Are direct St Louis to Salt Lake City flights available?
Yes. The current route snapshot includes 2 non-stop options. Availability can change by travel date, so recheck before payment.
STL to SLC
St Louis to Salt Lake City Flights from US$259 + Up to 20% Off
Compare fares, departure times, stops and baggage details for this route, then open the full search when you are ready to check current availability and complete booking.
Live fares from the airlines
No hidden charges
Transparent cancellation policy
24×7 booking support
Cheapest fareUS$259United Airlines
Fastest3h 7mgate to gate
Options today93flights on this route
Live flights for Tue, 18 Aug 2026
Review fares, stops, timings and baggage. Use Search or View all flights for the complete search result.
Showing flight options for the selected travel date.
Currency: USD
United Airlines
UA-2459
09:00
2026-08-18
St Louis (STL)
Lambert-St Louis Intl
Lambert-St Louis Intl14H :43 M
1 Stop
DEN
· 10h 32m Denver (DEN), United States
22:43
2026-08-18
Salt Lake City (SLC)Salt Lake City International
Salt Lake City International
FLYX20 Applied
$251
$259
United Airlines
UA-2459
09:00
2026-08-18
St Louis (STL)Lambert-St Louis Intl
Lambert-St Louis Intl25H :34 M
1 Stop
DEN
· 21h 29m Denver (DEN), United States
09:34
2026-08-19
Salt Lake City (SLC)Salt Lake City International
Salt Lake City International
FLYX20 Applied
$251
$259
United Airlines
UA-1380
13:36
2026-08-18
St Louis (STL)Lambert-St Louis Intl
Lambert-St Louis Intl10H :07 M
1 Stop
DEN
· 6h 03m Denver (DEN), United States
22:43
2026-08-18
Salt Lake City (SLC)Salt Lake City International
Salt Lake City International
FLYX20 Applied
$251
$259
United Airlines
UA-1380
13:36
2026-08-18
St Louis (STL)Lambert-St Louis Intl
Lambert-St Louis Intl20H :58 M
1 Stop
DEN
· 17h 00m Denver (DEN), United States
09:34
2026-08-19
Salt Lake City (SLC)Salt Lake City International
Salt Lake City International
FLYX20 Applied
$251
$259
United Airlines
UA-1380
13:36
2026-08-18
St Louis (STL)Lambert-St Louis Intl
Lambert-St Louis Intl24H :42 M
1 Stop
DEN
· 20h 44m Denver (DEN), United States
13:18
2026-08-19
Salt Lake City (SLC)Salt Lake City International
Salt Lake City International
FLYX20 Applied
$251
$259
United Airlines
UA-1380
13:36
2026-08-18
St Louis (STL)Lambert-St Louis Intl
Lambert-St Louis Intl26H :52 M
1 Stop
DEN
· 22h 55m Denver (DEN), United States
15:28
2026-08-19
Salt Lake City (SLC)Salt Lake City International
Salt Lake City International
FLYX20 Applied
$251
$259
United Airlines
UA-333
16:40
2026-08-18
St Louis (STL)Lambert-St Louis Intl
Lambert-St Louis Intl17H :54 M
1 Stop
DEN
· 13h 50m Denver (DEN), United States
09:34
2026-08-19
Salt Lake City (SLC)Salt Lake City International
Salt Lake City International
FLYX20 Applied
$251
$259
United Airlines
UA-333
16:40
2026-08-18
St Louis (STL)Lambert-St Louis Intl
Lambert-St Louis Intl21H :38 M
1 Stop
DEN
· 17h 34m Denver (DEN), United States
13:18
2026-08-19
Salt Lake City (SLC)Salt Lake City International
Salt Lake City International
FLYX20 Applied
$251
$259
United Airlines
UA-333
16:40
2026-08-18
St Louis (STL)Lambert-St Louis Intl
Lambert-St Louis Intl23H :48 M
1 Stop
DEN
· 19h 45m Denver (DEN), United States
15:28
2026-08-19
Salt Lake City (SLC)Salt Lake City International
Salt Lake City International
FLYX20 Applied
$251
$259
United Airlines
UA-333
16:40
2026-08-18
St Louis (STL)Lambert-St Louis Intl
Lambert-St Louis Intl25H :43 M
1 Stop
DEN
· 21h 43m Denver (DEN), United States
17:23
2026-08-19
Salt Lake City (SLC)Salt Lake City International
Salt Lake City International
FLYX20 Applied
$251
$259
United Airlines
UA-333
16:40
2026-08-18
St Louis (STL)Lambert-St Louis Intl
Lambert-St Louis Intl26H :56 M
1 Stop
DEN
· 22h 44m Denver (DEN), United States
18:36
2026-08-19
Salt Lake City (SLC)Salt Lake City International
Salt Lake City International
FLYX20 Applied
$251
$259
United Airlines
UA-333
16:40
2026-08-18
St Louis (STL)Lambert-St Louis Intl
Lambert-St Louis Intl27H :50 M
1 Stop
DEN
· 23h 35m Denver (DEN), United States
19:30
2026-08-19
Salt Lake City (SLC)Salt Lake City International
Salt Lake City International
FLYX20 Applied
$251
$259
United Airlines
UA-2459
09:00
2026-08-18
St Louis (STL)Lambert-St Louis Intl
Lambert-St Louis Intl13H :02 M
1 Stop
DEN
· 8h 54m Denver (DEN), United States
21:02
2026-08-18
Salt Lake City (SLC)Salt Lake City International
Salt Lake City International
FLYX20 Applied
$273
$281
United Airlines
UA-1380
13:36
2026-08-18
St Louis (STL)Lambert-St Louis Intl
Lambert-St Louis Intl8H :26 M
1 Stop
DEN
· 4h 25m Denver (DEN), United States
21:02
2026-08-18
Salt Lake City (SLC)Salt Lake City International
Salt Lake City International
FLYX20 Applied
$273
$281
Alaska Airlines
AS-473
06:02
2026-08-18
St Louis (STL)Lambert-St Louis Intl
Lambert-St Louis Intl10H :02 M
1 Stop
SEA
· 3h 21m Seattle (SEA), United States
15:04
2026-08-18
Salt Lake City (SLC)Salt Lake City International
Salt Lake City International
FLYX20 Applied
$281
$289
American Airlines
AA-1926
06:00
2026-08-18
St Louis (STL)Lambert-St Louis Intl
Lambert-St Louis Intl11H :06 M
1 Stop
ORD
· 6h 01m Chicago (ORD), United States
16:06
2026-08-18
Salt Lake City (SLC)Salt Lake City International
Salt Lake City International
FLYX20 Applied
$301
$309
American Airlines
AA-1926
06:00
2026-08-18
St Louis (STL)Lambert-St Louis Intl
Lambert-St Louis Intl16H :49 M
1 Stop
ORD
· 11h 43m Chicago (ORD), United States
21:49
2026-08-18
Salt Lake City (SLC)Salt Lake City International
Salt Lake City International
FLYX20 Applied
$301
$309
American Airlines
AA-1926
06:00
2026-08-18
St Louis (STL)Lambert-St Louis Intl
Lambert-St Louis Intl28H :50 M
1 Stop
ORD
· 23h 46m Chicago (ORD), United States
09:50
2026-08-19
Salt Lake City (SLC)Salt Lake City International
Salt Lake City International
FLYX20 Applied
$301
$309
United Airlines
UA-4570
07:25
2026-08-18
St Louis (STL)Lambert-St Louis Intl
Lambert-St Louis Intl16H :34 M
1 Stop
ORD
· 11h 20m Chicago (ORD), United States
22:59
2026-08-18
Salt Lake City (SLC)Salt Lake City International
Salt Lake City International
FLYX20 Applied
$301
$309
United Airlines
UA-4570
07:25
2026-08-18
St Louis (STL)Lambert-St Louis Intl
Lambert-St Louis Intl29H :09 M
1 Stop
ORD
· 23h 49m Chicago (ORD), United States
11:34
2026-08-19
Salt Lake City (SLC)Salt Lake City International
Salt Lake City International
FLYX20 Applied
$301
$309
United Airlines
UA-567
08:00
2026-08-18
St Louis (STL)Lambert-St Louis Intl
Lambert-St Louis Intl15H :59 M
1 Stop
ORD
· 10h 47m Chicago (ORD), United States
22:59
2026-08-18
Salt Lake City (SLC)Salt Lake City International
Salt Lake City International
FLYX20 Applied
$301
$309
United Airlines
UA-567
08:00
2026-08-18
St Louis (STL)Lambert-St Louis Intl
Lambert-St Louis Intl28H :34 M
1 Stop
ORD
· 23h 16m Chicago (ORD), United States
11:34
2026-08-19
Salt Lake City (SLC)Salt Lake City International
Salt Lake City International
FLYX20 Applied
$301
$309
Recommended hotels in Salt Lake City
Stay options near the arrival city for the same travel date.
Suburban Studios Salt Lake City Airport
- 5575 W. Amelia Earhart Drive Building B ,
Free WiFiACBreakfast
Room availability is checked live
Park Inn by Radisson Salt Lake City Midvale
- 280 W 7200 S, Midvale, UT 84047 ,
Free WiFiACBreakfast
Room availability is checked live
Radisson Hotel Salt Lake City Airport
- 2177 W North Temple St, Salt Lake City, UT 84116 ,
Free WiFiACBreakfast
Room availability is checked live
Crystal Inn Hotel & Suites Midvalley
- 818 E Winchester St, Murray, UT 84107 ,
Free WiFiACBreakfast
Room availability is checked live
United Airlines
UA-4601
08:50
2026-08-18
St Louis (STL)Lambert-St Louis Intl
Lambert-St Louis Intl15H :09 M
1 Stop
ORD
· 9h 55m Chicago (ORD), United States
22:59
2026-08-18
Salt Lake City (SLC)Salt Lake City International
Salt Lake City International
FLYX20 Applied
$301
$309
United Airlines
UA-4601
08:50
2026-08-18
St Louis (STL)Lambert-St Louis Intl
Lambert-St Louis Intl27H :44 M
1 Stop
ORD
· 22h 24m Chicago (ORD), United States
11:34
2026-08-19
Salt Lake City (SLC)Salt Lake City International
Salt Lake City International
FLYX20 Applied
$301
$309
United Airlines
UA-2654
12:59
2026-08-18
St Louis (STL)Lambert-St Louis Intl
Lambert-St Louis Intl11H :00 M
1 Stop
ORD
· 5h 51m Chicago (ORD), United States
22:59
2026-08-18
Salt Lake City (SLC)Salt Lake City International
Salt Lake City International
FLYX20 Applied
$301
$309
United Airlines
UA-2654
12:59
2026-08-18
St Louis (STL)Lambert-St Louis Intl
Lambert-St Louis Intl23H :35 M
1 Stop
ORD
· 18h 20m Chicago (ORD), United States
11:34
2026-08-19
Salt Lake City (SLC)Salt Lake City International
Salt Lake City International
FLYX20 Applied
$301
$309
No flights match the selected filters. Clear filters or open full search.
Fare highlights
Selected flight highlights for 18 Aug 2026.
Lowest fare
$259
United Airlines
09:00
Earliest departure
$319
American Airlines
05:42
Shortest duration
$376
Delta Air Lines
14:32
Night
00:00-05:59
$319
American Airlines at 05:42
Morning
06:00-11:59
$259
United Airlines at 09:00
Afternoon
12:00-17:59
$259
United Airlines at 13:36
Evening
18:00-23:59
$309
United Airlines at 18:54
St Louis to Salt Lake City flight booking guide
Quick answers to the most common questions about flying St Louis to Salt Lake City.
Best time or month to book
There is no permanently cheapest month because airline inventory changes continuously. As a practical starting point, compare nearby dates and begin checking international trips 6–12 weeks before departure; peak holidays may need earlier booking.
Cheapest days for this route
Among the dates currently shown, Tuesday has the lowest displayed fare at $259. This is a live snapshot, not a guaranteed weekly rule.
Baggage rules
Allowance is fare-specific, not just airline-specific. Current cards show examples such as 0 Pieces check-in baggage. Open the fare choices and verify cabin/check-in baggage before continuing.
Cancellation and refund explanation
Refundable and non-refundable labels are shown on each card. Exact airline cancellation charges, no-show rules and refund timelines are verified for the selected fare before booking; promotional discounts and applicable charges are adjusted from any refund.
Secure booking support
FlyX rechecks the live fare before payment, shows the payable amount and provides 24×7 booking support. Payment, refund, cancellation and help links are available in the footer.
Airlines flying from St Louis to Salt Lake City
Compare fares, stops, baggage and refundability across the airlines flying this route.
United Airlines St Louis to Salt Lake City flights
United Airlines cheap flights St Louis to Salt Lake City
Fares start from $259 on this route.
St Louis to Salt Lake City United Airlines flight schedule
47 departures — compare timings in the list above.
American Airlines St Louis to Salt Lake City flights
American Airlines cheap flights St Louis to Salt Lake City
Fares start from $309 on this route.
St Louis to Salt Lake City American Airlines flight schedule
22 departures — compare timings in the list above.
Delta Air Lines St Louis to Salt Lake City flights
Delta Air Lines cheap flights St Louis to Salt Lake City
Fares start from $376 on this route.
St Louis to Salt Lake City direct Delta Air Lines flights
2 non-stop flights currently available.
St Louis to Salt Lake City Delta Air Lines flight schedule
22 departures — compare timings in the list above.
St Louis to Salt Lake City flight details
| Cheapest fare | US$259 · Tue, 18 Aug |
|---|---|
| Fastest flight duration | 3h 7m · Delta Air Lines |
| First departure of the day | 05:42 · American Airlines |
| Last departure of the day | 20:07 · American Airlines |
| Flights currently available | 93 |
| Direct / non-stop options | 2 |
| Popular airlines on this route | United Airlines, American Airlines, Delta Air Lines, Alaska Airlines |
| Airport codes | St Louis–STL, Salt Lake City–SLC |
Fares and timings are indicative — the exact price is confirmed with the airline when you search.
St Louis to Salt Lake City flight schedule, timing and fares
St Louis to Salt Lake City flight schedule and timing
Around 93 flights operate on this route, including 2 non-stop options. Departures run through the day — the first flight leaves around 05:42 and the last around 20:07. The fastest flight takes about 3h 7m.
Morning vs evening St Louis–Salt Lake City fares
Lowest fare by departure window: Morning from $259, Afternoon from $259, Evening from $309, Night from $319. Early-morning and late-night flights are often cheaper than peak daytime slots.
What is today’s lowest airfare from St Louis to Salt Lake City?
The lowest fare we are currently showing is US$259, on a Tuesday departure. Airfares change through the day, so search your dates for the exact price.
Should I book one-way or round-trip for St Louis to Salt Lake City?
Domestic fares are usually priced per leg, so two one-ways often cost about the same as a round-trip and keep your return date flexible. Round-trip is worth choosing when you want a single PNR for both legs, and eligible coupons like FLYX20 apply either way.
Which airlines should I consider for St Louis to Salt Lake City?
United Airlines (47 flights, from $259), American Airlines (22 flights, from $309), Delta Air Lines (22 flights, from $376), Alaska Airlines (2 flights, from $289). Compare fare type, baggage and refundability — the cheapest airline is not always the best value for your dates.
Web check-in for your St Louis to Salt Lake City flight
Most airlines open web check-in 24–48 hours before departure on their own website or app using your PNR. Checking in early lets you pick better seats free of charge on many fares; FlyX also links every booking’s airline check-in page from Web Check-in.
How to book a St Louis to Salt Lake City flight on FlyX
- 1Enter your travel details
Choose one-way or round-trip, pick your dates and travellers in the search form above.
- 2Compare live results
Sort or filter the St Louis–Salt Lake City results by price, departure time, stops and airline.
- 3Open the fare choices
Check baggage allowance and refundability for each fare type before continuing.
- 4Review the final price
FlyX rechecks the live fare with the airline; any eligible coupon is applied automatically.
- 5Pay securely
UPI, cards, net banking and wallets supported; your e-ticket is emailed within minutes.
Why book your St Louis to Salt Lake City flight with FlyX?
If you are looking for St Louis to Salt Lake City flight tickets at the best possible fare, FlyX keeps the process simple and transparent. Enter your dates and travellers, compare live fares across every major airline on this route, and filter by price, departure time, stops or airline to find the flight that actually fits your plan. Every fare you see is rechecked live with the airline before payment, so the price you approve is the price you pay — no hidden charges added at checkout.
And that is not all — eligible discounts like FLYX20 are applied automatically on the review page, payments run over 256-bit SSL with UPI, cards, net banking and wallets, and our 24x7 support team backs every booking as an IATA-accredited travel company. Refund and cancellation rules are shown clearly for each fare before you pay, and your e-ticket lands in your inbox within minutes. So why wait? Book your St Louis to Salt Lake City flight on FlyX and take off with genuine savings today.
St Louis to Salt Lake City flight offers & coupon codes
| Coupon code | Offer | Max saving |
|---|---|---|
| FLYX20 | Up to 20% Off on Flights | ₹1,500 |
Your discount is applied automatically on the review page before you pay. View full terms.
Frequently asked questions - St Louis to Salt Lake City flights
Is it worth booking St Louis to Salt Lake City flights in advance?
Yes, booking flights in advance helps you secure cheap flight tickets. Comparing air ticket prices 3–4 weeks early gives you better visibility of airline timings, baggage policies, and fare rules before high-demand periods push prices up.
How far is St Louis from Salt Lake City by air?
The approximate direct air distance between St Louis (STL) and Salt Lake City (SLC) is 1,855.89 km. The actual flight duration and route path vary depending on airline schedules and wind conditions.
Are there non-stop flights from STL to SLC?
Non-stop flight availability depends on the airline schedule and departure date. You can filter the live search results by stops to view direct flights, one-stop connections, and transit flights instantly.
Why does the price change after clicking Book Now?
Airline seat inventory and airfares change dynamically in real-time. Selecting 'Book Now' runs a live fare verification check to ensure you get the most accurate price before final booking confirmation.
Can I compare nearby dates?
Yes, you can easily compare flights for nearby dates. Select any date on the date calendar strip to refresh the fares, compare air ticket pricing, and choose the most budget-friendly travel day.
St Louis to Salt Lake City - what to expect when booking
The STL to SLC cards above show selected flight options. Airline prices and seat availability can move quickly, so the final fare is rechecked in the booking flow.
Approx route distance: 1,855.89 km.
Before you book
Compare nearby dates
The date strip opens the complete search result for the route and selected date.
Use filters
Shortlist by price, stops, departure time and refundable fare preference.
Check fare choices
Continue to Booking opens the verified fare choices, including baggage and refundability, before review.
Book Cheapest Flight from St Louis to Salt Lake City on FlyX
Securing the best airfare from St Louis to Salt Lake City is all about planning. FlyX's real-time fare tracking system allows you to check flight options and lock in the lowest ticket prices before they rise:
- Book at least 3-4 weeks in advance to secure the most competitive St Louis to Salt Lake City airfares.
- Consider traveling mid-week (Tuesdays or Wednesdays) to bypass weekend pricing surges.
- Early morning or late-night departure flights consistently offer lower fares than afternoon slots.
- Use our live calendar view above to easily spot fare changes on nearby dates.
Find the Lowest airfare from St Louis to Salt Lake City
| Cheapest Fare | Fare | Date | Airline | Departure |
|---|---|---|---|---|
| Lowest Airfare Today | $259 | 18/08/2026 | United Airlines | 09:00 |
| Cheapest Airfare Within 30 Days | $254 | 29/08/2026 | United Airlines | 09:00 |
| Cheapest Airfare Within 90 Days | $246 | 28/10/2026 | United Airlines | 09:00 |
Book St Louis to Salt Lake City Flight Tickets on FlyX
Planning to fly from St Louis to Salt Lake City? FlyX lets you compare flight rates, airline timings, layovers, and baggage allowances all in one simple list. From quick non-stop routes to flexible connecting options, finding and booking cheap air tickets has never been easier.
St Louis to Salt Lake City Flight Distance, Duration and Time
The aerial distance between St Louis and Salt Lake City is approximately 1,856 KM. The flight duration ranges from 3H :07 M up to 29H :09 M depending on whether you book a non-stop flight or a connecting schedule with layovers.
St Louis to Salt Lake City Flight Schedule and Timing
Around 93 flights operate on this route, providing plenty of choices for your travel window. The earliest morning flight departs from St Louis at 05:42, while the last night flight leaves at 20:07. Flights depart from Lambert-St Louis Intl and land at Salt Lake City International.
Flight Route Details & Analysis
| Flight Details | Information |
|---|---|
| Route | St Louis to Salt Lake City |
| Aerial Distance | 1,856 KM |
| Flight Duration | 3H :07 M - 29H :09 M |
| Airport Codes | St Louis - STL, Salt Lake City - SLC |
| Total Flights Available | 93 flights (2 direct) |
| First Flight Departure | Departs at 05:42 |
| Last Flight Departure | Departs at 20:07 |
| Early Morning Flights (12 AM - 8 AM) | 19 direct/indirect flights |
| Morning Flights (8 AM - 12 PM) | 25 direct/indirect flights |
| Afternoon Flights (12 PM - 4 PM) | 24 direct/indirect flights |
| Evening Flights (4 PM - 8 PM) | 21 direct/indirect flights |
| Night Flights (8 PM - 12 AM) | 4 direct/indirect flights |
Airport Information & Terminals
STL: St. Louis airport. St. Louis airport transfer should be matched to the exact hotel, suburb or meeting area. Rail can work well for light luggage, but late arrivals, winter weather and family baggage often make a direct cab or booked transfer easier.
SLC: Salt Lake City airport. Salt Lake City airport transfer should be matched to the exact hotel, suburb or meeting area. Rail can work well for light luggage, but late arrivals, winter weather and family baggage often make a direct cab or booked transfer easier.
SLC: Salt Lake City airport. Salt Lake City airport transfer should be matched to the exact hotel, suburb or meeting area. Rail can work well for light luggage, but late arrivals, winter weather and family baggage often make a direct cab or booked transfer easier.
