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Flights from Heihe to Seoul

Search cheap flights from Heihe to Seoul in the next 3 months. Based on Trip.com's latest 7-day data, one-way fares start at US$196, and round-trip tickets start at US$428.

      • HEK 13:15
        7h 55m
        1 stop
        ICN 22:10
        Heihe - Seoul | Mon, Aug 24 | China Southern Airlines
        ICN 19:50
        17h 5m
        1 stop
        HEK 11:55
        Seoul - Heihe | Mon, Aug 31 | China Southern Airlines
        US$428 US$609
        30% off
        30% off
        US$609 US$428
      • HEK 15:05
        23h 5m
        1 stop
        ICN 15:10
        Heihe - Seoul | Mon, Aug 24 | China Eastern Airlines
        ICN 19:50
        17h 5m
        1 stop
        HEK 11:55
        Seoul - Heihe | Mon, Aug 31 | China Southern Airlines
        US$472 US$609
        22% off
        22% off
        US$609 US$472
      • HEK 15:05
        19h 50m
        1 stop
        ICN 11:55
        Heihe - Seoul | Tue, Aug 4 | China Eastern Airlines
        ICN 18:25
        20h 50m
        1 stop
        HEK 14:15
        Seoul - Heihe | Tue, Aug 11 | China Eastern Airlines
        US$494 US$609
        19% off
        19% off
        US$609 US$494
      • HEK 15:05
        28h 40m
        1 stop
        ICN 20:45
        Heihe - Seoul | Sun, Jul 19 | China Eastern Airlines
        ICN 16:15
        23h
        1 stop
        HEK 14:15
        Seoul - Heihe | Tue, Jul 21 | China Eastern Airlines
        US$494
        19% off
        US$609 US$494
      • HEK 15:05
        23h 5m
        1 stop
        ICN 15:10
        Heihe - Seoul | Sat, Aug 22 | China Eastern Airlines
        ICN 12:55
        26h 20m
        1 stop
        HEK 14:15
        Seoul - Heihe | Sat, Aug 29 | China Eastern Airlines
        US$498
        18% off
        US$609 US$498
      • HEK 13:15
        7h 55m
        1 stop
        ICN 22:10
        Heihe - Seoul | Sun, Jul 19 | China Southern Airlines
        GMP 13:30
        23h 50m
        1 stop
        HEK 12:20
        Seoul - Heihe | Tue, Jul 21 | China Southern Airlines
        US$504
        17% off
        US$609 US$504
      • HEK 13:05
        22h 20m
        1 stop
        GMP 12:25
        Heihe - Seoul | Sat, Aug 22 | China Southern Airlines
        ICN 16:15
        23h
        1 stop
        HEK 14:15
        Seoul - Heihe | Sat, Aug 29 | China Eastern Airlines
        US$533
        12% off
        US$609 US$533
      • HEK 13:05
        22h 20m
        1 stop
        GMP 12:25
        Heihe - Seoul | Tue, Aug 4 | China Southern Airlines
        ICN 18:25
        20h 50m
        1 stop
        HEK 14:15
        Seoul - Heihe | Tue, Aug 11 | China Eastern Airlines
        US$554
        9% off
        US$609 US$554
      • HEK 13:00
        17h 25m
        1 stop
        SEL 14:00
        Heihe - Seoul | Fri, Jul 17 | Normal Airline
        SEL 15:00
        6h
        Nonstop
        HEK 16:00
        Seoul - Heihe | Sun, Jul 19 | Normal Airline
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      • HEK 13:05
        21h 40m
        1 stop
        ICN 11:45
        Heihe - Seoul | Thu, Sep 10 | China Southern Airlines
        US$196 US$246
        20% off
        20% off
        US$246 US$196
      • HEK 13:05
        21h 40m
        1 stop
        ICN 11:45
        Heihe - Seoul | Tue, Sep 1 | China Southern Airlines
        US$198 US$246
        20% off
        20% off
        US$246 US$198
      • HEK 13:05
        21h 40m
        1 stop
        ICN 11:45
        Heihe - Seoul | Sat, Sep 12 | China Southern Airlines
        US$198 US$246
        20% off
        20% off
        US$246 US$198
      • HEK 13:05
        21h 40m
        1 stop
        ICN 11:45
        Heihe - Seoul | Sat, Sep 5 | China Southern Airlines
        US$202
        18% off
        US$246 US$202
      • HEK 13:05
        21h 40m
        1 stop
        ICN 11:45
        Heihe - Seoul | Tue, Sep 8 | China Southern Airlines
        US$202
        18% off
        US$246 US$202
      • HEK 13:05
        21h 40m
        1 stop
        ICN 11:45
        Heihe - Seoul | Thu, Sep 3 | China Southern Airlines
        US$202
        18% off
        US$246 US$202
      • HEK 13:05
        21h 40m
        1 stop
        ICN 11:45
        Heihe - Seoul | Thu, Aug 6 | China Southern Airlines
        US$223
        9% off
        US$246 US$223
      • HEK 13:05
        21h 40m
        1 stop
        ICN 11:45
        Heihe - Seoul | Tue, Aug 4 | China Southern Airlines
        US$223
        9% off
        US$246 US$223
      • HEK 13:05
        21h 40m
        1 stop
        ICN 11:45
        Heihe - Seoul | Thu, Aug 20 | China Southern Airlines
        US$223
        9% off
        US$246 US$223
      • HEK 13:05
        21h 40m
        1 stop
        ICN 11:45
        Heihe - Seoul | Sat, Aug 22 | China Southern Airlines
        US$223
        9% off
        US$246 US$223
      • HEK 13:00
        17h 25m
        1 stop
        SEL 14:00
        Heihe - Seoul | Fri, Jul 17 | Normal Airline
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Cheapest airlines flights from Heihe to Seoul

You can choose from 1 airlines that fly from Heihe to Seoul, including China Southern Airlines, China Southern Airlines has lowest fares on this route.
China Southern Airlines logo China Southern Airlines
Airlines are determined based on actual purchased flight tickets from Heihe to Seoul according to previous 12 months data from Trip.com.

Heihe to Seoul Flight Details

The distance between Heihe and Seoul is about 1,407.49 km. Based on Trip.com's latest data, travel demand is highest in August. The off-season for travel is November.

Cheapest one-way flight priceUS$196
Cheapest return ticket priceUS$428
Cheapest monthNovember
Peak season for travelAugust
Flight distance1,407.49 km
Popular airlineChina Southern Airlines
Flight statistics for the Heihe–Seoul route are based on aggregated booking data from Trip.com over the past 12 months.

Frequently Asked Questions

  • What are the cheapest flights from Heihe to Seoul (HEK-SEL)?

    Based on Trip.com data, China Southern Airlines offers one-way fares as low as US$196 on Cheapest nonstop routes (e.g. HEK to ICN on Thu, Sep 10), while China Southern Airlines offers Cheapest nonstop round-trips from US$428 departing on Mon, Aug 24 and returning on Mon, Aug 31.
  • At the moment, several airlines serve connecting flights from Heihe to Seoul, including: China Southern Airlines Selected airlines are based on historical data collected from flight bookings made by users 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 Heihe 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 Heihe 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 Thu, Sep 10, with one-way flights priced at just US$196.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is China Southern 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 August.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Heihe to Seoul is November, when demand for travel is lower.
  • After crunching the numbers on our July flight calendar, it's currently cheapest to fly from Heihe to Seoul on July 19, 2026 with China Eastern Airlines, with prices starting at US$494.
  • You can land at any one of the following hubs in Seoul, with Heihe Aihui Airport to Incheon International Airport (HEK-ICN) is by far the most common option on this route: Gimpo International Airport (GMP) Incheon International Airport (ICN).
  • The time difference between Seoul and Heihe is 1h.
  • 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.

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

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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.