HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Seattle

$47+ Cheap flights from Aurora, CO to Seattle (SEA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/10. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SEA
Jan 9 — Jan 161
Fri 1/9
Fri 1/16
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Aurora to Seattle with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Aurora to Seattle/Tacoma Intl are usually found in January or February, booked 68 days in advance, depart on a Friday or Thursday and return on a Friday

Cheap flight deals from Aurora to Seattle

Cheapest flights from Aurora to Seattle
Explore the most affordable flight options available from Aurora to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 10, 2025.

This Priceline deal was found by Cheapflights users on 12/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/236:35 amDEN - SEA
1 stop8h 19mFrontier
Tue 1/61:00 pmSEA - DEN
Nonstop2h 53mFrontier
Deal found 12/9$111
This Cheapflightsfares deal was found by Cheapflights users on 12/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/227:00 amDEN - SEA
1 stop28h 11mFrontier
Sat 1/32:54 pmSEA - DEN
Nonstop2h 49mFrontier
Deal found 12/9$125
This Cheapflightsfares deal was found by Cheapflights users on 12/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:35 amDEN - SEA
1 stop8h 19mFrontier
Sat 1/32:54 pmSEA - DEN
Nonstop2h 49mFrontier
Deal found 12/8$134
This CheapOair deal was found by Cheapflights users on 12/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/217:00 amDEN - SEA
1 stop28h 11mFrontier
Mon 1/52:54 pmSEA - DEN
Nonstop2h 49mFrontier
Deal found 12/7$137
This Priceline deal was found by Cheapflights users on 12/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/226:35 amDEN - SEA
1 stop8h 19mFrontier
Thu 1/812:26 pmSEA - DEN
Nonstop2h 51mFrontier
Deal found 12/9$141
This Cheapflightsfares deal was found by Cheapflights users on 12/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:35 amDEN - SEA
1 stop8h 19mFrontier
Mon 1/52:54 pmSEA - DEN
Nonstop2h 49mFrontier
Deal found 12/8$145
This Expedia deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/226:35 amDEN - SEA
1 stop8h 19mFrontier
Wed 12/311:25 pmSEA - DEN
Nonstop2h 53mFrontier
Deal found 12/10$155
This Super.com deal was found by Cheapflights users on 12/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2010:00 amDEN - SEA
1 stop4h 54mFrontier
Sat 1/32:54 pmSEA - DEN
Nonstop2h 49mFrontier
Deal found 12/8$156
This Kiwi.com deal was found by Cheapflights users on 12/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:02 amDEN - SEA
Nonstop3h 08mMultiple Airlines
Tue 1/61:00 pmSEA - DEN
Nonstop2h 53mMultiple Airlines
Deal found 12/8$158
This Super.com deal was found by Cheapflights users on 12/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/139:42 amDEN - SEA
Nonstop3h 11mFrontier
Sun 12/1412:48 pmSEA - DEN
Nonstop2h 51mFrontier
Deal found 12/7$159

Find flight deals from Aurora to Seattle

Keep the following information in mind while searching for Aurora to Seattle flight deals. Data was last updated December 10, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$57
(Kiwi.com)

One-way from

$47
(Trip.com)

Popular in

July

Cheapest in

January

Average price

$206
Provider with most accurate pricing for Denver Intl-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Seattle/Tacoma Intl flights.
Search Deals
From Aurora to Seattle/Tacoma Intl
Search Deals
One-way flight from Aurora to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($23 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Aurora to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 10, 2025.
Use the filters below to find and compare flights from Aurora to Seattle that are best for you.

Fly from

Aurora

Fly to

Seattle

Route

Depart

Return

Price

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Thu 1/8

7:00 am-9:11 am

Nonstop3h 11m

Seattle/Tacoma Intl

Mon 1/12

7:54 pm-11:35 pm

Nonstop2h 41m

$97

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Wed 1/7

4:20 pm-6:26 pm

Nonstop3h 06m

Seattle/Tacoma Intl

Wed 1/14

12:25 pm-4:11 pm

Nonstop2h 46m

$97

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Sat 1/10

6:29 am-8:40 am

Nonstop3h 11m

Seattle/Tacoma Intl

Sun 1/18

5:25 am-11:54 am

1 stop5h 29m

$107

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Mon 2/2

11:49 am-6:43 pm

1 stop7h 54m

Seattle/Tacoma Intl

Mon 2/9

7:54 pm-11:35 pm

Nonstop2h 41m

$107

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Thu 1/22

7:00 am-12:33 pm

1 stop6h 33m

Seattle/Tacoma Intl

Sun 1/25

8:25 am-12:27 pm

Nonstop3h 02m

$107

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Fri 3/6

6:20 pm-12:09 am

1 stop6h 49m

Seattle/Tacoma Intl

Sun 3/8

7:45 pm-11:30 pm

Nonstop2h 45m

$107

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Fri 1/9

1:37 pm-3:46 pm

Nonstop3h 09m

Seattle/Tacoma Intl

Mon 1/12

7:54 pm-11:35 pm

Nonstop2h 41m

$117

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Thu 1/15

6:29 am-8:40 am

Nonstop3h 11m

Seattle/Tacoma Intl

Sun 1/18

7:40 pm-11:25 pm

Nonstop2h 45m

$117

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Wed 1/7

4:10 pm-11:22 pm

1 stop8h 12m

Seattle/Tacoma Intl

Wed 1/14

5:25 am-11:54 am

1 stop5h 29m

$117

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Fri 1/23

11:49 am-6:43 pm

1 stop7h 54m

Seattle/Tacoma Intl

Mon 1/26

8:55 am-12:38 pm

Nonstop2h 43m

$127

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 24 results
1
2
3

Best time to book a flight from Aurora to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Aurora with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Aurora to Seattle

How far ahead should I book a flight from Aurora to Seattle?

Use this chart to determine the optimal time to book a round-trip flight from Aurora to Seattle. Price data was last updated on December 5, 2025.

To ensure you get the cheapest price possible for a flight from Aurora to Seattle, you should look to book at least 68 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Aurora to Seattle?

Currently, February is the cheapest month in which you can book a flight from Aurora to Seattle (average of $49). Flying from Aurora to Seattle in July is currently the most expensive (average of $118). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from 9UR to SEA?

Find hourly flight availability from Aurora to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 10, 2025.

One of the essential ways to save on airfare from Aurora to Seattle is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 25% on airfare.

What is the cheapest day to fly from Aurora to Seattle?

Use this chart to determine the cheapest time to fly round-trip from Aurora to Seattle. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Aurora to Seattle flight should consider departing on Friday mornings when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Aurora to Seattle

Explore weekly flight availability from Aurora to Seattle. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated December 10, 2025.

The most flights from 9UR to SEA are scheduled on a Monday (37 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (14 on average).

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated December 10, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Delta, and Hawaiian Airlines from Aurora to Seattle to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,427 reviews

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
Alaska Airlines
8.0
Very good
11,427 reviews
Alaska Airlines
8.0
Very good
11,427 reviews

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
Delta
7.9
Good
8,009 reviews
Alaska Airlines
8.0
Very good
11,427 reviews

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
Hawaiian Airlines
7.8
Good
2,818 reviews
Alaska Airlines
8.0
Very good
11,427 reviews

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
United Airlines
7.4
Good
9,095 reviews
Alaska Airlines
8.0
Very good
11,427 reviews

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
Frontier
5.8
Fair
3,084 reviews
Alaska Airlines
8.0
Very good
11,427 reviews

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.

Related info for your journey

Find useful and relevant information for your journey from Aurora to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Seattle from Aurora?

    If you book a flight to Seattle from Aurora, you will be flying to Seattle/Tacoma Intl, which is the city’s only airport. Seattle/Tacoma Intl (SEA) is located 11.4 mi from the center of Seattle. There are 26 flights from Aurora to Seattle/Tacoma Intl per day from 7 different airlines.

  • How popular is this Aurora to Seattle flight route?

    This flight path from Aurora to Seattle/Tacoma Intl was viewed by 165 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Aurora to Seattle?

    For as low as $97, Alaska Airlines can have you in Seattle from Aurora in 3h 06m. There are 1022 mi between Aurora and Seattle. All flights are typically nonstop.

  • What are the cheapest airlines to fly from Aurora to Seattle one-way?

    $44 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Southwest and Delta, with prices starting from $70 and $77, respectively.

  • What are the most reliable airlines from Aurora to Seattle?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Aurora to Seattle on time: Japan Airlines (92%), Qatar Airways (90%), ANA (90%).

  • What are the cheapest flights from Aurora to Seattle?

    While on average a flight from Aurora to Seattle is generally $769, our data shows the cheapest flight currently is $51. When looking at the most popular route, (Denver Intl - Seattle/Tacoma Intl), you can expect to pay $58 for that flight.

  • Can I find deals for flights from Aurora to Seattle that include hotel bookings?

    Yes. In addition to deals on Aurora to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Aurora to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Aurora to Seattle.

  • Can I find deals for business class flights from Aurora to Seattle?

    Yes. Cheapflights offers flight deals from Aurora to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Aurora to Seattle?

    Currently, February is the cheapest month in which you can book a flight from Aurora to Seattle (average of $49). Flying from Aurora to Seattle in July is currently the most expensive (average of $118). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
SeaTac
Lakewood
Olympia
Ocean Shores
Edmonds
Lynnwood
Renton
Puyallup
Kirkland
Tukwila
Kent
Cle Elum
Marysville
Leavenworth
Fife
Aberdeen
Shoreline
Centralia
Federal Way

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Aurora to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
Denver to Seattle flights
Denver to Portland flights
Denver to Spokane flights
Denver to Pasco flights
Colorado Springs to Seattle flights
Denver to Everett flights
Grand Junction to Seattle flights
Durango to Seattle flights
Colorado Springs to Portland flights
Grand Junction to Portland flights
Grand Junction to Spokane flights
Durango to Portland flights
Montrose to Seattle flights
Vail to Seattle flights
Hayden to Portland flights
Denver to Wenatchee flights
Denver to Walla Walla flights
Hayden to Seattle flights
Aspen to Portland flights
Denver to Pullman flights
Colorado Springs to Pasco flights
Aspen to Seattle flights
Vail to Spokane flights
Denver to Bellingham flights
Gunnison to Seattle flights
Grand Junction to Pasco flights
Aspen to Spokane flights
Montrose to Portland flights
Durango to Spokane flights
Colorado Springs to Spokane flights
Montrose to Spokane flights
Gunnison to Portland flights
Aspen to Pasco flights
Denver to Yakima flights
Alamosa to Spokane flights
Grand Junction to Yakima flights
Aspen to Bellingham flights
Grand Junction to Wenatchee flights
Cortez to Portland flights
Colorado Springs to Bellingham flights

Top 7 airlines flying from Aurora to Seattle

Discover the top 7 airlines that operate flights from Aurora to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$58Average$166FlexibilityNo cancel feeOn-time62%
DeltaCheapest$111Average$286FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$111Average$255FlexibilityNo cancel feeOn-time85%
United AirlinesCheapest$135Average$350FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$137Average$310FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$151Average$276FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$186Average$236FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.