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$157+ Cheap flights from Peoria, IL to Seattle (PIA - 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 5/10. Fares are subject to change and may not be available on all flights or dates of travel.
PIA — SEA
May 27 — Jun 31
Wed 5/27
Wed 6/3
1 adult, Economy
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Cheap flight deals from Peoria to Seattle

Cheapest flights from Peoria to Seattle
Explore the most affordable flight options available from Peoria to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 27, 2026.

This American Airlines deal was found by Cheapflights users on 4/26. 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.
Wed 9/26:45 pm
PIA
-
SEA
1 stop7h 05m
American Airlines
Wed 9/95:05 am
SEA
-
PIA
1 stop8h 49m
American Airlines
Deal found 4/26$271
This American Airlines deal was found by Cheapflights users on 4/26. 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.
Wed 6/107:11 pm
PIA
-
SEA
1 stop7h 30m
American Airlines
Sat 6/1311:58 pm
SEA
-
PIA
1 stop7h 16m
American Airlines
Deal found 4/26$316
This United Airlines deal was found by Cheapflights users on 4/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/25:31 pm
PIA
-
SEA
1 stop7h 11m
United Airlines
Wed 9/912:29 pm
SEA
-
PIA
2 stops9h 53m
United Airlines
Deal found 4/25$318
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/35:33 pm
PIA
-
SEA
1 stop8h 26m
United Airlines
Mon 6/811:52 pm
SEA
-
PIA
1 stop8h 18m
United Airlines
Deal found 4/24$320
This American Airlines deal was found by Cheapflights users on 4/26. 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.
Tue 6/237:11 pm
PIA
-
SEA
1 stop7h 30m
American Airlines
Tue 6/3011:58 pm
SEA
-
PIA
1 stop7h 25m
American Airlines
Deal found 4/26$361
This American Airlines deal was found by Cheapflights users on 4/25. 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.
Mon 6/157:03 pm
PIA
-
SEA
1 stop7h 13m
American Airlines
Tue 6/235:10 am
SEA
-
PIA
1 stop8h 40m
American Airlines
Deal found 4/25$365
This American Airlines deal was found by Cheapflights users on 4/26. 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.
Thu 5/286:58 pm
PIA
-
SEA
1 stop7h 18m
American Airlines
Thu 6/43:05 pm
SEA
-
PIA
1 stop7h 33m
American Airlines
Deal found 4/26$369
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/305:06 am
PIA
-
SEA
1 stop9h 04m
American Airlines
Wed 7/811:56 pm
SEA
-
PIA
1 stop7h 25m
American Airlines
Deal found 4/24$371
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/128:25 am
PIA
-
SEA
2 stops13h 38m
United Airlines
Sat 9/197:35 pm
SEA
-
PIA
2 stops12h 17m
United Airlines
Deal found 4/24$381
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/312:49 pm
PIA
-
SEA
1 stop23h 46m
Multiple Airlines
Sat 7/47:41 pm
SEA
-
PIA
1 stop21h 53m
Multiple Airlines
Deal found 4/24$382

Find flight deals from Peoria to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Peoria (PIA) to Seattle (SEA). 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 April 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$316
(American Airlines)

One-way from

$157
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$483
Provider with most accurate pricing for Greater Peoria-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Greater Peoria-Seattle/Tacoma Intl flights.
Search Deals
From Greater Peoria to Seattle/Tacoma Intl
Search Deals
One-way flight from Greater Peoria to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($123 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($16 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 Peoria 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 27, 2026.
Use the filters below to find and compare flights from Peoria to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PeoriaSeattle

PIA - SEA

PIASEA

Greater Peoria

Tue 6/23

7:11 pm-12:41 am

1 stop7h 30m

Seattle/Tacoma Intl

Tue 6/30

11:58 pm-9:23 am

1 stop7h 25m

$361

PeoriaSeattle

PIA - SEA

PIASEA

Greater Peoria

Fri 5/8

2:50 pm-10:59 pm

2 stops10h 09m

Seattle/Tacoma Intl

Tue 5/12

7:00 am-4:50 pm

1 stop7h 50m

$415

PeoriaSeattle

PIA - SEA

PIASEA

Greater Peoria

Fri 5/1

10:45 am-6:30 pm

2 stops9h 45m

Seattle/Tacoma Intl

Tue 5/5

11:53 pm-10:04 am

1 stop8h 11m

$444

PeoriaSeattle

PIA - SEA

PIASEA

Greater Peoria

Wed 6/3

5:33 pm-10:39 pm

1 stop7h 06m

Seattle/Tacoma Intl

Mon 6/8

5:04 pm-10:10 am

2 stops15h 06m

$474
Quickest round-trip

PeoriaSeattle

PIA - SEA

PIASEA

Greater Peoria

Mon 6/8

7:03 pm-12:16 am

1 stop7h 13m

Seattle/Tacoma Intl

Sun 6/14

11:58 pm-9:20 am

1 stop7h 22m

$492

PeoriaSeattle

PIA - SEA

PIASEA

Greater Peoria

Thu 7/2

2:39 pm-10:36 pm

1 stop9h 57m

Seattle/Tacoma Intl

Wed 7/8

11:52 pm-10:09 am

1 stop8h 17m

$519

PeoriaSeattle

PIA - SEA

PIASEA

Greater Peoria

Fri 7/3

1:21 pm-11:10 pm

2 stops11h 49m

Seattle/Tacoma Intl

Tue 7/7

7:05 pm-10:09 am

2 stops13h 04m

$573

PeoriaSeattle

PIA - SEA

PIASEA

Greater Peoria

Mon 6/8

5:33 pm-11:59 pm

1 stop8h 26m

Seattle/Tacoma Intl

Fri 6/12

11:52 pm-12:46 pm

1 stop10h 54m

$611

PeoriaSeattle

PIA - SEA

PIASEA

Greater Peoria

Thu 5/21

1:21 pm-7:05 pm

1 stop7h 44m

Seattle/Tacoma Intl

Mon 6/1

11:52 pm-10:10 am

1 stop8h 18m

$618

PeoriaSeattle

PIA - SEA

PIASEA

Greater Peoria

Sat 7/11

5:33 pm-12:14 am

1 stop8h 41m

Seattle/Tacoma Intl

Fri 7/17

8:05 pm-12:46 pm

2 stops14h 41m

$648

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/22

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

Compare providers for flights from Peoria to Seattle

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 Peoria to Seattle in April.
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 Peoria, Illinois-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Peoria, Illinois-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Peoria, Illinois-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Peoria, Illinois-Seattle 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 Peoria, Illinois-Seattle 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 Peoria to Seattle

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

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

Currently, February is the cheapest month in which you can book a flight from Peoria, Illinois to Seattle (average of $251). Flying from Peoria, Illinois to Seattle in July is currently the most expensive (average of $654). 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 Peoria, Illinois 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 27, 2026.
Get a feel of what it's like to fly with United Airlines and American Airlines from Peoria to Seattle by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,665 reviews

Food

6.6

Entertainment

7.1

Comfort

7.3

Crew

8.1

Overall

7.4

Boarding

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
United Airlines
7.4
Good
9,665 reviews
United Airlines
7.4
Good
9,665 reviews

Food

6.6

Entertainment

7.1

Comfort

7.3

Crew

8.1

Overall

7.4

Boarding

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
American Airlines
7.1
Good
11,668 reviews
United Airlines
7.4
Good
9,665 reviews

Food

6.6

Entertainment

7.1

Comfort

7.3

Crew

8.1

Overall

7.4

Boarding

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

Related info for your journey

Find useful and relevant information for your journey from Peoria to Seattle. 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 Peoria, Illinois to Seattle?

    Airlines like American Airlines and United Airlines fly from Peoria, Illinois to Seattle in about 7h 30m. The time it takes to get you to your destination can typically vary by up to 2h 39m. The distance from Peoria, Illinois to Seattle is about 1671 mi. This flight may include one or multiple stops.

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

    Currently priced at $269, United Airlines will fly you from Peoria, Illinois to Seattle and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on American Airlines for as low as $288. United Airlines is currently priced 43% below the average price you’ll pay for this route.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Peoria, Illinois to Seattle (average of $251). Flying from Peoria, Illinois to Seattle in July is currently the most expensive (average of $654). 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
Tacoma
Ocean Shores
Olympia
Lynnwood
Lacey
Edmonds
Leavenworth
Snoqualmie
Tumwater
Tukwila
Puyallup
Kent
Renton
Kirkland
Ellensburg
Fife
Lakewood
Issaquah
Shoreline

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Peoria to Seattle

Discover the top 2 airlines that operate flights from Peoria 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 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$269Average$493FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$288Average$543FlexibilityNo cancel feeOn-time71%

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