What are the cheapest airlines flying from Hailey to St. Louis round-trip?

Flying on Delta is currently your cheapest option to St. Louis, with prices starting at $291. Another option worth looking into is United Airlines, starting at $376 round trip.

What is the cheapest day to fly from Hailey to St. Louis?

Travelers seeking maximum savings on their Hailey to St. Louis flight should consider departing on Friday mornings when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 SUN to STL?

It’s optimal to fly from Hailey to St. Louis at noon. By choosing this option you can save up to 18% on the cost of your flight, compared to a flight in the morning.

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

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

How can I find direct flights from Hailey to St. Louis?

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

Can I find deals for business class flights from Hailey to St. Louis?

Yes. Cheapflights offers flight deals from Hailey 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.

$206+ Flights from Hailey to St. Louis

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Cheap flight deals from Hailey to St. Louis

Round-trip from	$291 (Delta)
One-way from	$206 (Delta)

From Hailey Sun Valley-Friedman to Lambert-St Louis

Search Deals

One-way flight from Hailey Sun Valley-Friedman to Lambert-St Louis

Search Deals

Find flight deals from Hailey to St. Louis

Cheapest flights from Hailey to St. Louis
Explore the most affordable flight options available from Hailey to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Tue 9/912:37 pmSUN - STL

1 stop7h 41mDelta

Tue 9/167:40 amSTL - SUN

1 stop7h 57mDelta

Deal found 7/29

$291

Tue 9/97:00 amSUN - STL

2 stops10h 59mUnited Airlines

Tue 9/164:40 pmSTL - SUN

1 stop5h 25mUnited Airlines

Deal found 7/29

$376

Best flights from Hailey to St. Louis
Discover carefully curated flight deals from Hailey to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 29, 2025.

Tue 9/912:37 pmSUN - STL

1 stop7h 41mDelta

Tue 9/167:40 amSTL - SUN

1 stop7h 57mDelta

Deal found 7/29

$291

Tue 9/97:00 amSUN - STL

2 stops10h 59mUnited Airlines

Tue 9/164:40 pmSTL - SUN

1 stop5h 25mUnited Airlines

Deal found 7/29

$376

One-way flights from Hailey to St. Louis
Search for one-way flight options from Hailey to St. Louis. Find affordable one-way fares based on user searches. Data last updated July 29, 2025.

Fri 10/312:38 pmSUN - STL

1 stop4h 24mDelta

Deal found 7/29

$206

Fri 10/31:50 pmSUN - STL

2 stops25h 38mUnited Airlines

Deal found 7/29

$325

Fly from

Fly to

Route

Depart

Return

Price

HaileySt. Louis

SUN - STL

SUNSTL

Hailey Sun Valley-Friedman

Tue 9/9

12:37 pm-9:18 pm

1 stop7h 41m

Lambert-St Louis

Tue 9/16

7:40 am-2:37 pm

1 stop7h 57m

$291

HaileySt. Louis

SUN - STL

SUNSTL

Hailey Sun Valley-Friedman

Tue 9/9

7:00 am-6:59 pm

2 stops10h 59m

Lambert-St Louis

Tue 9/16

4:40 pm-9:05 pm

1 stop5h 25m

$376

HaileySt. Louis

SUN - STL

SUNSTL

Hailey Sun Valley-Friedman

Fri 10/3

12:38 pm-6:02 pm

1 stop4h 24m

$206

HaileySt. Louis

SUN - STL

SUNSTL

Hailey Sun Valley-Friedman

Fri 10/3

1:50 pm-4:28 pm

2 stops25h 38m

$325

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Best time to book a flight from Hailey to St. Louis

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

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

Currently, August is the cheapest month in which you can book a flight from Hailey to St. Louis (average of $311). Flying from Hailey to St. Louis in March is currently the most expensive (average of $356). 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.

Reviews of airlines servicing St. Louis

Get a feel of what it's like to fly with Delta and United Airlines from Hailey to St. Louis by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,979 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,979 reviews

Delta

8.0

Very good

7,979 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,896 reviews

Delta

8.0

Very good

7,979 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

What are the cheapest airlines flying from Hailey to St. Louis round-trip?
Flying on Delta is currently your cheapest option to St. Louis, with prices starting at $291. Another option worth looking into is United Airlines, starting at $376 round trip.
Can I find deals for flights from Hailey to St. Louis that include hotel bookings?
Yes. In addition to deals on Hailey to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Hailey to St. Louis?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Hailey to St. Louis.
Can I find deals for business class flights from Hailey to St. Louis?
Yes. Cheapflights offers flight deals from Hailey 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.
What is the cheapest month to book a flight from Hailey to St. Louis?
Currently, August is the cheapest month in which you can book a flight from Hailey to St. Louis (average of $311). Flying from Hailey to St. Louis in March is currently the most expensive (average of $356). 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

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Top airline flying from Hailey to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$510	Average$875	FlexibilityNo cancel fee	On-time69%

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$206+ Cheap flights from Hailey to St. Louis (SUN - 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 10/3. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Hailey 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 Hailey to St. Louis

Round-trip from

One-way from

Find flight deals from Hailey to St. Louis

Cheapest flights from Hailey to St. LouisExplore the most affordable flight options available from Hailey to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Explore the most affordable flight options available from Hailey to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Hailey to St. Louis

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

Cheapflights Insights

Everything you need to know about your flight from Hailey to St. Louis

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

Reviews of airlines servicing St. Louis

Get a feel of what it's like to fly with Delta and United Airlines from Hailey to St. Louis by reading reviews from past customers. You can also see how each airline compares 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 Hailey to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines flying from Hailey to St. Louis round-trip?

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

How can I find direct flights from Hailey to St. Louis?

Can I find deals for business class flights from Hailey to St. Louis?

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

Traveling to a place near St. Louis?

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Alternative routes for Hailey to St. Louis

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

Top airline flying from Hailey to St. Louis

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Book with Flexibility

Travel Smart

Cheapest flights from Hailey to St. Louis
Explore the most affordable flight options available from Hailey to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.