STL - CIU

$229 Find Cheap Flights from St. Louis to Sault Ste. Marie

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Sault Ste. Marie departing on 10/17. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Sault Ste. Marie

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Sault Ste. Marie, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Sault Ste. Marie, as well as popular online travel agencies
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Cheap Flights from St. Louis to Sault Ste. Marie (STL-CIU)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Sault Ste. Marie that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Sault Ste. Marie

Fri, Oct 10 - Mon, Oct 13
Delta Logo
2:15 pm - 7:14 pmSTL-CIU
3h 59m1 stop
Delta Logo
6:55 am - 5:47 pmCIU-STL
11h 52m2 stops
$544Delta
Find Deal
Fri, Oct 10 - Mon, Oct 13
Delta Logo
2:15 pm - 7:14 pmSTL-CIU
3h 59m1 stop
Delta Logo
6:55 am - 11:34 amCIU-STL
5h 39m1 stop
$814Delta
Find Deal
Fri, Oct 10 - Mon, Oct 13
Delta Logo
8:53 am - 7:14 pmSTL-CIU
9h 21m2 stops
Delta Logo
6:55 am - 5:47 pmCIU-STL
11h 52m2 stops
$935Delta
Find Deal
Booking Insights

KAYAK's insights & trends for St. Louis to Sault Ste. Marie flights

Get data-powered insights and trends into flights from St. Louis to Sault Ste. Marie to help you find the cheapest flights, the best time to fly and much more.

What is the most popular layover airport when flying from St. Louis to Sault Ste. Marie?

Percentage of 1-stop round-trip flights from St. Louis to Sault Ste. Marie chosen by KAYAK users via each layover airport in the last 12 months (only includes trips with the same layover airport on both legs).

Minneapolis (MSP) is the top choice – 56% of KAYAK users who clicked on 1-stop flights from St. Louis to Sault Ste. Marie picked an itinerary connecting there.

What is the cheapest layover airport when flying from St. Louis to Sault Ste. Marie?

Average round-trip price for 1-stop flights from St. Louis to Sault Ste. Marie clicked by KAYAK users in the last 12 months (only includes trips with the same layover airport on both legs).

Flights via Chicago (ORD) offer the most affordable fares, with an average round-trip price of $558.

Which layover airport offers the shortest total travel time from St. Louis to Sault Ste. Marie?

Shortest average total travel time for 1-stop one-way flights from St. Louis to Sault Ste. Marie via different layover airports, based on KAYAK user data from the last 12 months.

Consider flying via Minneapolis (MSP) for the shortest journey. The average one-way travel time for flights connecting there is 4h 14m.

Which layover airport has the quickest connection when flying from St. Louis to Sault Ste. Marie?

Average layover duration at different layover airports for 1-stop one-way flights from St. Louis to Sault Ste. Marie, based on KAYAK user data from the last 12 months.

If you prefer a quick connection, Minneapolis (MSP) often has the shortest layovers from St. Louis to Sault Ste. Marie, with an average of 1h 08m.

Find deals

Good to know

Cheapest flight$229
Flight from St. Louis to Sault Ste. Marie

When to book flights from St. Louis to Sault Ste. Marie

Are your dates flexible? Find out the best times to travel from St. Louis to Sault Ste. Marie based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from St. Louis to Sault Ste. Marie

  • What is the cheapest flight from St. Louis to Sault Ste. Marie?

    In the last 3 days, the lowest price for a flight from St. Louis to Sault Ste. Marie was $229 for a one-way ticket and $544 for a round-trip.

  • Do I need a passport to fly between St. Louis and Sault Ste. Marie?

    A passport is not required to fly from St. Louis to Sault Ste. Marie.

  • Which airports will I be using when flying from St. Louis to Sault Ste. Marie?

    When flying out of St. Louis you will be using Lambert-St Louis. You will be landing at Sault Ste. Marie, also known as Sault Ste. Marie Chippewa County.

  • Which aircraft models fly most regularly from St. Louis to Sault Ste. Marie?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from St. Louis to Sault Ste. Marie?

    SkyTeam is the only airline alliance operating flights between St. Louis and Sault Ste. Marie.

  • How does KAYAK find such low prices on flights from St. Louis to Sault Ste. Marie?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Sault Ste. Marie.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Sault Ste. Marie?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sault Ste. Marie from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Sault Ste. Marie?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Sault Ste. Marie with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and CIU can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Sault Ste. Marie?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Sault Ste. Marie from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from St. Louis to Sault Ste. Marie

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Sault Ste. Marie. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Sault Ste. Marie? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 7981 reviews
7.9Comfort
7.9Entertainment
8.2Boarding
8.5Crew
7.3Food
Airline reviews

Great flight with Delta! Boarding was quick and easy, the amenities were solid, and the plane was in great shape. The flight attendants had a fun, lively energy while staying professional. All in all, a smooth trip — even managed to catch up on some rest. Thanks, Delta!

10.0 ExcellentHartaj, Aug 2025STL - LGA
Read more Delta reviews

Great flight with Delta! Boarding was quick and easy, the amenities were solid, and the plane was in great shape. The flight attendants had a fun, lively energy while staying professional. All in all, a smooth trip — even managed to catch up on some rest. Thanks, Delta!

My experience on any Delta flight is always overshadowed by the time Delta removed me from a flight for no apparent reason.

There was no problems, just a little uncomfortable with seats that do not lay back a little

My flight was canceled after being rescheduled for four days canceling my trip. Kayak and everyone affiliated with it I.e the airlines, and just fly have been excruciating to deal with. My trip to visit family had to be canceled as there was no way to make it. I am furious at all of you.

They delayed our flight because of bad weather in NY which was completely understandable. Then they cancelled our flight and a later flight that evening. The earliest we could fly was the next morning. We ended up buying last minute tickets on another airline and made it home slightly delayed but safely that evening. Delta kept saying it was weather related but if that was the case how did we make it back on another airline? The weather in NY was cloudy but not bad.

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

A little bumpy ride . No food was being provided due the the turbulence. That was ok it was a short flight to my standards.

Lower number on this flight so spaced out passengers. Able to enjoy more room to relax during flight. It was lovely.

Broken jer bridge. Poor communication about it. Lost 2 of 4 luggage pieces

Coach seating is debilitating, neither my husband or I can walk the following day

Everything you need to know for your flight from St. Louis to Sault Ste. Marie

Information on your arrival and departure airports

St. Louis (STL)
Sault Ste. Marie (CIU)

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