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$365+ 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 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — PUS
nov 30 — dic 71
dom 11/30
dom 12/7
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 46 days in advance, depart on a Wednesday or Monday and return on a Monday

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 ottobre 31, 2025.

This Gurufare deal was found by Cheapflights users on 10/28. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun 11/2411:30 amLAX - PUS
1 stop36h 20mChina Eastern
mar 12/165:50 pmPUS - LAX
1 stop32h 15mChina Eastern
Deal found 10/28$680
This FlightHub deal was found by Cheapflights users on 10/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer 11/511:30 amLAX - PUS
1 stop31h 05mChina Eastern
dom 11/2312:35 pmPUS - LAX
1 stop37h 30mChina Eastern
Deal found 10/30$697
This Kiwi.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun 12/19:25 amLAX - PUS
1 stop34h 35mMultiple Airlines
lun 12/228:20 amPUS - LAX
1 stop16h 05mMultiple Airlines
Deal found 10/27$733
This FlightHub deal was found by Cheapflights users on 10/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom 11/3011:30 amLAX - PUS
1 stop36h 20mChina Eastern
mar 12/1612:35 pmPUS - LAX
1 stop37h 30mChina Eastern
Deal found 10/28$744
This Gotogate deal was found by Cheapflights users on 10/29. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom 12/711:30 amLAX - PUS
1 stop31h 05mChina Eastern
dom 12/145:50 pmPUS - LAX
1 stop32h 15mChina Eastern
Deal found 10/29$745
This FlightHub deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
gio 11/2711:30 amLAX - PUS
1 stop31h 05mChina Eastern
lun 12/225:50 pmPUS - LAX
1 stop32h 15mChina Eastern
Deal found 10/27$758
This Trip.com deal was found by Cheapflights users on 10/30. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer 11/1911:30 amLAX - PUS
1 stop31h 05mChina Eastern
mer 12/35:50 pmPUS - LAX
1 stop32h 15mChina Eastern
Deal found 10/30$764
This Kiwi.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun 11/2410:00 pmLAX - PUS
2 stops39h 20mMultiple Airlines
lun 12/228:20 amPUS - LAX
1 stop16h 05mMultiple Airlines
Deal found 10/27$769
This Gotogate deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun 11/2411:30 amLAX - PUS
1 stop31h 05mChina Eastern
lun 12/2212:35 pmPUS - LAX
1 stop37h 30mChina Eastern
Deal found 10/27$772
This Gurufare deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun 11/2411:30 amLAX - PUS
1 stop31h 05mChina Eastern
dom 12/215:50 pmPUS - LAX
1 stop32h 15mChina Eastern
Deal found 10/27$787

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 ottobre 31, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$697
(Booking.com)

One-way from

$365
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$980
Provider with most accurate pricing for Los Angeles-Busan Gimhae flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-Busan Gimhae flights.
Search Deals
From Irvine to Busan Gimhae
Search Deals
One-way flight from Irvine to Busan Gimhae
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($146 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($48 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

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 ottobre 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

dom 11/30

11:30 am-4:50 pm

1 stop36h 20m

Busan Gimhae

mar 12/16

5:50 pm-9:05 am

1 stop32h 15m

$697

Los AngelesBusan

LAX - PUS

LAXPUS

Los Angeles

dom 12/7

11:30 am-11:35 am

1 stop31h 05m

Busan Gimhae

dom 12/14

5:50 pm-9:05 am

1 stop32h 15m

$747

Los AngelesBusan

LAX - PUS

LAXPUS

Los Angeles

mer 11/19

11:30 am-11:35 am

1 stop31h 05m

Busan Gimhae

mer 12/3

5:50 pm-9:05 am

1 stop32h 15m

$764

Los AngelesBusan

LAX - PUS

LAXPUS

Los Angeles

lun 11/24

11:30 am-11:35 am

1 stop31h 05m

Busan Gimhae

lun 12/22

12:35 pm-9:05 am

1 stop37h 30m

$772

Los AngelesBusan

LAX - PUS

LAXPUS

Los Angeles

lun 11/24

10:00 pm-6:20 am

2 stops39h 20m

Busan Gimhae

dom 12/14

7:20 am-7:25 am

1 stop17h 05m

$815

Los AngelesBusan

LAX - PUS

LAXPUS

Los Angeles

gio 11/6

9:25 am-2:00 pm

1 stop35h 35m

Busan Gimhae

dom 11/16

6:50 am-7:50 pm

2 stops30h 00m

$817

Los AngelesBusan

LAX - PUS

LAXPUS

Los Angeles

mar 1/13

12:25 pm-1:00 pm

1 stop31h 35m

Busan Gimhae

mar 1/27

6:00 pm-7:35 am

2 stops30h 35m

$829

Los AngelesBusan

LAX - PUS

LAXPUS

Los Angeles

mar 1/13

10:40 pm-10:50 am

1 stop19h 10m

Busan Gimhae

mar 1/27

11:50 am-7:25 pm

1 stop24h 35m

$860

Los AngelesBusan

LAX - PUS

LAXPUS

Los Angeles

ven 11/7

10:30 pm-10:50 am

1 stop19h 20m

Busan Gimhae

dom 11/16

6:50 am-7:50 pm

2 stops30h 00m

$860

Los AngelesBusan

LAX - PUS

LAXPUS

Los Angeles

mar 11/4

11:30 am-11:35 am

1 stop31h 05m

Busan Gimhae

lun 11/24

12:35 pm-9:05 am

1 stop37h 30m

$864

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 21 results
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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 October 24, 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, February is the cheapest month in which you can book a flight from Irvine to Busan (average of $574). Flying from Irvine to Busan in June is currently the most expensive (average of $1,398). 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 ottobre 31, 2025.

It’s optimal to fly from Irvine to Busan in the evening. By choosing this option you can save up to 30% on the cost of your flight, compared to a flight in the morning.

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 ottobre 31, 2025.
Get a feel of what it's like to fly with Korean Air, China Airlines, and Cathay Pacific 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.
Korean Air
8.4
Very good
1,155 reviews

Comfort

8.3

Entertainment

8.2

Food

8.1

Overall

8.4

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very good
1,155 reviews
Korean Air
8.4
Very good
1,155 reviews

Comfort

8.3

Entertainment

8.2

Food

8.1

Overall

8.4

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
China Airlines
8.3
Very good
776 reviews
Korean Air
8.4
Very good
1,155 reviews

Comfort

8.3

Entertainment

8.2

Food

8.1

Overall

8.4

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Cathay Pacific
7.6
Good
1,044 reviews
Korean Air
8.4
Very good
1,155 reviews

Comfort

8.3

Entertainment

8.2

Food

8.1

Overall

8.4

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
China Eastern
7.2
Good
174 reviews
Korean Air
8.4
Very good
1,155 reviews

Comfort

8.3

Entertainment

8.2

Food

8.1

Overall

8.4

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Air China
7.1
Good
119 reviews
Korean Air
8.4
Very good
1,155 reviews

Comfort

8.3

Entertainment

8.2

Food

8.1

Overall

8.4

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

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.

  • How long is the flight from Irvine to Busan?

    China Eastern can get you from Irvine to Busan in just under 36h 20m. Your travel time can differ by up to . The distance from Irvine to Busan is about 5974 mi.

  • 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, February is the cheapest month in which you can book a flight from Irvine to Busan (average of $574). Flying from Irvine to Busan in June is currently the most expensive (average of $1,398). 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 ottobre 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest$640Average$776FlexibilityNo cancel feeOn-time62%
Air ChinaCheapest$680Average$758FlexibilityNo cancel feeOn-time67%
Cathay PacificCheapest$760Average$871FlexibilityNo cancel feeOn-time72%
China AirlinesCheapest$918Average$1,098FlexibilityNo cancel feeOn-time70%
Korean AirCheapest$1,175Average$1,479FlexibilityNo cancel feeOn-time81%

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