$531+ Cheap flights from St. Louis to Sault Ste. Marie (STL - CIU)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/14. Fares are subject to change and may not be available on all flights or dates of travel.
STL — CIU
Jun 23 — Jun 301
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from St. Louis to Sault Ste. Marie
Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Sault Ste. Marie (CIU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 18, 2025.
Round-trip from | $531 (United Airlines) |
|---|
Find flight deals from St. Louis to Sault Ste. Marie
Cheapest flights from St. Louis to Sault Ste. MarieExplore the most affordable flight options available from St. Louis to Sault Ste. Marie. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 18, 2025.
Explore the most affordable flight options available from St. Louis to Sault Ste. Marie. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 18, 2025.
This United Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/1410:00 amSTL - CIU
1 stop4h 09mUnited Airlines
Fri 7/183:50 pmCIU - STL
1 stop19h 50mUnited Airlines
Deal found 6/17![United Airlines logo]()
$531
This Delta deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/298:49 amSTL - CIU
2 stops9h 25mDelta
Sun 7/67:00 amCIU - STL
2 stops8h 36mDelta
Deal found 6/17![Delta logo]()
$1,855
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to Sault Ste. Marie 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, Cheapflights users made 2,558,603 searches. Data last updated June 18, 2025.
Use the filters below to find and compare flights from St. Louis to Sault Ste. Marie that are best for you.
Fly from
St. Louis
Fly to
Sault Ste. Marie
Route
Depart
Return
Price
St. LouisSault Ste. Marie
STL - CIU
STLCIU
Lambert-St Louis
Mon 7/14
10:00 am-3:09 pm
1 stop4h 09m
Sault Ste. Marie Chippewa County
Fri 7/18
3:50 pm-10:40 am
1 stop19h 50m
$531
St. LouisSault Ste. Marie
STL - CIU
STLCIU
Lambert-St Louis
Sun 6/29
8:49 am-7:14 pm
2 stops9h 25m
Sault Ste. Marie Chippewa County
Sun 7/6
7:00 am-2:36 pm
2 stops8h 36m
$1,855
Best time to book a flight from St. Louis to Sault Ste. Marie
Have a flexible travel schedule? Discover the best time to fly to Sault Ste. Marie from St. Louis 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 Sault Ste. Marie
Get insights into the airlines that provide service to Sault Ste. Marie. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sault Ste. Marie. Reviews last updated June 18, 2025.
Overall
8.0
Entertainment
7.9
Boarding
8.2
Food
7.3
Comfort
7.9
Crew
8.5
Reviews
1 / 20
10.0
ExcellentKim,May 2025
PIH - SLC
Overall
8.0
Entertainment
7.9
Boarding
8.2
Food
7.3
Comfort
7.9
Crew
8.5
Reviews
1 / 20
10.0
ExcellentKim,May 2025
PIH - SLC
Overall
8.0
Entertainment
7.9
Boarding
8.2
Food
7.3
Comfort
7.9
Crew
8.5
Reviews
1 / 20
10.0
ExcellentKim,May 2025
PIH - SLC
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Sault Ste. Marie. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for St. Louis to Sault Ste. Marie
See prices for flight routes from nearby airports that may be better suited for you.
Top airline flying from St. Louis to Sault Ste. Marie
Discover the top airline that operate flights from St. Louis to Sault Ste. Marie. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 18, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$513 | Average$1,081 | FlexibilityNo cancel fee | On-timeN/A |