FLIGHT SAVINGS

How to save on flights from London to Seoul

Our analysis of past searches finds effective ways to save on flights from London to Seoul. If flights to Seoul seem too expensive right now, these alternative booking strategies can help you get a cheaper fare. Our data shows savings of 0–15% on this route.

Content

    LON
    SEL

Book a LON-SEL roundtrip that costs less

Airlines often price the London to Seoul round-trip below the one-way, so you buy the pair and never fly the return. That is a spare return, a form of throwaway ticketing, and nothing is skipped mid-ticket: your checked bag and your outbound are unaffected. When the fare allows it, you can also reschedule or cancel the extra return.

StrategySpare return
Success ratemedium
Typical savings0–15%
Checked bagYes ✔️

Examples

  • Lufthansa · Economy

    Sep 26 · 11:30 am - 9:55 am +1

    LHR - ICN

    1 stop
    14h25m

    $1,380

    Spare return
    Continue

    • Depart

      Sat, Sep 26

        • LHR - ICN

    • Return

      Tue, Oct 20

      Spare return

        • ICN - LHR

  • Lufthansa · Economy

    Sep 25 · 9:30 am - 9:55 am +1

    LHR - ICN

    2 stops
    16h25m

    $1,300

    Spare return
    Continue

  • Lufthansa · Economy

    Aug 28 · 10:30 am - 9:55 am +1

    LHR - ICN

    1 stop
    15h25m

    $821

    Spare return

Combine your trip with other upcoming flights

  • LON
    SEL
  • LON

If you have other trips coming up, try combining them with the Seoul one. Our multisearch engine searches several trips at once and finds ticket arrangements that cost less than the sum of their parts, such as nested or back-to-back tickets. The other trip can be to Seoul again or somewhere else entirely, and it can be months away.

Questions about saving on flights to Seoul

Can I buy a round-trip to Seoul and not fly the return?

Yes, that is a spare return: nothing on the ticket is cancelled, you simply forfeit the return. On this route the round-trip priced below the one-way on a good share of searches, saving 0–15%.

Is a hidden-city ticket safe on flights to Seoul?

We have not found a hidden city here: across our searches from London to Seoul, no ticket routed through Seoul priced below the Seoul fare.

Can I use a hidden-city ticket on a round trip to Seoul?

Not on a plain round-trip: skipping a segment cancels everything after it, so you would lose the return. What works is a hidden return, one multicity ticket from London to Seoul and then from Seoul to a third city routed through London, where you get off.

Is an open-jaw ticket cheaper than a one-way to Seoul?

Not on this route so far: across our searches from London to Seoul, no open-jaw priced below the plain one-way, so no spare multicity to report.

These saving methods are found automatically by our flight search engine. For the full picture of the strategies and their trade-offs, see our guide to Airglitch booking strategies.

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Updated on September 4, 2026