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Peoria

$341+ Cheap flights from Seattle to Peoria, IL (SEA - PIA)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/19. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — PIA
Dec 12 — Dec 191
Fri 12/12
Fri 12/19
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Greater Peoria are usually found in December or October, booked 78 days in advance, depart on a Saturday or Tuesday and return on a Wednesday

Cheap 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 November 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$341
(Kiwi.com)

Popular in

March

Cheapest in

December

Average price

$515
Provider with most accurate pricing for Seattle/Tacoma Intl-Greater Peoria flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Greater Peoria flights.
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From Seattle/Tacoma Intl to Greater Peoria
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Highest demand for flights based on searches. 1% potential increase in price ($6 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find 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 November 12, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/9. 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 12/191:25 pmSEA - PIA
2 stops23h 53mMultiple Airlines
Mon 12/229:52 pmPIA - SEA
1 stop14h 19mMultiple Airlines
Deal found 11/9$341
This Kiwi.com deal was found by Cheapflights users on 11/9. 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 12/1511:01 amSEA - PIA
1 stop7h 50mMultiple Airlines
Mon 12/229:52 pmPIA - SEA
1 stop14h 19mMultiple Airlines
Deal found 11/9$353
This Kiwi.com deal was found by Cheapflights users on 11/9. 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 12/1511:01 amSEA - PIA
1 stop7h 50mMultiple Airlines
Fri 12/199:52 pmPIA - SEA
1 stop15h 39mMultiple Airlines
Deal found 11/9$362
This Kiwi.com deal was found by Cheapflights users on 11/9. 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.
Thu 12/181:25 pmSEA - PIA
1 stop29h 01mMultiple Airlines
Mon 12/229:52 pmPIA - SEA
1 stop14h 19mMultiple Airlines
Deal found 11/9$366

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 November 12, 2025.
Use the filters below to find and compare flights from Seattle to Peoria that are best for you.

Fly from

Seattle

Fly to

Peoria

Route

Depart

Return

Price

SeattlePeoria

SEA - PIA

SEAPIA

Seattle/Tacoma Intl

Tue 12/16

11:34 am-10:59 pm

1 stop9h 25m

Greater Peoria

Mon 12/22

5:00 am-12:37 pm

1 stop9h 37m

$440

SeattlePeoria

SEA - PIA

SEAPIA

Seattle/Tacoma Intl

Tue 12/16

11:50 pm-2:03 pm

2 stops12h 13m

Greater Peoria

Mon 12/22

5:19 pm-10:47 pm

1 stop7h 28m

$445

SeattlePeoria

SEA - PIA

SEAPIA

Seattle/Tacoma Intl

Wed 12/17

9:05 am-8:56 pm

2 stops9h 51m

Greater Peoria

Mon 12/22

5:19 pm-10:47 pm

1 stop7h 28m

$445

SeattlePeoria

SEA - PIA

SEAPIA

Seattle/Tacoma Intl

Tue 12/16

7:00 am-4:40 pm

1 stop7h 40m

Greater Peoria

Wed 12/24

8:35 am-9:55 am

1 stop27h 20m

$458

SeattlePeoria

SEA - PIA

SEAPIA

Seattle/Tacoma Intl

Wed 12/17

9:05 am-8:56 pm

2 stops9h 51m

Greater Peoria

Wed 12/24

8:35 am-9:55 am

1 stop27h 20m

$462

SeattlePeoria

SEA - PIA

SEAPIA

Seattle/Tacoma Intl

Tue 12/16

7:34 pm-10:09 am

2 stops12h 35m

Greater Peoria

Sun 12/21

5:19 pm-10:47 pm

1 stop7h 28m

$480

SeattlePeoria

SEA - PIA

SEAPIA

Seattle/Tacoma Intl

Wed 12/17

9:05 am-8:56 pm

2 stops9h 51m

Greater Peoria

Thu 12/25

1:20 pm-6:46 pm

1 stop7h 26m

$480

SeattlePeoria

SEA - PIA

SEAPIA

Seattle/Tacoma Intl

Wed 12/17

9:05 am-8:56 pm

2 stops9h 51m

Greater Peoria

Sun 12/21

5:19 pm-10:47 pm

1 stop7h 28m

$480

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/9

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 November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Seattle-Peoria, Illinois flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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

How far ahead should I book a flight from Seattle to Peoria, Illinois?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Peoria. Price data was last updated on November 7, 2025.

The best time to book flights from Seattle to Peoria, Illinois is 68 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, April is the cheapest month in which you can book a flight from Seattle to Peoria, Illinois (average of $228). Flying from Seattle to Peoria, Illinois in July is currently the most expensive (average of $356). 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.

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 November 12, 2025.
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
9,016 reviews

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.1

Food

6.6

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
United Airlines
7.4
Good
9,016 reviews
United Airlines
7.4
Good
9,016 reviews

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.1

Food

6.6

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
American Airlines
7.2
Good
11,052 reviews
United Airlines
7.4
Good
9,016 reviews

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.1

Food

6.6

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.

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 American Airlines and United Airlines fly from Seattle to Peoria, Illinois in about 9h 25m. The time it takes to get you to your destination can typically vary by up to 2h 48m. The distance from Seattle to Peoria, Illinois is about 1671 mi. This flight may include one or multiple stops.

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

    American Airlines, at $228, 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 45% 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, April is the cheapest month in which you can book a flight from Seattle to Peoria, Illinois (average of $228). Flying from Seattle to Peoria, Illinois in July is currently the most expensive (average of $356). 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.

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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 November 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$228Average$371FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$288Average$445FlexibilityNo cancel feeOn-time69%

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