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$185+ Cheap flights from Flint, MI to San Diego (FNT - 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 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
FNT — SAN
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Flint Bishop to San Diego are usually found in January or July, 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 September 11, 2025.

Round-trip from

$269
(Kiwi.com)

One-way from

$185
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$473
From Flint Bishop to San Diego
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One-way flight from Flint Bishop to San Diego
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High demand for flights, 1% potential price rise
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Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 11, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Fri 11/142:00 pmFNT - SAN
1 stop12h 48mMultiple Airlines
Sun 11/163:59 pmSAN - FNT
1 stop28h 13mMultiple Airlines
Deal found 9/11$269
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
Mon 11/32:00 pmFNT - SAN
2 stops36h 50mMultiple Airlines
Sun 11/93:59 pmSAN - FNT
1 stop28h 13mMultiple Airlines
Deal found 9/9$279
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Wed 10/87:00 amFNT - SAN
1 stop7h 40mUnited Airlines
Tue 10/146:48 amSAN - FNT
1 stop6h 20mUnited Airlines
Deal found 9/10$289
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Wed 11/124:42 pmFNT - SAN
1 stop8h 38mUnited Airlines
Sun 11/1610:00 pmSAN - FNT
2 stops12h 25mUnited Airlines
Deal found 9/11$294
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Thu 11/134:42 pmFNT - SAN
1 stop8h 38mUnited Airlines
Mon 11/1710:18 pmSAN - FNT
2 stops12h 07mUnited Airlines
Deal found 9/9$311
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Fri 11/144:42 pmFNT - SAN
1 stop8h 38mUnited Airlines
Sun 11/1610:00 pmSAN - FNT
2 stops12h 25mUnited Airlines
Deal found 9/11$313
This American Airlines deal was found by Cheapflights users on 9/10. 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 9/302:33 pmFNT - SAN
1 stop7h 54mAmerican Airlines
Mon 10/61:14 pmSAN - FNT
1 stop6h 55mAmerican Airlines
Deal found 9/10$314
This American Airlines deal was found by Cheapflights users on 9/9. 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 11/25:30 amFNT - SAN
2 stops9h 30mAmerican Airlines
Sat 11/810:09 amSAN - FNT
2 stops10h 28mAmerican Airlines
Deal found 9/9$324
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
Sun 11/23:49 pmFNT - SAN
2 stops35h 01mMultiple Airlines
Sun 11/93:59 pmSAN - FNT
1 stop28h 13mMultiple Airlines
Deal found 9/9$325

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 September 11, 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

Mon 11/3

2:00 pm-11:50 pm

2 stops36h 50m

San Diego

Sun 11/9

3:59 pm-11:12 pm

1 stop28h 13m

$279

FlintSan Diego

FNT - SAN

FNTSAN

Flint Bishop

Thu 11/13

2:15 pm-6:50 pm

1 stop7h 35m

San Diego

Sun 11/16

7:00 am-4:07 pm

1 stop6h 07m

$289

FlintSan Diego

FNT - SAN

FNTSAN

Flint Bishop

Wed 11/12

2:15 pm-6:50 pm

1 stop7h 35m

San Diego

Sun 11/16

7:00 am-4:07 pm

1 stop6h 07m

$289

FlintSan Diego

FNT - SAN

FNTSAN

Flint Bishop

Thu 10/9

4:43 pm-10:14 pm

1 stop8h 31m

San Diego

Tue 10/14

6:48 am-4:08 pm

1 stop6h 20m

$289

FlintSan Diego

FNT - SAN

FNTSAN

Flint Bishop

Sat 11/15

4:42 pm-10:20 pm

1 stop8h 38m

San Diego

Tue 11/18

6:45 am-10:30 pm

2 stops12h 45m

$294

FlintSan Diego

FNT - SAN

FNTSAN

Flint Bishop

Wed 10/8

4:43 pm-10:14 pm

1 stop8h 31m

San Diego

Tue 10/14

9:20 pm-1:26 pm

2 stops13h 06m

$294

FlintSan Diego

FNT - SAN

FNTSAN

Flint Bishop

Fri 11/14

4:42 pm-10:29 pm

2 stops8h 47m

San Diego

Sun 11/16

10:00 pm-1:25 pm

2 stops12h 25m

$299

FlintSan Diego

FNT - SAN

FNTSAN

Flint Bishop

Sun 9/21

1:49 pm-9:24 pm

3 stops58h 35m

$185

FlintSan Diego

FNT - SAN

FNTSAN

Flint Bishop

Wed 11/12

10:49 am-8:48 pm

1 stop12h 59m

$286

FlintSan Diego

FNT - SAN

FNTSAN

Flint Bishop

Tue 10/21

4:43 pm-9:40 am

1 stop19h 57m

$342

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 15 results
1
2

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 August 29, 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 September 11, 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 September 11, 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
8,937 reviews

Food

6.6

Boarding

7.7

Overall

7.4

Entertainment

7.1

Crew

8.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
United Airlines
7.4
Good
8,937 reviews
United Airlines
7.4
Good
8,937 reviews

Food

6.6

Boarding

7.7

Overall

7.4

Entertainment

7.1

Crew

8.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,937 reviews

Food

6.6

Boarding

7.7

Overall

7.4

Entertainment

7.1

Crew

8.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

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.

  • How long is the flight from Flint, Michigan to San Diego?

    There are many flights that can get you from Flint, Michigan to San Diego in 7h 35m. Fly via United Airlines to get the fastest option. Flint, Michigan and San Diego are separated by a distance of 1940 mi.

  • 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 $288. Another airline that can offer you cheap pricing is United Airlines. Users have found that American Airlines is 31% 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
La Mesa
Poway
Lemon Grove
Coronado
Imperial Beach
National City
Alpine

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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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$288Average$382FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$294Average$406FlexibilityNo cancel feeOn-time69%

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