SEA - ASE

$215 Find Cheap Flights from Seattle to Aspen - Compare and Save

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 Aspen departing on 8/10. 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
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$429
Typical prices: $471-$824
United Airlines
Mon 8/10Thu 8/20
SEA - ASE • 1 stop
Cheapest one-way
$215
United Airlines
Mon 8/10
SEA - ASE • 1 stop
Top airlines
Cheapest • from $429 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
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Nonstop flights
Not available
There are currently no direct flights between Seattle and Aspen. You'll need at least 1 connection.
Insights
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Insights
Top layover airports
Cheapest • Avg $388 (round-trip)
Shortest trip • 4h 50m (one-way)
Insights
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Insights
When to travel
Cheapest • 43% price drop
Most popular
Good to know
Good to know
+1
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We hope you love your trip to Aspen!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Seattle to Aspen (SEA-ASE)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Aspen 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 for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Aspen

Mon, Aug 10 - Thu, Aug 20
United Airlines Logo
5:00 am - 10:51 am
SEA
-
ASE
4h 51m
1 stop
United Airlines Logo
4:45 pm - 11:04 pm
ASE
-
SEA
7h 19m
1 stop
$429United Airlines
Tue, Aug 18 - Tue, Aug 25
United Airlines Logo
5:00 am - 10:44 am
SEA
-
ASE
4h 44m
1 stop
United Airlines Logo
9:15 am - 4:14 pm
ASE
-
SEA
7h 59m
2 stops
$434United Airlines
Mon, Aug 3 - Thu, Aug 6
United Airlines Logo
5:00 am - 10:51 am
SEA
-
ASE
4h 51m
1 stop
United Airlines Logo
5:10 pm - 11:10 pm
ASE
-
SEA
7h 00m
1 stop
$452United Airlines
Tue, Jul 28 - Tue, Aug 4
United Airlines Logo
2:33 pm - 9:26 pm
SEA
-
ASE
5h 53m
1 stop
United Airlines Logo
5:10 pm - 9:10 pm
ASE
-
SEA
5h 00m
1 stop
$472United Airlines
Sat, Aug 15 - Sat, Aug 22
United Airlines Logo
1:16 pm - 7:52 pm
SEA
-
ASE
5h 36m
1 stop
United Airlines Logo
8:05 am - 3:29 pm
ASE
-
SEA
8h 24m
1 stop
$475United Airlines
Sat, Aug 15 - Sat, Aug 22
United Airlines Logo
1:16 pm - 7:52 pm
SEA
-
ASE
5h 36m
1 stop
United Airlines Logo
1:15 pm - 8:43 pm
ASE
-
SEA
8h 28m
2 stops
$480United Airlines
Thu, Jul 16 - Mon, Jul 20
American Airlines Logo
7:00 am - 3:59 pm
SEA
-
ASE
7h 59m
1 stop
American Airlines Logo
4:30 pm - 9:45 pm
ASE
-
SEA
6h 15m
1 stop
$499American Airlines
Thu, Jul 16 - Mon, Jul 20
United Airlines Logo
5:00 am - 10:51 am
SEA
-
ASE
4h 51m
1 stop
United Airlines Logo
6:12 pm - 11:10 pm
ASE
-
SEA
5h 58m
1 stop
$509United Airlines
Thu, Sep 17 - Tue, Sep 22
Delta Logo
12:36 pm - 8:20 pm
SEA
-
ASE
6h 44m
1 stop
Delta Logo
12:02 pm - 8:42 pm
ASE
-
SEA
9h 40m
1 stop
$510Delta
Sun, Sep 13 - Fri, Sep 18
United Airlines Logo
8:40 am - 3:08 pm
SEA
-
ASE
5h 28m
1 stop
United Airlines Logo
9:15 am - 7:32 pm
ASE
-
SEA
11h 17m
2 stops
$514United Airlines
Booking Insights

KAYAK's insights & trends for Seattle to Aspen flights

Get data-powered insights and trends into flights from Seattle to Aspen 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 Aspen?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Aspen, 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 Aspen is November, where tickets cost $308 (return) on average. On the other hand, the most expensive months are June and October, where the average cost of round-trip tickets is $812 and $664 respectively.

Good to know

Low seasonApril
Cheapest flight$215
Best time to beat the crowds with an average 17% drop in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from Seattle to Aspen

When to book flights from Seattle to Aspen

Are your dates flexible? Find out the best times to travel from Seattle to Aspen based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips 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 Aspen

  • What is the cheapest flight from Seattle to Aspen?

    In the last 5 days, the lowest price for a flight from Seattle to Aspen was $215 for a one-way ticket and $429 for a round-trip.

  • Do I need a passport to fly between Seattle and Aspen?

    No

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

    Seattle airport is called Seattle/Tacoma Intl and the only airport in Aspen is Aspen Pitkin County.

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

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Seattle to Aspen?

    Star Alliance is the only airline alliance operating flights between Seattle and Aspen.

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

    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 Aspen.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Aspen 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 Aspen?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Aspen with an airline and back to Seattle with another airline. Booking your flights between Seattle and ASE can sometimes prove cheaper using this method.

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

    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 Aspen from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Seattle to Aspen

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Aspen. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seattle to Aspen? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9927 reviews
8.1Crew
7.3Comfort
7.7Boarding
7.1Entertainment
6.7Food
Airline reviews

Our flight was delayed several Times due to mechanical issues. Although I understand this may happen at times, it was very inconvenient and we had to book a hotel for an overnight stay. We were traveling with my 3-yo grandson and waiting at the airport from noon until 6:30pm with no reassurance that our next rescheduled flight would depart, we had to decide what’s best for him. A day later, I found out that I may be able to demand compensation if my flight is delayed more than 4 hours. I will hav to read the fine print next time.

4.0 OkayOlivia, Jun 2026
SEA - SFO
Read more United Airlines reviews

Our flight was delayed several Times due to mechanical issues. Although I understand this may happen at times, it was very inconvenient and we had to book a hotel for an overnight stay. We were traveling with my 3-yo grandson and waiting at the airport from noon until 6:30pm with no reassurance that our next rescheduled flight would depart, we had to decide what’s best for him. A day later, I found out that I may be able to demand compensation if my flight is delayed more than 4 hours. I will hav to read the fine print next time.

It was a short flight so I was expecting too much

United needs to step up their game. Delayed flight leaving Seattle, San Francisco. Older aircraft, not very comfortable.

Had to cancel first flight because Airporter Bus took over 3 hrs to get to airport which resulted in an extra $378 dollar fare . Is there anyway I can be reimbursed for initial fare since it was not my fault? Sent from my iPhone EJ Ledet

Delayed by 2.5hrs any longer and they would’ve had to honour their own policy for breaking their own rules and regs. Not cool, especially when I have an infant child that needs to stay on a routine and they get schedules.

They had three choices for snacks - but you could only have one - and they ran out of the dark chocolate before they made it all the way down the aisle... Packed flight - limited service.

They opened my checked bag and even though my lock was tsa approved, they loose my lock and left my bag just like that. Incompetent people, very upset about it. I’ll try to avoid traveling with united

We fly to Ecuador frequently. Checking in is usually a hassle because most United agents take some time before they can verify that my passport doesn't require a visa to Ecuador. This time the process was even longer due to the cyber attack. But she was really nice to us. So glad we brought plenty of snacks to supplement the 3 flights from SEA to GYE.

We had selected seats in the app that were a 2x2 format in the middle of the plane. Our seats when we got on the plane had been moved to the back rows in a 3x1 format. What’s the point of paying up for tickets that allow seat selection if the airline will just change them?

The new Airbus A231neo has neat tech but the economy seats are so tight together that I always had my shoulders against one passenger or the other. I was very miffed that Basic Economy REQUIRES check-in of bags other than your personal carry-on; if you want to offer low-cost airline prices and then add services for a fee, just let me carry on my duffel. Hell, I could have put my carry on IN the duffel and called it a day but the gate agent would not let me; I ended up paying $40 for the risk of losing my bag. Not the worst flight, but far from the best.

Everything you need to know for your flight from Seattle to Aspen

Information on your arrival and departure airports