S$121 Cheap Flights from Denver to Seattle

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Cheap Flights from Denver to Seattle (DEN-SEA)

Prices were available within the past 7 days and start at S$121 for one-way flights and S$241 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, 25 May - Sun, 26 May
DEN
Denver
SEA
Seattle
S$241 Return, found 3 days ago
S$241
Return
found 3 days ago
Select Delta flight, departing Sat, 25 May from Denver to Seattle, returning Sun, 26 May, priced at S$241 found 3 days ago
Delta
Thu, 16 May - Sun, 19 May
DEN
Denver
SEA
Seattle
S$296 Return, found 5 days ago
S$296
Return
found 5 days ago
Select Delta flight, departing Thu, 16 May from Denver to Seattle, returning Sun, 19 May, priced at S$296 found 5 days ago
Delta
Thu, 16 May - Sun, 19 May
DEN
Denver
SEA
Seattle
S$337 Return, found 5 days ago
S$337
Return
found 5 days ago
Select Delta flight, departing Thu, 16 May from Denver to Seattle, returning Sun, 19 May, priced at S$337 found 5 days ago
Delta
Sat, 25 May - Sun, 26 May
DEN
Denver
SEA
Seattle
S$338 Return, found 3 days ago
S$338
Return
found 3 days ago
Select Delta flight, departing Sat, 25 May from Denver to Seattle, returning Sun, 26 May, priced at S$338 found 3 days ago
Delta
Sat, 25 May - Sun, 26 May
DEN
Denver
SEA
Seattle
S$349 Return, found 3 days ago
S$349
Return
found 3 days ago
Select Delta flight, departing Sat, 25 May from Denver to Seattle, returning Sun, 26 May, priced at S$349 found 3 days ago
United
Thu, 16 May - Sun, 19 May
DEN
Denver
SEA
Seattle
S$352 Return, found 5 days ago
S$352
Return
found 5 days ago
Select United flight, departing Thu, 16 May from Denver to Seattle, returning Sun, 19 May, priced at S$352 found 5 days ago
United
Thu, 16 May - Sun, 19 May
DEN
Denver
SEA
Seattle
S$364 Return, found 5 days ago
S$364
Return
found 5 days ago
Select United flight, departing Thu, 16 May from Denver to Seattle, returning Sun, 19 May, priced at S$364 found 5 days ago
Delta
Sat, 25 May - Sun, 26 May
DEN
Denver
SEA
Seattle
S$390 Return, found 3 days ago
S$390
Return
found 3 days ago
Select Delta flight, departing Sat, 25 May from Denver to Seattle, returning Sun, 26 May, priced at S$390 found 3 days ago
Denver to Seattle route information
Origin airport
Denver Intl.
Destination airport
Seattle - Tacoma Intl.
Return price
S$240
Distance
1635 km

Flights from Denver to Seattle

There are several airlines that operate frequent flights from Denver (DEN) to Seattle (SEA) including

The earliest flight leaves Denver Intl. Airport at 06:00 and arrives at Seattle Tacoma Intl. Airport at 00:04. The last flight of the day departs Denver at 22:50 and arrives at Seattle at 23:59.

The flight distance from Denver to Seattle is about 1654 km, the shortest flight is 02 hours 44 minutes with .

Expedia lets you search across the largest number of airlines and Seattle flights, which means that you’ll be able to find a great flight deal at the perfect travel date and time. Our simple-to-use booking engine makes looking for terrific bargains easy and hassle-free; just enter your travel dates and departure city, and let Expedia do the rest! Adjust your travel dates and explore connecting flights to find an even better deal on your Denver Seattle flight!

Browse through dozens of options and rest assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your Denver to Seattle trip. There’s simply no substitute for great prices suited to your travel needs and backed by excellent customer support.

Combine your Seattle flight with a hotel and/or car rental for a package deal designed to save you even more money! Discover additional savings by booking in advance or find a last minute deal. There are tons of ways to save on your flights from Denver to Seattle with Expedia. Use us as your stop travel destination and have the confidence that you’re getting a bargain!

Frequently asked questions

How much is a flight from Denver Intl. Airport (DEN) to Seattle - Tacoma Intl. Airport (SEA)?
The lowest price advertised for a round-trip flight from Denver Intl. Airport (DEN) to Seattle - Tacoma Intl. Airport (SEA) is S$241. But you better act quick. This price is taken from fares offered within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Denver Intl. Airport (DEN) to SEA?
Every airline has a different set of terms and conditions. If you decide to cancel your trip, visit our Customer Service Portal.
How do I find cheap flights from Denver Airport to Seattle - Tacoma Intl. Airport (SEA) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you’re searching for Denver Intl. Airport (DEN) to Seattle - Tacoma Intl. Airport (SEA) flights, you’ll see a “no change fees” filter for you to select.
How far is the flight from DEN to SEA?
Around 1,650 kilometres separates Denver and SeaTac, so pack some entertainment to keep you busy for a couple of hours. That latest bestseller you’re eager to read will be perfect.
Which airlines fly direct from Denver Airport to Seattle - Tacoma Intl. Airport (SEA)?
Travelling from DIA airport to Sea-Tac Airport is easy when you have a nice range of airlines to choose from. Here are some of the best:

  • United Airlines - (UA) with 147 monthly flights
  • Southwest Airlines - (WN) with 130 monthly flights
  • Alaska Airlines - (AS) with 117 monthly flights
  • Delta Air Lines - (DL) with 91 monthly flights

Are Denver Intl. Airport (DEN) to Seattle - Tacoma Intl. Airport (SEA) flight tickets cheaper when they're purchased at the last minute?
Flight prices fluctuate, so it’s no sure thing. While last-minute flight deals between DIA airport and Seattle - Tacoma Intl. Airport (SEA) are of course possible, it also makes sense to keep an eye on prices well before you fly. In fact, some airlines release their prices up to a year prior to the departure date. Expedia is constantly updating the best bargains around, so check back often and be ready to grab your seat when the fares dip.
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