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$287+ Cheap flights from Flint, MI to San Diego (FNT - 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 7/31. Fares are subject to change and may not be available on all flights or dates of travel.
FNT — SAN
Jul 23 — Jul 301
Wed 7/23
Wed 7/30
1 adult, Economy
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Cheapflights Tip: The best prices from Flint Bishop to San Diego are usually found in January or November, booked 88 days in advance, depart on a Wednesday or Tuesday and return on a Saturday

Cheap flight deals from Flint to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Flint (FNT) 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 July 18, 2025.

Round-trip from

$287
(Mytrip)

Popular in

March

Cheapest in

January

Average price

$353
From Flint Bishop to San Diego
Search Deals
Highest demand for flights based on searches. 0% potential increase in price ($2 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
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Find flight deals from Flint to San Diego

Cheapest flights from Flint to San Diego
Explore the most affordable flight options available from Flint to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 18, 2025.

This Mytrip deal was found by Cheapflights users on 7/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/316:00 amFNT - SAN
3 stops30h 55mMultiple Airlines
Mon 8/46:15 amSAN - FNT
1 stop14h 09mMultiple Airlines
Deal found 7/16$287
This United Airlines deal was found by Cheapflights users on 7/16. 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.
Sat 11/157:00 amFNT - SAN
1 stop7h 31mUnited Airlines
Tue 11/187:00 amSAN - FNT
1 stop6h 07mUnited Airlines
Deal found 7/16$289
This American Airlines deal was found by Cheapflights users on 7/17. 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 8/136:00 amFNT - SAN
1 stop16h 16mAmerican Airlines
Tue 8/196:19 amSAN - FNT
1 stop10h 16mAmerican Airlines
Deal found 7/17$316

Cheapflights Fare Finder

Customize your flight search to find flights from Flint 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 July 18, 2025.
Use the filters below to find and compare flights from Flint to San Diego that are best for you.

Fly from

Flint

Fly to

San Diego

Route

Depart

Return

Price

FlintSan Diego

FNT - SAN

FNTSAN

Flint Bishop

Thu 7/31

6:00 am-9:55 am

3 stops30h 55m

San Diego

Mon 8/4

6:15 am-11:24 pm

1 stop14h 09m

$287

FlintSan Diego

FNT - SAN

FNTSAN

Flint Bishop

Sat 11/15

7:00 am-11:31 am

1 stop7h 31m

San Diego

Tue 11/18

7:00 am-4:07 pm

1 stop6h 07m

$289

FlintSan Diego

FNT - SAN

FNTSAN

Flint Bishop

Wed 8/13

6:00 am-7:16 pm

1 stop16h 16m

San Diego

Tue 8/19

6:19 am-7:35 pm

1 stop10h 16m

$316

FlintSan Diego

FNT - SAN

FNTSAN

Flint Bishop

Sat 8/9

9:30 am-10:51 am

2 stops28h 21m

$342

FlintSan Diego

FNT - SAN

FNTSAN

Flint Bishop

Sat 8/9

6:00 am-9:19 am

1 stop6h 19m

$343

FlintSan Diego

FNT - SAN

FNTSAN

Flint Bishop

Sun 8/10

2:10 pm-9:34 am

1 stop22h 24m

$349

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/17

Best time to book a flight from Flint to San Diego

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

How far ahead should I book a flight from Flint, Michigan to San Diego?

Use this chart to determine the optimal time to book a round-trip flight from Flint to San Diego. Price data was last updated on July 11, 2025.

To ensure you get the cheapest price possible for a flight from Flint, Michigan to San Diego, you should look to book at least 88 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.

What is the cheapest month to book a flight from Flint, Michigan to San Diego?

Currently, August is the cheapest month in which you can book a flight from Flint, Michigan to San Diego (average of $286). Flying from Flint, Michigan to San Diego in March is currently the most expensive (average of $366). 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.

What is the cheapest time of day to fly from FNT to SAN?

Find hourly flight availability from Flint to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 18, 2025.

A simple way to save on the total cost of your ticket is to fly from Flint, Michigan to San Diego at noon. If you’re flexible enough to do this you can expect to save up to 30% on your trip compared to booking a flight in the evening.

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 July 18, 2025.
Read reviews from past customers who have flown United Airlines and American Airlines from Flint to San Diego. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,864 reviews

Overall

7.4

Food

6.6

Boarding

7.7

Crew

8.1

Entertainment

7.0

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
United Airlines
7.4
Good
8,864 reviews
United Airlines
7.4
Good
8,864 reviews

Overall

7.4

Food

6.6

Boarding

7.7

Crew

8.1

Entertainment

7.0

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,864 reviews

Overall

7.4

Food

6.6

Boarding

7.7

Crew

8.1

Entertainment

7.0

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.

Related info for your journey

Find useful and relevant information for your journey from Flint to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    Cheapflights users have booked flights from Flint, Michigan to San Diego round-trip from $289. Another airline that can offer you cheap pricing is American Airlines. Users have found that United Airlines is 29% cheaper than the other options available to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Flint 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 Flint, Michigan to San Diego?

    Currently, August is the cheapest month in which you can book a flight from Flint, Michigan to San Diego (average of $286). Flying from Flint, Michigan to San Diego in March is currently the most expensive (average of $366). 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
Coronado
Poway
National City
Lemon Grove
Imperial Beach
La Mesa
Alpine
Santee

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Top 2 airlines flying from Flint to San Diego

Discover the top 2 airlines that operate flights from Flint 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 July 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$288Average$382FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$306Average$411FlexibilityNo cancel feeOn-time69%

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