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Peoria

$153+ Cheap flights from Seattle to Peoria, IL (SEA - PIA)

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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — PIA
Jul 28 — Aug 41
Tue 7/28
Tue 8/4
1 adult, Economy
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Cheap flight deals from Seattle to Peoria

Cheapest flights from Seattle to Peoria
Explore the most affordable flight options available from Seattle to Peoria. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 28, 2026.

This American Airlines deal was found by Cheapflights users on 6/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/283:35 pm
SEA
-
PIA
1 stop6h 24m
American Airlines
Sun 8/304:43 pm
PIA
-
SEA
1 stop10h 07m
American Airlines
Deal found 6/24$349
This United Airlines deal was found by Cheapflights users on 6/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2711:03 pm
SEA
-
PIA
1 stop9h 05m
United Airlines
Sat 10/3110:43 am
PIA
-
SEA
1 stop6h 48m
United Airlines
Deal found 6/24$371
This American Airlines deal was found by Cheapflights users on 6/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/183:41 pm
SEA
-
PIA
1 stop6h 27m
American Airlines
Mon 9/215:28 pm
PIA
-
SEA
1 stop8h 43m
American Airlines
Deal found 6/27$384
This American Airlines deal was found by Cheapflights users on 6/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/102:09 pm
SEA
-
PIA
1 stop8h 13m
American Airlines
Tue 7/146:58 pm
PIA
-
SEA
1 stop7h 54m
American Airlines
Deal found 6/25$390
This American Airlines deal was found by Cheapflights users on 6/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/123:35 pm
SEA
-
PIA
1 stop6h 24m
American Airlines
Sat 8/226:47 pm
PIA
-
SEA
1 stop7h 26m
American Airlines
Deal found 6/27$410
This United Airlines deal was found by Cheapflights users on 6/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2111:00 pm
SEA
-
PIA
1 stop9h 06m
United Airlines
Tue 8/255:45 am
PIA
-
SEA
2 stops12h 29m
United Airlines
Deal found 6/26$415
This American Airlines deal was found by Cheapflights users on 6/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/93:28 pm
SEA
-
PIA
1 stop6h 54m
American Airlines
Mon 7/134:43 pm
PIA
-
SEA
1 stop8h 56m
American Airlines
Deal found 6/24$419
This American Airlines deal was found by Cheapflights users on 6/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/271:52 pm
SEA
-
PIA
1 stop8h 46m
American Airlines
Fri 7/36:58 pm
PIA
-
SEA
1 stop8h 05m
American Airlines
Deal found 6/25$435
This American Airlines deal was found by Cheapflights users on 6/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/73:35 pm
SEA
-
PIA
1 stop6h 24m
American Airlines
Sun 8/96:48 pm
PIA
-
SEA
1 stop7h 25m
American Airlines
Deal found 6/26$443

Find flight deals from Seattle to Peoria

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Peoria (PIA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$349
(American Airlines)

One-way from

$153
(Kiwi.com)

Popular in

July

Cheapest in

October

Average price

$423
Provider with most accurate pricing for Seattle/Tacoma Intl-Greater Peoria flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Greater Peoria flights.
Search Deals
From Seattle/Tacoma Intl to Greater Peoria
Search Deals
One-way flight from Seattle/Tacoma Intl to Greater Peoria
Search Deals
Highest demand for flights based on searches. 22% potential increase in price ($138 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($28 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Peoria 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 June 28, 2026.
Use the filters below to find and compare flights from Seattle to Peoria that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattlePeoria

SEA - PIA

SEAPIA

Seattle/Tacoma Intl

Tue 10/27

7:35 pm-10:08 am

2 stops12h 33m

Greater Peoria

Sat 10/31

8:50 am-6:31 pm

2 stops11h 41m

$381

SeattlePeoria

SEA - PIA

SEAPIA

Seattle/Tacoma Intl

Fri 8/21

6:52 pm-10:06 am

2 stops13h 14m

Greater Peoria

Tue 8/25

8:45 am-6:29 pm

2 stops11h 44m

$420
Quickest round-trip

SeattlePeoria

SEA - PIA

SEAPIA

Seattle/Tacoma Intl

Wed 9/30

11:13 pm-10:06 am

1 stop8h 53m

Greater Peoria

Sat 10/3

4:05 pm-10:56 pm

1 stop8h 51m

$449

SeattlePeoria

SEA - PIA

SEAPIA

Seattle/Tacoma Intl

Fri 8/28

11:00 pm-10:06 am

1 stop9h 06m

Greater Peoria

Sun 8/30

5:45 am-4:14 pm

2 stops12h 29m

$454

SeattlePeoria

SEA - PIA

SEAPIA

Seattle/Tacoma Intl

Fri 9/18

6:52 pm-9:57 am

2 stops13h 05m

Greater Peoria

Mon 9/21

3:35 pm-10:45 pm

1 stop9h 10m

$534

SeattlePeoria

SEA - PIA

SEAPIA

Seattle/Tacoma Intl

Thu 7/9

7:05 pm-10:09 am

2 stops13h 04m

Greater Peoria

Mon 7/13

5:43 pm-10:56 pm

1 stop7h 13m

$550
Cheapest one-way

SeattlePeoria

SEA - PIA

SEAPIA

Seattle/Tacoma Intl

Sun 8/23

9:29 pm-6:16 pm

1 stop18h 47m

$240
Quickest one-way

SeattlePeoria

SEA - PIA

SEAPIA

Seattle/Tacoma Intl

Thu 8/27

1:57 pm-10:43 pm

1 stop6h 46m

$424

SeattlePeoria

SEA - PIA

SEAPIA

Seattle/Tacoma Intl

Mon 8/24

5:00 am-3:53 pm

1 stop8h 53m

$424

SeattlePeoria

SEA - PIA

SEAPIA

Seattle/Tacoma Intl

Fri 8/21

1:57 pm-10:43 pm

1 stop6h 46m

$424

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/26

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

Compare providers for flights from Seattle to Peoria

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Peoria in June.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Peoria, Illinois flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Peoria, Illinois flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Peoria, Illinois flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Peoria, Illinois flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Peoria, Illinois flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Peoria

Have a flexible travel schedule? Discover the best time to fly to Peoria from Seattle 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 Seattle to Peoria

What is the cheapest month to book a flight from Seattle to Peoria, Illinois?

Currently, October is the cheapest month in which you can book a flight from Seattle to Peoria, Illinois (average of $273). Flying from Seattle to Peoria, Illinois in July is currently the most expensive (average of $776). 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.

How much does it cost to fly round-trip from Seattle to Peoria, Illinois?

Reviews of airlines servicing Peoria

Get insights into the airlines that provide service to Peoria. 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 Peoria. Reviews last updated June 28, 2026.
Peruse reviews from past customers who have flown with United Airlines and American Airlines from Seattle to Peoria 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.
United Airlines
7.4
Good
9,899 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
9,899 reviews
United Airlines
7.4
Good
9,899 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
American Airlines
7.1
Good
11,776 reviews
United Airlines
7.4
Good
9,899 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

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

  • How long is the flight from Seattle to Peoria, Illinois?

    Airlines like United Airlines fly from Seattle to Peoria, Illinois in about 9h 05m. The time it takes to get you to your destination can typically vary by up to . The distance from Seattle to Peoria, Illinois is about 1671 mi.

  • What are the cheapest airlines flying from Seattle to Peoria, Illinois round-trip?

    American Airlines, at $250, was found to be the cheapest airline from Seattle to Peoria, Illinois. An alternate airline flying to your destination would be United Airlines. Users have found that American Airlines is 46% cheaper than the other options available to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle to Peoria 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 Seattle to Peoria, Illinois?

    Currently, October is the cheapest month in which you can book a flight from Seattle to Peoria, Illinois (average of $273). Flying from Seattle to Peoria, Illinois in July is currently the most expensive (average of $776). 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

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Seattle to Peoria

Discover the top 2 airlines that operate flights from Seattle to Peoria. 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 June 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$250Average$368FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$273Average$454FlexibilityNo cancel feeOn-time69%

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