HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ko Phi Phi

$1,114+ Cheap flights from St. Louis (STL) to Ko Phi Phi, Thailand

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/12. Fares are subject to change and may not be available on all flights or dates of travel.
STL — HKT
ago. 5 — ago. 121
mar. 8/5
mar. 8/12
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from St. Louis to Ko Phi Phi with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from St. Louis to Ko Phi Phi

Keep the following information in mind while searching for St. Louis to Ko Phi Phi flight deals. Data was last updated julio 31, 2025.

Round-trip from

$1,114
(FlightHub)

Popular in

June

Cheapest in

September

Average price

$1,568
From Lambert-St Louis to Ko Phi Phi
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($180 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($54 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

Find flight deals from St. Louis to Ko Phi Phi

Cheapest flights from St. Louis to Ko Phi Phi
Explore the most affordable flight options available from St. Louis to Ko Phi Phi. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 31, 2025.

This FlightHub deal was found by Cheapflights users on 7/31. 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.
vie. 9/127:23 amSTL - HKT
2 stops36h 27mQatar Airways
mié. 9/178:25 pmHKT - STL
2 stops36h 00mQatar Airways
Deal found 7/31$1,114
This Delta deal was found by Cheapflights users on 7/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/136:40 amSTL - HKT
2 stops27h 30mDelta
sáb. 9/2011:25 pmHKT - STL
2 stops35h 59mDelta
Deal found 7/30$1,158
This Korean Air deal was found by Cheapflights users on 7/31. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/176:30 amSTL - HKT
2 stops26h 10mMultiple Airlines
jue. 11/2011:20 pmHKT - STL
2 stops36h 42mMultiple Airlines
Deal found 7/31$1,343
This KAYAK deal was found by Cheapflights users on 7/30. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/176:30 amSTL - HKT
2 stops26h 10mKorean Air
jue. 11/2011:20 pmHKT - STL
2 stops36h 42mKorean Air
Deal found 7/30$1,344
This Gurufare deal was found by Cheapflights users on 7/31. 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.
vie. 9/126:20 amSTL - HKT
2 stops40h 30mCathay Pacific
mié. 9/172:45 pmHKT - STL
3 stops40h 25mCathay Pacific
Deal found 7/31$1,677
This Fareboom deal was found by Cheapflights users on 7/30. 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 Fareboom is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/276:30 amSTL - HKT
2 stops36h 40mAir India
vie. 1/26:10 pmHKT - STL
2 stops31h 17mAir India
Deal found 7/30$2,760
This AranGrant deal was found by Cheapflights users on 7/29. 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 AranGrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/2412:25 pmSTL - HKT
3 stops59h 00mLufthansa
sáb. 11/89:25 amHKT - STL
2 stops41h 30mLufthansa
Deal found 7/29$7,330

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Ko Phi Phi 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 julio 31, 2025.
Use the filters below to find and compare flights from St. Louis to Ko Phi Phi that are best for you.

Fly from

St. Louis

Fly to

Ko Phi Phi

Route

Depart

Return

Price

St. LouisPhuket City

STL - HKT

STLHKT

Lambert-St Louis

vie. 9/12

7:23 am-7:50 am

2 stops36h 27m

Phuket City

mié. 9/17

8:25 pm-8:25 pm

2 stops36h 00m

$1,114

St. LouisPhuket City

STL - HKT

STLHKT

Lambert-St Louis

sáb. 9/13

6:40 am-10:10 pm

2 stops27h 30m

Phuket City

sáb. 9/20

11:25 pm-11:24 pm

2 stops35h 59m

$1,158

St. LouisPhuket City

STL - HKT

STLHKT

Lambert-St Louis

jue. 8/28

2:30 pm-10:50 am

3 stops32h 20m

Phuket City

jue. 9/4

10:00 pm-7:57 pm

3 stops33h 57m

$1,473

St. LouisPhuket City

STL - HKT

STLHKT

Lambert-St Louis

vie. 9/12

6:20 am-10:50 am

2 stops40h 30m

Phuket City

mié. 9/17

2:45 pm-7:10 pm

3 stops40h 25m

$1,677

St. LouisPhuket City

STL - HKT

STLHKT

Lambert-St Louis

vie. 10/24

12:25 pm-11:25 am

3 stops59h 00m

Phuket City

sáb. 11/8

9:25 am-1:55 pm

2 stops41h 30m

$7,330

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Best time to book a flight from St. Louis to Ko Phi Phi

Have a flexible travel schedule? Discover the best time to fly to Ko Phi Phi from St. Louis 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 St. Louis to Ko Phi Phi

What is the cheapest month to book a flight from St. Louis to Ko Phi Phi?

Currently, September is the cheapest month in which you can book a flight from St. Louis to Ko Phi Phi (average of $1,101). Flying from St. Louis to Ko Phi Phi in December is currently the most expensive (average of $1,759). 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 STL to K33?

Find hourly flight availability from St. Louis to Ko Phi Phi. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated julio 31, 2025.

When flying from St. Louis to Ko Phi Phi, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Ko Phi Phi

Get insights into the airlines that provide service to Ko Phi Phi. 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 Ko Phi Phi. Reviews last updated julio 31, 2025.
Read through reviews of airlines operating flights from St. Louis to Ko Phi Phi, such as Korean Air, Delta, and Cathay Pacific. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,121 reviews

Comfort

8.2

Overall

8.4

Boarding

8.5

Food

8.1

Crew

8.7

Entertainment

8.2

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
1,121 reviews
Korean Air
8.4
Very good
1,121 reviews

Comfort

8.2

Overall

8.4

Boarding

8.5

Food

8.1

Crew

8.7

Entertainment

8.2

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.
Delta
8.0
Very good
7,981 reviews
Korean Air
8.4
Very good
1,121 reviews

Comfort

8.2

Overall

8.4

Boarding

8.5

Food

8.1

Crew

8.7

Entertainment

8.2

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
949 reviews
Korean Air
8.4
Very good
1,121 reviews

Comfort

8.2

Overall

8.4

Boarding

8.5

Food

8.1

Crew

8.7

Entertainment

8.2

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.
Qatar Airways
7.4
Good
3,609 reviews
Korean Air
8.4
Very good
1,121 reviews

Comfort

8.2

Overall

8.4

Boarding

8.5

Food

8.1

Crew

8.7

Entertainment

8.2

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.
Lufthansa
6.8
Okay
7,275 reviews
Korean Air
8.4
Very good
1,121 reviews

Comfort

8.2

Overall

8.4

Boarding

8.5

Food

8.1

Crew

8.7

Entertainment

8.2

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 St. Louis to Ko Phi Phi. 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 from for flights from St. Louis to Ko Phi Phi?

    Lambert-St Louis (STL) is the airport you will fly out of if you book a flight from St. Louis to Ko Phi Phi. You should not have trouble finding flights to Ko Phi Phi from Lambert-St Louis; the airport handles an average of 0 outbound flights to Ko Phi Phi per day. You should also have plenty of airline options to choose from since 2 airlines have flights from the St. Louis airport to Ko Phi Phi. It is only a 12.7 mi journey to Lambert-St Louis (STL) from St. Louis’s city center.

  • Can I find deals for flights from St. Louis to Ko Phi Phi that include hotel bookings?

    Yes. In addition to deals on St. Louis to Ko Phi Phi flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Ko Phi Phi?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Ko Phi Phi.

  • Can I find deals for business class flights from St. Louis to Ko Phi Phi?

    Yes. Cheapflights offers flight deals from St. Louis to Ko Phi Phi 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 St. Louis to Ko Phi Phi?

    Currently, September is the cheapest month in which you can book a flight from St. Louis to Ko Phi Phi (average of $1,101). Flying from St. Louis to Ko Phi Phi in December is currently the most expensive (average of $1,759). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 2 airlines flying from St. Louis to Ko Phi Phi

Discover the top 2 airlines that operate flights from St. Louis to Ko Phi Phi. 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 julio 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$1,078Average$1,542FlexibilityNo cancel feeOn-timeN/A
Qatar AirwaysCheapest$1,277Average$1,634FlexibilityNo cancel feeOn-time68%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.