Find cheap Frontier flights to San Diego
ICT — SAN
Nov 5 — Nov 121
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 October 6, 2026.
Explore the most affordable Frontier flight options available from USA to San Diego. Find the lowest fares with prices last updated on October 6, 2026.
This deal was found by Cheapflights users on 10/1. 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.
Mon 10/191:12 pm -
Nonstop1h 17m
Wed 10/212:01 pm -
Nonstop1h 27m
Deal found 10/1![Frontier logo]()
$51
This Kiwi.com deal was found by Cheapflights users on 10/2. 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.
Wed 11/119:52 am -
Nonstop1h 19m
Sat 11/1411:06 am -
Nonstop1h 35m
Deal found 10/2![Frontier logo]()
$52
This Booking.com deal was found by Cheapflights users on 10/2. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/221:12 pm -
Nonstop1h 17m
Mon 10/262:01 pm -
Nonstop1h 27m
Deal found 10/2![Frontier logo]()
$53
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 October 6, 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 October 6, 2026.
This CheapOair deal was found by Cheapflights users on 10/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/69:52 am -
Nonstop1h 19m
Wed 11/1111:06 am -
Nonstop1h 35m
Deal found 10/1![Frontier logo]()
$61
This Super.com deal was found by Cheapflights users on 10/2. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/261:56 pm -
Nonstop1h 18m
Thu 1/283:09 pm -
Nonstop1h 28m
Deal found 10/2![Frontier logo]()
$68
This Cheapflightsfares deal was found by Cheapflights users on 10/5. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/209:21 am -
1 stop6h 17m
Wed 2/243:09 pm -
Nonstop1h 28m
Deal found 10/5![Frontier logo]()
$78
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 October 6, 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 October 6, 2026.
This deal was found by Cheapflights users on 10/1. 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.
Mon 10/191:12 pm -
Nonstop1h 17m
Wed 10/212:01 pm -
Nonstop1h 27m
Deal found 10/1![Frontier logo]()
$51
This Kiwi.com deal was found by Cheapflights users on 10/2. 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.
Wed 11/119:52 am -
Nonstop1h 19m
Sat 11/1411:06 am -
Nonstop1h 35m
Deal found 10/2![Frontier logo]()
$52
This Booking.com deal was found by Cheapflights users on 10/2. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/221:12 pm -
Nonstop1h 17m
Mon 10/262:01 pm -
Nonstop1h 27m
Deal found 10/2![Frontier logo]()
$53
Last-minute Frontier flights from USA to San DiegoDiscover last-minute Frontier flight deals from USA to San Diego. Data last updated October 6, 2026 and is based on user searches.
Discover last-minute Frontier flight deals from USA to San Diego. Data last updated October 6, 2026 and is based on user searches.
This deal was found by Cheapflights users on 10/1. 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.
Mon 10/191:12 pm -
Nonstop1h 17m
Wed 10/212:01 pm -
Nonstop1h 27m
Deal found 10/1![Frontier logo]()
$51
This Kiwi.com deal was found by Cheapflights users on 10/2. 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.
Wed 11/119:52 am -
Nonstop1h 19m
Sat 11/1411:06 am -
Nonstop1h 35m
Deal found 10/2![Frontier logo]()
$52
This Booking.com deal was found by Cheapflights users on 10/2. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/221:12 pm -
Nonstop1h 17m
Mon 10/262:01 pm -
Nonstop1h 27m
Deal found 10/2![Frontier logo]()
$53
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 October 6, 2026.
Search for one-way Frontier flight options to San Diego. Find affordable one-way fares based on user searches. Data last updated October 6, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/1. 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 12/17:52 pm -
1 stop5h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![Frontier logo]()
$48
This Cheapflightsfares deal was found by Cheapflights users on 10/2. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/318:52 am -
Nonstop1h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/2![Frontier logo]()
$49
This Super.com deal was found by Cheapflights users on 10/1. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/251:56 pm -
Nonstop1h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![Frontier logo]()
$50
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 October 6, 2026.
Cheapflights Insights
Find cheap Frontier flights to San Diego
US0-SAN
PHX-SAN
How long is the flight to San Diego with Frontier?
On average, Frontier flights from the United States to San Diego take 3 hours 52 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 Sunday (12 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (7 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 53 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
2,550 reviews
Overview
Boarding
5.8
Entertainment
4.2
Comfort
5.4
Food
4.5
Crew
6.5
Recent reviews
2.0
|Sep 2026They charge $25 to check in with an agent and the only other option is to install the app, so I installed it just for this one flight. Then the app didn't find my reservation so they sent me to an agent anyway. The agent was unfriendly and printed my boarding pass without tsa pre check, so I had to go through the standard line. Also the flight was delayed two hours.
8.0
|Sep 2026I was traveling with a lap infant and got to TSA only to be turned around saying that something was wrong with my boarding pass. I went to an agent and said nothing was wrong, printed me a board pass and I had to rejoin the line. The when I get to the ticket counter I found out they changed my family seat even though I purchased it prior. I was told I got a refund so I’ll see
2.0
|Jul 2026Flight was delayed a whole day - no compensation on food or drinks. Gate staff gave an older gentleman a hard time about his confusion and concern regarding the overnight delay.
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
1 out of 850
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