HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Seattle

$78+ 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 7/16. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SEA
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
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 October or September, booked 28 days in advance, depart on a Friday or Thursday and return on a Saturday

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 July 3, 2025.

Round-trip from

$129
(Frontier)

One-way from

$78
(Kiwi.com)

Popular in

May

Cheapest in

October

Average price

$233
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. 11% potential increase in price ($25 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 July 2025
Search Deals

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 July 3, 2025.

This Frontier deal was found by Cheapflights users on 7/2. 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 8/110:29 pmDEN - SEA
Nonstop3h 05mFrontier
Wed 8/66:25 amSEA - DEN
Nonstop2h 49mFrontier
Deal found 7/2$129
This Alaska Airlines deal was found by Cheapflights users on 7/2. 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 8/279:23 pmDEN - SEA
Nonstop2h 58mAlaska Airlines
Sun 8/315:20 amSEA - DEN
1 stop4h 20mAlaska Airlines
Deal found 7/2$175

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 July 3, 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

Fri 8/1

10:29 pm-12:34 am

Nonstop3h 05m

Seattle/Tacoma Intl

Wed 8/6

6:25 am-10:14 am

Nonstop2h 49m

$129

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Wed 8/27

1:05 pm-6:10 pm

1 stop6h 05m

Seattle/Tacoma Intl

Sat 8/30

3:05 pm-6:45 pm

Nonstop2h 40m

$175

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Wed 7/16

9:36 pm-11:42 pm

Nonstop3h 06m

$78

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Wed 8/13

12:00 pm-1:59 pm

Nonstop2h 59m

$79

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Fri 10/10

3:00 pm-10:59 pm

1 stop8h 59m

$85

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Tue 9/2

7:10 am-2:43 pm

1 stop8h 33m

$94

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Tue 10/28

3:20 pm-10:55 pm

2 stops8h 35m

$102

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Mon 8/18

7:06 pm-11:02 pm

1 stop4h 56m

$108

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Fri 12/19

7:13 pm-9:12 pm

Nonstop2h 59m

$109

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

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 June 27, 2025.

To ensure you get the cheapest price possible for a flight from Aurora to Seattle, you should look to book at least 28 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, January is the cheapest month in which you can book a flight from Aurora to Seattle (average of $238). Flying from Aurora to Seattle in July is currently the most expensive (average of $390). 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 July 3, 2025.

When flying from Aurora to Seattle, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 June 30, 2024.

Travelers seeking maximum savings on their Aurora to Seattle flight should consider departing on Thursday afternoons when fares are most often at their lowest. Sunday mornings 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 July 3, 2025.

The most flights from 9UR to SEA are scheduled on a Thursday (59 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (22 on average).

How much does it cost to fly round-trip from Aurora to Seattle?

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 July 3, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and Delta 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
10,000 reviews

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Southwest
8.0
Very good
4,270 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,970 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Hawaiian Airlines
7.8
Good
2,545 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,845 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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 36 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 205 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    $78 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Alaska Airlines and Hawaiian Airlines, with prices starting from $79 and $85, 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: Singapore Airlines (88%), ANA (82%), United Airlines (76%).

  • What are the cheapest flights from Aurora to Seattle?

    While on average a flight from Aurora to Seattle is generally $1,440, our data shows the cheapest flight currently is $88. When looking at the most popular route, (Denver Intl - Seattle/Tacoma Intl), you can expect to pay $98 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, January is the cheapest month in which you can book a flight from Aurora to Seattle (average of $238). Flying from Aurora to Seattle in July is currently the most expensive (average of $390). 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 Aurora?

Book flights to Aurora if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Lakewood
Ocean Shores
Lacey
Leavenworth
Lynnwood
Renton
Olympia
Shoreline
Puyallup
Cle Elum
Centralia
Kent
Federal Way
Chehalis
Kirkland
Aberdeen
Shelton

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
Grand Junction to Spokane flights
Colorado Springs to Seattle flights
Grand Junction to Seattle flights
Denver to Everett flights
Denver to Bellingham flights
Montrose to Seattle flights
Durango to Seattle flights
Grand Junction to Portland flights
Colorado Springs to Portland flights
Denver to Pasco flights
Montrose to Portland flights
Hayden to Seattle flights
Denver to Pullman flights
Aspen to Seattle flights
Colorado Springs to Spokane flights
Vail to Seattle flights
Denver to Wenatchee flights
Denver to Walla Walla flights
Aspen to Portland flights
Durango to Portland flights
Montrose to Spokane flights
Hayden to Portland flights
Durango to Spokane flights
Aspen to Spokane flights
Denver to Yakima flights
Colorado Springs to Pasco flights
Vail to Spokane flights
Grand Junction to Pasco flights
Gunnison to Portland flights
Gunnison to Seattle flights
Cortez to Portland flights
Grand Junction to Wenatchee flights
Aspen to Bellingham flights
Grand Junction to Yakima flights
Aspen to Pasco flights
Colorado Springs to Bellingham flights
Alamosa to Spokane 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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$58Average$152FlexibilityNo cancel feeOn-time62%
DeltaCheapest$109Average$349FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$115Average$259FlexibilityNo cancel feeOn-time85%
SouthwestCheapest$135Average$330FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$148Average$349FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$159Average$277FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$206Average$278FlexibilityNo 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.