HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Seattle

$68+ 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 4/29. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SEA
May 24 — May 311
Sun 5/24
Sun 5/31
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 51 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 April 24, 2026.

This Frontier deal was found by Cheapflights users on 4/19. 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.
Tue 5/127:50 am
DEN
-
SEA
Nonstop2h 59m
Frontier
Fri 5/157:50 pm
SEA
-
DEN
Nonstop3h 04m
Frontier
Deal found 4/19$98
This Kiwi.com deal was found by Cheapflights users on 4/20. 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.
Tue 5/127:50 am
DEN
-
SEA
Nonstop2h 59m
Frontier
Sun 5/177:50 pm
SEA
-
DEN
Nonstop3h 04m
Frontier
Deal found 4/20$105
This Cheapflightsfares deal was found by Cheapflights users on 4/20. 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 5/288:00 am
DEN
-
SEA
Nonstop3h 06m
Frontier
Mon 6/13:19 pm
SEA
-
DEN
Nonstop2h 59m
Frontier
Deal found 4/20$106
This Cheapflightsfares deal was found by Cheapflights users on 4/20. 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 5/117:50 am
DEN
-
SEA
Nonstop2h 59m
Frontier
Thu 5/147:50 pm
SEA
-
DEN
Nonstop3h 04m
Frontier
Deal found 4/20$107
This Frontier deal was found by Cheapflights users on 4/19. 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.
Sun 5/107:50 am
DEN
-
SEA
Nonstop2h 59m
Frontier
Mon 5/117:50 pm
SEA
-
DEN
Nonstop3h 04m
Frontier
Deal found 4/19$108
This Travelocity deal was found by Cheapflights users on 4/22. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/136:00 am
DEN
-
SEA
Nonstop3h 05m
Multiple Airlines
Fri 5/157:50 pm
SEA
-
DEN
Nonstop3h 04m
Multiple Airlines
Deal found 4/22$109
This Cheapflightsfares deal was found by Cheapflights users on 4/24. 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 6/237:45 am
DEN
-
SEA
Nonstop3h 03m
Frontier
Tue 6/307:41 pm
SEA
-
DEN
Nonstop2h 55m
Frontier
Deal found 4/24$110
This Expedia deal was found by Cheapflights users on 4/21. 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.
Sat 6/2012:14 pm
DEN
-
SEA
Nonstop3h 04m
Frontier
Thu 6/257:41 pm
SEA
-
DEN
Nonstop2h 55m
Frontier
Deal found 4/21$111
This Frontier deal was found by Cheapflights users on 4/22. 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.
Wed 5/67:50 am
DEN
-
SEA
Nonstop2h 59m
Frontier
Wed 5/137:50 pm
SEA
-
DEN
Nonstop3h 04m
Frontier
Deal found 4/22$112
This Kiwi.com deal was found by Cheapflights users on 4/23. 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 6/2010:29 pm
DEN
-
SEA
1 stop13h 06m
Frontier
Wed 7/17:41 pm
SEA
-
DEN
Nonstop2h 55m
Frontier
Deal found 4/23$113
This Kiwi.com deal was found by Cheapflights users on 4/20. 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.
Mon 5/117:50 am
DEN
-
SEA
Nonstop2h 59m
Frontier
Fri 5/157:50 pm
SEA
-
DEN
Nonstop3h 04m
Frontier
Deal found 4/20$116
This Frontier deal was found by Cheapflights users on 4/21. 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.
Tue 5/127:50 am
DEN
-
SEA
Nonstop2h 59m
Frontier
Wed 5/137:50 pm
SEA
-
DEN
Nonstop3h 04m
Frontier
Deal found 4/21$117

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 April 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$98
(Frontier)

One-way from

$68
(Super.com)

Popular in

June

Cheapest in

January

Average price

$217
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. 15% potential increase in price ($38 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
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 April 24, 2026.
Use the filters below to find and compare flights from Aurora to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Sat 6/13

6:30 am-8:31 am

Nonstop3h 01m

Seattle/Tacoma Intl

Mon 6/15

7:55 pm-11:45 pm

Nonstop2h 50m

$157

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Wed 7/1

6:41 pm-8:44 pm

Nonstop3h 03m

Seattle/Tacoma Intl

Mon 7/6

7:55 pm-11:45 pm

Nonstop2h 50m

$157

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Thu 7/2

6:41 pm-8:44 pm

Nonstop3h 03m

Seattle/Tacoma Intl

Sat 7/11

5:25 am-11:50 am

1 stop5h 25m

$167

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Wed 6/3

6:19 pm-12:10 am

1 stop6h 51m

Seattle/Tacoma Intl

Thu 6/4

7:15 am-2:58 pm

1 stop6h 43m

$177

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Wed 6/10

7:00 pm-11:59 pm

1 stop5h 59m

Seattle/Tacoma Intl

Wed 6/17

7:15 am-3:00 pm

1 stop6h 45m

$237

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Tue 5/12

1:02 pm-9:45 pm

1 stop9h 43m

Seattle/Tacoma Intl

Wed 5/13

3:02 pm-11:49 pm

1 stop7h 47m

$255

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Tue 5/12

1:02 pm-10:18 pm

2 stops10h 16m

Seattle/Tacoma Intl

Sat 5/16

3:50 pm-9:37 pm

1 stop4h 47m

$289

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Fri 5/15

8:10 pm-12:55 am

1 stop5h 45m

Seattle/Tacoma Intl

Sun 5/17

3:25 pm-11:55 pm

1 stop7h 30m

$297

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Fri 6/19

7:00 pm-11:59 pm

1 stop5h 59m

Seattle/Tacoma Intl

Sun 6/21

5:30 am-11:51 am

1 stop5h 21m

$297

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Wed 9/2

6:25 pm-12:01 am

1 stop6h 36m

Seattle/Tacoma Intl

Sun 9/13

5:45 am-11:54 am

1 stop5h 09m

$303

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/21

Showing 1-10 of 21 resultsSorted by cheapest first
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

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 April 24, 2026.

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 21% 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 April 18, 2026.

Travelers seeking maximum savings on their Aurora to Seattle flight should consider departing on Friday evenings when fares are most often at their lowest. Sunday 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 April 24, 2026.

The most flights from 9UR to SEA are scheduled on a Wednesday (35 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (20 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 April 24, 2026.
Peruse reviews from past customers who have flown with Southwest,Alaska Airlines, andDelta 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.
Southwest
8.0
Very good
4,334 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Overall

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,334 reviews
Southwest
8.0
Very good
4,334 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Overall

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Alaska Airlines
7.9
Good
12,282 reviews
Southwest
8.0
Very good
4,334 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Overall

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Delta
7.9
Good
8,455 reviews
Southwest
8.0
Very good
4,334 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Overall

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
United Airlines
7.4
Good
9,648 reviews
Southwest
8.0
Very good
4,334 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Overall

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Frontier
5.7
Fair
2,980 reviews
Southwest
8.0
Very good
4,334 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Overall

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

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 27 flights from Aurora to Seattle/Tacoma Intl per day from 6 different airlines.

  • How popular is this Aurora to Seattle flight route?

    This flight path from Aurora to Seattle/Tacoma Intl was viewed by 127 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 $157, Delta can have you in Seattle from Aurora in 3h 01m. 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?

    $32 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 $68 and $70, 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: KLM (100%), WestJet (96%), Japan Airlines (92%).

  • What are the cheapest flights from Aurora to Seattle?

    While on average a flight from Aurora to Seattle is generally $692, our data shows the cheapest flight currently is $84. When looking at the most popular route, (Denver Intl - Seattle/Tacoma Intl), you can expect to pay $104 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.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tacoma
Ocean Shores
Olympia
Lynnwood
Lacey
Edmonds
Leavenworth
Snoqualmie
Kent
Tumwater
Tukwila
Puyallup
Renton
Kirkland
Ellensburg
Fife
Lakewood
Issaquah
Shoreline

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.

Top 6 airlines flying from Aurora to Seattle

Discover the top 6 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 April 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$55Average$167FlexibilityNo cancel feeOn-time62%
DeltaCheapest$88Average$257FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$107Average$232FlexibilityNo cancel feeOn-time85%
United AirlinesCheapest$116Average$332FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$117Average$321FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$125Average$273FlexibilityNo cancel feeOn-time75%

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.