$365+ Cheap flights from San Diego to Peoria, IL (SAN - 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 12/31. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — PIA
Oct 17 — Oct 241
Round-trip
1 adult, Economy
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Find cheap flights from San Diego 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 San Diego to Peoria
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Best
Last-minute
One-way
Cheapest flights from San Diego to PeoriaExplore the most affordable flight options available from San Diego to Peoria. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2026.
Explore the most affordable flight options available from San Diego to Peoria. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2026.
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Thu 12/3111:25 am -
1 stop7h 45m
Wed 1/65:00 am -
1 stop8h 16m
Deal found 9/14![United Airlines logo]()
$365
This American Airlines deal was found by Cheapflights users on 9/15. 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 10/91:12 pm -
1 stop8h 58m
Thu 10/155:30 pm -
1 stop7h 49m
Deal found 9/15![American Airlines logo]()
$379
This American Airlines deal was found by Cheapflights users on 9/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/167:41 am -
1 stop7h 27m
Sun 12/205:19 pm -
1 stop8h 17m
Deal found 9/13![American Airlines logo]()
$400
This American Airlines deal was found by Cheapflights users on 9/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/191:36 pm -
1 stop8h 28m
Sun 11/225:37 pm -
1 stop8h 10m
Deal found 9/14![American Airlines logo]()
$414
This American Airlines deal was found by Cheapflights users on 9/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/296:15 am -
1 stop8h 43m
Sat 10/34:43 pm -
1 stop7h 05m
Deal found 9/14![American Airlines logo]()
$430
This American Airlines deal was found by Cheapflights users on 9/16. 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 10/17:32 am -
1 stop7h 26m
Mon 10/55:33 pm -
1 stop7h 46m
Deal found 9/16![American Airlines logo]()
$449
This American Airlines deal was found by Cheapflights users on 9/16. 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 11/202:18 pm -
1 stop6h 53m
Mon 11/2312:22 pm -
1 stop7h 39m
Deal found 9/16![American Airlines logo]()
$459
Best flights from San Diego to PeoriaDiscover carefully curated flight deals from San Diego to Peoria that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 17, 2026.
Discover carefully curated flight deals from San Diego to Peoria that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 17, 2026.
This American Airlines deal was found by Cheapflights users on 9/15. 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 10/91:12 pm -
1 stop8h 58m
Thu 10/155:30 pm -
1 stop7h 49m
Deal found 9/15![American Airlines logo]()
$379
This United Airlines deal was found by Cheapflights users on 9/16. 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 12/166:50 am -
1 stop9h 08m
Sun 12/206:15 am -
2 stops11h 59m
Deal found 9/16![United Airlines logo]()
$470
This American Airlines deal was found by Cheapflights users on 9/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/167:41 am -
1 stop7h 27m
Sun 12/205:19 pm -
1 stop8h 17m
Deal found 9/13![American Airlines logo]()
$400
This American Airlines deal was found by Cheapflights users on 9/12. 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.
Fri 11/201:05 pm -
2 stops8h 59m
Mon 11/2312:22 pm -
1 stop8h 47m
Deal found 9/12![American Airlines logo]()
$516
Last-minute flights from San Diego to PeoriaDiscover last-minute flight deals from San Diego to Peoria. Data last updated September 17, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to Peoria. Data last updated September 17, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 9/16. 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 9/2512:08 pm -
1 stop9h 07m
Sun 9/275:28 pm -
1 stop7h 57m
Deal found 9/16![American Airlines logo]()
$539
This American Airlines deal was found by Cheapflights users on 9/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/296:15 am -
1 stop8h 43m
Sat 10/34:43 pm -
1 stop7h 05m
Deal found 9/14![American Airlines logo]()
$430
This American Airlines deal was found by Cheapflights users on 9/16. 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 10/17:32 am -
1 stop7h 26m
Mon 10/55:33 pm -
1 stop7h 46m
Deal found 9/16![American Airlines logo]()
$449
This American Airlines deal was found by Cheapflights users on 9/15. 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 10/91:12 pm -
1 stop8h 58m
Thu 10/155:30 pm -
1 stop7h 49m
Deal found 9/15![American Airlines logo]()
$379
One-way flights from San Diego to PeoriaSearch for one-way flight options from San Diego to Peoria. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.
Search for one-way flight options from San Diego to Peoria. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/17. 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 9/279:03 pm -
2 stops39h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Multiple Airlines logo]()
$389
Find flight deals from San Diego to Peoria
Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) 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 September 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $365 (United Airlines) |
Popular in | December |
Cheapest in | November |
Average price | $570 |
Cheapflights Fare Finder
Customize your flight search to find flights from San Diego 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 7,457,451 searches. Data last updated September 17, 2026.
Use the filters below to find and compare flights from San Diego to Peoria that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San DiegoPeoria
SAN San Diego - PIA Greater Peoria
SANPIA
San Diego
Fri 10/9
1:12 pm-12:10 am
1 stop8h 58m
Greater Peoria
Thu 10/15
5:30 pm-11:19 pm
1 stop7h 49m
$379
San DiegoPeoria
SAN San Diego - PIA Greater Peoria
SANPIA
San Diego
Sun 9/27
9:03 pm-2:37 pm
2 stops39h 34m
Greater Peoria
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$389
Quickest round-trip
San DiegoPeoria
SAN San Diego - PIA Greater Peoria
SANPIA
San Diego
Wed 12/16
7:41 am-5:08 pm
1 stop7h 27m
Greater Peoria
Sun 12/20
5:19 pm-11:36 pm
1 stop8h 17m
$400
San DiegoPeoria
SAN San Diego - PIA Greater Peoria
SANPIA
San Diego
Wed 12/16
6:50 am-5:58 pm
1 stop9h 08m
Greater Peoria
Sun 12/20
6:15 am-4:14 pm
2 stops11h 59m
$470
San DiegoPeoria
SAN San Diego - PIA Greater Peoria
SANPIA
San Diego
Fri 11/20
1:05 pm-12:04 am
2 stops8h 59m
Greater Peoria
Mon 11/23
12:22 pm-7:09 pm
1 stop8h 47m
$516
Sorted by cheapest first
Compare providers for flights from San Diego 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 San Diego to Peoria in September.
| 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 San Diego-Peoria, Illinois flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Diego-Peoria, Illinois flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Diego-Peoria, Illinois flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San Diego-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 San Diego-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 San Diego to Peoria
Have a flexible travel schedule? Discover the best time to fly to Peoria from San Diego with our price prediction graph.
SAN-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 San Diego 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 September 17, 2026.
Peruse reviews from past customers who have flown with United Airlines and American Airlines from San Diego 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.
Boarding
7.7
Crew
8.1
Food
6.7
Overall
7.4
Entertainment
7.1
Comfort
7.3
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Boarding
7.7
Crew
8.1
Food
6.7
Overall
7.4
Entertainment
7.1
Comfort
7.3
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Boarding
7.7
Crew
8.1
Food
6.7
Overall
7.4
Entertainment
7.1
Comfort
7.3
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Related info for your journey
Find useful and relevant information for your journey from San Diego 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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San Diego and Peoria flights
Browse other San Diego and Peoria flight options. Last updated on September 17, 2026.
Other flights from San Diego
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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 September 17, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 2 airlines flying from San Diego to Peoria
Discover the top 2 airlines that operate flights from San Diego 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 7,457,451 searches. Data last updated September 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$288 | Average$380 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$334 | Average$549 | FlexibilityNo cancel fee | On-time71% |