Find cheap Frontier flights to San Diego
CMH — SAN
Aug 26 — Sep 21
Round-trip
1 adult, Economy
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Cheapest Frontier flights from USA to San DiegoExplore the most affordable Frontier flight options available from USA to San Diego. Find the lowest fares with prices last updated on July 27, 2026.
Explore the most affordable Frontier flight options available from USA to San Diego. Find the lowest fares with prices last updated on July 27, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1310:23 pm
SFO
- SAN
Nonstop1h 36m
Frontier
Tue 8/1810:00 am
SAN
- SFO
Nonstop1h 52m
Frontier
Deal found 7/24![Frontier logo]()
$82
This Kiwi.com deal was found by Cheapflights users on 7/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1310:23 pm
SFO
- SAN
Nonstop1h 36m
Frontier
Sat 8/157:45 pm
SAN
- SFO
Nonstop1h 47m
Frontier
Deal found 7/24![Frontier logo]()
$83
This Expedia deal was found by Cheapflights users on 7/27. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/231:07 pm
SFO
- SAN
Nonstop1h 43m
Frontier
Tue 8/2510:00 am
SAN
- SFO
Nonstop1h 52m
Frontier
Deal found 7/27![Frontier logo]()
$84
Best Frontier flights from USA to San DiegoDiscover carefully curated Frontier flight deals from USA to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 27, 2026.
Discover carefully curated Frontier flight deals from USA to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 27, 2026.
This Expedia deal was found by Cheapflights users on 7/27. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/231:07 pm
SFO
- SAN
Nonstop1h 43m
Frontier
Tue 8/2510:00 am
SAN
- SFO
Nonstop1h 52m
Frontier
Deal found 7/27![Frontier logo]()
$84
This deal was found by Cheapflights users on 7/25. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/281:07 pm
SFO
- SAN
Nonstop1h 43m
Frontier
Sat 8/2910:00 am
SAN
- SFO
Nonstop1h 52m
Frontier
Deal found 7/25![Frontier logo]()
$94
This Frontier deal was found by Cheapflights users on 7/26. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/24:31 pm
SFO
- SAN
Nonstop1h 48m
Frontier
Tue 10/610:28 am
SAN
- SFO
Nonstop1h 57m
Frontier
Deal found 7/26![Frontier logo]()
$95
Direct Frontier flights from USA to San DiegoExplore non-stop Frontier flight options from USA to San Diego based on user searches, and compare prices and availability for your desired travel dates. Data last updated July 27, 2026.
Explore non-stop Frontier flight options from USA to San Diego based on user searches, and compare prices and availability for your desired travel dates. Data last updated July 27, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/224:31 pm
SFO
- SAN
Nonstop1h 48m
Frontier
Fri 9/254:36 pm
SAN
- SFO
Nonstop1h 46m
Frontier
Deal found 7/23![Frontier logo]()
$80
This Kiwi.com deal was found by Cheapflights users on 7/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/31:07 pm
SFO
- SAN
Nonstop1h 43m
Frontier
Wed 9/91:38 pm
SAN
- SFO
Nonstop1h 55m
Frontier
Deal found 7/25![Frontier logo]()
$81
This Kiwi.com deal was found by Cheapflights users on 7/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1310:23 pm
SFO
- SAN
Nonstop1h 36m
Frontier
Tue 8/1810:00 am
SAN
- SFO
Nonstop1h 52m
Frontier
Deal found 7/24![Frontier logo]()
$82
Last-minute Frontier flights from USA to San DiegoDiscover last-minute Frontier flight deals from USA to San Diego. Data last updated July 27, 2026 and is based on user searches.
Discover last-minute Frontier flight deals from USA to San Diego. Data last updated July 27, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 7/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1310:23 pm
SFO
- SAN
Nonstop1h 36m
Frontier
Tue 8/1810:00 am
SAN
- SFO
Nonstop1h 52m
Frontier
Deal found 7/24![Frontier logo]()
$82
This Kiwi.com deal was found by Cheapflights users on 7/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1310:23 pm
SFO
- SAN
Nonstop1h 36m
Frontier
Sat 8/157:45 pm
SAN
- SFO
Nonstop1h 47m
Frontier
Deal found 7/24![Frontier logo]()
$83
This Expedia deal was found by Cheapflights users on 7/27. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/231:07 pm
SFO
- SAN
Nonstop1h 43m
Frontier
Tue 8/2510:00 am
SAN
- SFO
Nonstop1h 52m
Frontier
Deal found 7/27![Frontier logo]()
$84
One-way Frontier flights to San DiegoSearch for one-way Frontier flight options to San Diego. Find affordable one-way fares based on user searches. Data last updated July 27, 2026.
Search for one-way Frontier flight options to San Diego. Find affordable one-way fares based on user searches. Data last updated July 27, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 10/255:52 pm
SFO
- SAN
Nonstop1h 45m
Frontier
Deal found 7/27![Frontier logo]()
$58
This Frontier deal was found by Cheapflights users on 7/23. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/225:52 pm
SFO
- SAN
Nonstop1h 45m
Frontier
Deal found 7/23![Frontier logo]()
$61
This Kiwi.com deal was found by Cheapflights users on 7/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/282:28 pm
SFO
- SAN
1 stop5h 49m
Frontier
Deal found 7/26![Frontier logo]()
$62
Flights to San Diego with Frontier at a glance
Find detailed information about Frontier flights from USA to San Diego. Explore the options provided by Frontier to plan your journey from USA to San Diego. Data last updated July 27, 2026.
Cheapflights Insights
Find cheap Frontier flights to San Diego
US0-SAN
SFO-SAN
How long is the flight to San Diego with Frontier?
On average, Frontier flights from the United States to San Diego take 4 hours 30 minutes. Flights to San Diego from other popular cities in the United States will vary in length. Below are a few examples of popular routes and their flight times.
Frontier weekly flight availability to San Diego
The most flights to San Diego operated by Frontier are scheduled on a Monday (6 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (6 on average).
When is the best time to book a flight to San Diego with Frontier?
The best time to book a flight to San Diego with Frontier is 88 days before departure. On average, fares are higher if you book on the same day as departure.
When is the cheapest time to fly to San Diego with Frontier?
Users looking for the cheapest Frontier fares to San Diego should consider flying on Tuesday mornings, when prices are typically cheapest. Budget-minded travellers will want to avoid Sunday afternoons, when prices are usually at their highest.
FAQs about flights to San Diego with Frontier
Reviews of Frontier
See what Cheapflights users have to say about their Frontier experience.
Overview
Reviews
Frontier
2,754 reviews
Overview
Entertainment
4.3
Food
4.5
Crew
6.6
Boarding
5.9
Comfort
5.4
Recent reviews
10.0
|Jul 2026Better Food and there was no entertainment . You guys could provide head phones and wifi for the passengers
2.0
|Jul 2026Flight delayed 3 hours
6.0
|Jun 2026Nothing. Needs better seat. Need atleast water. Need wifi
4.0
|Jun 2026The flight was delayed about 3hours
2.0
|Jun 2026I paid extra for seating upfront but was very cramped and had to wait for other passengers to unboard even though I paid for seating upfront front to unboard first. Reason being they were probably not going to make their connecting flights because we had to wait an hour and a half for an open gate. I had to wait on the tarmac for as long as the flight itself took. It was a horrible experience and not only should I receive a refund for my upgrade, but I should receive a refund for the entire flight. I plan on sending a formal complaint as well as letting friends and family know that frontier is a horrible choice. It is by far a better option to pay a bit more and use a different airline. My opinion may be changed if something is done to earn my business once more. Otherwise I have nothing positive to say about my experience.
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