$255 Cheap Flights from San Diego (SAN) to Quincy (UIN)

View $255 flight on Tue, Feb 10, 2026Opens in a new window

Popular airlines from San Diego Intl. Airport (SAN) to Quincy, IL (UIN-Quincy Regional-Baldwin Field)

Cheap Flights from San Diego to Quincy (SAN-UIN)

Prices were available within the past 7 days and start at $255 for one-way flights and $565 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Sat, Oct 4 - Thu, Oct 9
SAN
San Diego
UIN
Quincy
$565 Roundtrip, found 4 days ago
$565
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sat, Oct 4 from San Diego to Quincy, returning Thu, Oct 9, priced at $565 found 4 days ago
Alaska Airlines
Sat, Oct 4 - Wed, Oct 8
SAN
San Diego
UIN
Quincy
$585 Roundtrip, found 4 days ago
$585
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sat, Oct 4 from San Diego to Quincy, returning Wed, Oct 8, priced at $585 found 4 days ago
Alaska Airlines
Tue, Oct 7 - Sat, Oct 11
SAN
San Diego
UIN
Quincy
$590 Roundtrip, found 2 days ago
$590
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Tue, Oct 7 from San Diego to Quincy, returning Sat, Oct 11, priced at $590 found 2 days ago
Alaska Airlines
Sat, Oct 4 - Tue, Oct 7
SAN
San Diego
UIN
Quincy
$600 Roundtrip, found 4 days ago
$600
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sat, Oct 4 from San Diego to Quincy, returning Tue, Oct 7, priced at $600 found 4 days ago
Alaska Airlines
Fri, Oct 3 - Mon, Oct 6
SAN
San Diego
UIN
Quincy
$602 Roundtrip, found 4 days ago
$602
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Fri, Oct 3 from San Diego to Quincy, returning Mon, Oct 6, priced at $602 found 4 days ago
Alaska Airlines
Tue, Oct 7 - Sun, Oct 12
SAN
San Diego
UIN
Quincy
$605 Roundtrip, found 2 days ago
$605
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Tue, Oct 7 from San Diego to Quincy, returning Sun, Oct 12, priced at $605 found 2 days ago
Alaska Airlines
Fri, Oct 3 - Thu, Oct 9
SAN
San Diego
UIN
Quincy
$610 Roundtrip, found 4 days ago
$610
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Fri, Oct 3 from San Diego to Quincy, returning Thu, Oct 9, priced at $610 found 4 days ago
Alaska Airlines
Sun, Oct 5 - Thu, Oct 9
SAN
San Diego
UIN
Quincy
$612 Roundtrip, found 4 days ago
$612
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sun, Oct 5 from San Diego to Quincy, returning Thu, Oct 9, priced at $612 found 4 days ago
United
Fri, Oct 3 - Mon, Oct 6
SAN
San Diego
UIN
Quincy
$616 Roundtrip, found 4 days ago
$616
Roundtrip
found 4 days ago
Select United flight, departing Fri, Oct 3 from San Diego to Quincy, returning Mon, Oct 6, priced at $616 found 4 days ago
American Airlines
Fri, Oct 3 - Mon, Oct 6
SAN
San Diego
UIN
Quincy
$642 Roundtrip, found 4 days ago
$642
Roundtrip
found 4 days ago
Select American Airlines flight, departing Fri, Oct 3 from San Diego to Quincy, returning Mon, Oct 6, priced at $642 found 4 days ago

Frequently asked questions

How much does a flight from San Diego Intl. Airport (SAN) to Quincy Regional-Baldwin Field Airport (UIN) cost?
Secure a cheap one-way flight from $255 or cheap return flight from $565 from San Diego Intl. Airport (SAN) to Quincy Regional-Baldwin Field Airport (UIN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from San Diego Intl. Airport (SAN) to Quincy Regional-Baldwin Field Airport (UIN)?
Planning your trip for October is a great way to save, as it's the cheapest month for flights between SAN and UIN. You'll often find the lowest fares during the off-season.
What is the cheapest airline that flies from San Diego Intl. Airport (SAN) to Quincy Regional-Baldwin Field Airport (UIN)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest SAN to UIN flight.
How many flights per day from San Diego Intl. Airport (SAN) to Quincy Regional-Baldwin Field Airport (UIN)?
Direct flights from San Diego Intl. Airport (SAN) to Quincy Regional-Baldwin Field Airport (UIN) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel details and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SAN to UIN?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from San Diego Intl. Airport (SAN) to Quincy Regional-Baldwin Field Airport (UIN)?
To land at Quincy Regional-Baldwin Field Airport (UIN) on time, select a flight that leaves from San Diego Intl. Airport (SAN) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from San Diego Intl. Airport (SAN) to Quincy Regional-Baldwin Field Airport (UIN) last-minute?
Waiting until just before your trip to book a flight from SAN to UIN generally means paying more. While you may come across some last-minute discounts, there's no guarantee. Keep your travel plans flexible to boost your chances of landing a bargain.
Is it cheaper to book a SAN to UIN flight and hotel package?
Compared with arranging hotels and flights separately, booking a SAN to UIN flight and hotel package with Expedia could lead to significant savings. Better yet, having everything in one place will take the stress out of planning your trip. Simply pick your flights and select from our extensive range of stays, then tailor your trip with extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from San Diego Intl. Airport (SAN) to Quincy Regional-Baldwin Field Airport (UIN)?
If you booked your SAN to UIN flight in the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for further details.

Travel information

Travel information

Origin airport
San Diego Intl.
Destination airport
Quincy Regional-Baldwin Field
Roundtrip price
$564
Distance
1523 mi

Book with confidence

Book with confidence

San Diego to Quincy Flights

The cheapest times to fly from San Diego to Quincy

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from San Diego to Quincy are during the month of October. You can find some of the cheapest flights from San Diego to Quincy with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from San Diego to Quincy

Sunday is one of the best days to book for cheap flights from San Diego to Quincy: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from San Diego to Quincy

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from San Diego to Quincy in 2025. You can also book with separate airlines for your outbound and return journeys, from $255 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap San Diego to Quincy flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your San Diego to Quincy airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

San Diego to Quincy Flights

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*Available to One Key members.