What airlines fly to St. Louis?

United Airlines, Delta and Southwest are the top three most popular airlines that fly to St. Louis from Hailey according to our data. United Airlines is the first choice among our users, with 31% of people opting to fly with this airline when traveling to St. Louis. Keep in mind that there are 5 different airlines that fly to St. Louis on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Hailey Sun Valley-Friedman Airport to Lambert-St Louis Airport?

Prices for flights from Hailey Sun Valley-Friedman Airport to Lambert-St Louis Airport were last updated today.

How many operators does momondo search for flights from Hailey Sun Valley-Friedman Airport to Lambert-St Louis Airport?

There is 1 operator available for flights from Hailey Sun Valley-Friedman Airport to Lambert-St Louis Airport as of December 2025.

How old do you have to be to fly from Hailey Sun Valley-Friedman Airport to Lambert-St Louis Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Hailey Sun Valley-Friedman Airport to Lambert-St Louis Airport.

What documentation or ID do you need to fly to Lambert-St Louis Airport?

The travel and health documents you'll need for your trip to Lambert-St Louis Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Lambert-St Louis Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$349 Cheap Flights from Hailey to St. Louis in 2025/26

1 adult

0 bags

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Find the cheapest flights from Hailey to St. Louis

Round-trip

One-way

Cheap round-trip flights

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2:32 pm - 8:26 pm

SUN

STL

4h 54m1 stop

6:25 am - 11:53 am

STL

SUN

6h 28m1 stop

$349United Airlines

Sat, Feb 14 - Tue, Feb 17

12:34 pm - 9:05 pm

SUN

STL

7h 31m1 stop

9:55 am - 9:19 pm

STL

SUN

12h 24m2 stops

$354United Airlines

Sat, Feb 14 - Tue, Feb 17

7:00 am - 12:05 am

SUN

STL

16h 05m2 stops

11:25 am - 9:19 pm

STL

SUN

10h 54m2 stops

$359United Airlines

Sat, Feb 14 - Tue, Feb 17

7:00 am - 12:05 am

SUN

STL

16h 05m2 stops

11:25 am - 9:19 pm

STL

SUN

10h 54m2 stops

$389United Airlines

Sat, Feb 14 - Tue, Feb 17

United Airlines flights from Hailey to St. Louis

Our best United Airlines deals on Hailey to St. Louis flight tickets

United Airlines

Feb 14

SUN2:32 pmHailey Sun Valley-Friedman

4h 54m

1 stop

STL8:26 pmLambert-St Louis

Feb 17

STL6:25 amLambert-St Louis

6h 28m

1 stop

SUN11:53 amHailey Sun Valley-Friedman

$349

Find similar

United Airlines

Feb 14

SUN12:34 pmHailey Sun Valley-Friedman

7h 31m

1 stop

STL9:05 pmLambert-St Louis

Feb 17

STL9:55 amLambert-St Louis

12h 24m

2 stops

SUN9:19 pmHailey Sun Valley-Friedman

$354

Find similar

United Airlines

Feb 14

SUN7:00 amHailey Sun Valley-Friedman

16h 05m

2 stops

STL12:05 amLambert-St Louis

Feb 17

STL11:25 amLambert-St Louis

10h 54m

2 stops

SUN9:19 pmHailey Sun Valley-Friedman

$359

Find similar

Fly from

Fly to

Route

Depart

Return

Price

HaileySt. Louis

SUN - STL

SUNSTL

Hailey Sun Valley-Friedman

Sat 2/14

2:32 pm-8:26 pm

1 stop4h 54m

Lambert-St Louis

Tue 2/17

6:25 am-11:53 am

1 stop6h 28m

$349

HaileySt. Louis

SUN - STL

SUNSTL

Hailey Sun Valley-Friedman

Sat 2/14

12:34 pm-9:05 pm

1 stop7h 31m

Lambert-St Louis

Tue 2/17

9:55 am-9:19 pm

2 stops12h 24m

$354

HaileySt. Louis

SUN - STL

SUNSTL

Hailey Sun Valley-Friedman

Sat 2/14

7:00 am-12:05 am

2 stops16h 05m

Lambert-St Louis

Tue 2/17

11:25 am-9:19 pm

2 stops10h 54m

$359

HaileySt. Louis

SUN - STL

SUNSTL

Hailey Sun Valley-Friedman

Sat 2/14

7:00 am-12:05 am

2 stops16h 05m

Lambert-St Louis

Tue 2/17

11:25 am-9:19 pm

2 stops10h 54m

$389

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Hailey to St. Louis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Hailey at noon is the least expensive time of day to depart. momondo users have found prices as low as $722 when looking at flights departing at noon. In the morning is when there is more demand to fly to St. Louis, so prices are often more expensive at around $875 per ticket.

When to book flights from Hailey to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from Hailey to St. Louis according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Hailey to St. Louis (SUN to STL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Hailey to St. Louis

Fastest flight time	7h 31m
Direct flights	None

The fastest flight from Hailey to St. Louis takes 7h 31m

There are no direct flights from Hailey to St. Louis. There are no popular flight routes from Hailey to St. Louis.

Search flight deals

How far is Hailey Sun Valley-Friedman to Lambert-St Louis by plane?
A flight from Hailey Sun Valley-Friedman to Lambert-St Louis will travel around 1294.9 mi. By plane, this route typically takes 7h 31m.
When did momondo last update prices for flights from Hailey Sun Valley-Friedman Airport to Lambert-St Louis Airport?
Prices for flights from Hailey Sun Valley-Friedman Airport to Lambert-St Louis Airport were last updated today.
How many operators does momondo search for flights from Hailey Sun Valley-Friedman Airport to Lambert-St Louis Airport?
There is 1 operator available for flights from Hailey Sun Valley-Friedman Airport to Lambert-St Louis Airport as of December 2025.
How old do you have to be to fly from Hailey Sun Valley-Friedman Airport to Lambert-St Louis Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Hailey Sun Valley-Friedman Airport to Lambert-St Louis Airport.
What documentation or ID do you need to fly to Lambert-St Louis Airport?
The travel and health documents you'll need for your trip to Lambert-St Louis Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Lambert-St Louis Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Hailey to St. Louis?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Hailey to St. Louis is United Airlines (100% of total bookings).

Best airlines flying from Hailey to St. Louis

Compare and see reviews for airlines that fly from Hailey to St. Louis with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $510	Free Cancellation	Rating 7.4 9,105 reviews		Search United Airlines flights

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Fenton

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Wentzville

Collinsville

Alton

Farmington

Clayton

Festus

Glencoe

Eureka

Edwardsville

Litchfield

Shrewsbury

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Can I find flights from Hailey to St. Louis with flexible booking policies on momondo?

All flight searches from Hailey to St. Louis on momondo can be filtered to show those which offer flexible booking policies.

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Once all potential Hailey to St. Louis flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Hailey to St. Louis right now. Can momondo alert me if prices change?

If you are simply researching potential flights to St. Louis, momondo offers a useful price alert feature which will track prices for flights to St. Louis from Hailey and alert you when they change.