Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Hailey to St. Louis from $579

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Hailey to St. Louis departing on 2/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Hailey to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
3:25 pm - 12:25 am
SUN
-
STL
8h 00m
1 stop
Delta Logo
7:00 am - 12:01 pm
STL
-
SUN
6h 01m
1 stop
$579Delta
Tue, Feb 17 - Sat, Feb 21
Delta Logo
3:25 pm - 12:25 am
SUN
-
STL
8h 00m
1 stop
Delta Logo
11:55 am - 9:53 pm
STL
-
SUN
10h 58m
2 stops
$584Delta
Tue, Feb 17 - Sat, Feb 21
American Airlines Logo
7:40 am - 11:59 pm
SUN
-
STL
15h 19m
2 stops
American Airlines Logo
6:38 am - 10:02 pm
STL
-
SUN
16h 24m
2 stops
$1,046American Airlines
Tue, Feb 17 - Sat, Feb 21

Delta flights from Hailey to St. Louis

Our best Delta deals on Hailey to St. Louis flight tickets
Delta
Feb 17
SUN3:25 pmHailey Sun Valley-Friedman
8h 00m
1 stop
STL12:25 amLambert-St Louis
Feb 21
STL7:00 amLambert-St Louis
6h 01m
1 stop
SUN12:01 pmHailey Sun Valley-Friedman
$579
Delta
Feb 17
SUN3:25 pmHailey Sun Valley-Friedman
8h 00m
1 stop
STL12:25 amLambert-St Louis
Feb 21
STL11:55 amLambert-St Louis
10h 58m
2 stops
SUN9:53 pmHailey Sun Valley-Friedman
$584

momondo Fare Finder

 
Customize your flight search to find flights from Hailey to St. Louis 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, momondo users made 832,500 searches. Data last updated February 5, 2026.
Use the filters below to find and compare flights from Hailey to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HaileySt. Louis

SUN - STL

SUNSTL

Hailey Sun Valley-Friedman

Tue 2/17

3:25 pm-12:25 am

1 stop8h 00m

Lambert-St Louis

Sat 2/21

7:00 am-12:01 pm

1 stop6h 01m

$579

HaileySt. Louis

SUN - STL

SUNSTL

Hailey Sun Valley-Friedman

Tue 2/17

3:25 pm-12:25 am

1 stop8h 00m

Lambert-St Louis

Sat 2/21

11:55 am-9:53 pm

2 stops10h 58m

$584

HaileySt. Louis

SUN - STL

SUNSTL

Hailey Sun Valley-Friedman

Tue 2/17

7:40 am-11:59 pm

2 stops15h 19m

Lambert-St Louis

Sat 2/21

6:38 am-10:02 pm

2 stops16h 24m

$1,046

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to St. Louis from

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

What airlines fly to St. Louis?

United Airlines, Southwest and Delta 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 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 30m

Direct flights

None
The fastest flight from Hailey to St. Louis takes 7h 30m
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 30m.

  • 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?

  • 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?

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 AirlinesPriceFrom $510Free CancellationRating
7.4
9,240 reviews
Search United Airlines flights

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
Maryland Heights
Florissant
O'Fallon
Collinsville
St. Peters
Fenton
Wentzville
Alton
Farmington
Clayton
Edwardsville
Eureka
Festus
Litchfield
Glencoe
Shrewsbury

Why use momondo?

Why should I use momondo to find a flight deal from Hailey to St. Louis?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Hailey to St. Louis. momondo saves you time and could save you money on your trip.

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.

How can momondo help me find flights from Hailey to St. Louis?

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.

An easier way to manage your St. Louis trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 3/7
Sat 3/14
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States