$138+ Cheap flights from Peoria, IL to San Diego (PIA - SAN)
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 8/21. Fares are subject to change and may not be available on all flights or dates of travel.
PIA — SAN
sep. 3 — sep. 101
Round-trip
1 adult, Economy
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Find cheap flights from Peoria to San Diego 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 Peoria to San Diego
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Cheapest flights from Peoria to San DiegoExplore the most affordable flight options available from Peoria to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on augustus 4, 2026.
Explore the most affordable flight options available from Peoria to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on augustus 4, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/2. 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.
zo 9/1310:07 am -
1 stop15h 44m
wo 9/165:54 pm -
1 stop22h 49m
Deal found 8/2![Multiple Airlines logo]()
$323
This Kiwi.com deal was found by Cheapflights users on 8/4. 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.
ma 8/318:38 pm -
2 stops25h 37m
za 9/264:54 pm -
1 stop22h 35m
Deal found 8/4![Multiple Airlines logo]()
$324
This Kiwi.com deal was found by Cheapflights users on 8/2. 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.
vr 9/118:52 pm -
1 stop22h 07m
wo 9/165:54 pm -
1 stop22h 49m
Deal found 8/2![Multiple Airlines logo]()
$325
This Kiwi.com deal was found by Cheapflights users on 8/4. 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.
zo 8/3010:07 am -
2 stops39h 37m
za 9/264:54 pm -
1 stop22h 35m
Deal found 8/4![Multiple Airlines logo]()
$330
This American Airlines deal was found by Cheapflights users on 8/2. 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.
za 9/56:47 pm -
1 stop7h 08m
za 9/1212:08 pm -
1 stop9h 07m
Deal found 8/2![American Airlines logo]()
$331
This United Airlines deal was found by Cheapflights users on 8/2. 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.
za 9/58:45 am -
2 stops10h 41m
za 9/122:15 pm -
1 stop6h 58m
Deal found 8/2![United Airlines logo]()
$336
This Kiwi.com deal was found by Cheapflights users on 8/2. 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.
vr 9/118:52 pm -
1 stop22h 07m
zo 9/136:25 am -
1 stop9h 04m
Deal found 8/2![Multiple Airlines logo]()
$341
This United Airlines deal was found by Cheapflights users on 7/31. 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.
di 10/64:05 pm -
1 stop8h 36m
wo 10/142:07 pm -
1 stop6h 51m
Deal found 7/31![United Airlines logo]()
$343
This Kiwi.com deal was found by Cheapflights users on 8/2. 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.
ma 9/78:38 pm -
2 stops14h 27m
do 9/106:25 am -
1 stop8h 54m
Deal found 8/2![Multiple Airlines logo]()
$344
This American Airlines deal was found by Cheapflights users on 8/4. 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.
wo 9/212:20 pm -
1 stop8h 34m
wo 9/231:10 pm -
1 stop8h 58m
Deal found 8/4![American Airlines logo]()
$345
This United Airlines deal was found by Cheapflights users on 8/4. 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.
wo 9/28:29 am -
2 stops10h 31m
wo 9/232:15 pm -
1 stop6h 58m
Deal found 8/4![United Airlines logo]()
$350
Best flights from Peoria to San DiegoDiscover carefully curated flight deals from Peoria to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated augustus 4, 2026.
Discover carefully curated flight deals from Peoria to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated augustus 4, 2026.
This United Airlines deal was found by Cheapflights users on 7/31. 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.
di 10/66:15 am -
1 stop7h 10m
wo 10/1411:00 am -
2 stops9h 58m
Deal found 7/31![United Airlines logo]()
$336
This Trip.com deal was found by Cheapflights users on 7/30. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
do 8/2710:07 am -
1 stop15h 44m
do 9/36:25 am -
1 stop8h 54m
Deal found 7/30![Multiple Airlines logo]()
$351
This United Airlines deal was found by Cheapflights users on 7/31. 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.
vr 8/2810:41 am -
1 stop6h 21m
vr 9/42:15 pm -
1 stop6h 28m
Deal found 7/31![United Airlines logo]()
$359
This United Airlines deal was found by Cheapflights users on 8/3. 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.
vr 10/164:05 pm -
1 stop8h 36m
di 10/206:40 am -
1 stop6h 26m
Deal found 8/3![United Airlines logo]()
$411
This United Airlines deal was found by Cheapflights users on 7/31. 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.
wo 1/61:20 pm -
2 stops9h 48m
za 2/67:41 pm -
2 stops12h 40m
Deal found 7/31![United Airlines logo]()
$441
This United Airlines deal was found by Cheapflights users on 8/3. 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.
di 8/188:45 am -
2 stops10h 41m
za 8/222:15 pm -
1 stop6h 28m
Deal found 8/3![United Airlines logo]()
$443
This United Airlines deal was found by Cheapflights users on 7/31. 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.
za 8/2910:41 am -
2 stops11h 14m
di 9/110:40 am -
1 stop6h 23m
Deal found 7/31![United Airlines logo]()
$450
This United Airlines deal was found by Cheapflights users on 8/2. 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.
ma 10/265:22 pm -
1 stop7h 18m
za 10/316:20 am -
2 stops10h 20m
Deal found 8/2![United Airlines logo]()
$450
This United Airlines deal was found by Cheapflights users on 8/3. 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.
vr 10/2310:43 am -
2 stops11h 25m
wo 10/2812:39 pm -
2 stops8h 19m
Deal found 8/3![United Airlines logo]()
$455
This United Airlines deal was found by Cheapflights users on 8/2. 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.
zo 8/233:35 pm -
1 stop9h 02m
zo 9/62:15 pm -
1 stop6h 28m
Deal found 8/2![United Airlines logo]()
$459
This United Airlines deal was found by Cheapflights users on 8/4. 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.
zo 8/308:45 am -
1 stop8h 05m
vr 9/257:41 pm -
2 stops12h 25m
Deal found 8/4![United Airlines logo]()
$464
Last-minute flights from Peoria to San DiegoDiscover last-minute flight deals from Peoria to San Diego. Data last updated augustus 4, 2026 and is based on user searches.
Discover last-minute flight deals from Peoria to San Diego. Data last updated augustus 4, 2026 and is based on user searches.
This Trip.com deal was found by Cheapflights users on 7/30. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
do 8/2710:07 am -
1 stop15h 44m
do 9/36:25 am -
1 stop8h 54m
Deal found 7/30![Multiple Airlines logo]()
$351
This Kiwi.com deal was found by Cheapflights users on 8/4. 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.
zo 8/3010:07 am -
2 stops39h 37m
za 9/264:54 pm -
1 stop22h 35m
Deal found 8/4![Multiple Airlines logo]()
$330
This Kiwi.com deal was found by Cheapflights users on 8/4. 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.
ma 8/318:38 pm -
2 stops25h 37m
za 9/264:54 pm -
1 stop22h 35m
Deal found 8/4![Multiple Airlines logo]()
$324
This American Airlines deal was found by Cheapflights users on 8/4. 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.
wo 9/212:20 pm -
1 stop8h 34m
wo 9/231:10 pm -
1 stop8h 58m
Deal found 8/4![American Airlines logo]()
$345
This United Airlines deal was found by Cheapflights users on 8/4. 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.
wo 9/28:29 am -
2 stops10h 31m
wo 9/232:15 pm -
1 stop6h 58m
Deal found 8/4![United Airlines logo]()
$350
This American Airlines deal was found by Cheapflights users on 8/2. 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.
za 9/56:47 pm -
1 stop7h 08m
za 9/1212:08 pm -
1 stop9h 07m
Deal found 8/2![American Airlines logo]()
$331
This United Airlines deal was found by Cheapflights users on 8/2. 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.
za 9/58:45 am -
2 stops10h 41m
za 9/122:15 pm -
1 stop6h 58m
Deal found 8/2![United Airlines logo]()
$336
This Kiwi.com deal was found by Cheapflights users on 8/2. 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.
ma 9/78:38 pm -
2 stops14h 27m
do 9/106:25 am -
1 stop8h 54m
Deal found 8/2![Multiple Airlines logo]()
$344
This Kiwi.com deal was found by Cheapflights users on 8/2. 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.
vr 9/118:52 pm -
1 stop22h 07m
wo 9/165:54 pm -
1 stop22h 49m
Deal found 8/2![Multiple Airlines logo]()
$325
This Kiwi.com deal was found by Cheapflights users on 8/2. 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.
vr 9/118:52 pm -
1 stop22h 07m
zo 9/136:25 am -
1 stop9h 04m
Deal found 8/2![Multiple Airlines logo]()
$341
This Kiwi.com deal was found by Cheapflights users on 8/2. 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.
zo 9/1310:07 am -
1 stop15h 44m
wo 9/165:54 pm -
1 stop22h 49m
Deal found 8/2![Multiple Airlines logo]()
$323
One-way flights from Peoria to San DiegoSearch for one-way flight options from Peoria to San Diego. Find affordable one-way fares based on user searches. Data last updated augustus 4, 2026.
Search for one-way flight options from Peoria to San Diego. Find affordable one-way fares based on user searches. Data last updated augustus 4, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/31. 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.
vr 8/217:19 pm -
2 stops26h 56m
Deal found 7/31![Multiple Airlines logo]()
$138
This Kiwi.com deal was found by Cheapflights users on 7/30. 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.
ma 9/145:14 pm -
1 stop25h 45m
Deal found 7/30![Multiple Airlines logo]()
$174
This Kiwi.com deal was found by Cheapflights users on 7/31. 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.
ma 9/78:38 pm -
2 stops42h 15m
Deal found 7/31![Multiple Airlines logo]()
$187
This United Airlines deal was found by Cheapflights users on 7/31. 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.
wo 9/93:35 pm -
1 stop8h 35m
Deal found 7/31![United Airlines logo]()
$216
This Kiwi.com deal was found by Cheapflights users on 7/31. 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.
za 11/289:34 pm -
1 stop23h 46m
Deal found 7/31![Multiple Airlines logo]()
$234
This Kiwi.com deal was found by Cheapflights users on 7/31. 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.
do 9/105:50 pm -
3 stops32h 01m
Deal found 7/31![Multiple Airlines logo]()
$248
This American Airlines deal was found by Cheapflights users on 7/31. 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.
ma 9/76:48 pm -
1 stop16h 10m
Deal found 7/31![American Airlines logo]()
$347
This American Airlines deal was found by Cheapflights users on 8/2. 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.
wo 9/165:28 pm -
1 stop17h 46m
Deal found 8/2![American Airlines logo]()
$358
Find flight deals from Peoria to San Diego
Discover tips and strategies to find the most affordable flight options for your journey from Peoria (PIA) to San Diego (SAN). 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 augustus 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $323 (Kiwi.com) |
One-way from | $138 (Kiwi.com) |
Popular in | December |
Cheapest in | October |
Average price | $334 |
Cheapflights Fare Finder
Customize your flight search to find flights from Peoria to San Diego 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 augustus 4, 2026.
Use the filters below to find and compare flights from Peoria to San Diego that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PeoriaSan Diego
PIA - SAN
PIASAN
Greater Peoria
di 10/6
6:15 am-11:25 am
1 stop7h 10m
San Diego
wo 10/14
11:00 am-10:58 pm
2 stops9h 58m
$336
PeoriaSan Diego
PIA - SAN
PIASAN
Greater Peoria
do 8/27
10:07 am-11:51 pm
1 stop15h 44m
San Diego
do 9/3
6:25 am-5:19 pm
1 stop8h 54m
$351
Quickest round-trip
PeoriaSan Diego
PIA - SAN
PIASAN
Greater Peoria
vr 8/28
10:41 am-3:02 pm
1 stop6h 21m
San Diego
vr 9/4
2:15 pm-10:43 pm
1 stop6h 28m
$359
PeoriaSan Diego
PIA - SAN
PIASAN
Greater Peoria
vr 10/16
4:05 pm-10:41 pm
1 stop8h 36m
San Diego
di 10/20
6:40 am-3:06 pm
1 stop6h 26m
$411
PeoriaSan Diego
PIA - SAN
PIASAN
Greater Peoria
wo 1/6
1:20 pm-9:08 pm
2 stops9h 48m
San Diego
za 2/6
7:41 pm-10:21 am
2 stops12h 40m
$441
PeoriaSan Diego
PIA - SAN
PIASAN
Greater Peoria
di 8/18
8:45 am-5:26 pm
2 stops10h 41m
San Diego
za 8/22
2:15 pm-10:43 pm
1 stop6h 28m
$443
PeoriaSan Diego
PIA - SAN
PIASAN
Greater Peoria
za 8/29
10:41 am-7:55 pm
2 stops11h 14m
San Diego
di 9/1
10:40 am-7:03 pm
1 stop6h 23m
$450
PeoriaSan Diego
PIA - SAN
PIASAN
Greater Peoria
ma 10/26
5:22 pm-10:40 pm
1 stop7h 18m
San Diego
za 10/31
6:20 am-6:40 pm
2 stops10h 20m
$450
PeoriaSan Diego
PIA - SAN
PIASAN
Greater Peoria
vr 10/23
10:43 am-8:08 pm
2 stops11h 25m
San Diego
wo 10/28
12:39 pm-10:58 pm
2 stops8h 19m
$455
PeoriaSan Diego
PIA - SAN
PIASAN
Greater Peoria
zo 8/23
3:35 pm-10:37 pm
1 stop9h 02m
San Diego
zo 9/6
2:15 pm-10:43 pm
1 stop6h 28m
$459
Showing 1-10 of 19 resultsSorted by cheapest first
Compare providers for flights from Peoria to San Diego
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 Peoria to San Diego in August.
| 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 Peoria, Illinois-San Diego flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Peoria, Illinois-San Diego flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Peoria, Illinois-San Diego flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Peoria, Illinois-San Diego 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 Peoria, Illinois-San Diego 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 Peoria to San Diego
Have a flexible travel schedule? Discover the best time to fly to San Diego from Peoria with our price prediction graph.
PIA-SAN
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 Peoria to San Diego
What is the cheapest month to book a flight from Peoria, Illinois to San Diego?
Currently, October is the cheapest month in which you can book a flight from Peoria, Illinois to San Diego (average of $328). Flying from Peoria, Illinois to San Diego in December is currently the most expensive (average of $613). 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.
How much does it cost to fly round-trip from Peoria, Illinois to San Diego?
Airfare is typical for this route at the moment.
Peoria, Illinois to San Diego flights typically cost between $320 and $490 in September.The cheapest round-trip price found within the last 5 days was $323 on Multiple Airlines (Sep 13-Sep 16).
Reviews of airlines servicing San Diego
Get insights into the airlines that provide service to San Diego. 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 San Diego. Reviews last updated augustus 4, 2026.
See what other customers who have flown with United Airlines and American Airlines from Peoria to San Diego have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.1
Food
6.7
Comfort
7.3
Boarding
7.7
Crew
8.1
Overall
7.4
Reviews
1 / 20
4.0
OkaySimon,Jun 2024
LAS - LAX
Entertainment
7.1
Food
6.7
Comfort
7.3
Boarding
7.7
Crew
8.1
Overall
7.4
Reviews
1 / 20
4.0
OkaySimon,Jun 2024
LAS - LAX
Entertainment
7.1
Food
6.7
Comfort
7.3
Boarding
7.7
Crew
8.1
Overall
7.4
Reviews
1 / 20
4.0
OkaySimon,Jun 2024
LAS - LAX
Related info for your journey
Find useful and relevant information for your journey from Peoria to San Diego. 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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Book flights to San Diego if you plan to visit one of these locationsEl Cajon
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Peoria and San Diego flights
Browse other Peoria and San Diego flight options. Last updated on augustus 4, 2026.
Other flights from Peoria
Browse through other flights departing from Peoria. Flights are based on user searches made on Cheapflights and were last updated on augustus 4, 2026.
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Other flights to San Diego
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Top 2 airlines flying from Peoria to San Diego
Discover the top 2 airlines that operate flights from Peoria to San Diego. 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 augustus 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$288 | Average$411 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$288 | Average$454 | FlexibilityNo cancel fee | On-time71% |