Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Peoria, Illinois to Seattle from $145

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Peoria, Illinois to Seattle departing on 1/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Peoria, Illinois to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
5:19 pm - 10:47 pmPIA-SEA
7h 28m1 stop
United Airlines Logo
12:25 pm - 8:47 pmSEA-PIA
6h 22m1 stop
$289United Airlines
Find Deal
Mon, Jan 5 - Mon, Jan 12
United Airlines Logo
1:20 pm - 11:12 pmPIA-SEA
11h 52m2 stops
United Airlines Logo
7:00 am - 4:43 pmSEA-PIA
7h 43m1 stop
$294United Airlines
Find Deal
Mon, Jan 5 - Mon, Jan 12
United Airlines Logo
1:20 pm - 9:17 pmPIA-SEA
9h 57m2 stops
United Airlines Logo
9:00 am - 9:39 pmSEA-PIA
10h 39m2 stops
$299United Airlines
Find Deal
Mon, Jan 5 - Wed, Jan 14
United Airlines Logo
5:25 pm - 10:43 pmPIA-SEA
7h 18m1 stop
United Airlines Logo
10:55 am - 9:31 pmSEA-PIA
8h 36m1 stop
$341United Airlines
Find Deal
Sat, Feb 28 - Tue, Mar 3
United Airlines Logo
2:51 pm - 10:43 pmPIA-SEA
9h 52m1 stop
United Airlines Logo
7:29 pm - 10:16 amSEA-PIA
12h 47m2 stops
$346United Airlines
Find Deal
Sat, Feb 28 - Tue, Mar 3
United Airlines Logo
1:25 pm - 11:30 pmPIA-SEA
12h 05m2 stops
United Airlines Logo
7:29 pm - 10:16 amSEA-PIA
12h 47m2 stops
$351United Airlines
Find Deal
Sat, Feb 28 - Tue, Mar 3
United Airlines Logo
5:23 pm - 10:28 pmPIA-SEA
7h 05m1 stop
United Airlines Logo
11:30 pm - 10:16 amSEA-PIA
8h 46m1 stop
$359United Airlines
Find Deal
Thu, Nov 13 - Mon, Nov 17
United Airlines Logo
6:45 am - 4:15 pmPIA-SEA
11h 30m2 stops
United Airlines Logo
10:53 am - 9:31 pmSEA-PIA
8h 38m1 stop
$364United Airlines
Find Deal
Thu, Nov 13 - Mon, Nov 17
American Airlines Logo
6:22 am - 2:54 pmPIA-SEA
10h 32m1 stop
American Airlines Logo
12:14 am - 8:43 amSEA-PIA
6h 29m1 stop
$369American Airlines
Find Deal
Mon, Dec 22 - Sun, Dec 28
American Airlines Logo
4:26 pm - 11:42 pmPIA-SEA
9h 16m1 stop
American Airlines Logo
12:59 am - 9:18 amSEA-PIA
6h 19m1 stop
$404American Airlines
Find Deal
Tue, Nov 11 - Mon, Nov 24

United Airlines flights from Peoria, Illinois to Seattle

Our best United Airlines deals on Peoria, Illinois to Seattle flight tickets
United Airlines
Jan 5
PIA5:19 pmGreater Peoria
7h 28m
1 stop
SEA10:47 pmSeattle/Tacoma Intl
Jan 12
SEA12:25 pmSeattle/Tacoma Intl
6h 22m
1 stop
PIA8:47 pmGreater Peoria
$289
Find similar
United Airlines
Jan 5
PIA1:20 pmGreater Peoria
11h 52m
2 stops
SEA11:12 pmSeattle/Tacoma Intl
Jan 12
SEA7:00 amSeattle/Tacoma Intl
7h 43m
1 stop
PIA4:43 pmGreater Peoria
$294
Find similar
United Airlines
Jan 5
PIA1:20 pmGreater Peoria
9h 57m
2 stops
SEA9:17 pmSeattle/Tacoma Intl
Jan 14
SEA9:00 amSeattle/Tacoma Intl
10h 39m
2 stops
PIA9:39 pmGreater Peoria
$299
Find similar

American Airlines flights from Peoria, Illinois to Seattle

Our best American Airlines deals on Peoria, Illinois to Seattle flight tickets
American Airlines
Dec 22
PIA6:22 amGreater Peoria
10h 32m
1 stop
SEA2:54 pmSeattle/Tacoma Intl
Dec 28
SEA12:14 amSeattle/Tacoma Intl
6h 29m
1 stop
PIA8:43 amGreater Peoria
$369
Find similar
American Airlines
Nov 11
PIA4:26 pmGreater Peoria
9h 16m
1 stop
SEA11:42 pmSeattle/Tacoma Intl
Nov 24
SEA12:59 amSeattle/Tacoma Intl
6h 19m
1 stop
PIA9:18 amGreater Peoria
$404
Find similar
American Airlines
Nov 11
PIA4:26 pmGreater Peoria
9h 16m
1 stop
SEA11:42 pmSeattle/Tacoma Intl
Nov 24
SEA2:46 pmSeattle/Tacoma Intl
7h 03m
1 stop
PIA11:49 pmGreater Peoria
$429
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Peoria, Illinois 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, momondo users made 832,500 searches. Data last updated October 30, 2025.
Use the filters below to find and compare flights from Peoria, Illinois to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PeoriaSeattle

PIA - SEA

PIASEA

Greater Peoria

Mon 1/5

5:19 pm-10:47 pm

1 stop7h 28m

Seattle/Tacoma Intl

Mon 1/12

12:25 pm-8:47 pm

1 stop6h 22m

$289

PeoriaSeattle

PIA - SEA

PIASEA

Greater Peoria

Mon 1/5

1:20 pm-11:12 pm

2 stops11h 52m

Seattle/Tacoma Intl

Mon 1/12

7:00 am-4:43 pm

1 stop7h 43m

$294

PeoriaSeattle

PIA - SEA

PIASEA

Greater Peoria

Mon 1/5

1:20 pm-9:17 pm

2 stops9h 57m

Seattle/Tacoma Intl

Wed 1/14

9:00 am-9:39 pm

2 stops10h 39m

$299

PeoriaSeattle

PIA - SEA

PIASEA

Greater Peoria

Sat 2/28

5:25 pm-10:43 pm

1 stop7h 18m

Seattle/Tacoma Intl

Tue 3/3

10:55 am-9:31 pm

1 stop8h 36m

$341

PeoriaSeattle

PIA - SEA

PIASEA

Greater Peoria

Sat 2/28

2:51 pm-10:43 pm

1 stop9h 52m

Seattle/Tacoma Intl

Tue 3/3

7:29 pm-10:16 am

2 stops12h 47m

$346

PeoriaSeattle

PIA - SEA

PIASEA

Greater Peoria

Sat 2/28

1:25 pm-11:30 pm

2 stops12h 05m

Seattle/Tacoma Intl

Tue 3/3

7:29 pm-10:16 am

2 stops12h 47m

$351

PeoriaSeattle

PIA - SEA

PIASEA

Greater Peoria

Thu 11/13

5:23 pm-10:28 pm

1 stop7h 05m

Seattle/Tacoma Intl

Mon 11/17

11:30 pm-10:16 am

1 stop8h 46m

$359

PeoriaSeattle

PIA - SEA

PIASEA

Greater Peoria

Thu 11/13

6:45 am-4:15 pm

2 stops11h 30m

Seattle/Tacoma Intl

Mon 11/17

10:53 am-9:31 pm

1 stop8h 38m

$364

PeoriaSeattle

PIA - SEA

PIASEA

Greater Peoria

Mon 12/22

6:22 am-2:54 pm

1 stop10h 32m

Seattle/Tacoma Intl

Sun 12/28

12:14 am-8:43 am

1 stop6h 29m

$369

PeoriaSeattle

PIA - SEA

PIASEA

Greater Peoria

Tue 11/11

4:26 pm-11:42 pm

1 stop9h 16m

Seattle/Tacoma Intl

Mon 11/24

12:59 am-9:18 am

1 stop6h 19m

$404

Flights are sorted by cheapest round-trip flights first.

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

See travel insights to Seattle from

How to get the cheapest flight ticket from Peoria, Illinois to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Seattle?

In general, October is the cheapest month to fly from Peoria, Illinois to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $289. If you don’t want to visit Seattle in October, then you should wait until November to fly from Peoria, Illinois, when ticket prices are also cheap, with an average price of $378.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Peoria, Illinois is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $547. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Tuesday is the most expensive day to depart from Peoria, Illinois because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $652.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Peoria, Illinois at noon is the least expensive time of day to depart. momondo users have found prices as low as $525 when looking at flights departing at noon. Flights to Seattle are more costly in the morning, with an average ticket price of $628. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

How have Peoria, Illinois to Seattle flight prices changed over time?

When to book flights from Peoria, Illinois to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Peoria, Illinois to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Peoria, Illinois to Seattle (PIA to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Peoria, Illinois to Seattle

Direct flights

None
There are no direct flights from Peoria, Illinois to Seattle. There are no popular flight routes from Peoria, Illinois to Seattle.
Search flight deals

  • How far is Greater Peoria to Seattle/Tacoma Intl by plane?

    The straight-line distance from Greater Peoria to Seattle/Tacoma Intl is 1677.2 mi. 6h 29m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Greater Peoria Airport to Seattle/Tacoma Intl Airport?

    Prices for flights from Greater Peoria Airport to Seattle/Tacoma Intl Airport were last updated today.

  • How many operators does momondo search for flights from Greater Peoria Airport to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Greater Peoria Airport to Seattle/Tacoma Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Greater Peoria Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Peoria, Illinois to Seattle?

Best airlines flying from Peoria, Illinois to Seattle

Compare and see reviews for airlines that fly from Peoria, Illinois to Seattle with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $269Free CancellationRating
7.4
8,998 reviews
Search United Airlines flights
American AirlinesPriceFrom $288Free CancellationRating
7.2
11,035 reviews
Search American Airlines flights

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Olympia
Lynnwood
Kent
Puyallup
Marysville
Redmond
Tukwila
Federal Way
Lakewood
Cle Elum
Fife
Centralia
Kirkland
Shoreline
Westport

Why use momondo?

Why should I use momondo to find a flight deal from Peoria to Seattle?

Finding the right flight to Seattle from Peoria is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Seattle quick and easy, saving you time and money.

Can I find flights from Peoria to Seattle with flexible booking policies on momondo?

All flight searches from Peoria to Seattle on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Peoria to Seattle?

momondo provides multiple filters to help you find the best flight to Seattle from Peoria. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Peoria to Seattle right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Seattle from Peoria. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Seattle trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 11/29
Sat 12/6
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States