How long is the flight from Kailua-Kona to St. Louis?

A quick flight from Kailua-Kona to St. Louis can take about 10h 15m. Southwest provides one of the quickest options available for as low as $319. There are 4080 mi between Kailua-Kona and St. Louis. This flight may include one or multiple stops.

What is the cheapest airline to fly from Kailua-Kona to St. Louis round-trip?

United Airlines, at $541, was found to be the cheapest airline from Kailua-Kona to St. Louis.. United Airlines is priced at 14% lower than the current average price of a flight leaving 3 months from now.

What are the cheapest airlines to fly from Kailua-Kona to St. Louis one-way?

The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as $200. However, be on the lookout for offers from Alaska Airlines and Southwest, as they are both options that can get you from Kailua-Kona to St. Louis for a low price.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

What is the cheapest time of day to fly from KOA to STL?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Kailua-Kona to St. Louis as you normally would.

Most accurate provider : When it comes to deals on Kailua-Kona-St. Louis flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Kailua-Kona-St. Louis flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Kailua-Kona-St. Louis flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Kailua-Kona-St. Louis flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Kailua-Kona-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Can I find deals for flights from Kailua-Kona to St. Louis that include hotel bookings?

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

How can I find direct flights from Kailua-Kona to St. Louis?

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

Can I find deals for business class flights from Kailua-Kona to St. Louis?

Yes. Cheapflights offers flight deals from Kailua-Kona to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$188+ Flights from Kailua-Kona to St. Louis

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1. Tell us where you want to go

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3. Compare prices and book

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Cheap flight deals from Kailua-Kona to St. Louis

Cheapest flights from Kailua-Kona to St. Louis
Explore the most affordable flight options available from Kailua-Kona to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 3, 2025.

Thu 12/188:30 pmKOA - STL

2 stops15h 57mUnited Airlines

Mon 12/222:45 pmSTL - KOA

1 stop29h 56mUnited Airlines

Deal found 12/3

$922

Thu 12/1811:45 amKOA - STL

1 stop32h 14mAlaska Airlines

Mon 12/225:26 pmSTL - KOA

1 stop33h 04mAlaska Airlines

Deal found 12/3

$1,259

Best flights from Kailua-Kona to St. Louis
Discover carefully curated flight deals from Kailua-Kona to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 3, 2025.

Mon 1/128:45 pmKOA - STL

2 stops15h 52mDelta

Mon 1/196:40 amSTL - KOA

1 stop13h 11mDelta

Deal found 12/3

$398

Mon 2/29:10 pmKOA - STL

1 stop12h 44mAlaska Airlines

Mon 2/92:50 pmSTL - KOA

2 stops25h 41mAlaska Airlines

Deal found 12/2

$425

Mon 2/210:55 pmKOA - STL

2 stops18h 43mDelta

Sun 2/86:40 amSTL - KOA

1 stop13h 11mDelta

Deal found 12/2

$414

Thu 1/157:55 pmKOA - STL

1 stop14h 53mDelta

Wed 1/212:38 pmSTL - KOA

2 stops31h 52mDelta

Deal found 12/3

$418

Thu 1/297:55 pmKOA - STL

1 stop13h 53mDelta

Mon 2/22:38 pmSTL - KOA

2 stops31h 52mDelta

Deal found 12/1

$418

Fri 1/167:55 pmKOA - STL

1 stop14h 53mDelta

Wed 1/212:38 pmSTL - KOA

2 stops31h 52mDelta

Deal found 12/3

$418

Wed 2/410:55 pmKOA - STL

2 stops18h 43mDelta

Sun 2/86:40 amSTL - KOA

1 stop13h 11mDelta

Deal found 12/2

$425

Tue 2/310:55 pmKOA - STL

2 stops18h 43mDelta

Sun 2/86:40 amSTL - KOA

1 stop13h 11mDelta

Deal found 12/2

$425

Thu 2/510:55 pmKOA - STL

2 stops18h 43mDelta

Sun 2/86:40 amSTL - KOA

1 stop13h 11mDelta

Deal found 12/2

$425

Last-minute flights from Kailua-Kona to St. Louis
Discover last-minute flight deals from Kailua-Kona to St. Louis. Data last updated December 3, 2025 and is based on user searches.

Mon 1/128:45 pmKOA - STL

2 stops15h 52mDelta

Mon 1/196:40 amSTL - KOA

1 stop13h 11mDelta

Deal found 12/3

$398

Mon 1/129:10 pmKOA - STL

1 stop12h 44mAlaska Airlines

Wed 1/212:50 pmSTL - KOA

2 stops25h 41mAlaska Airlines

Deal found 12/3

$425

Tue 1/139:25 pmKOA - STL

1 stop10h 15mSouthwest

Tue 1/206:00 amSTL - KOA

1 stop11h 45mSouthwest

Deal found 12/3

$319

Wed 1/149:10 pmKOA - STL

1 stop12h 44mAlaska Airlines

Tue 1/202:50 pmSTL - KOA

2 stops25h 41mAlaska Airlines

Deal found 12/3

$427

Thu 1/157:55 pmKOA - STL

1 stop14h 53mDelta

Wed 1/212:38 pmSTL - KOA

2 stops31h 52mDelta

Deal found 12/3

$418

Thu 1/157:55 pmKOA - STL

1 stop14h 53mDelta

Mon 1/196:40 amSTL - KOA

1 stop13h 11mDelta

Deal found 12/3

$421

Thu 1/156:38 pmKOA - STL

2 stops15h 16mAlaska Airlines

Wed 1/212:50 pmSTL - KOA

2 stops25h 41mAlaska Airlines

Deal found 12/3

$432

Thu 1/157:55 pmKOA - STL

1 stop14h 53mDelta

Thu 1/226:40 amSTL - KOA

2 stops15h 50mDelta

Deal found 12/3

$438

Thu 1/299:30 pmKOA - STL

2 stops16h 20mDelta

Mon 2/22:38 pmSTL - KOA

2 stops31h 52mDelta

Deal found 12/1

$423

One-way flights from Kailua-Kona to St. Louis
Search for one-way flight options from Kailua-Kona to St. Louis. Find affordable one-way fares based on user searches. Data last updated December 3, 2025.

Tue 1/209:25 pmKOA - STL

1 stop10h 15mSouthwest

Deal found 12/2

$188

Wed 1/216:00 amKOA - STL

3 stops50h 08mMultiple Airlines

Deal found 12/2

$205

Wed 1/218:45 pmKOA - STL

2 stops13h 53mDelta

Deal found 12/2

$207

Wed 1/218:55 pmKOA - STL

1 stop12h 21mUnited Airlines

Deal found 12/2

$223

Tue 3/247:40 pmKOA - STL

1 stop12h 52mDelta

Deal found 12/1

$262

Tue 1/208:36 amKOA - STL

3 stops26h 10mMultiple Airlines

Deal found 12/2

$297

Wed 3/256:10 pmKOA - STL

1 stop11h 52mAmerican Airlines

Deal found 12/1

$312

Tue 3/249:13 pmKOA - STL

2 stops15h 00mAmerican Airlines

Deal found 12/1

$337

Tue 1/69:47 amKOA - STL

3 stops20h 15mMultiple Airlines

Deal found 12/2

$363

Find flight deals from Kailua-Kona to St. Louis

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$319 (Southwest)
One-way from	$188 (Southwest)
Popular in	June
Cheapest in	December
Average price	$424

Provider with most accurate pricing for Kona Intl-Lambert-St Louis flight deals.

Search Deals

Provider most trusted by Cheapflights users for Kona Intl-Lambert-St Louis flights.

Search Deals

From Kona Intl to Lambert-St Louis

Search Deals

One-way flight from Kona Intl to Lambert-St Louis

Search Deals

Highest demand for flights based on searches. 9% potential increase in price ($69 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($19 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Kailua-Kona to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Mon 1/12

8:45 pm-4:37 pm

2 stops15h 52m

Lambert-St Louis

Mon 1/19

6:40 am-3:51 pm

1 stop13h 11m

$398

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Mon 2/2

10:55 pm-9:38 pm

2 stops18h 43m

Lambert-St Louis

Sun 2/8

6:40 am-3:51 pm

1 stop13h 11m

$414

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Thu 1/15

7:55 pm-2:48 pm

1 stop14h 53m

Lambert-St Louis

Wed 1/21

2:38 pm-6:30 pm

2 stops31h 52m

$418

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Thu 1/29

7:55 pm-1:48 pm

1 stop13h 53m

Lambert-St Louis

Mon 2/2

2:38 pm-6:30 pm

2 stops31h 52m

$418

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Fri 1/16

7:55 pm-2:48 pm

1 stop14h 53m

Lambert-St Louis

Wed 1/21

2:38 pm-6:30 pm

2 stops31h 52m

$418

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Mon 2/2

9:10 pm-1:54 pm

1 stop12h 44m

Lambert-St Louis

Mon 2/9

2:50 pm-12:31 pm

2 stops25h 41m

$425

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Wed 2/4

10:55 pm-9:38 pm

2 stops18h 43m

Lambert-St Louis

Sun 2/8

6:40 am-3:51 pm

1 stop13h 11m

$425

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Tue 2/3

10:55 pm-9:38 pm

2 stops18h 43m

Lambert-St Louis

Sun 2/8

6:40 am-3:51 pm

1 stop13h 11m

$425

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Thu 2/5

10:55 pm-9:38 pm

2 stops18h 43m

Lambert-St Louis

Sun 2/8

6:40 am-3:51 pm

1 stop13h 11m

$425

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Tue 1/20

9:25 pm-11:40 am

1 stop10h 15m

$188

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/2

Showing 1-10 of 19 results

Compare providers for flights from Kailua-Kona to St. Louis

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Kailua-Kona to St. Louis in December.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*1 star
Expedia	Price Accuracy2 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Kailua-Kona-St. Louis flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Kailua-Kona-St. Louis flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Kailua-Kona-St. Louis flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Kailua-Kona-St. Louis flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Kailua-Kona-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Kailua-Kona to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Kailua-Kona 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.

Reviews of airlines servicing St. Louis

Get a feel of what it's like to fly with United Airlines from Kailua-Kona to St. Louis by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

9,063 reviews

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

United Airlines

7.4

Good

9,063 reviews

United Airlines

7.4

Good

9,063 reviews

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Related info for your journey

How long is the flight from Kailua-Kona to St. Louis?
A quick flight from Kailua-Kona to St. Louis can take about 10h 15m. Southwest provides one of the quickest options available for as low as $319. There are 4080 mi between Kailua-Kona and St. Louis. This flight may include one or multiple stops.
What is the cheapest airline to fly from Kailua-Kona to St. Louis round-trip?
United Airlines, at $541, was found to be the cheapest airline from Kailua-Kona to St. Louis.. United Airlines is priced at 14% lower than the current average price of a flight leaving 3 months from now.
What are the cheapest airlines to fly from Kailua-Kona to St. Louis one-way?
The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as $200. However, be on the lookout for offers from Alaska Airlines and Southwest, as they are both options that can get you from Kailua-Kona to St. Louis for a low price.
Can I find deals for flights from Kailua-Kona to St. Louis that include hotel bookings?
Yes. In addition to deals on Kailua-Kona to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Kailua-Kona to St. Louis?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Kailua-Kona to St. Louis.
Can I find deals for business class flights from Kailua-Kona to St. Louis?
Yes. Cheapflights offers flight deals from Kailua-Kona to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Other flights to St. Louis

Top airline flying from Kailua-Kona to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$541	Average$641	FlexibilityNo cancel fee	On-time69%

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$188+ Cheap flights from Kailua-Kona to St. Louis (KOA - STL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/20. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Kailua-Kona to St. Louis with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Kailua-Kona to St. Louis

Cheapest flights from Kailua-Kona to St. LouisExplore the most affordable flight options available from Kailua-Kona to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 3, 2025.

Explore the most affordable flight options available from Kailua-Kona to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 3, 2025.

Find flight deals from Kailua-Kona to St. Louis

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Kailua-Kona to St. Louis that are best for you.

Compare providers for flights from Kailua-Kona to St. Louis

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Kailua-Kona to St. Louis in December.

Best time to book a flight from Kailua-Kona to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Kailua-Kona with our price prediction graph.

Reviews of airlines servicing St. Louis

Get a feel of what it's like to fly with United Airlines from Kailua-Kona to St. Louis by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Kailua-Kona to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from Kailua-Kona to St. Louis?

What is the cheapest airline to fly from Kailua-Kona to St. Louis round-trip?

What are the cheapest airlines to fly from Kailua-Kona to St. Louis one-way?

Can I find deals for flights from Kailua-Kona to St. Louis that include hotel bookings?

How can I find direct flights from Kailua-Kona to St. Louis?

Can I find deals for business class flights from Kailua-Kona to St. Louis?

Traveling to a place near St. Louis?

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.

Alternative routes for Kailua-Kona to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Kailua-Kona to St. Louis

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Travel Smart

Cheapest flights from Kailua-Kona to St. Louis
Explore the most affordable flight options available from Kailua-Kona to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 3, 2025.