
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $266 (Southwest) |
One-way from | $99 (Southwest) |
Popular in | March |
Cheapest in | October |
Average price | $347 |
Good round-trip deal | $347 or less |
Good one-way deal | $173 or less |
Fly from
Fly to
Route
Depart
Return
ChicagoSan Diego
MDW - SAN
MDWSAN
Chicago Midway
Wed 8/26
8:25 pm-10:35 pm
Nonstop4h 10m
San Diego
Fri 8/28
7:55 am-5:05 pm
2 stops7h 10m
ChicagoSan Diego
MDW - SAN
MDWSAN
Chicago Midway
Wed 8/26
3:05 pm-5:10 pm
Nonstop4h 05m
San Diego
Sun 8/30
10:40 pm-4:30 am
Nonstop3h 50m
St. LouisSan Diego
STL - SAN
STLSAN
Lambert-St Louis
Mon 8/3
7:45 pm-11:50 pm
1 stop6h 05m
San Diego
Sun 8/9
9:30 pm-8:08 am
1 stop8h 38m
St. LouisSan Diego
STL - SAN
STLSAN
Lambert-St Louis
Mon 8/17
2:32 pm-6:06 pm
1 stop5h 34m
San Diego
Fri 8/21
5:01 pm-12:41 am
1 stop5h 40m
MolineSan Diego
MLI - SAN
MLISAN
Moline Quad-City
Wed 9/9
5:00 pm-10:44 pm
1 stop7h 44m
San Diego
Sat 9/12
10:55 am-10:30 pm
1 stop9h 35m
ChicagoSan Diego
ORD - SAN
ORDSAN
Chicago O'Hare Intl
Wed 6/17
6:20 am-8:54 am
Nonstop4h 34m
San Diego
Mon 6/22
5:23 pm-11:36 pm
Nonstop4h 13m
ChicagoSan Diego
ORD - SAN
ORDSAN
Chicago O'Hare Intl
Sat 8/22
12:47 pm-5:46 pm
1 stop6h 59m
San Diego
Sat 9/12
10:40 pm-4:43 am
Nonstop4h 03m
St. LouisSan Diego
STL - SAN
STLSAN
Lambert-St Louis
Fri 7/17
5:59 pm-10:34 pm
1 stop6h 35m
San Diego
Wed 7/22
4:07 pm-11:57 pm
1 stop5h 50m
PeoriaSan Diego
PIA - SAN
PIASAN
Greater Peoria
Tue 7/7
6:58 pm-11:26 pm
1 stop6h 28m
San Diego
Sat 7/11
3:08 pm-11:40 pm
1 stop6h 32m
ChicagoSan Diego
ORD - SAN
ORDSAN
Chicago O'Hare Intl
Thu 6/18
6:00 am-10:08 am
1 stop6h 08m
San Diego
Sun 6/21
10:40 pm-4:49 am
Nonstop4h 09m
Currently, February is the cheapest month in which you can book a flight from Illinois to San Diego (average of $227). Flying from Illinois to San Diego in March is currently the most expensive (average of $405). 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.
A simple way to save on the total cost of your ticket is to fly from Illinois to San Diego in the evening. If you’re flexible enough to do this you can expect to save up to 17% on your trip compared to booking a flight in the morning.
The most flights from USIL to SAN are scheduled on a Monday (52 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (23 on average).
To ensure you get the cheapest price possible for a flight from Illinois to San Diego, you should look to book at least 45 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Travelers seeking maximum savings on their Illinois to San Diego flight should consider departing on Saturday afternoons when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$96 | Average$275 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$138 | Average$237 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$148 | Average$291 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$156 | Average$441 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$157 | Average$391 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$167 | Average$376 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$177 | Average$342 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$186 | Average$324 | FlexibilityNo cancel fee | On-timeN/A |