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£333+ Cheap flights to Costa Mesa

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 11/4. Fares are subject to change and may not be available on all flights or dates of travel.
— SAN
9 Apr — 16 Apr1
1 adult
1 adult, Economy, 0 bags

Flights to Costa Mesa in 2026

Enter your travel dates to find the best prices.

Cheapest flights to Costa Mesa
Explore the most affordable flight options available to Costa Mesa. Find the lowest fares based on data from user searches, with prices last updated on 10 March 2026.

Sat 21/310:20
LHR
-
LAX
1 stop14h 40m
Scandinavian Airlines
Tue 14/419:10
LAX
-
LHR
1 stop15h 20m
Scandinavian Airlines
Deal found 5/3£357
Sat 4/410:00
LHR
-
LAX
1 stop18h 22m
United Airlines
Tue 21/411:40
LAX
-
LHR
1 stop14h 45m
United Airlines
Deal found 6/3£359
Mon 16/306:00
LHR
-
LAX
1 stop18h 35m
SWISS
Mon 30/319:35
LAX
-
LHR
1 stop14h 15m
SWISS
Deal found 9/3£360
Thu 12/316:55
LHR
-
LAX
Nonstop11h 30m
British Airways
Tue 17/320:30
LAX
-
LHR
Nonstop10h 30m
British Airways
Deal found 5/3£362
Wed 15/407:30
LHR
-
LAX
1 stop17h 40m
Multiple Airlines
Mon 27/416:05
LAX
-
LHR
1 stop13h 50m
Multiple Airlines
Deal found 5/3£363
Tue 9/614:05
LHR
-
LAX
1 stop15h 24m
Air Canada
Tue 16/614:35
LAX
-
LHR
1 stop14h 45m
Air Canada
Deal found 7/3£366
Tue 23/613:00
LHR
-
LAX
1 stop17h 37m
United Airlines
Thu 2/712:46
LAX
-
LHR
1 stop12h 54m
United Airlines
Deal found 7/3£368
Sat 13/610:05
LGW
-
LAX
Nonstop11h 15m
Norse Atlantic UK
Sat 11/716:30
LAX
-
LGW
Nonstop10h 25m
Norse Atlantic UK
Deal found 10/3£368
Sat 4/413:40
LHR
-
LAX
1 stop18h 04m
United Airlines
Mon 20/407:00
LAX
-
LHR
1 stop17h 30m
United Airlines
Deal found 6/3£369
Mon 30/312:15
LHR
-
LAX
1 stop19h 29m
United Airlines
Mon 6/406:45
LAX
-
LHR
1 stop17h 00m
United Airlines
Deal found 10/3£371
Fri 17/408:20
LHR
-
LAX
Nonstop11h 10m
British Airways
Thu 23/410:39
LAX
-
LHR
1 stop13h 01m
British Airways
Deal found 5/3£373
Wed 24/610:50
LGW
-
LAX
Nonstop11h 20m
Norse Atlantic UK
Sat 18/716:30
LAX
-
LGW
Nonstop10h 25m
Norse Atlantic UK
Deal found 7/3£375

Find flight deals to Costa Mesa

Find the latest flights to Costa Mesa in 2026, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 10 March 2026.

Return from

£359

One-way from

£333

Popular in

December

Cheapest in

September

Average price

£455
United Airlines
  • United Airlines
  • 4/4-21/4
  • 2 total stops
  • 33h 07m total
  • London to Los Angeles
Search Deals
Austrian Airlines
  • Austrian Airlines
  • 31/8
  • 1 total stop
  • 25h 35m total
  • London to Costa Mesa
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£34 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for return flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Locate flights to Costa Mesa that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 10 March 2026.
Use the filters below to find and compare flights to Costa Mesa that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Tue 26/5

06:55-15:15

1 stop16h 20m

Los Angeles Los Angeles

Tue 2/6

07:30-07:25

1 stop15h 55m

£398

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Thu 7/5

07:30-17:10

1 stop17h 40m

Los Angeles Los Angeles

Sat 9/5

23:05-21:40

1 stop14h 35m

£400

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Fri 17/4

07:25-15:15

1 stop15h 50m

Los Angeles Los Angeles

Sun 3/5

15:30-10:10

Nonstop10h 40m

£407

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Tue 1/9

09:30-16:20

1 stop14h 50m

Los Angeles Los Angeles

Tue 22/9

11:00-09:40

1 stop14h 40m

£411

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Sat 5/9

07:25-15:15

1 stop15h 50m

Los Angeles Los Angeles

Mon 7/9

12:45-09:40

1 stop12h 55m

£419
Fastest return journey

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Wed 29/7

15:15-23:04

1 stop15h 49m

Los Angeles Los Angeles

Sun 9/8

16:20-10:50

Nonstop10h 30m

£440

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Wed 25/3

07:40-17:27

1 stop16h 47m

Los Angeles Los Angeles

Fri 17/4

07:00-09:40

1 stop18h 40m

£447

LondonLos Angeles

LGW - LAX

LGWLAX

London Gatwick

Wed 6/5

11:30-13:35

2 stops34h 05m

Los Angeles Los Angeles

Sun 10/5

17:50-20:00

1 stop18h 10m

£449

LondonLos Angeles

LGW - LAX

LGWLAX

London Gatwick

Wed 10/6

10:45-22:12

1 stop19h 27m

Los Angeles Los Angeles

Mon 22/6

21:45-06:50

1 stop25h 05m

£451

LondonLos Angeles

LHR - LAX

LHRLAX

London Heathrow

Thu 9/4

13:05-16:15

Nonstop11h 10m

Los Angeles Los Angeles

Tue 14/4

08:47-09:40

1 stop16h 53m

£455

Flights are sorted by cheapest return flights first.

Deals found on 8/3

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

Best time to book a flight to Costa Mesa

Have a flexible travel schedule? Discover the best time to fly to Costa Mesa with our price prediction graph.
Estimated return 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 to Costa Mesa

When is the best time to book a flight to Costa Mesa?

Use this chart to determine the optimal time to book a return flight from London to Costa Mesa. Price data was last updated on 6 March 2026.

Booking 37 days in advance of your planned departure date is, on average, the best time to get cheap flights to Costa Mesa. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

How long is the flight to Costa Mesa?

On average, a flight from London to Costa Mesa takes 13 hours 39 minutes. Flights to Costa Mesa from other popular cities in United Kingdom will vary in length. Below are a few examples of popular routes and their flight times.

What are the most popular airlines that fly to Costa Mesa?

The most popular airlines flying from London to Costa Mesa are Virgin Atlantic, British Airways and Lufthansa.

British Airways
British Airways
From £323
Virgin Atlantic
Virgin Atlantic
From £355
KLM
KLM
From £353
Scandinavian Airlines
Scandinavian Airlines
From £333

What are the cheapest airlines that fly to Costa Mesa?

The cheapest airlines flying from London to Costa Mesa are Iberia, Norse Atlantic UK and SWISS.

Rainfall in Costa Mesa by month

Plan your trip to Costa Mesa by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Costa Mesa ranges from 0.0 - 87.0 inches per month. February is typically the wettest month, when rainfall can reach 87.0 mm. July is typically the driest time to visit Costa Mesa when rainfall is around 0.0 mm.

Temperature in Costa Mesa by month

Plan your trip to Costa Mesa by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Costa Mesa, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 14.0 C).

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 10 March 2026.
Get a feel of what it's like to fly with KLM,Virgin Atlantic, andNorse Atlantic UK to the United States by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,468 reviews
Check prices

Overall

7.8

Boarding

7.8

Entertainment

7.1

Comfort

7.6

Crew

8.4

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
KLM
7.8
Good
1,468 reviews
KLM
7.8
Good
1,468 reviews
Check prices

Overall

7.8

Boarding

7.8

Entertainment

7.1

Comfort

7.6

Crew

8.4

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
Virgin Atlantic
7.5
Good
680 reviews
KLM
7.8
Good
1,468 reviews
Check prices

Overall

7.8

Boarding

7.8

Entertainment

7.1

Comfort

7.6

Crew

8.4

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
Norse Atlantic UK
7.3
Good
KLM
7.8
Good
1,468 reviews
Check prices

Overall

7.8

Boarding

7.8

Entertainment

7.1

Comfort

7.6

Crew

8.4

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
Lufthansa
6.8
Okay
7,841 reviews
KLM
7.8
Good
1,468 reviews
Check prices

Overall

7.8

Boarding

7.8

Entertainment

7.1

Comfort

7.6

Crew

8.4

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
British Airways
6.7
Okay
7,781 reviews
KLM
7.8
Good
1,468 reviews
Check prices

Overall

7.8

Boarding

7.8

Entertainment

7.1

Comfort

7.6

Crew

8.4

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

FAQs about flying to Costa Mesa

  • Can I find cheaper flights to Costa Mesa if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Costa Mesa on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Costa Mesa?

    Based on reviews from Cheapflights users, Virgin Atlantic is rated the highest out of the airlines that fly to Costa Mesa.

  • How much is a return flight to Costa Mesa?

    A return flight to Costa Mesa will typically cost around £298, however they can be found for as little as £136.

  • Where does the fastest flight to Costa Mesa depart from?

    For those looking to save time traveling to Costa Mesa, London offers the quickest one-way flight (11 hours 5 minutes).

  • Does San Diego have car hire?

    Yes. Those touching down at San Diego can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to San Diego?

    Yes. San Diego has hotels nearby for those requiring accommodations. Sheraton San Diego Resort is the closest property to San Diego (0.0 mi away from San Diego).

See more FAQs

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Why should you use Cheapflights to find cheap flight tickets to Costa Mesa?

Millions of users choose and trust Cheapflights to book the best flight deals to Costa Mesa for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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