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Cheap flights from Seattle to Denver from C$ 100

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Denver departing on 7/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

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Find the cheapest flights from Seattle to Denver

Cheap round-trip flights

These are some of the best round-trip flight deals from Seattle to Denver that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Seattle to Denver.

Cheap last-minute flights

Planning a quick getaway from Seattle to Denver? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Denver, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Seattle to Denver

Find recent round-trip train or bus tickets from Seattle to Denver.

All round-trip flight deals to Denver

The cheapest plane tickets to Denver found on KAYAK recently.
8:20 p.m. - 7:51 a.m.SEA-DEN
10h 31m1 stop
12:10 p.m. - 2:19 p.m.DEN-SEA
3h 09mdirect
C$ 147Frontier
Find Deal
Mon, 6 Jan - Fri, 10 Jan
1:36 p.m. - 5:25 p.m.SEA-DEN
2h 49mdirect
9:57 a.m. - 12:02 p.m.DEN-SEA
3h 05mdirect
C$ 151Frontier
Find Deal
Wed, 19 Feb - Sun, 23 Feb
3:15 p.m. - 6:57 p.m.SEA-DEN
2h 42mdirect
1:10 p.m. - 3:23 p.m.DEN-SEA
3h 13mdirect
C$ 199Delta
Find Deal
Mon, 3 Feb - Sun, 9 Feb
12:20 p.m. - 4:00 p.m.SEA-DEN
2h 40mdirect
3:50 p.m. - 5:50 p.m.DEN-SEA
3h 00mdirect
C$ 200Southwest
Find Deal
Thu, 9 Jan - Mon, 13 Jan
9:00 a.m. - 12:43 p.m.SEA-DEN
2h 43mdirect
6:00 a.m. - 11:20 a.m.DEN-SEA
6h 20m1 stop
C$ 206United Airlines
Find Deal
Wed, 8 Jan - Sun, 12 Jan
3:15 p.m. - 6:57 p.m.SEA-DEN
2h 42mdirect
6:25 a.m. - 8:39 a.m.DEN-SEA
3h 14mdirect
C$ 224Delta
Find Deal
Sat, 1 Mar - Tue, 4 Mar
9:20 a.m. - 6:20 p.m.SEA-DEN
8h 00m1 stop
9:04 p.m. - 11:09 p.m.DEN-SEA
3h 05mdirect
C$ 240United Airlines
Find Deal
Tue, 21 Jan - Fri, 24 Jan
3:21 p.m. - 6:59 p.m.SEA-DEN
2h 38mdirect
7:00 a.m. - 9:16 a.m.DEN-SEA
3h 16mdirect
C$ 246Alaska Airlines
Find Deal
Thu, 27 Feb - Tue, 4 Mar
6:59 p.m. - 10:36 p.m.SEA-DEN
2h 37mdirect
7:00 a.m. - 9:19 a.m.DEN-SEA
3h 19mdirect
C$ 253Alaska Airlines
Find Deal
Sat, 25 Jan - Wed, 29 Jan
5:35 a.m. - 4:20 p.m.SEA-DEN
9h 45m2 stops
9:10 a.m. - 11:10 a.m.DEN-SEA
3h 00mdirect
C$ 304Southwest
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Sat, 11 Jan - Sat, 18 Jan
8:15 a.m. - 12:10 p.m.SEA-DEN
2h 55mdirect
C$ 100Delta
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Tue, 7 Jan
8:50 a.m. - 12:36 p.m.SEA-DEN
2h 46mdirect
C$ 113United Airlines
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Tue, 25 Feb
8:05 a.m. - 1:54 p.m.SEA-DEN
4h 49m1 stop
C$ 126Alaska Airlines
Find Deal
Wed, 26 Feb
12:00 p.m. - 3:49 p.m.SEA-DEN
2h 49mdirect
C$ 127Alaska Airlines
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Sat, 25 Jan
7:55 p.m. - 11:42 p.m.SEA-DEN
2h 47mdirect
C$ 129Delta
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Mon, 20 Jan
7:55 a.m. - 11:42 a.m.SEA-DEN
2h 47mdirect
C$ 134Alaska Airlines
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Mon, 17 Mar
2:50 p.m. - 10:45 p.m.SEA-DEN
6h 55m1 stop
C$ 140United Airlines
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Tue, 18 Mar
5:30 a.m. - 11:37 a.m.SEA-DEN
5h 07m1 stop
C$ 141Delta
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Sat, 1 Feb
12:25 p.m. - 8:45 p.m.SEA-DEN
7h 20m2 stops
C$ 199Southwest
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Tue, 4 Mar
5:55 a.m. - 3:50 p.m.SEA-DEN
8h 55m2 stops
C$ 204Southwest
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Thu, 20 Feb
7:45 p.m. - 11:29 p.m.SEA-DEN
2h 44mdirect
7:00 a.m. - 9:19 a.m.DEN-SEA
3h 19mdirect
C$ 424Alaska Airlines
Find Deal
Mon, 23 Dec - Tue, 7 Jan
7:45 p.m. - 11:29 p.m.SEA-DEN
2h 44mdirect
5:10 p.m. - 7:19 p.m.DEN-SEA
3h 09mdirect
C$ 510Alaska Airlines
Find Deal
Fri, 20 Dec - Wed, 25 Dec
7:45 p.m. - 11:29 p.m.SEA-DEN
2h 44mdirect
6:00 a.m. - 8:14 a.m.DEN-SEA
3h 14mdirect
C$ 538Alaska Airlines
Find Deal
Sat, 21 Dec - Thu, 26 Dec
7:45 p.m. - 11:29 p.m.SEA-DEN
2h 44mdirect
11:53 a.m. - 5:33 p.m.DEN-SEA
6h 40m1 stop
C$ 551Alaska Airlines
Find Deal
Fri, 20 Dec - Wed, 25 Dec
1:05 p.m. - 8:05 p.m.SEA-DEN
6h 00m1 stop
8:30 a.m. - 3:10 p.m.DEN-SEA
7h 40m2 stops
C$ 594Southwest
Find Deal
Mon, 23 Dec - Sun, 12 Jan
4:45 p.m. - 12:05 a.m.SEA-DEN
6h 20m1 stop
8:30 a.m. - 3:10 p.m.DEN-SEA
7h 40m2 stops
C$ 623Southwest
Find Deal
Sun, 22 Dec - Sun, 12 Jan
5:05 p.m. - 10:58 p.m.SEA-DEN
4h 53m1 stop
5:30 a.m. - 9:45 a.m.DEN-SEA
5h 15m1 stop
C$ 651Delta
Find Deal
Sun, 22 Dec - Fri, 27 Dec
5:05 p.m. - 11:01 p.m.SEA-DEN
4h 56m1 stop
8:00 a.m. - 12:44 p.m.DEN-SEA
5h 44m1 stop
C$ 680Delta
Find Deal
Thu, 19 Dec - Sun, 22 Dec
3:11 p.m. - 12:35 a.m.SEA-DEN
8h 24m1 stop
4:07 p.m. - 11:50 p.m.DEN-SEA
8h 43m2 stops
C$ 687United Airlines
Find Deal
Thu, 19 Dec - Mon, 23 Dec
2:00 p.m. - 11:55 p.m.SEA-DEN
8h 55m1 stop
7:50 a.m. - 9:59 a.m.DEN-SEA
3h 09mdirect
C$ 696United Airlines
Find Deal
Mon, 23 Dec - Tue, 7 Jan
1:36 p.m. - 5:25 p.m.SEA-DEN
2h 49mdirect
9:57 a.m. - 12:02 p.m.DEN-SEA
3h 05mdirect
C$ 151Frontier
Find Deal
Wed, 19 Feb - Sun, 23 Feb
1:36 p.m. - 5:25 p.m.SEA-DEN
2h 49mdirect
9:57 a.m. - 12:02 p.m.DEN-SEA
3h 05mdirect
C$ 166Frontier
Find Deal
Wed, 19 Feb - Sun, 23 Feb
7:55 p.m. - 11:42 p.m.SEA-DEN
2h 47mdirect
1:10 p.m. - 3:23 p.m.DEN-SEA
3h 13mdirect
C$ 199Delta
Find Deal
Mon, 3 Feb - Fri, 7 Feb
3:15 p.m. - 6:57 p.m.SEA-DEN
2h 42mdirect
6:25 a.m. - 8:39 a.m.DEN-SEA
3h 14mdirect
C$ 211Delta
Find Deal
Sat, 8 Feb - Sat, 15 Feb
1:45 p.m. - 5:20 p.m.SEA-DEN
2h 35mdirect
9:45 p.m. - 11:45 p.m.DEN-SEA
3h 00mdirect
C$ 226Southwest
Find Deal
Sat, 1 Mar - Sat, 1 Mar
7:30 a.m. - 11:15 a.m.SEA-DEN
2h 45mdirect
9:55 p.m. - 11:55 p.m.DEN-SEA
3h 00mdirect
C$ 240Southwest
Find Deal
Tue, 11 Feb - Tue, 18 Feb
3:21 p.m. - 6:59 p.m.SEA-DEN
2h 38mdirect
7:00 a.m. - 9:16 a.m.DEN-SEA
3h 16mdirect
C$ 246Alaska Airlines
Find Deal
Thu, 27 Feb - Tue, 4 Mar
6:59 p.m. - 10:36 p.m.SEA-DEN
2h 37mdirect
4:45 p.m. - 6:50 p.m.DEN-SEA
3h 05mdirect
C$ 260Alaska Airlines
Find Deal
Fri, 24 Jan - Sat, 1 Feb
5:00 a.m. - 8:42 a.m.SEA-DEN
2h 42mdirect
8:44 p.m. - 10:44 p.m.DEN-SEA
3h 00mdirect
C$ 267United Airlines
Find Deal
Sat, 3 May - Fri, 9 May
9:00 a.m. - 12:43 p.m.SEA-DEN
2h 43mdirect
7:05 p.m. - 9:11 p.m.DEN-SEA
3h 06mdirect
C$ 354United Airlines
Find Deal
Sun, 26 Jan - Sun, 26 Jan

Frontier flights from Seattle to Denver

Our best Frontier deals on Seattle to Denver flight tickets
Frontier
6 Jan
SEA8:20 p.m.Seattle/Tacoma Intl
10h 31m
1 stop
DEN7:51 a.m.Denver Intl
10 Jan
DEN12:10 p.m.Denver Intl
3h 09m
SEA2:19 p.m.Seattle/Tacoma Intl
Frontier
19 Feb
SEA1:36 p.m.Seattle/Tacoma Intl
2h 49m
DEN5:25 p.m.Denver Intl
23 Feb
DEN9:57 a.m.Denver Intl
3h 05m
SEA12:02 p.m.Seattle/Tacoma Intl
Frontier
6 Jan
SEA8:20 p.m.Seattle/Tacoma Intl
10h 31m
1 stop
DEN7:51 a.m.Denver Intl
8 Jan
DEN10:29 p.m.Denver Intl
12h 18m
1 stop
SEA9:47 a.m.Seattle/Tacoma Intl

Delta flights from Seattle to Denver

Our best Delta deals on Seattle to Denver flight tickets
Delta
3 Feb
SEA3:15 p.m.Seattle/Tacoma Intl
2h 42m
DEN6:57 p.m.Denver Intl
9 Feb
DEN1:10 p.m.Denver Intl
3h 13m
SEA3:23 p.m.Seattle/Tacoma Intl
Delta
1 Mar
SEA3:15 p.m.Seattle/Tacoma Intl
2h 42m
DEN6:57 p.m.Denver Intl
4 Mar
DEN6:25 a.m.Denver Intl
3h 14m
SEA8:39 a.m.Seattle/Tacoma Intl
Delta
17 Jan
SEA7:55 p.m.Seattle/Tacoma Intl
2h 47m
DEN11:42 p.m.Denver Intl
21 Jan
DEN7:50 p.m.Denver Intl
3h 17m
SEA10:07 p.m.Seattle/Tacoma Intl

See travel insights to Denver from

How to get the cheapest flight ticket from Seattle to Denver

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Seattle and Denver?

What is the cheapest month to fly to Denver?

In general, January is the cheapest month to fly from Seattle to Denver. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 211. If you aren’t able to travel during the month of January, then book flights to Denver from Seattle during March instead. Flights to Denver in March, while not as cheap as those in January, still average around C$ 211.

What is the cheapest day to depart on your flight to Denver?

The cheapest day to depart from Seattle to Denver is on a Wednesday. Travellers who choose to depart for Denver on a Wednesday will often find tickets for as low as C$ 160. On the other hand, Sunday is the most expensive day to depart from Seattle because it is more convenient for both business and leisure travellers. As a result, prices tend to be around C$ 293.

What is the cheapest time of day to depart on your flight to Denver?

Our most recent data shows that the best time of day to fly to Denver is in the evening. Flights from Seattle to Denver during this time can be as low as C$ 181. Try not to purchase tickets at noon because they tend to be around C$ 301. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Seattle/Tacoma Intl to Denver Intl flight route?

Fly from Seattle/Tacoma Intl to Denver Intl for the best Seattle/Tacoma Intl - Denver Intl flight prices

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

The best time to book a flight to Denver from Seattle is 56 days out, which is when prices tend to be around C$ 249. Keep in mind that you might be able to find cheaper flights to Denver at any time. In fact, our users found flights for as low as C$ 239 in the past 72 hours.

What cabin class options are available on Seattle/Tacoma Intl to Denver Intl flights?

There are 4 cabin classes available to choose from on Seattle/Tacoma Intl to Denver Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Seattle to Denver flights?

You could potentially save up to 25% on your flight if you consider stops on a Seattle to Denver flight.

How have Seattle to Denver flight prices changed over time?

As of December 2024, prices for Seattle to Denver flights are approximately 42% more expensive when compared to flights at the same time last year.

When to book flights from Seattle to Denver

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Denver according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Denver (SEA to DEN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Denver

Best price found

C$ 100

Fastest flight time

2h 35m

Direct flights

Every day

Airports in Denver

1 airport
The best one-way flight to Denver from Seattle in the past 72 hours is C$ 100. The best round-trip flight deal from Seattle to Denver found on momondo in the last 72 hours is C$ 147.
The fastest flight from Seattle to Denver takes 2h 35m
Direct flights go from Seattle to Denver every day.
There is 1 airport near Denver: Denver Intl (DEN)

  • How far is Seattle/Tacoma Intl to Denver Intl by plane?

    A flight from Seattle/Tacoma Intl to Denver Intl will travel around 1640.8 km. By plane, this route typically takes 2h 35m.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Denver Intl Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Denver Intl Airport are updated daily.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Denver Intl Airport?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Denver Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Denver Intl Airport.

  • What documentation or ID do you need to fly to Denver Intl Airport?

    The travel and health documents required for your trip to Denver Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Denver Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Seattle to Denver?

  • What is the most popular airline from Seattle to Denver?


Best airlines flying from Seattle to Denver

Compare and see reviews for airlines that fly from Seattle to Denver with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom C$ 78Free CancellationRating
6.1
3,479 reviews
Search Frontier flights
DeltaPriceFrom C$ 112Free CancellationRating
8.0
8,604 reviews
Search Delta flights
SouthwestPriceFrom C$ 188Free CancellationRating
8.1
4,848 reviews
Search Southwest flights
Alaska AirlinesPriceFrom C$ 191Free CancellationRating
8.0
9,552 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom C$ 197Free CancellationRating
7.4
9,059 reviews
Search United Airlines flights
  • Southwest Flights From Seattle to Denver

    Southwest flies from Seattle to Denver around 9 times per week, with 4,848 momondo users rating the airline 8.1/10. The cheapest Southwest deal from Seattle to Denver in the last 72 hours was C$ 132 (round-trip), much lower than the average airfare cost of C$ 173 for Southwest flights on this route.

  • Delta Flights From Seattle to Denver

    Delta (8.0/10 from 8,604 reviews) operates around 4 flights from Seattle to Denver in any given week. The average Delta airfare for this route is around C$ 168, with deals from around C$ 78 rare but found on momondo. Referenced prices are for round-trip Seattle to Denver flight searches in the last 72 hours.


Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Denver?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seattle to Denver for you.

Can I find flights from Seattle to Denver with flexible booking policies on momondo?

All flight searches from Seattle to Denver on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Seattle to Denver?

Once you have performed a search for Seattle to Denver flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Seattle to Denver right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Seattle to Denver now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Denver and let you know when they change.


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