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$29+ Cheap flights from St. Louis to Detroit (STL - DTT)

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 7/13. Fares are subject to change and may not be available on all flights or dates of travel.
STL — DTT
Jun 20 — Jun 271
Fri 6/20
Fri 6/27
1 adult, Economy
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Cheapflights Tip: The best prices from Lambert-St Louis to Detroit All airports are usually found in April or June, booked 74 days in advance, depart on a Friday or Thursday and return on a Friday

Cheap flight deals from St. Louis to Detroit

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Detroit (DTT). 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 15, 2025.

Round-trip from

$60
(Mytrip)

One-way from

$29
(Kiwi.com)

Popular in

November

Cheapest in

April

Average price

$274

Good round-trip deal

$245 or less

Good one-way deal

$157 or less
From Lambert-St Louis to Detroit (DTT)
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One-way flight from Lambert-St Louis to Detroit (DTT)
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Highest demand for flights based on searches. 7% potential increase in price ($25 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from Lambert-St Louis to Detroit (DTT).
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Price to beat on a one-way flight from Lambert-St Louis to Detroit (DTT).
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Find flight deals from St. Louis to Detroit

Cheapest flights from St. Louis to Detroit
Explore the most affordable flight options available from St. Louis to Detroit. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 15, 2025.

This Mytrip deal was found by Cheapflights users on 6/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2110:47 amSTL - DTW
Nonstop1h 29mSpirit Airlines
Sun 7/279:20 amDTW - STL
Nonstop1h 32mSpirit Airlines
Deal found 6/13$60
This Priceline deal was found by Cheapflights users on 6/14. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/1010:47 amSTL - DTW
Nonstop1h 29mMultiple Airlines
Sun 7/139:36 amDTW - STL
1 stop4h 58mMultiple Airlines
Deal found 6/14$130
This Southwest deal was found by Cheapflights users on 6/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/18:35 pmSTL - DTW
Nonstop1h 30mSouthwest
Mon 8/45:15 amDTW - STL
1 stop4h 15mSouthwest
Deal found 6/13$139
This Delta deal was found by Cheapflights users on 6/12. 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.
Thu 7/36:00 pmSTL - DTW
Nonstop1h 30mDelta
Fri 7/258:00 pmDTW - STL
Nonstop1h 36mDelta
Deal found 6/12$149
This American Airlines deal was found by Cheapflights users on 6/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/57:23 amSTL - DTW
1 stop4h 11mAmerican Airlines
Tue 10/71:52 pmDTW - STL
1 stop4h 28mAmerican Airlines
Deal found 6/13$173
This United Airlines deal was found by Cheapflights users on 6/13. 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.
Wed 10/112:25 pmSTL - DTW
1 stop3h 26mUnited Airlines
Tue 10/77:00 amDTW - STL
1 stop4h 49mUnited Airlines
Deal found 6/13$217
This Booking.com deal was found by Cheapflights users on 6/13. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/175:47 pmSTL - DTW
1 stop17h 35mFrontier
Thu 6/199:36 amDTW - STL
1 stop5h 04mFrontier
Deal found 6/13$258

Cheapflights Fare Finder

Customize your flight search to find flights from St. Louis to Detroit 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 15, 2025.
Use the filters below to find and compare flights from St. Louis to Detroit that are best for you.

Fly from

St. Louis

Fly to

Detroit

Route

Depart

Return

Price

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Mon 7/21

10:47 am-1:16 pm

Nonstop1h 29m

Detroit Metropolitan Wayne County

Sun 7/27

9:20 am-9:52 am

Nonstop1h 32m

$60

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Thu 7/10

10:47 am-1:16 pm

Nonstop1h 29m

Detroit Metropolitan Wayne County

Sun 7/13

9:36 am-1:34 pm

1 stop4h 58m

$130

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Fri 8/1

8:35 pm-11:05 pm

Nonstop1h 30m

Detroit Metropolitan Wayne County

Mon 8/4

5:15 am-8:30 am

1 stop4h 15m

$139

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Thu 7/3

6:00 pm-8:30 pm

Nonstop1h 30m

Detroit Metropolitan Wayne County

Fri 7/25

8:00 pm-8:36 pm

Nonstop1h 36m

$149

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Fri 8/15

6:26 am-12:52 pm

1 stop5h 26m

Detroit Metropolitan Wayne County

Sun 8/17

8:06 am-12:11 pm

1 stop5h 05m

$187

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Tue 6/17

5:47 pm-12:22 pm

1 stop17h 35m

Detroit Metropolitan Wayne County

Thu 6/19

9:36 am-1:40 pm

1 stop5h 04m

$258

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Tue 9/9

5:30 pm-11:41 pm

1 stop5h 11m

Detroit Metropolitan Wayne County

Sun 9/14

6:00 am-2:19 pm

2 stops9h 19m

$303

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Sun 7/13

10:47 am-1:16 pm

Nonstop1h 29m

$29

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Sun 7/20

8:50 pm-11:20 pm

Nonstop1h 30m

$61

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Tue 8/19

2:15 pm-4:49 pm

Nonstop1h 34m

$69

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/14

Showing 1-10 of 14 results
1
2

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

Have a flexible travel schedule? Discover the best time to fly to Detroit 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.

Cheapflights Insights

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

How far ahead should I book a flight from St. Louis to Detroit?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Detroit. Price data was last updated on June 13, 2025.

Booking 73 days in advance of your planned departure date is, on average, the best time to get cheap flights from St. Louis to Detroit. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, April is the cheapest month in which you can book a flight from St. Louis to Detroit (average of $257). Flying from St. Louis to Detroit in March is currently the most expensive (average of $305). 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.

What is the cheapest time of day to fly from STL to DTT?

Find hourly flight availability from St. Louis to Detroit. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 15, 2025.

One of the essential ways to save on airfare from St. Louis to Detroit is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 71% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Detroit. Price data was last updated on June 8, 2025.

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

Weekly flight availability from St. Louis to Detroit

Explore weekly flight availability from St. Louis to Detroit. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 15, 2025.

The most flights from STL to DTT are scheduled on a Thursday (23 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (10 on average).

Rainfall in Detroit by month

Plan your trip to Detroit by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Detroit ranges from 1.8 - 3.1 inches per month. August is typically the wettest month, when rainfall can reach 3.1 in. January is typically the driest time to visit Detroit when rainfall is around 1.8 in.

Temperature in Detroit by month

Plan your trip to Detroit by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Detroit, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 24.8 F).

Reviews of airlines servicing Detroit

Get insights into the airlines that provide service to Detroit. 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 Detroit. Reviews last updated June 15, 2025.
See what other customers who have flown with Southwest, Delta and United Airlines from St. Louis to Detroit have to say. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,285 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.6

Comfort

8.0

Food

7.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Southwest
8.0
Very good
4,285 reviews
Southwest
8.0
Very good
4,285 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.6

Comfort

8.0

Food

7.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Delta
8.0
Very good
7,958 reviews
Southwest
8.0
Very good
4,285 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.6

Comfort

8.0

Food

7.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
United Airlines
7.4
Good
8,793 reviews
Southwest
8.0
Very good
4,285 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.6

Comfort

8.0

Food

7.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,285 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.6

Comfort

8.0

Food

7.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Spirit Airlines
6.3
Okay
8,062 reviews
Southwest
8.0
Very good
4,285 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.6

Comfort

8.0

Food

7.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Detroit. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from St. Louis to Detroit?

    You will need to book a flight from Lambert-St Louis to Detroit All airports if you want to fly from St. Louis to Detroit. At least 4 different airlines have flights from Lambert-St Louis (STL) to All airports (DTT) on a regular basis. There are 16 flights to Detroit from the St. Louis airport per day. If you manage to book one that is nonstop, then you can expect the flight time from STL to DTT to be around 1h 28m.

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

    Currently priced at $60, Spirit Airlines will fly you from St. Louis to Detroit and back. In addition to Spirit Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Southwest and Delta - these airlines can fly you to your destination from $139 and $149, respectively. These flights start at 81% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from St. Louis to Detroit one-way?

    One-way options have recently been found by users for as low as $29 on Spirit Airlines. Other airlines that offer cheap prices include Southwest from $61 and Delta from $69 one-way.

  • What are the most reliable airlines from St. Louis to Detroit?

    Consider Korean Air (93%), Virgin Atlantic (92%) or KLM (88%) when booking your flight. These represent the most reliable airlines when flying from St. Louis to Detroit.

  • What are the cheapest flights from St. Louis to Detroit?

    Looking at all options, your cheapest flight can be booked for $65. While the most popular route (Lambert-St Louis - Detroit Metropolitan Wayne County) can be booked for $58 on average our data indicates $1,427 when flying from St. Louis to Detroit.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Detroit 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 St. Louis to Detroit?

    Currently, April is the cheapest month in which you can book a flight from St. Louis to Detroit (average of $257). Flying from St. Louis to Detroit in March is currently the most expensive (average of $305). 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

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Roseville
Port Huron

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Alternative routes for St. Louis to Detroit

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Top 4 airlines flying from St. Louis to Detroit

Discover the top 4 airlines that operate flights from St. Louis to Detroit. 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 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$37Average$70FlexibilityNo cancel feeOn-time65%
SouthwestCheapest$170Average$337FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$201Average$344FlexibilityNo cancel feeOn-time71%
DeltaCheapest$211Average$318FlexibilityNo cancel feeOn-timeN/A

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