ICN

Find Cheap Flights from Bangkok to Seoul Incheon Airport – Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 30% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Everything you should know

Direct flights
You can fly direct with Korean Air, Thai Airways, and others. Average duration is 5h 20m.
Direct flights
+1
Direct flights
+1
Top routes
Cheapest • 12% average savings
Most popular
Insights
Insights
Avoid delays
Most punctual • 97% on-time
Best time • Fewest delays
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 3 weeks in advance save around 9% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 18% price drop
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Cheapest • Avg ฿7,829 (return)
Shortest trip • 9h 27m (one-way)
Insights
Insights
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you enjoy your trip to Incheon Intl Airport!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Bangkok to Incheon Intl

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Bangkok to Incheon Intl

Multiple Airlines Logo
TH1  Glasgow Thorntonhall-ICN Seoul Incheon Airport
5911 kmmulti-stop
Multiple Airlines Logo
ICN  Seoul Incheon Airport-TH1 Glasgow Thorntonhall
5911 kmmulti-stop
Multiple Airlines
Booking Insights

Price, demand, and travel trends for Bangkok to Incheon Intl Airport flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

What's the cheapest day of the week to fly from Bangkok to Incheon Intl Airport?

Based on deals KAYAK users found in the last 12 months, Tuesday is the cheapest day of the week to fly from Bangkok to Incheon Intl Airport. It’s 3% cheaper than the average day, while Sunday is the most expensive, with prices 7% higher.

What is the cheapest month to fly from Bangkok to Incheon Intl Airport?

•March is the cheapest month to fly from Bangkok to Incheon Intl Airport at ฿8,639 return.
•December (฿11,710) and May (฿11,642) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 35% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Bangkok to Incheon Intl Airport the cheapest?

Flights from Bangkok to Incheon Intl Airport are cheapest 3 weeks before departure. Booking in this window typically costs about 9% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Key details for Bangkok to Incheon Intl Airport flights

Low season

July
Beat the crowds with an average 29% drop in traveller numbers.
The most popular month to fly with an average 38% increase in traveller numbers.

When to book flights from Bangkok to Incheon Intl

Are your dates flexible? Find out the best times to travel from Bangkok to Incheon Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Flights from Bangkok to Incheon Intl: the best tips from KAYAK users' own experiences

Insights shared by verified travellers who flew the route from Bangkok to Incheon Intl 
Verified travelerFlew with Asiana Airlines-Jun 2025
Do not check a suitcase take a carry on
Verified travelerFlew with ฮาวายเอี้ยนแอร์ไลน์-Sep 2024
I will not fly to ICN and transfer to Hawaiian again. Both Asiana and KAL are good flights to ICN. And their lounges are both good. But if flying onward, stay with Asiana or KAL connections. ICN doesn’t do terminal connections well.
ArthurFlew with เดลต้า-Jul 2024
Make sure to select an aisle seat. Korean Aur flight attendants are. very nice and try to help . My overhearing light was broken !

Your Bangkok to Incheon Intl Airport flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines, and booking tips.

  • What are the earliest and latest flights from Bangkok to Incheon Intl Airport?

    These are the earliest and latest flight times available from Bangkok to Incheon Intl Airport:

    • Earliest: departs at 01:00 and lands at 06:20
    • Latest: departs at 23:55 and lands at 05:15.

    The flight takes about 5h 20m.

  • Which cabin classes can I book on flights from Bangkok to Incheon Intl Airport?

    Three cabin classes are available on flights from Bangkok to Incheon Intl Airport:

    • Economy class
    • Premium Economy Class
    • Business Class

  • How long is a flight from Bangkok to Incheon Intl Airport?

    A direct flight from Bangkok to Incheon Intl Airport takes 5h 20m, covering 5,911 km.

  • Do I need a passport to fly from Bangkok to Incheon Intl Airport?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Bangkok to Incheon Intl Airport flight?

    Return flights from Bangkok to Incheon Intl Airport range from ฿8,170 to ฿13,308, with an average of ฿10,563 over the past 12 months. Anything below ฿8,170 counts as a good deal.

  • How expensive are last-minute Bangkok to Incheon Intl Airport flights?

    Last-minute fares on this route (booked within two weeks of departure) run 3% above the ฿10,563 route average. Book 3 weeks before departure for the lowest fares.

  • How much can I save by having a stopover when flying from Bangkok to Incheon Intl Airport?

    On this route, stopover flights are cheaper than direct options on average. Stopover fares average ฿7,829 return via Ho Chi Minh City (SGN), compared with ฿10,584 for direct.

  • How does on-time performance compare across airlines flying from Bangkok to Incheon Intl Airport?

    Thai Lion Air is slightly above the route average for timely arrivals, while AIR PREMIA has a lower on-time arrival rate. On-time arrival rates on Bangkok to Incheon Intl Airport flights are:

    • Thai Lion Air: 97% on time
    • AIR PREMIA: 93% on time
    • Air Busan: 93% on time

    On average, flights on this route are punctual 76% of the time.

  • What is the standard checked bag allowance on flights from Bangkok to Incheon Intl Airport?

    There is no standard. Checked bag policies vary by airline on this route. Most carriers charge ฿78–฿3,374 for the first checked bag in Economy. Premium fares and elite status bookings typically include a free checked bag.

  • How are flight departures from Bangkok to Incheon Intl Airport spread across the day?

    Night is the busiest departure period on Bangkok to Incheon Intl Airport flights, with 78% leaving in that window. Morning departures account for 15%, Afternoon flights for 7%, and Evening flights for 0%.

  • Which airlines offer Wi-Fi on Bangkok to Incheon Intl Airport flights?

    Asiana Airlines is the only airline on the Bangkok to Incheon Intl Airport route offering in-flight Wi-Fi. Pricing depends on fare class.

  • Which car hire options are available at Incheon Intl Airport (ICN)?

    Incheon Intl Airport (ICN) hosts 5 major car rental companies, with daily rates starting from around ฿406 for economy cars. Top options include:

    • WECAR
    • Wheego
    • Yesaway
    • Alamo
    • Enterprise Rent-A-Car

  • Which airports can I use when flying from Bangkok to Incheon Intl Airport?

    Flights from Bangkok to Incheon Intl Airport may depart from several airports in Bangkok area, including Bangkok Suvarnabhumi (BKK) and Bangkok Don Mueang Intl (DMK). Flights usually arrive at Incheon Intl (ICN).

  • What time of day has the fewest delays on flights from Bangkok to Incheon Intl Airport?

    Morning flights have the fewest delays on this route, while afternoon departures tend to have the most.

  • At what point is a flight considered delayed on the route from Bangkok to Incheon Intl Airport?

    A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Bangkok to Incheon Intl Airport route, 24% of flights were delayed in the past three months, with delays averaging 2h 15m.

  • Which airports do connecting flights from Bangkok to Incheon Intl Airport pass through?

    One-stop flights from Bangkok to Incheon Intl Airport most commonly connect through:

    • Hong Kong Intl (HKG) – 46% of one-stop connections
    • Xiamen Gaoqi Intl (XMN) – 14% of one-stop connections
    • Hanoi Noibai (HAN) – 12% of one-stop connections
    • Da Nang (DAD) – 6% of one-stop connections

  • Can I save money by using flexible dates for flights from Bangkok to Incheon Intl Airport?

    Yes. Flexible dates can save you up to 10% on flights from Bangkok to Incheon Intl Airport. Tuesday is the cheapest departure day at ฿10,259 return on average, while Sunday is the most expensive at ฿11,305, a difference of ฿1,046.

    KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

  • Which airlines fly from Bangkok to Incheon Intl Airport?

    9 airlines operate flights between Bangkok and Incheon Intl Airport. The airlines offering direct flights on this route include:

    • Korean Air
    • Thai Airways
    • Asiana Airlines
    • Eastar Jet
    • Thai Vietjet Air
    • Trinity Airways (Formerly T'way Air)

  • How much time can I save by choosing a different stopover airport from Bangkok to Incheon Intl Airport?

    Flying via Ho Chi Minh City (SGN) gives the shortest average 1-stop total travel time of 8h 57m, compared to 9h 27m via Beijing Capital (PEK) and 9h 43m via Da Nang (DAD).

  • What is the time difference between Bangkok and Incheon Intl Airport?

    Incheon Intl Airport is 2 hours ahead of Bangkok (Korean Time vs Indochina Time). Plan for the time shift when scheduling connections or first-day activities.

  • Which airlines offer extra legroom and free seat selection on Bangkok to Incheon Intl Airport flights?

    Among airlines operating Bangkok to Incheon Intl Airport flights:

    • Thai Vietjet Air: offers free seat selection
    • AIR PREMIA: offers free seat selection
    • Thai Airways: offers free seat selection
    • Asiana Airlines: offers free seat selection
    • Thai AirAsia: offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines include bags at no extra cost on Bangkok to Incheon Intl Airport flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • Thai Vietjet Air: a cabin bag and a checked bag in Economy class
    • Trinity Airways (Formerly T'way Air): a cabin bag and a checked bag in Economy class
    • Jeju Air: a cabin bag and a checked bag in Economy class

    Baggage allowance can vary by ticket type, cabin class, route, and airline, so always check the fare details before booking.

Your guide to booking Bangkok to Incheon Intl Airport flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Tuesday departure and avoid flying on Sunday. On this route, Tuesday flights average ฿10,259, about ฿1,046 less than Sunday fares (9% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 3 weeks before you fly. On this route, that window historically saves about 9% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Bangkok to Incheon Intl Airport trip for March. Fares historically average ฿8,639 return in that month – typically ฿3,071 less than the most expensive month, which is December (based on the last 12 months).
  • For the best chance of arriving on time, fly with Thai Lion Air. Over the past three months, 97% of Thai Lion Air flights from Bangkok to Incheon Intl Airport arrived on time, slightly above the route average of 76%. When flights on this route arrive late, they're delayed by an average of 2h 15m, so choosing an airline with strong on-time performance can make a difference if you're on a tight schedule.
  • If you have the time, taking a 1-stop flight through Ho Chi Minh City Airport (SGN) can be cheaper than flying direct. The cheapest stopover option averages ฿7,829 return on this route – about ฿2,755 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Incheon Intl Airport.

    • Grand Hyatt Incheon
    • Best Western Premier Incheon Airport
    • Hotel Hu Incheon Airport

Prefer to fly direct from Bangkok to Incheon Intl?

 
Find which airlines fly direct from Bangkok to Incheon Intl Airport, which days they fly and book direct flights.

Direct departures

Bangkok to Incheon Intl

Monday

AIR PREMIA,Asiana Airlines,Eastar Jet, +5 more

AIR PREMIA,Asiana Airlines, +6 more

Tuesday

AIR PREMIA,Asiana Airlines,Eastar Jet, +5 more

AIR PREMIA,Asiana Airlines, +6 more

Wednesday

Asiana Airlines,Eastar Jet,Korean Air, +4 more

Asiana Airlines,Eastar Jet, +5 more

Thursday

AIR PREMIA,Asiana Airlines,Eastar Jet, +5 more

AIR PREMIA,Asiana Airlines, +6 more

Friday

AIR PREMIA,Asiana Airlines,Eastar Jet, +5 more

AIR PREMIA,Asiana Airlines, +6 more

Saturday

Asiana Airlines,Eastar Jet,Jeju Air, +4 more

Asiana Airlines,Eastar Jet, +5 more

Sunday

AIR PREMIA,Asiana Airlines,Eastar Jet, +5 more

AIR PREMIA,Asiana Airlines, +6 more

See more direct flights

Direct returns

Incheon Intl to Bangkok

Monday

AIR PREMIA,Asiana Airlines,Eastar Jet, +5 more

AIR PREMIA,Asiana Airlines, +6 more

Tuesday

AIR PREMIA,Asiana Airlines,Eastar Jet, +5 more

AIR PREMIA,Asiana Airlines, +6 more

Wednesday

Asiana Airlines,Eastar Jet,Jeju Air, +4 more

Asiana Airlines,Eastar Jet, +5 more

Thursday

AIR PREMIA,Asiana Airlines,Eastar Jet, +5 more

AIR PREMIA,Asiana Airlines, +6 more

Friday

AIR PREMIA,Asiana Airlines,Eastar Jet, +5 more

AIR PREMIA,Asiana Airlines, +6 more

Saturday

Asiana Airlines,Eastar Jet,Jeju Air, +4 more

Asiana Airlines,Eastar Jet, +5 more

Sunday

AIR PREMIA,Asiana Airlines,Eastar Jet, +5 more

AIR PREMIA,Asiana Airlines, +6 more

See more direct flights

More options for your flight from Bangkok to Incheon Intl

Complete your trip to Incheon with a hotel stay or car hire