HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Diego

$277+ Cheap flights from Springfield, IL to San Diego (SPI - SAN)

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 4/15. Fares are subject to change and may not be available on all flights or dates of travel.
SPI — SAN
Mar 29 — Apr 51
Sun 3/29
Sun 4/5
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Springfield 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 Springfield to San Diego

Cheapest flights from Springfield to San Diego
Explore the most affordable flight options available from Springfield to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 27, 2026.

This American Airlines deal was found by Cheapflights users on 2/24. 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 4/152:49 pm
SPI
-
SAN
1 stop7h 54m
American Airlines
Wed 4/223:09 pm
SAN
-
SPI
1 stop6h 29m
American Airlines
Deal found 2/24$277
This American Airlines deal was found by Cheapflights users on 2/25. 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.
Mon 12/76:00 am
SPI
-
SAN
1 stop8h 30m
American Airlines
Sun 12/136:15 am
SAN
-
SPI
1 stop6h 47m
American Airlines
Deal found 2/25$387
This American Airlines deal was found by Cheapflights users on 2/23. 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 3/105:00 am
SPI
-
SAN
1 stop9h 41m
American Airlines
Sat 3/141:34 pm
SAN
-
SPI
1 stop7h 58m
American Airlines
Deal found 2/23$417
This American Airlines deal was found by Cheapflights users on 2/23. 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.
Sun 4/262:49 pm
SPI
-
SAN
1 stop7h 54m
American Airlines
Sat 5/26:15 am
SAN
-
SPI
1 stop6h 04m
American Airlines
Deal found 2/23$464
This American Airlines deal was found by Cheapflights users on 2/24. 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 3/115:00 am
SPI
-
SAN
1 stop9h 41m
American Airlines
Thu 4/93:09 pm
SAN
-
SPI
1 stop6h 29m
American Airlines
Deal found 2/24$506
This American Airlines deal was found by Cheapflights users on 2/26. 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 3/135:00 am
SPI
-
SAN
2 stops10h 28m
American Airlines
Tue 3/173:19 pm
SAN
-
SPI
1 stop6h 13m
American Airlines
Deal found 2/26$520

Find flight deals from Springfield to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Springfield (SPI) 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 February 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$277
(American Airlines)

Popular in

January

Cheapest in

April

Average price

$522
Provider with most accurate pricing for Springfield Capital-San Diego flight deals.
Search Deals
Provider most trusted by Cheapflights users for Springfield Capital-San Diego flights.
Search Deals
From Springfield Capital to San Diego
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($167 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($46 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Springfield 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 February 27, 2026.
Use the filters below to find and compare flights from Springfield to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SpringfieldSan Diego

SPI - SAN

SPISAN

Springfield Capital

Wed 4/15

2:49 pm-8:43 pm

1 stop7h 54m

San Diego

Wed 4/22

3:09 pm-11:38 pm

1 stop6h 29m

$277

SpringfieldSan Diego

SPI - SAN

SPISAN

Springfield Capital

Tue 3/10

5:00 am-12:41 pm

1 stop9h 41m

San Diego

Sat 3/14

1:34 pm-11:32 pm

1 stop7h 58m

$417

SpringfieldSan Diego

SPI - SAN

SPISAN

Springfield Capital

Wed 3/11

5:00 am-1:28 pm

2 stops10h 28m

San Diego

Thu 4/9

3:09 pm-11:38 pm

1 stop6h 29m

$422

SpringfieldSan Diego

SPI - SAN

SPISAN

Springfield Capital

Fri 3/13

5:00 am-1:28 pm

2 stops10h 28m

San Diego

Tue 3/17

3:19 pm-11:32 pm

1 stop6h 13m

$520

SpringfieldSan Diego

SPI - SAN

SPISAN

Springfield Capital

Sun 4/26

5:45 am-3:45 pm

2 stops12h 00m

San Diego

Sat 5/2

6:15 am-2:19 pm

1 stop6h 04m

$520

SpringfieldSan Diego

SPI - SAN

SPISAN

Springfield Capital

Fri 7/17

2:50 pm-9:55 pm

1 stop9h 05m

San Diego

Sat 7/25

1:09 pm-11:39 pm

1 stop8h 30m

$557

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/24

Sorted by cheapest first

Compare providers for flights from Springfield 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 Springfield to San Diego in February.
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 Springfield, 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 Springfield, Illinois-San Diego flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Springfield, Illinois-San Diego flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Springfield, 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 Springfield, 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 Springfield to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Springfield 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 Springfield to San Diego

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

Currently, November is the cheapest month in which you can book a flight from Springfield, Illinois to San Diego (average of $67). Flying from Springfield, Illinois to San Diego in August is currently the most expensive (average of $209). 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 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 February 27, 2026.
Read through reviews of airlines operating flights from Springfield to San Diego, such as American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
11,357 reviews

Overall

7.2

Food

6.4

Boarding

7.5

Entertainment

6.9

Comfort

7.2

Crew

8.0

Reviews

1 / 20
8.0
Excellent

Diana,Jul 2024

ORD - IND

Shout out to Isabelle and Debbie who went above and beyond to make it a good experience. Wheelchair service and workers were excellent and much appreciated.
American Airlines
7.2
Good
11,357 reviews
American Airlines
7.2
Good
11,357 reviews

Overall

7.2

Food

6.4

Boarding

7.5

Entertainment

6.9

Comfort

7.2

Crew

8.0

Reviews

1 / 20
8.0
Excellent

Diana,Jul 2024

ORD - IND

Shout out to Isabelle and Debbie who went above and beyond to make it a good experience. Wheelchair service and workers were excellent and much appreciated.

Related info for your journey

Find useful and relevant information for your journey from Springfield to San Diego. 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 Springfield, Illinois to San Diego?

    A quick flight from Springfield, Illinois to San Diego can take about 7h 54m. American Airlines provides one of the quickest options available for as low as $277. There are 1601 mi between Springfield, Illinois and San Diego.

  • What is the cheapest airline to fly from Springfield, Illinois to San Diego round-trip?

    Our cheapest airline available from Springfield, Illinois to San Diego is American Airlines. Our recent data shows that you can find tickets from as low as $421 on this airline. American Airlines is currently priced 29% below the average price you’ll pay for this route.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Springfield, Illinois to San Diego (average of $67). Flying from Springfield, Illinois to San Diego in August is currently the most expensive (average of $209). 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

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
Chula Vista
National City
Coronado
La Mesa
Poway
Julian
Lemon Grove

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Springfield to San Diego

See prices for flight routes from nearby airports that may be better suited for you.
O'Hare Intl to Las Vegas flights
O'Hare Intl to Los Angeles flights
O'Hare Intl to San Francisco flights
Midway to Las Vegas flights
O'Hare Intl to San Diego flights
Midway to Los Angeles flights
O'Hare Intl to Ontario flights
O'Hare Intl to Santa Ana flights
St. Louis to Las Vegas flights
O'Hare Intl to Palm Springs flights
O'Hare Intl to Reno flights
St. Louis to Los Angeles flights
Midway to San Francisco flights
O'Hare Intl to Sacramento flights
Rockford to Las Vegas flights
O'Hare Intl to San Jose flights
O'Hare Intl to Burbank flights
Midway to San Diego flights
St. Louis to San Francisco flights
O'Hare Intl to Oakland flights
St. Louis to San Diego flights
Midway to Reno flights
Midway to Palm Springs flights
O'Hare Intl to Santa Barbara flights
St. Louis to Ontario flights
O'Hare Intl to Fresno flights
Midway to Sacramento flights
O'Hare Intl to Long Beach flights
Peoria to Las Vegas flights
Moline to Las Vegas flights
Midway to San Jose flights
St. Louis to Sacramento flights
St. Louis to Santa Ana flights
St. Louis to Reno flights
Midway to Oakland flights
Bloomington to Las Vegas flights
St. Louis to San Jose flights
St. Louis to Oakland flights
Midway to Long Beach flights
Midway to Ontario flights
St. Louis to Long Beach flights
O'Hare Intl to Monterey flights
St. Louis to Burbank flights
Peoria to Los Angeles flights
Moline to Los Angeles flights
Midway to Fresno flights
Evansville to Las Vegas flights
Moline to Santa Ana flights

Top airline flying from Springfield to San Diego

Discover the top airline that operate flights from Springfield 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 February 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$421Average$533FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.