$49+ Cheap flights from San Francisco (SFO) to Costa Mesa, CA
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 3/18. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from San Francisco to Costa Mesa with Cheapflights
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from San Francisco to Costa Mesa
Cheapest flights from San Francisco to Costa MesaExplore the most affordable flight options available from San Francisco to Costa Mesa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 27, 2026.
Explore the most affordable flight options available from San Francisco to Costa Mesa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 27, 2026.
This Trip.com deal was found by Cheapflights users on 1/25. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Kiwi.com deal was found by Cheapflights users on 1/25. 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.
This Jetabroad deal was found by Cheapflights users on 1/26. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Kiwi.com deal was found by Cheapflights users on 1/26. 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.
This Frontier deal was found by Cheapflights users on 1/27. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Kiwi.com deal was found by Cheapflights users on 1/24. 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.
This Kiwi.com deal was found by Cheapflights users on 1/26. 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.
This Southwest deal was found by Cheapflights users on 1/27. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Kiwi.com deal was found by Cheapflights users on 1/25. 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.
This Frontier deal was found by Cheapflights users on 1/25. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Find flight deals from San Francisco to Costa Mesa
Keep the following information in mind while searching for San Francisco to Costa Mesa flight deals. Data was last updated January 27, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $88 (Trip.com) |
One-way from | $49 (Alaska Airlines) |
Popular in | December |
Cheapest in | February |
Average price | $179 |
Cheapflights Fare Finder
Use the filters below to find and compare flights from San Francisco to Costa Mesa that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
San FranciscoLos Angeles
SFO - LAX
SFOLAX
San Francisco
Sat 2/28
6:55 pm-8:26 pm
Nonstop1h 31m
Los Angeles
Mon 3/2
11:14 am-12:44 pm
Nonstop1h 30m
San FranciscoLos Angeles
SFO - LAX
SFOLAX
San Francisco
Wed 2/18
1:15 pm-2:47 pm
Nonstop1h 32m
Los Angeles
Tue 2/24
9:35 pm-11:04 pm
Nonstop1h 29m
San FranciscoLos Angeles
SFO - LAX
SFOLAX
San Francisco
Sat 3/7
5:00 am-10:55 am
1 stop5h 55m
Los Angeles
Mon 3/9
8:45 pm-10:10 pm
Nonstop1h 25m
San FranciscoLos Angeles
SFO - LAX
SFOLAX
San Francisco
Mon 3/2
9:24 pm-10:58 pm
Nonstop1h 34m
Los Angeles
Wed 3/4
8:00 am-9:33 am
Nonstop1h 33m
San FranciscoLos Angeles
SFO - LAX
SFOLAX
San Francisco
Mon 2/23
8:30 pm-9:55 pm
Nonstop1h 25m
Los Angeles
Tue 2/24
5:45 am-11:50 am
1 stop6h 05m
San FranciscoLos Angeles
SFO - LAX
SFOLAX
San Francisco
Wed 3/4
10:00 am-2:30 pm
1 stop4h 30m
Los Angeles
Wed 3/4
6:50 pm-8:15 pm
Nonstop1h 25m
San FranciscoLos Angeles
SFO - LAX
SFOLAX
San Francisco
Sun 2/22
6:00 am-7:29 am
Nonstop1h 29m
Los Angeles
Tue 2/24
6:30 am-7:55 am
Nonstop1h 25m
San FranciscoLos Angeles
SFO - LAX
SFOLAX
San Francisco
Fri 3/13
6:00 am-7:29 am
Nonstop1h 29m
Los Angeles
Sun 3/15
6:30 am-7:54 am
Nonstop1h 24m
San FranciscoLos Angeles
SFO - LAX
SFOLAX
San Francisco
Sun 3/1
6:00 am-7:29 am
Nonstop1h 29m
Los Angeles
Wed 3/4
8:30 am-10:02 am
Nonstop1h 32m
San FranciscoLos Angeles
SFO - LAX
SFOLAX
San Francisco
Wed 2/25
8:55 am-10:31 am
Nonstop1h 36m
Los Angeles
Sun 3/1
6:30 am-7:55 am
Nonstop1h 25m
Best time to book a flight from San Francisco to Costa Mesa
Have a flexible travel schedule? Discover the best time to fly to Costa Mesa from San Francisco with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from San Francisco to Costa Mesa
How far ahead should I book a flight from San Francisco to Costa Mesa?
Use this chart to determine the optimal time to book a round-trip flight from San Francisco to Costa Mesa. Price data was last updated on January 23, 2026.
The price you pay for your flight from San Francisco to Costa Mesa may vary depending on when you book. For the best chance of a lower fare, look to book 75 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from San Francisco to Costa Mesa?
Currently, April is the cheapest month in which you can book a flight from San Francisco to Costa Mesa (average of $29). Flying from San Francisco to Costa Mesa in July is currently the most expensive (average of $57). 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 SFO to CM3?
Find hourly flight availability from San Francisco to Costa Mesa. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 27, 2026.
One of the essential ways to save on airfare from San Francisco to Costa Mesa is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the morning could potentially save you up to 14% on airfare.
What is the cheapest day to fly from San Francisco to Costa Mesa?
Use this chart to determine the cheapest time to fly round-trip from San Francisco to Costa Mesa. Price data was last updated on January 24, 2026.
Travelers seeking maximum savings on their San Francisco to Costa Mesa flight should consider departing on Sunday at noon when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from San Francisco to Costa Mesa
Explore weekly flight availability from San Francisco to Costa Mesa. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated January 27, 2026.
The most flights from SFO to CM3 are scheduled on a Monday (150 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (96 on average).
Reviews of airlines servicing Costa Mesa
Get insights into the airlines that provide service to Costa Mesa. 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 Costa Mesa. Reviews last updated January 27, 2026.
Get a feel of what it's like to fly with Alaska Airlines, Delta, and United Airlines from San Francisco to Costa Mesa by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
Comfort
Crew
Food
Boarding
Entertainment
Reviews
Anonymous,Jan 2026
STS - LAX
Overall
Comfort
Crew
Food
Boarding
Entertainment
Reviews
Anonymous,Jan 2026
STS - LAX
Overall
Comfort
Crew
Food
Boarding
Entertainment
Reviews
Anonymous,Jan 2026
STS - LAX
Overall
Comfort
Crew
Food
Boarding
Entertainment
Reviews
Anonymous,Jan 2026
STS - LAX
Overall
Comfort
Crew
Food
Boarding
Entertainment
Reviews
Anonymous,Jan 2026
STS - LAX
Overall
Comfort
Crew
Food
Boarding
Entertainment
Reviews
Anonymous,Jan 2026
STS - LAX
Related info for your journey
Find useful and relevant information for your journey from San Francisco to Costa Mesa. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for San Francisco to Costa Mesa
See prices for flight routes from nearby airports that may be better suited for you.
Top 9 airlines flying from San Francisco to Costa Mesa
Discover the top 9 airlines that operate flights from San Francisco to Costa Mesa. 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 January 27, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$25 | Average$109 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$30 | Average$116 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$38 | Average$160 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$53 | Average$199 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$58 | Average$223 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$85 | Average$149 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$87 | Average$227 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$107 | Average$272 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$114 | Average$303 | FlexibilityNo cancel fee | On-time71% |