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$55+ 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 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SEA
Dec 2 — Dec 91
Tue 12/2
Tue 12/9
1 adult, Economy
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Cheapflights Tip: The best prices from Aurora to Seattle/Tacoma Intl are usually found in January or February, booked 39 days in advance, depart on a Friday or Thursday and return on a Friday

Find 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 November 2, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 10/31. 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.
Thu 11/2010:29 pmDEN - SEA
1 stop20h 15mFrontier
Sun 11/2312:46 pmSEA - DEN
Nonstop2h 52mFrontier
Deal found 10/31$86
This Kiwi.com deal was found by Cheapflights users on 10/31. 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.
Sat 11/1510:00 amDEN - SEA
Nonstop3h 13mFrontier
Tue 11/181:37 pmSEA - DEN
Nonstop2h 53mFrontier
Deal found 10/31$87
This Cheapflightsfares deal was found by Cheapflights users on 11/1. 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.
Sat 12/136:00 amDEN - SEA
1 stop11h 36mFrontier
Sat 1/32:54 pmSEA - DEN
Nonstop2h 49mFrontier
Deal found 11/1$88
This Alaska Airlines deal was found by Cheapflights users on 10/31. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/36:45 amDEN - SEA
Nonstop3h 13mAlaska Airlines
Tue 12/92:19 pmSEA - DEN
Nonstop2h 44mAlaska Airlines
Deal found 10/31$89
This Kiwi.com deal was found by Cheapflights users on 10/31. 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.
Sun 11/1610:00 amDEN - SEA
Nonstop3h 13mFrontier
Sun 11/162:22 pmSEA - DEN
Nonstop2h 51mFrontier
Deal found 10/31$92
This Frontier deal was found by Cheapflights users on 10/31. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/57:50 amDEN - SEA
1 stop7h 55mFrontier
Sun 12/712:48 pmSEA - DEN
Nonstop2h 51mFrontier
Deal found 10/31$96
This CheapOair deal was found by Cheapflights users on 10/31. 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.
Sat 11/1510:00 amDEN - SEA
Nonstop3h 13mFrontier
Mon 11/177:17 pmSEA - DEN
1 stop15h 50mFrontier
Deal found 10/31$97
This Cheapflightsfares deal was found by Cheapflights users on 10/31. 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.
Fri 11/219:44 amDEN - SEA
Nonstop3h 12mFrontier
Fri 12/512:48 pmSEA - DEN
1 stop4h 44mFrontier
Deal found 10/31$100
This Priceline deal was found by Cheapflights users on 11/1. 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.
Sun 11/166:00 amDEN - SEA
1 stop8h 37mFrontier
Sat 11/221:01 pmSEA - DEN
Nonstop2h 46mFrontier
Deal found 11/1$102
This Frontier deal was found by Cheapflights users on 11/1. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1810:16 amDEN - SEA
Nonstop3h 14mFrontier
Thu 12/251:25 pmSEA - DEN
Nonstop2h 53mFrontier
Deal found 11/1$103

Cheap flight deals from Aurora to Seattle

Keep the following information in mind while searching for Aurora to Seattle flight deals. Data was last updated November 2, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$84
(Kiwi.com)

One-way from

$55
(Cheapflightsfares)

Popular in

June

Cheapest in

January

Average price

$192
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. 12% potential increase in price ($30 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 November 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 November 2, 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

Tue 12/9

8:05 am-10:09 am

Nonstop3h 04m

Seattle/Tacoma Intl

Tue 12/9

3:45 pm-7:26 pm

Nonstop2h 41m

$89

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Sat 12/6

12:40 pm-2:46 pm

Nonstop3h 06m

Seattle/Tacoma Intl

Sat 12/6

4:47 pm-11:59 pm

1 stop6h 12m

$127

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Sat 2/28

7:50 pm-10:05 pm

Nonstop3h 15m

Seattle/Tacoma Intl

Mon 3/2

7:40 pm-11:22 pm

Nonstop2h 42m

$137

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Sat 2/28

6:29 am-8:40 am

Nonstop3h 11m

Seattle/Tacoma Intl

Tue 3/3

7:40 pm-11:25 pm

Nonstop2h 45m

$137

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Tue 2/24

6:15 am-8:24 am

Nonstop3h 09m

Seattle/Tacoma Intl

Sat 2/28

7:35 am-11:29 am

Nonstop2h 54m

$137

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Fri 2/27

6:15 am-8:24 am

Nonstop3h 09m

Seattle/Tacoma Intl

Tue 3/3

3:15 pm-7:02 pm

Nonstop2h 47m

$137

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Wed 2/25

6:50 pm-9:10 pm

Nonstop3h 20m

Seattle/Tacoma Intl

Sun 3/1

7:40 pm-11:25 pm

Nonstop2h 45m

$137

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Sat 2/28

7:50 pm-10:05 pm

Nonstop3h 15m

Seattle/Tacoma Intl

Sun 3/1

7:40 pm-11:22 pm

Nonstop2h 42m

$137

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Wed 3/4

6:29 am-8:40 am

Nonstop3h 11m

Seattle/Tacoma Intl

Mon 3/9

7:40 pm-11:22 pm

Nonstop2h 42m

$137

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Sun 3/1

6:29 am-8:40 am

Nonstop3h 11m

Seattle/Tacoma Intl

Wed 3/4

7:40 pm-11:25 pm

Nonstop2h 45m

$137

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Showing 1-10 of 22 results
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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 October 31, 2025.

To ensure you get the cheapest price possible for a flight from Aurora to Seattle, you should look to book at least 39 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 $51). Flying from Aurora to Seattle in July is currently the most expensive (average of $119). 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 November 2, 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 November 18, 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 November 2, 2025.

The most flights from 9UR to SEA are scheduled on a Sunday (43 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (15 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 November 2, 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
11,232 reviews

Entertainment

7.0

Crew

8.5

Boarding

8.1

Overall

8.0

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Alaska Airlines
8.0
Very good
11,232 reviews
Alaska Airlines
8.0
Very good
11,232 reviews

Entertainment

7.0

Crew

8.5

Boarding

8.1

Overall

8.0

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Delta
7.9
Good
7,997 reviews
Alaska Airlines
8.0
Very good
11,232 reviews

Entertainment

7.0

Crew

8.5

Boarding

8.1

Overall

8.0

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Hawaiian Airlines
7.8
Good
2,799 reviews
Alaska Airlines
8.0
Very good
11,232 reviews

Entertainment

7.0

Crew

8.5

Boarding

8.1

Overall

8.0

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
United Airlines
7.4
Good
8,993 reviews
Alaska Airlines
8.0
Very good
11,232 reviews

Entertainment

7.0

Crew

8.5

Boarding

8.1

Overall

8.0

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Frontier
5.8
Fair
3,119 reviews
Alaska Airlines
8.0
Very good
11,232 reviews

Entertainment

7.0

Crew

8.5

Boarding

8.1

Overall

8.0

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

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 23 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 173 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 $89, United Airlines can have you in Seattle from Aurora in 3h 04m. 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?

    $69 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on Southwest and Alaska Airlines, with prices starting from $69 and $69, 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 (93%), Condor (90%), Virgin Atlantic (89%).

  • What are the cheapest flights from Aurora to Seattle?

    While on average a flight from Aurora to Seattle is generally $961, our data shows the cheapest flight currently is $48. When looking at the most popular route, (Denver Intl - Seattle/Tacoma Intl), you can expect to pay $69 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 $51). Flying from Aurora to Seattle in July is currently the most expensive (average of $119). 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
SeaTac
Tukwila
Tacoma
Lakewood
Olympia
Ocean Shores
Lynnwood
Edmonds
Leavenworth
Renton
Kirkland
Lacey
Kent
Federal Way
Cle Elum
Marysville
Puyallup
Chehalis
Fife
Issaquah

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Alternative routes for Aurora to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
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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 November 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$64Average$167FlexibilityNo cancel feeOn-time62%
DeltaCheapest$110Average$287FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$111Average$255FlexibilityNo cancel feeOn-time85%
SouthwestCheapest$123Average$310FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$143Average$351FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$158Average$281FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$186Average$236FlexibilityNo cancel feeOn-time71%

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