$241+ Cheap flights from Peoria, IL to Seattle (PIA - SEA)
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 10/25. Fares are subject to change and may not be available on all flights or dates of travel.
PIA — SEA
Nov 5 — Nov 121
Round-trip
1 adult, Economy
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Find cheap flights from Peoria 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.Cheap flight deals from Peoria to Seattle
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Best
Last-minute
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Cheapest flights from Peoria to SeattleExplore 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 October 6, 2026.
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 October 6, 2026.
This American Airlines deal was found by Cheapflights users on 10/2. 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 12/26:04 pm -
1 stop8h 43m
Mon 12/76:20 am -
1 stop9h 07m
Deal found 10/2![American Airlines logo]()
$340
This United Airlines deal was found by Cheapflights users on 10/2. 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 10/3110:43 am -
2 stops9h 16m
Sat 11/79:05 am -
2 stops10h 01m
Deal found 10/2![United Airlines logo]()
$350
This American Airlines deal was found by Cheapflights users on 10/1. 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 11/64:43 pm -
1 stop8h 59m
Mon 11/93:10 pm -
1 stop6h 53m
Deal found 10/1![American Airlines logo]()
$379
This United Airlines deal was found by Cheapflights users on 10/2. 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 10/176:15 am -
1 stop7h 12m
Wed 10/2111:13 pm -
1 stop8h 53m
Deal found 10/2![United Airlines logo]()
$391
This United Airlines deal was found by Cheapflights users on 10/1. 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 10/2310:43 am -
2 stops11h 54m
Sun 10/252:30 pm -
1 stop6h 43m
Deal found 10/1![United Airlines logo]()
$397
This United Airlines deal was found by Cheapflights users on 10/5. 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.
Thu 10/223:41 pm -
1 stop9h 15m
Tue 10/272:30 pm -
1 stop6h 43m
Deal found 10/5![United Airlines logo]()
$414
This United Airlines deal was found by Cheapflights users on 10/4. 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.
Sat 12/510:45 am -
1 stop7h 33m
Wed 12/97:00 am -
1 stop7h 45m
Deal found 10/4![United Airlines logo]()
$421
Best flights from Peoria to SeattleDiscover carefully curated flight deals from Peoria to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 6, 2026.
Discover carefully curated flight deals from Peoria to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 6, 2026.
This United Airlines deal was found by Cheapflights users on 10/2. 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 10/176:15 am -
1 stop7h 12m
Wed 10/2111:13 pm -
1 stop8h 53m
Deal found 10/2![United Airlines logo]()
$391
This United Airlines deal was found by Cheapflights users on 10/1. 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 10/2310:43 am -
2 stops11h 54m
Sun 10/252:30 pm -
1 stop6h 43m
Deal found 10/1![United Airlines logo]()
$397
This United Airlines deal was found by Cheapflights users on 10/1. 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 1/305:00 am -
1 stop8h 58m
Tue 2/212:30 pm -
1 stop6h 40m
Deal found 10/1![United Airlines logo]()
$421
This United Airlines deal was found by Cheapflights users on 10/5. 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 12/510:45 am -
1 stop7h 33m
Wed 12/97:00 am -
1 stop7h 45m
Deal found 10/5![United Airlines logo]()
$421
Last-minute flights from Peoria to SeattleDiscover last-minute flight deals from Peoria to Seattle. Data last updated October 6, 2026 and is based on user searches.
Discover last-minute flight deals from Peoria to Seattle. Data last updated October 6, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 10/2. 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 10/176:15 am -
1 stop7h 12m
Wed 10/2111:13 pm -
1 stop8h 53m
Deal found 10/2![United Airlines logo]()
$391
This United Airlines deal was found by Cheapflights users on 10/5. 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.
Thu 10/223:41 pm -
1 stop9h 15m
Tue 10/272:30 pm -
1 stop6h 43m
Deal found 10/5![United Airlines logo]()
$414
This United Airlines deal was found by Cheapflights users on 10/1. 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 10/2310:43 am -
2 stops11h 54m
Sun 10/252:30 pm -
1 stop6h 43m
Deal found 10/1![United Airlines logo]()
$397
This American Airlines deal was found by Cheapflights users on 10/2. 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 10/316:54 am -
1 stop9h 52m
Sat 11/76:14 am -
1 stop8h 53m
Deal found 10/2![American Airlines logo]()
$340
This United Airlines deal was found by Cheapflights users on 10/2. 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 10/3110:43 am -
2 stops9h 16m
Sat 11/79:05 am -
2 stops10h 01m
Deal found 10/2![United Airlines logo]()
$350
This American Airlines deal was found by Cheapflights users on 10/1. 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 11/64:43 pm -
1 stop8h 59m
Mon 11/93:10 pm -
1 stop6h 53m
Deal found 10/1![American Airlines logo]()
$379
This United Airlines deal was found by Cheapflights users on 10/1. 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 11/255:30 pm -
1 stop7h 37m
Sat 11/287:00 am -
1 stop9h 20m
Deal found 10/1![United Airlines logo]()
$491
One-way flights from Peoria to SeattleSearch for one-way flight options from Peoria to Seattle. Find affordable one-way fares based on user searches. Data last updated October 6, 2026.
Search for one-way flight options from Peoria to Seattle. Find affordable one-way fares based on user searches. Data last updated October 6, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/5. 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.
Sun 10/252:37 pm -
2 stops31h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/5![Multiple Airlines logo]()
$241
This Kiwi.com deal was found by Cheapflights users on 10/2. 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 11/1912:24 pm -
2 stops50h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/2![Multiple Airlines logo]()
$316
This Kiwi.com deal was found by Cheapflights users on 10/1. 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.
Sun 12/279:13 pm -
1 stop24h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![Multiple Airlines logo]()
$451
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 October 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $340 (American Airlines) |
One-way from | $316 (Kiwi.com) |
Popular in | January |
Cheapest in | February |
Average price | $378 |
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 7,457,451 searches. Data last updated October 6, 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
Cheapest round-trip
PeoriaSeattle
PIA Greater Peoria - SEA Seattle/Tacoma Intl
PIASEA
Greater Peoria
Thu 11/19
12:24 pm-12:37 pm
2 stops50h 13m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$316
PeoriaSeattle
PIA Greater Peoria - SEA Seattle/Tacoma Intl
PIASEA
Greater Peoria
Sat 10/17
6:15 am-11:27 am
1 stop7h 12m
Seattle/Tacoma Intl
Wed 10/21
11:13 pm-10:06 am
1 stop8h 53m
$391
PeoriaSeattle
PIA Greater Peoria - SEA Seattle/Tacoma Intl
PIASEA
Greater Peoria
Fri 10/23
10:43 am-8:37 pm
2 stops11h 54m
Seattle/Tacoma Intl
Sun 10/25
2:30 pm-11:13 pm
1 stop6h 43m
$397
PeoriaSeattle
PIA Greater Peoria - SEA Seattle/Tacoma Intl
PIASEA
Greater Peoria
Sat 1/30
5:00 am-11:58 am
1 stop8h 58m
Seattle/Tacoma Intl
Tue 2/2
12:30 pm-9:10 pm
1 stop6h 40m
$421
PeoriaSeattle
PIA Greater Peoria - SEA Seattle/Tacoma Intl
PIASEA
Greater Peoria
Sat 12/5
10:45 am-4:18 pm
1 stop7h 33m
Seattle/Tacoma Intl
Wed 12/9
7:00 am-4:45 pm
1 stop7h 45m
$421
Quickest round-trip
PeoriaSeattle
PIA Greater Peoria - SEA Seattle/Tacoma Intl
PIASEA
Greater Peoria
Mon 10/12
8:30 am-3:51 pm
1 stop9h 21m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$609
PeoriaSeattle
PIA Greater Peoria - SEA Seattle/Tacoma Intl
PIASEA
Greater Peoria
Sun 12/27
9:13 pm-5:34 pm
2 stops22h 21m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$613
Sorted by cheapest first
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 October.
| 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 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.
PIA-SEA
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 January is currently the most expensive (average of $704). 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?
Airfare is typical for this route at the moment.
Peoria, Illinois to Seattle flights typically cost between $309 and $520 in December.The cheapest round-trip price found within the last 5 days was $340 on American Airlines (Dec 2-Dec 7).
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 October 6, 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.
Comfort
7.3
Food
6.7
Boarding
7.7
Crew
8.1
Overall
7.4
Entertainment
7.1
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Comfort
7.3
Food
6.7
Boarding
7.7
Crew
8.1
Overall
7.4
Entertainment
7.1
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Comfort
7.3
Food
6.7
Boarding
7.7
Crew
8.1
Overall
7.4
Entertainment
7.1
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
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.
Traveling to a place near Seattle?
Book flights to Seattle if you plan to visit one of these locationsSeaTac
Renton
Tacoma
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Leavenworth
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Snoqualmie
Puyallup
Lynnwood
Centralia
Kent
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Peoria and Seattle flights
Browse other Peoria and Seattle flight options. Last updated on October 6, 2026.
Other flights from Peoria
Browse through other flights departing from Peoria. Flights are based on user searches made on Cheapflights and were last updated on October 6, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Seattle
Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 6, 2026.
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 7,457,451 searches. Data last updated October 6, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$270 | Average$448 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$308 | Average$540 | FlexibilityNo cancel fee | On-time69% |