$220+ 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 9/30. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — PIA
Sep 7 — Sep 141
Round-trip
1 adult, Economy
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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
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Seattle to Peoria
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Best
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One-way
Cheapest flights from Seattle to PeoriaExplore 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 August 8, 2026.
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 August 8, 2026.
This American Airlines deal was found by Cheapflights users on 8/4. 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 9/106:15 am -
1 stop8h 43m
Wed 9/165:28 pm -
1 stop8h 43m
Deal found 8/4![American Airlines logo]()
$281
This United Airlines deal was found by Cheapflights users on 8/3. 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 10/211:56 pm -
1 stop7h 02m
Wed 10/286:25 am -
2 stops9h 29m
Deal found 8/3![United Airlines logo]()
$286
This United Airlines deal was found by Cheapflights users on 8/5. 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 9/511:00 pm -
1 stop9h 06m
Sat 9/128:45 am -
2 stops9h 29m
Deal found 8/5![United Airlines logo]()
$301
This American Airlines deal was found by Cheapflights users on 8/8. 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 9/162:12 pm -
1 stop7h 03m
Mon 9/215:28 pm -
1 stop8h 43m
Deal found 8/8![American Airlines logo]()
$320
This Kiwi.com deal was found by Cheapflights users on 8/5. 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.
Wed 9/94:27 pm -
1 stop22h 52m
Mon 9/145:14 pm -
2 stops27h 22m
Deal found 8/5![Multiple Airlines logo]()
$344
This Kiwi.com deal was found by Cheapflights users on 8/4. 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.
Wed 8/267:06 pm -
1 stop20h 18m
Sun 8/3010:07 am -
1 stop25h 12m
Deal found 8/4![Multiple Airlines logo]()
$346
This American Airlines deal was found by Cheapflights users on 8/4. 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 8/285:00 am -
1 stop8h 53m
Sun 8/304:43 pm -
1 stop10h 07m
Deal found 8/4![American Airlines logo]()
$359
This United Airlines deal was found by Cheapflights users on 8/4. 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 8/2611:03 am -
2 stops9h 40m
Sun 8/308:45 am -
1 stop6h 37m
Deal found 8/4![United Airlines logo]()
$364
Best flights from Seattle to PeoriaDiscover carefully curated flight deals from Seattle to Peoria that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 8, 2026.
Discover carefully curated flight deals from Seattle to Peoria that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 8, 2026.
This American Airlines deal was found by Cheapflights users on 8/3. 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 10/216:12 am -
1 stop8h 47m
Wed 10/287:00 am -
1 stop9h 46m
Deal found 8/3![American Airlines logo]()
$281
This United Airlines deal was found by Cheapflights users on 8/7. 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 9/511:00 pm -
1 stop9h 06m
Sat 9/123:35 pm -
1 stop9h 10m
Deal found 8/7![United Airlines logo]()
$339
This United Airlines deal was found by Cheapflights users on 8/4. 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 8/2611:03 am -
2 stops9h 40m
Sun 8/308:45 am -
1 stop6h 37m
Deal found 8/4![United Airlines logo]()
$364
This United Airlines deal was found by Cheapflights users on 8/5. 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 10/312:30 pm -
1 stop6h 28m
Tue 11/36:25 am -
1 stop7h 54m
Deal found 8/5![United Airlines logo]()
$381
This United Airlines deal was found by Cheapflights users on 8/5. 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 9/125:10 pm -
2 stops14h 47m
Wed 9/163:35 pm -
1 stop9h 10m
Deal found 8/5![United Airlines logo]()
$386
This United Airlines deal was found by Cheapflights users on 8/6. 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 9/91:57 pm -
1 stop7h 16m
Tue 9/156:05 am -
2 stops11h 34m
Deal found 8/6![United Airlines logo]()
$386
This United Airlines deal was found by Cheapflights users on 8/3. 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 10/218:30 am -
2 stops12h 28m
Wed 10/288:15 am -
2 stops15h 24m
Deal found 8/3![United Airlines logo]()
$391
This United Airlines deal was found by Cheapflights users on 8/6. 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 8/1911:03 am -
1 stop7h 47m
Sun 8/235:45 am -
2 stops10h 39m
Deal found 8/6![United Airlines logo]()
$405
Last-minute flights from Seattle to PeoriaDiscover last-minute flight deals from Seattle to Peoria. Data last updated August 8, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Peoria. Data last updated August 8, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 8/4. 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.
Wed 8/267:06 pm -
1 stop20h 18m
Sun 8/3010:07 am -
1 stop25h 12m
Deal found 8/4![Multiple Airlines logo]()
$346
This United Airlines deal was found by Cheapflights users on 8/4. 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 8/2611:03 am -
2 stops9h 40m
Sun 8/308:45 am -
1 stop6h 37m
Deal found 8/4![United Airlines logo]()
$364
This American Airlines deal was found by Cheapflights users on 8/7. 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 8/265:00 am -
1 stop8h 53m
Sun 8/3012:20 pm -
1 stop9h 44m
Deal found 8/7![American Airlines logo]()
$365
This American Airlines deal was found by Cheapflights users on 8/4. 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 8/285:00 am -
1 stop8h 53m
Sun 8/304:43 pm -
1 stop10h 07m
Deal found 8/4![American Airlines logo]()
$359
This United Airlines deal was found by Cheapflights users on 8/5. 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 9/511:00 pm -
1 stop9h 06m
Sat 9/128:45 am -
2 stops9h 29m
Deal found 8/5![United Airlines logo]()
$301
This Kiwi.com deal was found by Cheapflights users on 8/5. 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.
Wed 9/94:27 pm -
1 stop22h 52m
Mon 9/145:14 pm -
2 stops27h 22m
Deal found 8/5![Multiple Airlines logo]()
$344
This American Airlines deal was found by Cheapflights users on 8/4. 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 9/106:15 am -
1 stop8h 43m
Wed 9/165:28 pm -
1 stop8h 43m
Deal found 8/4![American Airlines logo]()
$281
This American Airlines deal was found by Cheapflights users on 8/8. 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 9/162:12 pm -
1 stop7h 03m
Mon 9/215:28 pm -
1 stop8h 43m
Deal found 8/8![American Airlines logo]()
$320
One-way flights from Seattle to PeoriaSearch for one-way flight options from Seattle to Peoria. Find affordable one-way fares based on user searches. Data last updated August 8, 2026.
Search for one-way flight options from Seattle to Peoria. Find affordable one-way fares based on user searches. Data last updated August 8, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/4. 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.
Wed 9/304:27 pm -
1 stop18h 52m
Deal found 8/4![Multiple Airlines logo]()
$220
This Kiwi.com deal was found by Cheapflights users on 8/5. 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 9/298:15 pm -
2 stops39h 04m
Deal found 8/5![Multiple Airlines logo]()
$230
This Kiwi.com deal was found by Cheapflights users on 8/6. 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.
Wed 8/197:06 pm -
1 stop20h 18m
Deal found 8/6![Multiple Airlines logo]()
$249
This Kiwi.com deal was found by Cheapflights users on 8/4. 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 8/138:53 pm -
1 stop13h 02m
Deal found 8/4![Multiple Airlines logo]()
$313
This American Airlines deal was found by Cheapflights users on 8/5. 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 9/292:12 pm -
1 stop7h 03m
Deal found 8/5![American Airlines logo]()
$379
This United Airlines deal was found by Cheapflights users on 8/4. 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 9/3011:14 pm -
2 stops13h 52m
Deal found 8/4![United Airlines logo]()
$384
This Kiwi.com deal was found by Cheapflights users on 8/4. 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 8/147:06 pm -
3 stops59h 08m
Deal found 8/4![Multiple Airlines logo]()
$406
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 August 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $281 (American Airlines) |
One-way from | $220 (Kiwi.com) |
Popular in | July |
Cheapest in | December |
Average price | $566 |
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 August 8, 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
Cheapest round-trip
SeattlePeoria
SEA Seattle/Tacoma Intl - PIA Greater Peoria
SEAPIA
Seattle/Tacoma Intl
Wed 10/21
6:12 am-4:59 pm
1 stop8h 47m
Greater Peoria
Wed 10/28
7:00 am-2:46 pm
1 stop9h 46m
$281
SeattlePeoria
SEA Seattle/Tacoma Intl - PIA Greater Peoria
SEAPIA
Seattle/Tacoma Intl
Sat 9/5
11:00 pm-10:06 am
1 stop9h 06m
Greater Peoria
Sat 9/12
3:35 pm-10:45 pm
1 stop9h 10m
$339
SeattlePeoria
SEA Seattle/Tacoma Intl - PIA Greater Peoria
SEAPIA
Seattle/Tacoma Intl
Wed 8/26
11:03 am-10:43 pm
2 stops9h 40m
Greater Peoria
Sun 8/30
8:45 am-1:22 pm
1 stop6h 37m
$364
Quickest round-trip
SeattlePeoria
SEA Seattle/Tacoma Intl - PIA Greater Peoria
SEAPIA
Seattle/Tacoma Intl
Sat 10/31
2:30 pm-10:58 pm
1 stop6h 28m
Greater Peoria
Tue 11/3
6:25 am-12:19 pm
1 stop7h 54m
$381
SeattlePeoria
SEA Seattle/Tacoma Intl - PIA Greater Peoria
SEAPIA
Seattle/Tacoma Intl
Sat 9/12
5:10 pm-9:57 am
2 stops14h 47m
Greater Peoria
Wed 9/16
3:35 pm-10:45 pm
1 stop9h 10m
$386
SeattlePeoria
SEA Seattle/Tacoma Intl - PIA Greater Peoria
SEAPIA
Seattle/Tacoma Intl
Wed 9/9
1:57 pm-11:13 pm
1 stop7h 16m
Greater Peoria
Tue 9/15
6:05 am-3:39 pm
2 stops11h 34m
$386
SeattlePeoria
SEA Seattle/Tacoma Intl - PIA Greater Peoria
SEAPIA
Seattle/Tacoma Intl
Wed 10/21
8:30 am-10:58 pm
2 stops12h 28m
Greater Peoria
Wed 10/28
8:15 am-9:39 pm
2 stops15h 24m
$391
SeattlePeoria
SEA Seattle/Tacoma Intl - PIA Greater Peoria
SEAPIA
Seattle/Tacoma Intl
Wed 8/19
11:03 am-8:50 pm
1 stop7h 47m
Greater Peoria
Sun 8/23
5:45 am-2:24 pm
2 stops10h 39m
$405
Cheapest one-way
SeattlePeoria
SEA Seattle/Tacoma Intl - PIA Greater Peoria
SEAPIA
Seattle/Tacoma Intl
Wed 9/30
4:27 pm-1:19 pm
1 stop18h 52m
$220
SeattlePeoria
SEA Seattle/Tacoma Intl - PIA Greater Peoria
SEAPIA
Seattle/Tacoma Intl
Wed 8/19
7:06 pm-5:24 pm
1 stop20h 18m
$249
Showing 1-10 of 14 resultsSorted by cheapest first
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 August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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.
SEA-PIA
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
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 August 8, 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.
Food
6.7
Entertainment
7.1
Overall
7.4
Boarding
7.7
Crew
8.1
Comfort
7.3
Reviews
1 / 20
2.0
MediocreDeb,Jan 2025
MKE - ORD
Food
6.7
Entertainment
7.1
Overall
7.4
Boarding
7.7
Crew
8.1
Comfort
7.3
Reviews
1 / 20
2.0
MediocreDeb,Jan 2025
MKE - ORD
Food
6.7
Entertainment
7.1
Overall
7.4
Boarding
7.7
Crew
8.1
Comfort
7.3
Reviews
1 / 20
2.0
MediocreDeb,Jan 2025
MKE - ORD
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.
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Complete your trip
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Seattle and Peoria flights
Browse other Seattle and Peoria flight options. Last updated on August 8, 2026.
Other flights from Seattle
Browse through other flights departing from Seattle. Flights are based on user searches made on Cheapflights and were last updated on August 8, 2026.
Other flights to Peoria
Explore flights to Peoria departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 8, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 August 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$250 | Average$383 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$273 | Average$448 | FlexibilityNo cancel fee | On-time69% |