HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Diego

Cheap flights from Flint to San Diego (FNT - SAN) - Compare and Save

FNT — SAN
Jul 16 — Jul 231
Thu 7/16
Thu 7/23
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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 June 16, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$269
(Kiwi.com)

Popular in

June

Cheapest in

December

Average price

$538
Provider with most accurate pricing for Flint Bishop-San Diego flight deals.
Search Deals
Provider most trusted by Cheapflights users for Flint Bishop-San Diego flights.
Search Deals
From Flint Bishop to San Diego
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($33 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

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 June 16, 2026.

This Kiwi.com deal was found by Cheapflights users on 6/14. 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.
Thu 9/107:00 am
FNT
-
SAN
1 stop16h 48m
Multiple Airlines
Wed 9/169:57 am
SAN
-
FNT
2 stops27h 01m
Multiple Airlines
Deal found 6/14$269
This American Airlines deal was found by Cheapflights users on 6/15. 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 7/35:40 pm
FNT
-
SAN
1 stop6h 42m
American Airlines
Sat 7/46:15 am
SAN
-
FNT
1 stop7h 51m
American Airlines
Deal found 6/15$301
This United Airlines deal was found by Cheapflights users on 6/11. 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 8/266:32 pm
FNT
-
SAN
1 stop6h 38m
United Airlines
Tue 9/18:00 am
SAN
-
FNT
2 stops12h 51m
United Airlines
Deal found 6/11$306
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/55:29 am
FNT
-
SAN
1 stop6h 35m
American Airlines
Sat 7/116:15 am
SAN
-
FNT
1 stop7h 51m
American Airlines
Deal found 6/11$325
This American Airlines deal was found by Cheapflights users on 6/14. 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.
Thu 9/105:32 am
FNT
-
SAN
1 stop6h 39m
American Airlines
Mon 9/147:27 am
SAN
-
FNT
1 stop7h 02m
American Airlines
Deal found 6/14$349
This United Airlines deal was found by Cheapflights users on 6/11. 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 10/76:31 pm
FNT
-
SAN
1 stop7h 10m
United Airlines
Tue 10/136:40 am
SAN
-
FNT
1 stop8h 16m
United Airlines
Deal found 6/11$351
This American Airlines deal was found by Cheapflights users on 6/14. 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 8/55:45 pm
FNT
-
SAN
1 stop9h 02m
American Airlines
Sat 8/156:15 am
SAN
-
FNT
1 stop8h 00m
American Airlines
Deal found 6/14$354
This United Airlines deal was found by Cheapflights users on 6/11. 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 8/265:30 am
FNT
-
SAN
2 stops9h 05m
United Airlines
Tue 9/111:00 am
SAN
-
FNT
2 stops9h 51m
United Airlines
Deal found 6/11$361
This Kiwi.com deal was found by Cheapflights users on 6/14. 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 9/137:00 am
FNT
-
SAN
1 stop8h 25m
Multiple Airlines
Wed 9/169:57 am
SAN
-
FNT
2 stops27h 01m
Multiple Airlines
Deal found 6/14$364
This American Airlines deal was found by Cheapflights users on 6/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/105:32 am
FNT
-
SAN
1 stop6h 58m
American Airlines
Tue 11/176:30 am
SAN
-
FNT
2 stops14h 07m
American Airlines
Deal found 6/16$369
This United Airlines deal was found by Cheapflights users on 6/15. 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.
Sun 8/165:30 am
FNT
-
SAN
1 stop7h 02m
United Airlines
Sat 8/228:45 am
SAN
-
FNT
2 stops12h 06m
United Airlines
Deal found 6/15$376
This American Airlines deal was found by Cheapflights users on 6/12. 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 7/85:40 pm
FNT
-
SAN
1 stop6h 42m
American Airlines
Wed 7/227:30 am
SAN
-
FNT
1 stop6h 40m
American Airlines
Deal found 6/12$378

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 June 16, 2026.
Use the filters below to find and compare flights from Flint to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

FlintSan Diego

FNT - SAN

FNTSAN

Flint Bishop

Tue 8/18

6:32 pm-10:10 pm

1 stop6h 38m

San Diego

Tue 8/25

8:00 am-11:51 pm

2 stops12h 51m

$382
Quickest round-trip

FlintSan Diego

FNT - SAN

FNTSAN

Flint Bishop

Tue 9/22

6:31 pm-10:10 pm

1 stop6h 39m

San Diego

Sat 9/26

2:07 pm-11:54 pm

1 stop6h 47m

$401

FlintSan Diego

FNT - SAN

FNTSAN

Flint Bishop

Sat 9/26

6:31 pm-10:41 pm

1 stop7h 10m

San Diego

Wed 9/30

8:45 am-11:54 pm

2 stops12h 09m

$406

FlintSan Diego

FNT - SAN

FNTSAN

Flint Bishop

Fri 6/26

2:27 pm-7:51 pm

2 stops8h 24m

San Diego

Fri 7/3

9:05 pm-1:24 pm

2 stops13h 19m

$470

FlintSan Diego

FNT - SAN

FNTSAN

Flint Bishop

Tue 7/28

5:40 pm-11:26 pm

1 stop8h 46m

San Diego

Sat 8/1

7:15 am-11:39 pm

2 stops13h 24m

$495

FlintSan Diego

FNT - SAN

FNTSAN

Flint Bishop

Fri 9/18

6:25 am-5:26 pm

2 stops14h 01m

San Diego

Wed 9/23

8:45 am-11:51 pm

2 stops12h 06m

$496

FlintSan Diego

FNT - SAN

FNTSAN

Flint Bishop

Tue 9/22

6:25 am-5:28 pm

2 stops14h 03m

San Diego

Sat 9/26

8:00 am-11:54 pm

2 stops12h 54m

$496

FlintSan Diego

FNT - SAN

FNTSAN

Flint Bishop

Tue 9/22

6:31 pm-5:46 pm

3 stops26h 15m

San Diego

Sat 9/26

8:00 am-11:54 pm

2 stops12h 54m

$523

FlintSan Diego

FNT - SAN

FNTSAN

Flint Bishop

Tue 6/30

2:27 pm-9:24 pm

2 stops9h 57m

San Diego

Sat 7/4

6:40 am-4:28 pm

1 stop6h 48m

$541

FlintSan Diego

FNT - SAN

FNTSAN

Flint Bishop

Tue 8/18

5:30 am-1:17 pm

2 stops10h 47m

San Diego

Tue 8/25

8:45 am-11:51 pm

3 stops12h 06m

$551

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/15

Showing 1-10 of 24 resultsSorted by cheapest first
1
2
3

Compare providers for flights from Flint 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 Flint to San Diego in June.
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 Flint-San Diego flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Flint-San Diego flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Flint-San Diego flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Flint-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 Flint-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 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 to San Diego?

To ensure you get the cheapest price possible for a flight from Flint to San Diego, you should look to book at least 70 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 to San Diego?

Currently, December is the cheapest month in which you can book a flight from Flint to San Diego (average of $323). Flying from Flint to San Diego in June is currently the most expensive (average of $538). 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.

How much does it cost to fly round-trip from Flint to San Diego?

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 June 16, 2026.
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
9,842 reviews

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

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
9,842 reviews
United Airlines
7.4
Good
9,842 reviews

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

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
7.1
Good
11,665 reviews
United Airlines
7.4
Good
9,842 reviews

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

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 to San Diego?

    Airlines like United Airlines and American Airlines fly from Flint to San Diego in about 6h 38m. The time it takes to get you to your destination can typically vary by up to 2h 08m. There are 1940 mi between Flint and San Diego. This flight may include one or multiple stops.

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

    American Airlines, at $288, was found to be the cheapest airline from Flint to San Diego. An alternate airline flying to your destination would be United Airlines. American Airlines is currently priced 30% below the average price you’ll pay for this route.

  • 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 to San Diego?

    Currently, December is the cheapest month in which you can book a flight from Flint to San Diego (average of $323). Flying from Flint to San Diego in June is currently the most expensive (average of $538). 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
National City
Chula Vista
Poway
Coronado
La Mesa
Santee
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 Flint 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
Detroit to Las Vegas flights
O'Hare Intl to San Francisco flights
O'Hare Intl to San Diego flights
Detroit to Los Angeles flights
O'Hare Intl to Ontario flights
Midway to Las Vegas flights
Detroit to San Francisco flights
O'Hare Intl to Santa Ana flights
Midway to Los Angeles flights
O'Hare Intl to San Jose flights
Midway to San Francisco flights
O'Hare Intl to Sacramento flights
Detroit to San Diego flights
O'Hare Intl to Reno flights
O'Hare Intl to Burbank flights
O'Hare Intl to Oakland flights
O'Hare Intl to Palm Springs flights
Rockford to Las Vegas flights
Detroit to Ontario flights
O'Hare Intl to Santa Barbara flights
Grand Rapids to Las Vegas flights
Midway to San Diego flights
O'Hare Intl to Fresno flights
Detroit to Santa Ana flights
Grand Rapids to Los Angeles flights
Detroit to Burbank flights
Midway to San Jose flights
Midway to Reno flights
Midway to Ontario flights
Flint to Las Vegas flights
Detroit to Oakland flights
Grand Rapids to San Francisco flights
Midway to Palm Springs flights
Detroit to Sacramento flights
Grand Rapids to San Diego flights
O'Hare Intl to Long Beach flights
Midway to Sacramento flights
Detroit to Reno flights
Traverse City to Las Vegas flights
Detroit to San Jose flights
O'Hare Intl to Monterey flights
South Bend to Las Vegas flights
South Bend to San Diego flights
Detroit to Palm Springs flights
Kalamazoo to Las Vegas flights
Detroit to Fresno flights
Midway to Long Beach flights

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 June 16, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$288Average$412FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$288Average$395FlexibilityNo 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.
Site
©2026 Cheapflights