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Flights from San Diego to Seoul

Hi, I've summed up all the key info for San Diego to Seoul flights

Cheapest one-way

US$ 365
Frontier Airlines Sat, Oct 24

49% below next 30d avg. (US$713)

Cheapest round-trip

US$ 691
Frontier Airlines Sat, Oct 31

When to fly

October Cheapest month
July Peak month

Recommended airlines

With a lowest one-way fare of US$365 , travelers can expect an average price of US$713 for upcoming trips, while round-trip tickets start at US$691 . You can land at any one of the following hubs in Seoul: Gimpo International Airport (GMP) , and Incheon International Airport (ICN) . Flying from San Diego International Airport to Incheon International Airport (SAN-ICN) is by far the most common option on this route. To secure the best rates, booking 40 days in advance is recommended, and the cheapest travel days are Tuesday, Wednesday, and Saturday .

Updated 3d ago · This content is an AI-powered summary based on Trip.com data. Prices and availability are subject to change. Please refer to actual prices, availability, and travel conditions.

Explore the cheapest one-way and round-trip flights from San Diego to Seoul over the next 90 days, with one-way fares from US$365 and round-trip from US$691. Based on Trip.com's latest 7-day flight data.

      • SAN 10:56
        18h 24m
        1 stop
        ICN 21:20
        San Diego - Seoul | Sat, Oct 31 | Frontier Airlines
        ICN 19:45
        15h 53m
        1 stop
        SAN 18:38
        Seoul - San Diego | Sat, Nov 7 | Air Premia
        US$691 US$898
        23% off
        23% off
        US$898 US$691
      • SAN 10:48
        18h 32m
        1 stop
        ICN 21:20
        San Diego - Seoul | Fri, Oct 30 | Frontier Airlines
        ICN 19:45
        15h 53m
        1 stop
        SAN 18:38
        Seoul - San Diego | Fri, Nov 6 | Air Premia
        US$747 US$898
        17% off
        17% off
        US$898 US$747
      • SAN 15:14
        36h 56m
        1 stop
        ICN 20:10
        San Diego - Seoul | Fri, Oct 23 | Frontier Airlines
        ICN 19:45
        14h 53m
        1 stop
        SAN 18:38
        Seoul - San Diego | Fri, Oct 30 | Air Premia
        US$802 US$898
        11% off
        11% off
        US$898 US$802
      • SAN 11:11
        18h 29m
        1 stop
        ICN 21:40
        San Diego - Seoul | Wed, Sep 23 | Alaska Airlines
        ICN 19:15
        15h 45m
        1 stop
        SAN 19:00
        Seoul - San Diego | Mon, Sep 28 | Air Premia
        US$814
        9% off
        US$898 US$814
      • SAN 10:28
        19h 12m
        1 stop
        ICN 21:40
        San Diego - Seoul | Fri, Sep 18 | Frontier Airlines
        ICN 18:00
        16h 19m
        1 stop
        SAN 18:19
        Seoul - San Diego | Sat, Sep 26 | Air Premia
        US$821
        9% off
        US$898 US$821
      • SAN 13:38
        22h 42m
        1 stop
        ICN 04:20
        San Diego - Seoul | Wed, Sep 23 | Frontier Airlines
        ICN 19:15
        15h 4m
        1 stop
        SAN 18:19
        Seoul - San Diego | Wed, Sep 30 | Air Premia
        US$835
        7% off
        US$898 US$835
      • SAN 15:14
        21h 6m
        1 stop
        ICN 04:20
        San Diego - Seoul | Wed, Oct 21 | Frontier Airlines
        ICN 19:45
        14h 53m
        1 stop
        SAN 18:38
        Seoul - San Diego | Wed, Oct 28 | Air Premia
        US$835
        7% off
        US$898 US$835
      • SAN 13:00
        17h 25m
        1 stop
        SEL 14:00
        San Diego - Seoul | Mon, Sep 14 | Normal Airline
        SEL 15:00
        6h
        Nonstop
        SAN 16:00
        Seoul - San Diego | Wed, Sep 16 | Normal Airline
        More cheap flights
        More cheap flights
      • SAN 15:14
        38h 6m
        1 stop
        ICN 21:20
        San Diego - Seoul | Sat, Oct 24 | Frontier Airlines
        US$365 US$439
        17% off
        17% off
        US$439 US$365
      • SAN 15:14
        38h 26m
        1 stop
        ICN 21:40
        San Diego - Seoul | Sat, Oct 17 | Frontier Airlines
        US$372 US$439
        15% off
        15% off
        US$439 US$372
      • SAN 07:00
        22h 40m
        1 stop
        ICN 21:40
        San Diego - Seoul | Mon, Sep 14 | Alaska Airlines
        US$392 US$439
        11% off
        11% off
        US$439 US$392
      • SAN 10:28
        19h 12m
        1 stop
        ICN 21:40
        San Diego - Seoul | Mon, Sep 21 | Frontier Airlines
        US$396
        10% off
        US$439 US$396
      • SAN 07:50
        21h 30m
        1 stop
        ICN 21:20
        San Diego - Seoul | Mon, Oct 26 | Alaska Airlines
        US$400
        9% off
        US$439 US$400
      • SAN 17:49
        35h 31m
        1 stop
        ICN 21:20
        San Diego - Seoul | Sat, Oct 24 | Alaska Airlines
        US$401
        9% off
        US$439 US$401
      • SAN 15:38
        36h 42m
        1 stop
        ICN 21:20
        San Diego - Seoul | Thu, Nov 5 | Alaska Airlines
        US$403
        8% off
        US$439 US$403
      • SAN 16:36
        37h 4m
        1 stop
        ICN 21:40
        San Diego - Seoul | Thu, Oct 1 | Frontier Airlines
        US$403
        8% off
        US$439 US$403
      • SAN 10:27
        19h 13m
        1 stop
        ICN 21:40
        San Diego - Seoul | Mon, Oct 19 | Frontier Airlines
        US$408
        7% off
        US$439 US$408
      • SAN 13:00
        17h 25m
        1 stop
        SEL 14:00
        San Diego - Seoul | Mon, Sep 14 | Normal Airline
        More cheap flights
        More cheap flights

Which airlines are the most popular for San Diego to Seoul flights?

You can choose from 2 airlines that fly from San Diego to Seoul, including Air Premia, Delta Air Lines, Frontier Airlines has lowest fares on this route.
Air Premia logo Air Premia
Delta Air Lines logo Delta Air Lines
Airlines are determined based on actual purchased flight tickets from San Diego to Seoul according to previous 12 months data from Trip.com.

San Diego to Seoul Flight Information

The distance between San Diego and Seoul is about 9,765.17 km. Based on Trip.com's latest data, travel demand is highest in July. The off-season for travel is October.

Cheapest one-way flight price US$365
Cheapest return ticket price US$691
Cheapest month October
Peak season for travel July
Flight distance 9,765.17 km
Popular airline Air Premia
Flight statistics for the San Diego–Seoul route are based on aggregated booking data from Trip.com over the past 12 months.

Trip.com Price Trends on Flights from San Diego to Seoul

Which month has the cheapest one-way flights from San Diego to Seoul?

Average monthly one-way flight prices from San Diego to Seoul, based on bookings made by Trip.com users over the past 12 months.

Based on Trip.com’s data, the cheapest month for flights from San Diego to Seoul is November, with an average price of US$557; while the month with the highest flight price is usually May, with an average price of up to US$941.

US$941
US$749
US$557
US$365
    Cheapest
  • US$578
    Sep
  • US$668
    Oct
  • US$557
    Nov
  • US$774
    Dec
  • US$690
    Jan
  • US$569
    Feb
  • US$728
    Mar
  • US$654
    Apr
  • US$941
    May
  • US$900
    Jun
  • US$606
    Jul
  • US$747
    Aug

Frequently Asked Questions

  • What are the cheapest flights from San Diego to Seoul (SAN-SEL)?

    Based on Trip.com data, Frontier Airlines offers one-way fares as low as US$365 on Cheapest nonstop routes (e.g. SAN to ICN on Sat, Oct 24), while Frontier Airlines offers Cheapest nonstop round-trips from US$691 departing on Sat, Oct 31 and returning on Sat, Nov 7.
  • At the moment, you can catch a nonstop flight from San Diego to Seoul with the following airlines, including: Air Premia Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from San Diego to Seoul is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • To find best deals on flights from San Diego to Seoul, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Sat, Oct 24, with one-way flights priced at just US$365.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Frontier Airlines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Seoul travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from San Diego to Seoul is October, when demand for travel is lower.
  • After crunching the numbers on our September flight calendar, it's currently cheapest to fly from San Diego to Seoul on September 18, 2026 with Frontier Airlines, with prices starting at US$380.
  • You can land at any one of the following hubs in Seoul: Gimpo International Airport (GMP), and Incheon International Airport (ICN). Flying from San Diego International Airport to Incheon International Airport (SAN-ICN) is by far the most common option on this route.
  • The time difference between Seoul and San Diego is 17h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.
  • Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from San Diego to Seoul is US$713. Fares vary by travel date, airline and availability.
  • Enter San Diego and Seoul, choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveler details and complete payment to receive your confirmation.
  • Frontier Airlinesare the most popular budget airlines flying from San Diego to Seoul. Check baggage, seat and payment fees before comparing the final price.

Trip.com Airline Insights on Flights from San Diego to Seoul

Which airline offers the cheapest direct flights from San Diego to Seoul?

Data is based on the average price of all nonstop flights from San Diego to Seoul on Trip.com over the past 12 months.

Based on Trip.com’s data from the past 12 months, United Airlines provides the lowest-priced direct flights from San Diego to Seoul, with fares starting at US$713.

US$548
US$713
US$879
US$1,045
US$1,210
United Airlines
US$713
United Airlines
Asiana Airlines
US$788
Asiana Airlines
Delta Air Lines
US$835
Delta Air Lines
Alaska Airlines
US$847
Alaska Airlines
Korean Air
US$864
Korean Air
Air Canada
US$1,210
Air Canada

Explore More Popular Flights

Note: Prices shown on this page are the estimated lowest prices found in the last 24 hours and include all taxes and fees.

Book with no extra fees

Prices displayed on this page are all-inclusive (incl. taxes, fuel surcharges, Civil Aviation Development Fund, etc.), and all fees are clearly shown before you pay. Charges for checked baggage, onboard meals, Wi‑Fi, and other optional services are also included where applicable in the flight cards.

Real-time pricing updates

Prices, availability, and travel details on this page have been updated within the last 24 hours, and for many routes are refreshed in real time. The more popular the route, the more accurate and up-to-date the data.

Change & Cancellation Policy

Trip.com shows the change and cancellation rules for each ticket during the booking process, including all related fees and conditions. Please refer to the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply based on the airline’s fare rules.
Cancellation/change due to a flight schedule change:
If your flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For full details of change and cancellation policies, please refer to the customer support pages.