HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Peoria

$242+ Cheap flights from Boston to Peoria, IL (BOS - 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 7/28. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — PIA
Jul 19 — Jul 261
Sat 7/19
Sat 7/26
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Boston to Peoria 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 Boston to Peoria

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) 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 July 14, 2025.

Round-trip from

$242
(Mytrip)

Popular in

December

Cheapest in

July

Average price

$258
From Boston Logan Intl to Greater Peoria
Search Deals
Highest demand for flights based on searches. 41% potential increase in price ($405 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease ($49 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

Find flight deals from Boston to Peoria

Cheapest flights from Boston to Peoria
Explore the most affordable flight options available from Boston to Peoria. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 14, 2025.

This Mytrip deal was found by Cheapflights users on 7/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/289:32 amBOS - PIA
1 stop6h 26mMultiple Airlines
Fri 8/19:06 pmPIA - BOS
2 stops25h 42mMultiple Airlines
Deal found 7/13$242
This American Airlines deal was found by Cheapflights users on 7/12. 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 8/216:43 pmBOS - PIA
1 stop6h 16mAmerican Airlines
Tue 8/2610:07 amPIA - BOS
1 stop4h 12mAmerican Airlines
Deal found 7/12$259
This United Airlines deal was found by Cheapflights users on 7/14. 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.
Tue 9/26:16 pmBOS - PIA
1 stop4h 59mUnited Airlines
Tue 9/910:49 amPIA - BOS
1 stop5h 57mUnited Airlines
Deal found 7/14$329

Cheapflights Fare Finder

Customize your flight search to find flights from Boston 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 July 14, 2025.
Use the filters below to find and compare flights from Boston to Peoria that are best for you.

Fly from

Boston

Fly to

Peoria

Route

Depart

Return

Price

BostonPeoria

BOS - PIA

BOSPIA

Boston Logan Intl

Mon 7/28

9:32 am-2:58 pm

1 stop6h 26m

Greater Peoria

Fri 8/1

9:06 pm-11:48 pm

2 stops25h 42m

$242

BostonPeoria

BOS - PIA

BOSPIA

Boston Logan Intl

Thu 8/21

6:43 pm-11:59 pm

1 stop6h 16m

Greater Peoria

Tue 8/26

10:07 am-3:19 pm

1 stop4h 12m

$259

BostonPeoria

BOS - PIA

BOSPIA

Boston Logan Intl

Tue 9/2

6:16 pm-10:15 pm

1 stop4h 59m

Greater Peoria

Tue 9/9

10:49 am-5:46 pm

1 stop5h 57m

$329

BostonPeoria

BOS - PIA

BOSPIA

Boston Logan Intl

Sat 9/27

12:35 pm-4:43 pm

1 stop5h 08m

$252

BostonPeoria

BOS - PIA

BOSPIA

Boston Logan Intl

Sun 8/3

5:00 am-9:40 am

1 stop5h 40m

$258

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/13

Best time to book a flight from Boston to Peoria

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

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

Currently, August is the cheapest month in which you can book a flight from Boston to Peoria, Illinois (average of $318). Flying from Boston to Peoria, Illinois in October is currently the most expensive (average of $428). 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.

What is the cheapest time of day to fly from BOS to PIA?

Find hourly flight availability from Boston to Peoria. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 14, 2025.

It’s optimal to fly from Boston to Peoria, Illinois in the afternoon. By choosing this option you can save up to 40% on the cost of your flight, compared to a flight in the morning.

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 July 14, 2025.
Read through reviews of airlines operating flights from Boston to Peoria, such as United Airlines and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,856 reviews

Food

6.6

Entertainment

7.0

Crew

8.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,856 reviews
United Airlines
7.4
Good
8,856 reviews

Food

6.6

Entertainment

7.0

Crew

8.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,856 reviews

Food

6.6

Entertainment

7.0

Crew

8.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

Find useful and relevant information for your journey from Boston to Peoria. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    Flying on American Airlines is currently your cheapest option to Peoria, Illinois, with prices starting at $259. Another option worth looking into is United Airlines, starting at $329 round trip. These flights start at 54% lower than the current average price 3 months from now.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Boston to Peoria, Illinois (average of $318). Flying from Boston to Peoria, Illinois in October is currently the most expensive (average of $428). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Boston to Peoria

See prices for flight routes from nearby airports that may be better suited for you.
Boston to O'Hare Intl flights
Boston to Midway flights
Hartford to O'Hare Intl flights
Boston to St. Louis flights
Albany to O'Hare Intl flights
Hartford to Midway flights
Albany to Midway flights
Hartford to St. Louis flights
Albany to St. Louis flights
Hartford to Moline flights
Worcester to O'Hare Intl flights
Boston to Rockford flights
West Tisbury to O'Hare Intl flights
Boston to Moline flights
Boston to Springfield flights
Nantucket to O'Hare Intl flights
Hyannis to O'Hare Intl flights
Hartford to Evansville flights
Hartford to Peoria flights
Boston to Bloomington flights
Hartford to Rockford flights
Boston to Evansville flights
West Tisbury to St. Louis flights
Albany to Peoria flights
Provincetown to O'Hare Intl flights
Hartford to Bloomington flights
Albany to Moline flights
Boston to Dubuque flights
Boston to Champaign flights
Boston to Paducah flights
Albany to Evansville flights
Boston to Burlington flights
New Bedford to O'Hare Intl flights
Boston to Decatur flights
Hartford to Springfield flights
Albany to Springfield flights
Albany to Champaign flights

Top 2 airlines flying from Boston to Peoria

Discover the top 2 airlines that operate flights from Boston 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 July 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$258Average$396FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$311Average$804FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.