Denver
$92 Roundtrip, just found
$92
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, May 4 from Seattle to Denver, returning Mon, May 6, priced at $92 just found
Frontier Airlines
Sat, May 4 - Tue, May 21
SEA
Seattle
DEN
Denver
$93 Roundtrip, found 5 hours ago
$93
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Sat, May 4 from Seattle to Denver, returning Tue, May 21, priced at $93 found 5 hours ago
Frontier Airlines
Sat, Apr 27 - Mon, Apr 29
SEA
Seattle
DEN
Denver
$96 Roundtrip, just found
$96
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, Apr 27 from Seattle to Denver, returning Mon, Apr 29, priced at $96 just found
Frontier Airlines
Tue, Apr 30 - Thu, May 9
SEA
Seattle
DEN
Denver
$97 Roundtrip, just found
$97
Roundtrip
just found
Select Frontier Airlines flight, departing Tue, Apr 30 from Seattle to Denver, returning Thu, May 9, priced at $97 just found
Frontier Airlines
Mon, May 20 - Tue, Jun 4
SEA
Seattle
DEN
Denver
$98 Roundtrip, found 5 hours ago
$98
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Mon, May 20 from Seattle to Denver, returning Tue, Jun 4, priced at $98 found 5 hours ago
Frontier Airlines
Sun, May 5 - Mon, May 6
SEA
Seattle
DEN
Denver
$101 Roundtrip, found 9 hours ago
$101
Roundtrip
found 9 hours ago
Select Frontier Airlines flight, departing Sun, May 5 from Seattle to Denver, returning Mon, May 6, priced at $101 found 9 hours ago
Frontier Airlines
Tue, Apr 30 - Thu, May 9
SEA
Seattle
DEN
Denver
$102 Roundtrip, just found
$102
Roundtrip
just found
Select Frontier Airlines flight, departing Tue, Apr 30 from Seattle to Denver, returning Thu, May 9, priced at $102 just found
Flights from Seattle (SEA) to Denver (DEN)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Denver Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, JetBlue Airways, Sun Country Airlines, United
Roundtrip price
$82
Distance
1022 mi
Average flight time
3 hours 38 mins

Seattle to Denver Flights

Whether you’re looking for a grand adventure or just want to get away for a last-minute break, flights from Seattle to Denver offer the perfect respite. Not only does exploring Denver provide the chance to make some magical memories, dip into delectable dishes, and tour the local landmarks, but the cheap airfare means you won’t bust your budget. So no matter whether your ideal itinerary involves flying one way, non-stop, or round trip, you’re bound to find flights that match your schedule on Expedia, and at prices that won’t shock your wallet.

Bagging a cheap flight from Seattle to Denver may mean more dollars to spend on for one-of-a-kind souvenirs when you arrive, but it doesn’t mean you have to skimp on your travel experience, as Expedia offers a sizzling selection of cheap airlines that’ll put you in your happy place on their planes, whether that’s getting lost in a hair-raising airport thriller, dreaming on the passing landscape over a glass of bubbly, or jotting down your vacation bucket list at 38,000 feet. There’s also bound to be plenty of opportunities to snap a few photos of the high life that will make your friends green with envy. After all, enjoying the journey is part of the fun.

With so many affordable flights and so many wonderful adventures awaiting you, there’s no reason to put off booking a fantastic flight from SEA to DEN today. So don’t leave it to the last minute to make your dream trip a reality: pack your bags with your go-to travel accessories, put together your list of must-see attractions and can’t-miss activities, and get ready to broaden your horizons – with Expedia, the wonders of Denver are only a plane trip away. Book your travel arrangements with us today!

If you would like to book flights to Denver more flexibly many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to Denver is $39 now!

Frequently asked questions

How much is a one-way flight from Seattle - Tacoma Intl. Airport (SEA) to DIA airport?
Reserve your tickets with Expedia and you could pick up one-way Seattle flights to Denver from $34. This was the best fare found for this particular route departing within the next three months — an Frontier Airlines flight, setting off from Seattle - Tacoma Intl. Airport (SEA) on May 21 2024 and arriving at DEN. This price was updated on April 17 2024 and has not changed since. Can’t wait to snap up your own bargain? Terrific offers are only a few clicks away.
How long does it take to fly from SEA to DIA airport?
With United Airlines, a direct flight takes roughly 2 hours and 40 minutes. Lock in a seat on the 11:02AM flight from Sea-Tac Airport and land at DEN at 2:42PM. Snag an amazing deal on this and other routes when you book your fare with Expedia.
Is it cheaper to buy a plane ticket from Sea-Tac Airport to Denver Airport last minute?
Booking your journey from Seattle - Tacoma Intl. Airport (SEA) to DEN at the last minute could save you money if you get lucky and find a bargain. However, fares usually don’t drop in price as the departure date nears. If you procrastinate, flights could also be booked up or the best seats taken. If you’d rather not hedge your bets, book well in advance of the date you want to leave. Keep in mind that some of the best deals can be found up to 12 months in advance. If your preferred airline hasn’t released its fares yet, check back regularly as deals are constantly updated on Expedia.
What is the cheapest airline flying from Sea-Tac Airport to DIA airport in the next 90 days?
With ticket prices starting at $34 for a flight from Seattle to Denver, Frontier Airlines is the cheapest airline found on Expedia. This deal is based on airfares found on Expedia with a departure date within the next 90 days and was last updated on April 17 2024 and has not changed since. The flight leaves SEA on May 21 2024 and lands at Denver Airport.
What's the cheapest price for a flight from Seattle - Tacoma Intl. Airport (SEA) to DIA airport next month?
The cheapest ticket for a one-way flight from Seattle to Denver within the next month is $34. If you’re hoping to travel soon, lock in this fare before it’s gone. This price was found after looking through all available flights on Expedia departing within the next 30 days. This fare is for a one-way Frontier Airlines flight leaving SEA on May 14 2024 and touching down at Denver Airport. Pricing info was updated on April 17 2024 and has not changed since.
What airline has the least delays from SEA to Denver Airport?
Take off with Delta Air Lines from Sea-Tac Airport to Denver Intl. Airport (DEN) and you’re more likely to hit the tarmac at the time printed on your plane ticket. This airline clinches first place on this route, with an on-time score of 80%. If you find yourself facing a delay, the free Expedia App will help you stay up to date. Download it onto your device and get immediate trip updates, from flight delays to gate number changes and which carousel to collect your luggage.
Can I find cheap nonstop flights from SEA to DIA airport in the next three months?
Get ready to score a great deal because we’ve discovered a roundtrip nonstop flight with Frontier Airlines within the next 90 days for $73. The price was last updated on April 17 2024 and was found after looking at all available flights on Expedia with departure dates during the next three months. This flight from Seattle to Denver leaves Sea-Tac Airport on May 11 2024 and arrives at DEN. The flight’s return date is May 14 2024.To source nonstop cheap flights from Sea-Tac Airport to Denver Intl. Airport (DEN), use our filters after you press search. Simply click “Nonstop” under “Filter by” on the left-hand side of the page to view the options. Your results will be organized from the lowest price, so you can see the cheapest nonstop fares first. You can also compare prices for surrounding days by clicking “Flexible dates” on the same page.
What airports do you fly into for Denver from Seattle?
With Denver Intl. Airport (DEN), Centennial Airport (APA) and Broomfield, CO (BJC-Rocky Mountain Metropolitan) to select from, making your way from Seattle to Denver is easy. The city’s key hub, Denver Intl. Airport (DEN), is approximately 19 mi east of the downtown area. Besides ticket costs, consider things like the ease of getting from the airport and the distance to your hotel before making your choice. Get your Denver vacation off to a superb start by checking out Coors Field and Empower Field at Mile High.
What are the most popular departure times for flights from Sea-Tac Airport to Denver Airport?
For Alaska Airlines flights jetting out from Seattle - Tacoma Intl. Airport (SEA) to Denver Airport, the most popular period is between 8:00 PM - 9:00 PM. If you want to avoid delays, fly in the morning. This way you’re likely to escape the heavy air traffic that builds up in the afternoon and evening.
Can I change the date of my flight from SEA to Denver Airport?
You can quickly and easily make changes to your Sea-Tac Airport to DEN ticket via the Expedia Trips portal. But before you make any amendments, look over the fare conditions in your itinerary to learn what you can do and if change fees apply. Some carriers have a change fee per person, plus any difference in prices. However, if you booked in the last 24 hours, you may be able to cancel for free and organize new flights. You can also stop by our Customer Service portal for further information and to chat with our Virtual Agent.
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Fort Collins

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$256.21
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