$104+ Cheap flights from Chicago (CHI) 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 3/6. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — LAX
Mar 4 — Mar 111
1 adult, Economy
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Find cheap flights from Chicago to Costa Mesa with Cheapflights
1. Tell us where you want to go
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Chicago to Costa Mesa are usually found in September or August, booked 56 days in advance, depart on a Friday or Thursday and return on a Thursday
Cheap flight deals from Chicago to Costa Mesa
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Best
Last-minute
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Cheapest flights from Chicago to Costa MesaExplore the most affordable flight options available from Chicago to Costa Mesa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 2, 2026.
Explore the most affordable flight options available from Chicago to Costa Mesa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 2, 2026.
This Travelocity deal was found by Cheapflights users on 1/31. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/129:18 pm
ORD
- LAX
1 stop18h 45m
Multiple Airlines
Wed 5/209:39 am
LAX
- ORD
Nonstop4h 03m
Multiple Airlines
Deal found 1/31![Multiple Airlines logo]()
$176
This Kiwi.com deal was found by Cheapflights users on 2/1. 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.
Mon 3/92:16 pm
MDW
- LAX
1 stop9h 14m
Frontier
Tue 3/1710:07 pm
LAX
- MDW
1 stop22h 12m
Frontier
Deal found 2/1![Frontier logo]()
$177
This Kiwi.com deal was found by Cheapflights users on 1/31. 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 2/237:19 pm
ORD
- LAX
1 stop14h 56m
Multiple Airlines
Fri 2/277:18 pm
LAX
- ORD
1 stop10h 36m
Multiple Airlines
Deal found 1/31![Multiple Airlines logo]()
$177
This Cheapflightsfares deal was found by Cheapflights users on 1/30. 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.
Thu 4/169:20 pm
ORD
- LAX
Nonstop4h 26m
Spirit Airlines
Sat 4/1812:51 am
LAX
- ORD
Nonstop3h 55m
Spirit Airlines
Deal found 1/30![Spirit Airlines logo]()
$178
This Expedia deal was found by Cheapflights users on 1/30. 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.
Mon 3/26:00 am
MDW
- LAX
1 stop8h 55m
Frontier
Tue 3/1010:43 pm
LAX
- MDW
1 stop17h 30m
Frontier
Deal found 1/30![Frontier logo]()
$179
This Cheapflightsfares deal was found by Cheapflights users on 2/1. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/49:20 pm
ORD
- LAX
Nonstop4h 26m
Spirit Airlines
Thu 5/712:51 am
LAX
- ORD
Nonstop3h 55m
Spirit Airlines
Deal found 2/1![Spirit Airlines logo]()
$179
This Kiwi.com deal was found by Cheapflights users on 2/1. 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.
Mon 2/237:25 pm
MDW
- LAX
1 stop22h 20m
Multiple Airlines
Wed 3/42:51 pm
LAX
- MDW
1 stop28h 21m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$180
This Expedia deal was found by Cheapflights users on 2/1. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/198:59 am
ORD
- LAX
1 stop11h 24m
Spirit Airlines
Mon 2/2311:59 pm
LAX
- ORD
1 stop9h 23m
Spirit Airlines
Deal found 2/1![Spirit Airlines logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 1/31. 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 3/411:51 am
ORD
- LAX
3 stops21h 30m
Multiple Airlines
Sat 3/711:01 pm
LAX
- ORD
Nonstop3h 48m
Multiple Airlines
Deal found 1/31![Multiple Airlines logo]()
$181
This CheapOair deal was found by Cheapflights users on 2/1. 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 4/177:20 pm
ORD
- LAX
1 stop25h 35m
Spirit Airlines
Sat 4/1812:51 am
LAX
- ORD
Nonstop3h 55m
Spirit Airlines
Deal found 2/1![Spirit Airlines logo]()
$182
This Frontier deal was found by Cheapflights users on 2/1. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/246:10 am
MDW
- LAX
1 stop8h 45m
Frontier
Sat 3/75:30 am
LAX
- MDW
1 stop12h 51m
Frontier
Deal found 2/1![Frontier logo]()
$183
This Kiwi.com deal was found by Cheapflights users on 2/1. 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.
Thu 3/127:39 pm
ORD
- LAX
Nonstop4h 27m
Frontier
Tue 3/246:30 pm
LAX
- ORD
1 stop9h 38m
Frontier
Deal found 2/1![Frontier logo]()
$183
Best flights from Chicago to Costa MesaDiscover carefully curated flight deals from Chicago to Costa Mesa that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 2, 2026.
Discover carefully curated flight deals from Chicago to Costa Mesa that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 2, 2026.
This United Airlines deal was found by Cheapflights users on 2/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/287:10 am
ORD
- LAX
Nonstop4h 43m
United Airlines
Sat 3/76:50 pm
LAX
- ORD
Nonstop4h 08m
United Airlines
Deal found 2/1![United Airlines logo]()
$222
This Southwest deal was found by Cheapflights users on 2/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/148:50 pm
MDW
- LAX
Nonstop4h 25m
Southwest
Tue 4/215:15 am
LAX
- MDW
Nonstop4h 00m
Southwest
Deal found 2/1![Southwest logo]()
$237
This Delta deal was found by Cheapflights users on 2/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/61:23 pm
MDW
- LAX
1 stop9h 23m
Delta
Mon 5/1110:24 pm
LAX
- MDW
1 stop8h 19m
Delta
Deal found 2/1![Delta logo]()
$257
This Alaska Airlines deal was found by Cheapflights users on 1/31. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/107:00 am
ORD
- LAX
2 stops15h 08m
Alaska Airlines
Wed 3/187:40 pm
LAX
- ORD
1 stop8h 59m
Alaska Airlines
Deal found 1/31![Alaska Airlines logo]()
$305
This Delta deal was found by Cheapflights users on 2/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/316:34 pm
MDW
- LAX
1 stop7h 18m
Delta
Tue 4/711:30 pm
LAX
- MDW
1 stop7h 23m
Delta
Deal found 2/1![Delta logo]()
$257
This Southwest deal was found by Cheapflights users on 1/30. 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.
Sat 3/149:35 pm
MDW
- LAX
Nonstop4h 35m
Southwest
Fri 3/205:10 am
LAX
- MDW
Nonstop3h 55m
Southwest
Deal found 1/30![Southwest logo]()
$264
This United Airlines deal was found by Cheapflights users on 2/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/199:15 pm
ORD
- LAX
Nonstop4h 44m
United Airlines
Sun 3/226:50 pm
LAX
- ORD
Nonstop4h 08m
United Airlines
Deal found 2/1![United Airlines logo]()
$277
This Southwest deal was found by Cheapflights users on 2/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/76:20 pm
MDW
- LAX
Nonstop4h 35m
Southwest
Sat 3/148:55 pm
LAX
- MDW
1 stop6h 40m
Southwest
Deal found 2/1![Southwest logo]()
$272
This Delta deal was found by Cheapflights users on 2/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/219:30 am
MDW
- LAX
1 stop9h 27m
Delta
Wed 3/2511:30 pm
LAX
- MDW
1 stop7h 23m
Delta
Deal found 2/1![Delta logo]()
$277
This United Airlines deal was found by Cheapflights users on 1/30. 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 3/269:15 pm
ORD
- LAX
Nonstop4h 44m
United Airlines
Thu 4/211:59 pm
LAX
- ORD
Nonstop4h 09m
United Airlines
Deal found 1/30![United Airlines logo]()
$277
This Alaska Airlines deal was found by Cheapflights users on 1/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/318:00 am
ORD
- LAX
2 stops13h 13m
Alaska Airlines
Tue 4/73:53 pm
LAX
- ORD
1 stop12h 46m
Alaska Airlines
Deal found 1/30![Alaska Airlines logo]()
$308
This Southwest deal was found by Cheapflights users on 1/30. 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.
Sat 3/149:35 pm
MDW
- LAX
Nonstop4h 35m
Southwest
Thu 3/195:10 am
LAX
- MDW
Nonstop3h 55m
Southwest
Deal found 1/30![Southwest logo]()
$277
This Delta deal was found by Cheapflights users on 1/31. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/177:10 am
ORD
- LAX
1 stop8h 14m
Delta
Fri 3/2011:30 pm
LAX
- ORD
1 stop7h 40m
Delta
Deal found 1/31![Delta logo]()
$277
This United Airlines deal was found by Cheapflights users on 1/30. 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.
Mon 3/210:51 am
ORD
- LAX
Nonstop4h 53m
United Airlines
Tue 3/108:45 am
LAX
- ORD
Nonstop4h 10m
United Airlines
Deal found 1/30![United Airlines logo]()
$293
This Alaska Airlines deal was found by Cheapflights users on 1/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/122:07 pm
ORD
- LAX
1 stop8h 01m
Alaska Airlines
Tue 3/318:42 am
LAX
- ORD
2 stops13h 17m
Alaska Airlines
Deal found 1/30![Alaska Airlines logo]()
$328
This Southwest deal was found by Cheapflights users on 1/31. 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.
Fri 3/139:30 pm
MDW
- LAX
Nonstop4h 35m
Southwest
Mon 3/169:05 pm
LAX
- MDW
1 stop5h 55m
Southwest
Deal found 1/31![Southwest logo]()
$287
This Delta deal was found by Cheapflights users on 1/31. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/135:59 pm
ORD
- LAX
1 stop7h 56m
Delta
Sat 3/2111:50 am
LAX
- ORD
1 stop10h 02m
Delta
Deal found 1/31![Delta logo]()
$297
This United Airlines deal was found by Cheapflights users on 2/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/28:03 pm
ORD
- LAX
Nonstop4h 41m
United Airlines
Sun 4/511:02 pm
LAX
- ORD
Nonstop4h 13m
United Airlines
Deal found 2/1![United Airlines logo]()
$308
This Southwest deal was found by Cheapflights users on 1/31. 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.
Mon 3/28:35 pm
MDW
- LAX
Nonstop4h 40m
Southwest
Tue 3/1011:55 pm
LAX
- MDW
Nonstop4h 00m
Southwest
Deal found 1/31![Southwest logo]()
$293
This Delta deal was found by Cheapflights users on 2/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/245:04 pm
ORD
- LAX
1 stop8h 46m
Delta
Mon 4/278:10 am
LAX
- ORD
1 stop8h 03m
Delta
Deal found 2/1![Delta logo]()
$310
This Southwest deal was found by Cheapflights users on 1/31. 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.
Mon 3/95:00 am
MDW
- LAX
1 stop8h 55m
Southwest
Tue 3/1711:55 pm
LAX
- MDW
Nonstop4h 00m
Southwest
Deal found 1/31![Southwest logo]()
$296
This Southwest deal was found by Cheapflights users on 2/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/22:05 pm
ORD
- LAX
2 stops9h 25m
Southwest
Sat 5/910:50 am
LAX
- ORD
2 stops10h 35m
Southwest
Deal found 2/1![Southwest logo]()
$297
This Southwest deal was found by Cheapflights users on 2/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/219:35 pm
MDW
- LAX
Nonstop4h 35m
Southwest
Thu 3/2610:45 am
LAX
- MDW
1 stop5h 15m
Southwest
Deal found 2/1![Southwest logo]()
$302
Last-minute flights from Chicago to Costa MesaDiscover last-minute flight deals from Chicago to Costa Mesa. Data last updated February 2, 2026 and is based on user searches.
Discover last-minute flight deals from Chicago to Costa Mesa. Data last updated February 2, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 2/1. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/78:00 am
ORD
- LAX
1 stop8h 02m
Frontier
Sat 3/1411:01 pm
LAX
- ORD
Nonstop3h 48m
Frontier
Deal found 2/1![Frontier logo]()
$225
This Expedia deal was found by Cheapflights users on 2/1. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/85:40 am
ORD
- LAX
1 stop9h 10m
Frontier
Sat 2/217:06 pm
LAX
- ORD
1 stop10h 28m
Frontier
Deal found 2/1![Frontier logo]()
$235
This CheapOair deal was found by Cheapflights users on 1/31. 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.
Sun 2/85:40 am
ORD
- LAX
1 stop9h 10m
Multiple Airlines
Sat 2/287:18 pm
LAX
- ORD
1 stop10h 36m
Multiple Airlines
Deal found 1/31![Multiple Airlines logo]()
$252
This Frontier deal was found by Cheapflights users on 1/31. 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.
Sun 2/85:40 am
ORD
- LAX
1 stop9h 10m
Frontier
Sat 2/147:06 pm
LAX
- ORD
1 stop10h 28m
Frontier
Deal found 1/31![Frontier logo]()
$256
This Priceline deal was found by Cheapflights users on 1/30. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/85:40 am
ORD
- LAX
1 stop9h 10m
Multiple Airlines
Mon 2/98:20 am
LAX
- ORD
1 stop12h 22m
Multiple Airlines
Deal found 1/30![Multiple Airlines logo]()
$258
This Kiwi.com deal was found by Cheapflights users on 1/31. 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 2/93:55 pm
ORD
- LAX
2 stops18h 27m
Multiple Airlines
Sat 2/217:06 pm
LAX
- ORD
1 stop10h 28m
Multiple Airlines
Deal found 1/31![Multiple Airlines logo]()
$254
This Expedia deal was found by Cheapflights users on 2/1. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/99:45 am
MDW
- LAX
1 stop8h 34m
Frontier
Wed 2/1110:22 pm
LAX
- MDW
1 stop11h 05m
Frontier
Deal found 2/1![Frontier logo]()
$302
This Orbitz deal was found by Cheapflights users on 1/31. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/109:05 am
ORD
- LAX
1 stop8h 40m
Multiple Airlines
Mon 2/2311:59 pm
LAX
- ORD
1 stop9h 23m
Multiple Airlines
Deal found 1/31![Multiple Airlines logo]()
$218
This Kiwi.com deal was found by Cheapflights users on 1/31. 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 2/109:05 am
ORD
- LAX
1 stop8h 40m
Frontier
Tue 3/310:42 pm
LAX
- ORD
1 stop10h 09m
Frontier
Deal found 1/31![Frontier logo]()
$232
This Kiwi.com deal was found by Cheapflights users on 1/31. 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 2/109:05 am
ORD
- LAX
1 stop8h 40m
Frontier
Fri 2/209:21 pm
LAX
- ORD
1 stop17h 32m
Frontier
Deal found 1/31![Frontier logo]()
$237
This Frontier deal was found by Cheapflights users on 1/31. 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.
Tue 2/109:05 am
ORD
- LAX
1 stop8h 40m
Frontier
Thu 2/195:14 pm
LAX
- ORD
1 stop12h 24m
Frontier
Deal found 1/31![Frontier logo]()
$246
This Frontier deal was found by Cheapflights users on 1/31. 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.
Wed 2/118:10 am
ORD
- LAX
1 stop9h 35m
Frontier
Sat 2/217:06 pm
LAX
- ORD
1 stop10h 28m
Frontier
Deal found 1/31![Frontier logo]()
$255
One-way flights from Chicago to Costa MesaSearch for one-way flight options from Chicago to Costa Mesa. Find affordable one-way fares based on user searches. Data last updated February 2, 2026.
Search for one-way flight options from Chicago to Costa Mesa. Find affordable one-way fares based on user searches. Data last updated February 2, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/1. 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.
Fri 3/66:00 am
MDW
- LAX
2 stops44h 16m
Frontier
Deal found 2/1![Frontier logo]()
$104
This Mytrip deal was found by Cheapflights users on 2/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/249:18 am
ORD
- LAX
2 stops24h 57m
Spirit Airlines
Deal found 2/1![Spirit Airlines logo]()
$104
This Super.com deal was found by Cheapflights users on 2/1. 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 3/307:49 pm
ORD
- LAX
Nonstop4h 27m
Frontier
Deal found 2/1![Frontier logo]()
$105
This Trip.com deal was found by Cheapflights users on 1/31. 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.
Thu 2/263:00 pm
MDW
- LAX
1 stop9h 40m
Multiple Airlines
Deal found 1/31![Multiple Airlines logo]()
$106
This Cheapflightsfares deal was found by Cheapflights users on 2/1. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/249:45 am
ORD
- LAX
1 stop10h 21m
Spirit Airlines
Deal found 2/1![Spirit Airlines logo]()
$106
This Trip.com deal was found by Cheapflights users on 2/1. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/277:45 am
MDW
- LAX
1 stop12h 01m
Frontier
Deal found 2/1![Frontier logo]()
$107
This Priceline deal was found by Cheapflights users on 2/1. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/137:39 pm
ORD
- LAX
Nonstop4h 27m
Frontier
Deal found 2/1![Frontier logo]()
$107
This Kiwi.com deal was found by Cheapflights users on 1/31. 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 2/193:00 pm
MDW
- LAX
1 stop18h 15m
Multiple Airlines
Deal found 1/31![Multiple Airlines logo]()
$108
This Frontier deal was found by Cheapflights users on 1/31. 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.
Sat 3/147:39 pm
ORD
- LAX
Nonstop4h 27m
Frontier
Deal found 1/31![Frontier logo]()
$108
This Frontier deal was found by Cheapflights users on 2/1. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/95:13 pm
MDW
- LAX
1 stop8h 09m
Frontier
Deal found 2/1![Frontier logo]()
$109
This Kiwi.com deal was found by Cheapflights users on 2/1. 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.
Sat 2/218:05 am
ORD
- LAX
2 stops18h 25m
Frontier
Deal found 2/1![Frontier logo]()
$109
This Trip.com deal was found by Cheapflights users on 2/1. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/53:00 pm
MDW
- LAX
1 stop9h 40m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$110
Find flight deals from Chicago to Costa Mesa
Keep the following information in mind while searching for Chicago to Costa Mesa flight deals. Data was last updated February 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $176 (Travelocity) |
One-way from | $104 (Kiwi.com) |
Popular in | December |
Cheapest in | September |
Average price | $301 |
Cheapflights Fare Finder
Customize your flight search to find flights from Chicago to Costa Mesa 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 February 2, 2026.
Use the filters below to find and compare flights from Chicago to Costa Mesa that are best for you.
Fly from
Chicago
Fly to
Costa Mesa
Route
Depart
Return
Price
ChicagoLos Angeles
ORD - LAX
ORDLAX
Chicago O'Hare Intl
Sat 2/28
7:10 am-9:53 am
Nonstop4h 43m
Los Angeles
Sat 3/7
6:50 pm-12:58 am
Nonstop4h 08m
$222
ChicagoLos Angeles
MDW - LAX
MDWLAX
Chicago Midway
Tue 4/14
8:50 pm-11:15 pm
Nonstop4h 25m
Los Angeles
Tue 4/21
5:15 am-11:15 am
Nonstop4h 00m
$237
ChicagoLos Angeles
MDW - LAX
MDWLAX
Chicago Midway
Wed 5/6
1:23 pm-8:46 pm
1 stop9h 23m
Los Angeles
Mon 5/11
10:24 pm-8:43 am
1 stop8h 19m
$257
ChicagoLos Angeles
MDW - LAX
MDWLAX
Chicago Midway
Tue 3/31
6:34 pm-11:52 pm
1 stop7h 18m
Los Angeles
Tue 4/7
11:30 pm-8:53 am
1 stop7h 23m
$257
ChicagoLos Angeles
MDW - LAX
MDWLAX
Chicago Midway
Sat 3/14
9:35 pm-12:10 am
Nonstop4h 35m
Los Angeles
Fri 3/20
5:10 am-11:05 am
Nonstop3h 55m
$264
ChicagoLos Angeles
MDW - LAX
MDWLAX
Chicago Midway
Sat 3/7
6:20 pm-8:55 pm
Nonstop4h 35m
Los Angeles
Sat 3/14
8:55 pm-5:35 am
1 stop6h 40m
$272
ChicagoLos Angeles
ORD - LAX
ORDLAX
Chicago O'Hare Intl
Thu 3/19
9:15 pm-11:59 pm
Nonstop4h 44m
Los Angeles
Sun 3/22
6:50 pm-12:58 am
Nonstop4h 08m
$277
ChicagoLos Angeles
MDW - LAX
MDWLAX
Chicago Midway
Sat 3/21
9:30 am-4:57 pm
1 stop9h 27m
Los Angeles
Wed 3/25
11:30 pm-8:53 am
1 stop7h 23m
$277
ChicagoLos Angeles
ORD - LAX
ORDLAX
Chicago O'Hare Intl
Thu 3/26
9:15 pm-11:59 pm
Nonstop4h 44m
Los Angeles
Thu 4/2
11:59 pm-6:08 am
Nonstop4h 09m
$277
ChicagoLos Angeles
MDW - LAX
MDWLAX
Chicago Midway
Sat 3/14
9:35 pm-12:10 am
Nonstop4h 35m
Los Angeles
Thu 3/19
5:10 am-11:05 am
Nonstop3h 55m
$277
Showing 1-10 of 44 results
Best time to book a flight from Chicago to Costa Mesa
Have a flexible travel schedule? Discover the best time to fly to Costa Mesa from Chicago with our price prediction graph.
ORD-LAX
MDW-LAX
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 Chicago to Costa Mesa
CHI-CM3
ORD-LAX
MDW-LAX
How far ahead should I book a flight from Chicago to Costa Mesa?
Use this chart to determine the optimal time to book a round-trip flight from Chicago to Costa Mesa. Price data was last updated on January 30, 2026.
To ensure you get the cheapest price possible for a flight from Chicago to Costa Mesa, you should look to book at least 56 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 Chicago to Costa Mesa?
Currently, September is the cheapest month in which you can book a flight from Chicago to Costa Mesa (average of $80). Flying from Chicago to Costa Mesa in January is currently the most expensive (average of $135). 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 CHI to CM3?
Find hourly flight availability from Chicago 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 February 2, 2026.
One of the essential ways to save on airfare from Chicago 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 evening could potentially save you up to 21% on airfare.
What is the cheapest day to fly from Chicago to Costa Mesa?
Use this chart to determine the cheapest time to fly round-trip from Chicago to Costa Mesa. Price data was last updated on January 31, 2026.
Travelers seeking maximum savings on their Chicago to Costa Mesa flight should consider departing on Monday evenings 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 Chicago to Costa Mesa
Explore weekly flight availability from Chicago 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 February 2, 2026.
The most flights from CHI to CM3 are scheduled on a Friday (98 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (64 on average).
How much does it cost to fly round-trip from Chicago to Costa Mesa?
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 February 2, 2026.
Peruse reviews from past customers who have flown with Southwest, United Airlines, and American Airlines from Chicago to Costa Mesa to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Crew
8.6
Boarding
8.1
Comfort
8.0
Overall
8.0
Food
7.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Entertainment
7.5
Crew
8.6
Boarding
8.1
Comfort
8.0
Overall
8.0
Food
7.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Entertainment
7.5
Crew
8.6
Boarding
8.1
Comfort
8.0
Overall
8.0
Food
7.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Entertainment
7.5
Crew
8.6
Boarding
8.1
Comfort
8.0
Overall
8.0
Food
7.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Entertainment
7.5
Crew
8.6
Boarding
8.1
Comfort
8.0
Overall
8.0
Food
7.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Entertainment
7.5
Crew
8.6
Boarding
8.1
Comfort
8.0
Overall
8.0
Food
7.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Related info for your journey
Find useful and relevant information for your journey from Chicago to Costa Mesa. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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 Chicago to Costa Mesa
See prices for flight routes from nearby airports that may be better suited for you.
Top 8 airlines flying from Chicago to Costa Mesa
Discover the top 8 airlines that operate flights from Chicago 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 February 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$57 | Average$185 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$78 | Average$225 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$128 | Average$316 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$139 | Average$473 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$159 | Average$379 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$171 | Average$392 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$199 | Average$306 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$213 | Average$431 | FlexibilityNo cancel fee | On-time63% |