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Peoria

$190+ Cheap flights from San Diego to Peoria, IL (SAN - 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 3/25. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — PIA
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from San Diego to Peoria

Cheapest flights from San Diego to Peoria
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 January 29, 2026.

This United Airlines deal was found by Cheapflights users on 1/28. 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 6/510:40 pm
SAN
-
PIA
1 stop9h 21m
United Airlines
Mon 6/85:38 pm
PIA
-
SAN
1 stop6h 56m
United Airlines
Deal found 1/28$309
This United Airlines deal was found by Cheapflights users on 1/27. 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 2/1111:10 am
SAN
-
PIA
1 stop7h 37m
United Airlines
Sun 2/155:45 pm
PIA
-
SAN
1 stop6h 59m
United Airlines
Deal found 1/27$359
This United Airlines deal was found by Cheapflights users on 1/29. 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.
Mon 6/810:40 pm
SAN
-
PIA
1 stop9h 21m
United Airlines
Tue 6/165:38 pm
PIA
-
SAN
1 stop6h 56m
United Airlines
Deal found 1/29$399
This American Airlines deal was found by Cheapflights users on 1/27. 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 1/271:19 pm
SAN
-
PIA
1 stop6h 24m
American Airlines
Fri 2/2710:01 am
PIA
-
SAN
1 stop6h 28m
American Airlines
Deal found 1/27$400
This United Airlines deal was found by Cheapflights users on 1/29. 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.
Mon 6/88:32 pm
SAN
-
PIA
2 stops11h 29m
United Airlines
Thu 6/185:38 pm
PIA
-
SAN
1 stop6h 56m
United Airlines
Deal found 1/29$404
This United Airlines deal was found by Cheapflights users on 1/27. 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 1/2711:10 am
SAN
-
PIA
1 stop7h 37m
United Airlines
Fri 2/272:51 pm
PIA
-
SAN
2 stops10h 49m
United Airlines
Deal found 1/27$405
This United Airlines deal was found by Cheapflights users on 1/29. 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 6/1110:40 pm
SAN
-
PIA
1 stop9h 21m
United Airlines
Mon 6/152:39 pm
PIA
-
SAN
1 stop9h 55m
United Airlines
Deal found 1/29$408
This United Airlines deal was found by Cheapflights users on 1/28. 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 2/186:10 pm
SAN
-
PIA
2 stops14h 01m
United Airlines
Sat 2/211:25 pm
PIA
-
SAN
2 stops10h 35m
United Airlines
Deal found 1/28$409

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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$309
(United Airlines)

One-way from

$190
(Kiwi.com)

Popular in

December

Cheapest in

November

Average price

$376
Provider with most accurate pricing for San Diego-Greater Peoria flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Diego-Greater Peoria flights.
Search Deals
From San Diego to Greater Peoria
Search Deals
One-way flight from San Diego to Greater Peoria
Search Deals
High demand for flights, 1% potential price rise
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 2,558,603 searches. Data last updated January 29, 2026.
Use the filters below to find and compare flights from San Diego to Peoria that are best for you.

Fly from

San Diego

Fly to

Peoria

Route

Depart

Return

Price

San DiegoPeoria

SAN - PIA

SANPIA

San Diego

Fri 6/5

10:40 pm-10:01 am

1 stop9h 21m

Greater Peoria

Mon 6/8

5:38 pm-10:34 pm

1 stop6h 56m

$309

San DiegoPeoria

SAN - PIA

SANPIA

San Diego

Wed 2/11

11:08 am-8:47 pm

2 stops7h 39m

Greater Peoria

Sun 2/15

5:45 pm-10:44 pm

1 stop6h 59m

$364

San DiegoPeoria

SAN - PIA

SANPIA

San Diego

Sat 6/13

10:40 pm-10:01 am

1 stop9h 21m

Greater Peoria

Wed 6/17

5:38 pm-10:34 pm

1 stop6h 56m

$399

San DiegoPeoria

SAN - PIA

SANPIA

San Diego

Sat 6/13

10:40 pm-10:01 am

1 stop9h 21m

Greater Peoria

Tue 6/16

5:38 pm-10:34 pm

1 stop6h 56m

$399

San DiegoPeoria

SAN - PIA

SANPIA

San Diego

Tue 6/9

10:40 pm-10:01 am

1 stop9h 21m

Greater Peoria

Wed 6/17

5:38 pm-10:34 pm

1 stop6h 56m

$399

San DiegoPeoria

SAN - PIA

SANPIA

San Diego

Fri 6/12

10:40 pm-10:01 am

1 stop9h 21m

Greater Peoria

Sat 6/13

5:38 pm-10:34 pm

1 stop6h 56m

$399

San DiegoPeoria

SAN - PIA

SANPIA

San Diego

Fri 6/12

10:40 pm-10:01 am

1 stop9h 21m

Greater Peoria

Thu 6/18

5:38 pm-10:34 pm

1 stop6h 56m

$399

San DiegoPeoria

SAN - PIA

SANPIA

San Diego

Mon 6/8

10:40 pm-10:01 am

1 stop9h 21m

Greater Peoria

Thu 6/18

5:38 pm-10:34 pm

1 stop6h 56m

$399

San DiegoPeoria

SAN - PIA

SANPIA

San Diego

Mon 6/8

10:40 pm-10:01 am

1 stop9h 21m

Greater Peoria

Sat 6/13

5:38 pm-10:34 pm

1 stop6h 56m

$399

San DiegoPeoria

SAN - PIA

SANPIA

San Diego

Wed 3/25

2:50 pm-11:27 am

1 stop18h 37m

$190

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 12 results
1
2

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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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.
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

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

Currently, August is the cheapest month in which you can book a flight from San Diego to Peoria, Illinois (average of $173). Flying from San Diego to Peoria, Illinois in January is currently the most expensive (average of $349). 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.

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 January 29, 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.
United Airlines
7.4
Good
9,214 reviews

Crew

8.1

Overall

7.4

Boarding

7.7

Food

6.6

Comfort

7.3

Entertainment

7.1

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
9,214 reviews
United Airlines
7.4
Good
9,214 reviews

Crew

8.1

Overall

7.4

Boarding

7.7

Food

6.6

Comfort

7.3

Entertainment

7.1

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
11,205 reviews
United Airlines
7.4
Good
9,214 reviews

Crew

8.1

Overall

7.4

Boarding

7.7

Food

6.6

Comfort

7.3

Entertainment

7.1

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 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.

  • How long is the flight from San Diego to Peoria, Illinois?

    United Airlines can get you from San Diego to Peoria, Illinois in just under 9h 21m. Your travel time can differ by up to . San Diego and Peoria, Illinois are separated by a distance of 1610 mi.

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

    Our cheapest airline available from San Diego to Peoria, Illinois is American Airlines. Our recent data shows that you can find tickets from as low as $288 on this airline. An additional option worth looking into is United Airlines, starting at $288. You may be able to fly from San Diego to Peoria, Illinois for 31% less than the average price by searching for these airlines.

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

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

  • How can I find direct flights from San Diego to Peoria?

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

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

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

    Currently, August is the cheapest month in which you can book a flight from San Diego to Peoria, Illinois (average of $173). Flying from San Diego to Peoria, Illinois in January is currently the most expensive (average of $349). 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

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Alternative routes for San Diego to Peoria

See prices for flight routes from nearby airports that may be better suited for you.
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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 2,558,603 searches. Data last updated January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$288Average$504FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$288Average$463FlexibilityNo cancel feeOn-time71%

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