$309+ Cheap flights from Boston to Peoria, IL (BOS - 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 9/20. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — PIA
Sep 9 — Sep 161
Round-trip
1 adult, Economy
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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
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Cheapest flights from Boston to PeoriaExplore 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 August 10, 2026.
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 August 10, 2026.
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/177:17 pm -
1 stop5h 51m
Mon 9/216:00 am -
1 stop5h 39m
Deal found 8/6![American Airlines logo]()
$329
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.
Tue 9/15:45 pm -
1 stop7h 14m
Tue 9/86:00 am -
2 stops9h 42m
Deal found 8/8![American Airlines logo]()
$334
This United Airlines deal was found by Cheapflights users on 8/10. 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 8/256:00 am -
1 stop5h 06m
Sat 8/295:45 am -
1 stop7h 22m
Deal found 8/10![United Airlines logo]()
$379
This American Airlines deal was found by Cheapflights users on 8/10. 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 8/255:22 pm -
2 stops7h 37m
Sat 8/293:02 pm -
2 stops6h 48m
Deal found 8/10![American Airlines logo]()
$389
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 10/76:00 pm -
2 stops7h 10m
Sun 10/115:30 pm -
1 stop5h 06m
Deal found 8/8![American Airlines logo]()
$394
This United Airlines deal was found by Cheapflights users on 8/10. 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 9/56:00 am -
2 stops10h 00m
Fri 9/116:39 pm -
1 stop5h 31m
Deal found 8/10![United Airlines logo]()
$414
Best flights from Boston to PeoriaDiscover carefully curated flight deals from Boston to Peoria that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 10, 2026.
Discover carefully curated flight deals from Boston to Peoria that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 10, 2026.
This United Airlines deal was found by Cheapflights users on 8/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/226:00 am -
1 stop5h 06m
Sun 10/255:22 pm -
1 stop6h 24m
Deal found 8/9![United Airlines logo]()
$329
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 10/76:00 pm -
2 stops7h 10m
Sun 10/115:30 pm -
1 stop5h 06m
Deal found 8/8![American Airlines logo]()
$394
This United Airlines deal was found by Cheapflights users on 8/10. 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 8/256:00 am -
1 stop5h 06m
Sat 8/295:45 am -
1 stop7h 22m
Deal found 8/10![United Airlines logo]()
$379
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 9/11:01 pm -
1 stop6h 15m
Tue 9/86:34 am -
1 stop7h 14m
Deal found 8/5![American Airlines logo]()
$409
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.
Fri 9/46:01 am -
1 stop5h 05m
Mon 9/75:45 am -
1 stop6h 05m
Deal found 8/5![United Airlines logo]()
$384
This United Airlines deal was found by Cheapflights users on 8/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/610:38 am -
1 stop5h 22m
Sat 9/126:39 pm -
1 stop5h 31m
Deal found 8/9![United Airlines logo]()
$409
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 9/59:00 am -
1 stop7h 00m
Sat 9/126:39 pm -
1 stop4h 58m
Deal found 8/7![United Airlines logo]()
$409
This United Airlines deal was found by Cheapflights users on 8/10. 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 9/56:00 am -
2 stops10h 00m
Fri 9/116:39 pm -
1 stop5h 31m
Deal found 8/10![United Airlines logo]()
$414
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.
Wed 10/78:00 am -
1 stop8h 06m
Sun 10/116:15 am -
1 stop5h 33m
Deal found 8/5![United Airlines logo]()
$441
Last-minute flights from Boston to PeoriaDiscover last-minute flight deals from Boston to Peoria. Data last updated August 10, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to Peoria. Data last updated August 10, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 8/10. 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 8/256:00 am -
1 stop5h 06m
Sat 8/295:45 am -
1 stop7h 22m
Deal found 8/10![United Airlines logo]()
$379
This American Airlines deal was found by Cheapflights users on 8/10. 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 8/255:22 pm -
2 stops7h 37m
Sat 8/293:02 pm -
2 stops6h 48m
Deal found 8/10![American Airlines logo]()
$389
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.
Tue 9/15:45 pm -
1 stop7h 14m
Tue 9/86:00 am -
2 stops9h 42m
Deal found 8/8![American Airlines logo]()
$334
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.
Tue 9/111:00 am -
3 stops12h 43m
Tue 9/86:05 am -
2 stops7h 45m
Deal found 8/5![United Airlines logo]()
$450
This United Airlines deal was found by Cheapflights users on 8/10. 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 9/56:00 am -
2 stops10h 00m
Fri 9/116:39 pm -
1 stop5h 31m
Deal found 8/10![United Airlines logo]()
$414
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 9/55:45 am -
2 stops10h 15m
Sat 9/126:05 am -
2 stops7h 17m
Deal found 8/7![United Airlines logo]()
$419
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/177:17 pm -
1 stop5h 51m
Mon 9/216:00 am -
1 stop5h 39m
Deal found 8/6![American Airlines logo]()
$329
One-way flights from Boston to PeoriaSearch for one-way flight options from Boston to Peoria. Find affordable one-way fares based on user searches. Data last updated August 10, 2026.
Search for one-way flight options from Boston to Peoria. Find affordable one-way fares based on user searches. Data last updated August 10, 2026.
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.
Thu 9/35:01 pm -
1 stop6h 42m
Deal found 8/6![United Airlines logo]()
$309
This United Airlines deal was found by Cheapflights users on 8/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/205:45 am -
2 stops8h 54m
Deal found 8/9![United Airlines logo]()
$314
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/912:07 pm -
2 stops22h 59m
Deal found 8/8![Allegiant Air logo]()
$349
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.
Fri 10/94:49 pm -
1 stop8h 07m
Deal found 8/8![American Airlines logo]()
$380
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.
Thu 9/312:45 pm -
2 stops31h 54m
Deal found 8/6![Multiple Airlines logo]()
$386
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/91:00 pm -
3 stops50h 14m
Deal found 8/8![Multiple Airlines logo]()
$394
Find 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 August 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $329 (American Airlines) |
One-way from | $309 (United Airlines) |
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 August 10, 2026.
Use the filters below to find and compare flights from Boston to Peoria that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BostonPeoria
BOS Boston Logan Intl - PIA Greater Peoria
BOSPIA
Boston Logan Intl
Thu 10/22
6:00 am-10:06 am
1 stop5h 06m
Greater Peoria
Sun 10/25
5:22 pm-12:46 am
1 stop6h 24m
$329
BostonPeoria
BOS Boston Logan Intl - PIA Greater Peoria
BOSPIA
Boston Logan Intl
Tue 8/25
6:00 am-10:06 am
1 stop5h 06m
Greater Peoria
Sat 8/29
5:45 am-2:07 pm
1 stop7h 22m
$379
BostonPeoria
BOS Boston Logan Intl - PIA Greater Peoria
BOSPIA
Boston Logan Intl
Fri 9/4
6:01 am-10:06 am
1 stop5h 05m
Greater Peoria
Mon 9/7
5:45 am-12:50 pm
1 stop6h 05m
$384
BostonPeoria
BOS Boston Logan Intl - PIA Greater Peoria
BOSPIA
Boston Logan Intl
Wed 10/7
6:00 pm-12:10 am
2 stops7h 10m
Greater Peoria
Sun 10/11
5:30 pm-11:36 pm
1 stop5h 06m
$394
BostonPeoria
BOS Boston Logan Intl - PIA Greater Peoria
BOSPIA
Boston Logan Intl
Tue 9/1
1:01 pm-6:16 pm
1 stop6h 15m
Greater Peoria
Tue 9/8
6:34 am-2:48 pm
1 stop7h 14m
$409
Quickest round-trip
BostonPeoria
BOS Boston Logan Intl - PIA Greater Peoria
BOSPIA
Boston Logan Intl
Sun 9/6
10:38 am-3:00 pm
1 stop5h 22m
Greater Peoria
Sat 9/12
6:39 pm-1:10 am
1 stop5h 31m
$409
BostonPeoria
BOS Boston Logan Intl - PIA Greater Peoria
BOSPIA
Boston Logan Intl
Sat 9/5
9:00 am-3:00 pm
1 stop7h 00m
Greater Peoria
Sat 9/12
6:39 pm-12:37 am
1 stop4h 58m
$409
BostonPeoria
BOS Boston Logan Intl - PIA Greater Peoria
BOSPIA
Boston Logan Intl
Sat 9/5
6:00 am-3:00 pm
2 stops10h 00m
Greater Peoria
Fri 9/11
6:39 pm-1:10 am
1 stop5h 31m
$414
BostonPeoria
BOS Boston Logan Intl - PIA Greater Peoria
BOSPIA
Boston Logan Intl
Wed 10/7
8:00 am-3:06 pm
1 stop8h 06m
Greater Peoria
Sun 10/11
6:15 am-12:48 pm
1 stop5h 33m
$441
Cheapest one-way
Quickest one-way
BostonPeoria
BOS Boston Logan Intl - PIA Greater Peoria
BOSPIA
Boston Logan Intl
Sun 9/20
6:00 am-9:57 am
1 stop4h 57m
$309
Showing 1-10 of 15 resultsSorted by cheapest first
Compare providers for flights from Boston 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 Boston to Peoria in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Boston-Peoria, Illinois flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-Peoria, Illinois flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boston-Peoria, Illinois flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Boston-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 Boston-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 Boston to Peoria
Have a flexible travel schedule? Discover the best time to fly to Peoria from Boston with our price prediction graph.
BOS-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.
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 10, 2026.
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.
Overall
7.4
Entertainment
7.1
Boarding
7.7
Food
6.7
Comfort
7.3
Crew
8.1
Reviews
1 / 20
4.0
OkayKevin,Dec 2025
BOS - EWR
Overall
7.4
Entertainment
7.1
Boarding
7.7
Food
6.7
Comfort
7.3
Crew
8.1
Reviews
1 / 20
4.0
OkayKevin,Dec 2025
BOS - EWR
Overall
7.4
Entertainment
7.1
Boarding
7.7
Food
6.7
Comfort
7.3
Crew
8.1
Reviews
1 / 20
4.0
OkayKevin,Dec 2025
BOS - EWR
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.
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Complete your trip
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Boston and Peoria flights
Browse other Boston and Peoria flight options. Last updated on August 10, 2026.
Other flights from Boston
Browse through other flights departing from Boston. Flights are based on user searches made on Cheapflights and were last updated on August 10, 2026.
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Explore flights to Peoria departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 10, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 August 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$194 | Average$273 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$258 | Average$408 | FlexibilityNo cancel fee | On-time69% |