$79+ 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 4/28. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — LAX
May 10 — May 171
Round-trip
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 51 days in advance, depart on a Thursday or Friday 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 April 10, 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 April 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/9. 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 5/17:21 pm
ORD
- LAX
Nonstop4h 45m
Frontier
Fri 5/812:31 am
LAX
- ORD
Nonstop4h 08m
Frontier
Deal found 4/9![Frontier logo]()
$149
This Booking.com deal was found by Cheapflights users on 4/8. 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 5/219:37 pm
ORD
- LAX
1 stop19h 59m
Frontier
Tue 5/2612:26 am
LAX
- ORD
Nonstop4h 08m
Frontier
Deal found 4/8![Frontier logo]()
$150
This Kiwi.com deal was found by Cheapflights users on 4/8. 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 5/26:16 pm
ORD
- LAX
1 stop7h 37m
Multiple Airlines
Sun 5/3112:26 am
LAX
- ORD
Nonstop4h 08m
Multiple Airlines
Deal found 4/8![Multiple Airlines logo]()
$151
This Frontier deal was found by Cheapflights users on 4/8. 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 5/78:56 pm
ORD
- LAX
Nonstop4h 40m
Frontier
Sun 5/3112:26 am
LAX
- ORD
Nonstop4h 08m
Frontier
Deal found 4/8![Frontier logo]()
$152
This Cheapflightsfares deal was found by Cheapflights users on 4/10. 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 4/305:15 am
ORD
- LAX
Nonstop4h 20m
Spirit Airlines
Sat 5/25:30 am
LAX
- ORD
1 stop9h 41m
Spirit Airlines
Deal found 4/10![Spirit Airlines logo]()
$153
This Cheapflightsfares deal was found by Cheapflights users on 4/8. 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 5/23:00 pm
ORD
- LAX
Nonstop4h 23m
Spirit Airlines
Sat 5/911:59 pm
LAX
- ORD
Nonstop4h 00m
Spirit Airlines
Deal found 4/8![Spirit Airlines logo]()
$154
This Kiwi.com deal was found by Cheapflights users on 4/8. 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 5/69:37 pm
ORD
- LAX
1 stop12h 58m
Frontier
Wed 5/133:28 pm
LAX
- ORD
1 stop14h 27m
Frontier
Deal found 4/8![Frontier logo]()
$155
This Kiwi.com deal was found by Cheapflights users on 4/6. 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 5/27:21 pm
ORD
- LAX
Nonstop4h 45m
Multiple Airlines
Mon 5/118:59 pm
LAX
- ORD
2 stops16h 04m
Multiple Airlines
Deal found 4/6![Multiple Airlines logo]()
$157
This Frontier deal was found by Cheapflights users on 4/6. 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 5/299:37 pm
ORD
- LAX
1 stop12h 58m
Frontier
Sat 5/3012:26 am
LAX
- ORD
Nonstop4h 08m
Frontier
Deal found 4/6![Frontier logo]()
$158
This CheapOair deal was found by Cheapflights users on 4/6. 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.
Tue 4/287:21 pm
ORD
- LAX
Nonstop4h 45m
Frontier
Sat 5/211:59 pm
LAX
- ORD
Nonstop4h 21m
Frontier
Deal found 4/6![Frontier logo]()
$159
This Orbitz deal was found by Cheapflights users on 4/7. 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.
Sat 5/26:00 am
MDW
- LAX
1 stop8h 56m
Frontier
Wed 5/65:45 am
LAX
- MDW
1 stop6h 27m
Frontier
Deal found 4/7![Frontier logo]()
$177
This Super.com deal was found by Cheapflights users on 4/8. 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.
Wed 4/222:15 pm
MDW
- LAX
1 stop9h 30m
Frontier
Sat 5/29:04 pm
LAX
- MDW
1 stop8h 37m
Frontier
Deal found 4/8![Frontier logo]()
$180
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 April 10, 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 April 10, 2026.
This United Airlines deal was found by Cheapflights users on 4/7. 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 5/67:54 pm
ORD
- LAX
Nonstop4h 41m
United Airlines
Wed 5/137:11 pm
LAX
- ORD
Nonstop4h 07m
United Airlines
Deal found 4/7![United Airlines logo]()
$199
This Delta deal was found by Cheapflights users on 4/6. 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 6/237:35 am
ORD
- LAX
Nonstop4h 26m
Delta
Wed 7/15:15 pm
LAX
- ORD
Nonstop4h 03m
Delta
Deal found 4/6![Delta logo]()
$217
This Southwest deal was found by Cheapflights users on 4/8. 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.
Wed 5/610:30 am
ORD
- LAX
2 stops8h 55m
Southwest
Wed 5/1311:15 pm
LAX
- ORD
1 stop8h 30m
Southwest
Deal found 4/8![Southwest logo]()
$224
This Alaska Airlines deal was found by Cheapflights users on 4/6. 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 6/168:05 pm
ORD
- LAX
1 stop14h 42m
Alaska Airlines
Tue 6/2310:03 am
LAX
- ORD
2 stops11h 33m
Alaska Airlines
Deal found 4/6![Alaska Airlines logo]()
$355
This Southwest deal was found by Cheapflights users on 4/6. 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 4/286:10 am
MDW
- LAX
2 stops8h 00m
Southwest
Thu 4/304:45 pm
LAX
- MDW
Nonstop3h 55m
Southwest
Deal found 4/6![Southwest logo]()
$235
This Delta deal was found by Cheapflights users on 4/6. 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 5/2011:09 am
ORD
- LAX
1 stop8h 56m
Delta
Tue 5/262:05 pm
LAX
- ORD
1 stop7h 52m
Delta
Deal found 4/6![Delta logo]()
$237
This Southwest deal was found by Cheapflights users on 4/5. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/26:00 pm
MDW
- LAX
Nonstop4h 25m
Southwest
Sat 5/911:55 pm
LAX
- MDW
Nonstop3h 55m
Southwest
Deal found 4/5![Southwest logo]()
$241
This Delta deal was found by Cheapflights users on 4/9. 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 5/56:38 pm
MDW
- LAX
1 stop7h 12m
Delta
Thu 5/712:10 pm
LAX
- MDW
1 stop6h 59m
Delta
Deal found 4/9![Delta logo]()
$249
This Southwest deal was found by Cheapflights users on 4/5. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/196:10 am
MDW
- LAX
2 stops8h 00m
Southwest
Tue 5/267:50 am
LAX
- MDW
1 stop7h 05m
Southwest
Deal found 4/5![Southwest logo]()
$245
This United Airlines deal was found by Cheapflights users on 4/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/311:00 pm
ORD
- LAX
Nonstop4h 41m
United Airlines
Sun 5/1010:53 pm
LAX
- ORD
Nonstop4h 13m
United Airlines
Deal found 4/5![United Airlines logo]()
$317
This Southwest deal was found by Cheapflights users on 4/5. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/74:50 pm
ORD
- LAX
1 stop7h 10m
Southwest
Wed 5/202:20 pm
LAX
- ORD
2 stops7h 35m
Southwest
Deal found 4/5![Southwest logo]()
$245
This Southwest deal was found by Cheapflights users on 4/7. 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.
Thu 4/304:15 pm
ORD
- LAX
2 stops9h 05m
Southwest
Wed 5/62:20 pm
LAX
- ORD
2 stops7h 35m
Southwest
Deal found 4/7![Southwest logo]()
$250
This Southwest deal was found by Cheapflights users on 4/5. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/216:00 am
MDW
- LAX
1 stop7h 20m
Southwest
Thu 5/284:45 pm
LAX
- MDW
Nonstop3h 55m
Southwest
Deal found 4/5![Southwest logo]()
$251
This Alaska Airlines deal was found by Cheapflights users on 4/6. 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.
Fri 8/286:01 am
ORD
- LAX
2 stops9h 54m
Alaska Airlines
Tue 9/12:26 pm
LAX
- ORD
1 stop7h 15m
Alaska Airlines
Deal found 4/6![Alaska Airlines logo]()
$419
This Southwest deal was found by Cheapflights users on 4/9. 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.
Wed 5/610:10 am
MDW
- LAX
Nonstop4h 30m
Southwest
Sun 5/1010:40 am
LAX
- MDW
1 stop5h 15m
Southwest
Deal found 4/9![Southwest logo]()
$254
This Southwest deal was found by Cheapflights users on 4/9. 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 5/96:00 am
MDW
- LAX
2 stops8h 10m
Southwest
Sat 5/165:00 am
LAX
- MDW
1 stop8h 05m
Southwest
Deal found 4/9![Southwest logo]()
$266
This Southwest deal was found by Cheapflights users on 4/8. 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 5/26:15 am
ORD
- LAX
1 stop7h 55m
Southwest
Mon 5/115:20 am
LAX
- ORD
2 stops7h 40m
Southwest
Deal found 4/8![Southwest logo]()
$266
This Southwest deal was found by Cheapflights users on 4/9. 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 5/294:15 pm
ORD
- LAX
2 stops9h 05m
Southwest
Sat 5/305:35 am
LAX
- ORD
1 stop6h 55m
Southwest
Deal found 4/9![Southwest logo]()
$274
This Southwest deal was found by Cheapflights users on 4/10. 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.
Thu 5/76:15 am
MDW
- LAX
Nonstop4h 25m
Southwest
Sun 5/106:05 am
LAX
- MDW
Nonstop4h 00m
Southwest
Deal found 4/10![Southwest logo]()
$289
This Southwest deal was found by Cheapflights users on 4/6. 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 5/236:45 am
MDW
- LAX
Nonstop4h 25m
Southwest
Sat 5/238:25 pm
LAX
- MDW
1 stop7h 00m
Southwest
Deal found 4/6![Southwest logo]()
$296
This Southwest deal was found by Cheapflights users on 4/10. 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 5/154:15 pm
ORD
- LAX
2 stops9h 05m
Southwest
Mon 5/187:25 am
LAX
- ORD
2 stops14h 30m
Southwest
Deal found 4/10![Southwest logo]()
$305
This Southwest deal was found by Cheapflights users on 4/5. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/28:55 pm
MDW
- LAX
Nonstop4h 25m
Southwest
Fri 6/56:20 pm
LAX
- MDW
Nonstop3h 55m
Southwest
Deal found 4/5![Southwest logo]()
$308
Last-minute flights from Chicago to Costa MesaDiscover last-minute flight deals from Chicago to Costa Mesa. Data last updated April 10, 2026 and is based on user searches.
Discover last-minute flight deals from Chicago to Costa Mesa. Data last updated April 10, 2026 and is based on user searches.
This Super.com deal was found by Cheapflights users on 4/8. 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.
Wed 4/222:15 pm
MDW
- LAX
1 stop9h 30m
Frontier
Sat 5/29:04 pm
LAX
- MDW
1 stop8h 37m
Frontier
Deal found 4/8![Frontier logo]()
$180
This CheapOair deal was found by Cheapflights users on 4/6. 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.
Tue 4/287:21 pm
ORD
- LAX
Nonstop4h 45m
Frontier
Sat 5/211:59 pm
LAX
- ORD
Nonstop4h 21m
Frontier
Deal found 4/6![Frontier logo]()
$159
This Cheapflightsfares deal was found by Cheapflights users on 4/10. 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 4/305:15 am
ORD
- LAX
Nonstop4h 20m
Spirit Airlines
Sat 5/25:30 am
LAX
- ORD
1 stop9h 41m
Spirit Airlines
Deal found 4/10![Spirit Airlines logo]()
$153
This Kiwi.com deal was found by Cheapflights users on 4/9. 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 5/17:21 pm
ORD
- LAX
Nonstop4h 45m
Frontier
Sun 5/1012:31 am
LAX
- ORD
Nonstop4h 08m
Frontier
Deal found 4/9![Frontier logo]()
$149
This Kiwi.com deal was found by Cheapflights users on 4/8. 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 5/26:16 pm
ORD
- LAX
1 stop7h 37m
Multiple Airlines
Sun 5/3112:26 am
LAX
- ORD
Nonstop4h 08m
Multiple Airlines
Deal found 4/8![Multiple Airlines logo]()
$151
This Cheapflightsfares deal was found by Cheapflights users on 4/8. 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 5/23:00 pm
ORD
- LAX
Nonstop4h 23m
Spirit Airlines
Sat 5/911:59 pm
LAX
- ORD
Nonstop4h 00m
Spirit Airlines
Deal found 4/8![Spirit Airlines logo]()
$154
This Kiwi.com deal was found by Cheapflights users on 4/6. 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 5/27:21 pm
ORD
- LAX
Nonstop4h 45m
Multiple Airlines
Mon 5/118:59 pm
LAX
- ORD
2 stops16h 04m
Multiple Airlines
Deal found 4/6![Multiple Airlines logo]()
$157
This Orbitz deal was found by Cheapflights users on 4/7. 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.
Sat 5/26:00 am
MDW
- LAX
1 stop8h 56m
Frontier
Wed 5/65:45 am
LAX
- MDW
1 stop6h 27m
Frontier
Deal found 4/7![Frontier logo]()
$177
This Kiwi.com deal was found by Cheapflights users on 4/8. 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 5/69:37 pm
ORD
- LAX
1 stop12h 58m
Frontier
Wed 5/133:28 pm
LAX
- ORD
1 stop14h 27m
Frontier
Deal found 4/8![Frontier logo]()
$155
This Frontier deal was found by Cheapflights users on 4/8. 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 5/78:56 pm
ORD
- LAX
Nonstop4h 40m
Frontier
Sun 5/3112:26 am
LAX
- ORD
Nonstop4h 08m
Frontier
Deal found 4/8![Frontier logo]()
$152
This Booking.com deal was found by Cheapflights users on 4/8. 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 5/219:37 pm
ORD
- LAX
1 stop19h 59m
Frontier
Tue 5/2612:26 am
LAX
- ORD
Nonstop4h 08m
Frontier
Deal found 4/8![Frontier logo]()
$150
This Frontier deal was found by Cheapflights users on 4/6. 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 5/299:37 pm
ORD
- LAX
1 stop12h 58m
Frontier
Sat 5/3012:26 am
LAX
- ORD
Nonstop4h 08m
Frontier
Deal found 4/6![Frontier logo]()
$158
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 April 10, 2026.
Search for one-way flight options from Chicago to Costa Mesa. Find affordable one-way fares based on user searches. Data last updated April 10, 2026.
This Super.com deal was found by Cheapflights users on 4/7. 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 4/286:10 am
MDW
- LAX
1 stop8h 26m
Frontier
Deal found 4/7![Frontier logo]()
$79
This Super.com deal was found by Cheapflights users on 4/6. 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.
Sat 5/96:55 am
ORD
- LAX
1 stop8h 33m
Frontier
Deal found 4/6![Frontier logo]()
$79
This Priceline deal was found by Cheapflights users on 4/8. 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.
Sat 5/26:00 am
MDW
- LAX
1 stop8h 56m
Frontier
Deal found 4/8![Frontier logo]()
$80
This Frontier deal was found by Cheapflights users on 4/6. 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 4/247:21 pm
ORD
- LAX
Nonstop4h 45m
Frontier
Deal found 4/6![Frontier logo]()
$80
This Super.com deal was found by Cheapflights users on 4/9. 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 4/216:16 pm
ORD
- LAX
1 stop7h 37m
Spirit Airlines
Deal found 4/9![Spirit Airlines logo]()
$81
This Priceline deal was found by Cheapflights users on 4/6. 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.
Wed 4/296:16 pm
ORD
- LAX
1 stop7h 37m
Spirit Airlines
Deal found 4/6![Spirit Airlines logo]()
$82
This Super.com deal was found by Cheapflights users on 4/6. 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.
Fri 5/88:56 pm
ORD
- LAX
Nonstop4h 40m
Frontier
Deal found 4/6![Frontier logo]()
$83
This Super.com deal was found by Cheapflights users on 4/6. 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.
Sun 5/35:15 am
ORD
- LAX
Nonstop4h 20m
Spirit Airlines
Deal found 4/6![Spirit Airlines logo]()
$84
This CheapOair deal was found by Cheapflights users on 4/6. 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 5/159:37 pm
ORD
- LAX
1 stop28h 39m
Frontier
Deal found 4/6![Frontier logo]()
$86
This Super.com deal was found by Cheapflights users on 4/6. 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.
Wed 4/226:16 pm
ORD
- LAX
1 stop7h 37m
Spirit Airlines
Deal found 4/6![Spirit Airlines logo]()
$87
This Flightnetwork deal was found by Cheapflights users on 4/9. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/286:16 pm
ORD
- LAX
1 stop7h 37m
Spirit Airlines
Deal found 4/9![Spirit Airlines logo]()
$88
This Trip.com deal was found by Cheapflights users on 4/7. 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.
Mon 5/47:15 am
ORD
- LAX
Nonstop4h 26m
Spirit Airlines
Deal found 4/7![Spirit Airlines logo]()
$89
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 April 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $149 (Kiwi.com) |
One-way from | $79 (Super.com) |
Popular in | December |
Cheapest in | September |
Average price | $297 |
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 April 10, 2026.
Use the filters below to find and compare flights from Chicago to Costa Mesa that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ChicagoLos Angeles
ORD - LAX
ORDLAX
Chicago O'Hare Intl
Wed 5/6
7:54 pm-10:35 pm
Nonstop4h 41m
Los Angeles
Wed 5/13
7:11 pm-1:18 am
Nonstop4h 07m
$199
ChicagoLos Angeles
ORD - LAX
ORDLAX
Chicago O'Hare Intl
Tue 6/23
7:35 am-10:01 am
Nonstop4h 26m
Los Angeles
Wed 7/1
5:15 pm-11:18 pm
Nonstop4h 03m
$217
ChicagoLos Angeles
ORD - LAX
ORDLAX
Chicago O'Hare Intl
Wed 5/6
10:30 am-5:25 pm
2 stops8h 55m
Los Angeles
Wed 5/13
11:15 pm-9:45 am
1 stop8h 30m
$224
ChicagoLos Angeles
MDW - LAX
MDWLAX
Chicago Midway
Tue 4/28
6:10 am-12:10 pm
2 stops8h 00m
Los Angeles
Thu 4/30
4:45 pm-10:40 pm
Nonstop3h 55m
$235
ChicagoLos Angeles
ORD - LAX
ORDLAX
Chicago O'Hare Intl
Wed 5/20
11:09 am-6:05 pm
1 stop8h 56m
Los Angeles
Tue 5/26
2:05 pm-11:57 pm
1 stop7h 52m
$237
Quickest round-trip
ChicagoLos Angeles
MDW - LAX
MDWLAX
Chicago Midway
Sat 5/2
6:00 pm-8:25 pm
Nonstop4h 25m
Los Angeles
Sat 5/9
11:55 pm-5:50 am
Nonstop3h 55m
$241
ChicagoLos Angeles
MDW - LAX
MDWLAX
Chicago Midway
Tue 5/19
6:10 am-12:10 pm
2 stops8h 00m
Los Angeles
Tue 5/26
7:50 am-4:55 pm
1 stop7h 05m
$245
ChicagoLos Angeles
ORD - LAX
ORDLAX
Chicago O'Hare Intl
Thu 5/7
4:50 pm-10:00 pm
1 stop7h 10m
Los Angeles
Wed 5/20
2:20 pm-11:55 pm
2 stops7h 35m
$245
ChicagoLos Angeles
MDW - LAX
MDWLAX
Chicago Midway
Tue 5/5
6:38 pm-11:50 pm
1 stop7h 12m
Los Angeles
Thu 5/7
12:10 pm-9:09 pm
1 stop6h 59m
$249
ChicagoLos Angeles
ORD - LAX
ORDLAX
Chicago O'Hare Intl
Thu 4/30
4:15 pm-11:20 pm
2 stops9h 05m
Los Angeles
Wed 5/6
2:20 pm-11:55 pm
2 stops7h 35m
$250
Showing 1-10 of 45 resultsSorted by cheapest first
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 April 3, 2026.
To ensure you get the cheapest price possible for a flight from Chicago to Costa Mesa, you should look to book at least 51 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 March is currently the most expensive (average of $167). 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 April 10, 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 16% 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 April 4, 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 April 10, 2026.
The most flights from CHI to CM3 are scheduled on a Thursday (115 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (88 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 April 10, 2026.
Peruse reviews from past customers who have flown with Southwest,United Airlines, andAmerican 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.
Boarding
8.1
Food
7.0
Overall
8.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Food
7.0
Overall
8.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Food
7.0
Overall
8.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Food
7.0
Overall
8.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Food
7.0
Overall
8.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Food
7.0
Overall
8.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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.
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Alternative routes for Chicago to Costa Mesa
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Complete your trip
Complete your trip to Costa Mesa by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Chicago to Costa Mesa by cabin class
Find flights from Chicago to Costa Mesa, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Chicago and Costa Mesa flights
Browse other Chicago and Costa Mesa flight options. Last updated on April 10, 2026.
Other flights from Chicago
Browse through other flights departing from Chicago. Flights are based on user searches made on Cheapflights and were last updated on April 10, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 April 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$69 | Average$174 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$83 | Average$232 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$128 | Average$358 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$139 | Average$502 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$174 | Average$431 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$192 | Average$395 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$199 | Average$329 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$213 | Average$464 | FlexibilityNo cancel fee | On-time63% |