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$436+ Cheap flights from Irvine, CA to Busan (PUS)

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 8/24. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — PUS
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheapflights Tip: The best prices from Irvine to Busan Gimhae are usually found in September or October, booked 44 days in advance, depart on a Wednesday or Monday and return on a Monday

Cheap flight deals from Irvine to Busan

Keep the following information in mind while searching for Irvine to Busan flight deals. Data was last updated July 31, 2025.

Round-trip from

$649
(Flightnetwork)

One-way from

$436
(FlightHub)

Popular in

December

Cheapest in

September

Average price

$1,577
From Irvine to Busan Gimhae
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One-way flight from Irvine to Busan Gimhae
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Highest demand for flights based on searches. 12% potential increase in price ($189 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($65 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Irvine to Busan

Cheapest flights from Irvine to Busan
Explore the most affordable flight options available from Irvine to Busan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

This Flightnetwork deal was found by Cheapflights users on 7/29. 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.
Sun 8/2412:30 pmLAX - PUS
1 stop31h 05mChina Eastern
Mon 9/812:35 pmPUS - LAX
1 stop37h 30mChina Eastern
Deal found 7/29$649
This Kiwi.com deal was found by Cheapflights users on 7/29. 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.
Sun 8/2410:50 amLAX - PUS
1 stop37h 45mMultiple Airlines
Mon 9/87:25 amPUS - LAX
2 stops26h 33mMultiple Airlines
Deal found 7/29$771
This oojo deal was found by Cheapflights users on 7/29. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1411:25 pmLAX - PUS
1 stop20h 20mAir China
Thu 9/412:45 pmPUS - LAX
1 stop23h 25mAir China
Deal found 7/29$835
This oojo deal was found by Cheapflights users on 7/30. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/311:00 pmLAX - PUS
2 stops30h 05mAsiana Airlines
Sat 9/137:30 amPUS - LAX
2 stops24h 30mAsiana Airlines
Deal found 7/30$878
This oojo deal was found by Cheapflights users on 7/29. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/212:55 amLAX - PUS
1 stop26h 05mChina Airlines
Sat 9/1310:20 amPUS - LAX
1 stop27h 15mChina Airlines
Deal found 7/29$928

Cheapflights Fare Finder

 
Customize your flight search to find flights from Irvine to Busan 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 July 31, 2025.
Use the filters below to find and compare flights from Irvine to Busan that are best for you.

Fly from

Irvine

Fly to

Busan

Route

Depart

Return

Price

Los AngelesBusan

LAX - PUS

LAXPUS

Los Angeles

Sun 8/24

12:30 pm-11:35 am

1 stop31h 05m

Busan Gimhae

Mon 9/8

12:35 pm-10:05 am

1 stop37h 30m

$649

Los AngelesBusan

LAX - PUS

LAXPUS

Los Angeles

Sun 8/24

10:50 am-4:35 pm

1 stop37h 45m

Busan Gimhae

Mon 9/8

7:25 am-5:58 pm

2 stops26h 33m

$771

Los AngelesBusan

LAX - PUS

LAXPUS

Los Angeles

Thu 8/14

11:25 pm-11:45 am

1 stop20h 20m

Busan Gimhae

Thu 9/4

12:45 pm-8:10 pm

1 stop23h 25m

$835

Los AngelesBusan

LAX - PUS

LAXPUS

Los Angeles

Wed 9/3

11:00 pm-9:05 pm

2 stops30h 05m

Busan Gimhae

Sat 9/13

7:30 am-4:00 pm

2 stops24h 30m

$878

Los AngelesBusan

LAX - PUS

LAXPUS

Los Angeles

Tue 9/2

12:55 am-7:00 pm

1 stop26h 05m

Busan Gimhae

Sat 9/13

10:20 am-9:35 pm

1 stop27h 15m

$928

Los AngelesBusan

LAX - PUS

LAXPUS

Los Angeles

Sat 8/23

11:55 pm-7:50 pm

1 stop27h 55m

Busan Gimhae

Sat 9/20

9:00 pm-8:40 pm

1 stop39h 40m

$1,089

Los AngelesBusan

LAX - PUS

LAXPUS

Los Angeles

Sun 8/24

12:30 pm-4:50 pm

1 stop36h 20m

$436

Los AngelesBusan

LAX - PUS

LAXPUS

Los Angeles

Sat 8/9

10:50 am-1:00 pm

1 stop34h 10m

$440

Los AngelesBusan

LAX - PUS

LAXPUS

Los Angeles

Sun 8/24

2:20 pm-11:45 am

1 stop29h 25m

$483

Los AngelesBusan

LAX - PUS

LAXPUS

Los Angeles

Sat 8/23

12:55 am-7:00 pm

1 stop26h 05m

$562

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 14 results
1
2

Best time to book a flight from Irvine to Busan

Have a flexible travel schedule? Discover the best time to fly to Busan from Irvine with our price prediction graph.
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 Irvine to Busan

How far ahead should I book a flight from Irvine to Busan?

Use this chart to determine the optimal time to book a round-trip flight from Irvine to Busan. Price data was last updated on July 25, 2025.

The best time to book flights from Irvine to Busan is 44 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Irvine to Busan?

Currently, August is the cheapest month in which you can book a flight from Irvine to Busan (average of $1,166). Flying from Irvine to Busan in December is currently the most expensive (average of $2,247). 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 IR9 to PUS?

Find hourly flight availability from Irvine to Busan. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 31, 2025.

When flying from Irvine to Busan, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Busan

Get insights into the airlines that provide service to Busan. 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 Busan. Reviews last updated July 31, 2025.
Get a feel of what it's like to fly with China Airlines, Asiana Airlines, and Singapore Airlines from Irvine to Busan by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
China Airlines
8.3
Very good
754 reviews

Overall

8.3

Comfort

8.0

Crew

8.5

Boarding

8.3

Food

7.8

Entertainment

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

SFO - TPE

Bad News - The flight was delayed and it was due to ground crew issues but the staff were moving things along. The seat size was cramp and i am a lean person. The attendant kept asking me in Chinese when i already stated i don’t speak the language. The food was bad. The taste, aroma, consistent of mush. Even a cafeteria lady can cook better food. Kudos - the pilot made up for lost time to the best of his ability. He made sure that the flight was smooth even though there was occasional turbulence. The landing was great.
China Airlines
8.3
Very good
754 reviews
China Airlines
8.3
Very good
754 reviews

Overall

8.3

Comfort

8.0

Crew

8.5

Boarding

8.3

Food

7.8

Entertainment

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

SFO - TPE

Bad News - The flight was delayed and it was due to ground crew issues but the staff were moving things along. The seat size was cramp and i am a lean person. The attendant kept asking me in Chinese when i already stated i don’t speak the language. The food was bad. The taste, aroma, consistent of mush. Even a cafeteria lady can cook better food. Kudos - the pilot made up for lost time to the best of his ability. He made sure that the flight was smooth even though there was occasional turbulence. The landing was great.
Asiana Airlines
8.2
Very good
468 reviews
China Airlines
8.3
Very good
754 reviews

Overall

8.3

Comfort

8.0

Crew

8.5

Boarding

8.3

Food

7.8

Entertainment

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

SFO - TPE

Bad News - The flight was delayed and it was due to ground crew issues but the staff were moving things along. The seat size was cramp and i am a lean person. The attendant kept asking me in Chinese when i already stated i don’t speak the language. The food was bad. The taste, aroma, consistent of mush. Even a cafeteria lady can cook better food. Kudos - the pilot made up for lost time to the best of his ability. He made sure that the flight was smooth even though there was occasional turbulence. The landing was great.
Singapore Airlines
8.1
Very good
1,338 reviews
China Airlines
8.3
Very good
754 reviews

Overall

8.3

Comfort

8.0

Crew

8.5

Boarding

8.3

Food

7.8

Entertainment

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

SFO - TPE

Bad News - The flight was delayed and it was due to ground crew issues but the staff were moving things along. The seat size was cramp and i am a lean person. The attendant kept asking me in Chinese when i already stated i don’t speak the language. The food was bad. The taste, aroma, consistent of mush. Even a cafeteria lady can cook better food. Kudos - the pilot made up for lost time to the best of his ability. He made sure that the flight was smooth even though there was occasional turbulence. The landing was great.
Cathay Pacific
7.6
Good
949 reviews
China Airlines
8.3
Very good
754 reviews

Overall

8.3

Comfort

8.0

Crew

8.5

Boarding

8.3

Food

7.8

Entertainment

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

SFO - TPE

Bad News - The flight was delayed and it was due to ground crew issues but the staff were moving things along. The seat size was cramp and i am a lean person. The attendant kept asking me in Chinese when i already stated i don’t speak the language. The food was bad. The taste, aroma, consistent of mush. Even a cafeteria lady can cook better food. Kudos - the pilot made up for lost time to the best of his ability. He made sure that the flight was smooth even though there was occasional turbulence. The landing was great.
Air China
7.3
Good
93 reviews
China Airlines
8.3
Very good
754 reviews

Overall

8.3

Comfort

8.0

Crew

8.5

Boarding

8.3

Food

7.8

Entertainment

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

SFO - TPE

Bad News - The flight was delayed and it was due to ground crew issues but the staff were moving things along. The seat size was cramp and i am a lean person. The attendant kept asking me in Chinese when i already stated i don’t speak the language. The food was bad. The taste, aroma, consistent of mush. Even a cafeteria lady can cook better food. Kudos - the pilot made up for lost time to the best of his ability. He made sure that the flight was smooth even though there was occasional turbulence. The landing was great.

Related info for your journey

Find useful and relevant information for your journey from Irvine to Busan. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Busan from Irvine?

    Busan Gimhae (PUS), located 7.2 mi from the city center, is the airport you fly into when you book flights from Irvine to Busan. 5 airlines have flights to Gimhae from Irvine on a regular basis. Booking flights from Irvine to Busan Gimhae should not be difficult; the airport handles an average of 0 inbound flights from Irvine per day.

  • What are the cheapest airlines to fly from Irvine to Busan one-way?

    $436 is the cheapest one-way deal found within the past few days, from China Eastern. You may also be able to find cheap deals on Air China and China Airlines, with prices starting from $483 and $562, respectively.

  • Can I find deals for flights from Irvine to Busan that include hotel bookings?

    Yes. In addition to deals on Irvine to Busan flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Irvine to Busan?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Irvine to Busan.

  • Can I find deals for business class flights from Irvine to Busan?

    Yes. Cheapflights offers flight deals from Irvine to Busan by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Irvine to Busan?

    Currently, August is the cheapest month in which you can book a flight from Irvine to Busan (average of $1,166). Flying from Irvine to Busan in December is currently the most expensive (average of $2,247). 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.

See more FAQs

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Top 5 airlines flying from Irvine to Busan

Discover the top 5 airlines that operate flights from Irvine to Busan. 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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest$640Average$776FlexibilityNo cancel feeOn-time62%
Air ChinaCheapest$680Average$794FlexibilityNo cancel feeOn-time67%
Cathay PacificCheapest$740Average$889FlexibilityNo cancel feeOn-time72%
China AirlinesCheapest$937Average$1,096FlexibilityNo cancel feeOn-time70%
Korean AirCheapest$1,175Average$1,458FlexibilityNo cancel feeOn-time81%

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